WorldWideScience

Sample records for augmented fish health

  1. Augmented fish health monitoring

    International Nuclear Information System (INIS)

    The Bonneville Power Administration (BPA) initiated the Augmented Fish Health Monitoring project in 1986. This project was a five year interagency project involving fish rearing agencies in the Columbia Basin. Historically, all agencies involved with fish health in the Columbia Basin were conducting various levels of fish health monitoring, pathogen screening and collection. The goals of this project were; to identify, develop and implement a standardized level of fish health methodologies, develop a common data collection and reporting format in the area of artificial production, evaluate and monitor water quality, improve communications between agencies and provide annual evaluation of fish health information for production of healthier smolts. This completion report will contain a project evaluation, review of the goals of the project, evaluation of the specific fish health analyses, an overview of highlights of the project and concluding remarks. 8 refs., 1 fig., 4 tabs

  2. Augmented Fish Health Monitoring, 1988 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Warren, James W.

    1989-08-15

    Augmented Fish Health Monitoring Contract AI79-87BP35585 was implemented on July 20, 1987. Second year activities focused on full implementation of disease surveillance activities and histopathological support services to participating state agencies. Persistent and sometimes severe disease losses were caused by infectious hematopoietic necrosis (IHN) in summer steelhead trout in Idaho and in spring chinook salmon at hatcheries on the lower Columbia River. Diagnostic capability was enhanced by the installation, for field use, of enzyme-linked immunosorbent assay (ELISA) technology at the Dworshak Fish Health Center for the detection and assay of bacterial kidney disease and by a dot-blot'' training session for virus identification at the Lower Columbia Fish Health Center. Complete diagnostic and inspection services were provided to 13 Columbia River basin National Fish hatcheries. Case history data was fully documented in a computerized data base for storage and analysis. This report briefly describes work being done to meet contract requirements for fish disease surveillance at Service facilities in the Columbia River basin. It also summarizes the health status of fish reared at those hatcheries and provides a summary of case history data for calendar year 1988. 2 refs., 4 tabs.

  3. Augmented Fish Health Monitoring, 1990 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Warren, