WorldWideScience

Sample records for survey assessed parameters

  1. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Tutuila, American Samoa in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  2. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Pearl & Hermes, Northwestern Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  3. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Howland, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  4. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Rose, American Samoa in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  5. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Alamagan, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  6. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Wake, Pacific Remote Island Areas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  7. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Molokai, Main Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  8. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Kingman, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  9. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Rota, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  10. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Swains, American Samoa in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  11. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Saipan, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  12. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Tau, American Samoa in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  13. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Lanai, Main Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  14. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Agrihan, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  15. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Jarvis, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  16. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Oahu, Main Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  17. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Lisianski, Northwestern Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  18. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Johnston, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  19. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at French Frigate, Northwestern Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  20. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Niihau, Main Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  1. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Sarigan, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  2. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Maui, Main Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  3. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Hawaii, Main Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  4. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Maug, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  5. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Kure, Northwestern Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  6. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Guam, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  7. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Asuncion, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  8. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Aguijan, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  9. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Farallon de Pajaros, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  10. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Tinian, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  11. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Pagan, Marianas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  12. CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Kauai, Main Hawaiian Islands in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef...

  13. Assessment of Established Survey Protocols

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — A form and instructions for quickly and briefly assessing a previously (prior to 2013) reviewed or approved survey protocol for use as a National or Regional survey...

  14. Graduate Assessment Survey Report.

    Science.gov (United States)

    Santa Fe Community Coll., Gainesville, FL. Office of Institutional Research and Planning.

    Determines the degree to which Santa Fe Community College (Florida) is providing quality educational programs and services to its students. Surveys outgoing students to gather their opinions and perceptions of the educational experiences and services they received while attending the college. The survey instrument is divided into three sections:…

  15. Academic Achievement Survey and Educational Assessment Research

    Science.gov (United States)

    Tanaka, Koji

    2009-01-01

    The recent "Nationwide academic achievement and study situation survey" was clearly influenced by the idea of "authentic assessment", an educational assessment perspective focused on "quality" and "engagement". However, when "performance assessment", the assessment method corresponding to this…

  16. Caribbean Marine Mammal Assessment Vessel Surveys

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data sets are a compilation of large vessel surveys for marine mammal stock assessments in Caribbean waters conducted during 2000-2001. These surveys were...

  17. ASSESSMENT OF PHYSICO-CHEMICAL PARAMETERS OF ...

    African Journals Online (AJOL)

    B. S. Chandravanshi

    The present work was conducted to assess the physico-chemical parameters of Tsada Agam River ... Mekelle is the capital city of Tigray regional state, Ethiopia and it is experiencing poor quality ... But, to the best of our knowledge no research was conducted on ..... Clean Water Initiative: Volunteer Stream Monitoring.

  18. Models and parameters for environmental radiological assessments

    Energy Technology Data Exchange (ETDEWEB)

    Miller, C W [ed.

    1984-01-01

    This book presents a unified compilation of models and parameters appropriate for assessing the impact of radioactive discharges to the environment. Models examined include those developed for the prediction of atmospheric and hydrologic transport and deposition, for terrestrial and aquatic food-chain bioaccumulation, and for internal and external dosimetry. Chapters have been entered separately into the data base. (ACR)

  19. An Assessment of the 1983 "Biennial Survey."

    Science.gov (United States)

    McClure, Charles R.

    1985-01-01

    Assesses the value of the Government Printing Office's 1983 "Biennial Survey" as a tool to support depository library planning and decision making. The survey data are evaluated in terms of reliability, validity, and utility, and recommendations are offered for improving the design, administration, and analysis of the survey. (CLB)

  20. A survey on alliances and related parameters in graphs

    Directory of Open Access Journals (Sweden)

    Henning Fernau

    2014-04-01

    Full Text Available In this paper, we show that several graph parameters are known in different areas under completely different names.More specifically, our observations connect signed domination, monopolies, $\\alpha$-domination, $\\alpha$-independence,positive influence domination,and a parameter associated to fast information propagationin networks to parameters related to various notions of global $r$-alliances in graphs.We also propose a new framework, called (global $(D,O$-alliances, not only in order to characterizevarious known variants of alliance and domination parameters, but also to suggest a unifying framework for the study of alliances and domination.Finally, we also give a survey on the mentioned graph parameters, indicating how results transfer due to our observations.

  1. Identification of variables for site calibration and power curve assessment in complex terrain. Task 8, a literature survey on theory and practice of parameter identification, specification and estimation (ISE) techniques

    Energy Technology Data Exchange (ETDEWEB)

    Verhoef, J.P.; Leendertse, G.P. [ECN Wind, Petten (Netherlands)

    2001-04-01

    This document presents the literature survey results on Identification, Specification and Estimation (ISE) techniques for variables within the SiteParIden project. Besides an overview of the different general techniques also an overview is given on EU funded wind energy projects where some of these techniques have been applied more specifically. The main problem in applications like power performance assessment and site calibration is to establish an appropriate model for predicting the considered dependent variable with the aid of measured independent (explanatory) variables. In these applications detailed knowledge on what the relevant variables are and how their precise appearance in the model would be is typically missing. Therefore, the identification (of variables) and the specification (of the model relation) are important steps in the model building phase. For the determination of the parameters in the model a reliable variable estimation technique is required. In EU funded wind energy projects the linear regression technique is the most commonly applied tool for the estimation step. The linear regression technique may fail in finding reliable parameter estimates when the model variables are strongly correlated, either due to the experimental set-up or because of their particular appearance in the model. This situation of multicollinearity sometimes results in unrealistic parameter values, e.g. with the wrong algebraic sign. It is concluded that different approaches, like multi-binning can provide a better way of identifying the relevant variables. However further research in these applications is needed and it is recommended that alternative methods (neural networks, singular value decomposition etc.) should also be tested on their usefulness in a succeeding project. Increased interest in complex terrains, as feasible locations for wind farms, has also emphasised the need for adequate models. A common standard procedure to prescribe the statistical

  2. PASSENGER SERVICE QUALITY PARAMETERS ASSESSMENT AT TRANSPORT INTERCHANGE HUBS

    Directory of Open Access Journals (Sweden)

    Kozlov Pavel Igorevich

    2017-05-01

    Full Text Available The article discusses a quality assessment method for transport decisions made in transport interchange hubs. Analysis of domestic regulatory documentation and international experience on this subject is performed. It is stated that the domestic regulatory documentation lacks such method of assessment. Special attention is paid to study of pedestrian flows in interchange complexes of intermodal transport interchange hubs. The aim of the study is development of the Level of Service comprehensive assessment criterion by analogy with the international practice. The authors propose to use the queueing theory with elements of the theory of graphs, techniques and regularities that underlie the Level of Service (service factor applied in planning and location of TIH in the USA as well as data from field surveys carried out by the pedestrian flows video detection method. During the field surveys it is planned to perform analysis of external and internal factors influencing the formation and composition of a pedestrian flow, to determine quantitative values of the main parameters of pedestrian flow (density, speed, intensity and regularities of their variation depending on the design features of pedestrian traffic environment. Determination of passenger service quality factors in TIH will help to develop an integral criterion based on the Level of Service, taking into account the specifics of TIH functioning in Russia as well as a methodology that allows a reasonable choice of combinations of structural elements and planning parameters of pedestrian traffic objects which will let to reduce construction costs and operating costs for location of interchange complexes.

  3. Atlantic Marine Mammal Assessment Vessel Surveys

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data sets are a compilation of large vessel surveys for marine mammal stock assessments in South Atlantic (Florida to Maryland) waters from 1994 to the...

  4. Building Assessment Survey and Evaluation Data (BASE)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Building Assessment Survey and Evaluation (BASE) study was a five year study to characterize determinants of indoor air quality and occupant perceptions in...

  5. Dynamical Evolution of Young Embedded Clusters: A Parameter Space Survey

    CERN Document Server

    Proszkow, Eva-Marie

    2009-01-01

    This paper investigates the dynamical evolution of embedded stellar clusters from the protocluster stage, through the embedded star-forming phase, and out to ages of 10 Myr -- after the gas has been removed from the cluster. The relevant dynamical properties of young stellar clusters are explored over a wide range of possible star formation environments using N-body simulations. Many realizations of equivalent initial conditions are used to produce robust statistical descriptions of cluster evolution including the cluster bound fraction, radial probability distributions, as well as the distributions of close encounter distances and velocities. These cluster properties are presented as a function of parameters describing the initial configuration of the cluster, including the initial cluster membership N, initial stellar velocities, cluster radii, star formation efficiency, embedding gas dispersal time, and the degree of primordial mass segregation. The results of this parameter space survey, which includes ab...

  6. assessment of water quality parameters of kpeshi lagoon of ghana

    African Journals Online (AJOL)

    User

    ASSESSMENT OF WATER QUALITY PARAMETERS OF. KPESHI LAGOON OF GHANA ... Lagoons are shallow coastal bodies of water separated from the ocean by ... physico-chemical parameters. The main aim is .... factor in eutrophication.

  7. Being surveyed can change later behavior and related parameter estimates

    Science.gov (United States)

    Zwane, Alix Peterson; Zinman, Jonathan; Van Dusen, Eric; Pariente, William; Null, Clair; Miguel, Edward; Kremer, Michael; Hornbeck, Richard; Giné, Xavier; Duflo, Esther; Devoto, Florencia; Crepon, Bruno; Banerjee, Abhijit

    2011-01-01

    Does completing a household survey change the later behavior of those surveyed? In three field studies of health and two of microlending, we randomly assigned subjects to be surveyed about health and/or household finances and then measured subsequent use of a related product with data that does not rely on subjects' self-reports. In the three health experiments, we find that being surveyed increases use of water treatment products and take-up of medical insurance. Frequent surveys on reported diarrhea also led to biased estimates of the impact of improved source water quality. In two microlending studies, we do not find an effect of being surveyed on borrowing behavior. The results suggest that limited attention could play an important but context-dependent role in consumer choice, with the implication that researchers should reconsider whether, how, and how much to survey their subjects. PMID:21245314

  8. Survey: Risk Assessment for Cloud Computing

    Directory of Open Access Journals (Sweden)

    Drissi S.

    2013-01-01

    Full Text Available with the increase in the growth of cloud computing and the changes in technology that have resulted a new ways for cloud providers to deliver their services to cloud consumers, the cloud consumers should be aware of the risks and vulnerabilities present in the current cloud computing environment. An information security risk assessment is designed specifically for that task. However, there is lack of structured risk assessment approach to do it. This paper aims to survey existing knowledge regarding risk assessment for cloud computing and analyze existing use cases from cloud computing to identify the level of risk assessment realization in state of art systems and emerging challenges for future research.

  9. Improved risk assessment by screening sperm parameters.

    Science.gov (United States)

    Plassmann, S; Urwyler, H

    2001-02-28

    The question of whether a 4 or 9 week premating treatment period is more suitable in studies for effects on fertility and early embryonic development, and the extent to which the screening of sperm parameters may contribute to the detection of effects, has been under discussion since the ICH guideline changed in 1994/1995. This study presents a comparison between 4 and 9 weeks treatment with known male reproductive toxicants with regard to sperm motility, count, morphology, abnormal movements and testicular and epididymal histopathology. Mating outcome was examined after 4 weeks treatment. Three compounds with different targets and mechanisms of action were chosen: two testicular toxicants, Pyridoxine and Adriamycin and the epididymal toxicant, alpha-Chlorohydrine. Sperm motility was reduced in males treated with Pyridoxine (markedly) and alpha-Chlorohydrine (slightly) after 4 weeks treatment and in males treated with Adriamycin after 9 weeks treatment. With Pyridoxine and Adriamycin, sperm count was significantly increased after 4 weeks. Histopathological examination after 4 weeks showed characteristic changes leading to marked testicular tubular atrophy at 8/9 weeks, which was confirmed by a significantly reduced sperm count at 8/9 weeks. With alpha-Chlorohydrine, sperm count was not affected and the results of the histopathological examination were equivocal. Changes in sperm morphology were observed after 4/9 weeks of treatment with Pyridoxine. Mating outcome after 4 weeks was markedly affected with both Pyridoxine and alpha-Chlorohydrine, but no effect was observed with Adriamycin. The results of this study indicate that the two testicular toxicants would have been detected as male reproductive toxicants in a 4-week general toxicity study with routine testicular histopathology and examination of sperm parameters, without the need for mating trials. For the epididymal toxicant, alpha-Chlorohydrine, there was slightly reduced sperm motility after 4 weeks

  10. Environmental assessment and exposure reduction of cockroaches: A practice parameter

    OpenAIRE

    Portnoy, Jay; Chew, Ginger L.; Phipatanakul, Wanda; Williams, P. Brock; Grimes, Carl; Kennedy, Kevin; Matsui, Elizabeth C.; Miller, J David; Bernstein, David; Blessing-Moore, Joann; Cox, Linda; Khan, David; Lang, David; Nicklas, Richard; Oppenheimer, John

    2013-01-01

    This parameter was developed by the Joint Task Force on Practice Parameters, representing the American Academy of Allergy, Asthma & Immunology (AAAAI); the American College of Allergy, Asthma & Immunology (ACAAI); and the joint Council of Allergy, Asthma & Immunology. The AAAAI and the ACAAI have jointly accepted responsibility for establishing “Environmental assessment and remediation: a practice parameter.” This is a complete and comprehensive document at the current time. The medical envir...

  11. Hawaii veterinarians' bioterrorism preparedness needs assessment survey.

    Science.gov (United States)

    Katz, Alan R; Nekorchuk, Dawn M; Holck, Peter S; Hendrickson, Lisa A; Imrie, Allison A; Effler, Paul V

    2006-01-01

    The purpose of this study was to assess the objective bioterrorism-related knowledge base and the perceived response readiness of veterinarians in Hawaii to a bioterrorism event, and also to identify variables associated with knowledge-based test performance. An anonymous survey instrument was mailed to all licensed veterinarians residing in Hawaii (N = 229) up to three times during June and July 2004, using numeric identifiers to track non-respondents. The response rate for deliverable surveys was 59% (125 of 212). Only 12% (15 of 123) of respondents reported having had prior training on bioterrorism. Forty-four percent (55 of 125) reported being able to identify a bioterrorism event in animal populations; however, only 17% (21 of 125) felt able to recognize a bioterrorism event in human populations. Only 16% (20 of 123) felt they were able to respond effectively to a bioterrorist attack. Over 90% (106 of 116) expressed their willingness to provide assistance to the state in its response to a bioterrorist event. Veterinarians scored a mean of 70% correct (5.6 out of 8 questions) on the objective knowledge-based questions. Additional bioterrorism preparedness training should be made available, both in the form of continuing educational offerings for practicing veterinarians and as a component of the curriculum in veterinary schools.

  12. Alternative analysis of airborne laser data collected within conventional multi-parameter airborne geophysical surveys

    Science.gov (United States)

    Ahl, Andreas; Supper, R.; Motschka, K.; Schattauer, I.

    2010-05-01

    For the interpretation of airborne gamma-ray spectrometry as well as airborne electromagnetics it is of great importance to determine the distance between the geophysical sensor and the ground surface. Since radar altimeters do not penetrate vegetation, laser altimeters became popular in airborne geophysics over the past years. Currently the airborne geophysical platform of the Geological Survey of Austria (GBA) is equipped with a Riegl LD90-3800VHS-FLP high resolution laser altimeter, measuring the distances according to the first and the last reflected pulse. The goal of the presented study was to explore the possibilities of deriving additional information about the survey area from the laser data and to determine the accuracy of such results. On one hand the difference between the arrival time of the first and the last reflected pulse can be used to determine the height of the vegetation. This parameter is for example important for the correction of damping effects on airborne gamma-ray measurements caused by vegetation. Moreover especially for groundwater studies at catchment scale, this parameter can also be applied to support the spatial assessment of evapotranspiration. In combination with the altitude above geoid, determined by a GPS receiver, a rough digital elevation model of the survey area can be derived from the laser altimetry. Based on a data set from a survey area in the northern part of Austria, close to the border with the Czech Republic, the reliability of such a digital elevation model and the calculated vegetation height was tested. In this study a mean deviation of -1.4m, with a standard deviation of ±3.4m, between the digital elevation model from Upper Austria (25m spatial resolution) and the determined elevation model was determined. We also found an obvious correlation between the calculated vegetation heights greater 15m and the mapped forest published by the ‘Department of Forest Inventory' of the ‘Federal Forest Office' of Austria

  13. Abundances, Stellar Parameters, and Spectra From the SDSS-III/APOGEE Survey

    CERN Document Server

    Holtzman, Jon A; Johnson, Jennifer A; Prieto, Carlos Allende; Anders, Friedrich; Andrews, Brett; Beers, Timothy C; Bizyaev, Dmitry; Blanton, Michael R; Bovy, Jo; Carrera, Ricardo; Cunha, Katia; Eisenstein, Daniel J; Feuillet, Diane; Frinchaboy, Peter M; Galbraith-Frew, Jessica; Perez, Ana E Garcia; Hernandez, D Anibal Garcia; Hasselquist, Sten; Hayden, Michael R; Hearty, Fred R; Ivans, Inese; Majewski, Steven R; Martell, Sarah; Meszaros, Szabolcs; Muna, Demitri; Nidever, David L; Nguyen, Duy Cuong; O'Connell, Robert W; Pan, Kaike; Pinsonneault, Marc; Robin, Annie C; Schiavon, Ricardo P; Shane, Neville; Sobeck, Jennifer; Smith, Verne V; Troup, Nicholas; Weinberg, David H; Wilson, John C; Wood-Vasey, W M; Zamora, Olga; Zasowski, Gail

    2015-01-01

    The SDSS-III/APOGEE survey operated from 2011-2014 using the APOGEE spectrograph, which collects high-resolution (R~22,500), near-IR (1.51-1.70 microns) spectra with a multiplexing (300 fiber-fed objects) capability. We describe the survey data products that are publicly available, which include catalogs with radial velocity, stellar parameters, and 15 elemental abundances for over 150,000 stars, as well as the more than 500,000 spectra from which these quantities are derived. Calibration relations for the stellar parameters (Teff, log g, [M/H], [alpha/M]) and abundances (C, N, O, Na, Mg, Al, Si, S, K, Ca, Ti, V, Mn, Fe, Ni) are presented and discussed. The internal scatter of the abundances within clusters indicates that abundance precision is generally between 0.05 and 0.09 dex across a broad temperature range; within more limited ranges and at high S/N, it is smaller for some elemental abundances. We assess the accuracy of the abundances using comparison of mean cluster metallicities with literature values...

  14. Early type galaxies and structural parameters from ESO public survey KiDS

    CERN Document Server

    Roy, N; La Barbera, F; Tortora, C; Getman, F; Radovich, M; Capaccioli, M

    2015-01-01

    The Kilo Degree survey (KiDS) is a large-scale optical imaging survey carried out with the VLT Survey Telescope (VST), which is the ideal tool for galaxy evolution studies. We expect to observe millions of galaxies for which we extract the structural parameters in four wavebands (u, g, r and i). This sample will represent the largest dataset with measured structural parameters up to a redshift $z=0.5$. In this paper we will introduce the sample, and describe the 2D fitting procedure using the 2DPHOT environment and the validation of the parameters with an external catalog.

  15. Early Type Galaxies and Structural Parameters from ESO Public Survey KiDS

    Science.gov (United States)

    Roy, N.; Napolitano, N. R.; La Barbera, F.; Tortora, C.; Getman, F.; Radovich, M.; Capaccioli, M.

    The Kilo Degree survey (KiDS) is a large-scale optical imaging survey carried out with the VLT Survey Telescope (VST), which is the ideal tool for galaxy evolution studies. We expect to observe millions of galaxies for which we extract the structural parameters in four wavebands (u, g, r and i). This sample will represent the largest dataset with measured structural parameters up to a redshift z = 0. 5. In this paper we will introduce the sample, and describe the 2D fitting procedure using the 2DPHOT environment and the validation of the parameters with an external catalog.

  16. Atlantic Protected Species Assessment Aerial Surveys

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data sets include a compilation of aerial line-transect surveys conducted over continental shelf waters of the southeastern U.S. Surveys have been conducted...

  17. Estimating cosmological parameters from future gravitational lens surveys

    CERN Document Server

    Dobke, Benjamin M; Fassnacht, Christopher D; Auger, Matthew W

    2009-01-01

    Upcoming ground and space based observatories such as the DES, the LSST, the JDEM concepts and the SKA, promise to dramatically increase the size of strong gravitational lens samples. A significant fraction of the systems are expected to be time delay lenses. Many of the existing lensing degeneracies become less of an issue with large samples since the distributions of a number of parameters are predictable, and can be incorporated into an analysis, thus helping to lessen the degeneracy. Assuming a mean galaxy density profile that does not evolve with redshift, a Lambda-CDM cosmology, and Gaussian distributions for bulk parameters describing the lens and source populations, we generate synthetic lens catalogues and examine the relationship between constraints on the Omega_m - Omega_Lambda plane and H_0 with increasing lens sample size. We find that, with sample sizes of ~400 time delay lenses, useful constraints can be obtained for Omega_m and Omega_Lambda with approximately similar levels of precision as fro...

  18. LAND SURVEY AND ASSESSMENT FOR RELOCATION

    OpenAIRE

    Hung, Chia-Hung; LIN, Han-Liliang; YAO, Chia-Jun

    2012-01-01

    The Construction and Planning Agency, Ministry of the Interior, called for the meeting of “Proper village relocation in response to the ‘Efforts of August 8 Flood Rescue and Reconstruction’” on Aug 19 2009 to confirm the subsequent house reconstruction operations and the activation of initial survey procedure of permanent relocation sites. The “site safety survey group” was established immediately after the meeting to start the safety evaluation and survey of the sites of permanent relocation...

  19. Multi-temporal Assessment of Forest Cover, Stocking parameters ...

    African Journals Online (AJOL)

    user

    The study assessed forest cover, stocking parameters and above-ground tree biomass dynamics in the ..... closed woodland, open woodland, bushed grassland, Marshaland, ... structure. Three VIs were tested i.e. Atmospherically Resistance. Vegetation Index .... (2008) and Vihemäki (2009) have argued that a complex.

  20. Assessment of caries experience in epidemiological surveys: A review

    NARCIS (Netherlands)

    J.O. Agbaje (Jimoh); E.M.E.H. Lesaffre (Emmanuel); D. Declerck (Dominique)

    2012-01-01

    textabstractObjectives: To review aspects of methods for assessing caries experience (CE) in epidemiological surveys. Method: A search of English language literature published between January 2000 and December 2008 was undertaken using 'epidemiology', 'dental caries' and 'assessment' as search

  1. Quantitative scintigraphic parameters for the assessment of renal transplant patients

    Energy Technology Data Exchange (ETDEWEB)

    El Maghraby, T.A.F.; Eck-Smit, B.L.F. van; Pauwels, E.K.J. [Department of Radiology, Division of Nuclear Medicine, Leiden University Medical Centre, P.O. Box 9600, 2300 RC Leiden (Netherlands); Fijter, J.W. de [Department of Nephrology, Leiden University Medical Centre, Leiden (Netherlands)

    1998-10-01

    Radionuclide renal diagnostic studies play an important role in assessing renal allograft function especially in the early post transplant period. In the last two decades various quantitative parameters have been derived from the radionuclide renogram to facilitate and confirm the changes in perfusion and/or function of the kidney allograft. In this review article we discuss the quantitative parameters that have been used to assess graft condition with emphasis on the early post-operative period. These quantitative methods were divided into parameters used for assessing renal graft perfusion and parameters used for evaluating parenchymal function. The blood flow in renal transplants can be quantified by measuring (a) the rate of activity appearance in the kidney graft; (b) the ratio of the integral activity under the transplanted kidney and arterial curves e.g. Hilson's perfusion index and Kircher's kidney/aortic ratio; (c) calculating the renal vascular transit time by deconvolution analysis. The literature overview on these parameters showed us that they have some practical disadvantages of requiring high quality bolus injection and numerical variations related to changes in the site and size of regions of interest. In addition, the perfusion parameter values suffer from significant overlap when various graft pathologies coexist. Quantitative evaluation of the graft parenchymal extraction and excretion was assessed by parameters derived from {sup 123}I/{sup 131}I-OIH,{sup 99m}Tc-DTPA or {sup 99m}Tc-MAG3 renograms. We review in this article a number of parenchymal parameters which include (1) plasma clearance methods like glomerular filtration rate (GFR) and effective renal plasma flow (ERPF); (2) renal transit times such as parenchymal mean transit time, T{sub max}, T{sub 1/2}; (3) parenchymal uptake and excretion indices as the accumulation index, graft uptake capacity at 2 and 10 min, excretion index and elimination index. These indices, however, are

  2. Environmental assessment and exposure reduction of cockroaches: a practice parameter.

    Science.gov (United States)

    Portnoy, Jay; Chew, Ginger L; Phipatanakul, Wanda; Williams, P Brock; Grimes, Carl; Kennedy, Kevin; Matsui, Elizabeth C; Miller, J David; Bernstein, David; Blessing-Moore, Joann; Cox, Linda; Khan, David; Lang, David; Nicklas, Richard; Oppenheimer, John; Randolph, Christopher; Schuller, Diane; Spector, Sheldon; Tilles, Stephen A; Wallace, Dana; Seltzer, James; Sublett, James

    2013-10-01

    This parameter was developed by the Joint Task Force on Practice Parameters, representing the American Academy of Allergy, Asthma & Immunology (AAAAI); the American College of Allergy, Asthma & Immunology (ACAAI); and the Joint Council of Allergy, Asthma & Immunology. The AAAAI and the ACAAI have jointly accepted responsibility for establishing "Environmental assessment and remediation: a practice parameter." This is a complete and comprehensive document at the current time. The medical environment is a changing environment, and not all recommendations will be appropriate for all patients. Because this document incorporated the efforts of many participants, no single person, including those who served on the Joint Task Force, is authorized to provide an official AAAAI or ACAAI interpretation of these practice parameters. Any request for information about or an interpretation of these practice parameters by the AAAAI or ACAAI should be directed to the Executive Offices of the AAAAI, the ACAAI, and the Joint Council of Allergy, Asthma & Immunology. These parameters are not designed for use by pharmaceutical companies in drug promotion. The findings and conclusions in this manuscript are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention (CDC). Published by Mosby, Inc.

  3. Assessment of printability for printed electronics patterns by measuring geometric dimensions and defining assessment parameters

    Energy Technology Data Exchange (ETDEWEB)

    Jeon, Sung Woong [Dept. of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu (Korea, Republic of); Kim, Cheol; Kim, Chung Hwan [Chungnam National University, Daejeon (Korea, Republic of)

    2016-12-15

    The printability of patterns for printed electronic devices determines the performance, yield rate, and reliability of the devices; therefore, it should be assessed quantitatively. In this paper, parameters for printability assessment of printed patterns for width, pinholes, and edge waviness are suggested. For quantitative printability assessment, printability grades for each parameter are proposed according to the parameter values. As examples of printability assessment, printed line patterns and mesh patterns obtained using roll-to-roll gravure printing are used. Both single-line patterns and mesh patterns show different levels of printability, even in samples obtained using the same printing equipment and conditions. Therefore, for reliable assessment, it is necessary to assess the printability of the patterns by enlarging the sampling area and increasing the number of samples. We can predict the performance of printed electronic devices by assessing the printability of the patterns that constitute them.

  4. Accurate Atmospheric Parameters at Moderate Resolution Using Spectral Indices: Preliminary Application to the MARVELS Survey

    CERN Document Server

    Ghezzi, Luan; Lorenzo-Oliveira, Diego; de Mello, Gustavo F Porto; Santiago, Basílio X; De Lee, Nathan; Lee, Brian L; da Costa, Luiz N; Maia, Marcio A G; Ogando, Ricardo L C; Wisniewski, John P; Hernández, Jonay I González; Stassun, Keivan G; Fleming, Scott W; Schneider, Donald P; Mahadevan, Suvrath; Cargile, Phillip; Ge, Jian; Pepper, Joshua; Wang, Ji

    2014-01-01

    Studies of Galactic chemical and dynamical evolution in the solar neighborhood depend on the availability of precise atmospheric parameters (Teff, [Fe/H] and log g) for solar-type stars. Many large-scale spectroscopic surveys operate at low to moderate spectral resolution for efficiency in observing large samples, which makes the stellar characterization difficult due to the high degree of blending of spectral features. While most surveys use spectral synthesis, in this work we employ an alternative method based on spectral indices to determine the atmospheric parameters of a sample of nearby FGK dwarfs and subgiants observed by the MARVELS survey at moderate resolving power (R~12,000). We have developed three codes to automatically normalize the observed spectra, measure the equivalent widths of the indices and, through the comparison of those with values calculated with pre-determined calibrations, derive the atmospheric parameters of the stars. The calibrations were built using a sample of 309 stars with p...

  5. Ductile fracture assessment using parameters from small specimens

    Energy Technology Data Exchange (ETDEWEB)

    Talja, H. [VTT Manufacturing Technology, Espoo (Finland)

    1998-12-31

    The topic of this thesis is the computational aspects in the assessment of ductile failure in metals. The first part briefly describes the micromechanics of ductile crack growth and methods for assessing it. The `classic` approach to describe material behaviour using fracture mechanics is summarised. The limitations of the one parameter approach based on the stress intensity factor K or the J- integral are described. Attempts to extend the application field of fracture mechanics parameters by introducing triaxility or constraint parameters are also presented. Different local approach methodologies are summarised. Special attention is paid to the modified Gurson model, which is based on micro-mechanical studies of void initiation, growth and coalescence. The main part of the work consists of numerical analyses with the modified Gurson model. The parameters of the model are first determined by matching tensile test results by finite element analysis, and then applied to J-R curve prediction. This methodology is applied to several reactor pressure vessel materials: A533B, 20 MnMoNi 5 5 and austenitic VVER 440 cladding. As a result, the applicability of different specimen types for the parameter determination of the modified Gurson model has been evaluated. Because a combination of experimental and numerical work is needed, it proved to be most feasible to use specimens which can be simulated with two-dimensional or axisymmetric finite element models. Further, a practical way to treat anisotropic material behaviour using the modified Gurson model by using separate parameter sets for different orientations has been proposed and verified. The correspondence between the observed scatters in tensile and fracture mechanical test results has been examined. Best agreement was obtained fitting the scatter of tensile tests by varying the values of initial parameters. Reasons for apparently higher ductility measured from sub-sized than standard size tensile specimens were

  6. Graduate Assessment Survey Report, 2000-2001.

    Science.gov (United States)

    Santa Fe Community Coll., Gainesville, FL. Office of Institutional Research and Planning.

    This report presents the 2000-2001 results of Santa Fe Community College's (SFCC) (Florida) annual survey of outgoing students' opinions and perceptions of their educational experiences and institutional services. Responses were received from 2,397 students, all of whom were candidates for graduation in associate and certificate programs. The 10…

  7. Assessing the ESSENCE Biosurveillance System: Results of a User Survey

    Science.gov (United States)

    2011-03-01

    ESSENCE BIOSURVEILLANCE SYSTEM: RESULTS OF A USER SURVEY by Randi M. Korman March 2011 Thesis Advisor: Ron Fricker Second Reader: James...COVERED Master’s Thesis 4. TITLE AND SUBTITLE: Assessing the ESSENCE Biosurveillance System: Results of a User Survey 6. AUTHOR(S) Randi M. Korman 5... Biosurveillance , ESSENCE, NMPHC, Surveillance System, Survey 16. PRICE CODE 17. SECURITY CLASSIFICATION OF REPORT Unclassified 18. SECURITY

  8. Gulf of Mexico Marine Mammal Assessment Vessel Surveys

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data sets are a compilation of large vessel surveys for marine mammal stock assessments in the Gulf of Mexico from 1991 to the present. These are designed as...

  9. Gulf of Mexico Marine Mammal Assessment Aerial Surveys - NRDA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Aerial surveys were conducted during the spring-summer of 2010 and seasonally during 2011-2012 to assess the abundance and spatial distribution of marine mammals and...

  10. Wind Climate Parameters for Wind Turbine Fatigue Load Assessment

    DEFF Research Database (Denmark)

    Toft, Henrik Stensgaard; Svenningsen, Lasse; Moser, Wolfgang

    2016-01-01

    Site-specific assessment of wind turbine design requires verification that the individual wind turbine components can survive the site-specific wind climate. The wind turbine design standard, IEC 61400-1 (third edition), describes how this should be done using a simplified, equivalent wind climate...... established from the on-site distribution functions of the horizontal mean wind speeds, the 90% quantile of turbulence along with average values of vertical wind shear and air density and the maximum flow inclination. This paper investigates the accuracy of fatigue loads estimated using this equivalent wind...... climate required by the current design standard by comparing damage equivalent fatigue loads estimated based on wind climate parameters for each 10 min time-series with fatigue loads estimated based on the equivalent wind climate parameters. Wind measurements from Boulder, CO, in the United States...

  11. Self-Assessment of Distance Education Institutions: Identification of Parameters for Programme Assessment.

    Science.gov (United States)

    Rausaria, R. R.; Lele, Nalini A.

    2002-01-01

    Identifies and explains the parameters relevant for self-assessment and accreditation of programs in distance mode institutions. Discusses general perspectives on quality; defining quality in higher education and in open learning and distance education modes; organization structure of open universities; measurement of quality; parameters for…

  12. Single Parameter Range and Whole Parameter Range, and Assessment of Novelty

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    It is a relatively common phenomenon to limit technical features with parameter range in patent claims. It is argued in this article that the parameter range should be distinctly divided into single parameter range and whole parameter range depending on the different mode and function of limitation. Each and every parameter in a single parameter range may independently achieve a technical effect, and limit one embodiment alone; while a single parameter in the whole parameter range cannot independently ac...

  13. Improved sampling for airborne surveys to estimate wildlife population parameters in the African Savannah

    NARCIS (Netherlands)

    Khaemba, W.; Stein, A.

    2002-01-01

    Parameter estimates, obtained from airborne surveys of wildlife populations, often have large bias and large standard errors. Sampling error is one of the major causes of this imprecision and the occurrence of many animals in herds violates the common assumptions in traditional sampling designs like

  14. Improved sampling for airborne surveys to estimate wildlife population parameters in the African Savannah

    NARCIS (Netherlands)

    Khaemba, W.; Stein, A.

    2002-01-01

    Parameter estimates, obtained from airborne surveys of wildlife populations, often have large bias and large standard errors. Sampling error is one of the major causes of this imprecision and the occurrence of many animals in herds violates the common assumptions in traditional sampling designs like

  15. Geographic and Operational Site Parameters List (GOSPL) for Hanford Assessments

    Energy Technology Data Exchange (ETDEWEB)

    Last, George V.; Nichols, William E.; Kincaid, Charles T.

    2006-06-01

    This data package was originally prepared to support a 2004 composite analysis (CA) of low-level waste disposal at the Hanford Site. The Technical Scope and Approach for the 2004 Composite Analysis of Low Level Waste Disposal at the Hanford Site (Kincaid et. al. 2004) identified the requirements for that analysis and served as the basis for initial preparation of this data package. Completion of the 2004 CA was later deferred, with the 2004 Annual Status Report for the Composite Analysis of Low-Level Waste Disposal in the Central Plateau at the Hanford Site (DOE 2005) indicating that a comprehensive update to the CA was in preparation and would be submitted in 2006. However, the U.S. Department of Energy (DOE) has recently decided to further defer the CA update and will use the cumulative assessment currently under preparation for the environmental impact statement (EIS) being prepared for tank closure and other site decisions as the updated CA. Submittal of the draft EIS is currently planned for FY 2008. This data package describes the facility-specific parameters (e.g. location, operational dates, etc.) used to numerically simulate contaminant flow and transport in large-scale Hanford assessments. Kincaid et al. (2004) indicated that the System Assessment Capability (SAC) (Kincaid et al. 2000; Bryce et al. 2002; Eslinger 2002a, 2002b) would be used to analyze over a thousand different waste sites. A master spreadsheet termed the Geographic and Operational Site Parameters List (GOSPL) was assembled to facilitate the generation of keyword input files containing general information on each waste site/facility, its operational/disposal history, and its environmental settings (past, current, and future). This report briefly describes each of the key data fields, including the source(s) of data, and provides the resulting inputs to be used for large-scale Hanford assessments.

  16. Preliminary geothermal assessment surveys for the State of Hawaii

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, D.M.; Cox, M.E.; Lienert, B.R.; Kauahikaua, J.P.; Mattice, M.D.

    1980-09-01

    The Geothermal Resource Assessment Program of the Hawaii Institute of Geophysics has conducted a series of geochemical and geophysical surveys in ten separate locations within the State of Hawaii in an effort to identify and assess potential geothermal areas throughout the state. The techniques applied include groundwater chemistry and temperatures, soil mercury surveys, ground radon emanometry, time-domain electromagnetic surveys and Schlumberger resistivity soundings. Although geochemical and geophysical anomalies were identified in nearly all the survey sites, those areas which show most promise, based on presently available data, for a geothermal resource are as follows: Puna, Kailua Kona, and Kawaihae on the island of Hawaii; Haiku-Paia and Olowalu-Ukumehame canyons on Maui; and Lualualei Valley on Oahu. Further surveys are planned for most of these areas in order to further define the nature of the thermal resource present.

  17. The Effects of Relativistic Corrections on Cosmological Parameter Estimations from SZE Cluster Surveys

    CERN Document Server

    Fan, Z H

    2003-01-01

    Sunyaev-Zel'dovich Effect (SZE) cluster surveys are anticipated to yield tight constraints on cosmological parameters such as the equation of state of dark energy. In this paper, we study the impact of relativistic corrections of the thermal SZE on the cluster number counts expected from a cosmological model and thus, assuming that other cosmological parameters are known to high accuracies, on the determination of the $w$ parameter and $\\sigma_8$ from a SZE cluster survey, where $w=p/\\rho$ with $p$ the pressure and $\\rho$ the density of dark energy, and $\\sigma_8$ is the rms of the extrapolated linear density fluctuation smoothed over $8\\hbox{Mpc}h^{-1}$. For the purpose of illustrating the effects of relativistic corrections, our analyses mainly focus on $\

  18. Accurate Atmospheric Parameters at Moderate Resolution Using Spectral Indices: Preliminary Application to the MARVELS Survey

    Science.gov (United States)

    Ghezzi, Luan; Dutra-Ferreira, Letícia; Lorenzo-Oliveira, Diego; Porto de Mello, Gustavo F.; Santiago, Basílio X.; De Lee, Nathan; Lee, Brian L.; da Costa, Luiz N.; Maia, Marcio A. G.; Ogando, Ricardo L. C.; Wisniewski, John P.; González Hernández, Jonay I.; Stassun, Keivan G.; Fleming, Scott W.; Schneider, Donald P.; Mahadevan, Suvrath; Cargile, Phillip; Ge, Jian; Pepper, Joshua; Wang, Ji; Paegert, Martin

    2014-12-01

    Studies of Galactic chemical, and dynamical evolution in the solar neighborhood depend on the availability of precise atmospheric parameters (effective temperature T eff, metallicity [Fe/H], and surface gravity log g) for solar-type stars. Many large-scale spectroscopic surveys operate at low to moderate spectral resolution for efficiency in observing large samples, which makes the stellar characterization difficult due to the high degree of blending of spectral features. Therefore, most surveys employ spectral synthesis, which is a powerful technique, but relies heavily on the completeness and accuracy of atomic line databases and can yield possibly correlated atmospheric parameters. In this work, we use an alternative method based on spectral indices to determine the atmospheric parameters of a sample of nearby FGK dwarfs and subgiants observed by the MARVELS survey at moderate resolving power (R ~ 12,000). To avoid a time-consuming manual analysis, we have developed three codes to automatically normalize the observed spectra, measure the equivalent widths of the indices, and, through a comparison of those with values calculated with predetermined calibrations, estimate the atmospheric parameters of the stars. The calibrations were derived using a sample of 309 stars with precise stellar parameters obtained from the analysis of high-resolution FEROS spectra, permitting the low-resolution equivalent widths to be directly related to the stellar parameters. A validation test of the method was conducted with a sample of 30 MARVELS targets that also have reliable atmospheric parameters derived from the high-resolution spectra and spectroscopic analysis based on the excitation and ionization equilibria method. Our approach was able to recover the parameters within 80 K for T eff, 0.05 dex for [Fe/H], and 0.15 dex for log g, values that are lower than or equal to the typical external uncertainties found between different high-resolution analyses. An additional test was

  19. Detection Parameters Design for Compound Survey Seafloor Targets by Multibeam Sonar

    Directory of Open Access Journals (Sweden)

    Li Hong Wu

    2013-08-01

    Full Text Available Swath bathymetry system surveys with wide swath, high location resolution, and is used to detect sea bottom terrain. But the object resolution detected decreases as the depth increasing, its data processing with high mistake, used rarely in sea floor object survey.So GeoSwath, a multibeam sonar does. Although it covers an angular range of -120°to 120 °from the vertical direction, providing high density and high quality bathymetry data along with side scan like amplitude imagery, the data processing is more relied on human intervention to get accurate depth contour and sonar image which prevent its propular use in survey of seafloor targets. The purpose of this article presents survey parameter setting during survey and data processing technique to survey seafloor target by GeoSwath system, which set the proper detect parameters including ping length, ship velocity to increase the points over targets, setting navigation line parallel to the maximum dimension of target during survey, adopting appropriate filter to depth data processing and using TVG control over amplitude data to get accurate depth grid and sonar image of seafloor target. Finally, the way is used to measure the artificial object in harbor and two ship wrecks at sea, compound with the sonar image taken by the forward looking sonar, to search the ship wreck near harbor, to help to recognize the targets and locates its real position. This technology improves GeoSwath survey capability with compound detection and is helpful for make precise map for waterway. Also this work is helpful to achieve detecting seafloor objects fast, accurately, effectively in underwater large scale area during salvation and rescue task.  

  20. Cognitive Assessment Practices: A Survey of School Psychologists

    Science.gov (United States)

    Sotelo-Dynega, Marlene; Dixon, Shauna G.

    2014-01-01

    The present article describes an exploratory study regarding the preferred cognitive assessment practices of current school psychologists. Three hundred and twenty-three school psychologists participated in the survey. The results suggest that the majority of school psychologists endorsed that they base their assessment practices on an underlying…

  1. Survey of Biomass Resource Assessments and Assessment Capabilities in APEC Economies

    Energy Technology Data Exchange (ETDEWEB)

    Milbrandt, A.; Overend, R. P

    2008-11-01

    This survey of biomass resource assessments and assessment capabilities in Asia-Pacific Economic Cooperation (APEC) economies considered various sources: academic and government publications, media reports, and personal communication with contacts in member economies.

  2. Assessing the importance of terrain parameters on glide avalanche release

    Science.gov (United States)

    Peitzsch, Erich H.; Hendrikx, Jordy; Fagre, Daniel B.

    2014-01-01

    Glide snow avalanches are dangerous and difficult to predict. Despite recent research there is still a lack of understanding regarding the controls of glide avalanche release. Glide avalanches often occur in similar terrain or the same locations annually and observations suggest that topography may be critical. Thus, to gain an understanding of the terrain component of these types of avalanches we examined terrain parameters associated with glide avalanche release as well as areas of consistent glide crack formation but no subsequent avalanches. Glide avalanche occurrences visible from the Going-to-the-Sun Road corridor in Glacier National Park, Montana from 2003-2013 were investigated using an avalanche database derived of daily observations each year from April 1 to June 15. This yielded 192 glide avalanches in 53 distinct avalanche paths. Each avalanche occurrence was digitized in a GIS using satellite, oblique, and aerial imagery as reference. Topographical parameters such as area, slope, aspect, elevation and elevation were then derived for the entire dataset utilizing GIS tools and a 10m DEM. Land surface substrate and surface geology were derived from National Park Service Inventory and Monitoring maps and U.S. Geological Survey surface geology maps, respectively. Surface roughness and glide factor were calculated using a four level classification index. . Then, each avalanche occurrence was aggregated to general avalanche release zones and the frequencies were compared. For this study, glide avalanches released in elevations ranging from 1300 to 2700 m with a mean aspect of 98 degrees (east) and a mean slope angle of 38 degrees. The mean profile curvature for all glide avalanches was 0.15 and a plan curvature of -0.01, suggesting a fairly linear surface (i.e. neither convex nor concave). The glide avalanches occurred in mostly bedrock made up of dolomite and limestone slabs and talus deposits with very few occurring in alpine meadows. However, not all glide

  3. Accurate atmospheric parameters at moderate resolution using spectral indices: Preliminary application to the marvels survey

    Energy Technology Data Exchange (ETDEWEB)

    Ghezzi, Luan; Da Costa, Luiz N.; Maia, Marcio A. G.; Ogando, Ricardo L. C. [Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400 (Brazil); Dutra-Ferreira, Letícia; Lorenzo-Oliveira, Diego; Porto de Mello, Gustavo F.; Santiago, Basílio X. [Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400 (Brazil); De Lee, Nathan [Department of Physics and Geology, Northern Kentucky University, Highland Heights, KY 41099 (United States); Lee, Brian L.; Ge, Jian [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611-2055 (United States); Wisniewski, John P. [H. L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks St Norman, OK 73019 (United States); González Hernández, Jonay I. [Instituto de Astrofísica de Canarias (IAC), E-38205 La Laguna, Tenerife (Spain); Stassun, Keivan G.; Cargile, Phillip; Pepper, Joshua [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); Fleming, Scott W. [Space Telescope Science Institute - STScI, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Schneider, Donald P.; Mahadevan, Suvrath [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States); Wang, Ji, E-mail: luan@linea.gov.br [Department of Astronomy, Yale University, New Haven, CT 06511 (United States); and others

    2014-12-01

    Studies of Galactic chemical, and dynamical evolution in the solar neighborhood depend on the availability of precise atmospheric parameters (effective temperature T {sub eff}, metallicity [Fe/H], and surface gravity log g) for solar-type stars. Many large-scale spectroscopic surveys operate at low to moderate spectral resolution for efficiency in observing large samples, which makes the stellar characterization difficult due to the high degree of blending of spectral features. Therefore, most surveys employ spectral synthesis, which is a powerful technique, but relies heavily on the completeness and accuracy of atomic line databases and can yield possibly correlated atmospheric parameters. In this work, we use an alternative method based on spectral indices to determine the atmospheric parameters of a sample of nearby FGK dwarfs and subgiants observed by the MARVELS survey at moderate resolving power (R ∼ 12,000). To avoid a time-consuming manual analysis, we have developed three codes to automatically normalize the observed spectra, measure the equivalent widths of the indices, and, through a comparison of those with values calculated with predetermined calibrations, estimate the atmospheric parameters of the stars. The calibrations were derived using a sample of 309 stars with precise stellar parameters obtained from the analysis of high-resolution FEROS spectra, permitting the low-resolution equivalent widths to be directly related to the stellar parameters. A validation test of the method was conducted with a sample of 30 MARVELS targets that also have reliable atmospheric parameters derived from the high-resolution spectra and spectroscopic analysis based on the excitation and ionization equilibria method. Our approach was able to recover the parameters within 80 K for T {sub eff}, 0.05 dex for [Fe/H], and 0.15 dex for log g, values that are lower than or equal to the typical external uncertainties found between different high-resolution analyses. An

  4. Assigning probability distributions to input parameters of performance assessment models

    Energy Technology Data Exchange (ETDEWEB)

    Mishra, Srikanta [INTERA Inc., Austin, TX (United States)

    2002-02-01

    This study presents an overview of various approaches for assigning probability distributions to input parameters and/or future states of performance assessment models. Specifically,three broad approaches are discussed for developing input distributions: (a) fitting continuous distributions to data, (b) subjective assessment of probabilities, and (c) Bayesian updating of prior knowledge based on new information. The report begins with a summary of the nature of data and distributions, followed by a discussion of several common theoretical parametric models for characterizing distributions. Next, various techniques are presented for fitting continuous distributions to data. These include probability plotting, method of moments, maximum likelihood estimation and nonlinear least squares analysis. The techniques are demonstrated using data from a recent performance assessment study for the Yucca Mountain project. Goodness of fit techniques are also discussed, followed by an overview of how distribution fitting is accomplished in commercial software packages. The issue of subjective assessment of probabilities is dealt with in terms of the maximum entropy distribution selection approach, as well as some common rules for codifying informal expert judgment. Formal expert elicitation protocols are discussed next, and are based primarily on the guidance provided by the US NRC. The Bayesian framework for updating prior distributions (beliefs) when new information becomes available is discussed. A simple numerical approach is presented for facilitating practical applications of the Bayes theorem. Finally, a systematic framework for assigning distributions is presented: (a) for the situation where enough data are available to define an empirical CDF or fit a parametric model to the data, and (b) to deal with the situation where only a limited amount of information is available.

  5. Fisher matrix forecast on cosmological parameters from the dark energy survey 2-point angular correlation function

    Energy Technology Data Exchange (ETDEWEB)

    Sobreira, F.; Rosenfeld, R. [Universidade Estadual Paulista Julio de Mesquita Filho (IFT/UNESP), Sao Paulo, SP (Brazil). Inst. Fisica Teorica; Simoni, F. de; Costa, L.A.N. da; Gaia, M.A.G.; Ramos, B.; Ogando, R.; Makler, M. [Laboratorio Interinstitucional de e-Astronomia (LIneA), Rio de Janeiro, RJ (Brazil)

    2011-07-01

    Full text: We study the cosmological constraints expected for the upcoming project Dark Energy Survey (DES) with the full functional form of the 2-point angular correlation function. The angular correlation function model applied in this work includes the effects of linear redshift-space distortion, photometric redshift errors (assumed to be Gaussian) and non-linearities prevenient from gravitational infall. The Fisher information matrix is constructed with the full covariance matrix, which takes the correlation between nearby redshift shells in a proper manner. The survey was sliced into 20 redshift shells in the range 0:4 {<=} z {<=} 1:40 with a variable angular scale in order to search only the scale around the signal from the baryon acoustic oscillation, therefore well within the validity of the non-linear model employed. We found that under those assumptions and with a flat {Lambda}CDM WMAP7 fiducial model, the DES will be able to constrain the dark energy equation of state parameter w with a precision of {approx} 20% and the cold dark matter with {approx} 11% when marginalizing over the other 25 parameters (bias is treated as a free parameter for each shell). When applying WMAP7 priors on {Omega}{sub baryon}, {Omega} c{sub dm}, n{sub s}, and HST priors on the Hubble parameter, w is constrained with {approx} 9% precision. This shows that the full shape of the angular correlation function with DES data will be a powerful probe to constrain cosmological parameters. (author)

  6. Improvement of the JRC Calculation Using Different Parameters Obtained Through a New Survey Method Applied to Rock Discontinuities

    Science.gov (United States)

    Alameda-Hernández, Pedro; Jiménez-Perálvarez, Jorge; Palenzuela, José A.; El Hamdouni, Rachid; Irigaray, Clemente; Cabrerizo, Miguel A.; Chacón, José

    2014-11-01

    This paper presents a new, fast and economical method for digitizing a rock surface profile to determine its joint roughness coefficient (JRC) value (Barton and Choubey, Rock Mech Rock Eng 10:1-54, 1977) using a set of existing parameters, the appropriateness of which has been tested. The new procedure was applied to four rock road cuts in the Alpujarra area of Granada province (Andalusia, Spain), supported by 117 digitized profiles. The method avoids any personal subjectivity bias. The usual subjectivity in the visualization and assessment of the JRC value is estimated here by a survey test answered by 90 trained users. The survey test consisted of a set of JRC visual comparisons of 12 roughness profiles, selected from the 117 profiles surveyed during the field research in the Alpujarra region, with the Barton typical profiles. The results of the survey clearly show systematic inaccuracies in the traditional procedure that are reduced if the advice presented in the conclusions of this paper is taken in account when performing the visual estimation.

  7. Correcting cosmological parameter biases for all redshift surveys induced by estimating and reweighting redshift distributions

    Science.gov (United States)

    Rau, Markus Michael; Hoyle, Ben; Paech, Kerstin; Seitz, Stella

    2017-04-01

    Photometric redshift uncertainties are a major source of systematic error for ongoing and future photometric surveys. We study different sources of redshift error caused by choosing a suboptimal redshift histogram bin width and propose methods to resolve them. The selection of a too large bin width is shown to oversmooth small-scale structure of the radial distribution of galaxies. This systematic error can significantly shift cosmological parameter constraints by up to 6σ for the dark energy equation-of-state parameter w. Careful selection of bin width can reduce this systematic by a factor of up to 6 as compared with commonly used current binning approaches. We further discuss a generalized resampling method that can correct systematic and statistical errors in cosmological parameter constraints caused by uncertainties in the redshift distribution. This can be achieved without any prior assumptions about the shape of the distribution or the form of the redshift error. Our methodology allows photometric surveys to obtain unbiased cosmological parameter constraints using a minimum number of spectroscopic calibration data. For a DES-like galaxy clustering forecast, we obtain unbiased results with respect to errors caused by suboptimal histogram bin width selection, using only 5k representative spectroscopic calibration objects per tomographic redshift bin.

  8. Correcting cosmological parameter biases for all redshift surveys induced by estimating and reweighting redshift distributions

    CERN Document Server

    Rau, Markus Michael; Paech, Kerstin; Seitz, Stella

    2016-01-01

    Photometric redshift uncertainties are a major source of systematic error for ongoing and future photometric surveys. We study different sources of redshift error caused by common suboptimal binning techniques and propose methods to resolve them. The selection of a too large bin width is shown to oversmooth small scale structure of the radial distribution of galaxies. This systematic error can significantly shift cosmological parameter constraints by up to $6 \\, \\sigma$ for the dark energy equation of state parameter $w$. Careful selection of bin width can reduce this systematic by a factor of up to 6 as compared with commonly used current binning approaches. We further discuss a generalised resampling method that can correct systematic and statistical errors in cosmological parameter constraints caused by uncertainties in the redshift distribution. This can be achieved without any prior assumptions about the shape of the distribution or the form of the redshift error. Our methodology allows photometric surve...

  9. The US Geological Survey's national coal resource assessment: The results

    Science.gov (United States)

    Ruppert, L.F.; Kirschbaum, M.A.; Warwick, P.D.; Flores, R.M.; Affolter, R.H.; Hatch, J.R.

    2002-01-01

    The US Geological Survey and the State geological surveys of many coal-bearing States recently completed a new assessment of the top producing coal beds and coal zones in five major producing coal regions the Appalachian Basin, Gulf Coast, Illinois Basin, Colorado Plateau, and Northern Rocky Mountains and Great Plains. The assessments, which focused on both coal quality and quantity, utilized geographic information system technology and large databases. Over 1,600,000 million short tons of coal remain in over 60 coal beds and coal zones that were assessed. Given current economic, environmental, and technological restrictions, the majority of US coal production will occur in that portion of the assessed coal resource that is lowest in sulfur content. These resources are concentrated in parts of the central Appalachian Basin, Colorado Plateau, and the Northern Rocky Mountains. ?? Elsevier Science B.V. All rights reserved.

  10. Surveying Assessment in Experiential Learning: A Single Campus Study

    Directory of Open Access Journals (Sweden)

    Thomas Yates

    2015-12-01

    Full Text Available The purpose of this study was to determine the methods of experiential assessment in use at a Canadian university and the extent to which they are used. Exploring experiential assessment will allow identification of commonly used methods and facilitate the development of best practices of assessment in the context of experiential learning (EL at an institutional level. The origins of EL are found in the work of Dewey (1938, later modified by Kolb and Fry (1975. Experiential methods include: experiential education, service learning problem-based learning and others such as action learning, enquiry-based learning, and case studies. Faculty currently involved in EL at the participating university were invited to complete an online survey about their teaching and assessment methods. This paper will share the results and analysis of the EL inventory survey.

  11. Cosmic Shear Results from the Deep Lens Survey. II. Full Cosmological Parameter Constraints from Tomography

    Science.gov (United States)

    Jee, M. James; Tyson, J. Anthony; Hilbert, Stefan; Schneider, Michael D.; Schmidt, Samuel; Wittman, David

    2016-06-01

    We present a tomographic cosmic shear study from the Deep Lens Survey (DLS), which, providing a limiting magnitude {r}{lim}˜ 27 (5σ ), is designed as a precursor Large Synoptic Survey Telescope (LSST) survey with an emphasis on depth. Using five tomographic redshift bins, we study their auto- and cross-correlations to constrain cosmological parameters. We use a luminosity-dependent nonlinear model to account for the astrophysical systematics originating from intrinsic alignments of galaxy shapes. We find that the cosmological leverage of the DLS is among the highest among existing \\gt 10 deg2 cosmic shear surveys. Combining the DLS tomography with the 9 yr results of the Wilkinson Microwave Anisotropy Probe (WMAP9) gives {{{Ω }}}m={0.293}-0.014+0.012, {σ }8={0.833}-0.018+0.011, {H}0={68.6}-1.2+1.4 {\\text{km s}}-1 {{{Mpc}}}-1, and {{{Ω }}}b=0.0475+/- 0.0012 for ΛCDM, reducing the uncertainties of the WMAP9-only constraints by ˜50%. When we do not assume flatness for ΛCDM, we obtain the curvature constraint {{{Ω }}}k=-{0.010}-0.015+0.013 from the DLS+WMAP9 combination, which, however, is not well constrained when WMAP9 is used alone. The dark energy equation-of-state parameter w is tightly constrained when baryonic acoustic oscillation (BAO) data are added, yielding w=-{1.02}-0.09+0.10 with the DLS+WMAP9+BAO joint probe. The addition of supernova constraints further tightens the parameter to w=-1.03+/- 0.03. Our joint constraints are fully consistent with the final Planck results and also with the predictions of a ΛCDM universe.

  12. Survey and Assessment of Land Ecological Quality in Cixi City

    Institute of Scientific and Technical Information of China (English)

    Junbao; LIU; Zhiyuan; CHEN; Weifeng; PAN; Shaojuan; XIE

    2013-01-01

    Soil,atmosphere,water and quality of agricultural product constitute the content of land ecological quality.Cixi City,through survey pilot project of basic farmland quality,carried out high precision soil geochemical survey and survey of agricultural products,irrigation water and air quality,and established ecological quality evaluation model of land.Based on the evaluation of soil geochemical quality,we conducted comprehensive quality assessment of atmosphere,water,agricultural products,and assessed the ecological quality of agricultural land in Cixi City.The evaluation results show that the ecological quality of most agricultural land in Cixi City is excellent,and there is ecological risk only in some local areas such as urban periphery.The experimental results provide demonstration and basis for the fine management of basic farmland and ecological protection.

  13. Effectiveness, Teaching, and Assessments: Survey Evidence from Finance Courses

    Science.gov (United States)

    Lai, Ming Ming; Kwan, Jing Hui; Kadir, Hazlina Abdul; Abdullah, Mahdhir; Yap, Voon Choong

    2010-01-01

    The present article examines the effectiveness, teaching, assessment methods, and the importance of finance concepts in three undergraduate finance courses in a private university in Malaysia. Approximately 224 undergraduates (finance majors) were surveyed and demonstrated positive attitudes toward the effectiveness of the finance subjects. The…

  14. Assessing competence: The European survey on aging protocol (ESAP)

    NARCIS (Netherlands)

    Fernandez-Ballesteros, R.; Zamarron, M.D.; Rudinger, G.; Schroots, J.J.F.

    2004-01-01

    Objectives: The main goal of this research project was to translate and adapt the European Survey on Ageing Protocol (ESAP) to 7 European countries/cultures. This article presents preliminary results from the ESAP, the basic assessment instrument of EXCELSA (European Longitudinal Study of Aging). Me

  15. Effectiveness, Teaching, and Assessments: Survey Evidence from Finance Courses

    Science.gov (United States)

    Lai, Ming Ming; Kwan, Jing Hui; Kadir, Hazlina Abdul; Abdullah, Mahdhir; Yap, Voon Choong

    2010-01-01

    The present article examines the effectiveness, teaching, assessment methods, and the importance of finance concepts in three undergraduate finance courses in a private university in Malaysia. Approximately 224 undergraduates (finance majors) were surveyed and demonstrated positive attitudes toward the effectiveness of the finance subjects. The…

  16. Assessing competence: The European survey on aging protocol (ESAP)

    NARCIS (Netherlands)

    Fernandez-Ballesteros, R.; Zamarron, M.D.; Rudinger, G.; Schroots, J.J.F.

    2004-01-01

    Objectives: The main goal of this research project was to translate and adapt the European Survey on Ageing Protocol (ESAP) to 7 European countries/cultures. This article presents preliminary results from the ESAP, the basic assessment instrument of EXCELSA (European Longitudinal Study of Aging). Me

  17. Survey of Prior Learning Assessment Practices in Pharmacy Education.

    Science.gov (United States)

    Fjortoft, Nancy F.; Zgarrick, David P.

    2001-01-01

    Surveyed nontraditional Pharm.D (NTPD) program directors to determine use of prior learning assessment (PLA). Eighty-four percent of respondents reported using PLA for one or more purposes, including the admissions process and awarding of advanced standing for didactic and experiential courses. Transcript review, faculty-developed exams, and…

  18. Building Assessment Survey and Evaluation Study Summarized Data - HVAC Characteristics

    Science.gov (United States)

    In the Building Assessment Survey and Evaluation (BASE) Study Information on the characteristics of the heating, ventilation, and air conditioning (HVAC) system(s) in the entire BASE building including types of ventilation, equipment configurations, and operation and maintenance issues was acquired by examining the building plans, conducting a building walk-through, and speaking with the building owner, manager, and/or operator.

  19. Morphological parameters of a Spitzer survey of stellar structure in galaxies

    Energy Technology Data Exchange (ETDEWEB)

    Holwerda, B. W. [ESTEC, Keplerlaan 1, 2200-AG Noordwijk (Netherlands); Muñoz-Mateos, J.-C.; Sheth, K.; Kim, T. [National Radio Astronomfy Observatory/NAASC, 520 Edgemont Road, Charlottesville, VA 22903 (United States); Comerón, S.; Laurikainen, E.; Salo, H.; Laine, J. [Astronomy Division, Department of Physical Sciences, FI-90014 University of Oulu, P.O. Box 3000, Oulu (Finland); Meidt, S.; Mizusawa, T. [Max-Planck-Institut für Astronomie/Königstühl 17, D-69117 Heidelberg (Germany); Laine, S. [Spitzer Science Center, Mail Stop 220-6, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Hinz, J. L.; Zaritsky, D. [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Regan, M. W. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Gil de Paz, A. [Departamento de Astrofísica, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Menéndez-Delmestre, K.; Seibert, M.; Ho, L. C. [The Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Gadotti, D. A. [European Southern Observatory, Casilla 19001, Santiago 19 (Chile); Erroz-Ferrer, S., E-mail: benne.holwerda@esa.int, E-mail: benne.holwerda@gmail.com [Instituto de Astrofísica de Canarias, Vía Láctea s/n E-38205 La Laguna (Spain); and others

    2014-01-20

    The morphology of galaxies can be quantified to some degree using a set of scale-invariant parameters. Concentration (C), asymmetry (A), smoothness (S), the Gini index (G), the relative contribution of the brightest pixels to the second-order moment of the flux (M {sub 20}), ellipticity (E), and the Gini index of the second-order moment (G{sub M} ) have all been applied to morphologically classify galaxies at various wavelengths. Here, we present a catalog of these parameters for the Spitzer Survey of stellar structure in Galaxies, a volume-limited, near-infrared (NIR) imaging survey of nearby galaxies using the 3.6 and 4.5 μm channels of the Infrared Array Camera on board the Spitzer Space Telescope. Our goal is to provide a reference catalog of NIR quantified morphology for high-redshift studies and galaxy evolution models with enough detail to resolve stellar mass morphology. We explore where normal, non-interacting galaxies—those typically found on the Hubble tuning fork—lie in this parameter space and show that there is a tight relation between concentration (C {sub 82}) and M {sub 20} for normal galaxies. M {sub 20} can be used to classify galaxies into earlier and later types (i.e., to separate spirals from irregulars). Several criteria using these parameters exist to select systems with a disturbed morphology, i.e., those that appear to be undergoing a tidal interaction. We examine the applicability of these criteria to Spitzer NIR imaging. We find that four relations, based on the parameters A and S, G and M {sub 20}, G{sub M} , C, and M {sub 20}, respectively, select outliers in morphological parameter space, but each selects different subsets of galaxies. Two criteria (G{sub M} > 0.6, G > –0.115 × M {sub 20} + 0.384) seem most appropriate to identify possible mergers and the merger fraction in NIR surveys. We find no strong relation between lopsidedness and most of these morphological parameters, except for a weak dependence of lopsidedness on

  20. Violence Risk Assessment Practices in Denmark: A Multidisciplinary National Survey

    Directory of Open Access Journals (Sweden)

    Nielsen Louise Hjort

    2015-12-01

    Full Text Available With a quadrupling of forensic psychiatric patients in Denmark over the past 20 years, focus on violence risk assessment practices across the country has increased. However, information is lacking regarding Danish risk assessment practice across professional disciplines and clinical settings; little is known about how violence risk assessments are conducted, which instruments are used for what purposes, and how mental health professionals rate their utility and costs. As part of a global survey exploring the application of violence risk assessment across 44 countries, the current study investigated Danish practice across several professional disciplines and settings in which forensic and high-risk mental health patients are assessed and treated. In total, 125 mental health professionals across the country completed the survey. The five instruments that respondents reported most commonly using for risk assessment, risk management planning and risk monitoring were Broset, HCR-20, the START, the PCL-R, and the PCL:SV. Whereas the HCR-20 was rated highest in usefulness for risk assessment, the START was rated most useful for risk management and risk monitoring. No significant differences in utility were observed across professional groups. Unstructured clinical judgments were reported to be faster but more expensive to conduct than using a risk assessment instrument. Implications for clinical practice are discussed.

  1. Assessment of Some Immune Parameters in Occupationally Exposed Nuclear Power Plant Workers

    Science.gov (United States)

    Penkova, Kalina Ivanova; Rupova, Ivanka Tankova; Panova, Delyana Yonkova; Djounova, Jana Nikolaeva

    2015-01-01

    A 10-year survey of immune status of nuclear power plant (NPP) workers was assessed by cellular and humoral immune parameters. The cumulative doses of NPP workers were in the range of 0.06 to 766.36 mSv. The results did not show significant deviations in the studied parameters of cellular and humoral immunity, but a tendency of elevated values in CD3+4+ helper inducers cells, especially its CD4+62L+ subpopulation, regulatory CD4+25+ cells, CD8+28+ cytotoxic subpopulation, and immunoglobulin M, was established. The observed trend of the above-mentioned parameters could be interpreted by assumption that while the adaptation processes are dominated with low prevalence of T-helper (Th) 1 immune response to cumulative doses less than 100 mSv, a switch to Th-2 response occurred at doses above 100 mSv. The impact of a number of other confounding factors on the immune system does not allow definitive conclusions about the direct radiation-induced changes in immune parameters. PMID:26740807

  2. Assessment of Some Immune Parameters in Occupationally Exposed Nuclear Power Plant Workers

    Directory of Open Access Journals (Sweden)

    Ilona Mihaylova Gyuleva

    2015-11-01

    Full Text Available A 10-year survey of immune status of nuclear power plant (NPP workers was assessed by cellular and humoral immune parameters. The cumulative doses of NPP workers were in the range of 0.06 to 766.36 mSv. The results did not show significant deviations in the studied parameters of cellular and humoral immunity, but a tendency of elevated values in CD3+4+ helper inducers cells, especially its CD4+62L+ subpopulation, regulatory CD4+25+ cells, CD8+28+ cytotoxic subpopulation, and immunoglobulin M, was established. The observed trend of the above-mentioned parameters could be interpreted by assumption that while the adaptation processes are dominated with low prevalence of T-helper (Th 1 immune response to cumulative doses less than 100 mSv, a switch to Th-2 response occurred at doses above 100 mSv. The impact of a number of other confounding factors on the immune system does not allow definitive conclusions about the direct radiation-induced changes in immune parameters.

  3. Morphological Parameters of Spitzer Survey of Stellar Structure in Galaxies (S4G)

    CERN Document Server

    Holwerda, B W; Comeron, S; Meidt, S; Sheth, K; Laine, S; Hinz, J L; Regan, M W; Gil-de-Paz, A; Menendez-Delmestre, K; Seibert, M; Kim, T; Mizusawa, T; Laurikainen, E; Salo, H; Laine, J; Gadotti, D A; Zaritsky, D; Erroz-Ferrer, S; Ho, L C; Knapen, J H; Athanassoula, E; Bosma, A; Pirzkal, N

    2013-01-01

    The morphology of galaxies can be quantified to some degree using a set of scale-invariant parameters. Concentration (C), Asymmetry (A), Smoothness (S), the Gini index (G), relative contribution of the brightest pixels to the second order moment of the flux (M20), ellipticity (E), and the Gini index of the second order moment (GM) have all been applied to morphologically classify galaxies at various wavelengths. Here we present a catalog of these parameters for the Spitzer Survey of Stellar Structure in Galaxies (S4G), a volume-limited near-infrared imaging survey of nearby galaxies using the 3.6 and 4.5 micron channels of the IRAC camera. Our goal is to provide a reference catalog of near-infrared quantified morphology for high-redshift studies and galaxy evolution models with enough detail to resolve stellar mass morphology. We explore where normal, non-interacting galaxies -those typically found on the Hubble tuning fork- lie in this parameter space and show that there is a tight relation between Concentra...

  4. The Advanced Camera for Surveys General Catalog: Structural Parameters for Approximately Half a Million Galaxies

    CERN Document Server

    Griffith, Roger L; Newman, Jeffrey A; Moustakas, Leonidas A; Stern, Daniel; Comerford, Julia M; Davis, Marc; Lotz, Jennifer M; Barden, Marco; Conselice, Christopher J; Capak, Peter L; Faber, S M; Kirkpatrick, J Davy; Koekemoer, Anton M; Koo, David C; Noeske, Kai G; Scoville, Nick; Sheth, Kartik; Shopbell, Patrick; Willmer, Christopher N A; Weiner, Benjamin

    2012-01-01

    We present the Advanced Camera for Surveys General Catalog (ACS-GC), a photometric and morphological database using publicly available data obtained with the Advanced Camera for Surveys (ACS) instrument on the Hubble Space Telescope. The goal of the ACS-GC database is to provide a large statistical sample of galaxies with reliable structural and distance measurements to probe the evolution of galaxies over a wide range of look-back times. The ACS-GC includes over 490,000 astronomical sources (stars + galaxies) derived from the AEGIS, COSMOS, GEMS, and GOODS surveys. Galapagos was used to construct photometric (SExtractor) and morphological (Galfit) catalogs. The analysis assumes a single S\\'ersic model for each object to derive quantitative structural parameters. We include publicly available redshifts from the DEEP2, COMBO-17, TKRS, PEARS, ACES, CFHTLS,and zCOSMOS surveys to supply redshifts (spectroscopic and photometric) for a considerable fraction (~71%) of the imaging sample. The ACS-GC includes color po...

  5. Radiological Risk Assessment and Survey of Radioactive Contamination for Foodstuffs

    Energy Technology Data Exchange (ETDEWEB)

    Lee, W.R.; Lee, C.W.; Choi, K.S.; and others

    2007-11-15

    After the Chernobyl nuclear accident in 1986, a radiological dose assessment and a survey of a radioactive contamination for foodstuffs have been investigated by many countries such as EU, Japan, USA. In the case of Japan which is similar to our country for the imported regions of foodstuffs, there were some instances of the excess for regulation on the maximum permitted levels of radioactive contamination among some imported foodstuffs. Concerns about the radioactive contamination of foodstuffs are increased because of the recently special situation (Nuclear test of North Korea). The purpose of this study is a radiological dose assessment and a survey of a radioactive contamination for foodstuffs in order to reduce the probability of intake of contaminated foodstuffs. Analytical results of the collected samples are below MDA. In this project, the model of radiological dose assessment via the food chain was also developed and radiological dose assessment was conducted based on surveys results of a radioactive contamination for foodstuffs in the Korean open markets since 2002. The results of radiological dose assessment are far below international reference level. It shows that public radiation exposure via food chain is well controlled within the international guide level. However, the radioactive contamination research of imported foodstuffs should be continuous considering the special situation(nuclear test of North Korea). These results are used to manage the radioactive contamination of the imported foodstuffs and also amend the regulation on the maximum permitted levels of radioactive contamination of foodstuffs.

  6. Calculation and Updating of Reliability Parameters in Probabilistic Safety Assessment

    Science.gov (United States)

    Zubair, Muhammad; Zhang, Zhijian; Khan, Salah Ud Din

    2011-02-01

    The internal events of nuclear power plant are complex and include equipment maintenance, equipment damage etc. These events will affect the probability of the current risk level of the system as well as the reliability of the equipment parameter values so such kind of events will serve as an important basis for systematic analysis and calculation. This paper presents a method for reliability parameters calculation and their updating. The method is based on binomial likelihood function and its conjugate beta distribution. For update parameters Bayes' theorem has been selected. To implement proposed method a computer base program is designed which provide help to estimate reliability parameters.

  7. Direct assessment of anchovy by the PELGAS05 acoustic survey

    OpenAIRE

    Masse, Jacques; Beillois, Pierre; Duhamel, Erwan

    2005-01-01

    An acoustic survey was carried out in the bay of Biscay from May 3rd to June 1st on board the French research vessel Thalassa. The objective of PELGAS05 survey was to study the abundance and distribution of pelagic fish in the Bay of Biscay. The target species were mainly anchovy and sardine and were considered in a multi-specific context. The results have to be used during ICES working groups in charge of the assessment of sardine, anchovy, mackerel and horse mackerel and in the frame of t...

  8. Study and survey of assembling parameters to a radioactive source production laboratory used to verify equipment

    Energy Technology Data Exchange (ETDEWEB)

    Gauglitz, Erica; Nagatomy, Helio Rissei; Moura, Eduardo S.; Zeituni, Carlos Alberto; Hilario, Katia A. Fonseca; Rostelato, Maria Elisa C.M., E-mail: egauglitz@ipen.b, E-mail: elisaros@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Karam Junior, Dib, E-mail: dib.karan@usp.b [Universidade de Sao Paulo (USP), SP (Brazil). Escola de Artes, Ciencias e Humanidades

    2009-07-01

    This paper presents the survey of parameters for the installation and implementation of a laboratory for radioactive sources production at immobilized resin. These sources are used in nuclear medicine for verification of dose calibrators, as the standard guidelines of the National Commission of Nuclear CNEN-NE-3.05 'Radioprotection and safety requirements for nuclear medicine services.' The radioisotopes used for this purpose are: Co-57, Cs-137 and Ba-133, with activities of 185 MBq, 9.3 MBq and 5.4 MBq, respectively. The parameters for the assembly of the laboratory shall be defined according to guidelines that guide the deployment of radiochemical laboratories and standards of the National Commission of Nuclear Energy. (author)

  9. Technology assessments in transportation: survey of recent literature

    Energy Technology Data Exchange (ETDEWEB)

    LaBelle, S.J.

    1980-03-01

    A survey and an evaluation of recent studies of transportation systems done in a technology-assessment framework were undertaken as the basis for a detailed statement of work for a US Department of Energy technology assessment of transportation energy-conservation strategies. Several bibliographies were searched and numerous professionals in the field of technology assessment were contacted regarding current work. Detailed abstracts were prepared for studies judged to be sufficiently broad in coverage of impacts assessed, yet detailed in coverage of all or part of the nation's transportation systems. Some studies were rich in data but not comprehensive in their analytical approach; brief abstracts were prepared for these. An explanation of the criteria used to screen the studies, as well as abstracts of 37 reports, are provided in this compendium of transportation-technology-assessment literature.

  10. An Analysis Report of 2014 CALA Self-Assessment Survey

    Directory of Open Access Journals (Sweden)

    Jian Anna Xiong

    2016-06-01

    Full Text Available On the occasion of CALA’s 40th anniversary in 2014, the 2013 Board of Directors appointed a Self-Assessment Task Force to conduct an assessment survey with special focuses on members’ awareness of CALA’s organizational structure and policies, its services to members, the extent of participation in events sponsored by CALA, and the level of satisfaction with CALA leadership. Although only one-fifth of the active members responded to the survey, the answers and feedback have identified areas for organizational improvement and have shown how active members view the current state of CALA. Some essential findings from the survey include: 1 the growth of overseas membership as a demographic trend, 2 a need to recruit student members, 3 a high percentage of CALA members not aware of CALA’s Mission/Vision/Goal, 4 conflicting data on CALA’s leadership, 5 discovery of low ratings (10-30% of respondents on eleven out of twelve rating questions, and 6 strong support for CALA as a representative organization of Chinese American librarians in North America. The findings of the survey will serve as a valuable reference for future strategic planning and for carrying out CALA’s long term goals.

  11. Peculiar Velocities into the Next Generation: Cosmological Parameters From Large Surveys without Bias from Nonlinear Structure

    CERN Document Server

    Abate, Alexandra; Teodoro, Luis F A; Warren, Michael S; Hendry, Martin

    2008-01-01

    We investigate methods to best estimate the normalisation of the mass density fluctuation power spectrum (sigma_8) using peculiar velocity data from a survey like the Six degree Field Galaxy Velocity Survey (6dFGSv). We focus on two potential problems (i) biases from nonlinear growth of structure and (ii) the large number of velocities in the survey. Simulations of LambdaCDM-like models are used to test the methods. We calculate the likelihood from a full covariance matrix of velocities averaged in grid cells. This simultaneously reduces the number of data points and smooths out nonlinearities which tend to dominate on small scales. We show how the averaging can be taken into account in the predictions in a practical way, and show the effect of the choice of cell size. We find that a cell size can be chosen that significantly reduces the nonlinearities without significantly increasing the error bars on cosmological parameters. We compare our results with those from a principal components analysis following Wa...

  12. The Fundamental Stellar Parameters of FGK Stars in the SEEDS Survey

    Science.gov (United States)

    Rich, Evan; Wisniewski, John P.; SEEDS Team

    2017-01-01

    Large exoplanet surveys have successfully detected thousands of exoplanets to-date. Utilizing these detections and non-detections to constrain our understanding of the formation and evolution of planetary systems also requires a detailed understanding of the basic properties of their host stars. We have determined the basic stellar properties of F, K, and G stars in the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) survey from echelle spectra taken at the Apache Point Observatory's 3.5m telescope. Using ROBOSPECT to extract line fluxes and TGVIT to calculate the fundamental parameters, we have computed Teff, log(g), vt, [Fe/H], chromospheric activity, lithium abundance, and the age for our sample. Our methodology was calibrated against previously published results for a portion of our sample. The future meta-analysis of the results of the SEEDS survey will utilize our results to constrain the occurrence of detected co-moving companions with the properties of their host stars.

  13. Recommended parameters for quality assessment in early intervention

    Directory of Open Access Journals (Sweden)

    Ana Maria Serrano

    2011-10-01

    Full Text Available This article aims to do a synthesized review of theoretical and empirical principles underlying the practices currently recommended for assessment in early intervention. Describes the major paradigm shifts in Early Intervention in the last decades, and how they are reflected in assessment processes, and presents a brief description of the evidence-based characteristics of assessment in Early Intervention. It also presents some tools and assessment procedures that are consistent with the practices described within the research literature, as more responsive to the needs, concerns and priorities of children and their families.

  14. Food Consumption and Handling Survey for Quantitative Microbiological Consumer Phase Risk Assessments.

    Science.gov (United States)

    Chardon, Jurgen; Swart, Arno

    2016-07-01

    In the consumer phase of a typical quantitative microbiological risk assessment (QMRA), mathematical equations identify data gaps. To acquire useful data we designed a food consumption and food handling survey (2,226 respondents) for QMRA applications that is especially aimed at obtaining quantitative data. For a broad spectrum of food products, the survey covered the following topics: processing status at retail, consumer storage, preparation, and consumption. Questions were designed to facilitate distribution fitting. In the statistical analysis, special attention was given to the selection of the most adequate distribution to describe the data. Bootstrap procedures were used to describe uncertainty. The final result was a coherent quantitative consumer phase food survey and parameter estimates for food handling and consumption practices in The Netherlands, including variation over individuals and uncertainty estimates.

  15. Use of colour parameters for roasted coffee assessment

    Directory of Open Access Journals (Sweden)

    Natalina Cavaco Bicho

    2012-09-01

    Full Text Available Fast and non-destructive indicators were evaluated as tools to measure the technological quality of Arabica and Robusta coffee. Accordingly, considering the roasting intensity in highly valuable commercial samples, volume, mass, apparent density, moisture, total ash, ash insoluble in hydrochloric acid, and ether extract were characterized. The chromatic parameters L*, C*, Hº were measured using illuminants D65 and C. It was found that in roasted coffee beans, the parameters L*, C*, Hº, and coordinate b* had an antagonist interaction due to an increase in the roasting intensity, whereas after milling, only L* and Hº decreased progressively. Considering that the parameters L* and Hº followed similar patterns using both illuminants, D65 and C, it can be concluded that they are appropriate to evaluate coffee colour changes during roasting, enabling a relationship with coffee quality.

  16. The HST/ACS Coma Cluster Survey : III. Structural parameters of galaxies using single Sersic fits star

    NARCIS (Netherlands)

    Hoyos, Carlos; den Brok, Mark; Verdoes Kleijn, Gijs; Carter, David; Balcells, Marc; Guzmán, Rafael; Peletier, Reynier; Ferguson, Henry C.; Goudfrooij, Paul; Graham, Alister W.; Hammer, Derek; Karick, Arna M.; Lucey, John R.; Matković, Ana; Merritt, David; Mouhcine, Mustapha; Valentijn, Edwin

    2011-01-01

    We present a catalogue of structural parameters for 8814 galaxies in the 25 fields of the Hubble Space Telescope/ACS Coma Treasury Survey. Parameters from Sersic fits to the two-dimensional surface brightness distributions are given for all galaxies from our published Coma photometric catalogue with

  17. The HST/ACS Coma Cluster Survey - III. Structural parameters of galaxies using single Sérsic fits

    NARCIS (Netherlands)

    Hoyos, Carlos; den Brok, Mark; Verdoes Kleijn, Gijs; Carter, David; Balcells, Marc; Guzmán, Rafael; Peletier, Reynier; Ferguson, Henry C.; Goudfrooij, Paul; Graham, Alister W.; Hammer, Derek; Karick, Arna M.; Lucey, John R.; Matković, Ana; Merritt, David; Mouhcine, Mustapha; Valentijn, Edwin

    2011-01-01

    We present a catalogue of structural parameters for 8814 galaxies in the 25 fields of the Hubble Space Telescope/ACS Coma Treasury Survey. Parameters from Sérsic fits to the two-dimensional surface brightness distributions are given for all galaxies from our published Coma photometric catalogue with

  18. Parameter Survey of Thermally Highly Loaded, Porous and Cooled Multi-Layer Systems for Turbine Blades

    Institute of Scientific and Technical Information of China (English)

    Peng Shan; Dieter Bohn; Jing Ren; N.Surken

    2007-01-01

    This study is an advanced investigation for the cooling of high temperature turbine vanes and blades. The efficient heat exchanging near the surface of a blade may be achieved by forcing a cooling air flow emitting out of a thin layer of the porous metal which is pasted on the structural high strength metal. The contents include the consideration on the computational model of heat transfer through a layer of porous material, the concrete modeling and the analysis of the model, the numerical survey of key parameters for both the two-layer porous materials and the heat transfer fluid flow passing through the model channels. The results revealed that the constructed system is reasonable. Proposed an evaluation formula for the porous material heat transfer efficiency.

  19. Assessment of hemodynamic parameters of uterus during physiological pregnancy

    OpenAIRE

    Chekhonatskaya M.L.; Petrosyan N.O.

    2015-01-01

    The aim of the article is to analysis of the hemodynamic parameters of the uterus and cervix during the second and third trimesters of pregnancy. Material and methods. It was conducted dynamic ultrasound in 240 women with physiological course for singleton pregnancies in the period from 12 weeks of gestation until term labor. Results. For the second trimester of pregnancy redistribution of total uterine blood flow in the direction of increasing blood flow in more of the body than the cervix h...

  20. Assessing Nutritional Parameters of Brown Bear Diets among Ecosystems Gives Insight into Differences among Populations

    National Research Council Canada - National Science Library

    López-Alfaro, Claudia; Coogan, Sean C P; Robbins, Charles T; Fortin, Jennifer K; Nielsen, Scott E

    2015-01-01

    ... or nutritional composition of the complete diet. Here, we developed a dynamic model integrating food habits and nutritional information to assess nutritional parameters of brown bear (Ursus arctos...

  1. Assessing physics learning identity: Survey development and validation

    Science.gov (United States)

    Li, Sissi L.; Demaree, Dedra

    2012-02-01

    Innovative curricula aim to improve content knowledge and the goal of helping students develop practices and skills of authentic scientist through active engagement learning. To students, these classroom practices often seem very different from their previous learning experiences in terms of behavioral expectations, learning attitude, and what learning means. We propose that productive participation in these learning environments require students to modify their identity as learners in addition to refining their science conceptual understanding. In order to measure changes in learning identity, we developed a 49-item survey to assess students' 1) expectations of student and teacher roles, 2) self efficacy towards skills supported in the Investigative Science Learning Environment (ISLE) and 3) attitudes towards social learning. Using principle components exploratory factor analysis, we have established two reliable factors with subscales that measure these student characteristics. This paper presents the survey development, validation and pilot study results.

  2. Assessment of mechanical ventilation parameters on respiratory mechanics.

    Science.gov (United States)

    Pidaparti, Ramana M; Koombua, Kittisak; Ward, Kevin R

    2012-01-01

    Better understanding of airway mechanics is very important in order to avoid lung injuries for patients undergoing mechanical ventilation for treatment of respiratory problems in intensive-care medicine, as well as pulmonary medicine. Mechanical ventilation depends on several parameters, all of which affect the patient outcome. As there are no systematic numerical investigations of the role of mechanical ventilation parameters on airway mechanics, the objective of this study was to investigate the role of mechanical ventilation parameters on airway mechanics using coupled fluid-solid computational analysis. For the airway geometry of 3 to 5 generations considered, the simulation results showed that airflow velocity increased with increasing airflow rate. Airway pressure increased with increasing airflow rate, tidal volume and positive end-expiratory pressure (PEEP). Airway displacement and airway strains increased with increasing airflow rate, tidal volume and PEEP form mechanical ventilation. Among various waveforms considered, sine waveform provided the highest airflow velocity and airway pressure while descending waveform provided the lowest airway pressure, airway displacement and airway strains. These results combined with optimization suggest that it is possible to obtain a set of mechanical ventilation strategies to avoid lung injuries in patients.

  3. Constraining the Galactic structure parameters with the XSTPS-GAC and SDSS photometric surveys

    CERN Document Server

    Chen, Bingqiu; Yuan, Haibo; Robin, Annie C; Huang, Yang; Xiang, Maosheng; Wang, Chun; Ren, Juanjuan; Tian, Zhijia; Zhang, Huawei

    2016-01-01

    Photometric data from the Xuyi Schmidt Telescope Photometric Survey of the Galactic Anticentre (XSTPS-GAC) and the Sloan Digital Sky Survey (SDSS) are used to derive the global structure parameters of the smooth components of the Milky Way. The data, which cover nearly 11,000 deg$^2$ sky area and the full range of Galactic latitude, allow us to construct a globally representative Galactic model. The number density distribution of Galactic halo stars is fitted with an oblate spheroid that decays by power law. The best-fit yields an axis ratio and a power law index $\\kappa=0.65$ and $p=2.79$, respectively. The $r$-band differential star counts of three dwarf samples are then fitted with a Galactic model. The best-fit model yielded by a Markov Chain Monte Carlo analysis has thin and thick disk scale heights and lengths of $H_{1}=$ 322\\,pc and $L_{1}=$2343\\,pc, $H_{2}=$794\\,pc and $L_{2}=$3638\\,pc, a local thick-to-thin disk density ratio of $f_2=$11\\,per\\,cent, and a local density ratio of the oblate halo to the...

  4. An international survey of polypectomy training and assessment

    Science.gov (United States)

    Patel, K.; Rajendran, A.; Faiz, O.; Rutter, M. D.; Rutter, C.; Jover, R.; Koutroubakis, I.; Januszewicz, W.; Ferlitsch, M.; Dekker, E.; MacIntosh, D.; Ng, S. C.; Kitiyakara, T.; Pohl, H.; Thomas-Gibson, S.

    2017-01-01

    Background and study aims Colonic polypectomy is acknowledged to be a technically challenging part of colonoscopy. Training in polypectomy is recognized to be often inconsistent. This study aimed to ascertain worldwide practice in polypectomy training. Patients and methods An electronic survey was distributed to endoscopic trainees and trainers in 19 countries asking about their experiences of receiving and delivering training. Participants were also asked about whether formal polypectomy training guidance existed in their country. Results Data were obtained from 610 colonoscopists. Of these responses, 348 (57.0 %) were from trainers and 262 (43.0 %) from trainees; 6.6 % of trainers assessed competency once per year or less often. Just over half (53.1 %) of trainees had ever had their polypectomy technique formally assessed by any trainer. Approximately half the trainees surveyed (51.1 %) stated that the principles of polypectomy had only ever been taught to them intermittently. Of those trainees with the most colonoscopy experience, who had performed over 500 procedures, 48.2 % had had training on removing large polyps of over 10 mm; 46.2 % (121 respondents) of trainees surveyed held no record of the polypectomies they had performed. Only four of the 19 countries surveyed had specific guidelines on polypectomy training. Conclusions A significant number of competent colonoscopists have never been taught how to perform polypectomy. Training guidelines worldwide generally give little direction as to how trainees should acquire polypectomy skills. The learning curve for polypectomy needs to be defined to provide reliable guidance on how to train colonoscopists in this skill. PMID:28299354

  5. A Survey of Compact Star Clusters in the South-West Field of the M31 Disk. Structural Parameters

    CERN Document Server

    Sableviciute, I; Kodaira, K; Narbutis, D; Stonkute, R; Bridzius, A

    2006-01-01

    We present structural parameters for 51 compact star clusters from the survey of star clusters conducted in the South-West field of the M31 disk by Kodaira et al. (2004). Structural parameters of the clusters were derived by fitting the 2-D King and EFF (Elson, Fall and Freeman 1987) models to the V-band cluster images. Structural parameters derived for two M31 clusters, which are in common with the study based on the HST data (Barmby et al. 2002), are consistent with earlier determination. The M31 star cluster structural parameters in general are compatible with the corresponding Milky Way galaxy and Magellanic Clouds cluster parameters.

  6. Education in Nephrology Fellowship: A Survey-Based Needs Assessment.

    Science.gov (United States)

    Rope, Robert W; Pivert, Kurtis A; Parker, Mark G; Sozio, Stephen M; Merell, Sylvia Bereknyei

    2017-07-01

    Educational needs assessments for nephrology fellowship training are limited. This study assessed fellows' perceptions of current educational needs and interest in novel modalities that may improve their educational experience and quantified educational resources used by programs and fellows. We distributed a seven-question electronic survey to all United States-based fellows receiving complimentary American Society of Nephrology (ASN) membership at the end of the 2015-2016 academic year in conjunction with the ASN Nephrology Fellows Survey. One third (320 of 863; 37%) of fellows in Accreditation Council for Graduate Medical Education-accredited positions responded. Most respondents rated overall quality of teaching in fellowship as either "good" (37%) or "excellent" (44%), and most (55%) second-year fellows felt "fully prepared" for independent practice. Common educational resources used by fellows included UpToDate, Journal of the American Society of Nephrology/Clinical Journal of the American Society of Nephrology, and Nephrology Self-Assessment Program; others-including ASN's online curricula-were used less often. Fellows indicated interest in additional instruction in several core topics, including home dialysis modalities, ultrasonography, and pathology. Respondents strongly supported interventions to improve pathology instruction and increase time for physiology and clinical review. In conclusion, current nephrology fellows perceive several gaps in training. Innovation in education and training is needed to better prepare future nephrologists for the growing challenges of kidney care. Copyright © 2017 by the American Society of Nephrology.

  7. assessment of some physicochemical parameters levels in sachet ...

    African Journals Online (AJOL)

    Water And Its Effects On Human Health In Katsina Urban Area, Nigeria. ASSESSMENT OF ... permissible limit set by the WHO in drinking water. It is noted that, the treatment process in Sachet water in the study area is .... safest for human consumption. However ..... concentrations lead to increasing risks of skeletal fluorosis ...

  8. Parameters of Higher School Internationalization and Quality Assessment

    Science.gov (United States)

    Juknyte-Petreikiene, Inga

    2006-01-01

    The article presents the analysis of higher education internationalization, its conceptions and forms of manifestation. It investigates the ways and means of higher education internationalization, the diversity of higher school internationalization motives, the issues of higher education internationalization quality assessment, presenting an…

  9. What Campuses Assess When They Assess Their Learning Community Programs: Selected Findings from a National Survey of Learning Community Programs

    Science.gov (United States)

    Lardner, Emily

    2014-01-01

    In spring 2013, the Washington Center administered a national survey to find what campuses assessed when they assessed their learning community programs, how they assessed those outcomes, and what they did with the results. Sixty-six campuses responded to the survey. Most campuses assess at least one measure of student success (pass rates, course…

  10. The Faculty Self-Reported Assessment Survey (FRAS): differentiating faculty knowledge and experience in assessment.

    Science.gov (United States)

    Hanauer, David I; Bauerle, Cynthia

    2015-01-01

    Science, technology, engineering, and mathematics education reform efforts have called for widespread adoption of evidence-based teaching in which faculty members attend to student outcomes through assessment practice. Awareness about the importance of assessment has illuminated the need to understand what faculty members know and how they engage with assessment knowledge and practice. The Faculty Self-Reported Assessment Survey (FRAS) is a new instrument for evaluating science faculty assessment knowledge and experience. Instrument validation was composed of two distinct studies: an empirical evaluation of the psychometric properties of the FRAS and a comparative known-groups validation to explore the ability of the FRAS to differentiate levels of faculty assessment experience. The FRAS was found to be highly reliable (α = 0.96). The dimensionality of the instrument enabled distinction of assessment knowledge into categories of program design, instrumentation, and validation. In the known-groups validation, the FRAS distinguished between faculty groups with differing levels of assessment experience. Faculty members with formal assessment experience self-reported higher levels of familiarity with assessment terms, higher frequencies of assessment activity, increased confidence in conducting assessment, and more positive attitudes toward assessment than faculty members who were novices in assessment. These results suggest that the FRAS can reliably and validly differentiate levels of expertise in faculty knowledge of assessment.

  11. Assessment of hemodynamic parameters of uterus during physiological pregnancy

    Directory of Open Access Journals (Sweden)

    Chekhonatskaya M.L.

    2015-06-01

    Full Text Available The aim of the article is to analysis of the hemodynamic parameters of the uterus and cervix during the second and third trimesters of pregnancy. Material and methods. It was conducted dynamic ultrasound in 240 women with physiological course for singleton pregnancies in the period from 12 weeks of gestation until term labor. Results. For the second trimester of pregnancy redistribution of total uterine blood flow in the direction of increasing blood flow in more of the body than the cervix has been considered to be typical. From the third trimester of pregnancy until term labor a significant increase of blood supply to the cervix has been found; there has been a tendency to increase the capacity of the vascular channel and the reduction in peripheral resistance vessels of cervix. Conclusions. Early detection of disorders of uterine and cervical hemodynamics allows to predict the occurrence of various pathological conditions.

  12. CRED REA Benthic Parameter Assessment at Kingman Reef, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Point-count surveys at 50-cm intervals were conducted along 2 consecutively placed, 25m line transect lines, as part of Rapid Ecological Assessments conducted at 11...

  13. CRED REA Benthic Parameter Assessment at Johnston Atoll, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Point-count surveys at 50-cm intervals were conducted along 2 consecutively placed, 25m line transect lines, as part of Rapid Ecological Assessments conducted at 6...

  14. CRED REA Benthic Parameter Assessment at Tutuila Island, American Samoa in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Point-count surveys at 50-cm intervals were conducted along 2 consecutively placed, 25m line transect lines, as part of Rapid Ecological Assessments conducted at 23...

  15. CRED REA Benthic Parameter Assessment at Rose Atoll, American Samoa in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Point-count surveys at 50-cm intervals were conducted along 2 consecutively placed, 25m line transect lines, as part of Rapid Ecological Assessments conducted at 12...

  16. CRED REA Benthic Parameter Assessment at Jarvis Island, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Point-count surveys at 50-cm intervals were conducted along 2 consecutively placed, 25m line transect lines, as part of Rapid Ecological Assessments conducted at 9...

  17. CRED REA Benthic Parameter Assessment at Ta'u Island, American Samoa in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Point-count surveys at 50-cm intervals were conducted along 2 consecutively placed, 25m line transect lines, as part of Rapid Ecological Assessments conducted at 9...

  18. CRED REA Benthic Parameter Assessment at Howland, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Point-count surveys at 50-cm intervals were conducted along 2 consecutively placed, 25m line transect lines, as part of Rapid Ecological Assessments conducted at 5...

  19. Environmental assessment of the hydraulic structures by various artificialization parameters

    Directory of Open Access Journals (Sweden)

    Marković Milica

    2014-01-01

    Full Text Available The natural rivers and their flood areas are among the most complex and diverse ecosystems in the world. Traditional structural solutions in river training works are focused on basic requirements as flood protection, littoral zone protection, river bed protection, providing the space for economic development. In this study a method of anticipated assessment of certain physical impact of designed river training works is presented, perceived as global effect of river bed artificialization. The method mainly serves to compare the various possible solutions of river training works, based on the „artificialization parameter” also named „global impact GI”.

  20. Constraining the Galactic structure parameters with the XSTPS-GAC and SDSS photometric surveys

    Science.gov (United States)

    Chen, B.-Q.; Liu, X.-W.; Yuan, H.-B.; Robin, A. C.; Huang, Y.; Xiang, M.-S.; Wang, C.; Ren, J.-J.; Tian, Z.-J.; Zhang, H.-W.

    2017-01-01

    Photometric data from the Xuyi Schmidt Telescope Photometric Survey of the Galactic Anticentre (XSTPS-GAC) and the Sloan Digital Sky Survey (SDSS) are used to derive the global structure parameters of the smooth components of the Milky Way. The data, which cover nearly 11 000 deg2 sky area and the full range of Galactic latitude, allow us to construct a globally representative Galactic model. The number density distribution of Galactic halo stars is fitted with an oblate spheroid that decays by power law. The best fitting yields an axis ratio and a power-law index κ = 0.65 and p = 2.79, respectively. The r-band differential star counts of three dwarf samples are then fitted with a Galactic model. The best-fitting model yielded by a Markov Chain Monte Carlo analysis has thin and thick disc scale heights and lengths of H1 = 322 pc and L1 = 2343 pc, H2 = 794 pc and L2 = 3638 pc, a local thick-to-thin disc density ratio of f2 = 11 per cent, and a local density ratio of the oblate halo to the thin disc of fh = 0.16 per cent. The measured star count distribution, which is in good agreement with the above model for most of the sky area, shows a number of statistically significant large-scale overdensities, including some of the previously known substructures, such as the Virgo overdensity and the so-called `north near structure', and a new feature between 150° < l < 240° and -1° < b < -5°, at an estimated distance between 1.0 and 1.5 kpc. The Galactic North-South asymmetry in the anticentre is even stronger than previously thought.

  1. Constraining the Galactic structure parameters with the XSTPS-GAC and SDSS photometric surveys

    Science.gov (United States)

    Chen, B.-Q.; Liu, X.-W.; Yuan, H.-B.; Robin, A. C.; Huang, Y.; Xiang, M.-S.; Wang, C.; Ren, J.-J.; Tian, Z.-J.; Zhang, H.-W.

    2016-10-01

    Photometric data from the Xuyi Schmidt Telescope Photometric Survey of the Galactic Anticentre (XSTPS-GAC) and the Sloan Digital Sky Survey (SDSS) are used to derive the global structure parameters of the smooth components of the Milky Way. The data, which cover nearly 11,000 deg2 sky area and the full range of Galactic latitude, allow us to construct a globally representative Galactic model. The number density distribution of Galactic halo stars is fitted with an oblate spheroid that decays by power law. The best-fit yields an axis ratio and a power law index κ = 0.65 and p = 2.79, respectively. The r-band differential star counts of three dwarf samples are then fitted with a Galactic model. The best-fit model yielded by a Markov Chain Monte Carlo analysis has thin and thick disk scale heights and lengths of H1 = 322 pc and L1 =2343 pc, H2 =794 pc and L2 =3638 pc, a local thick-to-thin disk density ratio of f2 =11 per cent, and a local density ratio of the oblate halo to the thin disk of fh =0.16 per cent. The measured star count distribution, which is in good agreement with the above model for most of the sky area, shows a number of statistically significant large scale overdensities, including some of the previously known substructures, such as the Virgo overdensity and the so-called "north near structure", and a new feature between 150°

  2. Assessing the Courts in Russia: Parameters of Progress under Putin

    Directory of Open Access Journals (Sweden)

    Peter H. Solomon

    2008-10-01

    Full Text Available The Soviet legacy included courts that were dependent and weak, and whose reform had only just begun. The Yeltsin era witnessed considerable progress in making judges more independent and powerful, but the efforts were seriously constrained by budgetary shortcomings and paralysis in the legislative approval of needed procedural changes. As we shall see, the Putin administration overcame both of these obstacles and at the same time began addressing the thorny question of how to make courts and judges accountable without undue harm to their independence. It also started to address the scepticism about the courts among a significant part of the public, through efforts to improve media coverage, make information about courts more available, and make courts user friendly. While praiseworthy and bound to improve the reality and the perception of the administration of justice overall, these initiatives did not end attempts to exert influence on judges and case outcomes by powerful people (in the public and private sectors or the mechanisms that facilitated their efforts. This essay begins by identifying criteria for assessing the quality of the administration of justice in any country, including in the post-soviet world and suggesting specific markers (usually qualitative connected to each of the criteria developed above. Then, the essay provides an account of relevant policy initiatives in judicial reform undertaken first under Yeltsin and then in the Putin years. The essay goes to provide an assessment of the state of the courts in the Russian federation in 2007 in the light of the criteria and markers supplied in the first section. It concludes with a look to the future, and the identification of crucial markers of change for the post-Putin era.

  3. Physiological and stroke parameters to assess aerobic capacity in swimming.

    Science.gov (United States)

    Oliveira, Mariana F M; Caputo, Fabrizio; Lucas, Ricardo D; Denadai, Benedito S; Greco, Camila C

    2012-09-01

    To identify the speed corresponding to anaerobic threshold using the D-max method for both blood lactate and biomechanical stroke parameters determined in an incremental swimming test and to compare this information with the speed corresponding to the maximal lactate steady state (SMLSS). Five male long-distance swimmers and 8 triathletes (N=13; age 23.8±9.5 y, height 1.76±0.1 m, weight 71.3±9.8 kg) performed the following protocols: maximal 400-m test to determine maximal aerobic speed (S400); 7×200-m incremental test to determine the speed corresponding to the D-max point on the blood lactate (SLa), stroke-rate (SSR), stroke-length (SSL), and stroke-index (SSI) responses; and two to four 30-min submaximal tests to determine the SMLSS. SLA (1.18±0.08 m/s), SSI (1.18±0.08 m/s), SSR (1.17±0.1 m/s), and SSL (1.16±0.09 m/s) were not significantly different from each other or from SMLSS (1.13±0.08 m/s). There were high correlations between SLA, SSI, SSR, SSL, and SMLSS (r=.91, .89, .85, and .80, respectively). The typical errors of estimate for SLA (3.2%), SSI (3.7%), SSR (4.1%), and SSL (4.7%) suggest good validity of these variables to predict SMLSS. Furthermore, all physiological and biomechanical variables were moderately to highly correlated with S400 (r=.73-.95). It is possible to obtain a physiological index of aerobic capacity and performance using simple biomechanical measurements during an incremental test without performing blood lactate analyses.

  4. CTD data - Pre-recruit surveys to aid stock assessment

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Annual surveys of juvenile fish and ecosystem status have been conducted since 2011 surveying the entire coast of Oregon and southern Washington. Trawl surveys are...

  5. U.S. Geological Survey Geologic Carbon Sequestration Assessment

    Science.gov (United States)

    Warwick, P. D.; Blondes, M. S.; Brennan, S.; Corum, M.; Merrill, M. D.

    2012-12-01

    The Energy Independence and Security Act of 2007 authorized the U.S. Geological Survey (USGS) to conduct a national assessment of potential geological storage resources for carbon dioxide (CO2) in consultation with the U.S. Department of Energy (DOE), the U.S. Environmental Protection Agency (EPA) and State geological surveys. To conduct the assessment, the USGS developed a probability-based assessment methodology that was extensively reviewed by experts from industry, government and university organizations (Brennan et al., 2010, http://pubs.usgs.gov/of/2010/1127). The methodology is intended to be used at regional to sub-basinal scales and it identifies storage assessment units (SAUs) that are based on two depth categories below the surface (1) 3,000 to 13,000 ft (914 to 3,962 m), and (2) 13,000 ft (3,962 m) and greater. In the first category, the 3,000 ft (914 m) minimum depth of the storage reservoir ensures that CO2 is in a supercritical state to minimize the storage volume. The depth of 13,000 ft (3,962 m) represents maximum depths that are accessible with average injection pressures. The second category represents areas where a reservoir formation has potential storage at depths below 13,000 ft (3,962 m), although they are not accessible with average injection pressures; these are assessed as a separate SAU. SAUs are restricted to formation intervals that contain saline waters (total dissolved solids greater than 10,000 parts per million) to prevent contamination of protected ground water. Carbon dioxide sequestration capacity is estimated for buoyant and residual storage traps within the basins. For buoyant traps, CO2 is held in place in porous formations by top and lateral seals. For residual traps, CO2 is contained in porous formations as individual droplets held within pores by capillary forces. Preliminary geologic models have been developed to estimate CO2 storage capacity in approximately 40 major sedimentary basins within the United States. More than

  6. Precast concrete unit assessment through GPR survey and FDTD modelling

    Science.gov (United States)

    Campo, Davide

    2017-04-01

    Precast concrete elements are widely used within United Kingdom house building offering ease in assembly and added values as structural integrity, sound and thermal insulation; most common concrete components include walls, beams, floors, panels, lintels, stairs, etc. The lack of respect of the manufacturer instruction during assembling, however, may induce cracking and short/long term loss of bearing capacity. GPR is a well-established not destructive technique employed in the assessment of structural elements because of real-time imaging, quickness of data collecting and ability to discriminate finest structural details. In this work, GPR has been used to investigate two different precast elements: precast reinforced concrete planks constituting the roof slab of a school and precast wood-cement blocks with insulation material pre-fitted used to build a perimeter wall of a private building. Visible cracks affected both constructions. For the assessment surveys, a GSSI 2.0 GHz GPR antenna has been used because of the high resolution required and the small size of the antenna case (155 by 90 by 105mm) enabling scanning up to 45mm from any obstruction. Finite Difference Time Domain (FDTD) numerical modelling was also performed to build a scenario of the expected GPR signal response for a preliminary real-time interpretation and to help solve uncertainties due to complex reflection patterns: simulated radargrams were built using Reflex Software v. 8.2, reproducing the same GPR pulse used for the surveys in terms of wavelet, nominal frequency, sample frequency and time window. Model geometries were derived from the design projects available both for the planks and the blocks; the electromagnetic properties of the materials (concrete, reinforcing bars, air-filled void, insulation and wooden concrete) were inferred from both values reported in literature and a preliminary interpretation of radargrams where internal layer interfaces were clearly recognizable and

  7. Survey of Ambient Air Pollution Health Risk Assessment Tools.

    Science.gov (United States)

    Anenberg, Susan C; Belova, Anna; Brandt, Jørgen; Fann, Neal; Greco, Sue; Guttikunda, Sarath; Heroux, Marie-Eve; Hurley, Fintan; Krzyzanowski, Michal; Medina, Sylvia; Miller, Brian; Pandey, Kiran; Roos, Joachim; Van Dingenen, Rita

    2016-09-01

    Designing air quality policies that improve public health can benefit from information about air pollution health risks and impacts, which include respiratory and cardiovascular diseases and premature death. Several computer-based tools help automate air pollution health impact assessments and are being used for a variety of contexts. Expanding information gathered for a May 2014 World Health Organization expert meeting, we survey 12 multinational air pollution health impact assessment tools, categorize them according to key technical and operational characteristics, and identify limitations and challenges. Key characteristics include spatial resolution, pollutants and health effect outcomes evaluated, and method for characterizing population exposure, as well as tool format, accessibility, complexity, and degree of peer review and application in policy contexts. While many of the tools use common data sources for concentration-response associations, population, and baseline mortality rates, they vary in the exposure information source, format, and degree of technical complexity. We find that there is an important tradeoff between technical refinement and accessibility for a broad range of applications. Analysts should apply tools that provide the appropriate geographic scope, resolution, and maximum degree of technical rigor for the intended assessment, within resources constraints. A systematic intercomparison of the tools' inputs, assumptions, calculations, and results would be helpful to determine the appropriateness of each for different types of assessment. Future work would benefit from accounting for multiple uncertainty sources and integrating ambient air pollution health impact assessment tools with those addressing other related health risks (e.g., smoking, indoor pollution, climate change, vehicle accidents, physical activity).

  8. Ground-based infrared surveys: imaging the thermal fields at volcanoes and revealing the controlling parameters.

    Science.gov (United States)

    Pantaleo, Michele; Walter, Thomas

    2013-04-01

    Temperature monitoring is a widespread procedure in the frame of volcano hazard monitoring. Indeed temperature changes are expected to reflect changes in volcanic activity. We propose a new approach, within the thermal monitoring, which is meant to shed light on the parameters controlling the fluid pathways and the fumarole sites by using infrared measurements. Ground-based infrared cameras allow one to remotely image the spatial distribution, geometric pattern and amplitude of fumarole fields on volcanoes at metre to centimetre resolution. Infrared mosaics and time series are generated and interpreted, by integrating geological field observations and modeling, to define the setting of the volcanic degassing system at shallow level. We present results for different volcano morphologies and show that lithology, structures and topography control the appearance of fumarole field by the creation of permeability contrasts. We also show that the relative importance of those parameters is site-dependent. Deciphering the setting of the degassing system is essential for hazard assessment studies because it would improve our understanding on how the system responds to endogenous or exogenous modification.

  9. A Survey of Compact Star Clusters in the S-W Field of the M31 Disk. Structural Parameters. II

    CERN Document Server

    Sableviciute, I; Kodaira, K; Narbutis, D; Stonkute, R; Bridzius, A

    2007-01-01

    The King and the EFF (Elson, Fall & Freeman 1987) analytical models are employed to determine the structural parameters of star clusters using an 1-D surface brightness profile fitting method. The structural parameters are derived and a catalogue is provided for 51 star cluster candidates from the survey of compact star clusters in the South-West field of the M31 disk performed by Kodaira et al. (2004).

  10. Programmatic assessment of student experiences using a longitudinal survey

    Directory of Open Access Journals (Sweden)

    Draugalis JR

    2007-09-01

    Full Text Available Objectives: The purpose of this study was to gather longitudinal data on a pharmacy class cohort concerning programmatic components as well as develop a profile of student experiences as they progress through the curriculum.Methods: The Class of 2006 (n = 67 completed a 2 page instrument at the conclusion of the first 3 professional years (PY concerning hours spent in various activities, overall quality of various programmatic components, relationships with others in the college, and employment information. During senior week, a more extensive exit survey was administered.Results: At the conclusion of PY1, 56.5% of the class was working as a pharmacy intern. By PY3 this increased to 88.1% with a decrease to 65.7% in the final year. The hourly range of hours worked followed the same pattern. The rating of Dean’s Office Staff and interactions with faculty members remained constant across all 4 years. In the final exit survey the 2 lowest rated program components were the quality of the interaction with assigned faculty advisor and the availability of professional electives. There was no difference across the professional years for the quality of relationships with staff or faculty; however, the mean rating of the quality of relationships with other students was higher for PY4 when compared to PY1.Conclusions: College faculty, administrators, and committees have used the information gathered from students in program assessment and enhancement efforts. Longitudinal data collection allows for tracking of changes and interventions.

  11. Risk Assessment Techniques and Survey Method for COTS Components

    CERN Document Server

    Gupta, Rashmi

    2012-01-01

    The Rational Unified Process a software engineering process is gaining popularity nowadays. RUP delivers best software practices for component software Development life cycle It supports component based software development. Risk is involved in every component development phase .neglecting those risks sometimes hampers the software growth and leads to negative outcome. In Order to provide appropriate security and protection levels, identifying various risks is very vital. Therefore Risk identification plays a very crucial role in the component based software development This report addresses incorporation of component based software development cycle into RUP phases, assess several category of risk encountered in the component based software. It also entails a survey method to identify the risk factor and evaluating the overall severity of the component software development in terms of the risk. Formula for determining risk prevention cost and finding the risk probability is also been included. The overall go...

  12. Assessing the Photometric Calibration of the ASAS Survey

    Science.gov (United States)

    Berdnikov, L. N.; Dambis, A. K.

    2016-05-01

    We compare bona fide calibrated mean VIC magnitudes of several hundred stars found in the CCD frames taken in 2012 during our photometric observations of 109 Cepheids and RR Lyrae type stars made at the South African Astronomical Observatory to the corresponding mean VIC magnitudes measured in the course of the ASAS survey to assess the quality of ASAS photometry and derive the appropriate transformation equations. We conclude that as far as the only serious caveat due to photometric errors, which range from ˜ 0.05m for relatively bright stars to about ˜ 0.15m for ˜ 14m stars and translates into extra fractional distance error of 0.025-0.07.

  13. National Wetland Condition Assessment 2011: A Collaborative Survey of the Nation's Wetlands

    Science.gov (United States)

    The National Wetland Condition Assessment 2011: A Collaborative Survey presents the results of an unprecedented assessment of the nation’s wetlands. This report is part of the National Aquatic Resource Surveys, a series of statistically based surveys designed to provide the publi...

  14. Thyroid Hormones and Electrocardiographic Parameters: Findings from the Third National Health and Nutrition Examination Survey

    Science.gov (United States)

    Zhang, Yiyi; Post, Wendy S.; Cheng, Alan; Blasco-Colmenares, Elena; Tomaselli, Gordon F.; Guallar, Eliseo

    2013-01-01

    Introduction Altered thyroid status exerts a major effect on the heart. Individuals with hypo- or hyperthyroidism showed various changes in electrocardiograms. However, little is known about how variations in thyroid hormone levels within the normal range affect electrical activities of the heart in the general population. Methods and Results We conducted a cross-sectional analysis of 5,990 men and women from the Third National Health and Nutrition Examination Survey. Serum total T4 was measured by immunoassay and TSH was measured by chemiluminescent assay. We categorized T4 and TSH into 7 groups with cut-offs at the 5th, 20th, 40th, 60th, 80th, and 95th percentiles of the weighted population distribution. Electrocardiographic parameters were measured from the standard 12-lead electrocardiogram. We found a positive linear association between serum total T4 level and heart rate in men, and a U-shape association between T4 and PR interval in men and women. TSH level was positively associated with QRS interval in men, while a U-shape association between TSH and QRS was observed in women. No clear graded association between thyroid hormones and corrected QT or JT was found, except that men in the highest category of T4 levels appeared to have longer corrected QT and JT, and men in the lowest category of T4 appeared to have shorter corrected QT and JT. Conclusions Variation in thyroid hormone levels in the general population, even within the normal range, was associated with various ECG changes. PMID:23593140

  15. Thyroid hormones and electrocardiographic parameters: findings from the third national health and nutrition examination survey.

    Directory of Open Access Journals (Sweden)

    Yiyi Zhang

    Full Text Available INTRODUCTION: Altered thyroid status exerts a major effect on the heart. Individuals with hypo- or hyperthyroidism showed various changes in electrocardiograms. However, little is known about how variations in thyroid hormone levels within the normal range affect electrical activities of the heart in the general population. METHODS AND RESULTS: We conducted a cross-sectional analysis of 5,990 men and women from the Third National Health and Nutrition Examination Survey. Serum total T4 was measured by immunoassay and TSH was measured by chemiluminescent assay. We categorized T4 and TSH into 7 groups with cut-offs at the 5(th, 20(th, 40(th, 60(th, 80(th, and 95(th percentiles of the weighted population distribution. Electrocardiographic parameters were measured from the standard 12-lead electrocardiogram. We found a positive linear association between serum total T4 level and heart rate in men, and a U-shape association between T4 and PR interval in men and women. TSH level was positively associated with QRS interval in men, while a U-shape association between TSH and QRS was observed in women. No clear graded association between thyroid hormones and corrected QT or JT was found, except that men in the highest category of T4 levels appeared to have longer corrected QT and JT, and men in the lowest category of T4 appeared to have shorter corrected QT and JT. CONCLUSIONS: Variation in thyroid hormone levels in the general population, even within the normal range, was associated with various ECG changes.

  16. SWFSC/MMTD/PI: Pacific Islands Cetacean Ecosystem Assessment Survey (PICEAS) 2005

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — PICEAS (Pacific Islands Cetacean Ecosystem Assessment Survey) 2005 was an ecosystem survey in the U.S. Exclusive Economic Zone (EEZ) waters of Palmyra and Johnston...

  17. Practice Parameter for the Psychiatric Assessment and Management of Physically Ill Children and Adolescents

    Science.gov (United States)

    Journal of the American Academy of Child & Adolescent Psychiatry, 2009

    2009-01-01

    An introduction for any medical health clinician on the knowledge and skills that are needed for the psychiatric assessment and management of physically ill children and adolescents is presented. These parameters are presented to assist clinicians in psychiatric decision making.

  18. Assessing competence: the European Survey on Aging Protocol (ESAP).

    Science.gov (United States)

    Fernández-Ballesteros, Rocío; Zamarrón, María Dolores; Rudinger, Georg; Schroots, Johannes J F; Hekkinnen, Eino; Drusini, Andrea; Paul, Constanza; Charzewska, Jadwiga; Rosenmayr, Leopold

    2004-01-01

    The main goal of this research project was to translate and adapt the European Survey on Ageing Protocol (ESAP) to 7 European countries/cultures. This article presents preliminary results from the ESAP, the basic assessment instrument of EXCELSA (European Longitudinal Study of Aging). 672 individuals aged 30-85, selected through quota sampling (by age, gender, education and living conditions), participated in this study, with 96 subjects from each of the 7 European countries. The basic research protocol for assessing competence and its determinants was designed to be administered in a 90-min in-home face-to-face interview. It contains a series of questions, instruments, scales and physical tests assessing social relationships and caregiving, mental abilities, well-being, personality, mastery and perceived control, self-reported health, lifestyles, anthropometry, biobehavioral measures and sociodemographic variables. 84% of ESAP measures are age-dependent and 75% of them discriminate between education levels. Minor differences were found due to gender, and between people living in rural and urban areas. Exploratory factor analysis yielded 10 factors accounting for 67.85% of total variance, one of which was identified as cognitive and physical 'competence'. This factorial structure was tested across countries through concordance coefficients. Finally, using structural equation modeling, our data were fitted into a model of competence. When the sample was split into younger groups (aged 30-49 years) and older ones (50 and more years), the same model was appropriate for our data. The results are discussed in accordance with other findings on psychosocial, biophysical and sociodemographic components of competence, and also in accordance with theories on competence and successful aging. Copyright 2004 S. Karger AG, Basel

  19. Practice Parameter for the Assessment and Treatment of Children and Adolescents with Bipolar Disorder

    Science.gov (United States)

    Journal of the American Academy of Child and Adolescent Psychiatry, 2007

    2007-01-01

    This practice parameter reviews the literature on the assessment and treatment of children and adolescents with bipolar disorder. The parameter focuses primarily on bipolar 1 disorder because that is the type most often studied in juveniles. The presentation of bipolar disorder in youth, especially children, is often considered atypical compared…

  20. Recommendations concerning models and parameters best suited to breeder reactor environmental radiological assessments

    Energy Technology Data Exchange (ETDEWEB)

    Miller, C.W.; Baes, C.F. III; Dunning, D.E. Jr.

    1980-05-01

    Recommendations are presented concerning the models and parameters best suited for assessing the impact of radionuclide releases to the environment by breeder reactor facilities. These recommendations are based on the model and parameter evaluations performed during this project to date. Seven different areas are covered in separate sections.

  1. Influenza knowledge, attitude, and behavior survey for grade school students: design and novel assessment methodology.

    Science.gov (United States)

    Koep, Tyler H; Huskins, W Charles; Clemens, Christal; Jenkins, Sarah; Pierret, Chris; Ekker, Stephen C; Enders, Felicity T

    2014-12-01

    Despite the fact infectious diseases can spread readily in grade schools, few studies have explored prevention in this setting. Additionally, we lack valid tools for students to self-report knowledge, attitudes, and behaviors. As part of an ongoing study of a curriculum intervention to promote healthy behaviors, we developed and evaluated age-appropriate surveys to determine students' understanding of influenza prevention. Surveys were adapted from adolescent and adult influenza surveys and administered to students in grades 2-5 (ages 7-11) at two Rochester public schools. We assessed student understanding by analyzing percent repeatability of 20 survey questions and compared percent "don't know" (DK) responses across grades, gender, and race. Questions thought to be ambiguous after early survey administration were investigated in student focus groups, modified as appropriate, and reassessed. The response rate across all surveys was >87%. Survey questions were well understood; 16 of 20 questions demonstrated strong pre/post repeatability (>70%). Only 1 question showed an increase in DK response for higher grades (p survey questions and improved measures of understanding in the final survey administration. Grade-school students' knowledge, attitudes and behavior toward influenza prevention can be assessed using surveys. Quantitative and qualitative analysis may be used to assess participant understanding and refine survey development for pediatric survey instruments. These methods may be used to assess the repeatability and validity of surveys to assess the impact of health education interventions in young children.

  2. Nurses' perceptions of pain assessment and management practices in neonates: a cross-sectional survey.

    Science.gov (United States)

    Pölkki, Tarja; Korhonen, Anne; Laukkala, Helena

    2017-08-22

    This study aimed to describe pain assessment and management practices for neonates based on nurses' perceptions in neonatal intensive care units (NICUs). A descriptive cross-sectional survey was conducted in Finland. Of all nurses (N = 422) working in the NICUs in the country's five university hospitals, 294 responded to a questionnaire. The data were analysed by statistical methods. Nurses agreed that pain assessment is important, but over half of them reported being able to assess pain in a reliable way without using pain assessment scales. Physiological parameters and changes in neonate's behaviour were reported as routinely observed, but many specific facial expressions indicative of pain were less often observed. Only a few pain assessment scales were known, and they were not routinely used in clinical practice. Most nurses reported using physical methods and giving oral sucrose along with non-nutritive sucking. Counselling parents to continue breastfeeding or guiding them to use skin-to-skin care or music was rarely reported as used to alleviate infants' pain. Educational interventions for nurses are needed to improve pain assessment and management practices in the NICUs. In addition, there is a need for national guidelines in order to ensure the equal treatment to all neonates. © 2017 Nordic College of Caring Science.

  3. Assessment on Evaluating Parameters of Rice Core Collections Constructed by Genotypic Values and Molecular Marker Information

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Eleven evaluating parameters for rice core collection were assessed based on genotypic values and molecular marker information. Monte Carlo simulation combined with mixed linear model was used to eliminate the interference from environment in order to draw more reliable results. The coincidence rate of range (CR) was the optimal parameter. Mean Simpson index (MD), mean Shannon-Weaver index of genetic diversity (M1) and mean polymorphism information content (MPIC) were important evaluating parameters. The variable rate of coefficient of variation (VR) could act as an important reference parameter for evaluating the variation degree of core collection. Percentage of polymorphic loci (p) could be used as a determination parameter for the size of core collection. Mean difference percentage (MD) was a determination parameter for the reliability judgment of core collection. The effective evaluating parameters for core collection selected in the research could be used as criteria for sampling percentage in different plant germplasm populations.

  4. The U.S. Geological Survey National Helium Resource Assessment

    Science.gov (United States)

    Brennan, S. T.; East, J. A., II

    2015-12-01

    In 2013, the U.S. Congress passed legislation directing the U.S. Geological Survey (USGS) to complete a national assessment of subsurface helium gas resources. As part of this assessment, the USGS has constructed a database of helium concentration from compositional analyses of produced gas. Though most data of this data is non-proprietary, helium data have been taken from both public and proprietary sources, with a majority taken from the USGS geochemical database (http://energy.usgs.gov/GeochemistryGeophysics/GeochemistryLaboratories/GeochemistryLaboratories-GeochemistryDatabase.aspx#4413382-introduction) and from the U.S. Bureau of Land Management (BLM) natural gas database. Altogether, there are over 16,000 analyses of natural gas composition compiled. In order to complete the assessment, it was necessary to correlate the well data with geologic reservoir data so that the helium concentrations could be compared with the reservoir and field-level gas production, in place gas volumes, and gas recovery factors. The well data from the compiled database were initially cross-referenced with the proprietary IHS Inc. well database, where possible. The results of that effort were then cross-referenced with three additional databases: the proprietary NRG Associates database of significant oil and gas fields of the United States, the non-proprietary U.S. Department of Energy's gas information system (GASIS), and an internal BLM reservoir and field database. These field and reservoir databases provide the data needed to estimate the in-place helium resources for fields with economic concentrations of helium. In order for helium production to be economic, the gas produced from geologic reservoirs must be greater than 0.3 mole percent (mol%), or in the case of liquefied natural gas processing, greater than 0.04 mol%. The field and reservoir specific estimates of total gas in place volumes, gas recovery factors, and helium concentrations, can be used as inputs for a

  5. First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters

    CERN Document Server

    Kessler, Richard; Cinabro, David; Vanderplas, Jake; Frieman, Joshua A; Marriner, John; Davis, Tamara M; Dilday, Benjamin; Holtzman, Jon; Jha, Saurabh; Lampeitl, Hubert; Sako, Masao; Smith, Mathew; Zheng, Chen; Nichol, Robert C; Bassett, Bruce; Bender, Ralf; Depoy, Darren L; Doi, Mamoru; Elson, Ed; Filippenko, Alex V; Foley, Ryan J; Garnavich, Peter M; Hopp, Ulrich; Ihara, Yutaka; Ketzeback, William; Kollatschny, W; Konishi, Kohki; Marshall, Jennifer L; McMillan, Russet J; Miknaitis, Gajus; Morokuma, Tomoki; M"ortsell, Edvard; Pan, Kaike; Prieto, Jose Luis; Richmond, Michael W; Riess, Adam G; Romani, Roger; Schneider, Donald P; Sollerman, Jesper; Takanashi, Naohiro; Tokita, Kouichi; van der Heyden, Kurt; Wheeler, J C; Yasuda, Naoki; York, Donald

    2009-01-01

    We present measurements of the Hubble diagram for 103 Type Ia supernovae (SNe) with redshifts 0.04 < z < 0.42, discovered during the first season (Fall 2005) of the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey. These data fill in the redshift "desert" between low- and high-redshift SN Ia surveys. We combine the SDSS-II measurements with new distance estimates for published SN data from the ESSENCE survey, the Supernova Legacy Survey, the Hubble Space Telescope, and a compilation of nearby SN Ia measurements. Combining the SN Hubble diagram with measurements of Baryon Acoustic Oscillations from the SDSS Luminous Red Galaxy sample and with CMB temperature anisotropy measurements from WMAP, we estimate the cosmological parameters w and Omega_M, assuming a spatially flat cosmological model (FwCDM) with constant dark energy equation of state parameter, w. For the FwCDM model and the combined sample of 288 SNe Ia, we find w = -0.76 +- 0.07(stat) +- 0.11(syst), Omega_M = 0.306 +- 0.019(stat) +- 0.023...

  6. Assessment of the Impact of Geomechanical Parameters Variability on Underground Excavations Stability Using Response Surface Method

    Science.gov (United States)

    Pytel, Witold; Świtoń, Joanna

    2013-03-01

    Recognition of properties of the rock mass surrounding a mineral deposit is particularly important for the mining operations at greater depths. Since the rock mass is usually not homogeneous, and its parameters have characteristics of randomness, underground workings safety issue should always be analysed taking into account the dispersion of the values of these parameters around their mean values. In order to assess the impact of geotechnical parameters uncertainty on the excavation stability one uses the appropriate statistical approach. In this paper, by analysing successive combinations of geomechanical parameters of the rock in the measured range, we examined the effect of their variability on risk of underground excavation instability using response surface method.

  7. Constraining higher-order parameters for primordial non-Gaussianities from power spectra and bispectra of imaging survey

    CERN Document Server

    Hashimoto, Ichihiko; Matsubara, Takahiko; Namikawa, Toshiya; Yokoyama, Shuichiro

    2015-01-01

    We investigate the statistical power of higher-order statistics and cross-correlation statistics to constrain the primordial non-Gaussianity from the imaging surveys. In particular, we consider the local-type primordial non- Gaussianity and discuss how well one can tightly constrain the higher-order non-Gaussian parameters ($g_{\\rm NL}$ and $\\tau_{\\rm NL}$) as well as the leading order parameter $f_{\\rm NL}$ from the halo/galaxy clustering and weak gravitational lensing measurements. Making use of a strong scale-dependent behavior in the galaxy/halo clustering, Fisher matrix analysis reveals that the bispectra can break the degeneracy between non-Gaussian parameters ($f_{\\rm NL}$, $g_{\\rm NL}$ and $\\tau_{\\rm NL}$) and this will give simultaneous constraints on those three parameters. The combination of cross-correlation statistics further improves the constraints by factor of 2. As a result, upcoming imaging surveys like the Large Synoptic Survey Telescope have the potential to improve the constraints on the ...

  8. THE ASSESSMENT OF OPPORTUNITIES AND THREATS FOR CHANGES OF TECHNOLOGIES AGGREGATE THROUGH ORDER PARAMETERS

    Directory of Open Access Journals (Sweden)

    T.A. Nelyubina

    2009-09-01

    Full Text Available In this article, author considers a class of technologies aggregates, which can be present as complex socio-economic systems. The order parameters are chosen as instrument of reflect the system integrity of this technologies aggregates. The analysis of aggregates through order parameters permit: to diagnose the state of the system and its life phase, understand the compatibility extent between the current state of system and the assumed modifications in it, understand the nature of attendant risks. It also allows to compare the systems, track the dynamics of order parameters and forecast the trends of the future changes. Author formulates number and definitions of order parameters for this class of technologies aggregates; proposes the assessment method of condition of order parameters for technologies aggregate of region; makes express-assessment of preparedness level of technologies aggregates of some regions to innovation changes.

  9. Validity of DynaPort GaitMonitor for assessment of spatiotemporal parameters in amputee gait

    NARCIS (Netherlands)

    Houdijk, Han; Appelman, Franka M; Van Velzen, Judith M; Van der Woude, Lucas H V; Van Bennekom, Coen A M

    2008-01-01

    Accelerometry can be used to objectively assess the walking ability of people with a lower-limb prosthesis inside and outside the laboratory setting. In this study, the validity of the DynaPort GaitMonitor software (McRoberts, The Hague, the Netherlands) for assessing spatiotemporal parameters of am

  10. Peer Assessment for Construction Management and Quantity Surveying Students

    Directory of Open Access Journals (Sweden)

    Patricia McLaughlin

    2012-11-01

    Full Text Available Students undertaking the Bachelor of ConstructionManagement degree course at RMIT University, Melbourne,qualify for registration with the Australian Institute ofQuantity Surveyors (AIQS and the Australian Institute ofBuilding (AIB upon graduation. Over the past decade thedegree course has been constantly upgraded and altered inline with recommendations from professional bodies such asthese and other industry partners. In 1994 the Departmentof Building and Construction Economics re-assesseda range of subjects including the first year technologysubjects. Out of the review a problem-based integratedlearning unit was developed and tested. This unit has nowbeen in place for ten years.Quantity surveying and construction management likemost other professions in the construction industryrequire teamwork and advanced consultation skills. Theseskills may be learnt through experience but there isconsiderable evidence that these skills can be taught in theundergraduate years. Therefore in line with team-basedapproaches used in industry and professional constructionsettings, this year a new assessment model - peerassessment - will be applied to the problem-based learningunit. This paper describes the procedures and processesused to introduce the change and examines the theoreticalbase upon which the model was developed.

  11. Measurements of gear and environmental parameters during surveys with the GOV trawl

    National Research Council Canada - National Science Library

    Stewart, P.A.M; Rivoirard, J

    1997-01-01

    .... To investigate the catching performance of the GOV trawl, data were collected on 11 surveys. It was thought that catch would depend mainly on fishing ground, depth, year, swept volume, towing speed, water temperature and light intensity...

  12. Assessing Distance Learning Using a Website Survey. AIR 1999 Annual Forum Paper.

    Science.gov (United States)

    Cartwright, David W.; Thompson, Robert J.; Poole, Max C.; Kester, Diane D.

    This paper describes efforts at East Carolina University (North Carolina) to develop a survey instrument and related procedures to assess distance learning courses. The survey was conducted during the 1998-99 academic year via the World Wide Web and combined the Student Opinion of Instruction Survey (SOIS) with additional questions that assessed…

  13. A systematic review of childhood maltreatment assessments in population-representative surveys since 1990.

    Directory of Open Access Journals (Sweden)

    Wendy Hovdestad

    Full Text Available Population-representative surveys that assess childhood maltreatment and health are a valuable resource to explore the implications of child maltreatment for population health. Systematic identification and evaluation of such surveys is needed to facilitate optimal use of their data and to inform future research.To inform researchers of the existence and nature of population-representative surveys relevant to understanding links between childhood maltreatment and health; to evaluate the assessment of childhood maltreatment in this body of work.We included surveys that: 1 were representative of the non-institutionalized population of any size nation or of any geopolitical region ≥ 10 million people; 2 included a broad age range (≥ 40 years; 3 measured health; 4 assessed childhood maltreatment retrospectively; and 5 were conducted since 1990. We used Internet and database searching (including CINAHL, Embase, ERIC, Global Health, MEDLINE, PsycINFO, Scopus, Social Policy and Practice: January 1990 to March 2014, expert consultation, and other means to identify surveys and associated documentation. Translations of non-English survey content were verified by fluent readers of survey languages. We developed checklists to abstract and evaluate childhood maltreatment content.Fifty-four surveys from 39 countries met inclusion criteria. Sample sizes ranged from 1,287-51,945 and response rates from 15%-96%. Thirteen surveys assessed neglect, 15 emotional abuse; 18 exposure to family violence; 26 physical abuse; 48 sexual abuse. Fourteen surveys assessed more than three types; six of these were conducted since 2010. In nine surveys childhood maltreatment assessments were detailed (+10 items for at least one type of maltreatment. Seven surveys' assessments had known reliability and/or validity.Data from 54 surveys can be used to explore the population health relevance of child maltreatment. Assessment of childhood maltreatment is not comprehensive but

  14. Assessment of Tooth Wear Among Glass Factory Workers: WHO 2013 Oral Health Survey.

    Science.gov (United States)

    Chaturvedi, Pulkit; Bhat, Nagesh; Asawa, Kailash; Tak, Mridula; Bapat, Salil; Gupta, Vivek Vardhan

    2015-08-01

    Glass factory workers are often exposed to the hazardous environment that leads to deleterious oral health and subsequently, general health. We planned to determine the effects of the particulates present in the milieu on the tooth wear among workers. To assess tooth wear among glass factory workers in Jaipur, Rajasthan, India. A descriptive cross-sectional survey was conducted among 936 glass workers in Jaipur, Rajasthan, India from January-June 2014. A survey proforma was designed for tooth wear evaluation with the help of WHO Oral Health Assessment form 2013 (for adults). Information regarding oral health practices, adverse habits and dietary habits, demographic details was gathered and clinical parameters were recorded. The Chi-square test, t-test, One-way Analysis of Variance and a Stepwise multiple linear regression analysis. The most prevalent form of erosion was enamel erosion (589, 62.93%) with few subjects of deeper dentinal erosion and the difference was statistically significant (p=0.001). Dental erosion was found to be higher among males compared to females. Years of experience and educational status were identified as best predictors for dental erosion. It was concluded that there was considerable evidence of dental erosion found among the factory workers. Due to ignorance on social, cultural and health aspects, professional approach with regular dental care services for detection of early symptoms and planning of preventive strategies is warranted.

  15. Parameter survey of a rib stiffened wooden floor using sinus modes model

    DEFF Research Database (Denmark)

    Sjökvist, Lars-Göran; Brunskog, Jonas; Jacobsen, Finn

    2008-01-01

    that reacts onto the plate vibrations. A parameter study is performed with the aim to identify the most important parameters and their behaviour. The preliminary results show that the attenuation of the system is by far most evident in the direction across the beams. The influence from the basic input...

  16. Survey of mental health nurses' attitudes towards risk assessment, risk assessment tools and positive risk.

    Science.gov (United States)

    Downes, C; Gill, A; Doyle, L; Morrissey, J; Higgins, A

    2016-04-01

    WHAT IS KNOWN ON THE SUBJECT?: Risk assessment and safety planning are a core aspect of the role of the mental health nurse. Conflicting views exist on the value of risk assessment tools. Few studies have examined mental health nurses' attitudes towards risk, including use of tools and the role of positive risk in recovery. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: Mental health nurses view risk assessment as a core dimension of their role and not merely an exercise to fulfil organizational clinical safety and governance obligations. The majority of nurses hold positive attitudes towards therapeutic or positive risk, and consider creative risk taking as vital to people's recovery. The majority of nurses believe that risk assessment tools facilitate professional decision making, however, some are concerned that tools may negatively impact upon therapeutic relationships. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Ongoing education on the use of risk assessment tools is required to minimize views that their use is incompatible with therapeutic engagement, and to enable nurses to develop confidence to engage with positive risk and to allow service users make decisions and take responsibility. Introduction Risk assessment and safety planning are considered core components of the role of the mental health nurse; however, little is known about nurses' attitudes towards risk assessment, use of tools to assess risk or therapeutic risk taking. Aim This study aimed to explore mental health nurses' attitudes towards completing risk assessments, use of tools as an aid, and therapeutic or positive risk. Method An anonymous survey which included 13 attitudinal statements, rated on a five-point Likert scale, was completed by 381 mental health nurses working in adult services in Ireland. Findings Findings indicate strong support for the practice of risk assessment in mental health practice. The vast majority of nurses believe that risk assessment tools facilitate professional

  17. Automating the aviation command safety assessment survey as an Enterprise Information System (EIS)

    OpenAIRE

    Held, Jonathan S.; Mingo, Fred J.

    1999-01-01

    The Aviation Command Safety Assessment (ACSA) is a questionnaire survey methodology developed to evaluate a Naval Aviation Command's safety climate, culture, and safety program effectiveness. This survey was a manual process first administered in the fall of 1996. The primary goal of this thesis is to design, develop, and test an Internet-based, prototype model for administering this survey using new technologies that allow automated survey submission and analysis. The result of this thesis i...

  18. 77 FR 10033 - 30-Day Notice of Proposed Information Collection: Gender Assessment Surveys, OMB Control Number...

    Science.gov (United States)

    2012-02-21

    ... Notice of Proposed Information Collection: Gender Assessment Surveys, OMB Control Number 1405-xxxx ACTION... Information Collection: Gender Assessment Surveys. OMB Control Number: None. Type of Request: New Collection. Originating Office: Bureau of Educational and Cultural Affairs, Office of Policy and Evaluation,...

  19. Quantitative ultrasound and photoacoustic imaging for the assessment of vascular parameters

    CERN Document Server

    Meiburger, Kristen M

    2017-01-01

    This book describes the development of quantitative techniques for ultrasound and photoacoustic imaging in the assessment of architectural and vascular parameters. It presents morphological vascular research based on the development of quantitative imaging techniques for the use of clinical B-mode ultrasound images, and preclinical architectural vascular investigations on quantitative imaging techniques for ultrasounds and photoacoustics. The book is divided into two main parts, the first of which focuses on the development and validation of quantitative techniques for the assessment of vascular morphological parameters that can be extracted from B-mode ultrasound longitudinal images of the common carotid artery. In turn, the second part highlights quantitative imaging techniques for assessing the architectural parameters of vasculature that can be extracted from 3D volumes, using both contrast-enhanced ultrasound (CEUS) imaging and photoacoustic imaging without the addition of any contrast agent. Sharing and...

  20. Developing an International Survey of Teachers' Assessment Capabilities

    DEFF Research Database (Denmark)

    Renken, Maggie; Otrel-Cass, Kathrin; Cowie, Bronwen

    Professional standards require teachers to be assessment literate - to construct, administer, and score reliable, valid assessments, communicate interpretations and use evidence to adjust teaching to support students. This project investigates student-teachers’ assessment literacy throughout...

  1. Developing an International Survey of Teachers' Assessment Capabilities

    DEFF Research Database (Denmark)

    Renken, Maggie; Otrel-Cass, Kathrin; Cowie, Bronwen

    Professional standards require teachers to be assessment literate - to construct, administer, and score reliable, valid assessments, communicate interpretations and use evidence to adjust teaching to support students. This project investigates student-teachers’ assessment literacy throughout teac...

  2. Coherent Power Analysis in Multi-Level Studies Using Design Parameters from Surveys

    Science.gov (United States)

    Rhoads, Christopher

    2016-01-01

    Current practice for conducting power analyses in hierarchical trials using survey based ICC and effect size estimates may be misestimating power because ICCs are not being adjusted to account for treatment effect heterogeneity. Results presented in Table 1 show that the necessary adjustments can be quite large or quite small. Furthermore, power…

  3. Transferability of calibrated microsimulation model parameters for safety assessment using simulated conflicts.

    Science.gov (United States)

    Essa, Mohamed; Sayed, Tarek

    2015-11-01

    Several studies have investigated the relationship between field-measured conflicts and the conflicts obtained from micro-simulation models using the Surrogate Safety Assessment Model (SSAM). Results from recent studies have shown that while reasonable correlation between simulated and real traffic conflicts can be obtained especially after proper calibration, more work is still needed to confirm that simulated conflicts provide safety measures beyond what can be expected from exposure. As well, the results have emphasized that using micro-simulation model to evaluate safety without proper model calibration should be avoided. The calibration process adjusts relevant simulation parameters to maximize the correlation between field-measured and simulated conflicts. The main objective of this study is to investigate the transferability of calibrated parameters of the traffic simulation model (VISSIM) for safety analysis between different sites. The main purpose is to examine whether the calibrated parameters, when applied to other sites, give reasonable results in terms of the correlation between the field-measured and the simulated conflicts. Eighty-three hours of video data from two signalized intersections in Surrey, BC were used in this study. Automated video-based computer vision techniques were used to extract vehicle trajectories and identify field-measured rear-end conflicts. Calibrated VISSIM parameters obtained from the first intersection which maximized the correlation between simulated and field-observed conflicts were used to estimate traffic conflicts at the second intersection and to compare the results to parameters optimized specifically for the second intersection. The results show that the VISSIM parameters are generally transferable between the two locations as the transferred parameters provided better correlation between simulated and field-measured conflicts than using the default VISSIM parameters. Of the six VISSIM parameters identified as

  4. Gulf of Mexico Protected Species Assessment Aerial Surveys

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data sets include a compilation of aerial line-transect surveys conducted over continental shelf waters of the Gulf of Mexico since 1992. The majority of these...

  5. Updating Parameters for Volcanic Hazard Assessment Using Multi-parameter Monitoring Data Streams And Bayesian Belief Networks

    Science.gov (United States)

    Odbert, Henry; Aspinall, Willy

    2014-05-01

    Evidence-based hazard assessment at volcanoes assimilates knowledge about the physical processes of hazardous phenomena and observations that indicate the current state of a volcano. Incorporating both these lines of evidence can inform our belief about the likelihood (probability) and consequences (impact) of possible hazardous scenarios, forming a basis for formal quantitative hazard assessment. However, such evidence is often uncertain, indirect or incomplete. Approaches to volcano monitoring have advanced substantially in recent decades, increasing the variety and resolution of multi-parameter timeseries data recorded at volcanoes. Interpreting these multiple strands of parallel, partial evidence thus becomes increasingly complex. In practice, interpreting many timeseries requires an individual to be familiar with the idiosyncrasies of the volcano, monitoring techniques, configuration of recording instruments, observations from other datasets, and so on. In making such interpretations, an individual must consider how different volcanic processes may manifest as measureable observations, and then infer from the available data what can or cannot be deduced about those processes. We examine how parts of this process may be synthesised algorithmically using Bayesian inference. Bayesian Belief Networks (BBNs) use probability theory to treat and evaluate uncertainties in a rational and auditable scientific manner, but only to the extent warranted by the strength of the available evidence. The concept is a suitable framework for marshalling multiple strands of evidence (e.g. observations, model results and interpretations) and their associated uncertainties in a methodical manner. BBNs are usually implemented in graphical form and could be developed as a tool for near real-time, ongoing use in a volcano observatory, for example. We explore the application of BBNs in analysing volcanic data from the long-lived eruption at Soufriere Hills Volcano, Montserrat. We discuss

  6. A software tool to assess uncertainty in transient-storage model parameters using Monte Carlo simulations

    Science.gov (United States)

    Ward, Adam S.; Kelleher, Christa A.; Mason, Seth J. K.; Wagener, Thorsten; McIntyre, Neil; McGlynn, Brian L.; Runkel, Robert L.; Payn, Robert A.

    2017-01-01

    Researchers and practitioners alike often need to understand and characterize how water and solutes move through a stream in terms of the relative importance of in-stream and near-stream storage and transport processes. In-channel and subsurface storage processes are highly variable in space and time and difficult to measure. Storage estimates are commonly obtained using transient-storage models (TSMs) of the experimentally obtained solute-tracer test data. The TSM equations represent key transport and storage processes with a suite of numerical parameters. Parameter values are estimated via inverse modeling, in which parameter values are iteratively changed until model simulations closely match observed solute-tracer data. Several investigators have shown that TSM parameter estimates can be highly uncertain. When this is the case, parameter values cannot be used reliably to interpret stream-reach functioning. However, authors of most TSM studies do not evaluate or report parameter certainty. Here, we present a software tool linked to the One-dimensional Transport with Inflow and Storage (OTIS) model that enables researchers to conduct uncertainty analyses via Monte-Carlo parameter sampling and to visualize uncertainty and sensitivity results. We demonstrate application of our tool to 2 case studies and compare our results to output obtained from more traditional implementation of the OTIS model. We conclude by suggesting best practices for transient-storage modeling and recommend that future applications of TSMs include assessments of parameter certainty to support comparisons and more reliable interpretations of transport processes.

  7. Assessing the potential to combine attitude tracking and health campaign evaluation surveys.

    Science.gov (United States)

    Hollier, Lauren P; Pettigrew, Simone; Minto, Carolyn; Slevin, Terry; Strickland, Mark

    2016-04-06

    Issue addressed: Online surveys are becoming increasingly popular in health research because of the low cost and fast completion time. A large proportion of online survey costs are allocated to setup and administration expenses, which suggests that conducting fewer, longer surveys would be a cost-effective approach. The current study assessed whether the incorporation of a health campaign evaluation survey within a longitudinal attitudes and behaviours tracking survey produced different outcomes compared with the separate administration of the evaluation survey.Methods: Data were collected via an online panel, with 688 respondents completing the combined survey and 657 respondents completing the evaluation-only survey. Regression analyses were conducted to examine whether survey type was related to the campaign evaluation results.Results: Those who completed the combined survey perceived the campaign advertisement to be more personally relevant than those completing the evaluation-only survey. There were no differences in results relating to campaign awareness and reported behavioural change as a result of campaign exposure.Conclusions: There were minimal differences between results obtained from combining an attitude/behaviour tracking survey with a campaign evaluation survey. Any priming or order effects were limited to respondents' cognitive responses to the advertisement.So what?: The results suggest that health practitioners with limited resources available for tracking and evaluation research may be able to maximise outcomes by administering fewer, longer surveys.

  8. A critical assessment of the calculation and analysis of thermodynamic parameters from adsorption data

    OpenAIRE

    2015-01-01

    Proper analysis of thermodynamic parameters obtained from adsorption data is a basic requirement for the characterization and optimization of an adsorption-dependent process like the action of organic corrosion inhibitors. Thus, this work aims at presenting a critical assessment of typical flawed examples from the literature together with alternative good practice to be considered, for preference.

  9. Practice Parameter for the Assessment and Treatment of Children and Adolescents with Obsessive-Compulsive Disorder

    Science.gov (United States)

    Journal of the American Academy of Child & Adolescent Psychiatry, 2012

    2012-01-01

    Research in etiology, neurobiology, genetics, clinical correlates, and evidence-based treatments in children and adolescents with obsessive-compulsive disorder indicate a need for the revision of the Practice Parameters for the Assessment and Treatment of Children and Adolescents with Obsessive-Compulsive Disorder first published a decade ago. The…

  10. Assessment of epidemiological parameters and their use in epidemiological and forecasting models of cereal airborne diseases

    DEFF Research Database (Denmark)

    Vallavieille-Pope, C. de; Giosue, S.; Munk, L.

    2000-01-01

    Assessments of epidemiological parameters (e.g. infection efficiency, latent period, spore production) are required for the prediction of epidemic progress, for the estimation of components of partial resistance for different host plant cultivars and for the estimation of fitness components of pa...

  11. Assessment of epidemiological parameters and their use in epidemiological and forecasting models of cereal airborne diseases

    DEFF Research Database (Denmark)

    Vallavieille-Pope, C. de; Giosue, S.; Munk, L.

    2000-01-01

    Assessments of epidemiological parameters (e.g. infection efficiency, latent period, spore production) are required for the prediction of epidemic progress, for the estimation of components of partial resistance for different host plant cultivars and for the estimation of fitness components...

  12. Indoor environmental input parameters for the design and assessment of energy performance of buildings

    DEFF Research Database (Denmark)

    Olesen, Bjarne W.

    2015-01-01

    The first international standard that dealtwith all indoor environmental parameters (thermal comfort, air quality, lightingand acoustic) was published in 2007 asEN15251. This standard prescribed inputparameters for design and assessment ofenergy performance of buildings and was apart of the set...

  13. Practice Parameter for the Assessment and Treatment of Youth in Juvenile Detention and Correctional Facilities

    Science.gov (United States)

    Journal of the American Academy of Child and Adolescent Psychiatry, 2005

    2005-01-01

    This practice parameter presents recommendations for the mental health assessment and treatment of youths in juvenile detention and correctional facilities. Mental and substance-related disorders are significant public health problems affecting youths in juvenile justice settings. Sufficient time is necessary to conduct a comprehensive diagnostic…

  14. Practice Parameter for the Assessment and Treatment of Children and Adolescents with Obsessive-Compulsive Disorder

    Science.gov (United States)

    Journal of the American Academy of Child & Adolescent Psychiatry, 2012

    2012-01-01

    Research in etiology, neurobiology, genetics, clinical correlates, and evidence-based treatments in children and adolescents with obsessive-compulsive disorder indicate a need for the revision of the Practice Parameters for the Assessment and Treatment of Children and Adolescents with Obsessive-Compulsive Disorder first published a decade ago. The…

  15. Cesarean section indications and anthropometric parameters in Rwandan nulliparae: preliminary results from a longitudinal survey.

    Science.gov (United States)

    Kakoma, Jean-Baptiste

    2016-01-01

    Maternal anthropometric parameters as risk factors for cesarean section have always been a matter of interest and concern for obstetricians. Some of these parameters have been shown to be predictors of dystocia. This study aims at showing the relationship between cesarean section indications and anthropometric parameters sizes in Rwandan nulliparae for the purpose of comparison and appropriate recommendations. A cross-sectional and analytical study was made on data collected from 32 operated patients among 152 nulliparae with singleton pregnancy at term and vertex presentation. Concerned anthropometric parameters were height, weight and six pelvic distances. Fisher exact and Student's tests were used to compare observed proportions and mean values, respectively. Findings were as follows: 1) the overall cesarean section rate was 21.05%; 2) acute fetal distress (31.3 %), generally contracted pelvis (28.1 %), and engagement failure (25%) were the most frequent indications of cesarean section; 3) all patients ≤ 145 cm tall were operated on for general pelvis contraction whose proportion was significantly higher in them than in the others (p < 0.01); 4) more than half of pelvis contraction cases were observed in patients weighing ≤ 50 kg, but the difference with other weight categories was not significant; 5) considered external pelvic diameters but the Biiliac Diameter displayed average measurements smaller in clinically contracted pelvis than in other CS indications. External pelvimetry associated with specific other anthropometric parameters could be helpful in the screening of generally contracted pelves, and consequently pregnancies at high risk of cephalopelvic disproportion in nulliparous women, particularly in developing countries with limited resources. Further investigations are requested to deal with this topic in depth.

  16. Neutrino masses and cosmological parameters from a Euclid-like survey: Markov Chain Monte Carlo forecasts including theoretical errors

    CERN Document Server

    Audren, Benjamin; Bird, Simeon; Haehnelt, Martin G.; Viel, Matteo

    2013-01-01

    We present forecasts for the accuracy of determining the parameters of a minimal cosmological model and the total neutrino mass based on combined mock data for a future Euclid-like galaxy survey and Planck. We consider two different galaxy surveys: a spectroscopic redshift survey and a cosmic shear survey. We make use of the Monte Carlo Markov Chains (MCMC) technique and assume two sets of theoretical errors. The first error is meant to account for uncertainties in the modelling of the effect of neutrinos on the non-linear galaxy power spectrum and we assume this error to be fully correlated in Fourier space. The second error is meant to parametrize the overall residual uncertainties in modelling the non-linear galaxy power spectrum at small scales, and is conservatively assumed to be uncorrelated and to increase with the ratio of a given scale to the scale of non-linearity. It hence increases with wavenumber and decreases with redshift. With these two assumptions for the errors and assuming further conservat...

  17. Reliability, precision, and measurement in the context of data from ability tests, surveys, and assessments

    Energy Technology Data Exchange (ETDEWEB)

    Fisher, W P Jr [LivingCapitalMetrics.com 5252 Annunciation St, New Orleans, Louisiana 70115 (United States); Elbaum, B [University of Miami, Florida (United States); Coulter, A, E-mail: william@livingcapitalmetrics.co, E-mail: elbaum@miami.ed, E-mail: acoulter@lsuhsc.ed [Louisiana State University, New Orleans, Louisiana (United States)

    2010-07-01

    Reliability coefficients indicate the proportion of total variance attributable to differences among measures separated along a quantitative continuum by a testing, survey, or assessment instrument. Reliability is usually considered to be influenced by both the internal consistency of a data set and the number of items, though textbooks and research papers rarely evaluate the extent to which these factors independently affect the data in question. Probabilistic formulations of the requirements for unidimensional measurement separate consistency from error by modelling individual response processes instead of group-level variation. The utility of this separation is illustrated via analyses of small sets of simulated data, and of subsets of data from a 78-item survey of over 2,500 parents of children with disabilities. Measurement reliability ultimately concerns the structural invariance specified in models requiring sufficient statistics, parameter separation, unidimensionality, and other qualities that historically have made quantification simple, practical, and convenient for end users. The paper concludes with suggestions for a research program aimed at focusing measurement research more on the calibration and wide dissemination of tools applicable to individuals, and less on the statistical study of inter-variable relations in large data sets.

  18. Assessing Therapeutic Recreation Manpower: Guidelines for Using the Survey Questionnaire.

    Science.gov (United States)

    Goldstein, Judith E.; Verhoven, Peter J.

    The guide offers a framework for approaching the assessment process of recreation and leisure service delivery to handicapped children and youth by college/university faculty and administrators. Twenty-five questions regarding manpower assessment are answered, including the following: why is manpower assessment important and how is it usually…

  19. Surveying Assessment in Experiential Learning: A Single Campus Study

    Science.gov (United States)

    Yates, Thomas; Wilson, Jay; Purton, Kendra

    2015-01-01

    The purpose of this study was to determine the methods of experiential assessment in use at a Canadian university and the extent to which they are used. Exploring experiential assessment will allow identification of commonly used methods and facilitate the development of best practices of assessment in the context of experiential learning (EL) at…

  20. Using Bayesian hierarchical parameter estimation to assess the generalizability of cognitive models of choice.

    Science.gov (United States)

    Scheibehenne, Benjamin; Pachur, Thorsten

    2015-04-01

    To be useful, cognitive models with fitted parameters should show generalizability across time and allow accurate predictions of future observations. It has been proposed that hierarchical procedures yield better estimates of model parameters than do nonhierarchical, independent approaches, because the formers' estimates for individuals within a group can mutually inform each other. Here, we examine Bayesian hierarchical approaches to evaluating model generalizability in the context of two prominent models of risky choice-cumulative prospect theory (Tversky & Kahneman, 1992) and the transfer-of-attention-exchange model (Birnbaum & Chavez, 1997). Using empirical data of risky choices collected for each individual at two time points, we compared the use of hierarchical versus independent, nonhierarchical Bayesian estimation techniques to assess two aspects of model generalizability: parameter stability (across time) and predictive accuracy. The relative performance of hierarchical versus independent estimation varied across the different measures of generalizability. The hierarchical approach improved parameter stability (in terms of a lower absolute discrepancy of parameter values across time) and predictive accuracy (in terms of deviance; i.e., likelihood). With respect to test-retest correlations and posterior predictive accuracy, however, the hierarchical approach did not outperform the independent approach. Further analyses suggested that this was due to strong correlations between some parameters within both models. Such intercorrelations make it difficult to identify and interpret single parameters and can induce high degrees of shrinkage in hierarchical models. Similar findings may also occur in the context of other cognitive models of choice.

  1. On the assessment of the nature of open star clusters and the determination of their basic parameters with limited data

    Science.gov (United States)

    Carraro, Giovanni; Baume, Gustavo; Seleznev, Anton F.; Costa, Edgardo

    2017-07-01

    Our knowledge of stellar evolution and of the structure and chemical evolution of the Galactic disk largely builds on the study of open star clusters. Because of their crucial role in these relevant topics, large homogeneous catalogues of open cluster parameters are highly desirable. Although efforts have been made to develop automatic tools to analyse large numbers of clusters, the results obtained so far vary from study to study, and sometimes are very contradictory when compared to dedicated studies of individual clusters. In this work we highlight the common causes of these discrepancies for some open clusters, and show that at present dedicated studies yield a much better assessment of the nature of star clusters, even in the absence of ideal data-sets. We make use of deep, wide-field, multi-colour photometry to discuss the nature of six strategically selected open star clusters: Trumpler 22, Lynga 6, Hogg 19, Hogg 21, Pismis 10 and Pismis 14. We have precisely derived their basic parameters by means of a combination of star counts and photometric diagrams. Trumpler 22 and Lynga 6 are included in our study because they are widely known, and thus provided a check of our data and methodology. The remaining four clusters are very poorly known, and their available parameters have been obtained using automatic tools only. Our results are in some cases in severe disagreement with those from automatic surveys.

  2. Control of deterministic and stochastic systems with several small parameters - A survey

    Directory of Open Access Journals (Sweden)

    Vasile Dragan

    2009-07-01

    Full Text Available The past three decades of research on multiparametric singularly perturbed systems are reviewed, including recent results. Particular attention is paid to stability analysis, control, filtering problems and dynamic games. First, a parameter-independent design methodology is summarized, which employs a two-time-scale and descriptor system approach without information on the small parameters. Further, variational computational algorithms are included to avoid ill-conditioned systems : the exact slow-fast decomposition method, the recursive algorithm and Newton's method are considered in particular. Convergence results are presented and the existence and uniqueness of the solutions are discussed. Second, the new results obtained via the stochastic approach are presented. Finally, the results of a simulation of a practical power system are presented to validate the efficiency of the considered design methods.

  3. Needs Assessment Survey: Doing Business with China. Report.

    Science.gov (United States)

    Meuschke, Daylene M.; Gribbons, Barry C.

    Discusses industry interests in international trade and the need or desire for business training programs involving international trade at the College of the Canyons. A survey was conducted on industry representatives from the Santa Clarita Valley on their need for training on doing business in the Pacific Rim, mainly China. In January 2003, 577…

  4. Preventing intentional food contamination: a survey to assess restaurant preparedness.

    Science.gov (United States)

    Xirasagar, Sudha; Kanwat, C P; Qu, Haiyan; Smith, Lillian U; Patterson, Nathaniel J; Shewchuk, Richard M

    2010-01-01

    In the age of preparedness, public health agencies are concerned with intentional acts of food contamination in restaurants, in addition to food safety. Food safety consists of applying standard norms of practice and infrastructure, which, if violated, cause food-borne illness. In contrast, food defense requires an institutionalized mindset of informed alertness to unusual variations from the norms, combined with preemptive practices best suited to each restaurant. Therefore, while food safety lends itself to regulation to ensure standard practices, food defense is best served by advisory guidelines for autonomous application, preserving the restaurant industry's core values of hospitality and customer service. To address this challenge, public health agencies need survey tools that can yield action-relevant data on the knowledge and practice gaps in food defense preparedness and on educational messages and support services to be developed for maximum impact potential. This article presents a mail survey instrument, developed using qualitative research to ensure content and face validity. Instrument development involved drafting the survey on the basis of expert consultations, validating its content by using focus groups (representing all restaurant categories and geographic regions), and ensuring face validity through cognitive interviews. The resulting survey remains sensitive to the hospitality industry while encompassing all vulnerable points.

  5. A selection of hot subluminous stars in the GALEX survey II. Subdwarf atmospheric parameters

    CERN Document Server

    Németh, Péter; Vennes, Stéphane

    2012-01-01

    We present an update of our low-resolution spectroscopic follow-up and model atmosphere analysis of hot subdwarf stars from the Galaxy Evolution Explorer (GALEX) survey. Targets were selected on the basis of colour indices calculated from the GALEX GR6 N_UV, Guide Star Catalogue (GSC2.3.2) V and the Two Micron All Sky Survey (2MASS) J and H photometry. High signal-to-noise ratio spectra were obtained at the European Southern Observatory (ESO) and the Kitt Peak National Observatory (KPNO) over the course of three years. Detailed H, He and CNO abundance analysis helped us improve our T_eff, log g and He abundance determination and to constrain CNO abundances. We processed 191 observations of 180 targets and found 124 sdB and 42 sdO stars in this sample while some blue horizontal branch stars were also found in this programme. With quantitative binary decomposition of 29 composite spectra we investigated the incidence of A, F and G type companions. The incidence of late G and K type companions and their effects ...

  6. Assessing usual dietary intake in complex sample design surveys: the National Dietary Survey

    Directory of Open Access Journals (Sweden)

    Flávia dos Santos Barbosa

    2013-02-01

    Full Text Available The National Cancer Institute (NCI method allows the distributions of usual intake of nutrients and foods to be estimated. This method can be used in complex surveys. However, the user must perform additional calculations, such as balanced repeated replication (BRR, in order to obtain standard errors and confidence intervals for the percentiles and mean from the distribution of usual intake. The objective is to highlight adaptations of the NCI method using data from the National Dietary Survey. The application of the NCI method was exemplified analyzing the total energy (kcal and fruit (g intake, comparing estimations of mean and standard deviation that were based on the complex design of the Brazilian survey with those assuming simple random sample. Although means point estimates were similar, estimates of standard error using the complex design increased by up to 60% compared to simple random sample. Thus, for valid estimates of food and energy intake for the population, all of the sampling characteristics of the surveys should be taken into account because when these characteristics are neglected, statistical analysis may produce underestimated standard errors that would compromise the results and the conclusions of the survey.

  7. Assessment of evolutionary status of eclipsing binaries using light-curve parameters and spectral classification

    CERN Document Server

    Ekaterina, Avvakumova

    2014-01-01

    We have developed a procedure for the classification of eclipsing binaries from their light-curve parameters and spectral type. The procedure was tested on more than 1000 systems with known classification, and its efficiency was estimated for every evolutionary status we use. The procedure was applied to about 4700 binaries with no classification, and the vast majority of them was classified successfully. Systems of relatively rare evolutionary classes were detected in that process, as well as systems with unusual and/or contradictory parameters. Also, for 50 previously unclassified cluster binaries evolutionary classes were identified. These stars can serve as tracers for age and distance estimation of their parent stellar systems. The procedure proved itself as fast, flexible and effective enough to be applied to large ground based and space born surveys, containing tens of thousands of eclipsing binaries.

  8. APPLICATION OF PARAMETER CONTINUATION METHOD FOR INVESTIGATION OF VIBROIMPACT SYSTEMS DYNAMIC BEHAVIOUR. PROBLEM STATE. SHORT SURVEY OF WORLD SCIENTIFIC LITERATURE

    Directory of Open Access Journals (Sweden)

    V.A. Bazhenov

    2014-12-01

    Full Text Available Authors in their works study vibroimpact system dynamic behaviour by numerical parametric continuation technique combined with shooting and Newton-Raphson’s methods. The technique is adapted to two-mass two-degree-of-freedom vibroimpact system under periodic excitation. Impact is simulated by nonlinear contact interaction force based on Hertz’s contact theory. Stability or instability of obtained periodic solutions is determined by monodromy matrix eigenvalues (multipliers based on Floquet’s theory. In the present paper we describe the state of problem of parameter continuation method using for nonlinear tasks solution. Also we give the short survey of numerous contemporary literature in English and Russian about parameter continuation method application for nonlinear problems. This method is applied for vibroimpact problem solving more rarely because of the difficulties connected with repeated impacts.

  9. Global survey of star clusters in the Milky Way I. The pipeline and fundamental parameters in the second quadrant

    CERN Document Server

    Kharchenko, N V; Schilbach, E; Röser, S; Scholz, R -D

    2012-01-01

    Aims: On the basis of the PPMXL star catalogue we performed a survey of star clusters in the second quadrant of the Milky Way. Methods: From the PPMXL catalogue of positions and proper motions we took the subset of stars with near-infrared photometry from 2MASS and added the remaining 2MASS stars without proper motions (called 2MAst, i.e. 2MASS with astrometry). We developed a data-processing pipeline including interactive human control of a standardised set of multi-dimensional diagrams to determine kinematic and photometric membership probabilities for stars in a cluster region. The pipeline simultaneously produced the astrophysical parameters of a cluster. From literature we compiled a target list of presently known open and globular clusters, cluster candidates, associations, and moving groups. From established member stars we derived spatial parameters (coordinates of centres and radii of the main morphological parts of clusters) and cluster kinematics (average proper motions and sometimes radial velocit...

  10. Classroom Assessment Practices: A Survey of Botswana Primary and Secondary School Teachers

    Science.gov (United States)

    Koloi-Keaikitse, Setlhomo

    2012-01-01

    The Classroom Assessment Practices and Skills (CAPS) questionnaire was administered to a sample of 691 primary and secondary school teachers in Botswana, Southern Africa to survey their thoughts about classroom assessment and identify classroom assessment practices teachers perceive to be skilled and those that they used most. The study examined…

  11. Assessing Violence Risk and Psychopathy in Juvenile and Adult Offenders: A Survey of Clinical Practices

    Science.gov (United States)

    Viljoen, Jodi L.; McLachlan, Kaitlyn; Vincent, Gina M.

    2010-01-01

    This study surveyed 199 forensic clinicians about the practices that they use in assessing violence risk in juvenile and adult offenders. Results indicated that the use of risk assessment and psychopathy tools was common. Although clinicians reported more routine use of psychopathy measures in adult risk assessments compared with juvenile risks…

  12. Assessing the discriminating power of roughness parameters using a roughness databank

    Science.gov (United States)

    Bigerelle, M.; Marteau, J.; Blateyron, F.

    2017-06-01

    This article presents a methodology based on the use of a surface databank, which aims at assessing the discriminating power of 3D roughness parameters. The presented databank is composed of fourteen different sets of surfaces belonging to two main tribological categories: integrity and functionality. Each set of surface is composed of two classes, called A and B. These classes are obtained by varying process conditions or study parameters. The proposed methodology is first thoroughly described in the general case of comparing two classes of one set of 3D surfaces. Then, sandblasted surfaces are used as an example before applying the methodology to the entire database.

  13. Quantitatively assessed CT imaging measures of pulmonary interstitial pneumonia: Effects of reconstruction algorithms on histogram parameters

    Energy Technology Data Exchange (ETDEWEB)

    Koyama, Hisanobu [Department of Radiology, Hyogo Kaibara Hospital, 5208-1 Kaibara, Kaibara-cho, Tanba 669-3395 (Japan)], E-mail: hisanobu19760104@yahoo.co.jp; Ohno, Yoshiharu [Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017 (Japan)], E-mail: yosirad@kobe-u.ac.jp; Yamazaki, Youichi [Department of Medical Physics and Engineering, Faculty of Health Sciences, Graduate School of Medicine, Osaka University, 1-7 Yamadaoka, Suita 565-0871 (Japan)], E-mail: y.yamazk@sahs.med.osaka-u.ac.jp; Nogami, Munenobu [Division of PET, Institute of Biomedical Research and Innovation, 2-2 MInamimachi, Minatojima, Chu0-ku, Kobe 650-0047 (Japan)], E-mail: aznogami@fbri.org; Kusaka, Akiko [Division of Radiology, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017 (Japan)], E-mail: a.kusaka@hosp.kobe-u.ac.jp; Murase, Kenya [Department of Medical Physics and Engineering, Faculty of Health Sciences, Graduate School of Medicine, Osaka University, 1-7 Yamadaoka, Suita 565-0871 (Japan)], E-mail: murase@sahs.med.osaka-u.ac.jp; Sugimura, Kazuro [Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017 (Japan)], E-mail: sugimura@med.kobe-u.ac.jp

    2010-04-15

    This study aimed the influences of reconstruction algorithm for quantitative assessments in interstitial pneumonia patients. A total of 25 collagen vascular disease patients (nine male patients and 16 female patients; mean age, 57.2 years; age range 32-77 years) underwent thin-section MDCT examinations, and MDCT data were reconstructed with three kinds of reconstruction algorithm (two high-frequencies [A and B] and one standard [C]). In reconstruction algorithm B, the effect of low- and middle-frequency space was suppressed compared with reconstruction algorithm A. As quantitative CT parameters, kurtosis, skewness, and mean lung density (MLD) were acquired from a frequency histogram of the whole lung parenchyma in each reconstruction algorithm. To determine the difference of quantitative CT parameters affected by reconstruction algorithms, these parameters were compared statistically. To determine the relationships with the disease severity, these parameters were correlated with PFTs. In the results, all the histogram parameters values had significant differences each other (p < 0.0001) and those of reconstruction algorithm C were the highest. All MLDs had fair or moderate correlation with all parameters of PFT (-0.64 < r < -0.45, p < 0.05). Though kurtosis and skewness in high-frequency reconstruction algorithm A had significant correlations with all parameters of PFT (-0.61 < r < -0.45, p < 0.05), there were significant correlations only with diffusing capacity of carbon monoxide (DLco) and total lung capacity (TLC) in reconstruction algorithm C and with forced expiratory volume in 1 s (FEV1), DLco and TLC in reconstruction algorithm B. In conclusion, reconstruction algorithm has influence to quantitative assessments on chest thin-section MDCT examination in interstitial pneumonia patients.

  14. A Survey of Functional Behavior Assessment Methods Used by Behavior Analysts in Practice

    Science.gov (United States)

    Oliver, Anthony C.; Pratt, Leigh A.; Normand, Matthew P.

    2015-01-01

    To gather information about the functional behavior assessment (FBA) methods behavior analysts use in practice, we sent a web-based survey to 12,431 behavior analysts certified by the Behavior Analyst Certification Board. Ultimately, 724 surveys were returned, with the results suggesting that most respondents regularly use FBA methods, especially…

  15. The Laboratory Course Assessment Survey: A Tool to Measure Three Dimensions of Research-Course Design

    Science.gov (United States)

    Corwin, Lisa A.; Runyon, Christopher; Robinson, Aspen; Dolan, Erin L.

    2015-01-01

    Course-based undergraduate research experiences (CUREs) are increasingly being offered as scalable ways to involve undergraduates in research. Yet few if any design features that make CUREs effective have been identified. We developed a 17-item survey instrument, the Laboratory Course Assessment Survey (LCAS), that measures students' perceptions…

  16. Global survey of star clusters in the Milky Way II. The catalogue of basic parameters

    CERN Document Server

    Kharchenko, N V; Schilbach, E; Röser, S; Scholz, R -D

    2013-01-01

    Although they are the main constituents of the Galactic disk population, for half of the open clusters in the Milky Way reported in the literature nothing is known except the raw position and an approximate size. The main goal of this study is to determine a full set of uniform spatial, structural, kinematic, and astrophysical parameters for as many known open clusters as possible. On the basis of stellar data from PPMXL and 2MASS, we used a dedicated data-processing pipeline to determine kinematic and photometric membership probabilities for stars in a cluster region. For an input list of 3784 targets from the literature, we confirm that 3006 are real objects, the vast majority of them are open clusters, but associations and globular clusters are also present. For each confirmed object we determined the exact position of the cluster centre, the apparent size, proper motion, distance, colour excess, and age. For about 1500 clusters, these basic astrophysical parameters have been determined for the first time....

  17. Counselors' Use of Functional Assessment: A Survey of Pennsylvania Counselors.

    Science.gov (United States)

    Lane, Mildred D.

    As people with disabilities are becoming more included in society, professional counselors are required to develop skills and identify tools to assess, counsel, and advocate for these clients. This article presents Pennsylvania counselors' definition of functional assessment and procedures, techniques, and instruments currently in use. Most…

  18. Peaks in the cosmological density field: parameter constraints from 2dF Galaxy Redshift Survey data

    CERN Document Server

    De, S

    2009-01-01

    We use the number density of peaks in the smoothed cosmological density field taken from the 2dF Galaxy Redshift Survey to constrain parameters related to the power spectrum of mass fluctuations, n (the spectral index), dn/d(lnk) (rolling in the spectral index), and the neutrino mass, m_nu. In a companion paper we use N-body simulations to study how the peak density responds to changes in the power spectrum, the presence of redshift distortions and the relationship between galaxies and dark matter halos. In the present paper we make measurements of the peak density from 2dF Galaxy Redshift Survey data, for a range of smoothing filter scales from 4-33 h^-1 Mpc. We use these measurements to constrain the cosmological parameters, finding n=1.36 (+0.75)(-0.64), m_nu < 1.76 eV, dn/d(lnk)=-0.012 (+0.192)(-0.208), at the 68 % confidence level, where m_nu is the total mass of three massive neutrinos. At 95% confidence we find m_nu< 2.48 eV. These measurements represent an alternative way to constrain cosmologic...

  19. Consequences of CCD imperfections for cosmology determined by weak lensing surveys: From laboratory measurements to cosmological parameter bias

    CERN Document Server

    Okura, Yuki; May, Morgan; Plazas, Andrés A; Tamagawa, Toru

    2016-01-01

    Weak gravitational lensing causes subtle changes in the apparent shapes of galaxies due to the bending of light by the gravity of foreground masses. By measuring the shapes of large numbers of galaxies (millions in recent surveys, up to tens of billions in future surveys) we can infer the parameters that determine cosmology. Imperfections in the detectors used to record images of the sky can introduce changes in the apparent shape of galaxies, which in turn can bias the inferred cosmological parameters. In this paper we consider the effect of two widely discussed sensor imperfections: tree-rings, due to impurity gradients which cause transverse electric fields in the Charge-Coupled Devices (CCD), and pixel-size variation, due to periodic CCD fabrication errors. These imperfections can be observed when the detectors are subject to uniform illumination (flat field images). We develop methods to determine the spurious shear and convergence (due to the imperfections) from the flat-field images. We calculate how t...

  20. Mining Branching Rules from Past Survey Data with an Illustration Using a Geriatric Assessment Survey for Older Adults with Cancer

    Directory of Open Access Journals (Sweden)

    Daniel R. Jeske

    2016-05-01

    Full Text Available We construct a fast data mining algorithm that can be used to identify high-frequency response patterns in historical surveys. Identification of these patterns leads to the derivation of question branching rules that shorten the time required to complete a survey. The data mining algorithm allows the user to control the error rate that is incurred through the use of implied answers that go along with each branching rule. The context considered is binary response questions, which can be obtained from multi-level response questions through dichotomization. The algorithm is illustrated by the analysis of four sections of a geriatric assessment survey used by oncologists. Reductions in the number of questions that need to be asked in these four sections range from 33% to 54%.

  1. The impact of various assessment parameters on medical students′ performance in first professional examination in physiolog

    Directory of Open Access Journals (Sweden)

    Olasupo Stephen Adeniyi

    2013-01-01

    Full Text Available Background: This study was carried out to assess the relationship between thevarious assessment parameters, viz. continuous assessment (CA, multiple choice questions (MCQ, essay, practical, oral with the overall performance in the first professional examination in Physiology. Materials and Methods: The results of all 244 students that sat for the examination over 4 years were used. The CA, MCQ, essay, practical, oral and overall performance scores were obtained. All the scores were rounded up to 100% to give each parameter equal weighting. Results: Analysis showed that the average overall performance was 50.8 ± 5.3. The best average performance was in practical (55.5 ± 9.1, while the least was in MCQ (44.1 ± 7.8. In the study, 81.1% of students passed orals, 80.3% passed practical, 72.5% passed CA, 58.6% passed essay, 22.5% passed MCQ and 71.7% of students passed on the overall performance. All assessment parameters significantly correlated with overall performance. Continuous assessment had the best correlation (r = 0.801, P = 0.000, while oral had the least correlation (r = 0.277, P = 0.000 with overall performance. Essay was the best predictor of overall performance (β = 0.421, P = 000, followed by MCQ (β = 0.356, P = 000, while practical was the least predictor of performance (β = 0.162, P = 000. Conclusion: We suggest that the department should uphold the principle of continuous assessment and more effort be made in the design of MCQ so that performance can improve.

  2. Survey of Saccadic Parameters Using Videonystagmography in Patients with Idiopathic Parkinson's Disease and Normal Subjects

    Directory of Open Access Journals (Sweden)

    Reza Hosseinabadi

    2008-06-01

    Full Text Available Background and Aim: Patients with Parkinson’s disease manifest oculomotor abnormalities. This is the consequence of basal ganglia impairment. The most common abnormalities include increased saccade latency, hypometric saccades and decreased saccade velocity. The purpose of this study was comparison of saccadic parameters using videonystagmography in patients with idiopathic Parkinson’s disease and normal subjects.Materials and Methods: In this cross sectional study, saccadic movements were investigated in thirty patients with idiopathic Parkinson’s disease and thirty age matched subjects were 35-70 years old. Saccade latency, velocity and accuracy were quantitatively analyzed. Results: Results of this study indicated increased saccade latency, reduction of saccade velocity and accuracy in patients with Parkinson’s disease(P<0.001.Conclusion: This study showed that patients with Parkinson’s disease manifest saccadic deficits. This suggests dopaminergic control of these ocular movements.

  3. EPR-based, quality-related process parameters: a nationwide assessment.

    Science.gov (United States)

    De Clercq, E; Van Casteren, V; Bossuyt, N; Goderis, G; Moreels, S

    2014-01-01

    The aim of the study was to determine whether or not primary care EPR-based data can be used to measure specific process parameters that can then, in turn, be used to assess the quality of care provided to chronic patients. We analysed data from a large research network that collects data from all Belgian GP practices through both manual and automatic extraction procedures. We built a number of quality-related process parameters and observed the concordance of our results with two external databases: a nationwide reimbursement database and a regional EPR-based network. We found that only the automatic data extraction method was suitable for building process parameters. The current research network may lead to an underestimation of the quality of care processes. We suggested ways to improve this network.

  4. REMAINING LIFE ASSESSMENT OF A 1Cr5Mo STEEL BY USING Z-PARAMETER METHOD

    Institute of Scientific and Technical Information of China (English)

    J. Zhao; S.Q. Han; S.M. Xie; H.B. Gao; L. Wang

    2004-01-01

    Z-parameter method based on the Larson-Miller relationship is proposed to assess remaining life of a 1Cr5Mo steel. The non-linear master curve of stress σ vs. LarsonMiller parameter P of the steel can be expressed as: P=29.608-5.0851ogσ. A family of curves parallel to the master curve can be expressed as: P=29.608-Z-5.0851ogσ,where the value of Z represents the magnitude deviated from the master curve. A relationship between the value of Z-parameter and the level of spheroidization E (microstructural degradation) can be expressed as: Z=0.203(E-1).

  5. A Comparative Survey on Parameters Influencing on Hexavalent Chromium Measurement as an Occupational Carcinogen

    Directory of Open Access Journals (Sweden)

    A. Tirgar

    2008-07-01

    Full Text Available Introduction & Objective: Hexavalent chromium, Cr+6, is a very harmful pollutant and a relatively unstable compound that is present in many industries. It is a known human respiratory carcinogen and occupational exposure to this chemical is associated with different health hazards. The purpose of this study was to evaluate the effects of four parameters including: type of sampling head, sampling height from the surface of electroplating solution, sampling duration, and sample storage duration on Cr+6 mist monitoring.Materials & Methods: To evaluate the influence of the main parameters as an experimental study, the 24 factorial design was applied at constant electroplating condition. A chromium electroplating bath with the ability to produce homogenous mist was used to create Cr+6 mist in laboratory setting. The National Institute for Occupational Safety and Health (NIOSH method 7600 was used to determine the Cr+6 concentration. Results: The results of 48 Cr+6 mist samples showed that Cr+6 concentration was higher: (1 for sampling by closed-face filter cassettes than for sampling by open-face filter cassettes (P<0.001; (2 for samples collected at 35 cm above the electroplating solution surface than for samples collected at 50 cm (P <0.001; (3 for sampling duration of 30 minutes than for sampling duration of 180 minutes (P <0.001; and, (4 for samples extracted immediately after sampling than for samples with delayed extraction (24 hours after sampling (P <0.001. Conclusion: It is concluded that the accuracy of Cr+6 mist sampling in electroplating shops will be enhanced when: (1 a closed-face filter cassette is used to prevent liquid splash contamination; (2 the sampling height is suitable as determined by further research; (3 the sampling duration is short (approximately 30 minutes; and, (4 the extraction of the Cr+6 sample is performed as soon as the sampling is completed.

  6. Cosmological Parameters from the Comparison of the 2MASS Gravity Field with Peculiar Velocity Surveys

    CERN Document Server

    Pike, R W; Hudson, Michael J.

    2005-01-01

    We compare the peculiar velocity field within 65 $h^{-1}$ Mpc predicted from 2MASS photometry and public redshift data to three independent peculiar velocity surveys based on type Ia supernovae, surface brightness fluctuations in ellipticals, and Tully-Fisher distances to spirals. The three peculiar velocity samples are each in good agreement with the predicted velocities and produce consistent results for $\\beta_{K}=\\Omega\\sbr{m}^{0.6}/b_{K}$. Taken together the best fit $\\beta_{K} = 0.49 \\pm 0.04$. We explore the effects of morphology on the determination of $\\beta$ by splitting the 2MASS sample into E+S0 and S+Irr density fields and find both samples are equally good tracers of the underlying dark matter distribution, but that early-types are more clustered by a relative factor $b\\sbr{E}/b\\sbr{S} \\sim 1.6$. The density fluctuations of 2MASS galaxies in $8 h^{-1}$ Mpc spheres in the local volume is found to be $\\sigma\\sbr{8,K} = 0.9$. From this result and our value of $\\beta_{K}$, we find $\\sigma_8 (\\Omega\\...

  7. Context management: toward assessing quality of context parameters in a ubiquitous ambient assisted living environment

    Directory of Open Access Journals (Sweden)

    Débora Cabral Nazário

    2015-09-01

    Full Text Available This paper provides an approach to assessing Quality of Context (QoC parameters in a ubiquitous Ambient Assisted Living (AAL environment. Initially, the study presents a literature review on QoC, generating taxonomy. Then it introduces the context management architecture used. The proposal is verified with the Siafu simulator in an AAL scenario where the user’s health is monitored with information about blood pressure, heart rate and body temperature. Considering some parameters, the proposed QoC assessment allows verifying the extent to which the context information is up-to-date, valid, accurate, complete and significant. The implementation of this proposal might mean a big social impact and a technological innovation applied to AAL, at the disposal and support of a significant number of individuals such as elderly or sick people, and with a more precise technology.

  8. Survey of the main parameters necessary for the dimensioning of three phase gravitational separators; Levantamento dos principais parametros necessarios ao dimensionamento de separadores gravitacionais trifasicos

    Energy Technology Data Exchange (ETDEWEB)

    Ramalho, Joao Batista Vianey da Silva [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2000-07-01

    The performance of gravitation separation of water from oil, in water-oil type emulsions depends greatly on the temperature and the time of segregation, as well as on the nature of the oil and on the quality of the demulsifying product used. Based on the methodology developed herein, these two parameters have been lab assessed, by initially defining the temperature range for these tests to be carried out, then obtaining the synthetic emulsions and, finally, carrying out the tests to determine the water-oil separation performance as a function of the temperature and of the test duration. Based on the results obtained, performance curves are surveyed, and said curves are able to predict the behavior of the water-oil gravitation segregation. (author)

  9. Surgeon Reported Outcome Measure for Spine Trauma an International Expert Survey Identifying Parameters Relevant for The Outcome of Subaxial Cervical Spine Injuries

    NARCIS (Netherlands)

    Sadiqi, Said; Verlaan, Jorrit Jan; Lehr, A. M.; Dvorak, Marcel F.; Kandziora, Frank; Rajasekaran, S.; Schnake, Klaus J.; Vaccaro, Alexander R.; Oner, F. C.

    2016-01-01

    STUDY DESIGN.: International web-based survey OBJECTIVE.: To identify clinical and radiological parameters that spine surgeons consider most relevant when evaluating clinical and functional outcomes of subaxial cervical spine trauma patients. SUMMARY OF BACKGROUND DATA.: While an outcome instrument

  10. Surgeon Reported Outcome Measure for Spine Trauma an International Expert Survey Identifying Parameters Relevant for The Outcome of Subaxial Cervical Spine Injuries

    NARCIS (Netherlands)

    Sadiqi, Said; Verlaan, Jorrit Jan; Lehr, A. M.; Dvorak, Marcel F.; Kandziora, Frank; Rajasekaran, S.; Schnake, Klaus J.; Vaccaro, Alexander R.; Oner, F. C.

    2016-01-01

    STUDY DESIGN.: International web-based survey OBJECTIVE.: To identify clinical and radiological parameters that spine surgeons consider most relevant when evaluating clinical and functional outcomes of subaxial cervical spine trauma patients. SUMMARY OF BACKGROUND DATA.: While an outcome instrument

  11. Review and analysis of parameters for assessing transport of environmentally released radionuclides through agriculture

    Energy Technology Data Exchange (ETDEWEB)

    Baes, C.F. III; Sharp, R.D.; Sjoreen, A.L.; Shor, R.W.

    1984-09-01

    Most of the default parameters incorporated into the TERRA computer code are documented including a literature review and systematic analysis of element-specific transfer parameters B/sub v/, B/sub r/, F/sub m/, F/sub f/, and K/sub d/. This review and analysis suggests default values which are consistent with the modeling approaches taken in TERRA and may be acceptable for most assessment applications of the computer code. However, particular applications of the code and additional analysis of elemental transport may require alternative default values. Use of the values reported herein in other computer codes simulating terrestrial transport is not advised without careful interpretation of the limitations and scope these analyses. An approach to determination of vegetation-specific interception fractions is also discussed. The limitations of this approach are many, and its use indicates the need for analysis of deposition, interception, and weathering processes. Judgement must be exercised in interpretation of plant surface concentrations generated. Finally, the location-specific agricultural, climatological, and population parameters in the default SITE data base documented. These parameters are intended as alternatives to average values currently used. Indeed, areas in the United States where intensive crop, milk, or beef production occurs will be reflected in the parameter values as will areas where little agricultural activity occurs. However, the original information sources contained some small error and the interpolation and conversion methods used will add more. Parameters used in TERRA not discussed herein are discussed in the companion report to this one - ORNL-5785. In the companion report the models employed in and the coding of TERRA are discussed. These reports together provide documentation of the TERRA code and its use in assessments. 96 references, 78 figures, 21 tables.

  12. Assessment of Governor Control Parameter Settings of a Submarine Diesel Engine

    Science.gov (United States)

    2013-03-01

    University of Technology 15. Ogata , K. (1997) Modern control engineering. Upper Saddle River, NJ, Prentice-Hall 16. DiStephano, J., Stubberud, A. and...UNCLASSIFIED Assessment of Governor Control Parameter Settings of a Submarine Diesel Engine Peter Hield and Michael Newman...generators to provide power for propulsion and the hotel load. The governor, often a proportional-integral controller , attempts to maintain a constant

  13. Assessment parameters for a novel simulator in minimally invasive spine surgery.

    Science.gov (United States)

    Fuerst, David; Hollensteiner, Marianne; Schrempf, Andreas

    2015-01-01

    Surgical simulators provide a safe environment where novice surgeons can acquire their surgical skills. Although the number of patients with diseases of the musculoskeletal system is growing, the development of orthopedic simulators is still in it's infancy. The aim of this work was to identify simulation-based assessment parameters for a novel simulator in minimally invasive spine surgery. Apart from parameters targeting the duration and the surgeon's economy of motion during percutaneous bone access, parameters characterizing the movement smoothness were also examined with respect to their suitability. The results indicated, that the overall duration, the number of instrument movements, the number of velocity peaks and the Movement Arrest Period Ratio are the most promising predictors of expertise. Targeting performance improvement, the overall duration (p = 0.001), the number of instrument movements (p = 0.003) and the traveled instrument path length (p = 0.009) detected significant differences between subsequent trials. Using these parameters, a study can be designed targeting the validity and reliability of the simulation-based assessment.

  14. Nondestructive Technique Survey for Assessing Integrity of Composite Firing Vessel

    Energy Technology Data Exchange (ETDEWEB)

    Tran, A.

    2000-08-01

    The repeated use and limited lifetime of a composite tiring vessel compel a need to survey techniques for monitoring the structural integrity of the vessel in order to determine when it should be retired. Various nondestructive techniques were researched and evaluated based on their applicability to the vessel. The methods were visual inspection, liquid penetrant testing, magnetic particle testing, surface mounted strain gauges, thermal inspection, acoustic emission, ultrasonic testing, radiography, eddy current testing, and embedded fiber optic sensors. It was determined that embedded fiber optic sensor is the most promising technique due to their ability to be embedded within layers of composites and their immunity to electromagnetic interference.

  15. Key pluvial parameters in assessing rainfall erosivity in the south-west development region, Romania

    Indian Academy of Sciences (India)

    Monica Dumitraşcu; Carmen-Sofia Dragotă; Ines Grigorescu; Costin Dumitraşcu; Alina Vlăduţ

    2017-06-01

    Located in the south-western part of Romania, the south-west development region overlaps the main relief forms: the Carpathians mountains, the Getic Subcarpathians, the Getic piedmont, the Romanian plain and the Danube valley. The study aims at providing an overview on the main pluvial parameters and their role in assessing rainfall erosivity in the study area. The authors assessed the occurrence, frequency and magnitude of some of the most significant pluvial parameters and their impact on the climatic aggressiveness in the study area. Thus, the monthly and annual mean and extreme climatic values for different rainfall related parameters (e.g., maximum amounts of precipitation/24 hr, heavy rainfall), as well as relevant indices and indicators for pluvial aggressiveness (Fournier, Fournier Modified, Angot) were calculated. The rainfall erosivity was assessed in order to provide both the spatial distribution of the triggering extreme weather phenomena and the resulted intensity classes for the analysed indices and indicators. The authors used long-term precipitation records (1961–2010) for the selected relevant meteorological stations distributed throughout all analysed relief units.

  16. Surveys from inside: An assessment of unit nonresponse bias with internal criteria

    Directory of Open Access Journals (Sweden)

    Ulrich Kohler

    2007-06-01

    Full Text Available The article uses the so called “internal criteria of representativeness” to assess the unit nonresponse bias in five European comparative survey projects. It then goes on investigating several ideas why unit nonresponse bias might vary between surveys and countries. It is proposed that unit nonresponse bias is either caused by country characteristics or survey methodology. The empirical evidence presented speaks more in favour of the latter than of the former. Among the survey characteristics the features that strengthen the leverage to control interviewers’ behaviour have top priority

  17. Peculiar velocities into the next generation: cosmological parameters from large surveys without bias from non-linear structure

    Science.gov (United States)

    Abate, Alexandra; Bridle, Sarah; Teodoro, Luis F. A.; Warren, Michael S.; Hendry, Martin

    2008-10-01

    We investigate methods to best estimate the normalization of the mass density fluctuation power spectrum (σ8) using peculiar velocity data from a survey like the six-degree Field Galaxy Velocity Survey (6dFGSv). We focus on two potential problems: (i) biases from non-linear growth of structure and (ii) the large number of velocities in the survey. Simulations of ΛCDM-like models are used to test the methods. We calculate the likelihood from a full covariance matrix of velocities averaged in grid cells. This simultaneously reduces the number of data points and smoothes out non-linearities which tend to dominate on small scales. We show how the averaging can be taken into account in the predictions in a practical way, and show the effect of the choice of cell size. We find that a cell size can be chosen that significantly reduces the non-linearities without significantly increasing the error bars on cosmological parameters. We compare our results with those from a principal components analysis following Watkins et al. and Feldman et al. to select a set of optimal moments constructed from linear combinations of the peculiar velocities that are least sensitive to the non-linear scales. We conclude that averaging in grid cells performs equally well. We find that for a survey such as 6dFGSv we can estimate σ8 with less than 3 per cent bias from non-linearities. The expected error on σ8 after marginalizing over Ωm is approximately 16 per cent.

  18. A systematic survey in Arabidopsis thaliana of transcription factors that modulate circadian parameters

    Directory of Open Access Journals (Sweden)

    Merkle Thomas

    2008-04-01

    Full Text Available Abstract Background Plant circadian systems regulate various biological processes in harmony with daily environmental changes. In Arabidopsis thaliana, the underlying clock mechanism is comprised of multiple integrated transcriptional feedbacks, which collectively lead to global patterns of rhythmic gene expression. The transcriptional networks are essential within the clock itself and in its output pathway. Results Here, to expand understanding of transcriptional networks within and associated to the clock, we performed both an in silico analysis of transcript rhythmicity of transcription factor genes, and a pilot assessment of functional phenomics on the MYB, bHLH, and bZIP families. In our in silico analysis, we defined which members of these families express a circadian waveform of transcript abundance. Up to 20% of these families were over-represented as clock-controlled genes. To detect members that contribute to proper oscillator function, we systematically measured rhythmic growth via an imaging system in hundreds of misexpression lines targeting members of the transcription-factor families. Three transcription factors were found that conferred aberrant circadian rhythms when misexpressed: MYB3R2, bHLH69, and bHLH92. Conclusion Transcript abundance of many transcription factors in Arabidopsis oscillates in a circadian manner. Further, a developed pipeline assessed phenotypic contribution of a panel of transcriptional regulators in the circadian system.

  19. Neutrino masses and cosmological parameters from a Euclid-like survey: Markov Chain Monte Carlo forecasts including theoretical errors

    Energy Technology Data Exchange (ETDEWEB)

    Audren, Benjamin; Lesgourgues, Julien [Institut de Théorie des Phénomènes Physiques, École PolytechniqueFédérale de Lausanne, CH-1015, Lausanne (Switzerland); Bird, Simeon [Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ, 08540 (United States); Haehnelt, Martin G. [Kavli Institute for Cosmology and Institute of Astronomy, Madingley Road, Cambridge, CB3 0HA (United Kingdom); Viel, Matteo, E-mail: benjamin.audren@epfl.ch, E-mail: julien.lesgourgues@cern.ch, E-mail: spb@ias.edu, E-mail: haehnelt@ast.cam.ac.uk, E-mail: viel@oats.inaf.it [INAF/Osservatorio Astronomico di Trieste, Via Tiepolo 11, 34143, Trieste (Italy)

    2013-01-01

    We present forecasts for the accuracy of determining the parameters of a minimal cosmological model and the total neutrino mass based on combined mock data for a future Euclid-like galaxy survey and Planck. We consider two different galaxy surveys: a spectroscopic redshift survey and a cosmic shear survey. We make use of the Monte Carlo Markov Chains (MCMC) technique and assume two sets of theoretical errors. The first error is meant to account for uncertainties in the modelling of the effect of neutrinos on the non-linear galaxy power spectrum and we assume this error to be fully correlated in Fourier space. The second error is meant to parametrize the overall residual uncertainties in modelling the non-linear galaxy power spectrum at small scales, and is conservatively assumed to be uncorrelated and to increase with the ratio of a given scale to the scale of non-linearity. It hence increases with wavenumber and decreases with redshift. With these two assumptions for the errors and assuming further conservatively that the uncorrelated error rises above 2% at k = 0.4 h/Mpc and z = 0.5, we find that a future Euclid-like cosmic shear/galaxy survey achieves a 1-σ error on M{sub ν} close to 32 meV/25 meV, sufficient for detecting the total neutrino mass with good significance. If the residual uncorrelated errors indeed rises rapidly towards smaller scales in the non-linear regime as we have assumed here then the data on non-linear scales does not increase the sensitivity to the total neutrino mass. Assuming instead a ten times smaller theoretical error with the same scale dependence, the error on the total neutrino mass decreases moderately from σ(M{sub ν}) = 18 meV to 14 meV when mildly non-linear scales with 0.1 h/Mpc < k < 0.6 h/Mpc are included in the analysis of the galaxy survey data.

  20. U.S. Geological Survey assessments of continuous (unconventional) oil and gas resources, 2000 to 2011

    Science.gov (United States)

    ,

    2015-10-20

    From 2000 to 2011, the U.S. Geological Survey conducted 139 quantitative assessments of continuous (unconventional) oil and gas accumulations within the United States. This report documents those assessments more fully than previously done by providing detailed documentation of both the assessment input and output. This report also compiles the data into spreadsheet tables that can be more readily used to provide analogs for future assessments, especially for hypothetical continuous accumulations.

  1. Assessment of Some Immune Parameters in Occupationally Exposed Nuclear Power Plants Workers

    Science.gov (United States)

    Panova, Delyana; Djounova, Jana; Rupova, Ivanka; Penkova, Kalina

    2015-01-01

    The purpose of this article is to analyze the results of a 10-year survey of the radiation effects of some immune parameters of occupationally exposed personnel from the Nuclear Power Plant “Kozloduy”, Bulgaria. 438 persons working in NPP with cumulative doses between 0.06 mSv and 766.36mSv and a control group with 65 persons were studied. Flow cytometry measurements of T, B, natural killer (NK) and natural killer T (NKT) cell lymphocyte populations were performed. Data were interpreted with regard to cumulative doses, length of service and age. The average values of the studied parameters of cellular immunity were in the reference range relative to age and for most of the workers were not significantly different from the control values. Low doses of ionizing radiation showed some trends of change in the number of CD3+CD4+ helper-inducer lymphocytes, CD3+ CD8+ and NKT cell counts. The observed changes in some of the studied parameters could be interpreted in terms of adaptation processes at low doses. At doses above 100–200 mSv, compensatory mechanisms might be involved to balance deviations in lymphocyte subsets. The observed variations in some cases could not be attributed only to the radiation exposure because of the impact of a number of other exogenous and endogenous factors on the immune system. PMID:26675014

  2. The HST/ACS Coma Cluster Survey III. Structural Parameters of Galaxies using single-S\\'ersic Fits

    CERN Document Server

    Hoyos, Carlos; Kleijn, Gijs Verdoes; Carter, David; Balcells, Marc; Guzman, Rafael; Peletier, Reynier; Ferguson, Henry C; Goudfrooij, Paul; Graham, Alister W; Hammer, Derek; Karick, Arna M; Lucey, John R; Matkovic, Ana; Merritt, David; Mouhcine, Mustapha; Valentijn, Edwin

    2010-01-01

    We present a catalogue of structural parameters for 8814 galaxies in the 25 fields of the HST/ACS Coma Treasury Survey. Parameters from S\\'ersic fits to the two-dimensional surface brightness distributions are given for all galaxies from our published Coma photometric catalogue with mean effective surface brightness brighter than 26.0 mag/sq. arcsec and brighter than 24.5 mag (equivalent to absolute magnitude - 10.5), as given by the fits, all in F814W(AB). The sample comprises a mixture of Coma members and background objects; 424 galaxies have redshifts and of these 163 are confirmed members. The fits were carried out using both the Gim2D and Galfit codes. We provide the following parameters: Galaxy ID, RA, DEC, the total corrected automatic magnitude from the photometric catalogue, the total magnitude of the model (F814W_AB), the geometric mean effective radius Re, the mean surface brightness within the effective radius _e, the S\\'ersic index n, the ellipticity and the source position angle. The selection l...

  3. An organizational survey of the Strategic Petroleum Reserve. [Organizational survey in preparation for an upcoming Tiger Team Assessment

    Energy Technology Data Exchange (ETDEWEB)

    Shurberg, D.A.; Haber, S.B.

    1992-01-01

    At the request of the management of the Strategic Petroleum Reserve (SPR), an Organizational Survey (OS), identical to the one that has been used prior to Tiger Team Assessments at other Department Energy facilities, was administered at SPR independent of a Tiger Team Assessment. The OS measured employees' opinions on subjects such as organizational culture, communication, commitment, group cohesion, coordination, safety, environmental issues, and job satisfaction. The result of this work was a quantitative measure of these variables at the SPR site. SPR management intends to utilize these results in their self-assessment process in preparation for an upcoming Tiger Team Assessment. This report presents these results and discusses their interpretation.

  4. Fatty liver and light manual labor: an epidemiological survey in Tianjin by controlled attenuation parameter

    Directory of Open Access Journals (Sweden)

    LI Hai

    2015-07-01

    Full Text Available Objective To investigate the incidence and possible related factors for fatty liver among workers engaged in light manual labor in Tianjin, China. Methods Among 800 healthy workers engaged in light manual labor randomly selected from a company in Tianjin, a total of 602 healthy workers completed physical examination and data collection. The content of fat and liver stiffness were determined by controlled attenuation parameter (CAP using FibroScan, and the disease history, body mass, height, blood pressure, and living habits in all subjects were investigated. The possible related factors for different degrees of fatty liver were analyzed. Between-group comparison of continuous data was performed using the Kruskal-Wallis H test, and comparison of categorical data was performed using χ2 test with row×column tables. Pairwise comparison was performed using χ2 segmentation method, and the agreement between CAP and color ultrasound was analyzed using the Kappa coefficient. Results Among the 602 subjects, there were 180 (29.9%, 195 (32.3%, and 227 (37.7% subjects with severe fatty liver, moderate fatty liver, and no fatty liver, respectively. There were significant differences in age, body mass index, waist-hip ratio, smoking, drinking, history of diabetes, and family history between the above three groups according to CAP (P<0.05 for all. With higher sensitivity, CAP achieved a significantly higher detection rate of fatty liver than traditional color ultrasound (62.3% vs 44.0%, P=0.000. The agreement between two methods was poor (Kappa value <0.4. Conclusion Among the so-called “healthy people” engaged in light manual labor, the incidence of fatty liver has exceeded 60%, which is associated with body mass index, waist-hip ratio, bad living habits, history of diabetes, and family history of fatty liver. CAP can noninvasively detect fatty liver with higher sensitivity and less time; however, its clinical significance needs further studies.

  5. Estimation of Fracture Parameters for Leak-before-Break Assessment on Elevated Temperature

    Energy Technology Data Exchange (ETDEWEB)

    Lee, S. Y.; Kim, N. H.; Koo, G. H. [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of); Kim, D. J. [Korea Univ., Seoul (Korea, Republic of)

    2015-05-15

    When the liquid sodium leaks this interaction may cause the fire that is harmful to safety of the reactor. Therefore, it is necessary to prevent against sodium fire in SFRs. Leak-before-Break(LBB) concept, had been devised for this purpose and has following advantage than Double-ended Guillotine Break(DEGB) design. If DEGB is excluded, the number of extinguish facilities and firewalls against the sodium fire can be minimize. LBB concept, has been well established and had many experience in regard of light water reactors(LWRs). But LBB assessment to SFRs is more complicated because SFRs is operated on elevated temperature region. On this region, because creep damage occurs to material and grows defects LBB assessment to SFRs should be considering creep effects. The procedure and method for this purpose are provided RCC-MRx A16 that is France code. To calculate fracture parameters such as K and J are required to some coefficients and equations which have been limited in RCC-MRx A16. Thus, in this study obtained K and J using finite element analysis for the sub-model including the crack. In this study, fracture parameters for LBB assessment were estimated by finite element analysis. This result will be applicable to LBB assessment of PGSFR.

  6. Ergonomic assessment among radiology technologists: a survey in a hospital.

    Science.gov (United States)

    Pais, Fernando Lima; Azevedo, Paulo Roberto; Medeiros, Lícia Helena de Oliveira; de Freitas, Iraí Borges; Stamato, Cláudia

    2012-01-01

    This article is the result of an Ergonomic Diagnosis in a study for a Specialization Course in Ergonomics. The research is being done in a public hospital in the city of Rio de Janeiro, where the target system is the radiology sector. For diagnosis purposes, subjective techniques were used, such as an open-ended survey, Corlett questionnaire and techniques for evaluating ergonomic risk such as Owas and Rula. Systematic observation was emphasized using photos and films. Preliminary observations made to the radiographers found that these professionals suffer risks of physical and verbal harassment, as well as sexual harassment. Most of them feel discriminated against in terms of race and accumulate activities demanding a lot of attention, as the medical diagnosis and subsequent procedures will depend on the outcome of this task. They accumulate tension due to the weight of responsibility, since there are cases where the patient has risk of death.

  7. PROBABILITY SURVEYS , CONDITIONAL PROBABILITIES AND ECOLOGICAL RISK ASSESSMENT

    Science.gov (United States)

    We show that probability-based environmental resource monitoring programs, such as the U.S. Environmental Protection Agency's (U.S. EPA) Environmental Monitoring and Assessment Program, and conditional probability analysis can serve as a basis for estimating ecological risk over ...

  8. Transfer Credit Assessment: A Survey of Institutional Practices

    Science.gov (United States)

    British Columbia Council on Admissions and Transfer, 2015

    2015-01-01

    Assessing credits that transfer students bring to an institution may require a significant amount of institutional resources. The increased mobility of students among post-secondary institutions in British Columbia (BC), and the need to ensure efficient admission processes for both the student and the institution, makes transfer credit assessment…

  9. Guidelines for assessment of work disability: An international survey

    NARCIS (Netherlands)

    Boer, W.E.L. de; Rijkenberg, A.M.; Donceel, P.

    2011-01-01

    Background: Assessments of long-term work disability are carried out by social insurance physicians (SIPs) and are little supported with evidence or instruments. Guidelines are hardly ever used in social insurance medicine. Developments in social insurance medicine might be slow as insurance is diff

  10. PROBABILITY SURVEYS , CONDITIONAL PROBABILITIES AND ECOLOGICAL RISK ASSESSMENT

    Science.gov (United States)

    We show that probability-based environmental resource monitoring programs, such as the U.S. Environmental Protection Agency's (U.S. EPA) Environmental Monitoring and Assessment Program, and conditional probability analysis can serve as a basis for estimating ecological risk over ...

  11. Comparison-based Image Quality Assessment for Selecting Image Restoration Parameters.

    Science.gov (United States)

    Liang, Haoyi; Weller, Daniel

    2016-08-19

    Image quality assessment (IQA) is traditionally classified into full-reference (FR) IQA, reduced-reference (RR) IQA, and no-reference (NR) IQA according to the amount of information required from the original image. Although NRIQA and RR-IQA are widely used in practical applications, room for improvement still remains because of the lack of the reference image. Inspired by the fact that in many applications, such as parameter selection for image restoration algorithms, a series of distorted images are available, the authors propose a novel comparison-based image quality assessment (C-IQA) framework. The new comparison-based framework parallels FRIQA by requiring two input images, and resembles NR-IQA by not using the original image. As a result, the new comparisonbased approach has more application scenarios than FR-IQA does, and takes greater advantage of the accessible information than the traditional single-input NR-IQA does. Further, C-IQA is compared with other state-of-the-art NR-IQA methods and another RR-IQA method on two widely used IQA databases. Experimental results show that C-IQA outperforms the other methods for parameter selection, and the parameter trimming framework combined with C-IQA saves the computation of iterative image reconstruction up to 80%.

  12. Problems with the Big Five assessment in the World Values Survey

    DEFF Research Database (Denmark)

    Ludeke, Steven G.; Larsen, Erik Gahner

    2017-01-01

    Publicly-available data from the World Values Survey (WVS) is an extremely valuable resource for social scientists, serving as the basis for thousands of research publications. The most recent assessment (Wave 6) was the first to assess Big Five personality traits, and this data has already been...

  13. Assessment of the Measurement Properties of the NHCAHPS Family Survey: A Rasch Scaling Approach

    Science.gov (United States)

    O'Connor, Matthew S.

    2013-01-01

    The introduction of the Consumer Assessment of Healthcare Providers and Systems (CAHPS), a family of survey instruments designed to capture and report people's experiences obtaining health care could soon add satisfaction as a consistent dimension of quality that skilled nursing facilities (SNFs) are required to assess and report. The SNF setting…

  14. 31 CFR 560.537 - Authorization of certain survey or assessment missions in Iran.

    Science.gov (United States)

    2010-07-01

    ... assessment missions in Iran. 560.537 Section 560.537 Money and Finance: Treasury Regulations Relating to... certain survey or assessment missions in Iran. (a) Subject to the conditions of paragraphs (b), (c), and... missions in Iran related to the planning or preparation for the provision of humanitarian support to...

  15. Survey assessment on pediatricians' attitudes on head lice management.

    Science.gov (United States)

    Fancelli, Claudia; Prato, Manuela; Montagnani, Carlotta; Pierattelli, Monica; Becherucci, Paolo; Chiappini, Elena; de Martino, Maurizio; Galli, Luisa

    2013-10-03

    Pediculosis capitis is a worldwide health problem. One of the most important factor in effective head lice eradication is to ensure that infestation is adequately recognized and treated. Our survey investigated the knowledge and practice among primary care Italian pediatricians regarding to the prevention and treatment of head lice. The questionnaire was distributed to all the pediatricians registered at the Annual Congress of Practice in Pediatrics held in Florence, Italy, November 11-12, 2011. It includes 10 questions in a multiple choice format, and one answer for each question was provided. The questionnaire was conceived by pediatricians at the Infectious Disease Unit of the Department of Science for the Health of Woman and Child, University of Florence. Questions were designed according to the guidelines by the Italian Pediatric Society (SIP), and international guidelines, such as the Centers for Disease Control and Prevention (CDC), and the American Academy of Pediatrics (AAP). Overall, 364/600 pediatricians (60.7% of physicians registered to the Congress) returned the questionnaire. The majority of them (232/364; 63,7%) believe that parents consult their primary care pediatrician only after the failure of other "remedies". Mostly, they prescribe Malathion (116/364, 31,8%) as first line treatment. Two-hundred-fourty-three (66.7%) of participants consider creams, foams and gels the most effective formulations. Two-hundred-sixty-two of pediatricians interviewed (72.0%) suggest to repeat the treatment after one week, 37/364 (10.2%) after two weeks. The majority of the pediatricians interviewed reported that recurrences occur in less than 30% of cases (279/364; 76,6%). In their own opinion, most of recurrences are the consequence of a reinfestation in the community (259/264; 77%). Three-hundred-thirty-four (91.7%) of them have never prescribed oral therapy for the treatment of head lice. Finally, 289/364 (79.4%) pediatricians believe that no product is effective

  16. Psychodiagnostic test usage: a survey of the society for personality assessment.

    Science.gov (United States)

    Piotrowski, C; Sherry, D; Keller, J W

    1985-04-01

    The present survey investigated psychodiagnostic test usage and practices of the Society for Personality Assessment. A brief questionnaire was forwarded to 400 SPA members and 206 responded for a 51.5% rate of return. Projective techniques found popular in previous surveys of Division 12 were the major assessment instruments utilized by SPA members. Exner's comprehensive system was the preferred mode of Rorschach analysis, followed by the Klopfer and Beck systems. The Wechsler Scales and the MMPI were frequently included in conducting a psychological battery. Personality assessment was mainly utilized for diagnostic purposes and as an indicator for type of therapy.

  17. Preliminary performance assessment for the Waste Isolation Pilot Plant, December 1992. Volume 3, Model parameters: Sandia WIPP Project

    Energy Technology Data Exchange (ETDEWEB)

    1992-12-29

    This volume documents model parameters chosen as of July 1992 that were used by the Performance Assessment Department of Sandia National Laboratories in its 1992 preliminary performance assessment of the Waste Isolation Pilot Plant (WIPP). Ranges and distributions for about 300 modeling parameters in the current secondary data base are presented in tables for the geologic and engineered barriers, global materials (e.g., fluid properties), and agents that act upon the WIPP disposal system such as climate variability and human-intrusion boreholes. The 49 parameters sampled in the 1992 Preliminary Performance Assessment are given special emphasis with tables and graphics that provide insight and sources of data for each parameter.

  18. Assessment of changes in gait parameters and vertical ground reaction forces after total hip arthroplasty

    Directory of Open Access Journals (Sweden)

    Bhargava P

    2007-01-01

    Full Text Available The principal objectives of arthroplasty are relief of pain and enhancement of range of motion. Currently, postoperative pain and functional capacity are assessed largely on the basis of subjective evaluation scores. Because of the lack of control inherent in this method it is often difficult to interpret data presented by different observers in the critical evaluation of surgical method, new components and modes of rehabilitation. Gait analysis is a rapid, simple and reliable method to assess functional outcome. This study was undertaken in an effort to evaluate the gait characteristics of patients who underwent arthroplasty, using an Ultraflex gait analyzer. Materials and Methods: The study was based on the assessment of gait and weight-bearing pattern of both hips in patients who underwent total hip replacement and its comparison with an age and sex-matched control group. Twenty subjects of total arthroplasty group having unilateral involvement, operated by posterior approach at our institution with a minimum six-month postoperative period were selected. Control group was age and sex-matched, randomly selected from the general population. Gait analysis was done using Ultraflex gait analyzer. Gait parameters and vertical ground reaction forces assessment was done by measuring the gait cycle properties, step time parameters and VGRF variables. Data of affected limb was compared with unaffected limb as well as control group to assess the weight-bearing pattern. Statistical analysis was done by′t′ test. Results: Frequency is reduced and gait cycle duration increased in total arthroplasty group as compared with control. Step time parameters including Step time, Stance time and Single support time are significantly reduced ( P value < .05 while Double support time and Single swing time are significantly increased ( P value < .05 in the THR group. Forces over each sensor are increased more on the unaffected limb of the THR group as compared to

  19. Procedure for quantifiable assessment of nutritional parameters influencing nisin production by Lactococcus lactis subsp. lactis.

    Science.gov (United States)

    Chandrapati, S; O'Sullivan, D J

    1998-08-27

    A modified rapid plate assay procedure was developed, that allowed quantifiable measurement of nisin production by Lactococcus lactis growing directly on agar media. Using this direct plate assay, several nutritional parameters were assessed for their influence on nisin production (as distinct from their influence on growth) by L. lactis subsp. lactis ATCC 11454 growing on standard M17 based media over 3 and 6 h incubation periods. Glucose was found to be the optimal carbon source tested, with glycerol having the greatest suppressive effect. The addition of salts suppressed nisin production on a per cell basis, except MnCl2. This direct plate method proved to be a good pilot assay for rapidly and quantifiably investigating the initial effects of different parameters on nisin production by L. lactis, prior to conducting more intensive broth batch culture assays. The data obtained in this study indicate that certain nutritional parameters can impose a repressive effect on nisin production. Elucidation of how these parameters control the amount of nisin produced will provide further insight into the regulation of nisin biosynthesis in L. lactis.

  20. The HST/ACS Coma Cluster Survey - III. Structural parameters of galaxies using single Sérsic fits

    Science.gov (United States)

    Hoyos, Carlos; den Brok, Mark; Verdoes Kleijn, Gijs; Carter, David; Balcells, Marc; Guzmán, Rafael; Peletier, Reynier; Ferguson, Henry C.; Goudfrooij, Paul; Graham, Alister W.; Hammer, Derek; Karick, Arna M.; Lucey, John R.; Matković, Ana; Merritt, David; Mouhcine, Mustapha; Valentijn, Edwin

    2011-03-01

    We present a catalogue of structural parameters for 8814 galaxies in the 25 fields of the Hubble Space Telescope/ACS Coma Treasury Survey. Parameters from Sérsic fits to the two-dimensional surface brightness distributions are given for all galaxies from our published Coma photometric catalogue with mean effective surface brightness brighter than 26.0 mag arcsec-2 and brighter than 24.5 mag (equivalent to absolute magnitude -10.5), as given by the fits, all in F814W(AB). The sample comprises a mixture of Coma members and background objects; 424 galaxies have redshifts and of these 163 are confirmed members. The fits were carried out using both the GIM2D and GALFIT codes. We provide the following parameters: galaxy ID, RA, Dec., the total corrected automatic magnitude from the photometric catalogue, the total magnitude of the model (F814WAB), the geometric mean effective radius Re, the mean surface brightness within the effective radius e, the Sérsic index n, the ellipticity and the source position angle. The selection limits of the catalogue and the errors listed for the Sérsic parameters come from extensive simulations of the fitting process using synthetic galaxy models. The agreement between GIM2D and GALFIT parameters is sensitive to details of the fitting procedure; for the settings employed here the agreement is excellent over the range of parameters covered in the catalogue. We define and present two goodness-of-fit indices which quantify the degree to which the image can be approximated by a Sérsic model with concentric, coaxial elliptical isophotes; such indices may be used to objectively select galaxies with more complex structures such as bulge-disc, bars or nuclear components. We make the catalogue available in electronic format at ASTRO-WISE and MAST. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy

  1. A survey of short-term and long-term stability of tube parameters in a mammography unit

    Directory of Open Access Journals (Sweden)

    Praskalo Jovica Ž.

    2014-01-01

    Full Text Available In order to set up a successful mammography screening program in the Republic of Srpska, a Siemens Mammomat 1000 X-ray machine was selected for analysis as the said mammography system is widely used in clinical practice. The variations in tube parameters (specific air kerma, high-voltage accuracy and reproducibility, linearity between exposure and dose exposure time were monitored over a five-year period, from 2008 to 2012. In addition, due to observed daily fluctuations for chosen parameters, a series of measurements were performed three times a day within a single-month period (mainly October 2012. The goal of such an experimental set up is to assess short-term and long-term stability of tube parameters in the given mammography unit and to make a comparison between them. The present paper shows how an early detection of significant parameter fluctuations can help eliminate irregularities and optimize the performance of mammography systems. [Projekat Ministarstva nauke Republike Srbije, br. 171007

  2. Assessment of Hematological and Biochemical parameters with extended D-Ribose ingestion

    Directory of Open Access Journals (Sweden)

    Frelich Angela

    2008-09-01

    Full Text Available Abstract D-ribose, a naturally occurring pentose carbohydrate, has been shown to replenish high- energy phosphates following myocardial ischemia and high intensity, repetitive exercise. Human studies have mainly involved short-term assessment, including potential toxicity. Reports describing adverse effects of D-ribose with prolonged ingestion have been lacking. Therefore, this study assessed the toxicity of extended consumption of D-ribose in healthy adults. Nineteen subjects ingested 20 grams/Day (10 grams, twice a Day of ribose with serial measurements of biochemical and hematological parameters at Days 0, 7, and 14. No significant toxic changes over the 14-day assessment period occurred in complete blood count, albumin, alkaline phosphatase, gamma glutamyltransferase, alanine amiotransferase, and aspartate aminotransferase. However, D-ribose did produce an asymptomatic, mild hypoglycemia of short duration. Uric acid levels increased at Day 7, but decreased to baseline values by Day 14. D-ribose consumption for 14 days appears not to produce significant toxic changes in both hematological and biochemical parameters in healthy human volunteers.

  3. Assessment of Food Chain Pathway Parameters in Biosphere Models: Annual Progress Report for Fiscal Year 2004

    Energy Technology Data Exchange (ETDEWEB)

    Napier, Bruce A.; Krupka, Kenneth M.; Fellows, Robert J.; Cataldo, Dominic A.; Valenta, Michelle M.; Gilmore, Tyler J.

    2004-12-02

    This Annual Progress Report describes the work performed and summarizes some of the key observations to date on the U.S. Nuclear Regulatory Commission’s project Assessment of Food Chain Pathway Parameters in Biosphere Models, which was established to assess and evaluate a number of key parameters used in the food-chain models used in performance assessments of radioactive waste disposal facilities. Section 2 of this report describes activities undertaken to collect samples of soils from three regions of the United States, the Southeast, Northwest, and Southwest, and perform analyses to characterize their physical and chemical properties. Section 3 summarizes information gathered regarding agricultural practices and common and unusual crops grown in each of these three areas. Section 4 describes progress in studying radionuclide uptake in several representative crops from the three soil types in controlled laboratory conditions. Section 5 describes a range of international coordination activities undertaken by Project staff in order to support the underlying data needs of the Project. Section 6 provides a very brief summary of the status of the GENII Version 2 computer program, which is a “client” of the types of data being generated by the Project, and for which the Project will be providing training to the US NRC staff in the coming Fiscal Year. Several appendices provide additional supporting information.

  4. Analysis report for WIPP colloid model constraints and performance assessment parameters

    Energy Technology Data Exchange (ETDEWEB)

    Mariner, Paul E.; Sassani, David Carl

    2014-03-01

    An analysis of the Waste Isolation Pilot Plant (WIPP) colloid model constraints and parameter values was performed. The focus of this work was primarily on intrinsic colloids, mineral fragment colloids, and humic substance colloids, with a lesser focus on microbial colloids. Comments by the US Environmental Protection Agency (EPA) concerning intrinsic Th(IV) colloids and Mg-Cl-OH mineral fragment colloids were addressed in detail, assumptions and data used to constrain colloid model calculations were evaluated, and inconsistencies between data and model parameter values were identified. This work resulted in a list of specific conclusions regarding model integrity, model conservatism, and opportunities for improvement related to each of the four colloid types included in the WIPP performance assessment.

  5. Life cycle assessment and residue leaching: The importance of parameter, scenario and leaching data selection

    DEFF Research Database (Denmark)

    Allegrini, Elisa; Butera, Stefania; Kosson, D.S.

    2015-01-01

    boundaries. The importance of data quality and parameter selection in the overall LCA results was evaluated, and an innovative method to assess metal transport into the environment was applied, in order to determine emissions to the soil and water compartments for use in an LCA. It was found that toxic...... of systems and products and can be applied to waste management systems to identify environmental benefits and critical aspects thereof. From an LCA perspective, residue utilisation provides benefits such as avoiding the production and depletion of primary materials, but it can lead to environmental burdens...... in the scenario (e.g. electricity production). Based on the analysis of relevant parameters relative to leaching, and on general results of the study, recommendations are provided regarding the use of leaching data in LCA studies....

  6. Parameters assessment of the inductively-coupled circuit for wireless power transfer

    Science.gov (United States)

    Isaev, Yu N.; Vasileva, O. V.; Budko, A. A.; Lefebvre, S.

    2017-02-01

    In this paper, a wireless power transfer model through the example of inductively-coupled coils of irregular shape in software package COMSOL Multiphysics is studied. Circuit parameters, such as inductance, coil resistance and self-capacitance were defined through electromagnetic energy by the finite-element method. The study was carried out according to Helmholtz equation. Spatial distribution of current per unit depending on frequency and the coupling coefficient for analysis of resonant frequency and spatial distribution of the vector magnetic potential at different distances between coils were presented. The resulting algorithm allows simulating the wireless power transfer between the inductively coupled coils of irregular shape with the assessment of the optimal parameters.

  7. Fast Parameters Estimation in Medication Efficacy Assessment Model for Heart Failure Treatment

    Directory of Open Access Journals (Sweden)

    Yinzi Ren

    2012-01-01

    Full Text Available Introduction. Heart failure (HF is a common and potentially fatal condition. Cardiovascular research has focused on medical therapy for HF. Theoretical modelling could enable simulation and evaluation of the effectiveness of medications. Furthermore, the models could also help predict patients’ cardiac response to the treatment which will be valuable for clinical decision-making. Methods. This study presents a fast parameters estimation algorithm for constructing a cardiovascular model for medicine evaluation. The outcome of HF treatment is assessed by hemodynamic parameters and a comprehensive index furnished by the model. Angiotensin-converting enzyme inhibitors (ACEIs were used as a model drug in this study. Results. Our simulation results showed different treatment responses to enalapril and lisinopril, which are both ACEI drugs. A dose-effect was also observed in the model simulation. Conclusions. Our results agreed well with the findings from clinical trials and previous literature, suggesting the validity of the model.

  8. Methodology for assessment of low level laser therapy (LLLT) irradiation parameters in muscle inflammation treatment

    Science.gov (United States)

    Mantineo, M.; Pinheiro, J. P.; Morgado, A. M.

    2013-11-01

    Several studies in human and animals show the clinical effectiveness of low level laser therapy (LLLT) in reducing some types of pain, treating inflammation and wound healing. However, more scientific evidence is required to prove the effectiveness of LLLT since many aspects of the cellular and molecular mechanisms triggered by irradiation of injured tissue with laser remain unknown. Here, we present a methodology that can be used to evaluate the effect of different LLLT irradiation parameters on the treatment of muscle inflammation on animals, through the quantification of four cytokines (TNF-α, IL-1β, IL-2 and IL-6) in systemic blood and histological analysis of muscle tissue. We have used this methodology to assess the effect of LLLT parameters (wavelength, dose, power and type of illumination) in the treatment of inflammation induced in the gastrocnemius muscle of Wistar rats. Results obtained for laser dose evaluation with continuous illumination are presented.

  9. Health assessment and seroepidemiologic survey of potential pathogens in wild Antillean manatees (Trichechus manatus manatus)

    Science.gov (United States)

    Sulzner, Kathryn; Johnson, Christine Kreuder; Bonde, Robert K.; Gomez, Nicole Auil; Powell, James; Nielsen, Klaus; Luttrell, M. Page; Osterhaus, A.D.M.E.; Aguirre, A. Alonso

    2012-01-01

    The Antillean manatee (Trichechus manatus manatus), a subspecies of the West Indian manatee, inhabits fresh, brackish, and warm coastal waters distributed along the eastern border of Central America, the northern coast of South America, and throughout the Wider Caribbean Region. Threatened primarily by human encroachment, poaching, and habitat degradation, Antillean manatees are listed as endangered by the International Union for the Conservation of Nature. The impact of disease on population viability remains unknown in spite of concerns surrounding the species' ability to rebound from a population crash should an epizootic occur. To gain insight on the baseline health of this subspecies, a total of 191 blood samples were collected opportunistically from wild Antillean manatees in Belize between 1997 and 2009. Hematologic and biochemical reference intervals were established, and antibody prevalence to eight pathogens with zoonotic potential was determined. Age was found to be a significant factor of variation in mean blood values, whereas sex, capture site, and season contributed less to overall differences in parameter values. Negative antibody titers were reported for all pathogens surveyed except for Leptospira bratislava, L. canicola, and L. icterohemorrhagiae, Toxoplasma gondii, and morbillivirus. As part of comprehensive health assessment in manatees from Belize, this study will serve as a benchmark aiding in early disease detection and in the discernment of important epidemiologic patterns in the manatees of this region. Additionally, it will provide some of the initial tools to explore the broader application of manatees as sentinel species of nearshore ecosystem health.

  10. APPLICATION OF LASER SCANNING SURVEYING TO ROCK SLOPES RISK ASSESSMENT ANALYSIS

    Directory of Open Access Journals (Sweden)

    M. Corsetti

    2014-01-01

    Full Text Available The methods for understanding rock instability mechanisms and for evaluating potential destructive scenarios are of great importance in risk assessment analysis dedicated to the establishment of appropriate prevention and mitigation actions. When the portion of the unstable rock mass is very large, effective actions to counteract the risks are complex and expensive. In these conditions, an optimal risk management cannot ignore procedures able to faster and accurately acquire i geometrical data for modeling the geometry of the rock walls and implementing reliable forecasting models and ii monitoring data able to describe the magnitude and the direction of deformation processes. These data contributes to the prediction of the behavior of a landslide if the measurements are acquired frequently and reliable numerical models can be implemented. Innovative geomatic techniques, based on GPS, Terrestrial Laser Scanning Surveying (TLS, automated total station and satellite and ground SAR Interferometry, have been recently applied to define the geometry and monitoring the displacements of unstable slopes. Among these, TLS is mainly adopted to generate detailed 3D models useful to reconstruct rock wall geometry by contributing to the estimation of geo-mechanical parameters, that is orientation, persistence and apparent spacing of rock discontinuities. Two examples of applications of TLS technique to the analysis of a large front in a quarry and of a rock shoulder of a dam are presented.

  11. Health assessment and seroepidemiologic survey of potential pathogens in wild Antillean manatees (Trichechus manatus manatus).

    Science.gov (United States)

    Sulzner, Kathryn; Kreuder Johnson, Christine; Bonde, Robert K; Auil Gomez, Nicole; Powell, James; Nielsen, Klaus; Luttrell, M Page; Osterhaus, A D M E; Aguirre, A Alonso

    2012-01-01

    The Antillean manatee (Trichechus manatus manatus), a subspecies of the West Indian manatee, inhabits fresh, brackish, and warm coastal waters distributed along the eastern border of Central America, the northern coast of South America, and throughout the Wider Caribbean Region. Threatened primarily by human encroachment, poaching, and habitat degradation, Antillean manatees are listed as endangered by the International Union for the Conservation of Nature. The impact of disease on population viability remains unknown in spite of concerns surrounding the species' ability to rebound from a population crash should an epizootic occur. To gain insight on the baseline health of this subspecies, a total of 191 blood samples were collected opportunistically from wild Antillean manatees in Belize between 1997 and 2009. Hematologic and biochemical reference intervals were established, and antibody prevalence to eight pathogens with zoonotic potential was determined. Age was found to be a significant factor of variation in mean blood values, whereas sex, capture site, and season contributed less to overall differences in parameter values. Negative antibody titers were reported for all pathogens surveyed except for Leptospira bratislava, L. canicola, and L. icterohemorrhagiae, Toxoplasma gondii, and morbillivirus. As part of comprehensive health assessment in manatees from Belize, this study will serve as a benchmark aiding in early disease detection and in the discernment of important epidemiologic patterns in the manatees of this region. Additionally, it will provide some of the initial tools to explore the broader application of manatees as sentinel species of nearshore ecosystem health.

  12. Health assessment and seroepidemiologic survey of potential pathogens in wild Antillean manatees (Trichechus manatus manatus.

    Directory of Open Access Journals (Sweden)

    Kathryn Sulzner

    Full Text Available The Antillean manatee (Trichechus manatus manatus, a subspecies of the West Indian manatee, inhabits fresh, brackish, and warm coastal waters distributed along the eastern border of Central America, the northern coast of South America, and throughout the Wider Caribbean Region. Threatened primarily by human encroachment, poaching, and habitat degradation, Antillean manatees are listed as endangered by the International Union for the Conservation of Nature. The impact of disease on population viability remains unknown in spite of concerns surrounding the species' ability to rebound from a population crash should an epizootic occur. To gain insight on the baseline health of this subspecies, a total of 191 blood samples were collected opportunistically from wild Antillean manatees in Belize between 1997 and 2009. Hematologic and biochemical reference intervals were established, and antibody prevalence to eight pathogens with zoonotic potential was determined. Age was found to be a significant factor of variation in mean blood values, whereas sex, capture site, and season contributed less to overall differences in parameter values. Negative antibody titers were reported for all pathogens surveyed except for Leptospira bratislava, L. canicola, and L. icterohemorrhagiae, Toxoplasma gondii, and morbillivirus. As part of comprehensive health assessment in manatees from Belize, this study will serve as a benchmark aiding in early disease detection and in the discernment of important epidemiologic patterns in the manatees of this region. Additionally, it will provide some of the initial tools to explore the broader application of manatees as sentinel species of nearshore ecosystem health.

  13. 75 FR 33325 - Notice of Availability of the Draft Environmental Assessment of a Marine Geophysical Survey by...

    Science.gov (United States)

    2010-06-11

    ... by the U.S. Geological Survey in the Arctic Ocean, August-September 2010 AGENCY: U.S. Geological... Environmental Policy Act of 1969, as amended, the U.S. Geological Survey (USGS) has prepared a Draft Environmental Assessment (EA) of a Marine Geophysical Survey by the U.S. Geological Survey in the Arctic...

  14. Life cycle assessment and residue leaching: The importance of parameter, scenario and leaching data selection

    Energy Technology Data Exchange (ETDEWEB)

    Allegrini, E., E-mail: elia@env.dtu.dk [Technical University of Denmark, Department of Environmental Engineering, Building 115, 2800 Lyngby (Denmark); Butera, S. [Technical University of Denmark, Department of Environmental Engineering, Building 115, 2800 Lyngby (Denmark); Kosson, D.S. [Vanderbilt University, Department of Civil and Environmental Engineering, Box 1831 Station B, Nashville, TN 37235 (United States); Van Zomeren, A. [Energy Research Centre of the Netherlands (ECN), Department of Environmental Risk Assessment, P.O. Box 1, 1755 ZG Petten (Netherlands); Van der Sloot, H.A. [Hans van der Sloot Consultancy, Dorpsstraat 216, 1721 BV Langedijk (Netherlands); Astrup, T.F. [Technical University of Denmark, Department of Environmental Engineering, Building 115, 2800 Lyngby (Denmark)

    2015-04-15

    Highlights: • Relevance of metal leaching in waste management system LCAs was assessed. • Toxic impacts from leaching could not be disregarded. • Uncertainty of toxicity, due to background activities, determines LCA outcomes. • Parameters such as pH and L/S affect LCA results. • Data modelling consistency and coverage within an LCA are crucial. - Abstract: Residues from industrial processes and waste management systems (WMSs) have been increasingly reutilised, leading to landfilling rate reductions and the optimisation of mineral resource utilisation in society. Life cycle assessment (LCA) is a holistic methodology allowing for the analysis of systems and products and can be applied to waste management systems to identify environmental benefits and critical aspects thereof. From an LCA perspective, residue utilisation provides benefits such as avoiding the production and depletion of primary materials, but it can lead to environmental burdens, due to the potential leaching of toxic substances. In waste LCA studies where residue utilisation is included, leaching has generally been neglected. In this study, municipal solid waste incineration bottom ash (MSWI BA) was used as a case study into three LCA scenarios having different system boundaries. The importance of data quality and parameter selection in the overall LCA results was evaluated, and an innovative method to assess metal transport into the environment was applied, in order to determine emissions to the soil and water compartments for use in an LCA. It was found that toxic impacts as a result of leaching were dominant in systems including only MSWI BA utilisation, while leaching appeared negligible in larger scenarios including the entire waste system. However, leaching could not be disregarded a priori, due to large uncertainties characterising other activities in the scenario (e.g. electricity production). Based on the analysis of relevant parameters relative to leaching, and on general results

  15. The OPD photometric survey of open clusters II. robust determination of the fundamental parameters of 24 open clusters

    Science.gov (United States)

    Monteiro, H.; Dias, W. S.; Hickel, G. R.; Caetano, T. C.

    2017-02-01

    In the second paper of the series we continue the investigation of open cluster fundamental parameters using a robust global optimization method to fit model isochrones to photometric data. We present optical UBVRI CCD photometry (Johnsons-Cousins system) observations for 24 neglected open clusters, of which 14 have high quality data in the visible obtained for the first time, as a part of our ongoing survey being carried out in the 0.6 m telescope of the Pico dos Dias Observatory in Brazil. All objects were then analyzed with a global optimization tool developed by our group which estimates the membership likelihood of the observed stars and fits an isochrone from which a distance, age, reddening, total to selective extinction ratio RV (included in this work as a new free parameter) and metallicity are estimated. Based on those estimates and their associated errors we analyzed the status of each object as real clusters or not, finding that two are likely to be asterisms. We also identify important discrepancies between our results and previous ones obtained in the literature which were determined using 2MASS photometry.

  16. The OPD Photometric Survey of Open Clusters II. robust determination of the fundamental parameters of 24 open clusters

    CERN Document Server

    Monteiro, Hektor; Hickel, Gabriel R; Caetano, Thiago C

    2016-01-01

    In the second paper of the series we continue the investigation of open cluster fundamental parameters using a robust global optimization method to fit model isochrones to photometric data. We present optical UBVRI CCD photometry (Johnsons-Cousins system) observations for 24 neglected open clusters, of which 14 have high quality data in the visible obtained for the first time, as a part of our ongoing survey being carried out in the 0.6m telescope of the Pico dos Dias Observatory in Brazil. All objects were then analyzed with a global optimization tool developed by our group which estimates the membership likelihood of the observed stars and fits an isochrone from which a distance, age, reddening, total to selective extinction ratio $R_{V}$ (included in this work as a new free parameter) and metallicity are estimated. Based on those estimates and their associated errors we analyzed the status of each object as real clusters or not, finding that two are likely to be asterisms. We also identify important discre...

  17. Spectroscopic Survey of {\\gamma} Doradus Stars I. Comprehensive atmospheric parameters and abundance analysis of {\\gamma} Doradus stars

    CERN Document Server

    Kahraman-Alicavus, F; De Cat, P; Soydugan, E; Kolaczkowski, Z; Ostrowski, J; Telting, J H; Uytterhoeven, K; Poretti, E; Rainer, M; Suarez, J C; Mantegazza, L; Kilmartin, P; Pollard, K R

    2016-01-01

    We present a spectroscopic survey of {\\gamma} Doradus stars. The high-resolution, high signal-to-noise spectra of fifty-two objects were collected by five different spectrographs. The spectral classification, atmospheric parameters ($T_{\\rm eff}$ , $\\log g$, {\\xi}), vsini and chemical composition of the stars were derived. The spectral and luminosity classes of the stars were found between A7 - G0 and IV - V, respectively. The initial values for $T_{\\rm eff}$ and $\\log g$ were determined from photometric indices and spectral energy distribution. Those parameters were improved by the analysis of hydrogen lines. The final values of $T_{\\rm eff}$, $\\log g$ and {\\xi} were derived from the iron lines analysis. For the whole sample, $T_{\\rm eff}$ values were found between 6000 K and 7900 K, while logg values range from 3.8 to 4.5 dex. Chemical abundances and v sin i values were derived by the spectrum synthesis method. The $v \\sin i$ values were found between 5 and 240 km s$^{-1}$. The chemical abundance pattern of...

  18. The Space Interferometry Mission Astrometric Grid Giant-Star Survey. I. Stellar Parameters and Radial Velocity Variability

    CERN Document Server

    Bizyaev, D; Cunha, K; Geisler, D; Gieren, W; Majewski, S R; Pardo, C D; Patterson, R J; Smith, V V; Suntzeff, N B; Arenas, Jose; Bizyaev, Dmitry; Cunha, Katia; Geisler, Doug; Gieren, Wolfgang; Majewski, Steven R.; Pardo, Cecilia Del; Patterson, Richard J.; Smith, Verne V.; Suntzeff, Nicholas B.

    2005-01-01

    We present results from a campaign of multiple epoch echelle spectroscopy of relatively faint (V = 9.5-13.5 mag) red giants observed as potential astrometric grid stars for the Space Interferometry Mission (SIM PlanetQuest). Data are analyzed for 775 stars selected from the Grid Giant Star Survey spanning a wide range of effective temperatures (Teff), gravities and metallicities. The spectra are used to determine these stellar parameters and to monitor radial velocity (RV) variability at the 100 m/s level. The degree of RV variation measured for 489 stars observed two or more times is explored as a function of the inferred stellar parameters. The percentage of radial velocity unstable stars is found to be very high -- about 2/3 of our sample. It is found that the fraction of RV-stable red giants (at the 100 m/s level) is higher among stars with Teff \\sim 4500 K, corresponding to the calibration-independent range of infrared colors 0.59 < (J-K_s)_0 < 0.73. A higher percentage of RV-stable stars is found ...

  19. Assessment of water quality of a river-dominated estuary with hydrochemical parameters: A statistical approach.

    Digital Repository Service at National Institute of Oceanography (India)

    Padma, P.; Sheela, V.S.; Suryakumari, S.; Jayalakshmy, K.V.; Nair, S.M.; Kumar, N.C.

    stream_size 64084 stream_content_type text/plain stream_name Water_Qual_Expos_Health_5_197.pdf.txt stream_source_info Water_Qual_Expos_Health_5_197.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8... Water Qual Expo Health DOI 10.1007/s12403-014-0115-9 ORIGINAL PAPER Assessment of Water Quality of a River-Dominated Estuary with Hydrochemical Parameters: A Statistical Approach P. Padma · V. S. Sheela · S. Suryakumari · K. V. Jayalakshmy · S. M. Nair...

  20. Classification and assessment of rock mass parameters in Choghart iron mine using P-wave velocity

    Directory of Open Access Journals (Sweden)

    Mohammadreza Hemmati Nourani

    2017-04-01

    Full Text Available Engineering rock mass classification, based on empirical relations between rock mass parameters and engineering applications, is commonly used in rock engineering and forms the basis for designing rock structures. The basic data required may be obtained from visual observation and laboratory or field tests. However, owing to the discontinuous and variable nature of rock masses, it is difficult for rock engineers to directly obtain the specific design parameters needed. As an alternative, the use of geophysical methods in geomechanics such as seismography may largely address this problem. In this study, 25 seismic profiles with the total length of 543 m have been scanned to determine the geomechanical properties of the rock mass in blocks I, III and IV-2 of the Choghart iron mine. Moreover, rock joint measurements and sampling for laboratory tests were conducted. The results show that the rock mass rating (RMR and Q values have a close relation with P-wave velocity parameters, including P-wave velocity in field (VPF, P-wave velocity in the laboratory (VPL and the ratio of VPF to VPL (i.e. KP = VPF/VPL. However, Q value, totally, has greater correlation coefficient and less error than the RMR. In addition, rock mass parameters including rock quality designation (RQD, uniaxial compressive strength (UCS, joint roughness coefficient (JRC and Schmidt number (RN show close relationship with P-wave velocity. An equation based on these parameters was obtained to estimate the P-wave velocity in the rock mass with a correlation coefficient of 91%. The velocities in two orthogonal directions and the results of joint study show that the wave velocity anisotropy in rock mass may be used as an efficient tool to assess the strong and weak directions in rock mass.

  1. Assessment of highway condition using combined geophysical surveys

    Science.gov (United States)

    Dera, Abdallah Alhadi

    Four pavement sections were investigated using ground penetrating radar (GPR) and Ultrasonic Surface Wave (USW). The objective of this research was to compare the effectiveness of two non-destructive geophysical tools, GPR and the PSPA, in assessing the condition of the pavements, composed of different construction materials. The GPR data were acquired using a 1.5 GHz antenna along five traverses spaced at two ft. intervals approximately 1000 ft. long. On the other hand, the PSPA data were acquired at the stations spaced at 1000 ft. along the five GPR traverses. Core samples were collected at each site to constrain the interpretation of the acquired geophysical data. The sites include section US 63 about three miles north of Rolla, US 54 in Camdenton County, MO 179 in Jefferson City, and HWY U in Dent County. The types of pavement in these sites were, asphalt concrete overlaying portland cement concrete (AC/PCC), and full-depth asphalt concrete (AC) pavements or full depth bituminous mix (BM). Based on the acquired and analyzed data of the GPR and PSPA, the data of both tools correlated reasonably well. The PSPA technique successfully measured the elastic modulus and the thickness of pavement and detected horizontal flaws (e.g. debonding and delaminations). Similarly, the GPR technique successfully measured the thickness of pavement and detected horizontal flaws (e.g. debonding and delaminations) within the pavement. The research demonstrated that both non-destructive geophysical tools (GPR and PSPA) are effective in assessing the condition of different types of pavement.

  2. Transfer of the nationwide Czech soil survey data to a foreign soil classification - generating input parameters for a process-based soil erosion modelling approach

    Science.gov (United States)

    Beitlerová, Hana; Hieke, Falk; Žížala, Daniel; Kapička, Jiří; Keiser, Andreas; Schmidt, Jürgen; Schindewolf, Marcus

    2017-04-01

    Process-based erosion modelling is a developing and adequate tool to assess, simulate and understand the complex mechanisms of soil loss due to surface runoff. While the current state of available models includes powerful approaches, a major drawback is given by complex parametrization. A major input parameter for the physically based soil loss and deposition model EROSION 3D is represented by soil texture. However, as the model has been developed in Germany it is dependent on the German soil classification. To exploit data generated during a massive nationwide soil survey campaign taking place in the 1960s across the entire Czech Republic, a transfer from the Czech to the German or at least international (e.g. WRB) system is mandatory. During the survey the internal differentiation of grain sizes was realized in a two fractions approach, separating texture into solely above and below 0.01 mm rather than into clayey, silty and sandy textures. Consequently, the Czech system applies a classification of seven different textures based on the respective percentage of large and small particles, while in Germany 31 groups are essential. The followed approach of matching Czech soil survey data to the German system focusses on semi-logarithmic interpolation of the cumulative soil texture curve additionally on a regression equation based on a recent database of 128 soil pits. Furthermore, for each of the seven Czech texture classes a group of typically suitable classes of the German system was derived. A GIS-based spatial analysis to test approaches of interpolation the soil texture was carried out. First results show promising matches and pave the way to a Czech model application of EROSION 3D.

  3. Spectroscopic survey of γ Doradus stars - I. Comprehensive atmospheric parameters and abundance analysis of γ Doradus stars

    Science.gov (United States)

    Kahraman Aliçavuş, F.; Niemczura, E.; De Cat, P.; Soydugan, E.; Kołaczkowski, Z.; Ostrowski, J.; Telting, J. H.; Uytterhoeven, K.; Poretti, E.; Rainer, M.; Suárez, J. C.; Mantegazza, L.; Kilmartin, P.; Pollard, K. R.

    2016-05-01

    We present a spectroscopic survey of known and candidate γ Doradus stars. The high-resolution, high signal-to-noise spectra of 52 objects were collected by five different spectrographs. The spectral classification, atmospheric parameters (Teff, log g, ξ), vsin i and chemical composition of the stars were derived. The stellar spectral and luminosity classes were found between G0-A7 and IV-V, respectively. The initial values for Teff and log g were determined from the photometric indices and spectral energy distribution. Those parameters were improved by the analysis of hydrogen lines. The final values of Teff, log g and ξ were derived from the iron lines analysis. The Teff values were found between 6000 K and 7900 K, while log g values range from 3.8 to 4.5 dex. Chemical abundances and vsin i values were derived by the spectrum synthesis method. The vsin i values were found between 5 and 240 km s-1. The chemical abundance pattern of γ Doradus stars were compared with the pattern of non-pulsating stars. It turned out that there is no significant difference in abundance patterns between these two groups. Additionally, the relations between the atmospheric parameters and the pulsation quantities were checked. A strong correlation between the vsin i and the pulsation periods of γ Doradus variables was obtained. The accurate positions of the analysed stars in the Hertzsprung-Russell diagram have been shown. Most of our objects are located inside or close to the blue edge of the theoretical instability strip of γ Doradus.

  4. Probabilistic seismic hazard assessment in Greece – Part 1: Engineering ground motion parameters

    Directory of Open Access Journals (Sweden)

    G-A. Tselentis

    2010-01-01

    Full Text Available Seismic hazard assessment represents a basic tool for rational planning and designing in seismic prone areas. In the present study, a probabilistic seismic hazard assessment in terms of peak ground acceleration, peak ground velocity, Arias intensity and cumulative absolute velocity computed with a 0.05 g acceleration threshold, has been carried out for Greece. The output of the hazard computation produced probabilistic hazard maps for all the above parameters estimated for a fixed return period of 475 years. From these maps the estimated values are reported for 52 Greek municipalities. Additionally, we have obtained a set of probabilistic maps of engineering significance: a probabilistic macroseismic intensity map, depicting the Modified Mercalli Intensity scale obtained from the estimated peak ground velocity and a probabilistic seismic-landslide map based on a simplified conversion of the estimated Arias intensity and peak ground acceleration into Newmark's displacement.

  5. Assessing risk of baleen whale hearing loss from seismic surveys: The effect of uncertainty and individual variation.

    Science.gov (United States)

    Gedamke, Jason; Gales, Nick; Frydman, Sascha

    2011-01-01

    The potential for seismic airgun "shots" to cause acoustic trauma in marine mammals is poorly understood. There are just two empirical measurements of temporary threshold shift (TTS) onset levels from airgun-like sounds in odontocetes. Considering these limited data, a model was developed examining the impact of individual variability and uncertainty on risk assessment of baleen whale TTS from seismic surveys. In each of 100 simulations: 10000 "whales" are assigned TTS onset levels accounting for: inter-individual variation; uncertainty over the population's mean; and uncertainty over weighting of odontocete data to obtain baleen whale onset levels. Randomly distributed whales are exposed to one seismic survey passage with cumulative exposure level calculated. In the base scenario, 29% of whales (5th/95th percentiles of 10%/62%) approached to 1-1.2 km range were exposed to levels sufficient for TTS onset. By comparison, no whales are at risk outside 0.6 km when uncertainty and variability are not considered. Potentially "exposure altering" parameters (movement, avoidance, surfacing, and effective quiet) were also simulated. Until more research refines model inputs, the results suggest a reasonable likelihood that whales at a kilometer or more from seismic surveys could potentially be susceptible to TTS and demonstrate that the large impact uncertainty and variability can have on risk assessment.

  6. Dietary survey methodology of FINDIET 2007 with a risk assessment perspective.

    Science.gov (United States)

    Reinivuo, Heli; Hirvonen, Tero; Ovaskainen, Marja-Leena; Korhonen, Tommi; Valsta, Liisa M

    2010-06-01

    A cross-sectional survey, FINDIET 2007, was carried out in Finland. Food intake data was collected by a 48 h recall interview. Additional food intake data was collected by a repeated 3 d food diary, a barcode-based product diary, a food frequency questionnaire and by a supplementary questionnaire on rarely eaten foods. The purpose of the present paper is to describe the methodology of the national dietary survey and to discuss the particular implications for the applications of food consumption data in risk assessment. The food consumption data of the FINDIET 2007 survey can be used in food risk assessment, due thanks to flexible data processing of individual food consumption, and a risk assessment point of view was taken into account. However, international standardisation projects are needed in order to estimate comparable food intakes.

  7. The corneoscleral shell of the eye: potentials of assessing biomechanical parameters in normal and pathological conditions

    Directory of Open Access Journals (Sweden)

    E. N. Iomdina

    2016-01-01

    Full Text Available The paper reviews modern methods of evaluating the biomechanical properties of the corneoscleral shell of the eye that can be used both in the studies of the pathogenesis of various ophthalmic pathologies and in clinical practice. The biomechanical parameters of the cornea and the sclera have been shown to be diagnostically significant in assessing the risk of complications and the effectiveness of keratorefractive interventions, in the diagnosis and the prognosis of keratoconus, progressive myopia, or glaucoma. In clinical practice, a special device, Ocular Response Analyzer (ORA, has been used on a large scale. The analyzer is used to assess two parameters that characterize viscoelastic properties of the cornea — corneal hysteresis (CH and corneal resistance factor (CRF. Reduced levels of CH and CRF have been noted after eximer laser surgery, especially that administered to patients who demonstrate a regression in the refraction effect or suffer from keratoconus. This fact justifies the use of these biomechanical parameters as additional diagnostic criteria in the evaluation of the state of the cornea. At the same time, ORA data are shown to reflect the biomechanical response to the impact of the air pulse not only from the cornea alone but also from the whole corneoscleral capsule. This is probably the cause of reduced CH in children with progressive myopia and a weakened supportive function of the sclera, as well as such reduction in glaucomatous adult patients. It is hypothesized that a low CH value is a result of remodeling of the connective tissue matrix of the corneoscleral shell of the eye and can be an independent factor testifying to a risk of glaucoma progression. Reduced CH in primary open-angle glaucoma occurs in parallel with the development of pathological structural changes of the optic disc, and deterioration of visual fields, which is an evidence of a specific character and sensitivity of this parameter. The

  8. Global warming implications of facade parameters: A life cycle assessment of residential buildings in Bahrain

    Energy Technology Data Exchange (ETDEWEB)

    Radhi, Hassan, E-mail: h_alradhi@yahoo.com [Global Engineering Bureau, P.O Box 33130, Manama, Kingdom of Bahrain (Bahrain); Sharples, Stephen, E-mail: steve.sharples@liverpool.ac.uk [School of Architecture, University of Liverpool (United Kingdom)

    2013-01-15

    On a global scale, the Gulf Corporation Council Countries (GCCC), including Bahrain, are amongst the top countries in terms of carbon dioxide emissions per capita. Building authority in Bahrain has set a target of 40% reduction of electricity consumption and associated CO{sub 2} emissions to be achieved by using facade parameters. This work evaluates how the life cycle CO{sub 2} emissions of buildings are affected by facade parameters. The main focus is placed on direct and indirect CO{sub 2} emissions from three contributors, namely, chemical reactions during production processes (Pco{sub 2}), embodied energy (Eco{sub 2}) and operational energy (OPco{sub 2}). By means of the life cycle assessment (LCA) methodology, it has been possible to show that the greatest environmental impact occurs during the operational phase (80-90%). However, embodied CO{sub 2} emissions are an important factor that needs to be brought into the systems used for appraisal of projects, and hence into the design decisions made in developing projects. The assessment shows that masonry blocks are responsible for 70-90% of the total CO{sub 2} emissions of facade construction, mainly due to their physical characteristics. The highest Pco{sub 2} emissions factors are those of window elements, particularly aluminium frames. However, their contribution of CO{sub 2} emissions depends largely on the number and size of windows. Each square metre of glazing is able to increase the total CO{sub 2} emissions by almost 30% when compared with the same areas of opaque walls. The use of autoclaved aerated concrete (AAC) walls reduces the total life cycle CO{sub 2} emissions by almost 5.2% when compared with ordinary walls, while the use of thermal insulation with concrete wall reduces CO{sub 2} emissions by 1.2%. The outcome of this work offers to the building industry a reliable indicator of the environmental impact of residential facade parameters. - Highlights: Black-Right-Pointing-Pointer Life cycle

  9. Survey Methods for Seismic Vulnerability Assessment of Historical Masonry Buildings

    Science.gov (United States)

    Ballarin, M.; Balletti, C.; Faccio, P.; Guerra, F.; Saetta, A.; Vernier, P.

    2017-05-01

    On 20th and 29th of May 2012, two powerful earthquakes struck northern Italy. The epicentres were recorded respectively in Finale Emilia (magnitude 5.9 Ml) and Medolla (magnitude 5.8 Ml) in the province of Modena, though the earthquake was formed by a series of seismic shakes located in the district of the Emilian Po Valley, mainly in the provinces of Modena, Ferrara, Mantova, Reggio Emilia, Bologna and Rovigo. Many monuments in the city of Mantova were hit by the earthquake and, among these, Palazzo Ducale with the well-known Castello di San Giorgio which host the noteworthy "Camera degli Sposi". This building, the most famous of the city, was so damaged that it was closed for more than one year after the earthquake. The emblem of the Palace and Mantova itself, the previously cited "Camera degli Sposi" realized by Andrea Mantegna, was damaged and all the economic and social life of the city was deeply affected. Immediately after the earthquake, the Soprintendenza per i Beni Architettonici e Paesaggistici of Brescia, Cremona and Mantova establish an agreement with the University Iuav of Venice, requiring an analysis and assessment of the damage in order to proceed with the development of an intervention project. This activity turned out to be very important not only from the point of view of the recovery of the architectural and artistic heritage but also because the city's economy is based primarily on tourism. The closure of one of the most important monuments of Mantova has led to a significant and alarming decline in the government income.

  10. SURVEY METHODS FOR SEISMIC VULNERABILITY ASSESSMENT OF HISTORICAL MASONRY BUILDINGS

    Directory of Open Access Journals (Sweden)

    M. Ballarin

    2017-05-01

    Full Text Available On 20th and 29th of May 2012, two powerful earthquakes struck northern Italy. The epicentres were recorded respectively in Finale Emilia (magnitude 5.9 Ml and Medolla (magnitude 5.8 Ml in the province of Modena, though the earthquake was formed by a series of seismic shakes located in the district of the Emilian Po Valley, mainly in the provinces of Modena, Ferrara, Mantova, Reggio Emilia, Bologna and Rovigo. Many monuments in the city of Mantova were hit by the earthquake and, among these, Palazzo Ducale with the well-known Castello di San Giorgio which host the noteworthy “Camera degli Sposi”. This building, the most famous of the city, was so damaged that it was closed for more than one year after the earthquake. The emblem of the Palace and Mantova itself, the previously cited “Camera degli Sposi” realized by Andrea Mantegna, was damaged and all the economic and social life of the city was deeply affected. Immediately after the earthquake, the Soprintendenza per i Beni Architettonici e Paesaggistici of Brescia, Cremona and Mantova establish an agreement with the University Iuav of Venice, requiring an analysis and assessment of the damage in order to proceed with the development of an intervention project. This activity turned out to be very important not only from the point of view of the recovery of the architectural and artistic heritage but also because the city's economy is based primarily on tourism. The closure of one of the most important monuments of Mantova has led to a significant and alarming decline in the government income.

  11. Assessing Usefulness of High-Resolution Satellite Imagery (HRSI) for Re-Survey of Cadastral Maps

    Science.gov (United States)

    Rao, S. S.; Sharma, J. R.; Rajashekar, S. S.; Rao, D. S. P.; Arepalli, A.; Arora, V.; Kuldeep; Singh, R. P.; Kanaparthi, M.

    2014-11-01

    The Government of India has initiated "National Land Records Modernization Programme (NLRMP)" with emphasis to modernize management of land records, minimize scope of land/property disputes, enhance transparency in the land records maintenance system, and facilitate moving eventually towards guaranteed conclusive titles to immovable properties in the country. One of the major components of the programme is survey/re-survey and updating of all survey and settlement records including creation of original cadastral records wherever necessary. The use of ETS/GPS, Aerial or High Resolution Satellite Images (HRSI) and hybrid method of images are suggested for re-survey in the guidelines. The emerging new satellite technologies enabling earth observation at a spatial resolution of 1.0m or 0.5m or even 0.41m have brought revolutionary changes in the field of cadastral survey. The highresolution satellite imagery (HRSI) is showing its usefulness for cadastral surveys in terms of clear identification of parcel boundaries and other cultural features due to which traditional cadastre and land registration systems have been undergoing major changes worldwide. In the present research study, cadastral maps are derived from ETS/GPS, HRSI of 1.0m and 0.5m and used for comparison. The differences in areas, perimeter and position of parcels derived from HRSI are compared vis-a-vis ETS/GPS boundaries. An assessment has been made on the usefulness of HRSI for re-survey of cadastral maps vis-a-vis conventional ground survey.

  12. Assessing the oral health of an ageing population: methods, challenges and predictors of survey participation

    Science.gov (United States)

    Matthews, Debora C; Brillant, Martha G S; Clovis, Joanne B; McNally, Mary E; Filiaggi, Mark J; Kotzer, Robert D; Lawrence, Herenia P

    2012-01-01

    Assessing the oral health of an ageing population: methods, challenges and predictors of survey participation Objectives To examine predictors of participation and to describe the methodological considerations of conducting a two-stage population-based oral health survey. Methods An observational, cross-sectional survey (telephone interview and clinical oral examination) of community-dwelling adults aged 45–64 and ≥65 living in Nova Scotia, Canada was conducted. Results The survey response rate was 21% for the interview and 13.5% for the examination. A total of 1141 participants completed one or both components of the survey. Both age groups had higher levels of education than the target population; the age 45–64 sample also had a higher proportion of females and lower levels of employment than the target population. Completers (participants who completed interview and examination) were compared with partial completers (who completed only the interview), and stepwise logistic regression was performed to examine predictors of completion. Identified predictors were as follows: not working, post-secondary education and frequent dental visits. Conclusion Recruitment, communications and logistics present challenges in conducting a province-wide survey. Identification of employment, education and dental visit frequency as predictors of survey participation provide insight into possible non-response bias and suggest potential for underestimation of oral disease prevalence in this and similar surveys. This potential must be considered in analysis and in future recruitment strategies. PMID:21916953

  13. A Survey for Assessment of Role of Pharmacist in Community

    Directory of Open Access Journals (Sweden)

    P Kapur

    2009-12-01

    Full Text Available

    Objective: To assess the role of pharmacist in community setting & consumer’s perception in National Capital
    Region.
    Setting: The study was conducted in National Capital Region of India during the year 2003-04.
    Method: Four pharmacy shops were selected for this study which were not attached to any hospital or clinic. Seventy
    seven consumers, who visited these pharmacies during the study period, were selected for this study and
    interviewed just after they visited the pharmacy.
    Key findings: A total of 77 consumers in the age group of 11 to 72 years were included in the present study, of
    which 66.2% were males and 33.8% were females. It is observed that 46.7% consumers came for prescription
    medicines, 23.4% for over the counter medicines. Close to general physicians’ clinics and proximity to home
    were most important reasons given for visiting particular pharmacy. Majority of the consumers (n=56, 72.7%
    rated the advice given by the pharmacist as very useful, only 1(1.3% rated it as not useful at all and 2 (2.6%
    consumers did not respond. Among consumer groups 31 (40.3% thought that pharmacist has a good balance
    between health and business matter and 35.7% were in opinion that pharmacist is more concerned with making
    money, while 5.2% supported that the pharmacist is also interested in the health of his/her customers. The pharmacists
    were ranked at the top with 28(36.4% by the consumers and favoured pharmacy as the most convenient
    place to get advice about staying healthy.
    Conclusion: Most of the consumers in the present study were of the opinion that pharmacist is concerned with the
    health of the consumers, though he/she is also interested in making money. Many respondents were unaware
    about the difference between pharmacist and doctor, most of them consider

  14. Chemometrics quality assessment of wastewater treatment plant effluents using physicochemical parameters and UV absorption measurements.

    Science.gov (United States)

    Platikanov, S; Rodriguez-Mozaz, S; Huerta, B; Barceló, D; Cros, J; Batle, M; Poch, G; Tauler, R

    2014-07-01

    Chemometric techniques like Principal Component Analysis (PCA) and Partial Least Squares Regression (PLS) are used to explore, analyze and model relationships among different water quality parameters in wastewater treatment plants (WWTP). Different data sets generated by laboratory analysis and by an automatic multi-parametric monitoring system with a new designed optical device have been investigated for temporal variations on water quality parameters measured in the water influent and effluent of a WWTP over different time scales. The obtained results allowed the discovery of the more important relationships among the monitored parameters and of their cyclic dependence on time (daily, monthly and annual cycles) and on different plant management procedures. This study intended also the modeling and prediction of concentrations of several water components and parameters, especially relevant for water quality assessment, such as Dissolved Organic Matter (DOM), Total Organic Carbon (TOC) nitrate, detergent, and phenol concentrations. PLS models were built to correlate target concentrations of these constituents with UV spectra measured in samples collected at (1) laboratory conditions (in synthetic water mixtures); and at (2) WWTP conditions (in real water samples from the plant). Using synthetic water mixtures, specific wavelengths were selected with the aim to establish simple and reliable prediction models, which gave good relative predictions with errors of around 3-4% for nitrates, detergent and phenols concentrations and of around 15% for the DOM in external validation. In the case of nitrate and TOC concentrations modeling in real water samples from the effluent of the WWTP using the reduced spectral data set, results were also promising with low prediction errors (less than 20%).

  15. Trading Time with Space - Development of subduction zone parameter database for a maximum magnitude correlation assessment

    Science.gov (United States)

    Schaefer, Andreas; Wenzel, Friedemann

    2017-04-01

    Subduction zones are generally the sources of the earthquakes with the highest magnitudes. Not only in Japan or Chile, but also in Pakistan, the Solomon Islands or for the Lesser Antilles, subduction zones pose a significant hazard for the people. To understand the behavior of subduction zones, especially to identify their capabilities to produce maximum magnitude earthquakes, various physical models have been developed leading to a large number of various datasets, e.g. from geodesy, geomagnetics, structural geology, etc. There have been various studies to utilize this data for the compilation of a subduction zone parameters database, but mostly concentrating on only the major zones. Here, we compile the largest dataset of subduction zone parameters both in parameter diversity but also in the number of considered subduction zones. In total, more than 70 individual sources have been assessed and the aforementioned parametric data have been combined with seismological data and many more sources have been compiled leading to more than 60 individual parameters. Not all parameters have been resolved for each zone, since the data completeness depends on the data availability and quality for each source. In addition, the 3D down-dip geometry of a majority of the subduction zones has been resolved using historical earthquake hypocenter data and centroid moment tensors where available and additionally compared and verified with results from previous studies. With such a database, a statistical study has been undertaken to identify not only correlations between those parameters to estimate a parametric driven way to identify potentials for maximum possible magnitudes, but also to identify similarities between the sources themselves. This identification of similarities leads to a classification system for subduction zones. Here, it could be expected if two sources share enough common characteristics, other characteristics of interest may be similar as well. This concept

  16. Assessment of various parameters in the estimation of differential renal function using technetium-99m mercaptoacetyltriglycine

    Energy Technology Data Exchange (ETDEWEB)

    Lythgoe, M.F.; Gordon, I.; Khader, Z.; Smith, T.; Anderson, P.J. [Department of Radiology, Great Ormond Street Hospital for Children NHS Trust, London (United Kingdom)

    1999-02-01

    Differential renal function (DRF) is an important parameter that should be assessed from virtually every dynamic renogram. With the introduction of technetium-99m mercaptoacetyltriglycine ({sup 99m}Tc-MAG3), a tracer with a high renal extraction, the estimation of DRF might hopefully become accurate and reproducible both between observers in the same institution and also between institutions. The aim of this study was to assess the effect of different parameters on the estimation of DRF. To this end we investigated two groups of children: group A, comprising 35 children with a single kidney (27 of whom had poor renal function), and group B, comprising 20 children with two kidneys and normal global function who also had an associated {sup 99m}Tc-dimercaptosuccinic acid scan ({sup 99m}Tc-DMSA). The variables assessed for their effect on the estimation of DRF were: different operators, the choice of renal regions of interest (ROIs), the applied background subtraction, and six different techniques for analysis of the renogram. The six techniques were based on: linear regression of the slopes in the Rutland-Patlak plot, matrix deconvolution, differential method, integral method, linear regression of the slope of the renograms, and the area under the curve of the renogram. The estimation of DRF was less dependent upon both observer and method in patients with two normally functioning kidneys than in patients with a single kidney. The inter-observer comparison among children in either group was not dependent on either ROI or background subtraction. However, in patients with poor renal function the method of choice for the estimation of DRF was dependent on background subtraction, though not ROI. In children with two kidneys and normal renal function, the estimation of DRF from the 24 techniques gave similar results. Methods that produced DRF values closest to expected results, from either group of children, were the Rutland-Patlak plot and matrix deconvolution methods

  17. Use of CAHPS patient experience surveys to assess the impact of health care innovations.

    Science.gov (United States)

    Weinick, Robin M; Quigley, Denise D; Mayer, Lauren A; Sellers, Clarissa D

    2014-09-01

    The Consumer Assessment of Healthcare Providers and Systems (CAHPS) surveys are the standard for collecting information about patient experience of care in the United States. However, despite their widespread use, including in pay-for-performance and public reporting efforts and various provisions of the Affordable Care Act, knowledge about the use of CAHPS in assessing the impact of quality improvement efforts is limited. A study was conducted to examine the use of patient experience surveys in assessing the impact of innovations implemented in health care settings. Innovation profiles identified on the Agency for Healthcare Research and Quality (AHRQ) Health Care Innovations Exchange website that included patient experience (including patient satisfaction) as an outcome (N = 201), were analyzed with a variety of qualitative analysis methods. Fewer than half of the innovations used a patient experience measure, most commonly employing global measures such as an overall rating. Most innovations assessed patient experience at a single time point, with only one third using techniques such as pre-post comparisons, time trends, or comparisons to control groups. Ten domains of measures addressed reports of patient experience, all of which could be assessed by existing CAHPS instruments. Similarly, CAHPS measures are available to assess all of the organizational processes that are addressed by innovations in the profiles and for which patients are the best source of information. While 120 of the innovations that use patient experience measures report using surveys to collect these data, only 6 reported using a CAHPS measure. Although innovations targeting quality improvement are often evaluated using surveys, there is considerable untapped potential for using CAHPS measures or surveys to assess their effectiveness.

  18. Short assessment of the Big Five: robust across survey methods except telephone interviewing.

    Science.gov (United States)

    Lang, Frieder R; John, Dennis; Lüdtke, Oliver; Schupp, Jürgen; Wagner, Gert G

    2011-06-01

    We examined measurement invariance and age-related robustness of a short 15-item Big Five Inventory (BFI-S) of personality dimensions, which is well suited for applications in large-scale multidisciplinary surveys. The BFI-S was assessed in three different interviewing conditions: computer-assisted or paper-assisted face-to-face interviewing, computer-assisted telephone interviewing, and a self-administered questionnaire. Randomized probability samples from a large-scale German panel survey and a related probability telephone study were used in order to test method effects on self-report measures of personality characteristics across early, middle, and late adulthood. Exploratory structural equation modeling was used in order to test for measurement invariance of the five-factor model of personality trait domains across different assessment methods. For the short inventory, findings suggest strong robustness of self-report measures of personality dimensions among young and middle-aged adults. In old age, telephone interviewing was associated with greater distortions in reliable personality assessment. It is concluded that the greater mental workload of telephone interviewing limits the reliability of self-report personality assessment. Face-to-face surveys and self-administrated questionnaire completion are clearly better suited than phone surveys when personality traits in age-heterogeneous samples are assessed.

  19. A SURVEY OF THE PARAMETER SPACE OF THE COMPRESSIBLE LIQUID DROP MODEL AS APPLIED TO THE NEUTRON STAR INNER CRUST

    Energy Technology Data Exchange (ETDEWEB)

    Newton, W. G.; Gearheart, M.; Li Baoan, E-mail: william.newton@tamuc.edu [Department of Physics and Astronomy, Texas A and M University-Commerce, Commerce, TX 75429-3011 (United States)

    2013-01-15

    We present a systematic survey of the range of predictions of the neutron star inner crust composition, crust-core transition densities and pressures, and density range of the nuclear 'pasta' phases at the bottom of the crust provided by the compressible liquid drop model in light of the current experimental and theoretical constraints on model parameters. Using a Skyrme-like model for nuclear matter, we construct baseline sequences of crust models by consistently varying the density dependence of the bulk symmetry energy at nuclear saturation density, L, under two conditions: (1) that the magnitude of the symmetry energy at saturation density J is held constant, and (2) J correlates with L under the constraint that the pure neutron matter (PNM) equation of state (EoS) satisfies the results of ab initio calculations at low densities. Such baseline crust models facilitate consistent exploration of the L dependence of crustal properties. The remaining surface energy and symmetric nuclear matter parameters are systematically varied around the baseline, and different functional forms of the PNM EoS at sub-saturation densities implemented, to estimate theoretical 'error bars' for the baseline predictions. Inner crust composition and transition densities are shown to be most sensitive to the surface energy at very low proton fractions and to the behavior of the sub-saturation PNM EoS. Recent calculations of the energies of neutron drops suggest that the low-proton-fraction surface energy might be higher than predicted in Skyrme-like models, which our study suggests may result in a greatly reduced volume of pasta in the crust than conventionally predicted.

  20. Discussion of skill improvement in marine ecosystem dynamic models based on parameter optimization and skill assessment

    Science.gov (United States)

    Shen, Chengcheng; Shi, Honghua; Liu, Yongzhi; Li, Fen; Ding, Dewen

    2016-07-01

    Marine ecosystem dynamic models (MEDMs) are important tools for the simulation and prediction of marine ecosystems. This article summarizes the methods and strategies used for the improvement and assessment of MEDM skill, and it attempts to establish a technical framework to inspire further ideas concerning MEDM skill improvement. The skill of MEDMs can be improved by parameter optimization (PO), which is an important step in model calibration. An efficient approach to solve the problem of PO constrained by MEDMs is the global treatment of both sensitivity analysis and PO. Model validation is an essential step following PO, which validates the efficiency of model calibration by analyzing and estimating the goodness-of-fit of the optimized model. Additionally, by focusing on the degree of impact of various factors on model skill, model uncertainty analysis can supply model users with a quantitative assessment of model confidence. Research on MEDMs is ongoing; however, improvement in model skill still lacks global treatments and its assessment is not integrated. Thus, the predictive performance of MEDMs is not strong and model uncertainties lack quantitative descriptions, limiting their application. Therefore, a large number of case studies concerning model skill should be performed to promote the development of a scientific and normative technical framework for the improvement of MEDM skill.

  1. Assessment of cervical cancer with a parameter-free intravoxel incoherent motion imaging algorithm

    Energy Technology Data Exchange (ETDEWEB)

    Becker, Anton S.; Wurnig, Moritz C.; Boss, Andreas; Ghafoor, Soleen [Institute of Diagnostic and Interventional Radiology, University Hospital of Zurich, Zurich (Switzerland); Perucho, Jose A.; Khong, Pek Lan; Lee, Elaine Y. P. [Dept. of Diagnostic Radiology, The University of Hong Kong, Hong Kong (China)

    2017-06-15

    To evaluate the feasibility of a parameter-free intravoxel incoherent motion (IVIM) approach in cervical cancer, to assess the optimal b-value threshold, and to preliminarily examine differences in the derived perfusion and diffusion parameters for different histological cancer types. After Institutional Review Board approval, 19 female patients (mean age, 54 years; age range, 37–78 years) gave consent and were enrolled in this prospective magnetic resonance imaging study. Clinical staging and biopsy results were obtained. Echo-planar diffusion weighted sequences at 13 b-values were acquired at 3 tesla field strength. Single-sliced region-of-interest IVIM analysis with adaptive b-value thresholds was applied to each tumor, yielding the optimal fit and the optimal parameters for pseudodiffusion (D*), perfusion fraction (Fp) and diffusion coefficient (D). Monoexponential apparent diffusion coefficient (ADC) was calculated for comparison with D. Biopsy revealed squamous cell carcinoma in 10 patients and adenocarcinoma in 9. The b-value threshold (median [interquartile range]) depended on the histological type and was 35 (22.5–50) s/mm{sup 2} in squamous cell carcinoma and 150 (100–150) s/mm{sup 2} in adenocarcinoma (p < 0.05). Comparing squamous cell vs. adenocarcinoma, D* (45.1 [25.1–60.4] × 10{sup −3} mm{sup 2}/s vs. 12.4 [10.5–21.2] × 10{sup −3} mm{sup 2}/s) and Fp (7.5% [7.0–9.0%] vs. 9.9% [9.0–11.4%]) differed significantly between the subtypes (p < 0.02), whereas D did not (0.89 [0.75–0.94] × 10{sup −3} mm{sup 2}/s vs. 0.90 [0.82–0.97] × 10{sup −3} mm{sup 2}/s, p = 0.27). The residuals did not differ (0.74 [0.60–0.92] vs. 0.94 [0.67–1.01], p = 0.32). The ADC systematically underestimated the magnitude of diffusion restriction compared to D (p < 0.001). The parameter-free IVIM approach is feasible in cervical cancer. The b-value threshold and perfusion-related parameters depend on the tumor histology type.

  2. A two-part process for assessing the adequacy of hydrographic surveys and nautical chart coverage

    Science.gov (United States)

    Azuike, Chukwuma

    IHO Publication C-55 contains information about the progress of hydrographic surveying and nautical charting for littoral states. Listed primarily as percent coverage, it is difficult to use this information to determine: 1) if the current level of surveying or charting is adequate or in need of action, or 2) can be used to compare different locations. An analysis methodology has been developed to assess the adequacy of hydrographic surveying and nautical charting coverage. Indications of chart adequacy as depicted on charts or sailing directions are spatially correlated with significant maritime areas associated with navigational/national interest. However, an analysis based solely on these datasets is limited without access to the current depth information. Publically-available, multi-spectral satellite imagery can be used to derive estimates of bathymetry and provide information in previously unsurveyed areas. Preliminary results show that multi-spectral satellite remote sensing is potentially beneficial as a reconnaissance tool prior to a hydrographic survey.

  3. Forecasting Constraints on the Evolution of the Hubble Parameter and the Growth Function by Future Weak Lensing Surveys

    CERN Document Server

    Vollmer, Adrian

    2011-01-01

    The cosmological information encapsulated within a weak lensing signal can be accessed via the power spectrum of the so called convergence. We use the Fisher information matrix formalism with the convergence power spectrum as the observable to predict how future weak lensing surveys will constrain the expansion rate and the growth function as functions of redshift without using any specific model to parameterize these two quantities. To do this, we divide redshift space into bins and linearly interpolate the functions with the centers of the redshift bins as sampling points, using a fiducial set of parameters. At the same time, we use these redshift bins for power spectrum tomography, where we analyze not only the power spectrum in each bin but also their cross-correlation in order to maximize the extracted information. We find that a small number of bins with the given photometric redshift mea- surement precision is sufficient to access most of the information content and that the projected constraints are c...

  4. Evaluation of a Brief Survey Instrument for Assessing Subtle Differences in Cognitive Function Among Older Adults.

    Science.gov (United States)

    Kotwal, Ashwin A; Schumm, Philip; Kern, David W; McClintock, Martha K; Waite, Linda J; Shega, Joseph W; Huisingh-Scheetz, Megan J; Dale, William

    2015-01-01

    Most measures of cognitive function used in large-scale surveys of older adults have limited ability to detect subtle differences across cognitive domains, and standard clinical instruments are impractical to administer in general surveys. The Montreal Cognitive Assessment (MoCA) can address this need, but has limitations in a survey context. Therefore, we developed a survey adaptation of the MoCA, called the MoCA-SA, and describe its psychometric properties in a large national survey. Using a pretest sample of older adults (n=120), we reduced MoCA administration time by 26%, developed a model to accurately estimate full MoCA scores from the MoCA-SA, and tested the model in an independent clinical sample (n=93). The validated 18-item MoCA-SA was then administered to community-dwelling adults aged 62 to 91 as part of the National Social life Health and Aging Project Wave 2 sample (n=3196). In National Social life Health and Aging Project Wave 2, the MoCA-SA had good internal reliability (Cronbach α=0.76). Using item-response models, survey-adapted items captured a broad range of cognitive abilities and functioned similarly across sex, education, and ethnic groups. Results demonstrate that the MoCA-SA can be administered reliably in a survey setting while preserving sensitivity to a broad range of cognitive abilities and similar performance across demographic subgroups.

  5. Assessing Tillage Effects on Soil Hydraulic Properties via Inverse Parameter Estimation using Tension Infiltrometry

    Science.gov (United States)

    Schwen, Andreas; Bodner, Gernot; Loiskandl, Willibald

    2010-05-01

    Hydraulic properties are key factors controlling water and solute movement in soils. While several recent studies have focused on the assessment of the spatial variability of hydraulic properties, the temporal dynamics are commonly not taken into account, primarily because its measurement is costly and time-consuming. However, there is extensive empirical evidence that these properties are subject to temporal changes, particularly in the near-saturated range where soil structure strongly influences water flow. One main source of temporal variability is soil tillage. It can improve macroporosity by loosening the soil and thereby changing the pore-size distribution. Since these modifications are quite unstable over time, the pore space partially collapses after tillage. This effect should be largest for conventional tillage (CT), where the soil is ploughed after harvest every year. Assessing the effect of different tillage treatments on the temporal variability of hydraulic properties requires adequate measurement techniques. Tension infiltrometry has become a popular and convenient method providing not only the hydraulic conductivity function but also the soil rentention properties. The inverse estimation of parameters from infiltration measurements remains challenging, despite some progress since the first approach of Šimůnek et al. (1998). Measured data like the cumulative infiltration, the initial and final volumetric water content, as well as independently measured retention data from soil core analysis with laboratory methods, have to be considered to find an optimum solution describing the soil's pore space. In the present study we analysed tension infiltration measurements obtained several times between August 2008 and December 2009 on an arable field in the Moravian Basin, Lower Austria. The tillage treatments were conventional tillage including ploughing (CT), reduced tillage with chisel only (RT), and no-tillage treatment using a direct seeding

  6. Somatosensory evoked potentials in the assessment of peripheral neuropathies: Commented results of a survey among French-speaking practitioners and recommendations for practice.

    Science.gov (United States)

    Morizot-Koutlidis, R; André-Obadia, N; Antoine, J-C; Attarian, S; Ayache, S S; Azabou, E; Benaderette, S; Camdessanché, J-P; Cassereau, J; Convers, P; d'Anglejean, J; Delval, A; Durand, M-C; Etard, O; Fayet, G; Fournier, E; Franques, J; Gavaret, M; Guehl, D; Guerit, J-M; Krim, E; Kubis, N; Lacour, A; Lozeron, P; Mauguière, F; Merle, P-E; Mesrati, F; Mutschler, V; Nicolas, G; Nordine, T; Pautot, V; Péréon, Y; Petiot, P; Pouget, J; Praline, J; Salhi, H; Trébuchon, A; Tyvaert, L; Vial, C; Zola, J-M; Zyss, J; Lefaucheur, J-P

    2015-05-01

    Somatosensory evoked potentials (SSEPs) are increasingly performed for the assessment of peripheral neuropathies, but no practical guidelines have yet been established in this specific application. To determine the relevant indication criteria and optimal technical parameters for SSEP recording in peripheral neuropathy investigation. A survey was conducted among the French-speaking practitioners with experience of SSEP recording in the context of peripheral neuropathies. The results of the survey were analyzed and discussed to provide recommendations for practice. SSEPs appear to be a second-line test when electroneuromyographic investigation is not sufficiently conclusive, providing complementary and valuable information on central and proximal peripheral conduction in the somatosensory pathways. Guidelines for a standardized recording protocol, including the various parameters to be measured, are proposed. We hope that these proposals will help to recognize the value of this technique in peripheral neuropathy assessment in clinical practice. Copyright © 2015 Elsevier Masson SAS. All rights reserved.

  7. Life cycle assessment in green chemistry: overview of key parameters and methodological concerns

    DEFF Research Database (Denmark)

    Tufvesson, Linda M.; Tufvesson, Pär; Woodley, John

    2013-01-01

    Several articles within the area of green chemistry often promote new techniques or products as ‘green’ or ‘more environmentally benign’ than their conventional counterpart although these articles often do not quantitatively assess the environmental performance. In order to do this, life cycle...... with the purpose to reduce the time-consuming steps in LCA.In this review, several LCAs of so-called ‘green chemicals’ are analysed and key parameters and methodological concerns are identified. Further, some conclusions on the environmental performance of chemicals were drawn.For fossil-based platform chemicals...... several LCAs exists but for chemicals produced with industrial biotechnology or from renewable resources the number of LCAs is limited, with the exception of biofuels, for which a large number of studies are made. In the review, a significant difference in the environmental performance of bulk and fine...

  8. Proceedings of the scientific meeting on `parameters for assessing the mobility of trace substances in the environment`

    Energy Technology Data Exchange (ETDEWEB)

    Fukui, Masami; Fujinawa, Katsuyuki [eds.

    1996-04-01

    This issue is the collection of the paper presented at the title meeting on `parameters for assessing the mobility of trace substances in the environment`. The 18 of the presented papers are indexed individually. (J.P.N.)

  9. Diagnostic performance of various cephalometric parameters for the assessment of vertical growth pattern

    Directory of Open Access Journals (Sweden)

    Maheen Ahmed

    Full Text Available ABSTRACT Introduction: Multiple cephalometric analyses are used to diagnose vertical skeletal facial discrepancy. A multitude of times, these parameters show conflicting results, and a specific diagnosis is hard to reach. Objective: Hence, this study aimed to identify the skeletal analysis that performs best for the identification of vertical skeletal pattern in borderline cases. Methods: The sample consisted of 161 subjects (71 males and 90 females; mean age = 23.6 ± 4.6 years. Y-axis, Sella-Nasion to mandibular plane angle (SN.MP, maxillary plane to mandibular plane angle (MMA, Sella-Nasion to Gonion-Gnathion angle (SN.GoGn, Frankfort to mandibular plane angle (FMA, R-angle and facial height ratio (LAFH.TAFH were used to evaluate vertical growth pattern on lateral cephalograms. The subjects were divided into three groups (hypodivergent, normodivergent and hyperdivergent groups, as indicated by the diagnostic results of the majority of parameters. Kappa statistics was applied to compare the diagnostic accuracy of various analyses. To further validate the results, sensitivity and positive predictive values (PPV for each parameter were also calculated. Results: SN.GoGn showed a substantial interclass agreement (k = 0.850. In the hypodivergent group, MMA showed the highest sensitivity (0.934, whereas FMA showed the highest PPV (0.964. In the normodivergent group, FMA showed the highest sensitivity (0.909 and SN.GoGn had the highest PPV (0.903. SN.GoGn showed the highest sensitivity (0.980 and PPV (0.87 in the hyperdivergent group. Conclusions: SN.GoGn and FMA were found to be the most reliable indicators, whereas LAFH.TAFH is the least reliable indicator in assessing facial vertical growth pattern. Hence, the cephalometric analyses may be limited to fewer analyses of higher diagnostic performance.

  10. Diagnostic performance of various cephalometric parameters for the assessment of vertical growth pattern

    Science.gov (United States)

    Ahmed, Maheen; Shaikh, Attiya; Fida, Mubassar

    2016-01-01

    ABSTRACT Introduction: Multiple cephalometric analyses are used to diagnose vertical skeletal facial discrepancy. A multitude of times, these parameters show conflicting results, and a specific diagnosis is hard to reach. Objective: Hence, this study aimed to identify the skeletal analysis that performs best for the identification of vertical skeletal pattern in borderline cases. Methods: The sample consisted of 161 subjects (71 males and 90 females; mean age = 23.6 ± 4.6 years). Y-axis, Sella-Nasion to mandibular plane angle (SN.MP), maxillary plane to mandibular plane angle (MMA), Sella-Nasion to Gonion-Gnathion angle (SN.GoGn), Frankfort to mandibular plane angle (FMA), R-angle and facial height ratio (LAFH.TAFH) were used to evaluate vertical growth pattern on lateral cephalograms. The subjects were divided into three groups (hypodivergent, normodivergent and hyperdivergent groups), as indicated by the diagnostic results of the majority of parameters. Kappa statistics was applied to compare the diagnostic accuracy of various analyses. To further validate the results, sensitivity and positive predictive values (PPV) for each parameter were also calculated. Results: SN.GoGn showed a substantial interclass agreement (k = 0.850). In the hypodivergent group, MMA showed the highest sensitivity (0.934), whereas FMA showed the highest PPV (0.964). In the normodivergent group, FMA showed the highest sensitivity (0.909) and SN.GoGn had the highest PPV (0.903). SN.GoGn showed the highest sensitivity (0.980) and PPV (0.87) in the hyperdivergent group. Conclusions: SN.GoGn and FMA were found to be the most reliable indicators, whereas LAFH.TAFH is the least reliable indicator in assessing facial vertical growth pattern. Hence, the cephalometric analyses may be limited to fewer analyses of higher diagnostic performance. PMID:27653263

  11. Impact of spatial and temporal aggregation of input parameters on the assessment of irrigation scheme performance

    Science.gov (United States)

    Lorite, I. J.; Mateos, L.; Fereres, E.

    2005-01-01

    SummaryThe simulations of dynamic, spatially distributed non-linear models are impacted by the degree of spatial and temporal aggregation of their input parameters and variables. This paper deals with the impact of these aggregations on the assessment of irrigation scheme performance by simulating water use and crop yield. The analysis was carried out on a 7000 ha irrigation scheme located in Southern Spain. Four irrigation seasons differing in rainfall patterns were simulated (from 1996/1997 to 1999/2000) with the actual soil parameters and with hypothetical soil parameters representing wider ranges of soil variability. Three spatial aggregation levels were considered: (I) individual parcels (about 800), (II) command areas (83) and (III) the whole irrigation scheme. Equally, five temporal aggregation levels were defined: daily, weekly, monthly, quarterly and annually. The results showed little impact of spatial aggregation in the predictions of irrigation requirements and of crop yield for the scheme. The impact of aggregation was greater in rainy years, for deep-rooted crops (sunflower) and in scenarios with heterogeneous soils. The highest impact on irrigation requirement estimations was in the scenario of most heterogeneous soil and in 1999/2000, a year with frequent rainfall during the irrigation season: difference of 7% between aggregation levels I and III was found. Equally, it was found that temporal aggregation had only significant impact on irrigation requirements predictions for time steps longer than 4 months. In general, simulated annual irrigation requirements decreased as the time step increased. The impact was greater in rainy years (specially with abundant and concentrated rain events) and in crops which cycles coincide in part with the rainy season (garlic, winter cereals and olive). It is concluded that in this case, average, representative values for the main inputs of the model (crop, soil properties and sowing dates) can generate results

  12. Examining the Reliability and Validity of the Effective Behavior Support Self-Assessment Survey

    Science.gov (United States)

    Solomon, Benjamin G.; Tobin, Kevin G.; Schutte, Gregory M.

    2015-01-01

    The Effective Behavior Support Self-Assessment Survey (SAS; Sugai, Horner, & Todd, 2003) is designed to measure perceived Positive Behavior Interventions and Supports (PBIS) implementation and identify priorities for improvement. Despite its longevity, little published research exists documenting its reliability or validity for these purposes.…

  13. Teachers' Reasons for Using Self-Assessment: A Survey Self-Report of Spanish Teachers

    Science.gov (United States)

    Panadero, Ernesto; Brown, Gavin; Courtney, Matthew

    2014-01-01

    The study aimed to explore teachers' beliefs about student self-assessment (SSA) and the reasons for their use of it in their classrooms. A representative sample of 944 Spanish teachers (38.8% primary school sector, 54.0% secondary school sector and 7.2% university or adult education sector) were surveyed about SSA. Data were analysed using…

  14. Investigating Faculty Familiarity with Assessment Terminology by Applying Cluster Analysis to Interpret Survey Data

    Science.gov (United States)

    Raker, Jeffrey R.; Holme, Thomas A.

    2014-01-01

    A cluster analysis was conducted with a set of survey data on chemistry faculty familiarity with 13 assessment terms. Cluster groupings suggest a high, middle, and low overall familiarity with the terminology and an independent high and low familiarity with terms related to fundamental statistics. The six resultant clusters were found to be…

  15. Surveying Teens in School to Assess the Prevalence of Problematic Drug Use

    Science.gov (United States)

    Falck, Russel S.; Nahhas, Ramzi W.; Li, Linna; Carlson, Robert G.

    2012-01-01

    Background: Illicit drug use by school-aged teens can adversely affect their health and academic achievement. This study used a survey administered in schools to assess the prevalence of problematic drug use among teenagers in a Midwestern community. Methods: Self-report data were collected from 11th- and 12th-grade students (N = 3974) in 16…

  16. Investigating Faculty Familiarity with Assessment Terminology by Applying Cluster Analysis to Interpret Survey Data

    Science.gov (United States)

    Raker, Jeffrey R.; Holme, Thomas A.

    2014-01-01

    A cluster analysis was conducted with a set of survey data on chemistry faculty familiarity with 13 assessment terms. Cluster groupings suggest a high, middle, and low overall familiarity with the terminology and an independent high and low familiarity with terms related to fundamental statistics. The six resultant clusters were found to be…

  17. Career Preparedness Survey Outcomes of Food Science Graduates--A Follow-Up Assessment

    Science.gov (United States)

    Bohlscheid, Jeffri; Clark, Stephanie

    2012-01-01

    Fifty-eight recent graduates (1998-2008) from the joint Washington State University (WSU) and University of Idaho (UI) BiState School of Food Science program and 27 of their employers participated in a survey assessing learning outcomes based on the 2001 Institute of Food Technologists (IFT) core competencies for undergraduate food science…

  18. Life cycle assessment and residue leaching: the importance of parameter, scenario and leaching data selection.

    Science.gov (United States)

    Allegrini, E; Butera, S; Kosson, D S; Van Zomeren, A; Van der Sloot, H A; Astrup, T F

    2015-04-01

    Residues from industrial processes and waste management systems (WMSs) have been increasingly reutilised, leading to landfilling rate reductions and the optimisation of mineral resource utilisation in society. Life cycle assessment (LCA) is a holistic methodology allowing for the analysis of systems and products and can be applied to waste management systems to identify environmental benefits and critical aspects thereof. From an LCA perspective, residue utilisation provides benefits such as avoiding the production and depletion of primary materials, but it can lead to environmental burdens, due to the potential leaching of toxic substances. In waste LCA studies where residue utilisation is included, leaching has generally been neglected. In this study, municipal solid waste incineration bottom ash (MSWI BA) was used as a case study into three LCA scenarios having different system boundaries. The importance of data quality and parameter selection in the overall LCA results was evaluated, and an innovative method to assess metal transport into the environment was applied, in order to determine emissions to the soil and water compartments for use in an LCA. It was found that toxic impacts as a result of leaching were dominant in systems including only MSWI BA utilisation, while leaching appeared negligible in larger scenarios including the entire waste system. However, leaching could not be disregarded a priori, due to large uncertainties characterising other activities in the scenario (e.g. electricity production). Based on the analysis of relevant parameters relative to leaching, and on general results of the study, recommendations are provided regarding the use of leaching data in LCA studies. Copyright © 2014 Elsevier Ltd. All rights reserved.

  19. Assessing Malaria Risks in Greater Mekong Subregion based on Environmental Parameters

    Science.gov (United States)

    Kiang, Richard; Soika, Valerii; Adimi, Farida; Nigro, Joseph

    2005-01-01

    At 4,200 km, the Mekong River is the tenth longest river in the world. It directly and indirectly influences the lives of hundreds of millions of inhabitants in its basin. The riparian countries - Thailand, Myanmar, Cambodia, Laos, Vietnam, and a small part of China - form the Greater Mekong Subregion (GMS). This geographical region has the misfortune of being the world's epicenter of falciparum malaria, which is the most severe form of malaria caused by Plasmodium falciparum. Depending on the country, approximately 50 to 90% of all malaria cases are due to this species. In the Malaria Modeling and Surveillance Project, we have been developing techniques to enhance public health s decision capability for malaria risk assessments and controls. The main objectives are: 1) identifying the potential breeding sites for major vector species; 2) implementing a malaria transmission model to identify the key factors that sustain or intensify malaria transmission; and 3) implementing a risk algorithm to predict the occurrence of malaria and its transmission intensity. The potential benefits are: 1) increased warning time for public health organizations to respond to malaria outbreaks; 2) optimized utilization of pesticide and chemoprophylaxis; 3) reduced likelihood of pesticide and drug resistance; and 4) reduced damage to environment. Environmental parameters important to malaria transmission include temperature, relative humidity, precipitation, and vegetation conditions. The NASA Earth science data sets that have been used for malaria surveillance and risk assessment include AVHRR Pathfinder, TRMM, MODIS, NSIPP, and SIESIP. Hindcastings based on these environmental parameters have shown good agreement to epidemiological records. Socioeconomic factors that may influence malaria transmissions will also be incorporated into the predictive models.

  20. Assessing Malaria Risks in Greater Mekong Subregion based on Environmental Parameters

    Science.gov (United States)

    Kiang, Richard; Soika, Valerii; Adimi, Farida; Nigro, Joseph

    2005-01-01

    At 4,200 km, the Mekong River is the tenth longest river in the world. It directly and indirectly influences the lives of hundreds of millions of inhabitants in its basin. The riparian countries - Thailand, Myanmar, Cambodia, Laos, Vietnam, and a small part of China - form the Greater Mekong Subregion (GMS). This geographical region has the misfortune of being the world's epicenter of falciparum malaria, which is the most severe form of malaria caused by Plasmodium falciparum. Depending on the country, approximately 50 to 90% of all malaria cases are due to this species. In the Malaria Modeling and Surveillance Project, we have been developing techniques to enhance public health s decision capability for malaria risk assessments and controls. The main objectives are: 1) identifying the potential breeding sites for major vector species; 2) implementing a malaria transmission model to identify the key factors that sustain or intensify malaria transmission; and 3) implementing a risk algorithm to predict the occurrence of malaria and its transmission intensity. The potential benefits are: 1) increased warning time for public health organizations to respond to malaria outbreaks; 2) optimized utilization of pesticide and chemoprophylaxis; 3) reduced likelihood of pesticide and drug resistance; and 4) reduced damage to environment. Environmental parameters important to malaria transmission include temperature, relative humidity, precipitation, and vegetation conditions. The NASA Earth science data sets that have been used for malaria surveillance and risk assessment include AVHRR Pathfinder, TRMM, MODIS, NSIPP, and SIESIP. Hindcastings based on these environmental parameters have shown good agreement to epidemiological records. Socioeconomic factors that may influence malaria transmissions will also be incorporated into the predictive models.

  1. Impact Assessment of Effective Parameters on Drivers' Attention Level to Urban Traffic Signs

    Science.gov (United States)

    Kazemi, Mojtaba; Rahimi, Amir Masoud; Roshankhah, Sheida

    2016-03-01

    Traffic signs are one of the oldest safety and traffic control equipments. Drivers' reaction to installed signs is an important issue that could be studied using statistical models developed for target groups. There are 527 questionnaires have been filled up randomly in 45 days, some by drivers passing two northern cities of Iran and some by e-mail. Therefore, minimum sample size of 384 is fulfilled. In addition, Cronbach Alpha of more than 90 % verifies the questionnaire's validity. Ordinal logistic regression is used for 5-level answer variables. This relatively novel method predicts probability of different cases' considering other effective independent variables. There are 18 parameters of factor, man, vehicle, and environment are assessed and 5 parameters of number of accidents in last 5 years, occupation, driving time, number of accidents per day, and driving speed are eventually found as the most important ones. Age and gender, that are considered as key factors in other safety and accident studies, are not recognized as effective ones in this paper. The results could be useful for safety planning programs.

  2. Bayesian Assessment of the Uncertainties of Estimates of a Conceptual Rainfall-Runoff Model Parameters

    Science.gov (United States)

    Silva, F. E. O. E.; Naghettini, M. D. C.; Fernandes, W.

    2014-12-01

    This paper evaluated the uncertainties associated with the estimation of the parameters of a conceptual rainfall-runoff model, through the use of Bayesian inference techniques by Monte Carlo simulation. The Pará River sub-basin, located in the upper São Francisco river basin, in southeastern Brazil, was selected for developing the studies. In this paper, we used the Rio Grande conceptual hydrologic model (EHR/UFMG, 2001) and the Markov Chain Monte Carlo simulation method named DREAM (VRUGT, 2008a). Two probabilistic models for the residues were analyzed: (i) the classic [Normal likelihood - r ≈ N (0, σ²)]; and (ii) a generalized likelihood (SCHOUPS & VRUGT, 2010), in which it is assumed that the differences between observed and simulated flows are correlated, non-stationary, and distributed as a Skew Exponential Power density. The assumptions made for both models were checked to ensure that the estimation of uncertainties in the parameters was not biased. The results showed that the Bayesian approach proved to be adequate to the proposed objectives, enabling and reinforcing the importance of assessing the uncertainties associated with hydrological modeling.

  3. STUDY OF POND WATER QUALITY BY THE ASSESSMENT OF PHYSICOCHEMICAL PARAMETERS AND WATER QUALITY INDEX

    Directory of Open Access Journals (Sweden)

    Vinod Jena

    2013-02-01

    Full Text Available Water quality index (WQI is a dimensionless number that combines multiple water quality factors into a single number by normalizing values to subjective rating curves. Conventionally it has been used for evaluating the quality of water for water resources suchas rivers, streams and lakes, etc. The present work is aimed at assessing the Water Quality Index (W.Q.I ofpond water and the impact of human activities on it. Physicochemical parameters were monitored for the calculation of W.Q.I for the rainy, winter and summer seasons. The parameters namely pH, Total hardness, TDS,Calcium, Chloride, Sulphate, Sodium, Potassium, EC and DO values were within the permissible limits on the other hand total alkalinities and magnesium values were exceeding the permissible limits as prescribed by IndianStandards. However, the W.Q.I values in the present investigation were reported to be 83.43, 76.598 and 91.52 for different season indicating that the pond water quality is very poor and not totally safe for human consumption.

  4. Target Rotations and Assessing the Impact of Model Violations on the Parameters of Unidimensional Item Response Theory Models

    Science.gov (United States)

    Reise, Steven; Moore, Tyler; Maydeu-Olivares, Alberto

    2011-01-01

    Reise, Cook, and Moore proposed a "comparison modeling" approach to assess the distortion in item parameter estimates when a unidimensional item response theory (IRT) model is imposed on multidimensional data. Central to their approach is the comparison of item slope parameter estimates from a unidimensional IRT model (a restricted model), with…

  5. Assessment of the reliability of neutronic parameters of Ghana Research Reactor-1 control systems

    Energy Technology Data Exchange (ETDEWEB)

    Amponsah-Abu, E.O., E-mail: edwardabu2002@yahoo.com [National Nuclear Research Institute, Ghana Atomic Energy Commission, P.O. Box LG. 80, Legon-Accra (Ghana); Gbadago, J.K. [National Nuclear Research Institute, Ghana Atomic Energy Commission, P.O. Box LG. 80, Legon-Accra (Ghana); Akaho, E.H.K.; Akoto-Bamford, S. [School of Nuclear and Allied Sciences, University of Ghana (Ghana); Gyamfi, K.; Asamoah, M.; Baidoo, I.K. [National Nuclear Research Institute, Ghana Atomic Energy Commission, P.O. Box LG. 80, Legon-Accra (Ghana)

    2015-01-15

    Highlights: • The reliability of neutronics parameters of GHARR-I was assessed. • The reactor was operated at different power levels of 5–30 kW. • The pre-set flux was compared with the flux in the inner irradiation site. • Decrease in the core reactivity caused difference in flux on the meters and site. • Neutronic parameters become reliable when operation is done at reactivity of 4 mk. - Abstract: The Ghana Research Reactor-1 (GHARR-1) has been in operation for the past 19 years using a Micro-Computer Closed Loop System (MCCLS) and Control Console (CC) as the control systems. The two control systems were each coupled separately with a micro-fission chamber to measure the current pulses of the neutron fluxes in the core at excess reactivity of 4 mk. The MCCLS and CC meter readings at a pre-set flux of 5.0 × 10{sup 11} n/cm{sup 2} s were 6.42 × 10{sup 11} n/cm{sup 2} s and 5.0 × 10{sup 11} n/cm{sup 2} s respectively. Due to ageing and obsolescence, the MCCLS and some components that control the sensitivity and the reading mechanism of the meters were replaced. One of the fission chambers was also removed and the two control systems were coupled to one fission chamber. The reliability of the neutronic parameters of the control systems was assessed after the replacement. The results showed that when the reactor is operated at different power levels of 5–30 kW using one micro-fission chamber, the pre-set neutron fluxes at the control systems is 1.6 times the neutron fluxes obtained using a flux monitor at the inner irradiation site two of the reactor. The average percentage deviations of the obtained fluxes from the pre-set values of 1.67 × 10{sup 11}–1.0 × 10{sup 12} n/cm{sup 2} s were 36.5%. This compares very well with the decrease in core excess reactivity of 36.3% of the nominal value of 4 mk, after operating the reactor at critical neutron flux of 1.0 × 10{sup 9} n/cm{sup 2} s.

  6. Developing and validating a conceptual survey to assess introductory physics students’ understanding of magnetism

    Science.gov (United States)

    Li, Jing; Singh, Chandralekha

    2017-03-01

    Development of validated physics surveys on various topics is important for investigating the extent to which students master those concepts after traditional instruction and for assessing innovative curricula and pedagogies that can improve student understanding significantly. Here, we discuss the development and validation of a conceptual multiple-choice survey related to magnetism suitable for introductory physics courses. The survey was developed taking into account common students’ difficulties with magnetism concepts covered in introductory physics courses found in our investigation and the incorrect choices to the multiple-choice questions were designed based upon those common student difficulties. After the development and validation of the survey, it was administered to introductory physics students in various classes in paper-pencil format before and after traditional lecture-based instruction in relevant concepts. We compared the performance of students on the survey in the algebra-based and calculus-based introductory physics courses before and after traditional lecture-based instruction in relevant magnetism concepts. We discuss the common difficulties of introductory physics students with magnetism concepts we found via the survey. We also administered the survey to upper-level undergraduates majoring in physics and PhD students to benchmark the survey and compared their performance with those of traditionally taught introductory physics students for whom the survey is intended. A comparison with the base line data on the validated magnetism survey from traditionally taught introductory physics courses and upper-level undergraduate and PhD students discussed in this paper can help instructors assess the effectiveness of curricula and pedagogies which is especially designed to help students integrate conceptual and quantitative understanding and develop a good grasp of the concepts. In particular, if introductory physics students’ average

  7. A practical method to assess model sensitivity and parameter uncertainty in C cycle models

    Science.gov (United States)

    Delahaies, Sylvain; Roulstone, Ian; Nichols, Nancy

    2015-04-01

    The carbon cycle combines multiple spatial and temporal scales, from minutes to hours for the chemical processes occurring in plant cells to several hundred of years for the exchange between the atmosphere and the deep ocean and finally to millennia for the formation of fossil fuels. Together with our knowledge of the transformation processes involved in the carbon cycle, many Earth Observation systems are now available to help improving models and predictions using inverse modelling techniques. A generic inverse problem consists in finding a n-dimensional state vector x such that h(x) = y, for a given N-dimensional observation vector y, including random noise, and a given model h. The problem is well posed if the three following conditions hold: 1) there exists a solution, 2) the solution is unique and 3) the solution depends continuously on the input data. If at least one of these conditions is violated the problem is said ill-posed. The inverse problem is often ill-posed, a regularization method is required to replace the original problem with a well posed problem and then a solution strategy amounts to 1) constructing a solution x, 2) assessing the validity of the solution, 3) characterizing its uncertainty. The data assimilation linked ecosystem carbon (DALEC) model is a simple box model simulating the carbon budget allocation for terrestrial ecosystems. Intercomparison experiments have demonstrated the relative merit of various inverse modelling strategies (MCMC, ENKF) to estimate model parameters and initial carbon stocks for DALEC using eddy covariance measurements of net ecosystem exchange of CO2 and leaf area index observations. Most results agreed on the fact that parameters and initial stocks directly related to fast processes were best estimated with narrow confidence intervals, whereas those related to slow processes were poorly estimated with very large uncertainties. While other studies have tried to overcome this difficulty by adding complementary

  8. Assessment of parameters describing representativeness of air quality in-situ measurement sites

    Directory of Open Access Journals (Sweden)

    S. Henne

    2010-04-01

    Full Text Available The atmospheric layer closest to the ground is strongly influenced by variable surface fluxes (emissions, surface deposition and can therefore be very heterogeneous. In order to perform air quality measurements that are representative of a larger domain or a certain degree of pollution, observatories are placed away from population centres or within areas of specific population density. Sites are often categorised based on subjective criteria that are not uniformly applied by the atmospheric community within different administrative domains yielding an inconsistent global air quality picture. A novel approach for the assessment of parameters reflecting site representativeness is presented here, taking emissions, deposition and transport towards 34 sites covering Western and Central Europe into account. These parameters are directly inter-comparable among the sites and can be used to select sites that are, on average, more or less suitable for data assimilation and comparison with satellite and model data. Advection towards these sites was simulated by backward Lagrangian Particle Dispersion Modelling (LPDM to determine the sites' average catchment areas for the year 2005 and advection times of 12, 24 and 48 h. Only variations caused by emissions and transport during these periods were considered assuming that these dominate the short-term variability of most but especially short lived trace gases. The derived parameters describing representativeness were compared between sites and a novel, uniform and observation-independent categorisation of the sites based on a clustering approach was established. Six groups of European background sites were identified ranging from generally remote to more polluted agglomeration sites. These six categories explained 50 to 80% of the inter-site variability of median mixing ratios and their standard deviation for NO2 and O3, while differences between group means of the longer

  9. Assessment of equatorial F2-region peak parameters predictability using the IRI model

    Science.gov (United States)

    Oyekola, Oyedemi S.

    2012-07-01

    Overall behaviour of the F2-layer is believed to be described by the F2-layer peak parameters, which depend on various geophysical parameters including local time, season, solar and geomagnetic activity conditions. A better understanding of the variability and modeling of ionospheric peak characteristics is crucial for the development of ionospheric prediction capabilities, improvements in existing ionospheric models, and for radio propagation studies. The International Reference Ionosphere (IRI) model is used to assess the predictability of F2-region parameters and to validate F2-peak parameters simulation near the dip equator. We examine the main morphological patterns and climatological behaviour of equatorial F2 region over African sector using hourly observational values of F2 peak height of maximum electron density (hmF2), F2 layer peak electron density (NmF2), and propagation factor (M3000F2) hitherto made by the Ibadan ionosonde at 7.4oN, 3.9oE, dip latitude 2.3oS, in Nigeria; between January to December 1958, during a period of high solar activity (yearly averaged R12=190 units) and magnetically quiet conditions (Kp is less or equal to 3). The results of comparisons illustrate that good advancement has been made but reveal some important discrepancies. The trends in the experimental data are found to be in excellent agreement with the trends in the simulation results for maximum electron density and propagation factor, but fair-to-good for F2 layer peak altitude. The model is unable to capture the sharp postsunset and predawn enhancements in hmF2 and M3000F2, respectively. The model results have errors ranging from approximately 8-15 percent, 9-17 percent, and 3-5 percent, respectively, for hmF2, NmF2, and M3000F2. On average, the percent absolute relative difference of the model from the experimental observations varies from nearly 0-20 percent, 0-30 percent, and 0-10 percent for hmF2, NmF2, and M3000F2, in that order. Our results are essentially

  10. The "X-Factor" index: a new parameter for the assessment of adolescent idiopathic scoliosis correction.

    Science.gov (United States)

    Sun, Yu Qing; Samartzis, Dino; Cheung, Kenneth M C; Wong, Yat Wa; Luk, Keith D K

    2011-01-01

    The correction rate (CR) and fulcrum bending correction index (FBCI) based on the fulcrum bending radiograph (FBR) were parameters introduced to measure the curve correcting ability; however, such parameters do not account for contributions by various, potential extraneous "X-Factors" (e.g. surgical technique, type and power of the instrumentation, anesthetic technique, etc.) involved in curve correction. As such, the purpose of the following study was to propose the concept of the "X-Factor Index" (XFI) as a new parameter for the assessment of the correcting ability of adolescent idiopathic scoliosis (AIS). A historical cohort radiographic analysis of the FBR in the setting of hook systems in AIS patients (Luk et al. in Spine 23:2303-2307, 1998) was performed to illustrate the concept of XFI. Thirty-five patients with AIS of the thoracic spine undergoing surgical correction were involved in the analysis. Plain posteroanterior (PA) plain radiographs were utilized and Cobb angles were obtained for each patient. Pre- and postoperative PA angles on standing radiograph and preoperative fulcrum bending angles were obtained for each patient. The fulcrum flexibility, curve CR, and FBCI were determined for all patients. The difference between the preoperative fulcrum bending angle and postoperative PA angle was defined as Angle(XF), which accounted for the correction contributed by "X-Factors". The XFI, designed to measure the curve correcting ability, was calculated by dividing Angle(XF) by the fulcrum flexibility. The XFI was compared with the curve CR and FBCI by re-evaluating the original data in the original paper (Luk et al. in Spine 23:2303-2307, 1998). The mean standing PA and FBR alignments of the main thoracic curve were 58.3° and 24.5°, respectively. The mean fulcrum flexibility was 58.8%. The mean postoperative standing PA alignment was 24.7°. The mean curve CR was 58.0% and the mean FBCI was 101.1%. The mean XFI was noted as 1.03%. The CR was significantly

  11. Assessment of Macular Parameter Changes in Patients with Keratoconus Using Optical Coherence Tomography

    Directory of Open Access Journals (Sweden)

    Srujana Sahebjada

    2015-01-01

    Full Text Available Keratoconus is typically diagnosed through changes at the anterior ocular surface. However, we wished to assess if macular parameter changes might also occur in these patients. We assessed posterior changes through the use of optical coherence tomography and compared to a nonkeratoconus patient group. All subjects underwent clinical examination including macular thickness measurements. The generalized estimation equation model was used to estimate the means and compare the differences in various measurements between keratoconus and nonkeratoconus patients. A total of 129 keratoconus eyes of 67 cases and 174 nonkeratoconus eyes of 87 controls were analysed. Keratoconus individuals presented with a significantly greater mean retinal thickness in the central fovea, inner, and outer macula compared to the nonkeratoconus group (p<0.05. In addition, individuals presenting with the early signs of keratoconus had significantly greater inner and outer macular volume compared to the nonkeratoconus group (p<0.05. This study indicates the retina appears to thicken at the fovea and macula and had increased macular volume in keratoconus individuals compared to nonkeratoconus individuals. Thus we posit that structural retinal changes exist in keratoconus eyes that are additional to those typically seen in the anterior segment.

  12. Evaluating medically at-risk drivers: a survey of assessment practices in Canada.

    Science.gov (United States)

    Vrkljan, Brenda H; Myers, Anita M; Crizzle, Alexander M; Blanchard, Robin A; Marshall, Shawn C

    2013-12-01

    Assessing medical fitness to drive (FTD) can include both off- and on-road testing, although consistency of practice is unclear. To examine actual practices being used to assess FTD at driver assessment centres (DACs) across Canada. Surveys e-mailed to 90 DACs were returned by 47 assessors. The majority of respondents (89%) were occupational therapists. Assessors reported doing an average of eight FTD assessments per month (range = I to 40) at an average cost of $366 (SD = $225; range = $40 to $985). Referrals came from physicians (96%), other health professionals (70%), and licensing authorities (66%). Clients with stroke, dementia, traumatic brain injury, mild cognitive impairment, and multiple sclerosis composed 62% of estimated caseloads. Assessments took 3 hr on average (range = 1.24 to 4.5 hr); 64% reported they always took clients on road regardless of clinic results. Evidence-based guidelines for training and assessment are clearly needed given the inconsistency in practice.

  13. Using climate derivatives for assessment of meteorological parameter relationships in RCM and observations

    Science.gov (United States)

    Timuhins, Andrejs; Bethers, Uldis; Bethers, Peteris; Klints, Ilze; Sennikovs, Juris; Frishfelds, Vilnis

    2017-04-01

    In a changing climate it is essential to estimate its impacts on different economic fields. In our study we tried to create a framework for climate change assessment and climate change impact estimation for the territory of Latvia and to create results which are also understandable for non-scientists (stakeholder, media and public). This approach allowed us to more carefully assess the presentation and interpretation of results and their validation, for public viewing. For the presentation of our work a website was created (www.modlab.lv/klimats) containing two types of documents in a unified framework, meteorological parameter analysis of different easily interpretable derivative values. Both of these include analysis of the current situation as well as illustrate the projection for future time periods. Derivate values are calculated using two data sources: the bias corrected regional climate data and meteorological observation data. Derivative documents contain description of derived value, some interesting facts and conclusions. Additionally, all results may be viewed in temporal and spatial graphs and maps, for different time periods as well as different seasons. Bias correction (Sennikovs and Bethers, 2009) for the control period 1961-1990 is applied to RCM data series. Meteorological observation data of the Latvian Environment, Geology, and Meteorology Agency and ENSEMBLES project daily data of 13 RCM runs for the period 1960-2100 are used. All the documents are prepared in python notebooks, which allow for flexible changes. At the moment following derivative values have been published: forest fire risk index, wind energy, phenology (Degree days), road condition (friction, ice conditions), daily minimal meteorological visibility, headache occurrence rate, firs snow date and meteorological parameter analysis: temperature, precipitation, wind speed, relative humidity, and cloudiness. While creating these products RCM ability to represent the actual climate was

  14. Tsunami hazard assessment in Nice, France, and influence of uncertainties in source parameters

    Science.gov (United States)

    Fontaine, Agathe; Loevenbruck, Anne; Heinrich, Philippe; Gailler, Audrey; Hébert, Hélène

    2015-04-01

    Although the tsunami hazard on the French Mediterranean coast is still poorly known, potential tsunamigenic sources exist in the Western Mediterranean basin. Even though the water heights are moderate, generated waves and currents could reach busy beaches, harbors and other coastal structures. The European project ASTARTE aims at reaching a higher level of tsunami resilience in the North-East Atlantic and Mediterranean region (called NEAM by IOC-UNESCO). In this context, ASTARTE proposes to improve the knowledge of tsunami generation, develop methods for hazard, vulnerability and risk assessment, better understand local coastal effects and enhance tools for early warning system. 9 test sites, including Nice for the French coasts, have been selected all over the NEAM area. Nice is the largest city of the French Riviera and welcomes a very large number of tourists every year, notably for seaside activities. Moreover its waterfront hosts the second French airport and many other facilities. Our work focuses on the tsunami hazard assessment related to seismic sources. This study, based on a worst-case scenarios approach, is carried out using multigrid numerical simulations. Seismic sources are computed through the Okada elastic dislocation model and constrained with the seismological parameters of the rupture. The coseismic deformation provides the initial condition to solve the shallow water equations on which the tsunami propagation simulation is based. Nested computational grids allow taking into account the shoaling effect for the Nice area as well as the potential inundation. The French Litto3D project, led by SHOM (Service Hydrographique et Oceanographique de la Marine) and IGN (Institut National de l'Information Geographique et Forestiere) provides high resolution bathymetric and topographic data (1 to 5 meters of resolution) along the coastline. Our modeling thus gives detailed estimation of the wave impacts on Nice with a particular focus on three critical

  15. Jungle Giants: Assessing Sustainable Harvesting in a Difficult-to-Survey Species (Python reticulatus).

    Science.gov (United States)

    Natusch, Daniel J D; Lyons, Jessica A; Mumpuni; Riyanto, Awal; Shine, Richard

    2016-01-01

    Sustainability of wildlife harvests is critical but difficult to assess. Evaluations of sustainability typically combine modelling with the measurement of underlying abundances. For many taxa harvested in developing countries, however, abundances are near-impossible to survey and a lack of detailed ecological information impedes the reliability of models. In such cases, repeated surveys of the attributes of harvested individuals may provide more robust information on sustainability. If the numbers, sizes and other demographic attributes of animals taken for the commercial trade do not change over biologically significant time intervals (decades), there is a prima facie case that the harvest is indeed sustainable. Here, we report the results of examinations of > 4,200 reticulated pythons (Python reticulatus) taken for the commercial leather industry in northern and southern Sumatra, Indonesia. The numbers, mean body sizes, clutch sizes, sizes at maturity and proportion of giant specimens have not decreased between our first surveys (1995) and repeat surveys (2015). Thus, despite assumptions to the contrary, the harvest appears to be sustainable. We use our data to inform the design of future monitoring programs for this species. Our study underpins the need for robust science to inform wildlife trade policy and decision-making, and urges wildlife managers to assess sustainability of difficult-to-survey terrestrial wildlife by drawing inferences directly from the harvest itself.

  16. Assessing the quality of risk factor survey data: lessons from the WHO MONICA Project.

    Science.gov (United States)

    Tolonen, Hanna; Dobson, Annette; Kulathinal, Sangita

    2006-02-01

    Survey data quality is a combination of the representativeness of the sample, the accuracy and precision of measurements, data processing and management with several subcomponents in each. The purpose of this paper is to show how, in the final risk factor surveys of the WHO MONICA Project, information on data quality were obtained, quantified, and used in the analysis. In the WHO MONICA (Multinational MONItoring of trends and determinants in CArdiovascular disease) Project, the information about the data quality components was documented in retrospective quality assessment reports. On the basis of the documented information and the survey data, the quality of each data component was assessed and summarized using quality scores. The quality scores were used in sensitivity testing of the results both by excluding populations with low quality scores and by weighting the data by its quality scores. Detailed documentation of all survey procedures with standardized protocols, training, and quality control are steps towards optimizing data quality. Quantifying data quality is a further step. Methods used in the WHO MONICA Project could be adopted to improve quality in other health surveys.

  17. An Assessment of FY2016 Locally Developed Questions from the DEOMI Organizational Climate Survey: Recommendations and Potential Implications

    Science.gov (United States)

    2017-07-11

    1 An Assessment of FY2016 Locally Developed Questions from the DEOMI Organizational Climate Survey: Recommendations and Potential Implications...Equal Opportunity Management Institute (DEOMI) Organizational Climate Survey (DEOCS). The top 15 questions were ranked across a total of 180,797...Department of Equal Opportunity Management Institute Organizational Climate Survey (DEOCS) for fiscal year 2016 by commanders across the Department

  18. [High resolution peripheral quantitative computed tomography for the assessment of morphological and mechanical bone parameters].

    Science.gov (United States)

    Fuller, Henrique; Fuller, Ricardo; Pereira, Rosa Maria R

    2015-01-01

    High resolution peripheral quantitative computed tomography (HR-pQCT) is a new technology commercially available for less than 10 years that allows performing in vivo assessment of bone parameters. HR-pQCT assesses the trabecular thickness, trabecular separation, trabecular number and connectivity density and, in addition, cortical bone density and thickness and total bone volume and density in high-definition mode, which additionally allows obtaining digital constructs of bone microarchitecture. The application of mathematics to captured data, a method called finite element analysis (FEA), allows the estimation of the physical properties of the tissue, simulating supported loads in a non-invasive way. Thus, HR-pQCT simultaneously acquires data previously provided separately by dual energy x-ray absorptiometry (DXA), magnetic resonance imaging and histomorphometry, aggregating biomechanical estimates previously only possible in extracted tissues. This method has a satisfactory reproducibility, with coefficients of variation rarely exceeding 3%. Regarding accuracy, the method shows a fair to good agreement (r(2) = 0.37-0.97). The main clinical application of this method is in the quantification and monitoring of metabolic bone disorders, more fully evaluating bone strength and fracture risk. In rheumatoid arthritis patients, this allows gauging the number and size of erosions and cysts, in addition to joint space. In osteoarthritis, it is possible to characterize the bone marrow edema-like areas that show a correlation with cartilage breakdown. Given its high cost, HR-pQCT is still a research tool, but the high resolution and efficiency of this method reveal advantages over the methods currently used for bone assessment, with a potential to become an important tool in clinical practice. Copyright © 2014 Elsevier Editora Ltda. All rights reserved.

  19. U.S. Geological Survey assessment of reserve growth outside of the United States

    Science.gov (United States)

    Klett, Timothy R.; Cook, Troy A.; Charpentier, Ronald R.; Tennyson, Marilyn E.; Le, Phuong A.

    2015-12-21

    The U.S. Geological Survey estimated volumes of potential additions to oil and gas reserves for the United States by reserve growth in discovered accumulations. These volumes were derived by using a new methodology developed by the U.S. Geological Survey and reviewed by the American Association of Petroleum Geologists Committee on Resource Evaluation. This methodology was used to assess reserve growth in individual accumulations (reservoirs, groups of reservoirs, or fields). Selected, large, well-studied, conventional accumulations in the United States that are estimated to contribute most to reserve growth were assessed using analysis of geology and engineering practices. Potential additions to oil and gas reserves for large, discovered, conventional accumulations outside of the United States due to reserve growth were assessed using the U.S. accumulations as analogs. Potential oil and gas volumes were assumed to be added to proven plus probable reserves.

  20. SURVEY

    DEFF Research Database (Denmark)

    SURVEY er en udbredt metode og benyttes inden for bl.a. samfundsvidenskab, humaniora, psykologi og sundhedsforskning. Også uden for forskningsverdenen er der mange organisationer som f.eks. konsulentfirmaer og offentlige institutioner samt marketingsafdelinger i private virksomheder, der arbejder...... med surveys. Denne bog gennemgår alle surveyarbejdets faser og giver en praktisk indføring i: • design af undersøgelsen og udvælgelse af stikprøver, • formulering af spørgeskemaer samt indsamling og kodning af data, • metoder til at analysere resultaterne...

  1. Development of a survey to assess adolescent perceptions of teen parenting.

    Science.gov (United States)

    Herrman, Judith W; Nandakumar, Ratna

    2012-01-01

    Initiatives designed to prevent teen pregnancy are often based on adult perceptions of the negative aspects of a teen birth. Qualitative research has revealed that teens may perceive positive rewards associated with teen parenting. These perceptions have not yet been examined through survey research. The theory of reasoned action proposes that individuals assess the costs and rewards prior to engaging in a behavior and provides a framework for the development of a survey instrument designed to measure adolescent thoughts about the costs and rewards of the teen parenting experience. This manuscript describes the development and testing of a quantitative survey instrument designed to measure adolescents' perceptions. Pretesting, piloting, exploratory factor analysis, and a variety of reliability and validity measures were used to determine the value of the measure. The thoughts on teen parenting survey (TTPS) demonstrates an alpha level of .90. The TTPS yields a cumulative score of teen perceptions about the impact of a teen birth during the adolescent years that may be used to assess youth beliefs, correlated with demographic data, used to identify teens at risk for pregnancy/parenting, or provide a pretest/posttest to assess the effectiveness of interventions designed to foster realistic attitudes toward teen parenting.

  2. THE APPLICATION OF STATISTICAL PARAMETERS OF PHASE RESOLVED PD DISTRIBUTION TO AGING EXTENT ASSESSMENT OF LARGE GENERATOR INSULATION

    Institute of Scientific and Technical Information of China (English)

    谢恒堃; 乐波; 孙翔; 宋建成

    2003-01-01

    Objective To investigate the characteristic parameters employed to describe the aging extent of stator insulation of large generator and study the aging laws. Methods Multi-stress aging tests of model generator stator bar specimens were performed and PD measurements were conducted using digital PD detector with frequency range from 40*!kHz to 400*!kHz at different aging stage. Results From the test results of model specimens it was found that the skewness of phase resolved PD distribution might be taken as the characterization parameters for aging extent assessment of generator insulation. Furthermore, the measurement results of actual generator stator bars showed that the method based on statistical parameters of PD distributions are prospective for aging extent assessment and residual lifetime estimation of large generator insulation. Conclusion Statistical parameters of phase resolved PD distribution was proposed for aging extent assessment of large generator insulation.

  3. Surveying clinician perceptions of risk assessment and management practices in mental health service provision.

    Science.gov (United States)

    Wand, Timothy; Isobel, Sophie; Derrick, Kate

    2015-04-01

    This study aimed to survey multidisciplinary mental health staff on their perceptions of risk assessment and management practices in a local health district in Sydney. The research team developed the risk assessment and management survey (RAMS) which was distributed to staff across the district from November 2013 to January 2014. A total of 340 RAMS were distributed and 164 were returned (48% response rate). There was considerable agreement that risk assessment and management is essential to maintaining safety and delivering good mental health care, and respondents reported high levels of confidence in their judgement when carrying out such practices. Respondents identified organisational pressure in relation to risk assessment and management but also felt supported. However, 65% of respondents considered that there 'is good evidence that risk assessment and management practices are effective in reducing risk in mental health care', when this is not the case. The confidence that clinicians placed in risk assessment and management practices (despite an absence of evidence) is disconcerting. Given the dominance of risk assessment and management, health services mandating such practices have a duty to inform employees of the current evidence base for this approach in reducing risk. © The Royal Australian and New Zealand College of Psychiatrists 2015.

  4. Geographic Information System mapping as a tool to assess nonresponse bias in survey research.

    Science.gov (United States)

    Hansen, Richard A; Henley, Amanda Clarke; Brouwer, Emily S; Oraefo, Adaora N; Roth, Mary T

    2007-09-01

    Surveys are a useful tool for assessing professional practice patterns, although declining response rates have caused concern over external validity. This is particularly relevant to Web-based surveys, where response rates traditionally have been lower than with paper mail surveys. In a 2005 survey of North Carolina community pharmacy managers using a Web-based data collection instrument, we achieved an overall response rate of 23%. To explore nonresponse bias using accepted methods and to test whether Geographic Information System mapping is a useful tool for assessing response bias. Cross-sectional survey of 1593 community pharmacy managers in North Carolina using a Web-based tool. Nonresponse bias was assessed quantitatively by comparing early responders with late responders (ie, wave analysis) and by comparing respondents with nonrespondents with regard to known pharmacy, pharmacist, and population characteristics. Significant variables from these analyses were then mapped using ArcGIS 9.1. Pharmacy type was identified as a predictor of response, with independent pharmacies less likely to respond than chain pharmacies (odds ratio 0.75; 95% confidence interval 0.59-0.95). This conclusion was consistent in the wave analysis and the analysis of known population characteristics. Other county-level variables such as the number of physicians per capita, income, and the percentage of residents eligible for Medicaid showed trends but were not statistically significant (Ppharmacy type but trends were more difficult to detect for statistically insignificant trends. The best way to avoid nonresponse bias is to improve response rates. When this is not possible, Geographic Information System mapping has some utility for assessing nonresponse bias, and for aggregating known population characteristics based on location. It is most useful in conjunction with other accepted techniques such as wave analysis and analysis of known population characteristics.

  5. Input-form data for the U.S. Geological Survey assessment of the Mississippian Barnett Shale of the Bend Arch–Fort Worth Basin Province, 2015

    Science.gov (United States)

    Marra, Kristen R.; Charpentier, Ronald R.; Schenk, Christopher J.; Lewan, Michael D.; Leathers-Miller, Heidi M.; Klett, Timothy R.; Gaswirth, Stephanie B.; Le, Phuong A.; Mercier, Tracey J.; Pitman, Janet K.; Tennyson, Marilyn E.

    2016-07-15

    In 2015, the U.S. Geological Survey (USGS) released an updated assessment of undiscovered, technically recoverable shale gas and shale oil resources of the Mississippian Barnett Shale in north-central Texas (Marra and others, 2015). The Barnett Shale was assessed using the standard continuous (unconventional) methodology established by the USGS for two assessment units (AUs): (1) Barnett Continuous Gas AU, and (2) Barnett Mixed Continuous Gas and Oil AU. A third assessment unit, the Western Barnett Continuous Oil AU, was also defined but was not quantitatively assessed because of limited data within the extent of the AU. The purpose of this report is to provide supplemental documentation of the quantitative input parameters applied in the Barnett Shale assessment.

  6. Quality assessment of truffle-inoculated seedlings in Italy: proposing revised parameters for certification

    Directory of Open Access Journals (Sweden)

    Domizia Donnini

    2014-08-01

    Full Text Available Aim of study: the main aims of this study were to evaluate the quality of truffle-inoculated seedlings produced by commercial nurseries in Italy and to identify their minimum requisites in terms of plant age, health, homogeneity, and cut-off percentage of inoculated Tuber and non-Tuber ectomycorrhizae, based on the analysis of an extensive sample of seedlings subjected to quality control and certification.Area of study: truffle-inoculated seedlings produced by Italian commercial nurseries.Material and Methods: analysis of truffle-inoculated seedlings for health and quality standards; recording of presence of inoculated Tuber spp. and other concurrent fungi according to the official Italian method for certification; selective amplification of ectomycorrhizal DNA by PCR species-specific primers.Main results: We showed that mycorrhization levels in truffle-inoculated seedlings increased with time after truffle-spore inoculation. The highest mean percentage of the inoculated Tuber spp., but also the highest presence of contaminants, were recorded after three years. The mycorrhization level of Tuber melanosporum and T. aestivum was higher in Corylus and Ostrya seedlings than in Q. ilex and Q. pubescens, but the latter two host species showed the lowest presence of other ectomycorrhizal fungi. Mycorrhization level distribution in truffle-inoculated seedlings of suitable batches differed very little from the distribution in only all suitable seedlings. Truffle seedlings with other Tuber spp. were very few and even absent after three years. The general quality of Italian truffle-inoculated seedlings is high but can be improved even further by revising the parameters used for their certification.Research highlights: Mycorrhization assessment in truffle-inoculated seedlings produced by commercial nurseries and a revision of the parameters of quality standards following several years of certification in Italy.Keywords: Truffle cultivation; truffle

  7. Assessment of acute moderate hyperglycemia on traditional and thromboelastometry coagulation parameters in healthy adult horses.

    Science.gov (United States)

    McGovern, Kate F; Lascola, Kara M; Smith, Stephanie A; Clark-Price, Stuart C; McMichael, Maureen; Wilkins, Pamela A

    2012-10-01

    To determine whether experimentally induced acute moderate hyperglycemia is associated with coagulation activation in healthy adult horses. Prospective experimental study. University veterinary teaching hospital. Six healthy adult horses. Hyperglycemia (10.0-13.3 mmol/L [180-240 mg/dL]) was induced and maintained for 6 hours using a hyperglycemic clamp technique. Blood glucose concentrations were assessed using a point of care (POC) glucometer at 10- and 20-minute intervals throughout the hyperglycemic clamp procedure. Platelet count, fibrinogen concentration, prothrombin time (PT), activated partial thromboplastin time (aPTT), thrombin antithrombin complex level (TAT), and thromboelastometry (TEM) were determined before and after jugular catheter placement, prior to glucose administration, and at 3 and 6 hours of sustained hyperglycemia. Data were analyzed by repeated measures analysis of variance with significance defined as P 10.0 mmol/L (>180 mg/dL) throughout the duration of the hyperglycemic clamp with a mean concentration of 11.9 ± 0.3 mmol/L [216 ± 6 mg/dL] as measured by the POC glucometer. No significant difference was found for any evaluated parameter associated with sustained hyperglycemia. Intravenous catheter placement resulted in a significant increase in mean TAT (0.8 ± 0.3 μg/L pre-catheter, 2.3 ± 0.8 μg/L post-catheter; P = 0.008). Acute, moderate hyperglycemia in healthy adult horses does not have a detectable effect on coagulation based on evaluated parameters. Jugular catheter placement results in a transient increase in thrombin generation as determined by increased TAT concentrations. © Veterinary Emergency and Critical Care Society 2012.

  8. Biohumoral and endocrine parameters in assessment of surgical trauma in open and laparoscopic cholecystectomy

    Directory of Open Access Journals (Sweden)

    Radunović Miodrag

    2013-01-01

    Full Text Available Background/Aim. Every surgical procedure causes metabolic, endocrine, and hemodynamic stress in the organism. The aim of this work was to assess the extent of trauma following each of the two types of cholecystectomy (traditional/open and laparoscopic by measuring palette of biochemical parameters. Methods. This prospective, single- center study included 120 patients subjected to elective cholecystectomy during the period of one year. Sixty patients were treated laparoscopically and 60 traditionally. Biohumoral and endocrine parameters were determined from 24-hour urine and blood. We measured adrenaline, noradrenaline, metabolites of corticosteroid hormones (17-hydroxyl and 17-keto steroids, C-reactive protein (CRP, albumin, glycemia, creatine-phosphokinase (CPK, lactate-dehydrogenase (LDH, red blood cells sedimentation and serum concentration of potassium. Results. We observed significantly lower levels of adrenaline (p < 0.01, noradrenaline (p < 0.05, dopamine (p < 0.01, 17-hydroxyl (p < 0.01 and 17-keto steroids (p < 0.01, glycemia (p < 0.01, CPK (p < 0.01, LDH (p < 0.01 and red blood cells sedimentation (p < 0.01 following laparoscopic cholecystectomy compared to traditional one. Significant increase in CRP levels was recorded postoperatively in both groups (p < 0.05, as well as significant decrease in serum albumin values (p < 0.05. Duration of the hospitalization following laparoscopic cholecystectomy was significantly shorter (p < 0.01. Conclusion. The intensity of organism response is proportional to the intensity of surgical trauma. Metabolic, tissue and neuroendocrine response of organism to trauma has lower intensity after laparoscopic cholecystectomy.

  9. Left atrial active contractile function parameters assessed by cardiac MR are sensitive to myocardial iron.

    Science.gov (United States)

    Wehbe, Mahmoud S; Yamamura, Jin; Fischer, Roland; Grosse, Regine; Berliner, Christoph; Graessner, Joachim; Lund, Gunner; Adam, Gerhard; Schoennagel, Bjoern P

    2017-02-01

    To determine the impact of myocardial iron overload on left atrial (LA) volume and function using MR in patients with systemic iron overload. Thirty-eight patients with systemic iron overload disease and 10 controls underwent 1.5 Tesla MR performing steady state free precession short-axis cine-series of the LA. Three-dimensional-volumetry was assessed to calculate LA volumes and function. Parameters were indexed (i) to body surface area. The myocardial transverse relaxation rate R2* was determined in the ventricular septum using a multi-echo GRE sequence (breathhold; electrocardiography triggered; 12 echoes; echo time = 1.3-25.7 ms). Significantly decreased active atrial emptying fraction (AAEF) (23% [95%-range, 7-34] versus 36% [95%-range, 14-49], P = 0.009), active atrial emptying volume (AAEVi) (5.5 mL/m(2) [95%-range, 2-11] versus 11.9 mL/m(2) [95%-range, 3-23], P = 0.008), and active peak emptying rate (APERi) (46 mL/s/m(2) [95%-range, 29-69] versus 75 mL/s/m(2) [95%-range, 45-178], P  40 s(-1) ) compared with patients with normal myocardial iron levels (R2* sensitivities and specificities of 82% (AAEF), 79% (APERi), 73% (AAEVi), and 57% (LAEF). MR parameters of active LA contractile function were associated with myocardial iron overload. This cross-sectional study suggests impaired active LA contractile function to be sensitive to myocardial iron toxicity. 3 J. Magn. Reson. Imaging 2017;45:535-541. © 2016 International Society for Magnetic Resonance in Medicine.

  10. Assessment of clinical and laboratory parameters that reflect inflammatory response and organ function in sepsis

    Directory of Open Access Journals (Sweden)

    Herdiman T. Pohan

    2005-03-01

    Full Text Available Sepsis is a spectrum of clinical conditions caused by the host immune response to infection or other inflammatory stimuli characterized by systemic inflammation. Clinical response to sepsis could be varies according to compensate or decompensate state, inflammatory process and host condition. Aims of this study is to assess the role of some parameters (clinical and biochemical, hematology, arterial blood gas analysis and coagulation in supporting the diagnosis of sepsis. A cross-sectional study was performed in the Internal Medicine Inpatient Unit of Dr. Cipto Mangunkusumo National General Hospital, Jakarta, from February to July 2002. Forty-two patients who fulfilled the criteria of sepsis, severe sepsis, and septic shock were enrolled in this study. Clinical details and blood specimens for hematological, biochemical, arterial blood gas analysis and coagulation were collected. There were 42 subjects who participated in the study, aged from 19 to 78 years old. Eleven subjects fulfilled the criteria for early sepsis, 20 severe sepsis and 11 septic shock. Clinical examination showed that the Glasgow coma scale (GCS was significantly reduced in severe sepsis and septic shock. Heart rate, respiration rate and body temperature were increased in all groups. Hemoglobin levels mostly below 10 g/dl and hematocrite levels below 30 %. The leucocyte counts were increased in more than 80%, mostly above 15.000/mm3. The platelet count were low (below 50.000/mm3 especially in septic shock.  The serum creatinine were significantly increased (>2 mg/dl in severe sepsis and septic shock. Albumin was decreased,  lactate dehydrogenase/LDH and procalcitonin  were increased. The arterial blood gas analysis showed that: pH and HCO3 were decreased especially in  septic shock; the PO2 was lower in severe sepsis and septic shock; and PCO2 was below 32 mmHg in all groups. Coagulation examinations showed that fibrinogen was significantly decreased in septic shock; PT and

  11. Water quality modelling for ephemeral rivers: Model development and parameter assessment

    Science.gov (United States)

    Mannina, Giorgio; Viviani, Gaspare

    2010-11-01

    SummaryRiver water quality models can be valuable tools for the assessment and management of receiving water body quality. However, such water quality models require accurate model calibration in order to specify model parameters. Reliable model calibration requires an extensive array of water quality data that are generally rare and resource-intensive, both economically and in terms of human resources, to collect. In the case of small rivers, such data are scarce due to the fact that these rivers are generally considered too insignificant, from a practical and economic viewpoint, to justify the investment of such considerable time and resources. As a consequence, the literature contains very few studies on the water quality modelling for small rivers, and such studies as have been published are fairly limited in scope. In this paper, a simplified river water quality model is presented. The model is an extension of the Streeter-Phelps model and takes into account the physico-chemical and biological processes most relevant to modelling the quality of receiving water bodies (i.e., degradation of dissolved carbonaceous substances, ammonium oxidation, algal uptake and denitrification, dissolved oxygen balance, including depletion by degradation processes and supply by physical reaeration and photosynthetic production). The model has been applied to an Italian case study, the Oreto river (IT), which has been the object of an Italian research project aimed at assessing the river's water quality. For this reason, several monitoring campaigns have been previously carried out in order to collect water quantity and quality data on this river system. In particular, twelve river cross sections were monitored, and both flow and water quality data were collected for each cross section. The results of the calibrated model show satisfactory agreement with the measured data and results reveal important differences between the parameters used to model small rivers as compared to

  12. Psychometric properties of the Dutch version of the hospital-level consumer assessment of health plans survey (R) instrument

    NARCIS (Netherlands)

    O.A. Arah; A.H.A. ten Asbroek; D.M.J. Delnoij; J.S. de Koning; P.J.A. Stam; A.H. Poll; B. Vriens; P.F. Schmidt; N.S. Klazinga

    2006-01-01

    Objectives. To assess the reliability and validity of a translated version of the American Hospital-level Consumer Assessment of Health Plans Survey (R) (H-CAHPS) instrument for use in Dutch health care. Data Sources/Study Setting. Primary survey data from adults aged 18 years or more who were recen

  13. Environmental assessment survey of the vegetation surrounding a Lower Wilcox Group coal gas well site

    Science.gov (United States)

    McCoy, John W.

    2004-01-01

    This environmental assessment was conducted to examine the impacts on vegetation of the drilling and operation of a coal gas well located along Hwy 134 about 5 miles (8 km) east of Fairbanks, La. The drill site is 85 meters north of Hwy 134 and operations at the well were performed by EnerVest Operating LLC. The site (privately owned) was formerly a mixed hardwood/pine forest that was clear-cut in 1998 and planted with loblolly pine. Once completed, the well site, with its associated pipeline covered about 1,560 m2 (11.5 percent of the survey area). This survey was conducted in coordination with Peter D. Warwick, Research Geologist, U.S. Geological Survey, and Jim York, contract geologist for EnerVest Operating, LLC.

  14. Use of North American Breeding Bird Survey data in avian conservation assessments

    Science.gov (United States)

    Rosenberg, Kenneth V.; Blancher, Peter J.; Stanton, Jessica C.; Panjabi, Arvind O.

    2017-01-01

    Conservation resources are limited, and prioritizing species based on their relative vulnerability and risk of extinction is a fundamental component of conservation planning. In North America, the conservation consortium Partners in Flight (PIF) has developed and implemented a data-driven species assessment process, at global and regional scales, based on quantitative vulnerability criteria. This species assessment process has formed the biological basis for PIF's continental and regional planning and has informed the ranking and legal listing of bird species for conservation protection by state, provincial, and national agencies in Canada, the U.S., and Mexico. Because of its long time series, extensive geographic and species coverage, standardized survey methods, and prompt availability of results, the North American Breeding Bird Survey (BBS) has been an invaluable source of data, allowing PIF to assign objective vulnerability scores calibrated across more than 460 landbird species. BBS data have been most valuable for assessing long-term population trends (PT score). PIF has also developed methods for estimating population size by extrapolating from BBS abundance indices, allowing the assignment of categorical population size (PS) scores for landbird species. At regional scales, BBS relative abundance indices have allowed PIF to assess the area importance (i.e. stewardship responsibility) of each Bird Conservation Region (BCR) for each species, using measures of both relative density and percent of total population in each BCR. Besides direct applicability to assessment scores, PIF has recently used BBS trend data to create new metrics of conservation urgency (e.g., ‘half-life'), as well as for setting population objectives for tracking progress toward meeting conservation goals. Future directions include integrating BBS data with other sources (e.g., eBird) to assess additional species and nonbreeding season measures, working closely with BBS coordinators to

  15. National survey of clinical communication assessment in medical education in the United Kingdom (UK)

    Science.gov (United States)

    2014-01-01

    Background All medical schools in the UK are required to be able to provide evidence of competence in clinical communication in their graduates. This is usually provided by summative assessment of clinical communication, but there is considerable variation in how this is carried out. This study aimed to gain insight into the current assessment of clinical communication in UK medical schools. Methods The survey was sent via e-mail to communication leads who then were asked to consult with all staff within their medical school involved in the assessment of communication. Results Results were obtained from 27 out of 33 schools (response rate 82%) and a total of 34 courses. The average number of assessments per year was 2.4 (minimum 0, maximum 10). The Objective Structured Clinical Exam (OSCE) was the most commonly used method of assessment (53%). Other assessments included MCQ and workplace based assessments. Only nine courses used a single method of assessment. Issues raised included, logistics and costs of assessing mainly by OSCE, the robustness and reliability of such exams and integration with other clinical skills. Conclusions It is encouraging that a variety of assessment methods are being used within UK medical schools and that these methods target different components of clinical communication skills acquisition. PMID:24417939

  16. Combined analysis of roadside and off-road breeding bird survey data to assess population change in Alaska

    Science.gov (United States)

    Handel, Colleen M.; Sauer, John

    2017-01-01

    Management interest in North American birds has increasingly focused on species that breed in Alaska, USA, and Canada, where habitats are changing rapidly in response to climatic and anthropogenic factors. We used a series of hierarchical models to estimate rates of population change in 2 forested Bird Conservation Regions (BCRs) in Alaska based on data from the roadside North American Breeding Bird Survey (BBS) and the Alaska Landbird Monitoring Survey, which samples off-road areas on public resource lands. We estimated long-term (1993–2015) population trends for 84 bird species from the BBS and short-term (2003–2015) trends for 31 species from both surveys. Among the 84 species with long-term estimates, 11 had positive trends and 17 had negative trends in 1 or both BCRs; negative trends were primarily found among aerial insectivores and wetland-associated species, confirming range-wide negative continental trends for many of these birds. Three species with negative trends in the contiguous United States and southern Canada had positive trends in Alaska, suggesting different population dynamics at the northern edges of their ranges. Regional population trends within Alaska differed for several species, particularly those represented by different subspecies in the 2 BCRs, which are separated by rugged, glaciated mountain ranges. Analysis of the roadside and off-road data in a joint hierarchical model with shared parameters resulted in improved precision of trend estimates and suggested a roadside-related difference in underlying population trends for several species, particularly within the Northwestern Interior Forest BCR. The combined analysis highlights the importance of considering population structure, physiographic barriers, and spatial heterogeneity in habitat change when assessing patterns of population change across a landscape as broad as Alaska. Combined analysis of roadside and off-road survey data in a hierarchical framework may be particularly

  17. Comparison between 2D ultrasonography and magnetic resonance imaging for assessing brain and spine parameters in fetuses with spina bifida.

    Science.gov (United States)

    Araujo Júnior, Edward; Nakano, Mayra Lemos; Nardozza, Luciano Marcondes Machado; Haratz, Karina Krajden; Oliveira, Patrícia Soares; Martins, Wellington P; Ajzen, Sérgio Aron; Moron, Antonio Fernandes

    2013-05-01

    To compare two-dimensional ultrasonography (2DUS) and magnetic resonance imaging (MRI) for assessing brain and spine parameters in fetuses with spina bifida. A cross-sectional study was conducted on 15 fetuses with spina bifida (one with encephalocele, four with rachischisis and 10 with myelomeningocele). The size of the atrium of the lateral ventricle, percentage shortening of the cerebellum, degree of compromising of the first vertebra and total number of vertebras affected by herniation were assessed. The MRI examination was performed not more than 7 days after the 2DUS. To compare and correlate the parameters from the two techniques, the paired Student's t test and intraclass correlation coefficient (ICC) were used. To assess the correlations of atrium measurements from 2DUS and MRI with other parameters, Pearson's correlation coefficient (r) was used. No significant difference was observed in any of the means of the parameters assessed using the two techniques (p > 0.05). Both 2DUS and MRI seemed to present satisfactory reliability in measurements on the size of the atrium of the lateral ventricle and the first vertebra affected (ICC = 0.88 and 0.75, respectively). Measurements on the atrium of the lateral ventricle from 2DUS correlated better with the other parameters than did measurements from MRI. In fetuses with spina bifida, 2DUS and MRI present similar results, but measurements on the atrium of the lateral ventricle from 2DUS correlated better with the other parameters.

  18. Automated Soil Physical Parameter Assessment Using Smartphone and Digital Camera Imagery

    Directory of Open Access Journals (Sweden)

    Matt Aitkenhead

    2016-12-01

    Full Text Available Here we present work on using different types of soil profile imagery (topsoil profiles captured with a smartphone camera and full-profile images captured with a conventional digital camera to estimate the structure, texture and drainage of the soil. The method is adapted from earlier work on developing smartphone apps for estimating topsoil organic matter content in Scotland and uses an existing visual soil structure assessment approach. Colour and image texture information was extracted from the imagery. This information was linked, using geolocation information derived from the smartphone GPS system or from field notes, with existing collections of topography, land cover, soil and climate data for Scotland. A neural network model was developed that was capable of estimating soil structure (on a five-point scale, soil texture (sand, silt, clay, bulk density, pH and drainage category using this information. The model is sufficiently accurate to provide estimates of these parameters from soils in the field. We discuss potential improvements to the approach and plans to integrate the model into a set of smartphone apps for estimating health and fertility indicators for Scottish soils.

  19. Assessment of nutrition, supplementation and body composition parameters on the example of professional volleyball players.

    Science.gov (United States)

    Zapolska, Joanna; Witczak, Katarzyna; Mańczuk, Angelika; Ostrowska, Lucyna

    2014-01-01

    Volleyball is a team game belonging to a group of sports disciplines that involve indirect fighting. Adequate energy coverage in athletes is a crucial issue. It depends primarily on the type, intensity and duration of physical activity related to the sports discipline practiced and to the training cycle duration. The average energy requirement in sportsmen is 50% higher than that of adults. The aim of the study was to characterize the mode of nutrition, including dietary supplements and to assess somatic indices in female volleyball players of the AZS Bialystok team. The study involved 17 women. Research tools included a questionnaire consisting of 24-hour recall, a questionnaire survey concerning supplement intake and body composition analysis performed using a bioimpedance analyzer InBody 220. Data analysis indicates that the anthropometric characteristics and body composition of the AZS Bialystok players meet the recommendations associated with the somatic features in volleyball. Daily diet of the volleyball players were of low-energy with regard to the recommendations for physically active people, with very low supply of carbohydrates and dietary fiber, excessive proportion of saturated fatty acids and dietary cholesterol, and too low content of monounsaturated and polyunsaturated fatty acids. Supply of vitamins and minerals was found to be alarmingly low, especially of iron and calcium; diet supplementation was insufficient. No significant abnormalities were noted in body composition of the study athletes. However, they are recommended to increase muscle mass and slightly reduce body fat. Results of diet evaluation show the need for education in the field of nutrition and the necessity of further research into dietary habits among sportsmen.

  20. Development of a Survey to Assess the Acceptability of an Innovative Contraception Practice among Rural Pharmacists

    Directory of Open Access Journals (Sweden)

    Michael Wong

    2014-03-01

    Full Text Available Improved access to effective contraceptive methods is needed in Canada, particularly in rural areas, where unintended pregnancy rates are high and specific sexual health services may be further away. A rural pharmacist may be the most accessible health care professional. Pharmacy practice increasingly incorporates cognitive services. In Canada many provinces allow pharmacists to independently prescribe for some indications, but not for hormonal contraception. To assess the acceptability for the implementation of this innovative practice in Canada, we developed and piloted a survey instrument. We chose questions to address the components for adoption and change described in Rogers’ “diffusion of innovations” theory. The proposed instrument was iteratively reviewed by 12 experts, then focus group tested among eight pharmacists or students to improve the instrument for face validity, readability, consistency and relevancy to community pharmacists in the Canadian context. We then pilot tested the survey among urban and rural pharmacies. 4% of urban and 35% of rural pharmacies returned pilot surveys. Internal consistency on repeated re-phrased questions was high (Cronbach’s Alpha = 0.901. We present our process for the development of a survey instrument to assess the acceptability and feasibility among Canadian community pharmacists for the innovative practice of the independent prescribing of hormonal contraception.

  1. Factors controlling volume errors through 2D gully erosion assessment: guidelines for optimal survey design

    Science.gov (United States)

    Castillo, Carlos; Pérez, Rafael

    2017-04-01

    The assessment of gully erosion volumes is essential for the quantification of soil losses derived from this relevant degradation process. Traditionally, 2D and 3D approaches has been applied for this purpose (Casalí et al., 2006). Although innovative 3D approaches have recently been proposed for gully volume quantification, a renewed interest can be found in literature regarding the useful information that cross-section analysis still provides in gully erosion research. Moreover, the application of methods based on 2D approaches can be the most cost-effective approach in many situations such as preliminary studies with low accuracy requirements or surveys under time or budget constraints. The main aim of this work is to examine the key factors controlling volume error variability in 2D gully assessment by means of a stochastic experiment involving a Monte Carlo analysis over synthetic gully profiles in order to 1) contribute to a better understanding of the drivers and magnitude of gully erosion 2D-surveys uncertainty and 2) provide guidelines for optimal survey designs. Owing to the stochastic properties of error generation in 2D volume assessment, a statistical approach was followed to generate a large and significant set of gully reach configurations to evaluate quantitatively the influence of the main factors controlling the uncertainty of the volume assessment. For this purpose, a simulation algorithm in Matlab® code was written, involving the following stages: - Generation of synthetic gully area profiles with different degrees of complexity (characterized by the cross-section variability) - Simulation of field measurements characterised by a survey intensity and the precision of the measurement method - Quantification of the volume error uncertainty as a function of the key factors In this communication we will present the relationships between volume error and the studied factors and propose guidelines for 2D field surveys based on the minimal survey

  2. Pubertal assessment: a national survey of attitudes, knowledge and practices of the US pediatric trainees.

    Science.gov (United States)

    Khokhar, Aditi; Ravichandran, Yagnaram; Stefanov, Dimitre G; Perez-Colon, Sheila

    2017-07-06

    Background and objective Sex maturity rating (SMR), defines different levels of sexual maturity, based on the development of secondary sexual characteristics. Periodic assessment of pubertal maturation by physicians is crucial for timely identification of puberty-related disorders. With this pilot study, we aimed to assess the attitudes, knowledge and practices of pubertal assessment by current US pediatric trainees. Methods An anonymous online survey questionnaire was sent to categorical pediatric residents at different levels of training and pediatric chief residents across the US. Results We received responses from 2496 pediatric residents from all over the US. We found that 96% of trainees understand the importance of assessing SMR, 62% feel confident in assessing it and 55% feel comfortable assessing the need for an endocrinology referral. Only 33% of trainees performed external genital exams during all regular clinic visits while 26.9% never performed them during sick visits and 6% never assessed SMR during any of the patient visits. Higher levels of training and having completed an endocrinology rotation were associated with improvement in comfort level, practice and knowledge of trainees regarding pubertal assessment. Conclusion This study revealed that the current clinical practices of performing external genital exams and SMR among pediatric residents need improvement. Stronger reinforcement from continuity clinic preceptors and/or online and clinic based resources for SMR assessment for trainees may improve adherence to the recommended guidelines.

  3. A Survey to Assess Family Physicians’ Motivation to Teach Undergraduates in Their Practices

    OpenAIRE

    2012-01-01

    BACKGROUND: In Germany, family physicians (FPs) are increasingly needed to participate in undergraduate medical education. Knowledge of FPs' motivation to teach medical students in their practices is lacking. PURPOSE: To describe a novel questionnaire that assesses the motivation of FPs to teach undergraduates in their practices and to show the results of a subsequent survey using this instrument. METHODS: The questionnaire was developed based on a review of the literature. Previously used em...

  4. Graduate Medical Education in Humanism and Professionalism: A Needs Assessment Survey of Pediatric Gastroenterology Fellows

    OpenAIRE

    Garvey, Katharine C.; Kesselheim, Jennifer C.; Herrick, Daniel B; WOOLF, Alan D.; Leichtner, Alan M.

    2014-01-01

    The deterioration of humanism and professionalism during graduate medical training is an acknowledged concern, and programs are required to provide professionalism education for pediatric fellows. We conducted a needs assessment survey in a national sample of 138 first- and second-year gastroenterology fellows (82% response rate). Most believed that present humanism and professionalism education met their needs, but this education was largely informal (eg, role modeling). Areas for formal edu...

  5. Short-Term Effects of Electroconvulsive Therapy on Subjective and Actigraphy-Assessed Sleep Parameters in Severely Depressed Inpatients

    Directory of Open Access Journals (Sweden)

    Alexander Hoogerhoud

    2015-01-01

    Full Text Available Background. Sleep disturbances are a key feature of major depression. Electroconvulsive treatment (ECT may improve polysomnography-assessed sleep characteristics, but its short-term effects on actigraphy-assessed and subjective sleep characteristics are unknown. We therefore aimed to assess the effects of ECT on subjective and objective sleep parameters in a proof-of-principle study. Methods. We assessed subjective and objective sleep parameters in 12 severely depressed patients up to 5 consecutive days during their ECT course, corresponding to a total of 43 nights (including 19 ECT sessions. The 12 patients were 83% female and on average 62 (standard deviation (SD 14 years old and had an average MADRS score of 40 at baseline (SD 21. Results. Subjective and objective sleep parameters were not directly affected by ECT. The subjective sleep efficiency parameter was similar on the day after ECT and other days. ECT did not affect the number of errors in the Sustained Attention to Response Task. Patients subjectively underestimated their total sleep time by 1.4 hours (P<0.001 compared to actigraphy-assessed sleep duration. Conclusion. ECT did not affect subjective and actigraphy-assessed sleep in the short term. Depressed patients profoundly underestimated their sleep duration.

  6. Quality Assessment Survey at the School of Civil Engineering at Aalborg University

    DEFF Research Database (Denmark)

    Brohus, Henrik

    2008-01-01

    As part of an improved quality assessment procedure at the School of Civil Engineering at Aalborg University, an online survey has been undertaken among all students. Due to external requirements and a wish for more structured feedback, an online questionnaire was presented to all students under...... the study board of civil engineering. The questionnaire was jointly developed for all study boards at Aalborg University. The questionnaire forms an investigation of students' satisfaction and evaluation of the overall structure of the education including self-reported performance assessment. The paper...

  7. Nuchal Skinfold Thickness: A Novel Parameter for Assessment of Body Composition in Childhood Craniopharyngioma.

    Science.gov (United States)

    Sterkenburg, Anthe S; Hoffmann, Anika; Reichel, Julia; Lohle, Kristin; Eveslage, Maria; Warmuth-Metz, Monika; Müller, Hermann L

    2016-12-01

    Hypothalamic obesity, cardiovascular disease (CVD), and relapse/progression have a major impact on prognosis in childhood-onset craniopharyngioma (CP). We analyzed nuchal skinfold thickness (NST) on magnetic resonance imaging performed for follow-up monitoring as a novel parameter for body composition (BC) and CVD in CP. The objective of the study was to identify the association of NST with body mass index (BMI), waist to height ratio (WHtR), functional capacity, and blood pressure (BP) in CP and controls. This was a cross-sectional and longitudinal prospective study in CP patients. The study was conducted at HIT-Endo, KRANIOPHARYNGEOM 2000/2007. Participants included 94 CP patients and 75 controls. There were no interventions. Association of NST with BC and BP in 43 CP and 43 controls was measured. NST correlated with BMI SD score (SDS; r = 0.78; P < .001; n = 169) and WHtR (r = 0.85; P < .001; n = 86) in the total cohort and CP patients (NST-BMI SDS: r = 0.77, P < .001, n = 94); NST-WHtR: r = 0.835, P < .001, n=43) and controls (NST-BMI SDS: r = 0.792, P < .001, n = 75; NST-WHtR: r = 0.671, P < .001, n = 43). In CP, systolic BP correlated with NST (r = 0.575, P < .001), BMI SDS (r = 0.434, P = .004), and WHtR (r = 0.386, P = .011). Similar results were observed for diastolic BP in CP. In multivariate analyses, NST had a predictive value for hypertension in postpubertal CP and controls (odds ratio 6.98, 95% confidence interval [1.65, 29.5], P = .008). During a longitudinal follow-up, changes in NST correlated with changes in BMI SDS (P < .001) and WHtR (P = .01) but not with changes in BP and functional capacity. Because monitoring of magnetic resonance imaging and BC is essential for follow-up in CP, NST could serve as a novel and clinically relevant parameter for longitudinal assessment of BC and CVD risk in CP.

  8. Venous Thromboembolism – Risk Assessment Tool and Thromboprophylaxis Policy: A National Survey

    LENUS (Irish Health Repository)

    Khan, MI

    2017-01-01

    Venous Thromboembolic (VTE) events in hospitalised patients are associated with significant mortality and morbidity and a major economic burden on the health service. It is well established in the literature that active implementation of a mandatory risk assessment tool and thromboprophylaxis policy reduces the incidence of hospital associated thrombosis (HAT). This study examines the utilization of a VTE risk assessment tool and thromboprophylaxis (TP) policy in Irish hospitals that manage acute admissions. A national survey was distributed to forty acute hospitals throughout Ireland. The response rate was 78% (31\\/40). The results showed that only 26% (n=8\\/31) of acute hospitals in Ireland have a local implemented TP policy. Six (75%) of these eight had a risk assessment tool in conjunction with the TP policy. All respondents who did not report to have a TP policy and risk assessment tool agreed that they should implement VTE prevention policy at their hospital. Based on the data from this survey and evidence from the effectiveness of the VTE prevention programme introduced in the United Kingdom, there is a need for a national risk assessment and thromboprophylaxis policy in Ireland. This change in practice would have the potential to prevent or reduce the morbidity and mortality associated with hospital acquired thrombosis

  9. Assessment of Some Immune Parameters in Occupationally Exposed Nuclear Power Plant Workers: Flow Cytometry Measurements of T Lymphocyte Subpopulations and Immunoglobulin Determination.

    Science.gov (United States)

    Gyuleva, Ilona Mihaylova; Penkova, Kalina Ivanova; Rupova, Ivanka Tankova; Panova, Delyana Yonkova; Djounova, Jana Nikolaeva

    2015-01-01

    A 10-year survey of immune status of nuclear power plant (NPP) workers was assessed by cellular and humoral immune parameters. The cumulative doses of NPP workers were in the range of 0.06 to 766.36 mSv. The results did not show significant deviations in the studied parameters of cellular and humoral immunity, but a tendency of elevated values in CD3+4+ helper inducers cells, especially its CD4+62L+ subpopulation, regulatory CD4+25+ cells, CD8+28+ cytotoxic subpopulation, and immunoglobulin M, was established. The observed trend of the above-mentioned parameters could be interpreted by assumption that while the adaptation processes are dominated with low prevalence of T-helper (Th) 1 immune response to cumulative doses less than 100 mSv, a switch to Th-2 response occurred at doses above 100 mSv. The impact of a number of other confounding factors on the immune system does not allow definitive conclusions about the direct radiation-induced changes in immune parameters.

  10. Unmanned Aerial Vehicles (UAVs) for surveying marine fauna: assessing detection probability.

    Science.gov (United States)

    Hodgson, Amanda; Peel, David; Kelly, Natalie

    2017-02-08

    Aerial surveys are conducted for various fauna to assess abundance, distribution, and habitat use over large spatial scales. They are traditionally conducted using light-aircraft with observers recording sightings in real time. Unmanned Aerial Vehicles (UAVs) offer an alternative with many potential advantages, including eliminating human-risk. To be effective, this emerging platform needs to provide detection rates of animals comparable to traditional methods. UAVs can also acquire new types of information, and this new data requires a re-evaluation of traditional analyses used in aerial surveys; including estimating the probability of detecting animals. We conducted 17 replicate UAV surveys of humpback whales (Megaptera novaeangliae) while simultaneously obtaining a 'census' of the population from land-based observations, to assess UAV detection probability. The ScanEagle UAV, carrying a digital SLR camera, continuously captured images (with 75% overlap) along transects covering the visual range of land-based observers. We also used ScanEagle to conduct focal follows of whale pods (n = 12, mean duration = 40 min), to assess a new method of estimating availability. A comparison of the whale detections from the UAV to the land-based census provided an estimated UAV detection probability of 0.33 (CV = 0.25) (incorporating both availability and perception biases), which was not affected by environmental covariates (Beaufort sea state, glare and cloud cover). According to our focal follows, the mean availability was 0.63 (CV = 0.37), with pods including mother/calf pairs having a higher availability (0.86, CV = 0.20) than those without (0.59, CV = 0.38). The follows also revealed (and provided a potential correction for) a downward bias in group size estimates from the UAV surveys, which resulted from asynchronous diving within whale pods, and a relatively short observation window of 9 s. We have shown that UAVs are an effective alternative to traditional methods

  11. Guidebook for performance assessment parameters used in the Waste Isolation Pilot Plant compliance certification application. Volume 1: Main report

    Energy Technology Data Exchange (ETDEWEB)

    Howarth, S.M.; Martell, M.A.; Weiner, R. [Sandia National Labs., Albuquerque, NM (United States); Lattier, C. [GRAM, Inc., Albuquerque, NM (United States)

    1998-06-01

    The Waste Isolation Pilot Plant (WIPP) Compliance Certification Application (CCA) Performance Assessment (PA) Parameter Database and its ties to supporting information evolved over the course of two years. When the CCA was submitted to the Environmental Protection Agency (EPA) in October 1996, information such as identification of parameter value or distribution source was documented using processes established by Sandia National Laboratories WIPP Quality Assurance Procedures. Reviewers later requested additional supporting documentation, links to supporting information, and/or clarification for many parameters. This guidebook is designed to document a pathway through the complex parameter process and help delineate flow paths to supporting information for all WIPP CCA parameters. In addition, this report is an aid for understanding how model parameters used in the WIPP CCA were developed and qualified. To trace the source information for a particular parameter, a dual-route system was established. The first route uses information from the Parameter Records Package as it existed when the CCA calculations were run. The second route leads from the EPA Parameter Database to additional supporting information.

  12. Guidebook for performance assessment parameters used in the Waste Isolation Pilot Plant compliance certification application. Volume 2: Appendices

    Energy Technology Data Exchange (ETDEWEB)

    Howarth, S.M.; Martell, M.A.; Weiner, R. [Sandia National Labs., Albuquerque, NM (United States); Lattier, C. [GRAM, Inc., Albuquerque, NM (United States)

    1998-06-01

    The Waste Isolation Pilot Plant (WIPP) Compliance Certification Application (CCA) Performance Assessment (PA) Parameter Database and its ties to supporting information evolved over the course of two years. When the CCA was submitted to the Environmental Protection Agency (EPA) in October 1996, information such as identification of parameter value or distribution source was documented using processes established by Sandia National Laboratories WIPP Quality Assurance Procedures. Reviewers later requested additional supporting documentation, links to supporting information, and/or clarification for many parameters. This guidebook is designed to document a pathway through the complex parameter process and help delineate flow paths to supporting information for all WIPP CCA parameters. In addition, this report is an aid for understanding how model parameters used in the WIPP CCA were developed and qualified. To trace the source information for a particular parameter, a dual-route system was established. The first route uses information from the Parameter Records package as it existed when the CCA calculations were run. The second route leads from the EPA Parameter Database to additional supporting information.

  13. Processing of thermal parameters for the assessment of geothermal potential of sedimentary basins

    Science.gov (United States)

    Pasquale, V.; Chiozzi, P.; Gola, G.; Verdoya, M.

    2009-04-01

    The growing interest on renewable energy sources is stimulating new efforts aimed at the assessment of geothermal potential in several countries, and new developments are expected in the near future. In this framework, a basic step forward is to focus geothermal investigations on geological environments which so far have been relatively neglected. Some intracontinental sedimentary basins could reveal important low enthalpy resources. The evaluation of the geothermal potential in such geological contexts involves the synergic use of geophysical and hydrogeological methodologies. In sedimentary basins a large amount of thermal and hydraulic data is generally available from petroleum wells. Unfortunately, borehole temperature data are often affected by a number of perturbations which make very difficult determination of the true geothermal gradient. In this paper we addressed the importance of the acquisition of thermal parameters (temperature, geothermal gradient, thermal properties of the rock) and the technical processing which is necessary to obtain reliable geothermal characterizations. In particular, techniques for corrections of bottom-hole temperature (BHT) data were reviewed. The objective was to create a working formula usable for computing the undisturbed formation temperature for specific sedimentary basins. As test areas, we analysed the sedimentary basins of northern Italy. Two classical techniques for processing temperature data from oil wells are customarily used: (i) the method by Horner, that requires two or more measurements of bottom-hole temperatures carried out at the same depth but at different shut-in times te and (ii) the technique by Cooper and Jones, in which several physical parameters of the mud and formation need to be known. We applied both methods to data from a number of petroleum explorative wells located in two areas of the Po Plain (Apenninic buried arc and South Piedmont Basin - Pedealpine homocline). From a set of about 40 wells

  14. Information on Hydrologic Conceptual Models, Parameters, Uncertainty Analysis, and Data Sources for Dose Assessments at Decommissioning Sites

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, Philip D.; Gee, Glendon W.; Nicholson, Thomas J.

    2000-02-28

    This report addresses issues related to the analysis of uncertainty in dose assessments conducted as part of decommissioning analyses. The analysis is limited to the hydrologic aspects of the exposure pathway involving infiltration of water at the ground surface, leaching of contaminants, and transport of contaminants through the groundwater to a point of exposure. The basic conceptual models and mathematical implementations of three dose assessment codes are outlined along with the site-specific conditions under which the codes may provide inaccurate, potentially nonconservative results. In addition, the hydrologic parameters of the codes are identified and compared. A methodology for parameter uncertainty assessment is outlined that considers the potential data limitations and modeling needs of decommissioning analyses. This methodology uses generic parameter distributions based on national or regional databases, sensitivity analysis, probabilistic modeling, and Bayesian updating to incorporate site-specific information. Data sources for best-estimate parameter values and parameter uncertainty information are also reviewed. A follow-on report will illustrate the uncertainty assessment methodology using decommissioning test cases.

  15. Optical assessment of colored dissolved organic matter and its related parameters in dynamic coastal water systems

    Science.gov (United States)

    Shanmugam, Palanisamy; Varunan, Theenathayalan; Nagendra Jaiganesh, S. N.; Sahay, Arvind; Chauhan, Prakash

    2016-06-01

    Prediction of the curve of the absorption coefficient of colored dissolved organic matter (CDOM) and differentiation between marine and terrestrially derived CDOM pools in coastal environments are hampered by a high degree of variability in the composition and concentration of CDOM, uncertainties in retrieved remote sensing reflectance and the weak signal-to-noise ratio of space-borne instruments. In the present study, a hybrid model is presented along with empirical methods to remotely determine the amount and type of CDOM in coastal and inland water environments. A large set of in-situ data collected on several oceanographic cruises and field campaigns from different regional waters was used to develop empirical methods for studying the distribution and dynamics of CDOM, dissolved organic carbon (DOC) and salinity. Our validation analyses demonstrated that the hybrid model is a better descriptor of CDOM absorption spectra compared to the existing models. Additional spectral slope parameters included in the present model to differentiate between terrestrially derived and marine CDOM pools make a substantial improvement over those existing models. Empirical algorithms to derive CDOM, DOC and salinity from remote sensing reflectance data demonstrated success in retrieval of these products with significantly low mean relative percent differences from large in-situ measurements. The performance of these algorithms was further assessed using three hyperspectral HICO images acquired simultaneously with our field measurements in productive coastal and lagoon waters on the southeast part of India. The validation match-ups of CDOM and salinity showed good agreement between HICO retrievals and field observations. Further analyses of these data showed significant temporal changes in CDOM and phytoplankton absorption coefficients with a distinct phase shift between these two products. Healthy phytoplankton cells and macrophytes were recognized to directly contribute to the

  16. Assessing historical fish community composition using surveys, historical collection data, and species distribution models.

    Directory of Open Access Journals (Sweden)

    Ben Labay

    Full Text Available Accurate establishment of baseline conditions is critical to successful management and habitat restoration. We demonstrate the ability to robustly estimate historical fish community composition and assess the current status of the urbanized Barton Creek watershed in central Texas, U.S.A. Fish species were surveyed in 2008 and the resulting data compared to three sources of fish occurrence information: (i historical records from a museum specimen database and literature searches; (ii a nearly identical survey conducted 15 years earlier; and (iii a modeled historical community constructed with species distribution models (SDMs. This holistic approach, and especially the application of SDMs, allowed us to discover that the fish community in Barton Creek was more diverse than the historical data and survey methods alone indicated. Sixteen native species with high modeled probability of occurrence within the watershed were not found in the 2008 survey, seven of these were not found in either survey or in any of the historical collection records. Our approach allowed us to more rigorously establish the true baseline for the pre-development fish fauna and then to more accurately assess trends and develop hypotheses regarding factors driving current fish community composition to better inform management decisions and future restoration efforts. Smaller, urbanized freshwater systems, like Barton Creek, typically have a relatively poor historical biodiversity inventory coupled with long histories of alteration, and thus there is a propensity for land managers and researchers to apply inaccurate baseline standards. Our methods provide a way around that limitation by using SDMs derived from larger and richer biodiversity databases of a broader geographic scope. Broadly applied, we propose that this technique has potential to overcome limitations of popular bioassessment metrics (e.g., IBI to become a versatile and robust management tool for determining

  17. [Assessment of surveys of adolescents about smoking and the use of alcohol and cannabis in Spain].

    Science.gov (United States)

    Villalbí, Joan R; Suelves, Josep M; Saltó, Esteve; Cabezas, Carmen

    2011-01-01

    Monitoring health-related behaviors in adolescence requires instruments capable of providing valid data The objective of this paper is to review and assess existing information sources on smoking and alcohol and cannabis use by age and sex among adolescents in Spain. A search was carried out for studies with repeated observations over time, and their methods and characteristics reviewed. For each study, the number of surveys, their frequency and their sample size are assessed, as well as the instrument used, the available indicators, and the availability, accessibility and comparability of the information. Five sources of information providing data over extended periods of time with accessible data are identified: the National survey on drug use in secondary-school children (Encuesta estatal sobre uso de drogas en estudiantes de secundaria; ESTUDES); the Health behavior in school-aged children study (ECERSHBSC); the Monitoring system for risk factors associated with non-transmissible diseases in young people (Sistema de Vigilancia de Factores de Riesgo Asociados a Enfermedades No Transmisibles dirigido a poblacion juvenil; SIVFRENT-J); the Study of risk factors in secondary school children (Estudio de factores de riesgo en estudiantes de secundaria; FRESC); and the Monitoring study of health behaviors in adolescents (Estudio de monitorizacion de las conductas de salud de los adolescents; EMCSAT). Two of the surveys cover the whole of Spain, one is regional, and two are city-specific. All use solid methods and representative sampling techniques. In some, changes have occurred that make comparison of the evolution of some indicators difficult. Report accessibility is variable; comparability is limited for some surveys. Some provide almost no stratified data. There are valuable sources of data, but all have shortcomings. Changing the measurement instrument in a survey for comparison with others raises dilemmas as to the internal comparability of series.

  18. Evaluation of intra-annual variation in U.S. Geological Survey National Water Quality Assessment ground water quality data.

    Science.gov (United States)

    Rosen, Michael R; Voss, Frank D; Arufe, Jorge A

    2008-01-01

    Assessment of ground-water quality trends under the U.S. Geological Survey National Water-Quality Assessment Program (NAWQA) included the analysis of samples collected on a quarterly basis for 1 yr between 2001 and 2005. The purpose of this quarterly sampling was to test the hypothesis that variations in the concentration of water-quality parameters of selected individual wells could demonstrate that the intra-annual variation was greater or less than the decadal changes observed for a trend network. Evaluation of more than 100 wells over this period indicates that 1 yr of quarterly sampling is not adequate to address the issue of intra-annual variation because variations seem to be random and highly variable between different wells in the same networks and among networks located in different geographical areas of the USA. In addition, the data from only 1 yr makes it impossible to assess whether variations are due to univariate changes caused by land use changes, hydrologic variations due to variable recharge, or variations caused by ground-water pumping. These data indicate that funds allocated to this activity can be directed to the collection of more effective trend data, including age dating of all wells in the NAWQA network using multiple techniques. Continued evaluation of data and updating of monitoring plans of the NAWQA program is important for maintaining relevance to national goals and scientific objectives.

  19. [Engine-driven preparation of curved root canals: a platform to assess physical parameters].

    Science.gov (United States)

    Peters, O A; Kappeler, S; Bucher, W; Barbakow, F

    2001-01-01

    The number of engine-driven rotary instruments available on the market is steadily increasing. These instruments enable clinicians to prepare better shaped root canals, however, rotary instruments have a higher risk for fracture than hand instruments. Unfortunately, the stresses placed on engine-driven rotary instruments in curved canals are insufficiently studied. The aim of this study was to develop a device which could measure more accurately the physical parameters influencing rotary instruments in curved canals. For this purpose, a specially designed machine was constructed to measure the torque which develops between the rotary instrument and the motor. Apical forces and penetration depths could also be directly measured in real time. A variety of other measurements was also possible because of other special set-ups integrated into the device. In the current study torque was assessed for GT-Files, size 35 with a .12 and sizes 20 with a .12 to .06 taper. In additions to preparations in simulated canals in plastic blocks, the "ISO 3630-1 specification for fracture moment" and "number of cycles till fatigue fracture" was measured. The findings indicated that when instruments were used for preparations, torques up to 40 Nmm were present. This exceeded the static fracture load, which was less than than 13 Nmm for the size 20 with .12 taper. In contrast, the number of rotations were more than 10 times lower when shaping canals in plastic blocks with a 5 mm radius of curvature than the number of rotations to fracture in the "cyclic fatigue test". This suggests that a GT-instrument could be used in ten canals. The apical force was always greater than 1 N and occasionally, 8 N or more was recorded. Further studies on natural teeth with varying canal geometries are required using the specially developed torsional machine to reduce the incidence of instrument fracture. In this way an efficient clinical potential can be confirmed for engine-driven rotary instruments in

  20. Assessing Nutritional Parameters of Brown Bear Diets among Ecosystems Gives Insight into Differences among Populations.

    Directory of Open Access Journals (Sweden)

    Claudia López-Alfaro

    Full Text Available Food habit studies are among the first steps used to understand wildlife-habitat relationships. However, these studies are in themselves insufficient to understand differences in population productivity and life histories, because they do not provide a direct measure of the energetic value or nutritional composition of the complete diet. Here, we developed a dynamic model integrating food habits and nutritional information to assess nutritional parameters of brown bear (Ursus arctos diets among three interior ecosystems of North America. Specifically, we estimate the average amount of digestible energy and protein (per kilogram fresh diet content in the diet and across the active season by bears living in western Alberta, the Flathead River (FR drainage of southeast British Columbia, and the Greater Yellowstone Ecosystem (GYE. As well, we estimate the proportion of energy and protein in the diet contributed by different food items, thereby highlighting important food resources in each ecosystem. Bear diets in Alberta had the lowest levels of digestible protein and energy through all seasons, which might help explain the low reproductive rates of this population. The FR diet had protein levels similar to the recent male diet in the GYE during spring, but energy levels were lower during late summer and fall. Historic and recent diets in GYE had the most energy and protein, which is consistent with their larger body sizes and higher population productivity. However, a recent decrease in consumption of trout (Oncorhynchus clarki, whitebark pine nuts (Pinus albicaulis, and ungulates, particularly elk (Cervus elaphus, in GYE bears has decreased the energy and protein content of their diet. The patterns observed suggest that bear body size and population densities are influenced by seasonal availability of protein an energy, likely due in part to nutritional influences on mass gain and reproductive success.

  1. Routine Hemostasis and Hemogram Parameters: Valuable Assessments for Coagulation Disorder and Chemotherapy in Cancer Patients

    Institute of Scientific and Technical Information of China (English)

    Ying-Wei Zhu; Tong-Bao Feng; Xian-Ju Zhou; Xue-Li Hu; Jie Ding; Wen-Yu Zhu; Dan-Ping Qian

    2016-01-01

    Background:The clotting system abnormalities are the common complication in cancer patients.The aim of this retrospective study was to evaluate the coagulation state,clinical features,and treatment in cancer patients by routine tests.Methods:A total of 2328 patients with different types of cancer were classified as the positive group (n =1419,including 53 patients with thrombosis) and the negative group (n =909) based on D-dimer (DD) value.Of the 2328 cases,354 were admitted for chemotherapy.Hemostasis test and complete blood count (CBC) were performed during treatment or following-up.Results:This study showed that the hypercoagulable state was affected not only by clinical staging (P < 0.0001) but also by metastasis site (P < 0.0001 for bone vs.lung).Compared to negative DD group,the higher fibrinogen level,the extended activated partial thromboplastin time,and prothrombin time interacted markedly with disease clinical stage (P < 0.05) in the positive group.Between positive DD groups with and without thrombus,the significantly statistic difference in white blood cell (WBC) and DD (P < 0.05) rather than in red blood cell (RBC) and platelet count was observed.However,the higher DD level was not correlated with WBC,RBC,and platelet count in the positive DD group.Furthermore,the hypercoagulable plasma profile in cancer patients was moderated 2-3 weeks after chemotherapy (P < 0.05 for first six cycles).Conclusions:The routine hemostatic parameters and CBC are valuable to assessment for thrombosis and chemotherapy even for disease prognosis.

  2. Assessing Nutritional Parameters of Brown Bear Diets among Ecosystems Gives Insight into Differences among Populations.

    Science.gov (United States)

    López-Alfaro, Claudia; Coogan, Sean C P; Robbins, Charles T; Fortin, Jennifer K; Nielsen, Scott E

    2015-01-01

    Food habit studies are among the first steps used to understand wildlife-habitat relationships. However, these studies are in themselves insufficient to understand differences in population productivity and life histories, because they do not provide a direct measure of the energetic value or nutritional composition of the complete diet. Here, we developed a dynamic model integrating food habits and nutritional information to assess nutritional parameters of brown bear (Ursus arctos) diets among three interior ecosystems of North America. Specifically, we estimate the average amount of digestible energy and protein (per kilogram fresh diet) content in the diet and across the active season by bears living in western Alberta, the Flathead River (FR) drainage of southeast British Columbia, and the Greater Yellowstone Ecosystem (GYE). As well, we estimate the proportion of energy and protein in the diet contributed by different food items, thereby highlighting important food resources in each ecosystem. Bear diets in Alberta had the lowest levels of digestible protein and energy through all seasons, which might help explain the low reproductive rates of this population. The FR diet had protein levels similar to the recent male diet in the GYE during spring, but energy levels were lower during late summer and fall. Historic and recent diets in GYE had the most energy and protein, which is consistent with their larger body sizes and higher population productivity. However, a recent decrease in consumption of trout (Oncorhynchus clarki), whitebark pine nuts (Pinus albicaulis), and ungulates, particularly elk (Cervus elaphus), in GYE bears has decreased the energy and protein content of their diet. The patterns observed suggest that bear body size and population densities are influenced by seasonal availability of protein an energy, likely due in part to nutritional influences on mass gain and reproductive success.

  3. More Efficient Bayesian-based Optimization and Uncertainty Assessment of Hydrologic Model Parameters

    Science.gov (United States)

    2012-02-01

    is more objective, repeatable, and better capitalizes on the computational capacity of the modern computer) is an active area of research and...existence of multiple local optima , non-smooth objective function surfaces, and long valleys in parameter space that are a result of excessive parameter...outputs, structural aspects of the model, as well as its input dataset, model parameters that are adjustable through the calibration process, and the

  4. Assessing models for parameters of the Ångström-Prescott formula in China

    DEFF Research Database (Denmark)

    Liu, Xiaoying; Xu, Yinlong; Zhong, Xiuli

    2012-01-01

    Application of the Ångström–Prescott (A–P) model, one of the best rated global solar irradiation (Rs) models based on sunshine, is often limited by the lack of model parameters. Increasing the availability of its parameters in the absence of Rs measurement provides an effective way to overcome...... this problem. Although some models relating the A–P parameters to other variables have been developed, they generally lack worldwide validity test. Using data from 80 sites covering three agro-climatic zones in China, we evaluated seven models that relate the parameters to annual average of relative sunshine...

  5. Assessment of Coronal Radiographic Parameters of the Spine in the Treatment of Adolescent Idiopathic Scoliosis

    Directory of Open Access Journals (Sweden)

    Mohsen Karami

    2016-10-01

    Preoperative coronal balance is very important to make a balanced spine after surgery. Other parameters like Lenke classification or main thoracic overcorrection did not affect postoperative coronal decompensation.

  6. Assessment of parameter uncertainty in hydrological model using a Markov-Chain-Monte-Carlo-based multilevel-factorial-analysis method

    Science.gov (United States)

    Zhang, Junlong; Li, Yongping; Huang, Guohe; Chen, Xi; Bao, Anming

    2016-07-01

    Without a realistic assessment of parameter uncertainty, decision makers may encounter difficulties in accurately describing hydrologic processes and assessing relationships between model parameters and watershed characteristics. In this study, a Markov-Chain-Monte-Carlo-based multilevel-factorial-analysis (MCMC-MFA) method is developed, which can not only generate samples of parameters from a well constructed Markov chain and assess parameter uncertainties with straightforward Bayesian inference, but also investigate the individual and interactive effects of multiple parameters on model output through measuring the specific variations of hydrological responses. A case study is conducted for addressing parameter uncertainties in the Kaidu watershed of northwest China. Effects of multiple parameters and their interactions are quantitatively investigated using the MCMC-MFA with a three-level factorial experiment (totally 81 runs). A variance-based sensitivity analysis method is used to validate the results of parameters' effects. Results disclose that (i) soil conservation service runoff curve number for moisture condition II (CN2) and fraction of snow volume corresponding to 50% snow cover (SNO50COV) are the most significant factors to hydrological responses, implying that infiltration-excess overland flow and snow water equivalent represent important water input to the hydrological system of the Kaidu watershed; (ii) saturate hydraulic conductivity (SOL_K) and soil evaporation compensation factor (ESCO) have obvious effects on hydrological responses; this implies that the processes of percolation and evaporation would impact hydrological process in this watershed; (iii) the interactions of ESCO and SNO50COV as well as CN2 and SNO50COV have an obvious effect, implying that snow cover can impact the generation of runoff on land surface and the extraction of soil evaporative demand in lower soil layers. These findings can help enhance the hydrological model

  7. Concepts of Confidence in Tendency Survey Research: An Assessment with Multi-group Confirmatory Factor Analysis.

    Science.gov (United States)

    Białowolski, Piotr

    In this paper, we investigate the link between the formal definition of confidence in tendency surveys and its measurement. We advocate for the use of reflective measures in an assessment of the confidence level in both consumer and industrial indicators. Based on the data from Poland's tendency survey research, we use a multi-group confirmatory factor analytical approach to demonstrate that the set of indicators proposed by the European Commission methodology that is currently used might be not appropriate to measure the concept of confidence consistently, both within and between periods. The conclusion is true for the confidence indicator in the area of consumer tendency surveys and for the tendency survey in the manufacturing industry. We search for possible amendments that help either to find the sources of instability for the indicators proposed by the guidelines of the European Commission or to select a different set of indicators for the concept of confidence. However, we determine that the differences between the newly proposed indicator that describe industrial confidence and the indicators based on the European Commission methodology are small in terms of correlations and predictive validity.

  8. [Assessment of a residency training program in endocrinology and nutrition by physicians: results of a survey].

    Science.gov (United States)

    Moreno-Fernández, Jesús; Gutiérrez-Alcántara, Carmen; Palomares-Ortega, Rafael; García-Manzanares, Alvaro; Benito-López, Pedro

    2011-12-01

    The current training program for resident physicians in endocrinology and nutrition (EN) organizes their medical learning. Program evaluation by physicians was assessed using a survey. The survey asked about demographic variables, EN training methods, working time and center, and opinion on training program contents. Fifty-one members of Sociedad Castellano-Manchega de Endocrinología, Nutrición y Diabetes, and Sociedad Andaluza de Endocrinología y Nutrición completed the survey. Forty-percent of them disagreed with the compulsory nature of internal medicine, cardiology, nephrology and, especially, neurology rotations (60%); a majority (>50%) were against several recommended rotations included in the program. The fourth year of residence was considered by 37.8% of respondents as the optimum time for outpatient and inpatient control and monitoring without direct supervision. The recommended monthly number of on-call duties was 3.8±1.2. We detected a positive opinion about extension of residence duration to 4.4±0.5 years. Doctoral thesis development during the residence period was not considered convenient by 66.7% of physicians. Finally, 97.8% of resident physicians would recommend residency in EN to other colleagues. Endocrinologists surveyed disagreed with different training program aspects such as the rotation system, skill acquisition timing, and on-call duties. Therefore, an adaptation of the current training program in EN would be required. Copyright © 2011 SEEN. Published by Elsevier Espana. All rights reserved.

  9. Assessment of spatio-temporal gait parameters from trunk accelerations during human walking

    NARCIS (Netherlands)

    Zijlstra, W; Hof, AL

    2003-01-01

    This paper studies the feasibility of an analysis of spatio-temporal gait parameters based upon accelerometry. To this purpose, acceleration patterns of the trunk and their relationships with spatio-temporal gait parameters were analysed in healthy subjects. Based on model predictions of the body's

  10. Assessment of spatio-temporal gait parameters from trunk accelerations during human walking

    NARCIS (Netherlands)

    Zijlstra, W; Hof, AL

    2003-01-01

    This paper studies the feasibility of an analysis of spatio-temporal gait parameters based upon accelerometry. To this purpose, acceleration patterns of the trunk and their relationships with spatio-temporal gait parameters were analysed in healthy subjects. Based on model predictions of the body's

  11. Quantification of remodeling parameter sensitivity - assessed by a computer simulation model

    DEFF Research Database (Denmark)

    Thomsen, J.S.; Mosekilde, Li.; Mosekilde, Erik

    1996-01-01

    We have used a computer simulation model to evaluate the effect of several bone remodeling parameters on vertebral cancellus bone. The menopause was chosen as the base case scenario, and the sensitivity of the model to the following parameters was investigated: activation frequency, formation...

  12. ILearning and EHomeStudy: Multimedia Training and Assessments for Field Survey Staff

    Directory of Open Access Journals (Sweden)

    Charles Loftis

    2008-04-01

    Full Text Available Survey data collection projects strive to collect high quality data from survey respondents. The quality of the data collected is greatly dependent upon the effectiveness of field interviewers (FIs to conduct inperson screenings and interviews. Training FIs and subsequently assessing their knowledge of project protocol, methods and interviewing techniques is critical to the overall success of any data collection effort. For large surveys, as the number of FIs increase, the cost of inperson training can become prohibitively large. As a cost effective solution to increase the quality of the field data, we developed a suite of web and media based training and assessment tools called iLearning and eHomeStudy for training field staff. Besides saving the project costs associated with inperson training, we are also able to provide refresher trainings throughout the year. This application also enables FIs to view standardized training courses at their convenience and at their own pace. This paper describes the technical details, key features and benefits of this application suite, and also it includes some details on user satisfaction and future directions.

  13. ILearning and EHomeStudy: Multimedia Training and Assessments for Field Survey Staff

    Directory of Open Access Journals (Sweden)

    Charles Loftis

    2008-04-01

    Full Text Available Survey data collection projects strive to collect high quality data from survey respondents. The quality of the data collected is greatly dependent upon the effectiveness of field interviewers (FIs to conduct inperson screenings and interviews. Training FIs and subsequently assessing their knowledge of project protocol, methods and interviewing techniques is critical to the overall success of any data collection effort. For large surveys, as the number of FIs increase, the cost of inperson training can become prohibitively large. As a cost effective solution to increase the quality of the field data, we developed a suite of web and media based training and assessment tools called iLearning and eHomeStudy for training field staff. Besides saving the project costs associated with inperson training, we are also able to provide refresher trainings throughout the year. This application also enables FIs to view standardized training courses at their convenience and at their own pace. This paper describes the technical details, key features and benefits of this application suite, and also it includes some details on user satisfaction and future directions.

  14. Accuracy assessment of GPS and surveying technique in forest road mapping

    Directory of Open Access Journals (Sweden)

    Ehsan Abdi

    2012-12-01

    Full Text Available Forest road networks provide access to the forest as a source of timber production and tourism services. Moreover, it is considered the main tool to protect forests from fire and smuggling. The prerequisite of road management and maintenance planning is to have spatial distribution and map of the roads. But newly constructed or some other forest road segments are not available in national maps. Therefore, mapping these networks is raised as a priority for a forest manager. The aim of this study was to assess accuracy of routine methods in road mapping. For this purpose, Patom district forest road was selected and road network map was extracted from the National Cartographic Center maps as the ground truth or base map. The map of the network was acquired using two methods, a GPS receiver and survey technique. Selecting 70 sample points on the network and considering the National Cartographic Center map as base map, accuracy was determined for two methods. The results showed that while the survey method was more accurate at the beginning of the path (first 500 meters, accumulation of errors resulted in higher rates of error in this method (up to 263 meters compared to GPS. Mann-Whitney test revealed significant differences in accuracy of two methods and mean accuracies were 38.86 and 147.90 for GPS and surveying respectively. The results showed that for samples 1-15 there was no significant difference between the survey and GPS data but for samples 28-42 and 56-70 statistically significant difference were existed between the survey and GPS data. Regression analysis showed that the relation between GPS and surveying accuracies and distance were best defined by cubic (R2 adj = 0.65 and linear (R2 adj = 0.83 regression models respectively. Applying 10 and 5 meters buffers around base map, 68 and 41% of GPS and 44 and 21% of surveying derived road were overlapped with buffer zones. The time required to complete the survey was found to increase the

  15. Optimal clinical assessment strategies for chemotherapy-induced peripheral neuropathy (CIPN): a systematic review and Delphi survey.

    Science.gov (United States)

    McCrary, J Matt; Goldstein, David; Boyle, Frances; Cox, Keith; Grimison, Peter; Kiernan, Matthew C; Krishnan, Arun V; Lewis, Craig R; Webber, Kate; Baron-Hay, Sally; Horvath, Lisa; Park, Susanna B

    2017-06-07

    Chemotherapy-induced peripheral neuropathy (CIPN) is a prominent side effect of the treatment of cancer. Despite this frequent complication, there has been no comprehensive review and quality appraisal of CIPN assessments. The purpose of this study is to provide a definitive quality appraisal of CIPN assessment strategies for clinical use. Relevant studies were identified through database searches of Medline, Embase, CINAHL, and Cochrane. CIPN assessment strategies from included articles were extracted and initially rated by an oncologist and neurophysiologist according to criteria related to assessment depth, comprehensiveness, appropriateness, and reliability. The six highest scoring assessment strategies were the focus of a two-round Delphi survey of a working party of 32 physicians, nurses, and consumers to achieve consensus on the highest rated assessments for each criterion. The database search yielded 117 distinct CIPN assessments that were extracted from 2373 articles. Three patient-reported outcome surveys and three clinician-based assessments were included in the Delphi survey. No consensus was generated regarding the best overall CIPN assessment, although good (≥70%) consensus was achieved regarding the best assessment within each criterion. The Participant Neurotoxicity Questionnaire (PNQ) was rated the highest overall and patient-reported outcome (PRO) assessment, while the Total Neuropathy Score clinical version (TNSc) was the highest rated clinician-based assessment. A diverse range of CIPN assessments currently exists. While several assessments assess CIPN symptoms with adequate comprehensiveness, depth, language, and feasibility, the consensus 'gold standard' clinical assessment remains to be established.

  16. ASSESSMENT OF HYDROMORPHOLOGICAL CONDITIONS OF URBAN STREAMS WITH URBAN RIVER SURVEY METHOD

    Directory of Open Access Journals (Sweden)

    Adam Marek Hamerla

    2015-01-01

    Full Text Available In the paper some aspects of potential use of the Urban River Survey (URS method for hydro-morphological assessment of urban river channels/corridors in Poland are discussed, includingthe URS aspects and criteria. The URS aspects/criteria take into account the specificity of urban watercourse omitted both in the RHS (River Habitat Survey which is more prevalent in Europe, and in Polish MHR method. The URS can be used to classify urban watercourses according to their ecological status, as well as in building scenarios of possible reclamation/restoration activities. The watercourse monitoring with the use of URS can be an important element of the local urban catchment management.

  17. Assessment of the microbial parameters along the production phases at a dairy plant

    Directory of Open Access Journals (Sweden)

    Angelovski Ljupco

    2012-01-01

    Full Text Available The main objective of this paper was to detect the prevalence of pathogenic bacteria (Listeria monocytogenes, Campylobacter spp., Salmonella spp., Staphylococcus aureus and Escherichia coli in raw milk, to assess the hygiene parameters during the milk processing and to evaluate the safety of the fi nal dairy products using standard ISO methods. Staphylococcus aureus showed highest prevalence of the pathogen microorganisms (85%, followed by Escherichia coli (46% and Listeria monocytogenes (9.8 in bulk tank milk samples. Campylobacter spp. and Salmonella spp. were not detected in any of the tested samples.The swab samples taken from employees and working surfaces, water samples and pasteurized milk samples detected inadequate sanitary procedures during the phase of milk processing. Analysis of the swabs from employees hands revealed 1 positive sample for enumeration for Enterobacteriaceae and 7 samples with higher total viable count that did not comply withthe legislative, while the analysis of the swabs from working surfaces detected 5 samples positive for Enterobacteriaceae and 4 samples with higher total viable count that did not comply with the same legislative. The analysis of the water samples detected 2 samples with higher total viable count on 22°C, 2 samples for total viable count on 37°C and 1 sample for coliform bacteria that did not comply with the national legislative. None of the samples showed presence of Pseudomonas aeruginosa, Escherichia coli, sulphite reducing clostridia and intestinal enterococci. The analysis ofthe pasteurized milk confi rmed 3 samples with presence of Enterobacteriacae, 1 sample for coagulase-positive staphylococci and 2 samples with high total viable count at 30°C that did not comply with the national legislative. The analysis of fermented milk products and cheese samples confirmed the need for immediate corective measures and subsequently, improved sanitation procedures. The testing detected 9 samples of

  18. Practice Parameter for the Assessment and Treatment of Children and Adolescents with Reactive Attachment Disorder of Infancy and Early Childhood

    Science.gov (United States)

    Journal of the American Academy of Child and Adolescent Psychiatry, 2005

    2005-01-01

    This parameter reviews the current status of reactive attachment disorder with regard to assessment and treatment. Attachment is a central component of social and emotional development in early childhood, and disordered attachment is defined by specific patterns of abnormal social behavior in the context of "pathogenic care." Clinically relevant…

  19. Correlation and assessment of structural airplane crash data with flight parameters at impact

    Science.gov (United States)

    Carden, H. D.

    1982-01-01

    Crash deceleration pulse data from a crash dynamics program on general aviation airplanes and from transport crash data were analyzed. Structural airplane crash data and flight parameters at impact were correlated. Uncoupled equations for the normal and longitudinal floor impulses in the cabin area of the airplane were derived, and analytical expressions for structural crushing during impact and horizontal slide out were also determined. Agreement was found between experimental and analytical data for general aviation and transport airplanes over a relatively wide range of impact parameter. Two possible applications of the impulse data are presented: a postcrash evaluation of crash test parameters and an assumed crash scenario.

  20. Customer satisfaction survey to improve the European cystic fibrosis external quality assessment scheme.

    Science.gov (United States)

    Berwouts, Sarah; Dequeker, Elisabeth

    2011-08-01

    The Cystic Fibrosis European Network, coordinated from within the Katholieke Universiteit Leuven, is the provider of the European cystic fibrosis external quality assessment (EQA) scheme. The network aimed to seek feedback from laboratories that participated in the cystic fibrosis scheme in order to improve services offered. In this study we analysed responses to an on-line customer satisfaction survey conducted between September and November 2009. The survey was sent to 213 laboratories that participated in the cystic fibrosis EQA scheme of 2008; 69 laboratories (32%) responded. Scores for importance and satisfaction were obtained from a five-point Likert scale for 24 attributes. A score of one corresponded to very dissatisfied/very unimportant and five corresponded to very satisfied/very important. Means were calculated and placed in a two-dimensional grid (importance-satisfaction analysis). Means were subtracted from each other to obtain gap values (gap-analysis). No attribute had a mean score below 3.63. The overall mean of satisfaction was 4.35. Opportunities for improvement enclosed clarity, usefulness and completeness of the general report and individual comments, and user-friendliness of the electronic datasheet. This type of customer satisfaction survey was a valuable instrument to identify opportunities to improve the cystic fibrosis EQA scheme. It should be conducted on a regular basis to reveal new opportunities in the future and to assess effectiveness of actions taken. Moreover, it could be a model for other EQA providers seeking feedback from participants. Overall, the customer satisfaction survey provided a powerful quality of care improvement tool.

  1. Validation of the Spanish Translation of the Patient Assessment of Chronic Illness Care (PACIC Survey

    Directory of Open Access Journals (Sweden)

    Abraham Aragones, MD, MSCI

    2008-10-01

    Full Text Available IntroductionThe Patient Assessment of Chronic Illness Care (PACIC survey is a patient-centered instrument for evaluating the quality and patient-centeredness of chronic illness care received according to the Chronic Care Model paradigm. This study validates the Spanish translation of the PACIC in an urban, Spanish-speaking population.MethodsOne hundred Spanish-speaking patients with diabetes completed the translated PACIC and sociodemographic and cultural questionnaires. Test-retest reliability was assessed in a subset of 20 patients who completed the questionnaire 2 to 4 months later. Internal consistency was evaluated with Cronbach α. PACIC score and subscale associations with sociodemographic characteristics were examined.ResultsTest-retest reliability for the overall translated PACIC scale was 0.77. Scores were not associated with patient sociodemographic characteristics, including age, country of birth, years living in the United States, or education level (P >.05.ConclusionThe Spanish translation of the PACIC survey demonstrated high reliability, internal consistency, and test-retest reliability. Scores showed no association with sociodemographic or cultural characteristics. The Spanish version can reliably be used to assess care delivered according to the Chronic Care Model in a heterogeneous Spanish-speaking population.

  2. The Laboratory Course Assessment Survey: A Tool to Measure Three Dimensions of Research-Course Design.

    Science.gov (United States)

    Corwin, Lisa A; Runyon, Christopher; Robinson, Aspen; Dolan, Erin L

    2015-01-01

    Course-based undergraduate research experiences (CUREs) are increasingly being offered as scalable ways to involve undergraduates in research. Yet few if any design features that make CUREs effective have been identified. We developed a 17-item survey instrument, the Laboratory Course Assessment Survey (LCAS), that measures students' perceptions of three design features of biology lab courses: 1) collaboration, 2) discovery and relevance, and 3) iteration. We assessed the psychometric properties of the LCAS using established methods for instrument design and validation. We also assessed the ability of the LCAS to differentiate between CUREs and traditional laboratory courses, and found that the discovery and relevance and iteration scales differentiated between these groups. Our results indicate that the LCAS is suited for characterizing and comparing undergraduate biology lab courses and should be useful for determining the relative importance of the three design features for achieving student outcomes. © 2015 L. A. Corwin et al. CBE—Life Sciences Education © 2015 The American Society for Cell Biology. This article is distributed by The American Society for Cell Biology under license from the author(s). It is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).

  3. Assessment of surgical competence in North American graduate periodontics programs: a survey of current practices.

    Science.gov (United States)

    Ghiabi, Edmond; Taylor, K Lynn

    2010-08-01

    This cross-sectional study was designed to document the methods utilized by North American graduate periodontics programs in assessing their residents' surgical skills. A survey of clinical skills assessment was mailed to directors of all fifty-eight graduate periodontics programs in Canada and the United States. Thirty-four programs (59 percent) responded. The data collected were analyzed using SPSS version 15.0. The results demonstrate that the most common practice for providing feedback and documenting residents' surgical skills in the programs surveyed was daily one-on-one verbal feedback given by an instructor. The next two most commonly reported methods were a standard checklist developed at program level and a combination of a checklist and verbal comments. The majority of the programs reported that the instructors met collectively once per term to evaluate the residents' progress. The results suggest that graduate periodontics programs provide their residents frequent opportunities for daily practice with verbal feedback from instructors. However, assessment strategies identified in other health professions as beneficial in fostering the integration of clinical skills practices are not employed.

  4. Practice parameter for the assessment and treatment of children and adolescents with eating disorders.

    Science.gov (United States)

    Lock, James; La Via, Maria C

    2015-05-01

    This Practice Parameter reviews evidence-based practices for the evaluation and treatment of eating disorders in children and adolescents. Where empirical support is limited, clinical consensus opinion is used to supplement systematic data review. The Parameter focuses on the phenomenology of eating disorders, comorbidity of eating disorders with other psychiatric and medical disorders, and treatment in children and adolescents. Because the database related to eating disorders in younger patients is limited, relevant literature drawn from adult studies is included in the discussion.

  5. Cole Parameter Estimation from the Modulus of the Electrical Bioimpeadance for Assessment of Body Composition. A Full Spectroscopy Approach.

    Directory of Open Access Journals (Sweden)

    Ruben Buendia

    2011-10-01

    Full Text Available Activities around applications of Electrical Bioimpedance Spectroscopy (EBIS have proliferated in the past decade significantly. Most of these activities have been focused in the analysis of the EBIS measurements, which eventually might enable novel applications. In Body Composition Assessment (BCA the most common analysis approach currently used in EBIS is based on the Cole function, which most often requires curve fitting. One of the most implemented approaches for obtaining the Cole parameters is performed in the impedance plane through the geometrical properties that the Cole function exhibit in such domain as depressed semi-circle. To fit the measured impedance data to a semi-circle in the impedance plane, obtaining the Cole parameters in an indirect and sequential manner has several drawbacks. Applying a Non-Linear Least Square (NLLS iterative fitting on the spectroscopy measurement, obtains the Cole parameters considering the frequency information contained in the measurement. In this work, from experimental total right side EBIS measurements, the BCA parameters have been obtained to assess the amount and distribution of whole body fluids. The values for the BCA parameters have been obtained using values for the Cole parameters estimated with both approaches: circular fitting on the impedance plane and NLLS impedance-only fitting. The comparison of the values obtained for the BCA parameters with both methods confirms that the NLLS impedance-only is an effective alternative as Cole parameter estimation method in BCA from EBIS measurements. Using the modulus of the Cole function as the model for the fitting would eliminate the need for performing a phase detection in the acquisition process, simplifying the hardware specifications of the measurement instrumentation when implementing a bioimpedance spectrometer.doi:10.5617/jeb.197 J Electr Bioimp, vol. 2, pp. 72-78, 2011

  6. U.S. Geological Survey 2010 Petroleum Resource Assessment of the National Petroleum Reserve in Alaska (NPRA): GIS Play Maps

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The 2010 updated assessment of NPRA evaluated each of the 24 plays based on the availability of new geologic data available from exploration activities and...

  7. Perceptions and use of passive intervertebral motion assessment of the spine: a survey among physiotherapists specializing in manual therapy.

    NARCIS (Netherlands)

    Trijffel, E. van; Oostendorp, R.A.B.; Lindeboom, R.; Bossuyt, P.M.; Lucas, C.

    2009-01-01

    Manual therapists commonly use passive intervertebral motion (PIVM) assessment within physical examination. Data describing the use and interpretation of this manual diagnostic procedure, as well as therapists' perception of related importance and confidence, are lacking. A survey was conducted

  8. Perceptions and use of passive intervertebral motion assessment of the spine: A survey among physiotherapists specializing in manual therapy

    NARCIS (Netherlands)

    E. van Trijffel; R.A.B. Oostendorp; R. Lindeboom; P.M.M. Bossuyt; C. Lucas

    2009-01-01

    Manual therapists commonly use passive intervertebral motion (PIVM) assessment within physical examination. Data describing the use and interpretation of this manual diagnostic procedure, as well as therapists' perception of related importance and confidence. are lacking. A survey was conducted amon

  9. Perceptions and use of passive intervertebral motion assessment of the spine: a survey among physiotherapists specializing in manual therapy.

    NARCIS (Netherlands)

    Trijffel, E. van; Oostendorp, R.A.B.; Lindeboom, R.; Bossuyt, P.M.; Lucas, C.

    2009-01-01

    Manual therapists commonly use passive intervertebral motion (PIVM) assessment within physical examination. Data describing the use and interpretation of this manual diagnostic procedure, as well as therapists' perception of related importance and confidence, are lacking. A survey was conducted amon

  10. [Assessment of cancer RCP meetings in Rhône-Alpes: a survey on the ground].

    Science.gov (United States)

    Descotes, J-L; Guillem, P; Bondil, P; Colombel, M; Chabloz, C

    2010-10-01

    The results of a local survey sent to urologists, oncologists and radiotherapeutists working in Rhône-Alpes have been reported to assess the value of multidisciplinary oncological meetings (RCP) in Urology. The results of this short study have been analyzed and compared to the national results published by the Inspection Générale des Affaires Sociales report. Meanwhile, we have created a professional electronic directory collecting all RCP of Rhône-Alpes, which will be accessible soon. Copyright © 2010. Published by Elsevier Masson SAS.

  11. Clinical parameters for assessment of udder health in Danish dairy herds.

    Science.gov (United States)

    Houe, H; Vaarst, M; Enevoldsen, C

    2002-01-01

    This study examined the possibilities of using clinical parameters related to the bovine udder for characterisation of udder health. Five clinicians performed systematic clinical recordings of udder health at 3 visits to 4 dairy herds. Several of the clinical parameters were scored on an ordinal scale. The agreement between clinicians was compared using kappa statistics. Factor analysis was used to identify udder types. The clinical evaluations showed substantial variation among clinicians. Parameters that were not directly related to pathological conditions showed the highest variation e.g. length of the claws, teat shape and hardness of the udder parenchyma. On the other hand, evaluation of pathological parameters such as nodes in the udder, skin lesions and oedema showed good agreement between clinicians. Udder types identified by means of factor analysis were found to be suitable for characterisation of udder health. Especially one factor related to dry quarters and udder asymmetry showed a more consistent relationship to milk yield than traditionally applied udder health parameters such as treatment rate and cell count. It is concluded that there is a considerable need for increased efforts among clinicians in order to standardise clinical recordings. It is further concluded that certain combinations of extended clinical recordings have significant perspectives for future characterisation of udder health.

  12. Assessing the relative importance of parameter and forcing uncertainty and their interactions in conceptual hydrological model simulations

    Science.gov (United States)

    Mockler, E. M.; Chun, K. P.; Sapriza-Azuri, G.; Bruen, M.; Wheater, H. S.

    2016-11-01

    Predictions of river flow dynamics provide vital information for many aspects of water management including water resource planning, climate adaptation, and flood and drought assessments. Many of the subjective choices that modellers make including model and criteria selection can have a significant impact on the magnitude and distribution of the output uncertainty. Hydrological modellers are tasked with understanding and minimising the uncertainty surrounding streamflow predictions before communicating the overall uncertainty to decision makers. Parameter uncertainty in conceptual rainfall-runoff models has been widely investigated, and model structural uncertainty and forcing data have been receiving increasing attention. This study aimed to assess uncertainties in streamflow predictions due to forcing data and the identification of behavioural parameter sets in 31 Irish catchments. By combining stochastic rainfall ensembles and multiple parameter sets for three conceptual rainfall-runoff models, an analysis of variance model was used to decompose the total uncertainty in streamflow simulations into contributions from (i) forcing data, (ii) identification of model parameters and (iii) interactions between the two. The analysis illustrates that, for our subjective choices, hydrological model selection had a greater contribution to overall uncertainty, while performance criteria selection influenced the relative intra-annual uncertainties in streamflow predictions. Uncertainties in streamflow predictions due to the method of determining parameters were relatively lower for wetter catchments, and more evenly distributed throughout the year when the Nash-Sutcliffe Efficiency of logarithmic values of flow (lnNSE) was the evaluation criterion.

  13. Self-assessed efficacy of a clinical musculoskeletal anatomy workshop: A preliminary survey.

    Science.gov (United States)

    Saavedra, Miguel Ángel; Navarro-Zarza, José E; Alvarez-Nemegyei, José; Canoso, Juan J; Kalish, Robert A; Villaseñor-Ovies, Pablo; Hernández-Díaz, Cristina

    2015-01-01

    To survey the efficacy of a practical workshop on clinical musculoskeletal anatomy held in five American countries. A self-assessment competence questionnaire sent to participants 1-3 months after the workshop. Results were compared to the results of a practical, instructor-assessed, pre-workshop test. The response rate of participants was 76.4%. The overall, self-assessed competence score for anatomical items that had been included in the pre-test was 76.9 (scale 0-100) as compared to an overall score of 48.1 in the practical, pre-workshop test (p<0.001). For items that were addressed in the workshop, but not included in the pre-test, self-assessed competence was rated at 62.9. Differences in anatomical knowledge between individuals from different countries and professional groups noted in the practical pre-test were no longer present in the post-test self-assessment. From this preliminary data and supporting evidence from the literature we believe that our anatomy workshop provides an effective didactic tool for increasing competence in musculoskeletal anatomy. Copyright © 2014 Elsevier España, S.L.U. All rights reserved.

  14. Leadership development in a professional medical society using 360-degree survey feedback to assess emotional intelligence.

    Science.gov (United States)

    Gregory, Paul J; Robbins, Benjamin; Schwaitzberg, Steven D; Harmon, Larry

    2016-12-30

    The current research evaluated the potential utility of a 360-degree survey feedback program for measuring leadership quality in potential committee leaders of a professional medical association (PMA). Emotional intelligence as measured by the extent to which self-other agreement existed in the 360-degree survey ratings was explored as a key predictor of leadership quality in the potential leaders. A non-experimental correlational survey design was implemented to assess the variation in leadership quality scores across the sample of potential leaders. A total of 63 of 86 (76%) of those invited to participate did so. All potential leaders received feedback from PMA Leadership, PMA Colleagues, and PMA Staff and were asked to complete self-ratings regarding their behavior. Analyses of variance revealed a consistent pattern of results as Under-Estimators and Accurate Estimators-Favorable were rated significantly higher than Over-Estimators in several leadership behaviors. Emotional intelligence as conceptualized in this study was positively related to overall performance ratings of potential leaders. The ever-increasing roles and potential responsibilities for PMAs suggest that these organizations should consider multisource performance reviews as these potential future PMA executives rise through their organizations to assume leadership positions with profound potential impact on healthcare. The current findings support the notion that potential leaders who demonstrated a humble pattern or an accurate pattern of self-rating scored significantly higher in their leadership, teamwork, and interpersonal/communication skills than those with an aggrandizing self-rating.

  15. Integrated geophysical surveys to assess the structural conditions of a karstic cave of archaeological importance

    Directory of Open Access Journals (Sweden)

    G. Leucci

    2005-01-01

    Full Text Available An integrated geophysical survey using both the electrical resistivity tomography (ERT and ground-penetrating radar (GPR methods was undertaken over a cave of great archaeological interest in southern Italy. The survey was performed to assess the stability of the carbonate rock roof of the cave. A geophysical survey was preferred to boreholes and geotechnical tests, in order to avoid the risk of mass movements. The interpretation of integrated data from ERT and GPR resulted in an evaluation of some of the electromagnetic (EM characteristics (such as the EM wave velocity and the detection of discontinuities (fractures in the carbonate rock. It is well known that rock fractures constitute a serious problem in cave maintenance, and progressive cracking within the bed rock is considered to be one of the main causes of collapse. An analysis of the back-scattered energy was also required for the GPR data interpretation. Cracks within the bedrock were detected to a depth of about 2 m by using GPR, which allowed for the identification of the loosened zone around the cave.

  16. Measuring stigma among abortion providers: assessing the Abortion Provider Stigma Survey instrument.

    Science.gov (United States)

    Martin, Lisa A; Debbink, Michelle; Hassinger, Jane; Youatt, Emily; Eagen-Torkko, Meghan; Harris, Lisa H

    2014-01-01

    We explored the psychometric properties of 15 survey questions that assessed abortion providers' perceptions of stigma and its impact on providers' professional and personal lives referred to as the Abortion Provider Stigma Survey (APSS). We administered the survey to a sample of abortion providers recruited for the Providers' Share Workshop (N = 55). We then completed analyses using Stata SE/12.0. Exploratory factor analysis, which resulted in 13 retained items and identified three subscales: disclosure management, resistance and resilience, and discrimination. Stigma was salient in abortion provider's lives: they identified difficulties surrounding disclosure (66%) and felt unappreciated by society (89%). Simultaneously, workers felt they made a positive contribution to society (92%) and took pride in their work (98%). Paired t-test analyses of the pre- and post-Workshop APSS scores showed no changes in the total score. However, the Disclosure Management subscale scores were significantly lower (indicating decreased stigma) for two subgroups of participants: those over the age of 30 and those with children. This analysis is a promising first step in the development of a quantitative tool for capturing abortion providers' experiences of and responses to pervasive abortion stigma.

  17. Breast tumor oxygenation in response to carbogen intervention assessed simultaneously by three oxygen-sensitive parameters

    Science.gov (United States)

    Gu, Yueqing; Bourke, Vincent; Kim, Jae Gwan; Xia, Mengna; Constantinescu, Anca; Mason, Ralph P.; Liu, Hanli

    2003-07-01

    Three oxygen-sensitive parameters (arterial hemoglobin oxygen saturation SaO2, tumor vascular oxygenated hemoglobin concentration [HbO2], and tumor oxygen tension pO2) were measured simultaneously by three different optical techniques (pulse oximeter, near infrared spectroscopy, and FOXY) to evaluate dynamic responses of breast tumors to carbogen (5% CO2 and 95% O2) intervention. All three parameters displayed similar trends in dynamic response to carbogen challenge, but with different response times. These response times were quantified by the time constants of the exponential fitting curves, revealing the immediate and the fastest response from the arterial SaO2, followed by changes in global tumor vascular [HbO2], and delayed responses for pO2. The consistency of the three oxygen-sensitive parameters demonstrated the ability of NIRS to monitor therapeutic interventions for rat breast tumors in-vivo in real time.

  18. Assessing composition and structure of soft biphasic media from Kelvin-Voigt fractional derivative model parameters

    Science.gov (United States)

    Zhang, Hongmei; Wang, Yue; Fatemi, Mostafa; Insana, Michael F.

    2017-03-01

    Kelvin-Voigt fractional derivative (KVFD) model parameters have been used to describe viscoelastic properties of soft tissues. However, translating model parameters into a concise set of intrinsic mechanical properties related to tissue composition and structure remains challenging. This paper begins by exploring these relationships using a biphasic emulsion materials with known composition. Mechanical properties are measured by analyzing data from two indentation techniques—ramp-stress relaxation and load-unload hysteresis tests. Material composition is predictably correlated with viscoelastic model parameters. Model parameters estimated from the tests reveal that elastic modulus E 0 closely approximates the shear modulus for pure gelatin. Fractional-order parameter α and time constant τ vary monotonically with the volume fraction of the material’s fluid component. α characterizes medium fluidity and the rate of energy dissipation, and τ is a viscous time constant. Numerical simulations suggest that the viscous coefficient η is proportional to the energy lost during quasi-static force-displacement cycles, E A . The slope of E A versus η is determined by α and the applied indentation ramp time T r. Experimental measurements from phantom and ex vivo liver data show close agreement with theoretical predictions of the η -{{E}A} relation. The relative error is less than 20% for emulsions 22% for liver. We find that KVFD model parameters form a concise features space for biphasic medium characterization that described time-varying mechanical properties. The experimental work was carried out at the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. Methodological development, including numerical simulation and all data analysis, were carried out at the school of Life Science and Technology, Xi’an JiaoTong University, 710049, China.

  19. Experienced drug users assess the relative harms and benefits of drugs: a web-based survey.

    Science.gov (United States)

    Carhart-Harris, Robin Lester; Nutt, David John

    2013-01-01

    A web-based survey was used to consult the opinions of experienced drug users on matters related to drug harms. We identified a rare sample of 93 drug users with personal experience with 11 different illicit drugs that are widely used in the UK. Asked to assess the relative harms of these drugs, they ranked alcohol and tobacco as the most harmful, and three "Class A" drugs (MDMA, LSD, and psilocybin) and one class B (cannabis) were ranked as the four least harmful drugs. When asked to assess the relative potential for benefit of the 11 drugs, MDMA, LSD, psilocybin, and cannabis were ranked in the top four; and when asked why these drugs are beneficial, rather than simply report hedonic properties, they referred to potential therapeutic applications (e.g., as tools to assist psychotherapy). These results provide a useful insight into the opinions of experienced drug users on a subject about which they have a rare and intimate knowledge.

  20. Uncertainty quantification of seabed parameters for large data volumes along survey tracks with a tempered particle filter

    Science.gov (United States)

    Dettmer, J.; Quijano, J. E.; Dosso, S. E.; Holland, C. W.; Mandolesi, E.

    2016-12-01

    Geophysical seabed properties are important for the detection and classification of unexploded ordnance. However, current surveying methods such as vertical seismic profiling, coring, or inversion are of limited use when surveying large areas with high spatial sampling density. We consider surveys based on a source and receiver array towed by an autonomous vehicle which produce large volumes of seabed reflectivity data that contain unprecedented and detailed seabed information. The data are analyzed with a particle filter, which requires efficient reflection-coefficient computation, efficient inversion algorithms and efficient use of computer resources. The filter quantifies information content of multiple sequential data sets by considering results from previous data along the survey track to inform the importance sampling at the current point. Challenges arise from environmental changes along the track where the number of sediment layers and their properties change. This is addressed by a trans-dimensional model in the filter which allows layering complexity to change along a track. Efficiency is improved by likelihood tempering of various particle subsets and including exchange moves (parallel tempering). The filter is implemented on a hybrid computer that combines central processing units (CPUs) and graphics processing units (GPUs) to exploit three levels of parallelism: (1) fine-grained parallel computation of spherical reflection coefficients with a GPU implementation of Levin integration; (2) updating particles by concurrent CPU processes which exchange information using automatic load balancing (coarse grained parallelism); (3) overlapping CPU-GPU communication (a major bottleneck) with GPU computation by staggering CPU access to the multiple GPUs. The algorithm is applied to spherical reflection coefficients for data sets along a 14-km track on the Malta Plateau, Mediterranean Sea. We demonstrate substantial efficiency gains over previous methods. [This

  1. Assessment of Physico-Chemical Parameters of Soil of Muthannan Kulam Wetland, Coimbatore, Tamil Nadu, India

    Directory of Open Access Journals (Sweden)

    K Manimegalai

    2014-09-01

    Full Text Available Soil serves as a more reliable index for productivity than water qualities. The productivity of any pond depends largely on the quality of bottom soil that is “store house of nutrients.” The present paper deals with the study of physicochemical parameters like organic carbon, pH, Electrical conductivity, Nitrogen, Phosphorus, Potassium of soil from Muthannan Kulam,Coimbatore (March 2013- May 2013. Analysis for the above parameters indicated contamination of the soil quality due to some anthropogenic activities.

  2. Locatable mineral assessment tracts for the U.S. Geological Survey Sagebrush Mineral-Resource Assessment Project

    Science.gov (United States)

    San Juan, Carma A.; Horton, John D.; Parks, Heather L.; Mihalasky, Mark J.; Anderson, Eric D.; Benson, Mary Ellen; Box, Stephen E.; Cossette, Pamela M.; Denning, Paul D.; Giles, Stuart A.; Hall, Susan M.; Hayes, Timothy S.; Hearn, Carter B.; Hofstra, Albert H.; John, David A.; Ludington, Stephen; Lund, Karen; Mauk, Jeffrey L.; Robinson, Jr., Gilpin R.; Rockwell, Barnaby W.; Rytuba, James J.; Smith, Steven M.; Stillings, Lisa; Van Gosen, Bradley S.; Vikre, Peter G.; Wallis, John C.; Wilson, Anna B.; Zientek, Michael L.; Zurcher, Lukas

    2016-01-01

    Southwestern and South-Central Wyoming SFAs, as well as additional areas in Nevada (termed the “Nevada additions”) proposed by the State of Nevada. Landscape-scale conservation efforts by the BLM, U.S. Fish and Wildlife Service (FWS), the U.S. Forest Service (USFS), State agencies, private land owners, and other partners are striving to conserve the breeding sagebrush habitat for the greater sage-grouse across these areas.Accompanying report (Chapter A): Day, W.C., Hammarstrom, J.M., Zientek, M.L., and Frost, T.P., eds., 2016, Overview with methods and procedures of the U.S. Geological Survey mineral-resource assessment of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming: U.S. Geological Survey Scientific Investigations Report 2016–5089, 211 p., http://dx.doi.org/10.3133/sir20165089.To quickly view the data, please access the ScienceBase interactive map viewer via the "Map" link in the upper-right corner of this page. Additional data functionality is described within the "Data_access_README.pdf" file that can be viewed or downloaded from the Attached Files area below.

  3. Assessing attitudes toward farm animal welfare: a national survey of animal science faculty members.

    Science.gov (United States)

    Heleski, C R; Mertig, A G; Zanella, A J

    2004-09-01

    A survey to measure attitudes toward farm animal welfare was developed. We targeted animal science faculty because of their influence on animal production in the United States. We initially interviewed 34 faculty members from a large Midwestern public university to assist with questionnaire development. After our written survey was developed, we pilot-tested our questionnaire at this same university. Thereafter, we sent an e-mail advance notice, first survey, and follow-up survey/thank-you to the national population of animal science faculty members. With an n = 446 (response rate = 45%), we observed the following: 51% (for layer birds), 58% (for meat birds), 66% (for swine), 84% (for dairy), 86% (for sheep), and 87% (for beef) of our respondents agreed that the predominant methods used to produce various types of animal products provided appropriate levels of animal welfare. Our findings showed that greater than 90% of respondents support general principles of animal welfare, such as keeping animals free from unnecessary fear and distress. However, specific practices that have been shown to elicit distress (e.g., castration without anesthetic) were deemed a concern by only 32% of the respondents. Various industry practices/outcomes were assessed for level of concern and varied from a high of 83% of respondents agreeing that flooring effects on lameness in intensively farmed animals are a concern, to a low of 16% agreeing that early weaning in pigs is a concern. Summed attitude scores showed significant relationships with the demographic variables of gender (P farm animal welfare issues. Gaining an awareness of various stakeholders' attitudes (e.g., animal scientists, veterinarians, producers, and consumers) toward farm animal welfare will assist animal welfare scientists in knowing which research topics to emphasize and, perhaps, where critical gaps in accessibility of knowledge exist.

  4. BASELINE PARAMETER UPDATE FOR HUMAN HEALTH INPUT AND TRANSFER FACTORS FOR RADIOLOGICAL PERFORMANCE ASSESSMENTS AT THE SAVANNAH RIVER SITE

    Energy Technology Data Exchange (ETDEWEB)

    Coffield, T; Patricia Lee, P

    2007-01-31

    The purpose of this report is to update parameters utilized in Human Health Exposure calculations and Bioaccumulation Transfer Factors utilized at SRS for Performance Assessment modeling. The reason for the update is to utilize more recent information issued, validate information currently used and correct minor inconsistencies between modeling efforts performed in SRS contiguous areas of the heavy industrialized central site usage areas called the General Separations Area (GSA). SRS parameters utilized were compared to a number of other DOE facilities and generic national/global references to establish relevance of the parameters selected and/or verify the regional differences of the southeast USA. The parameters selected were specifically chosen to be expected values along with identifying a range for these values versus the overly conservative specification of parameters for estimating an annual dose to the maximum exposed individual (MEI). The end uses are to establish a standardized source for these parameters that is up to date with existing data and maintain it via review of any future issued national references to evaluate the need for changes as new information is released. These reviews are to be added to this document by revision.

  5. Reliability of a patient survey assessing "Short Form Injury Questionnaire 7" in Iran

    Institute of Scientific and Technical Information of China (English)

    Mahdi Sharif-Alhoseini; Soheil Saadat; Afarin Rahimi-Movaghar; Abbas Motevalian; Masoumeh Amin-Esmaeili; Mitra Hefazi; Vafa Rahimi-Movaghar

    2012-01-01

    Objective: Injury is a major cause of morbidity and mortality in the world.The assessment of patterns and severity of injury in high-risk groups is crucial for planning and service development.On a large scale national household survey,we estimated the annual incidence and the patterns of injury,the demographics of the injured people,as well as the service use for all injuries in Iran.The current study aims at assessing the reliability of the questionnaire before carrying out a national survey.Methods: In a pilot study using cluster random sampling approach,73 people were interviewed.The interviewers asked the participants to report all injuries occurred in them and the care provided during the previous 12 months,based on "Short Form Injury Questionnaire 7".About two weeks later,the interview was repeated by another interviewer.Results: In our test-retest reliability,Kappa score was good for three and moderate for four questions.The question on the injured organ had the highest test-retest reliability with a Kappa score of 0.84.Conclusions:The reliability of the questionnaire and the procedure of questioning are confirmed.The questionnire is proper for utilization in large national surveies.

  6. Assessment of the sleep parameters in patients with obstructive sleep apnea syndrome with a

    Directory of Open Access Journals (Sweden)

    Özlem Abakay

    2013-06-01

    Full Text Available Objective: In this study, traffic accident with a history ofobstructive sleep apnea syndrome (OSAS in patientswith polysomnographic parameters was investigated.Methods: A total of 77 OSAS patients were included inthe study. All-night polysomnographic recordings obtainedfrom patients with enuresis parameters and thepresence of traffic accidents recorded in standard form.Results: The mean age of patients was 45.15 ± 11.53years. 53% of the patients were male and 47% female.The mean apnea hypopnea index (AHI in patients was13.54 events/h. History of traffic accidents was found in12% patients. Apnea hypopnea index, supine AHI, arousalindex and oxygen desaturation index were found significantlydifferent parameters between history of trafficaccidents group and non-history of traffic accidents group(p <0.05.Conclusion: In this study, patients with OSAS severity ofthe disease with a history of traffic accidents were associatedthe relationship between the parameters. This relationshipwith the severity of the disease might be due tothe negative effects on attention. J Clin Exp Invest 2013;4 (2: 204-207Key words: OSAS, traffic accident, AHI

  7. Nuchal Skinfold Thickness : A Novel Parameter for Assessment of Body Composition in Childhood Craniopharyngioma

    NARCIS (Netherlands)

    Sterkenburg, Anthe S.; Hoffmann, Anika; Reichel, Julia; Lohle, Kristin; Eveslage, Maria; Warmuth-Metz, Monika; Mueller, Hermann L.

    2016-01-01

    Context: Hypothalamic obesity, cardiovascular disease (CVD), and relapse/progression have a major impact on prognosis in childhood-onset craniopharyngioma (CP). We analyzed nuchal skinfold thickness (NST) on magnetic resonance imaging performed for follow-up monitoring as a novel parameter for body

  8. Using GPS and GRACE data to assess Solid Earth elastic parameters at regional scale

    DEFF Research Database (Denmark)

    Barletta, Valentina Roberta; Borghi, A.; Aoudia, A.

    2012-01-01

    of the GPS stations. Remarkably, we find that the calculated uplift shows periodic behaviours with amplitudes that match those of the GPS stations, depending on the Earth model used and especially on the elastic parameters of the mantle. We tested this method over the region of the European Alps and we show...

  9. Nuchal Skinfold Thickness : A Novel Parameter for Assessment of Body Composition in Childhood Craniopharyngioma

    NARCIS (Netherlands)

    Sterkenburg, Anthe S.; Hoffmann, Anika; Reichel, Julia; Lohle, Kristin; Eveslage, Maria; Warmuth-Metz, Monika; Mueller, Hermann L.

    2016-01-01

    Context: Hypothalamic obesity, cardiovascular disease (CVD), and relapse/progression have a major impact on prognosis in childhood-onset craniopharyngioma (CP). We analyzed nuchal skinfold thickness (NST) on magnetic resonance imaging performed for follow-up monitoring as a novel parameter for body

  10. Estimating qualitative parameters for assessment of body balance in a simulated ambulatory setting

    NARCIS (Netherlands)

    Meulen, van Fokke B.; Reenalda, Jasper; Veltink, Peter H.

    2013-01-01

    Continuous daily-life monitoring of balance control of stroke survivors in an ambulatory setting, is essential for optimal guidance of rehabilitation. The purpose of this study is to demonstrate the relation between qualitative parameters of body balance while measuring in stroke patients in a simul

  11. Assessing FPAR Source and Parameter Optimization Scheme in Application of a Diagnostic Carbon Flux Model

    Energy Technology Data Exchange (ETDEWEB)

    Turner, D P; Ritts, W D; Wharton, S; Thomas, C; Monson, R; Black, T A

    2009-02-26

    The combination of satellite remote sensing and carbon cycle models provides an opportunity for regional to global scale monitoring of terrestrial gross primary production, ecosystem respiration, and net ecosystem production. FPAR (the fraction of photosynthetically active radiation absorbed by the plant canopy) is a critical input to diagnostic models, however little is known about the relative effectiveness of FPAR products from different satellite sensors nor about the sensitivity of flux estimates to different parameterization approaches. In this study, we used multiyear observations of carbon flux at four eddy covariance flux tower sites within the conifer biome to evaluate these factors. FPAR products from the MODIS and SeaWiFS sensors, and the effects of single site vs. cross-site parameter optimization were tested with the CFLUX model. The SeaWiFs FPAR product showed greater dynamic range across sites and resulted in slightly reduced flux estimation errors relative to the MODIS product when using cross-site optimization. With site-specific parameter optimization, the flux model was effective in capturing seasonal and interannual variation in the carbon fluxes at these sites. The cross-site prediction errors were lower when using parameters from a cross-site optimization compared to parameter sets from optimization at single sites. These results support the practice of multisite optimization within a biome for parameterization of diagnostic carbon flux models.

  12. Cole–Cole Parameter Characterization of Urea and Potassium for Improving Dialysis Treatment Assessment

    DEFF Research Database (Denmark)

    Jensen, Peter Damsgaard; Meaney, Paul M.; Epstien, Neil R.

    2012-01-01

    concentrations given the Cole–Cole parameters. This concentration monitoring technique would be performed directly on the dialysate eliminating contamination from blood, which could substantially obscure the data. We expect that, using the Maxwell–Fricke mixture law, we will be able to compute the constituent...

  13. Survey of self-assessed preparedness for clinical practice in one Croatian medical school

    Directory of Open Access Journals (Sweden)

    Jenkins Sarah M

    2009-07-01

    Full Text Available Abstract Background The Croatian higher education system is in the process of reforming its medical curricula to comply with European Union standards. We conducted a survey of students enrolled at the University of Zagreb (Croatia asking them to rate their perception of preparedness for clinical practice prior to initiation of the reform process. The purpose of the survey was to identify self-perceived deficiencies in education and to establish a reference point for the later assessment of ongoing educational reform. Findings One-hundred and forty seven (N = 147 graduates reported the levels of perceived preparedness on 30 items grouped into 8 educational domains. Main domains were: understanding science, practical skills/patient management, holistic care, prevention, interpersonal skills, confidence/coping skills, collaboration, and self-directed learning. For each item, graduates self assessed their preparedness on a scale ranging from 1 to 4, with 1 = "Very inadequate", 2 = "Somewhat inadequate", 3 = "Somewhat adequate", and 4 = "Very adequate". In 7 out of 8 domains the achieved median score was ≥ 3. Students expressed low confidence (defined when ≥ 25% of respondents supplied a rating for the survey question as: "very inadequate" or "somewhat inadequate" with interpersonal skills (discussing terminal disease, counseling distraught patients, balancing professional and personal life, and in performing certain basic semi-invasive or invasive procedures. Conclusion Zagreb medical graduates identified several deficiencies within educational domains required for standard clinical practice. Ongoing educational efforts need to be directed towards the correction of these deficiencies in order to achieve standards required by the European Union.

  14. Assessment of Rock Magnetic Parameters for Fly Ash Pollution Screening in Topsoil of the Deccan Trap Basalt Area, India

    Science.gov (United States)

    Blaha, U.; Basavaiah, N.; Das, P. K.; Deenadayalan, K.

    2012-04-01

    Rock magnetic parameters of highly magnetic topsoil of the Deccan Trap basalt area are evaluated for their suitability for efficient environmental magnetic pollution screening. Parameters, such as magnetic susceptibility (χ), frequency dependence of magnetic susceptibility (κ fd%), anhysteretic remanent magnetization (ARM), saturation isothermal remanent magnetization (SIRM), soft isothermal remanent magnetization (Soft IRM), as well as thermo-magnetic analysis (κ-T) are compared and assessed for best depiction of topsoil contamination due to ash deposition around the Nashik thermal power station (NTPS). Fifty-five topsoil samples, collected along north-south and west-east stretching transects of 24 km length, are the basis for evaluation of the specific ash distribution pattern around the plant and its adjacent ash pond. Similar decline of the magnetic signals with increasing distance from the point source is observed in the concentration dependent magnetic parameters and can be modeled. The magnetic grain size parameters instead reveal increasing trends with increasing distance. Verwey-transition and Hopkinson peak obtained from κ-T analyses demonstrate to be important parameters to prove fly ash accumulation in soils of basaltic origin. The importance of magnetic parameters for indirect tracing of pollutants, such as heavy metals, is shown by Pb, Zn and Cu data, revealing similar distribution pattern as obtained from the concentration dependent magnetic parameters. Confirmation of the presence of a very high amount of ash particles in the vicinity of the NTPS and a low number of particles in more distant areas is provided by scanning electron microscopy (SEM) on quantitatively extracted magnetic particles at 5.5 km and 11.9 km distance in eastern direction. The investigation demonstrates that the majority of the rock magnetic parameters has the potential to be successfully applied in environmental magnetic studies in areas with high magnetic background

  15. Neonatal nurses' perceptions of pain assessment and management in NICUs: a national survey.

    Science.gov (United States)

    Cong, Xiaomei; Delaney, Colleen; Vazquez, Victoria

    2013-10-01

    The purpose of this survey was to investigate neonatal nurses' perceptions of knowledge and practice in pain assessment and management. A convenience sample consisted of 237 neonatal nurses with a membership in National Association of Neonatal Nurses (NANN) and neonatal nurses in Connecticut who were not NANN members. A researcher-developed questionnaire, including 36 questions with Likert scale and 2 open-ended questions, was used. The nurses were knowledgeable, and about 50% felt that they received adequate training and continuing education on pain. Participants reported the use of pain assessment tools (81%) and felt confident in uses of pharmacologic (83%) and nonpharmacologic interventions (79%). More than half felt that the pain tool used in their unit was appropriate for neonates (65%) and was an accurate measure (60%). Fewer than half reported that pain was well managed (44%) and that their pain protocols were research evidence based (43%). Nurses' perceptions of well-managed pain were significantly correlated with training, use of appropriate and accurate pain tools, and clear and research-based protocols. Barriers to effective pain management emerged as resistance to change, lack of knowledge, perceived fear of side effects of pain medication and incorrect interpretation of pain signals, lack of time, and lack of trust in the pain assessment tools. Gaps exist in knowledge, evidence, and practice in neonatal assessment and management.

  16. National survey of Canadian occupational therapists' assessment and treatment of cognitive impairment post-stroke.

    Science.gov (United States)

    Korner-Bitensky, Nicol; Barrett-Bernstein, Sheila; Bibas, Gabrielle; Poulin, Valérie

    2011-08-01

    This study examined variations in management of cognitive impairment post-stroke among occupational therapists and factors associated with variations in practice. Canada-wide cross-sectional telephone survey. Clinicians' practices were examined using standard patient cases (vignettes). Acute care, inpatient rehabilitation and community-based sites providing stroke rehabilitation in all Canadian provinces. Occupational therapists (n=663) working in stroke rehabilitation as identified through provincial licensing bodies. Type and frequency of cognition-related problem identification, assessment and intervention use. Respectively, 69%, 83% and 31% of occupational therapists responding to the acute care, inpatient rehabilitation and community-based vignettes recognised cognition as a potential problem. Standardised assessment use was prevalent: 70% working in acute care, 77% in inpatient rehabilitation and 58% in community-based settings indicated using standardised assessments: 81%, 83% and 50%, respectively, indicated using general cognitive interventions. The Mini-Mental State Examination was often used incorrectly to monitor patient change. Executive function, a critical component of post-stroke assessment, was rarely addressed. Interventions were most often general (e.g. incorporated in activities of daily living) rather than specific (e.g. cueing, memory aids, computer-based retraining). © 2011 The Authors. Australian Occupational Therapy Journal © 2011 Occupational Therapy Australia.

  17. Specification of indoor climate design parameters at the assessment of moisture protective properties of enclosing structures

    OpenAIRE

    Kornienko Sergey Valer’evich

    2016-01-01

    Due to wide implementation of enveloping structures with increased heat-insulation properties in modern construction here appeared a necessity to assess their moisture conditions. Assessment of moisture conditions of enveloping structures is carried out according to maximum allowable moisture state basing on determining the surface of maximum damping. In relation to it the necessity of additional vapour barrier is checked using moisture balance equation. Though the change of indoor climate pa...

  18. Comparison of the Carbon System Parameters at the Global CO2 Survey Crossover Locations in the North and South Pacific Ocean, 1990-1996

    Energy Technology Data Exchange (ETDEWEB)

    Feely, Richard A [NOAA, Pacific Marine Environmental Laboratory (PMEL); Lamb, Marilyn F. [NOAA, Pacific Marine Environmental Laboratory (PMEL); Greeley, Dana J. [NOAA, Pacific Marine Environmental Laboratory (PMEL); Wanninkhof, Rik [NOAA, Atlantic Oceanographic and Meteorological Laboratory (AOML)

    1999-10-01

    As a collaborative program to measure global ocean carbon inventories and provide estimates of the anthropogenic carbon dioxide (C02) uptake by the oceans. the National Oceanic and Atmospheric Administration and the U.S. Department of Energy have sponsored the collection of ocean carbon measurements as part of the World Ocean Circulation Experiment and Ocean-Atmosphere Carbon Exchange Study cruises. The cruises discussed here occurred in the North and South Pacific from 1990 through 1996. The carbon parameters from these 30 crossover locations have been compared to ensure that a consistent global data set emerges from the survey cruises. !'he results indicate that for dissolved inorganic carbon. fugacity of C02• and pH. the a~:,rreements at most crossover locations are well within the design specifications for the global CO) survey: whereas. in the case of total alkaliniry. the agreement between crossover locations is not as close.

  19. Practice Parameter for the Assessment and Treatment of Children and Adolescents With Reactive Attachment Disorder and Disinhibited Social Engagement Disorder.

    Science.gov (United States)

    Zeanah, Charles H; Chesher, Tessa; Boris, Neil W

    2016-11-01

    This Practice Parameter is a revision of a previous Parameter addressing reactive attachment disorder that was published in 2005. It reviews the current status of reactive attachment disorder (RAD) and disinhibited social engagement disorder (DESD) with regard to assessment and treatment. Attachment is a central component of social and emotional development in early childhood, and disordered attachment is defined by specific patterns of abnormal social behavior in the context of "insufficient care" or social neglect. Assessment requires direct observation of the child in the context of his or her relationships with primary caregivers. Treatment requires establishing an attachment relationship for the child when none exists and ameliorating disturbed social relatedness with non-caregivers when evident.

  20. Predictive microbiology models vs. modeling microbial growth within Listeria monocytogenes risk assessment: what parameters matter and why.

    Science.gov (United States)

    Pouillot, Régis; Lubran, Meryl B

    2011-06-01

    Predictive microbiology models are essential tools to model bacterial growth in quantitative microbial risk assessments. Various predictive microbiology models and sets of parameters are available: it is of interest to understand the consequences of the choice of the growth model on the risk assessment outputs. Thus, an exercise was conducted to explore the impact of the use of several published models to predict Listeria monocytogenes growth during food storage in a product that permits growth. Results underline a gap between the most studied factors in predictive microbiology modeling (lag, growth rate) and the most influential parameters on the estimated risk of listeriosis in this scenario (maximum population density, bacterial competition). The mathematical properties of an exponential dose-response model for Listeria accounts for the fact that the mean number of bacteria per serving and, as a consequence, the highest achievable concentrations in the product under study, has a strong influence on the estimated expected number of listeriosis cases in this context.

  1. Nuclide documentation. Element specific parameter values used in the biospheric models of the safety assessments SR 97 and SAFE

    Energy Technology Data Exchange (ETDEWEB)

    Karlsson, Sara; Bergstroem, Ulla [Studsvik Eco and Safety AB, Nykoeping (Sweden)

    2002-05-01

    In this report the element and nuclide specific parameter values used in the biospheric models of the safety assessments SR 97 and SAFE are presented. The references used are presented and where necessary the process of estimation of data is described. The parameters treated in this report are distribution coefficients in soil, organic soil and suspended matter in freshwater and brackish water, root uptake factors for pasturage, cereals, root crops and vegetables, bioaccumulation factors for freshwater fish, brackish water fish, freshwater invertebrates and marine water plants, transfer coefficients for transfer to milk and meat, translocation factors and dose coefficients for external exposure, ingestion (age-dependent values) and inhalation (age-dependent values). The radionuclides treated are those which could be of interest in the two safety assessments. Physical data such as half-lives and type of decay are also presented.

  2. The use of sequential organ failure assessment parameters in an awake porcine model of severe Staphylococcus aureus sepsis

    DEFF Research Database (Denmark)

    Sørensen, Karen E.; Nielsen, Ole L.; Birck, Malene M.;

    2012-01-01

    and analysed for SOFA parameters. Dysfunction/failure was observed in the respiratory, haemostatic and hepatic system of all infected animals, together with initial cardiovascular dysfunction. The pulmonary system was the first to fail clinically, which corresponds with similar human findings, whereas......The human sequential organ failure assessment (SOFA) scoring system is used worldwide in intensive care units for assessing the extent of organ dysfunction/failure in patients with severe sepsis. An increasing number of septic cases are caused by Gram-positive bacteria as Staphylococcus aureus...

  3. Statistic-mathematical interpretation of some assessment parameters of the grassland ecosystem according to soil characteristics

    Science.gov (United States)

    Samfira, Ionel; Boldea, Marius; Popescu, Cosmin

    2012-09-01

    Significant parameters of permanent grasslands are represented by the pastoral value and Shannon and Simpson biodiversity indices. The dynamics of these parameters has been studied in several plant associations in Banat Plain, Romania. From the point of view of their typology, these permanent grasslands belong to the steppe area, series Festuca pseudovina, type Festuca pseudovina-Achilea millefolium, subtype Lolium perenne. The methods used for the purpose of this research included plant cover analysis (double meter method, calculation of Shannon and Simpson indices), and statistical methods of regression and correlation. The results show that, in the permanent grasslands in the plain region, when the pastoral value is average to low, the level of interspecific biodiversity is on the increase.

  4. Towards Automating Clinical Assessments: A Survey of the Timed Up and Go (TUG)

    Science.gov (United States)

    Sprint, Gina; Cook, Diane; Weeks, Douglas

    2016-01-01

    Older adults often suffer from functional impairments that affect their ability to perform everyday tasks. To detect the onset and changes in abilities, healthcare professionals administer standardized assessments. Recently, technology has been utilized to complement these clinical assessments to gain a more objective and detailed view of functionality. In the clinic and at home, technology is able to provide more information about patient performance and reduce subjectivity in outcome measures. The timed up and go (TUG) test is one such assessment recently instrumented with technology in several studies, yielding promising results towards the future of automating clinical assessments. Potential benefits of technological TUG implementations include additional performance parameters, generated reports, and the ability to be self-administered in the home. In this paper, we provide an overview of the TUG test and technologies utilized for TUG instrumentation. We then critically review the technological advancements and follow up with an evaluation of the benefits and limitations of each approach. Finally, we analyze the gaps in the implementations and discuss challenges for future research towards automated, self-administered assessment in the home. PMID:25594979

  5. Waist circumference, waist/height ratio, and neck circumference as parameters of central obesity assessment in children☆

    OpenAIRE

    Magalhães,Elma Izze da Silva; Sant'Ana, Luciana Ferreira da Rocha; Priore, Silvia Eloiza; Sylvia do Carmo Castro FRANCESCHINI

    2014-01-01

    Objective: To analyze studies that assessed the anthropometric parameters waist circumference (WC), waist-to-height ratio (WHR) and neck circumference (NC) as indicators of central obesity in children. Data sources: We searched PubMed and SciELO databases using the combined descriptors: "Waist circumference", "Waist-to-height ratio", "Neck circumference", "Children" and "Abdominal fat" in Portuguese, English and Spanish. Inclusion criteria were original articles with information about the WC,...

  6. Radiosterilization of Fluoroquinolones and Cephalosporins: Assessment of Radiation Damage on Antibiotics by Changes in Optical Property and Colorimetric Parameters

    OpenAIRE

    2009-01-01

    A most common problem encountered in radiosterilization of solid drugs is discoloration or yellowing. By pharmacopoeia method, discoloration can be assessed by measuring absorbance of solutions of irradiated solid samples at 450 nm. We propose to evaluate discoloration of solid samples directly by recording their diffuse reflectance spectra. Further, the reflectance spectrum is used to compute various color parameters: CIE XYZ tristimulus value, CIE Lab, \\documentclass[12pt]{minimal} \\...

  7. Assessment of soil quality parameters using multivariate analysis in the Rawal Lake watershed.

    Science.gov (United States)

    Firdous, Shahana; Begum, Shaheen; Yasmin, Azra

    2016-09-01

    Soil providing a wide array of ecosystem services is subjected to quality deterioration due to natural and anthropogenic factors. Most of the soils in Pakistan have poor status of available plant nutrients and cannot support optimum levels of crop productivity. The present study statistically analyzed ten soil quality parameters in five subwatersheds (Bari Imam, Chattar, Rumli, Shahdra, and Shahpur) of the Rawal Lake. Analysis of variance (ANOVA), cluster analysis (CA), and principal component analysis (PCA) were performed to evaluate correlation in soil quality parameters on spatiotemporal and vertical scales. Soil organic matter, electrical conductivity, nitrates, and sulfates were found to be lower than that required for good quality soil. Soil pH showed significant difference (p 0.75) and indicated that these were the most influential parameters of first factor or component. Cluster analysis separated five sampling sites into three statistically significant clusters: I (Shahdra-Bari Imam), II (Chattar), and III (Shahpur-Rumli). Among the five sites, Shahdra was found to have good quality soil followed by Bari Imam. The present study illustrated the usefulness of multivariate statistical approaches for the analysis and interpretation of complex datasets to understand variations in soil quality for effective watershed management.

  8. Porcine model characterizing various parameters assessing the outcome after acetaminophen intoxication induced acute liver failure

    Science.gov (United States)

    Thiel, Karolin; Klingert, Wilfried; Klingert, Kathrin; Morgalla, Matthias H; Schuhmann, Martin U; Leckie, Pamela; Sharifi, Yalda; Davies, Nathan A; Jalan, Rajiv; Peter, Andreas; Grasshoff, Christian; Königsrainer, Alfred; Schenk, Martin; Thiel, Christian

    2017-01-01

    AIM To investigate the changes of hemodynamic and laboratory parameters during the course of acute liver failure following acetaminophen overdose. METHODS Eight pigs underwent a midline laparotomy following jejunal catheter placement for further acetaminophen intoxication and positioning of a portal vein Doppler flow-probe. Acute liver failure was realized by intrajejunal acetaminophen administration in six animals, two animals were sham operated. All animals were invasively monitored and received standardized intensive care support throughout the study. Portal blood flow, hemodynamic and ventilation parameters were continuously recorded. Laboratory parameters were analysed every eight hours. Liver biopsies were sampled every 24 h following intoxication and upon autopsy. RESULTS Acute liver failure (ALF) occurred after 28 ± 5 h resulted in multiple organ failure and death despite maximal support after further 21 ± 1 h (study end). Portal blood flow (baseline 1100 ± 156 mL/min) increased to a maximum flow of 1873 ± 175 mL/min at manifestation of ALF, which was significantly elevated (P 0.01). CONCLUSION Declining portal blood flow and subsequent severe thrombocytopenia after acetaminophen intoxication precede fatality in a porcine acute liver failure model. PMID:28321158

  9. Assessment of Routine Procedure Effect on Breathing Parameters in Mice by Using Whole-Body Plethysmography

    Science.gov (United States)

    Raşid, Orhan; Chirita, Daniel; Iancu, Adina D; Stavaru, Crina; Radu, Dorel L

    2012-01-01

    We used whole-body plethysmography to investigate the effect of restraint, ear marking, tail vein and retroorbital blood sampling, and tail clipping on respiration in Balb/c × TCR-HA+/– F1 hybrid mice (F1h). Baseline values of breathing parameters were determined. During the experiment, mice experienced a procedure and then plethysmographic recordings were obtained immediately and at 4, 24, and 48 h afterward. Baseline breathing parameters showed significant differences between sexes. Restraint affected minute volume differently than did handling in male mice and to a lesser extent in female mice. Ear marking significantly changed minute volume compared with handling but not restraint in male mice and in the opposite manner in female mice. Tail vein blood sampling changed minute volume in a significant manner compared with restraint but not compared with handling in both sexes. Retroorbital blood sampling significantly changed minute volume compared with values for both handling and restraint in male mice but only compared with handling in female mice. Tail clipping modified minute volume significantly compared with handling in male mice and compared with restraint in both sexes. Analysis of data showed that routine procedures affect minute volume in mice depending on invasiveness of maneuver and in a sex-biased manner for as long as 24 h after the procedure. Our experiment shows that procedures performed on laboratory mice can change respiratory parameters and can be investigated by plethysmography. PMID:23043813

  10. A comparison of region-based and pixel-based CEUS kinetics parameters in the assessment of arthritis

    Science.gov (United States)

    Grisan, E.; Raffeiner, B.; Coran, A.; Rizzo, G.; Ciprian, L.; Stramare, R.

    2014-03-01

    Inflammatory rheumatic diseases are leading causes of disability and constitute a frequent medical disorder, leading to inability to work, high comorbidity and increased mortality. The gold-standard for diagnosing and differentiating arthritis is based on patient conditions and radiographic findings, as joint erosions or decalcification. However, early signs of arthritis are joint effusion, hypervascularization and synovial hypertrophy. In particular, vascularization has been shown to correlate with arthritis' destructive behavior, more than clinical assessment. Contrast Enhanced Ultrasound (CEUS) examination of the small joints is emerging as a sensitive tool for assessing vascularization and disease activity. The evaluation of perfusion pattern rely on subjective semi-quantitative scales, that are able to capture the macroscopic degree of vascularization, but are unable to detect the subtler differences in kinetics perfusion parameters that might lead to a deeper understanding of disease progression and a better management of patients. Quantitative assessment is mostly performed by means of the Qontrast software package, that requires the user to define a region of interest, whose mean intensity curve is fitted with an exponential function. We show that using a more physiologically motivated perfusion curve, and by estimating the kinetics parameters separately pixel per pixel, the quantitative information gathered is able to differentiate more effectively different perfusion patterns. In particular, we will show that a pixel-based analysis is able to provide significant markers differentiating rheumatoid arthritis from simil-rheumatoid psoriatic arthritis, that have non-significant differences in clinical evaluation (DAS28), serological markers, or region-based parameters.

  11. A methodology for determining interactions in probabilistic safety assessment models by varying one parameter at a time.

    Science.gov (United States)

    Borgonovo, Emanuele

    2010-03-01

    In risk analysis problems, the decision-making process is supported by the utilization of quantitative models. Assessing the relevance of interactions is an essential information in the interpretation of model results. By such knowledge, analysts and decisionmakers are able to understand whether risk is apportioned by individual factor contributions or by their joint action. However, models are oftentimes large, requiring a high number of input parameters, and complex, with individual model runs being time consuming. Computational complexity leads analysts to utilize one-parameter-at-a-time sensitivity methods, which prevent one from assessing interactions. In this work, we illustrate a methodology to quantify interactions in probabilistic safety assessment (PSA) models by varying one parameter at a time. The method is based on a property of the functional ANOVA decomposition of a finite change that allows to exactly determine the relevance of factors when considered individually or together with their interactions with all other factors. A set of test cases illustrates the technique. We apply the methodology to the analysis of the core damage frequency of the large loss of coolant accident of a nuclear reactor. Numerical results reveal the nonadditive model structure, allow to quantify the relevance of interactions, and to identify the direction of change (increase or decrease in risk) implied by individual factor variations and by their cooperation.

  12. Reproducibility of parameters for assessment of diabetic neuropathy. The French Group for Research and Study of Diabetic Neuropathy.

    Science.gov (United States)

    Valensi, P; Attali, J R; Gagant, S

    1993-12-01

    This study evaluated the reproducibility of nerve function assessment in a group of 132 diabetic patients with moderate peripheral polyneuropathy. Patients were investigated at the beginning and the end of the run-in period (a 1-month placebo period) of a multicentre trial of an aldose-reductase inhibitor (Ponalrestat). Reproducibility was evaluated by performing four types of tests: quantitative visual scales of symptoms, quantitative sensory assessment (vibration perception thresholds in medial malleolus and great toe, foot thermal perception threshold to hot and cold), electrophysiological investigations on the dominant side (conduction velocities and potential amplitudes of sensory and median motor nerve, sural and peroneal nerves, amplitudes of F waves of median motor and peroneal nerves) and cardiac autonomic tests (Valsalva, deep-breathing, lying-to-standing). Reproducibility was poor for symptoms, thermal sensitivity, and potential amplitudes. It was satisfactory (total coefficient of variation waves and the three autonomic tests. For most of the parameters total variance was mainly related to inter-subject variability. However, inter-subject variability for the three cardiac autonomic tests was very low and at least one cardiac autonomic test was altered in all the patients. Inter-centre variability was low for all the parameters, except for action potential amplitudes and for F wave velocity of the median motor nerve. This study suggests those parameters that are appropriate for the assessment of diabetic neuropathy and for therapeutic trials.(ABSTRACT TRUNCATED AT 250 WORDS)

  13. Methodology for assessing the lighting of pedestrian crossings based on light intensity parameters

    Directory of Open Access Journals (Sweden)

    Tomczuk Piotr

    2017-01-01

    Full Text Available One of the possible preventive measures that could improve safety at crossings is to assess the state of illumination of the lighting installation located in the transition area for pedestrians. The City of Warsaw has undertaken to comprehensively assess the pedestrian crossings to determine the level of road safety and the condition of lighting. The lighting conditions related to pedestrian crossings without traffic lights in three central districts of the city were investigated. The conducted field research and the work of the team of experts lead to the development of tools to assess the level of risk due to the lighting conditions measured at night. The newly developed and used method of assessment and the experience gained should provide a valuable contribution to the development of uniform risk assessment rules for pedestrian crossings in Poland. The authors of this paper have attempted to systematize the description of the method of evaluation of the lighting installed in the area of pedestrian crossings.

  14. Assessing Pesticide Impact on Human Health in Nebraska: A Survey of Fire Departments. Department Report No. 11.

    Science.gov (United States)

    Vitzthum, Edward F.; And Others

    A mail survey of Nebraska fire departments/districts was conducted during summer 1983 to assess the human and physical resources available to them with special emphasis on equipment and protective clothing needed in pesticide-related emergencies. It also assessed general preparedness for responding to agrichemical emergencies, particularly those…

  15. Evaluation of Effecting Parameters on Optimum Arrangement of Urban Land Uses and Assessment of Their Compatibility Using Adjacency Matrix

    Science.gov (United States)

    Vaezi, S.; Mesgari, M. S.; Kaviary, F.

    2015-12-01

    Todays, stability of human life is threatened by a set of parameters. So sustainable urban development theory is introduced after the stability theory to protect the urban environment. In recent years, sustainable urban development gains a lot of attraction by different sciences and totally becomes a final target for urban development planners and managers to use resources properly and to establish a balanced relationship among human, community, and nature. Proper distribution of services for decreasing spatial inequalities, promoting the quality of living environment, and approaching an urban stability requires an analytical understanding of the present situation. Understanding the present situation is the first step for making a decision and planning effectively. This paper evaluates effective parameters affecting proper arrangement of land-uses using a descriptive-analytical method, to develop a conceptual framework for understanding of the present situation of urban land-uses, based on the assessment of their compatibility. This study considers not only the local parameters, but also spatial parameters are included in this study. The results indicate that land-uses in the zone considered here are not distributed properly. Considering mentioned parameters and distributing service land-uses effectively cause the better use of these land-uses.

  16. Phase I Archaeological Survey of Parcel ED-3 and Historic Assessement of the Happy Valley Worker Camp Roane County, Tennessee

    Energy Technology Data Exchange (ETDEWEB)

    New South Associates

    2009-08-17

    Parcel ED-3 was the location of a portion of 'Happy Valley', a temporary worker housing area occupied from 1943 to 1947 during the construction of the K-25 Oak Ridge Gaseous Diffusion Plant. The project was carried out under subcontract for the Department of Energy. The survey report will be used in the preparation of an Environmental Assessment under the National Environmental Policy Act (NEPA). New South Associates conducted a Phase I Archaeological Survey of Parcel ED-3 at the US Department of Energy's Oak Ridge Reservation in Roane County, Tennessee. The survey was conducted in two parts. The first survey was carried out in 2008 and covered an area measuring approximately 110 acres. The second survey took place in 2009 and focused on 72 acres west of the first survey area. The objective of the surveys was to identify any archaeological remains associated with Happy Valley and any additional sites on the property and to assess these sites for National Register eligibility. New South Associates also conducted a historic assessment to gather information on Happy Valley. This historic assessment was used in conjunction with the archaeological survey to evaluate the significance of the Happy Valley site. Archaeological remains of Happy Valley were located throughout the parcel, but no additional sites were located. The official state site number for Happy Valley is 40RE577. During the two surveys a total of 13 artifact concentrations, 14 isolated finds, and 75 structural features were located. Due to the Happy Valley's stron gassociation with the Manhattan Project, the site is recommended eligible for the National Register of Historic Places under Criterion A.

  17. A global quantitative survey of hemostatic assessment in postpartum hemorrhage and experience with associated bleeding disorders.

    Science.gov (United States)

    James, Andra H; Cooper, David L; Paidas, Michael J

    2017-01-01

    Coagulopathy may be a serious complicating or contributing factor to postpartum hemorrhage (PPH), and should be promptly recognized to ensure proper bleeding management. This study aims to evaluate the approaches of obstetrician-gynecologists worldwide towards assessing massive PPH caused by underlying bleeding disorders. A quantitative survey was completed by 302 obstetrician-gynecologists from 6 countries (the UK, France, Germany, Italy, Spain, and Japan). The survey included questions on the use of hematologic laboratory studies, interpretation of results, laboratory's role in coagulation assessments, and experience with bleeding disorders. Overall, the most common definitions of "massive" PPH were >2,000 mL (39%) and >1,500 mL (34%) blood loss. The most common criteria for rechecking a "stat" complete blood count and for performing coagulation studies were a drop in blood pressure (73%) and ongoing visible bleeding (78%), respectively. Laboratory coagulation (prothrombin time/activated partial thromboplastin time [PT/aPTT]) and factor VIII/IX assays were performed on-site more often than were mixing studies (laboratory coagulation studies, 93%; factor VIII/IX assays, 63%; mixing studies, 22%). Most commonly consulted sources of additional information were colleagues within one's own specialty (68%) and other specialists (67%). Most respondents had consulted with a hematologist (78%; least, Germany [56%]; greatest, UK [98%]). The most common reason for not consulting was hematologist unavailability (44%). The most commonly reported thresholds for concern with PT and aPTT were 13 to 20 seconds (36%) and 30 to 45 seconds (50%), respectively. Most respondents reported having discovered an underlying bleeding disorder (58%; least, Japan [35%]; greatest, Spain [74%]). Global survey results highlight similarities and differences between countries in how PPH is assessed and varying levels of obstetrician-gynecologist experience with identification of underlying

  18. High-temperature flaw assessment procedure: A state-of-the-art survey

    Energy Technology Data Exchange (ETDEWEB)

    Ruggles, M.B.; Takahashi, Y.

    1989-05-01

    High-temperature crack growth under cyclic, static, and combined loading is received with an emphasis on fracture mechanics aspects. Experimental studies of the effects of loading history, microstructure, temperature, and environment on crack growth behavior are described and interpreted. The experimental evidence is used to examine crack growth parameters and theoretical models for fatigue, creep, and creep-fatigue crack propagation at elevated temperatures. The limitations of both elastic and elastic-plastic fracture mechanics for high-temperature subcritical crack growth are assessed. Existing techniques for modeling critical crack growth/ligament instability failure are also presented. Related topics of defect modeling and engineering flaw assessment procedures, nondestructive evaluation methods, and probabilistic failure analysis are briefly discussed. 142 refs., 33 figs.

  19. Patient Experience Assessment is a Requisite for Quality Evaluation: A Discussion of the In-Center Hemodialysis Consumer Assessment of Health Care Providers and Systems (ICH CAHPS) Survey.

    Science.gov (United States)

    Cavanaugh, Kerri L

    2016-01-01

    Patient experience surveys provide a critical and unique perspective on the quality of patient-centered healthcare delivery. These surveys provide a mechanism to systematically express patients' voice on topics valued by patients to make decisions about choices in care. They also provide an assessment to healthcare organizations about their service that cannot be obtained from any other source. Regulatory agencies have mandated the assessment of patients' experience as part of healthcare value based purchasing programs and weighted the results to account for up to 30% of the total scoring. This is a testimony to the accepted importance of this metric as a fundamental assessment of quality. After more than a decade of rigorous research, there is a significant body of growing evidence supporting specifically the validity and use of the Consumer Assessment of Healthcare Providers and Systems (CAHPS) surveys, including a version specific to in-center hemodialysis (ICH CAHPS). This review will focus on the ICH CAHPS survey including a review of its development, content, administration, and also a discussion of common criticisms. Although it is suggested that the survey assesses activities and experiences that are not modifiable by the healthcare organization (or the dialysis facility in our case) emerging evidence suggests otherwise. Dialysis providers have an exclusive opportunity to lead the advancement of understanding the implications and serviceability of the evaluation of the patient experience in health care. © 2016 Wiley Periodicals, Inc.

  20. Assessment of hemato-biochemical parameters on exposure to low level of deltamethrin in mouse model

    Directory of Open Access Journals (Sweden)

    Anita Tewari

    2014-03-01

    Full Text Available Aim: In this study, sub-acute toxicity of deltamethrin on hematological and biochemical blood parameters of male albino Swiss mice was evaluated. Materials and Methods: Generally, the maximum permissible residue level (MRL of deltamethrin for food products lies between 0.01 to 0.5 mg/kg body weight. So the mice were exposed orally with two doses of pesticide i.e. 0.1 and 0.5 mg/kg body weight. The doses were given on a daily basis for a period of 15 days and 30 days respectively. Ground nut oil was used as control treatment. Samples of blood were collected at the end of the treatment. Hepatotoxicity was evaluated by quantitative analysis of the serum enzymes alanine transaminase (ALT, aspartate transaminase (AST, alkaline phosphatase (ALKP, total bilirubin (TBIL and serum urea. Alterations of hematological parameters were analysed by total leukocyte, differential leukocyte count and hemoglobin levels. Results: Significant increase in the levels of hepatic enzymes (ALT, AST, ALKP were observed for both doses, but no considerable differences were found by histological analysis. The hematological parameters showed significant alterations for 0.5 mg/kg body weight dose which is indicated by leukocytosis, lymphocytosis and neutropenia in long duration study. Conclusions: The results indicated that even very low dose of deltamethrin can promote hematological and hepatic alterations. Thus it is imperative to do further studies on the detrimental effect of the low levels of pyrethroid commonly present in our food, which further necessitate the reduction of maximum permissible levels of residual synthetic pyrethroid levels in foods and feed.

  1. Methods comparison: assessing agreement of physiological parameters obtained from exercise on two different cycle ergometers.

    Science.gov (United States)

    Siedlik, Jake A; Harrison, Grant; Brigman, Robert; Graham, Zachary A; Weir, Joseph P; Gallagher, Philip M; Vardiman, John P

    2015-04-01

    The purpose of this study was to determine the agreement of physiological parameters measured during exercise testing on 2 devices at established power outputs (POs). Ten trained male cyclists were recruited. The devices used for comparison were the Lode stationary bicycle ergometer (SBE) (Lode Excalibur) and the PowerTap Pro+ (BPT) (Saris Cycling Group) mobile ergometer. The physiological parameters recorded at established PO (50, 100, 150, 200, 250 W) were heart rate (HR), oxygen consumption ((Equation is included in full-text article.)), pulmonary ventilation (VE), blood lactate, and ratings of perceived exertion (RPE). Subjects were randomized once to the SBE and 3 times to a bicycle equipped with a BPT. After 15 minutes of unloaded pedaling, the trial began with 5 minutes of cycling at 50 W. Intensity increased by 50 W every 5 minutes up to 250 W. Physiological measures were recorded at each PO. Bland-Altman plots were constructed including computation of the ratio of half the range of limits of agreement and the mean of the pairwise means along with bivariate regression calculations for analysis of the linear association between device measurements. Moderate to good agreement was found for HR with agreement improving as PO increased. Comparisons of (Equation is included in full-text article.)found agreement increased as the PO increased. VE, RPE, and lactate did not consistently provide similar measures across trials. The level of agreement between HR and (Equation is included in full-text article.)when comparing the SBE and BPT suggests that the PowerTap Pro+ is a sufficient tool for estimating PO and associated physiological parameters in the field.

  2. Hot subdwarfs from the ESO Supernova Ia Progenitor Survey - I. Atmospheric parameters and cool companions of sdB stars

    CERN Document Server

    Lisker, T; Napiwotzki, R; Christlieb, N; Han, Z; Homeier, D; Reimers, D

    2004-01-01

    We present the analysis of a high-resolution, high-quality sample of optical spectra for 76 subdwarf B (sdB) stars from the ESO Supernova Ia Progenitor Survey (SPY). Effective temperature, surface gravity, and photospheric helium abundance are determined simultaneously by fitting the profiles of hydrogen and helium lines using synthetic spectra calculated from LTE and NLTE model atmospheres. We perform a detailed comparison of our measurements with theoretical calculations, both for single star evolution and for binary population synthesis models of close binary evolution. The luminosity evolution given by the standard EHB evolutionary tracks from Dorman et al. (1993) shows an overall agreement in shape with our observations, although a constant offset in luminosity exists. The various simulation sets for binary formation channels of sdB stars calculated by Han et al. (2003) are compared individually to our data for testing our current understanding of sdB formation processes and the physical effects involved...

  3. Non-destructive Assessment of Relief Marking Parameters of Heat Shrinkable Installation Parts for Aviation Technology

    Directory of Open Access Journals (Sweden)

    Kondratov Aleksandr P.

    2017-01-01

    Full Text Available The article explains a new method of relief marking of heat-shrinkable tubing and sleeves made of polymer materials with “shape memory effect.” Method of instrument evaluation of relief marking stereometry of installation parts for aviation equipment, made of polyvinyl chloride, polyethyleneterephthalate and polystyrene was developed and the results were explained. Parameters of pin-point relief marking and compliance of point forms to the Braille font standard were determined with the use of the non-destructive method based on the color of interference pattern with precision of 0.02 mm.

  4. Bone Mineral Density Assessment in Ankylosing Spondylitis and Characteristics of Bone Turnover Parameters

    Directory of Open Access Journals (Sweden)

    Füsun Şahin

    2005-09-01

    Full Text Available Ankylosing spondylitis, characterised with excessive new bone formation and calcification in spine and peripheral joints, causes osteoporosis which is a general component of inflammatory arthritis. Since is excessive bone formation affects bone mineral density, there are problems in diagnosis and follow-up of osteoporosis efforts made for finding the right diagnostic tool. Besides bone metabolism and turn-over in inflammatory diseases should be known in detail, because it has a place in diagnosis and follow-up. In this review, bone mineral density in ankylosing spondylitis, the importance and usage of bone turn-over parameters are discussed in the light of literature data.

  5. Practice Parameter for the Assessment and Treatment of Children and Adolescents with Enuresis

    Science.gov (United States)

    Fritz, Gregory; Rockney, Randy

    2004-01-01

    Enuresis is a symptom that is frequently encountered in child psychiatric evaluations. Careful assessment is required to identify specific urologic, developmental, psychosocial, and sleep-related etiologies. For most children with enuresis, however, a specific etiology cannot be determined. Treatment then involves supportive approaches,…

  6. Summary of the Practice Parameter for the Assessment and Treatment of Children and Adolescents with Enuresis

    Science.gov (United States)

    Fritz, Gregory; Rockney, Randy

    2004-01-01

    Enuresis is a symptom that is frequently encountered in child psychiatric evaluations. Careful assessment is required to identify specific urologic, developmental, psychosocial, and sleep-related etiologies. For most children with enuresis, however, a specific etiology cannot be determined. Treatment then involves supportive approaches,…

  7. Comparison of nutritional status assessment parameters in predicting length of hospital stay in cancer patients.

    Science.gov (United States)

    Mendes, J; Alves, P; Amaral, T F

    2014-06-01

    Undernutrition has been associated with an increased length of hospital stay which may reflect the patient prognosis. The aim of this study was to quantify and compare the association between nutritional status and handgrip strength at hospital admission with time to discharge in cancer patients. An observational prospective study was conducted in an oncology center. Patient-Generated Subjective Global Assessment, Nutritional Risk Screening 2002 and handgrip strength were conducted in a probabilistic sample of 130 cancer patients. The association between baseline nutritional status, handgrip strength and time to discharge was evaluated using survival analysis with discharge alive as the outcome. Nutritional risk ranged from 42.3 to 53.1% depending on the tool used. According to Patient-Generated Subjective Global Assessment severe undernutrition was present in 22.3% of the sample. The association between baseline data and time to discharge was stronger in patients with low handgrip strength (adjusted hazard ratio, low handgrip strength: 0.33; 95% confidence interval: 0.19-0.55), compared to undernourished patients evaluated by the other tools; Patient-Generated Subjective Global Assessment: (adjusted hazard ratio, severe undernutrition: 0.45; 95% confidence interval: 0.27-0.75) and Nutritional Risk Screening 2002: (adjusted hazard ratio, with nutritional risk: 0.55; 95% confidence interval: 0.37-0.80). An approximate 3-fold decrease in probability of discharge alive was observed in patients with low handgrip strength. Decreasing handgrip strength tertiles allowed to discriminate between patients who will have longer hospital stay, as well as undernutrition and nutritional risk assessed by Patient-Generated Subjective Global Assessment and Nutritional Risk Screening 2002. Copyright © 2013 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.

  8. Left atrial strain: a new parameter for assessment of left ventricular filling pressure.

    Science.gov (United States)

    Cameli, Matteo; Mandoli, Giulia Elena; Loiacono, Ferdinando; Dini, Frank Lloyd; Henein, Michael; Mondillo, Sergio

    2016-01-01

    In order to obtain accurate diagnosis, treatment and prognostication in many cardiac conditions, there is a need for assessment of left ventricular (LV) filling pressure. While systole depends on ejection function of LV, diastole and its disturbances influence filling function and pressures. The commonest condition that represents the latter is heart failure with preserved ejection fraction in which LV ejection is maintained, but diastole is disturbed and hence filling pressures are raised. Significant diastolic dysfunction results in raised LV end-diastolic pressure, mean left atrial (LA) pressure and pulmonary capillary wedge pressure, all referred to as LV filling pressures. Left and right heart catheterization has traditionally been used as the gold standard investigation for assessing these pressures. More recently, Doppler echocardiography has taken over such application because of its noninvasive nature and for being patient friendly. A number of indices are used to achieve accurate assessment of filling pressures including: LV pulsed-wave filling velocities (E/A ratio, E wave deceleration time), pulmonary venous flow (S wave and D wave), tissue Doppler imaging (E' wave and E/E' ratio) and LA volume index. LA longitudinal strain derived from speckle tracking echocardiography (STE) is also sensitive in estimating intracavitary pressures. It is angle-independent, thus overcomes Doppler limitations and provides highly reproducible measures of LA deformation. This review examines the application of various Doppler echocardiographic techniques in assessing LV filling pressures, in particular the emerging role of STE in assessing LA pressures in various conditions, e.g., HF, arterial hypertension and atrial fibrillation.

  9. A survey to assess family physicians' motivation to teach undergraduates in their practices.

    Directory of Open Access Journals (Sweden)

    Marcus May

    Full Text Available BACKGROUND: In Germany, family physicians (FPs are increasingly needed to participate in undergraduate medical education. Knowledge of FPs' motivation to teach medical students in their practices is lacking. PURPOSE: To describe a novel questionnaire that assesses the motivation of FPs to teach undergraduates in their practices and to show the results of a subsequent survey using this instrument. METHODS: The questionnaire was developed based on a review of the literature. Previously used empirical instruments assessing occupational values and motivation were included. A preliminary version was pretested in a pilot study. The resulting 68-item questionnaire was sent to 691 FPs involved in undergraduate medical education. Reliability was assessed and subgroups were analyzed with regard to differences in motivation. RESULTS: A total of 523 physicians in n = 458 teaching practices participated (response rate 75.7%. 'Helping others' and 'interest' were revealed as the predominant motives. Responses showed a predominantly intrinsic motivation of the participating FPs. Their main incentives were an ambition to work as a medical preceptor, to generally improve undergraduate education and to share knowledge. Material compensation was of minor importance. Time restraints were indicated as a barrier by some FPs, but were not a general concern. CONCLUSION: German FPs involved in medical education have altruistic attitudes towards teaching medical students in their practices. Motivational features give an important insight for the recruitment of FP preceptors as well as for their training in instructional methods.

  10. A Survey to Assess Family Physicians’ Motivation to Teach Undergraduates in Their Practices

    Science.gov (United States)

    May, Marcus; Mand, Peter; Biertz, Frank; Hummers-Pradier, Eva; Kruschinski, Carsten

    2012-01-01

    Background In Germany, family physicians (FPs) are increasingly needed to participate in undergraduate medical education. Knowledge of FPs’ motivation to teach medical students in their practices is lacking. Purpose To describe a novel questionnaire that assesses the motivation of FPs to teach undergraduates in their practices and to show the results of a subsequent survey using this instrument. Methods The questionnaire was developed based on a review of the literature. Previously used empirical instruments assessing occupational values and motivation were included. A preliminary version was pretested in a pilot study. The resulting 68-item questionnaire was sent to 691 FPs involved in undergraduate medical education. Reliability was assessed and subgroups were analyzed with regard to differences in motivation. Results A total of 523 physicians in n = 458 teaching practices participated (response rate 75.7%). ‘Helping others’ and ‘interest’ were revealed as the predominant motives. Responses showed a predominantly intrinsic motivation of the participating FPs. Their main incentives were an ambition to work as a medical preceptor, to generally improve undergraduate education and to share knowledge. Material compensation was of minor importance. Time restraints were indicated as a barrier by some FPs, but were not a general concern. Conclusion German FPs involved in medical education have altruistic attitudes towards teaching medical students in their practices. Motivational features give an important insight for the recruitment of FP preceptors as well as for their training in instructional methods. PMID:23029272

  11. Assessment of a relative contribution of terrestrial background radiation in the test field by using RADIAGEMTM 2000 portable survey meter

    Directory of Open Access Journals (Sweden)

    Avdić Senada

    2016-01-01

    Full Text Available This study is focused on the radiological investigation of terrestrial gamma radiation in the test field with soil samples from different minefields in the Federation of Bosnia and Herzegovina. Measurements of ambient dose equivalent rate, commonly referred to as “air dose rate”, in the test field located in the Tuzla Canton, were performed by RADIAGEMTM 2000 portable survey meter, based on energy-compensated Geiger-Muller counter. Its performances were tested in the laboratory conditions with gamma point sources. Since all the samples in the test field were exposed to the same cosmic radiation, there was a possibility to assess a relative contribution of terrestrial gamma radiation due to soil samples of different composition. One set of measurements in the test field was performed with RADIAGEMTM 2000, at a height of about one meter above the ground and basic statistical parameters indicated that there was no significant difference of terrestrial gamma radiation from different soil samples. The other set of measurements was carried out with the same device placed on the ground in the test field. Processing of experimental data on terrestrial gamma radiation has shown that it was possible to make a difference between relative contributions of terrestrial gamma radiation from individual soil samples. The results of investigation could be useful for multiple purposes of public interest.

  12. Quantitatively Plotting the Human Face for Multivariate Data Visualisation Illustrated by Health Assessments Using Laboratory Parameters

    Directory of Open Access Journals (Sweden)

    Wang Hongwei

    2013-01-01

    Full Text Available Objective. The purpose of this study was to describe a new data visualisation system by plotting the human face to observe the comprehensive effects of multivariate data. Methods. The Graphics Device Interface (GDI+ in the Visual Studio.NET development platform was used to write a program that enables facial image parameters to be recorded, such as cropping and rotation, and can generate a new facial image according to Z values from sets of normal data (Z>3 was still counted as 3. The measured clinical laboratory parameters related to health status were obtained from senile people, glaucoma patients, and fatty liver patients to illustrate the facial data visualisation system. Results. When the eyes, nose, and mouth were rotated around their own axes at the same angle, the deformation effects were similar. The deformation effects for any abnormality of the eyes, nose, or mouth should be slightly higher than those for simultaneous abnormalities. The facial changes in the populations with different health statuses were significant compared with a control population. Conclusions. The comprehensive effects of multivariate may not equal the sum of each variable. The 3Z facial data visualisation system can effectively distinguish people with poor health status from healthy people.

  13. Quantitatively plotting the human face for multivariate data visualisation illustrated by health assessments using laboratory parameters.

    Science.gov (United States)

    Hongwei, Wang; Hui, Liu

    2013-01-01

    The purpose of this study was to describe a new data visualisation system by plotting the human face to observe the comprehensive effects of multivariate data. The Graphics Device Interface (GDI+) in the Visual Studio.NET development platform was used to write a program that enables facial image parameters to be recorded, such as cropping and rotation, and can generate a new facial image according to Z values from sets of normal data (Z > 3 was still counted as 3). The measured clinical laboratory parameters related to health status were obtained from senile people, glaucoma patients, and fatty liver patients to illustrate the facial data visualisation system. When the eyes, nose, and mouth were rotated around their own axes at the same angle, the deformation effects were similar. The deformation effects for any abnormality of the eyes, nose, or mouth should be slightly higher than those for simultaneous abnormalities. The facial changes in the populations with different health statuses were significant compared with a control population. The comprehensive effects of multivariate may not equal the sum of each variable. The 3Z facial data visualisation system can effectively distinguish people with poor health status from healthy people.

  14. Comparison of echocardiographic parameters to assess right ventricular function in pulmonary hypertension.

    Science.gov (United States)

    Amano, Hirohisa; Abe, Shichiro; Hirose, Suguru; Waku, Ryutaro; Masuyama, Taiki; Sakuma, Masashi; Toyoda, Shigeru; Taguchi, Isao; Inoue, Teruo; Tei, Chuwa

    2017-05-19

    Although measurement of right ventricular ejection fraction (RVEF) may be relevant for evaluation of therapeutic efficacy and/or prognosis in patients with pulmonary hypertension, RVEF obtained by echocardiography has limited accuracy. In contrast, radionuclide and/or magnetic resonance imaging can measure RVEF more reliably. In this study, we investigated the relationship between RVEF measured by radionuclide angiography and the echocardiographic parameters that are recommended by the American Society of Echocardiography as representative of right heart function. There were 23 study participants with pulmonary hypertension who underwent radionuclide angiography and 2-dimensional and Doppler echocardiography (n = 30 measurements). RVEF measured by radionuclide angiography correlated with right ventricular Tei index (RV Tei index) measured by Doppler echocardiography (r = -0.601, P right ventricular function parameters (r = -0.644, P < 0.005). The RV Tei index measured by Doppler echocardiography may be an acceptable surrogate marker of RVEF in patients with pulmonary hypertension.

  15. Assessment of Cardiovascular Parameters during Meditation with Mental Targeting in Varsity Swimmers

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    Tyvin A. Rich

    2016-01-01

    Full Text Available Introduction. Athletes who develop an immunosuppressed state because of intensive training get upper respiratory infections (URIs and may respond to meditation. Reflective exercise (RE, a westernized form of Qigong, combines meditation, breathing, and targeted mental attention to an internal pulsatile sensation, previously shown to protect varsity swimmers from URIs during the height of training. We report here the evaluation of cardiovascular parameters measured during meditation combined with targeted imagery (interoception in a cohort of varsity swimmers taught RE. Methods. Thirteen subjects were enrolled on a prospective protocol that used the CareTaker, a noninvasive cardiovascular monitor before, during, and after RE training. Questionnaires regarding targeted mental imagery focusing on a pulsatile sensation were collected. The cardiovascular parameters include heart rate, blood pressure, and heart rate variability (HRV. Results. Increased variance in the subjects’ BP and HRV was observed over the training period of 8 weeks. In nine subjects there was an increased low frequency (LF HRV that was significantly (p<0.05 associated with the subject’s awareness of the pulsatile sensation that makes up a basic part of the RE practice. Summary. These data support further evaluation of HRV measurements in subjects while meditating with mental imagery. This direction could contribute to better understanding of neurocardiac mechanisms that relate meditation to enhanced immunity.

  16. Biochemical adaptations in middle-distance runners: an assessment of blood and anthropometric parameters

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    Danila Di Majo

    2014-12-01

    Full Text Available In order to understand the mechanism underlying the physiological adaptation of purely aerobic workout, we investigated the effect of 2 months of training on nine males (17-22 year-old middle distance running agonistic athletes. Blood sample was collected in the morning to analyze: hematological parameters, lipid profile, liver function enzymes [glutamate oxaloacetate transaminase, glutamate pyruvate transaminase, gamma-glutamyl transferase (γ-GT] and skeletal and myocardial markers of muscle damage [creatin kinase (CK and creatin kinase MB (CK-MB]. Endurance training, as it implies high oxygen consumption, should increase reactive oxygen species, but it has been shown that exercise leads to increased activation of antioxidant defenses. In fact, serum levels of γ-GT enzyme and total CK were not increased. On the other hand, a statistical significant reduction of CKMB has been observed. There were not variations in hematological parameters. As far as the anthropometric value is concerned, after two months of training there was a change in weight (P<0.0001. Finally, any oxidative and biological stress was highlighted in the middle distance runners but, since this is a preliminary study, it would be of interest to replicate the study on a larger sample.

  17. Assessment of the Body Composition and Parameters of the Cardiovascular Risk in Juvenile Idiopathic Arthritis

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    Ewa Jednacz

    2015-01-01

    Full Text Available The study was aimed to evaluate cardiovascular risk parameters, body mass index (BMI centiles for sex and age, and body fat percentage using the electric bioimpedance method in children with juvenile idiopathic arthritis (JIA. 30 children with JIA participated in the study. A control group included 20 children. Patients were well matched for the age and sex. The body mass and body fat percentage were determined using the segmental body composition analyser; the BMI centiles were determined. All patients had the following parameters determined: lipid profile, hsCRP, homocysteine, and IL-6. The intima media thickness (IMT was measured. Patients with JIA had significantly lower body weight, BMI, and the BMI centile compared to the control group. The IL-6 levels were significantly higher in patients with JIA compared to the control group. There were no differences between two groups with regard to the lipid profile, % content of the fat tissue, homocysteine levels, hsCRP, and IMT. Further studies are necessary to search for reasons for lower BMI and BMI centile in children with JIA and to attempt to answer the question of whether lower BMI increases the cardiovascular risk in these patients, similarly as in patients with rheumatoid arthritis (RA.

  18. Daily Sleep Changes in a Noisy Environment Assessed by Subjective and Polygraphic Sleep Parameters

    Science.gov (United States)

    Kawada, T.; Sasazawa, Y.; Kiryu, Y.; Suzuki, S.

    1997-08-01

    Habituation of sleep to a noisy environment was investigated by self-rated sleep scores, polygraphic sleep parameters, and a performance test on the following morning. The self-rated sleep questionaire, OSA, includes five factors of subjective sleep quality: sleepiness, sleep maintenance, worry, integrated sleep feeling and sleep initiation. The polygraphic sleep parameters were six sleep stages in minutes, sleep latency, REM latency, REM cycle, REM duration, frequency and duration in minutes of awakening during sleep, total sleep time, number of sleep stage shifts, sleep efficiency, number of sleep spindles and density. The differences between reaction times before sleep that night and the following morning were also examined. The subjects were twelve students aged 19 to 21 who were tested a total of 96 nights. Each subject slept in an experimental room and was exposed to recorded passing truck noise with peak levels of 45, 50, 55 and 60 dB(A) at intervals of 15 min. Significant changes were recognized in Stage 1, MT, frequency of awakening and number of sleep stage shifts. The authors speculate that the decrease in the shallow stage as noisy nights were repeated reflects habituation of night sleep to repeated passing truck noise, whose interval, duration and nature was constant.

  19. Assessment of cardiovascular parameters during dental procedures under the effect of benzodiazepines: a double blind study.

    Science.gov (United States)

    Faraco, Fatima Neves; Armonia, Paschoal Laércio; Simone, José Leonardo; Tortamano, Nicolau

    2003-01-01

    The purpose of this study was to evaluate cardiovascular parameters during dental procedures: systolic, diastolic, and mean blood pressures, and heart rate. Nineteen healthy normotensive patients (18-56 years of age) received restorative treatment on three maxillary molars. The patients were continuously monitored by a non-invasive automatic monitor for blood pressure and heart rate during the pre-, trans-, and post-operative periods at the following stages: 15 min prior to anesthesia; during topical anesthesia; during infiltrative anesthesia; for 5 minutes immediately after; during cavity preparation; during restorative procedure; for 10 min after completion. Patients were divided into three groups: A (without pre-medication), B (preceded by 10 mg diazepam), and C (preceded by placebo). All patients received infiltrative anesthesia containing 1.8 mL of 2% lidocaine (36 mg) with epinephrine 1:100,000 (18 microg). There were no changes in the parameters during the clinical procedures. When groups were compared, there were significant differences in diastolic arterial pressures during anesthesia.

  20. Assessment of cardiovascular parameters during dental procedures under the effect of benzodiazepines: a double blind study

    Directory of Open Access Journals (Sweden)

    Faraco Fatima Neves

    2003-01-01

    Full Text Available The purpose of this study was to evaluate cardiovascular parameters during dental procedures: systolic, diastolic, and mean blood pressures, and heart rate. Nineteen healthy normotensive patients (18-56 years of age received restorative treatment on three maxillary molars. The patients were continuously monitored by a non-invasive automatic monitor for blood pressure and heart rate during the pre-, trans-, and post-operative periods at the following stages: 15 min prior to anesthesia; during topical anesthesia; during infiltrative anesthesia; for 5 minutes immediately after; during cavity preparation; during restorative procedure; for 10 min after completion. Patients were divided into three groups: A (without pre-medication, B (preceded by 10 mg diazepam, and C (preceded by placebo. All patients received infiltrative anesthesia containing 1.8 mL of 2% lidocaine (36 mg with epinephrine 1:100,000 (18 µg. There were no changes in the parameters during the clinical procedures. When groups were compared, there were significant differences in diastolic arterial pressures during anesthesia.

  1. Risky business: factor analysis of survey data - assessing the probability of incorrect dimensionalisation.

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    Cees van der Eijk

    Full Text Available This paper undertakes a systematic assessment of the extent to which factor analysis the correct number of latent dimensions (factors when applied to ordered-categorical survey items (so-called Likert items. We simulate 2400 data sets of uni-dimensional Likert items that vary systematically over a range of conditions such as the underlying population distribution, the number of items, the level of random error, and characteristics of items and item-sets. Each of these datasets is factor analysed in a variety of ways that are frequently used in the extant literature, or that are recommended in current methodological texts. These include exploratory factor retention heuristics such as Kaiser's criterion, Parallel Analysis and a non-graphical scree test, and (for exploratory and confirmatory analyses evaluations of model fit. These analyses are conducted on the basis of Pearson and polychoric correlations. We find that, irrespective of the particular mode of analysis, factor analysis applied to ordered-categorical survey data very often leads to over-dimensionalisation. The magnitude of this risk depends on the specific way in which factor analysis is conducted, the number of items, the properties of the set of items, and the underlying population distribution. The paper concludes with a discussion of the consequences of over-dimensionalisation, and a brief mention of alternative modes of analysis that are much less prone to such problems.

  2. Risky business: factor analysis of survey data - assessing the probability of incorrect dimensionalisation.

    Science.gov (United States)

    van der Eijk, Cees; Rose, Jonathan

    2015-01-01

    This paper undertakes a systematic assessment of the extent to which factor analysis the correct number of latent dimensions (factors) when applied to ordered-categorical survey items (so-called Likert items). We simulate 2400 data sets of uni-dimensional Likert items that vary systematically over a range of conditions such as the underlying population distribution, the number of items, the level of random error, and characteristics of items and item-sets. Each of these datasets is factor analysed in a variety of ways that are frequently used in the extant literature, or that are recommended in current methodological texts. These include exploratory factor retention heuristics such as Kaiser's criterion, Parallel Analysis and a non-graphical scree test, and (for exploratory and confirmatory analyses) evaluations of model fit. These analyses are conducted on the basis of Pearson and polychoric correlations. We find that, irrespective of the particular mode of analysis, factor analysis applied to ordered-categorical survey data very often leads to over-dimensionalisation. The magnitude of this risk depends on the specific way in which factor analysis is conducted, the number of items, the properties of the set of items, and the underlying population distribution. The paper concludes with a discussion of the consequences of over-dimensionalisation, and a brief mention of alternative modes of analysis that are much less prone to such problems.

  3. Assessing Nephrological Competence among Geriatricians: A Proof of Concept Internet Survey.

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    Raffaele Antonelli Incalzi

    Full Text Available Chronic kidney disease (CKD is highly prevalent in the elderly and negatively impacts survival and health status. Thus, nephrological competence is mandatory for a skilled geriatrician. The present study aimed to assess nephrological competence in a sample of geriatricians recruited through a web survey. To this aim, a 12-items questionnaire was produced by an expert panel of nephrologists and geriatricians and was available online for members of the Italian Society of Gerontology and Geriatrics (SIGG. Two-hundred-eighty-seven geriatricians volunteered to fill in the questionnaire. The majority of them indirectly estimated the glomerular filtration rate (GFR using mainly the Cockroft-Gault (C-G formula. Selected nephrological exams, such as urinary Na and serum D-vitamin measurements, did not qualify as routine exams although the majority of geriatricians supplemented their patients with fat-soluble secosteroids. Ten percent of geriatricians asked for nephrological consultation only for stage 5 CKD patients and 30,9% only for stage 4 or 5. Erythropoietin supplementation was common practice for the majority of geriatricians, while only one third of them systematically used a procedure intended to prevent the contrast induced nephropathy (CIN. Finally, an alleged 50% adherence to the international guidelines for the management of CKD patients emerged from the questionnaire. Overall, results from this survey strongly recommend promoting nephrological education among geriatricians. Didactic standards for in training geriatricians need to be updated and the cooperation between geriatrics and nephrological societies promoted.

  4. A rapid assessment survey of invasive species of macrobenthic invertebrates in Korean waters

    Science.gov (United States)

    Park, Chul; Kim, Sung-Tae; Hong, Jae-Sang; Choi, Keun-Hyung

    2017-06-01

    Introduced species are a growing and imminent threat to living marine resources in parts of the world's oceans. The present study is a rapid assessment survey of invasive macrobenthic invertebrate species in Korean ports. We surveyed over 40 ports around Korea during the period of May 2010 March 2013. Among the sampling sites were concrete walls, docks and associated floats, bumpers, tires, and ropes which might harbor non-native species. We found 15 invasive species as follows: one Sponge, two Bryozoans, three Mollusks, one Polychaete, four Cirripedes, and four Ascidians. Three morphologically similar species, namely X. atrata, M. galloprovincialis, and X. securis were further examined for distinctions in their morphology. Although they could be reasonably distinguished based on shell shapes, significant overlap was noted so that additional analysis may be required to correctly distinguish them. Although many of the introduced species have already spread to all three coastal areas, newly arrived invasive species showed a relatively restricted range, with a serpulid polychaete Ficopomatus enigmaticus and a mytilid bivalve Xenostrobus securis found only at a few sites on the East Coast. An exception is for Balanus perforatus, which has rapidly colonized the East coast of Korea following its introduction into the region. Successful management of invasive macrobenthic invertebrates should be established in order to contain the spread of these newly arrived species.

  5. Small business needs assessment: a comparison of dental educators' responses with SBDC survey results.

    Science.gov (United States)

    Comer, R W; Callan, R S; Blalock, J S; Turner, J E; Trombly, R M

    2001-09-01

    A primary focus of dental education is to teach students the knowledge, skills, and values essential for practicing dentistry. However, the preparation of dentists to manage a business is frequently cited as inadequate. A survey was prepared to assess teachers' opinions of business instructional topics: challenges; desired training; employee benefits; learning resources; importance of business topics; and appropriateness of time allocations. The purpose of this project is to compare opinions of teachers of dental practice management with key management aspects reported for service businesses by the Small Business Development Center (SBDC). Practice management teachers from forty-eight (89 percent) schools responded to the survey. They indicated that several challenges confronting dentists are similar to other service businesses. Dentists, however, rank customer relations appreciably higher. In order of importance of teaching topics, the practice management teachers rank ethics and personnel management as a high priority and planning as a low priority. Awareness of the similarities and differences in the perceptions of practice management teachers and businesspeople may result in instructional improvements.

  6. Assessment of a Static Multibeam Sonar Scanner for 3d Surveying in Confined Subaquatic Environments

    Science.gov (United States)

    Moisan, E.; Charbonnier, P.; Foucher, P.; Grussenmeyer, P.; Guillemin, S.; Samat, O.; Pagès, C.

    2016-06-01

    Mechanical Scanning Sonar (MSS) is a promising technology for surveying underwater environments. Such devices are comprised of a multibeam echosounder attached to a pan & tilt positioner, that allows sweeping the scene in a similar way as Terrestrial Laser Scanners (TLS). In this paper, we report on the experimental assessment of a recent MSS, namely, the BlueView BV5000, in a confined environment: lock number 50 on the Marne-Rhin canal (France). To this aim, we hung the system upside-down to scan the lock chamber from the surface, which allows surveying the scanning positions, up to an horizontal orientation. We propose a geometric method to estimate the remaining angle and register the scans in a coordinate system attached to the site. After reviewing the different errors that impair sonar data, we compare the resulting point cloud to a TLS model that was acquired the day before, while the lock was completely empty for maintenance. While the results exhibit a bias that can be partly explained by an imperfect setup, the maximum difference is less than 15 cm, and the standard deviation is about 3.5 cm. Visual inspection shows that coarse defects of the masonry, such as stone lacks or cavities, can be detected in the MSS point cloud, while smaller details, e.g. damaged joints, are harder to notice.

  7. Teaching and assessment of communication skills in undergraduate dental education - a survey in German-speaking countries.

    Science.gov (United States)

    Rüttermann, S; Sobotta, A; Hahn, P; Kiessling, C; Härtl, A

    2017-08-01

    Teaching communication is perceived to be of importance in dental education. Several reports have been published worldwide in the educational literature describing modifications of the dental curriculum by implementing the teaching of communication skills. Surveys which evaluate the current state of training and assessment of communication skills in dental education in different countries exist already in some countries, but little information is available about German-speaking countries. In a cross-sectional study with the aim of a census, all 36 dental schools in Germany (30), Austria (3), and Switzerland (3) were surveyed. The present survey revealed that at 26 of the 34 dental schools (76%), communication skills training has been implemented. Training of communication skills mainly takes place between the 6th and the 9th semester. Ten schools were able to implement a partly longitudinal curriculum, while the other sites only offer stand-alone courses. Of the 34 dental schools, six assess communication skills in a summative way. Three of those schools also use formative assessments for their students. Another seven sites only use formative assessment. From the various formats of assessment, OSCE is mentioned most frequently. The necessity to train and assess communication skills has reached German-speaking dental schools. The present survey allows an overview of the training and assessment of communication skills in undergraduate dental education in German-speaking Europe. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  8. Graduate medical education in humanism and professionalism: a needs assessment survey of pediatric gastroenterology fellows.

    Science.gov (United States)

    Garvey, Katharine C; Kesselheim, Jennifer C; Herrick, Daniel B; Woolf, Alan D; Leichtner, Alan M

    2014-01-01

    The deterioration of humanism and professionalism during graduate medical training is an acknowledged concern, and programs are required to provide professionalism education for pediatric fellows. We conducted a needs assessment survey in a national sample of 138 first- and second-year gastroenterology fellows (82% response rate). Most believed that present humanism and professionalism education met their needs, but this education was largely informal (eg, role modeling). Areas for formal education desired by >70% included competing demands of clinical practice versus research, difficult doctor-patient relationships, depression/burnout, angry parents, medical errors, work-life balance, and the patient illness experience. These results may guide curricula to formalize humanism and professionalism education in pediatric gastroenterology fellowships.

  9. U.S. Geological Survey Methodology Development for Ecological Carbon Assessment and Monitoring

    Science.gov (United States)

    Zhu, Zhi-Liang; Stackpoole, S.M.

    2009-01-01

    Ecological carbon sequestration refers to transfer and storage of atmospheric carbon in vegetation, soils, and aquatic environments to help offset the net increase from carbon emissions. Understanding capacities, associated opportunities, and risks of vegetated ecosystems to sequester carbon provides science information to support formulation of policies governing climate change mitigation, adaptation, and land-management strategies. Section 712 of the Energy Independence and Security Act (EISA) of 2007 mandates the Department of the Interior to develop a methodology and assess the capacity of our nation's ecosystems for ecological carbon sequestration and greenhouse gas (GHG) flux mitigation. The U.S. Geological Survey (USGS) LandCarbon Project is responding to the Department of Interior's request to develop a methodology that meets specific EISA requirements.

  10. Using key informant methods in organizational survey research: assessing for informant bias.

    Science.gov (United States)

    Hughes, L C; Preski, S

    1997-02-01

    Specification of variables that reflect organizational processes can add an important dimension to the investigation of outcomes. However, many contextual variables are conceptualized at a macro unit of analysis and may not be amenable to direct measurement. In these situations, proxy measurement is obtained by treating organizational members as key informants who report about properties of the work group or organization. Potential sources of bias when using key informant methods in organizational survey research are discussed. Statistical procedures for assessment of rater-trait interaction as a type of informant bias are illustrated using data from a study in which multiple key informants were sampled to obtain proxy measurement of the organizational climate for caring among baccalaureate schools of nursing.

  11. A Survey on Terrain Assessment Techniques for Autonomous Operation of Planetary Robots

    Science.gov (United States)

    Sancho-Pradel, D. L.; Gao, Y.

    A key challenge in autonomous planetary surface exploration is the extraction of meaningful information from sensor data, which would allow a good interpretation of the nearby terrain, and a reasonable assessment of more distant areas. In the last decade, the desire to increase the autonomy of unmanned ground vehicles (UGVs), particularly in terms of off-road navigation, has significantly increased the interest in the field of automated terrain classification. Although the field is relatively new, its advances and goals are scattered across different robotic platforms and applications. The objective of this paper is to present a survey of the field from a planetary exploration perspective, bringing together the underlying techniques, existing approaches and relevant applications under a common framework. The aim is to provide a comprehensive overview to the newcomer in the field, and a structured reference for the practitioners.

  12. A survey of medical students to assess their exposure to and knowledge of renal transplantation

    Directory of Open Access Journals (Sweden)

    Weale Andrew R

    2004-12-01

    Full Text Available Abstract Background Within the field of renal transplantation there is a lack of qualified and trainee surgeons and a shortage of donated organs. Any steps to tackle these issues should, in part, be aimed at future doctors. Methods A questionnaire was distributed to final year students at a single medical school in the UK to assess their exposure to and knowledge of renal transplantation. Results Although 46% of responding students had examined a transplant recipient, only 14% had ever witnessed the surgery. Worryingly, 9% of students believed that xenotransplantation commonly occurs in the UK and 35% were unable to name a single drug that a recipient may need to take. Conclusions This survey demonstrates a lack of exposure to, and knowledge of, the field of renal transplantation. Recommendations to address the problems with the recruitment of surgeons and donation of organs, by targeting medical students are made.

  13. Quality assessment of water cycle parameters in REMO by radar-lidar synergy

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    B. Hennemuth

    2008-01-01

    Full Text Available A comparison study of water cycle parameters derived from ground-based remote-sensing instruments and from the regional model REMO is presented. Observational data sets were collected during three measuring campaigns in summer/autumn 2003 and 2004 at Richard Aßmann Observatory, Lindenberg, Germany. The remote sensing instruments which were used are differential absorption lidar, Doppler lidar, ceilometer, cloud radar, and micro rain radar for the derivation of humidity profiles, ABL height, water vapour flux profiles, cloud parameters, and rain rate. Additionally, surface latent and sensible heat flux and soil moisture were measured. Error ranges and representativity of the data are discussed. For comparisons the regional model REMO was run for all measuring periods with a horizontal resolution of 18 km and 33 vertical levels. Parameter output was every hour. The measured data were transformed to the vertical model grid and averaged in time in order to better match with gridbox model values. The comparisons show that the atmospheric boundary layer is not adequately simulated, on most days it is too shallow and too moist. This is found to be caused by a wrong partitioning of energy at the surface, particularly a too large latent heat flux. The reason is obviously an overestimation of soil moisture during drying periods by the one-layer scheme in the model. The profiles of water vapour transport within the ABL appear to be realistically simulated. The comparison of cloud cover reveals an underestimation of low-level and mid-level clouds by the model, whereas the comparison of high-level clouds is hampered by the inability of the cloud radar to see cirrus clouds above 10 km. Simulated ABL clouds apparently have a too low cloud base, and the vertical extent is underestimated. The ice water content of clouds agree in model and observation whereas the liquid water content is unsufficiently derived from cloud radar reflectivity in the present study

  14. Quality assessment of water cycle parameters in REMO by Radar-Lidar synergy

    Directory of Open Access Journals (Sweden)

    B. Hennemuth

    2007-06-01

    Full Text Available A comparison study of water cycle parameters derived from ground-based remote-sensing instruments and from the regional model REMO is presented. Observational data sets were collected during three measuring campaigns in summer/autumn 2003 and 2004 at Richard Aßmann Observatory, Lindenberg, Germany. The remote sensing instruments which were used are differential absorption lidar, Doppler lidar, ceilometer, cloud radar, and micro rain radar for the derivation of humidity profiles, ABL height, water vapour flux profiles, cloud parameters, and rain rate. Additionally, surface latent and sensible heat flux and soil moisture were measured. Error ranges and representativity of the data are discussed. For comparisons the regional model REMO was run for all measuring periods with a horizontal resolution of 18 km and 33 vertical levels. Parameter output was every hour. The measured data were transformed to the vertical model grid and averaged in time in order to better fit with gridbox model values. The comparisons show that the atmospheric boundary layer is not adequately simulated, on most days it is too shallow and too moist. This is found to be caused by a wrong partitioning of energy at the surface, particularly a too large latent heat flux. The reason is obviously an overestimation of soil moisture during drying periods by the one-layer scheme in the model. The profiles of water vapour transport within the ABL appear to be realistically simulated. The comparison of cloud cover reveals an underestimation of low-level and mid-level clouds by the model, whereas the comparison of high-level clouds is hampered by the inability of the cloud radar to see cirrus clouds above 10 km. Simulated ABL clouds apparently have a too low cloud base, and the vertical extent is underestimated. The ice water content of clouds agree in model and observation whereas the liquid water content is unsufficiently derived from cloud radar reflectivity in the present study

  15. Quality assessment of water cycle parameters in REMO by radar-lidar synergy

    Science.gov (United States)

    Hennemuth, B.; Weiss, A.; Bösenberg, J.; Jacob, D.; Linné, H.; Peters, G.; Pfeifer, S.

    2008-01-01

    A comparison study of water cycle parameters derived from ground-based remote-sensing instruments and from the regional model REMO is presented. Observational data sets were collected during three measuring campaigns in summer/autumn 2003 and 2004 at Richard Aßmann Observatory, Lindenberg, Germany. The remote sensing instruments which were used are differential absorption lidar, Doppler lidar, ceilometer, cloud radar, and micro rain radar for the derivation of humidity profiles, ABL height, water vapour flux profiles, cloud parameters, and rain rate. Additionally, surface latent and sensible heat flux and soil moisture were measured. Error ranges and representativity of the data are discussed. For comparisons the regional model REMO was run for all measuring periods with a horizontal resolution of 18 km and 33 vertical levels. Parameter output was every hour. The measured data were transformed to the vertical model grid and averaged in time in order to better match with gridbox model values. The comparisons show that the atmospheric boundary layer is not adequately simulated, on most days it is too shallow and too moist. This is found to be caused by a wrong partitioning of energy at the surface, particularly a too large latent heat flux. The reason is obviously an overestimation of soil moisture during drying periods by the one-layer scheme in the model. The profiles of water vapour transport within the ABL appear to be realistically simulated. The comparison of cloud cover reveals an underestimation of low-level and mid-level clouds by the model, whereas the comparison of high-level clouds is hampered by the inability of the cloud radar to see cirrus clouds above 10 km. Simulated ABL clouds apparently have a too low cloud base, and the vertical extent is underestimated. The ice water content of clouds agree in model and observation whereas the liquid water content is unsufficiently derived from cloud radar reflectivity in the present study. Rain rates are

  16. An assessment of the physico-chemical parameters of Oran sebkha basin

    Science.gov (United States)

    Nabila, Boualla; Ahmed, Benziane; Kacem, Moussa

    2014-12-01

    Growing populations and increasing industrialization cause increase in living standard, which result in decrease in the quality of water and may put stresses on natural waters by impairing both the quality of the water and the hydrological budget. This research aims at determining the origin of the chemical elements of groundwater from the Oran sebkha basin. It applies the inverse geochemical modeling to derive the sources of variation in the hydrochemistry by Belkhiri et al. (doi:10.1016/j.geoderma.2010.08.016, 2010). Fifty-five water samples were selected from different point in Oran sebkha basin for sampling purpose in July 2011. Physico-chemical parameters such as pH and electric conductivity were measured in situ. Moreover, chloride, sulfate, alkalinity, calcium, magnesium, sodium and potassium were measured in the laboratory. Inverse geochemical models of the statistical groups were developed using PHREEQC to elucidate the chemical reactions controlling water chemistry. The inverse geochemical modeling demonstrated that relatively few phases are required to derive water chemistry in the area. In a broad sense, the reactions responsible for the hydrochemical evolution in the area fall into three categories: (1) dissolution of evaporite minerals; (2) precipitation of carbonate minerals; and (3) weathering reactions of silicate minerals by Belkhiri et al. (doi:10.1016/j.geoderma.2010.08.016, 2010). The high values of the physico-chemical parameters of water obtained in the present study sites indicate a variation in the physico-chemical parameters demonstrated that relatively few phases are required to derive water chemistry in the area. Range of values was found as pH (5.1-7.6), conductivity (720-15,820 μS cm-1), chloride (994-7,810 mg l-1), sulfate (6.1-112.4 mg l-1), alkalinity (421-19,962 mg l-1), calcium (80-680 mg l-1), magnesium (212.4-4,525 mg l-1), sodium (124.2-4,687.4 mg l-1) and potassium (0.9-42.5 mg l-1).

  17. Quality assurance manual for the environmental survey and site assessment program, Oak Ridge Institute for Science and Education

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-21

    The purpose of this manual is to provide Program policy and oversight for the maintenance of Quality Assurance (QA) and Quality Control (QC) within the Environmental Survey and Site Assessment Program (ESSAP) of Oak Ridge Institute for Science and Education. This manual describes administrative systems, as well as specific quality control procedures, which apply to all functional groups in ESSAP. The sites surveyed under this program are primarily those where residual contamination from previous operations may pose a potential risk to the environment or to the health and safety of those in the immediate vicinity. Other major activities include environmental assessments, training related to decommissioning survey activities, effluent sampling and monitoring, special laboratory analyses, program appraisals and document reviews, consulting on environment-related topics, and technical assistance for guideline development. The methodology for performance of particular field and laboratory activities is presented in the ESSAP Survey Procedures Manual and the Laboratory Procedures Manual.

  18. Intercomparison and assessment of turbulent and physiological exchange parameters of grassland

    Directory of Open Access Journals (Sweden)

    E. Nemitz

    2009-08-01

    Full Text Available Commonly, the micrometeorological parameters that underline the calculations of surface atmosphere exchange fluxes (e.g. friction velocity and sensible heat flux and parameters used to model exchange fluxes with SVAT-type parameterisations (e.g. latent heat flux and canopy temperature are measured with a single set of instrumentation and are analysed with a single methodology. This paper evaluates uncertainties in these measurements with a single instrument, by comparing the independent results from nine different institutes during the international GRAMINAE integrated field experiment over agricultural grassland near Braunschweig, Lower Saxony, Germany. The paper discusses uncertainties in measuring friction velocity, sensible and latent heat fluxes, canopy temperature and investigates the energy balance closure at this site. Although individual 15-min flux calculations show a large variability between the instruments, when averaged over the campaign, fluxes agree within 2% for momentum and 11% for sensible heat. However, the spread in estimates of latent heat flux (λE is larger, with standard deviations of averages of 18%. The dataset averaged over the different instruments fails to close the energy budget by 20%, significantly larger than the uncertainties in the individual flux corrections. However, if the largest individual turbulent flux estimates are considered, energy closure can be achieved, indicating that the closure gap is within the spread of the measurements. The uncertainty in λE feeds results in an uncertainty in the bulk stomatal resistance, which further adds to the uncertainties in the estimation of the canopy temperature that controls the exchange. The paper demonstrated how a consensus dataset was derived, which is used by the individual investigators to calculate fluxes and drive their models.

  19. Intercomparison and assessment of turbulent and physiological exchange parameters of grassland

    Directory of Open Access Journals (Sweden)

    E. Nemitz

    2009-01-01

    Full Text Available Commonly, the micrometeorological parameters that underline the calculations of surface atmosphere exchange fluxes (e.g. friction velocity and sensible heat flux and parameters used to model exchange fluxes with SVAT-type parameterisations (e.g. latent heat flux and canopy temperature are measured with a single set of instrumentation and are analysed with a single methodology. This paper evaluates uncertainties in these measurements with a single instrument, by comparing the independent results from nine different institutes during the international GRAMINAE integrated field experiment over agricultural grassland near Braunschweig, Lower Saxony, Germany. The paper discusses uncertainties in measuring friction velocity, sensible and latent heat fluxes, canopy temperature and investigates the energy balance closure at this site. Although individual 15-min flux calculations show a large variability between the instruments, when averaged over the campaign, fluxes agree within 2% for momentum and 11% for sensible heat. However, the spread in estimates of latent heat flux (λE is larger, with standard deviations of averages of 18%. While the dataset averaged over the different instruments fails to close the energy budget by 30%, if the largest turbulent fluxes are considered, near perfect energy closure can be achieved, suggesting that most techniques underestimate λE in particular. The uncertainty in λE feeds results in an uncertainty in the bulk stomatal resistance, which further adds to the uncertainties in the estimation of the canopy temperature that controls the exchange. The paper demonstrated how a consensus dataset was derived, which is used by the individual investigators to calculate fluxes and drive their models.

  20. Optical assessment of intravascular and intracellular parameters related to tissue viability

    Science.gov (United States)

    Mayevsky, Avraham; Sherman, Efrat; Cohen-Kashi, Meir; Dekel, Nava; Pewzner, Eliyahu

    2007-02-01

    Tissue viability represents the balance between O II supply and demand. In our previous paper (Mayevsky et al; Proc.SPIE 6083 : z1-z10, 2006) the HbO II was added to the multiparametric tissue spectroscope (Mayevsky et al J.Biomedical Optics 9:1028-1045,2004). This parameter provides relative values of microcirculatory blood oxygenation (MC-HbO II) evaluated by the 2 wavelength reflectometry principle. The advantage of this approach as compared to pulse oximetry is that the measurement is not dependent of the existence of the pulse of the heart. Also in the MC-HbO II the information is collected from small vessels providing O II to the mitochondria as compared to the pulse oximeter indicating blood oxygenation by the respiratory and cardiovascular systems. In the present study we compared the level of blood oxygenation measured by the pulse oximeter to that measured by the CritiView in the brain exposed to various systemic and localized perturbations of O II supply or demand. We exposed gerbils to anoxia, hypoxia, ischemia and terminal anoxia. In addition we measured mitochondrial NADH (surface fluorometry), tissue reflectance, tissue blood flow (laser Doppler flowmetry) from the same site of MC-HbO II measurement. A clear connection was found between the two blood oxygenation parameters only when systemic perturbations were used (anoxia, hypoxia and terminal anoxia). Under local events (ischemia) the MC-HbO II was responsive while the systemic oxygenation was unchanged. We concluded that MC-HbO II has a significant value in interpretation of tissue energy metabolism under pathophysiological conditions.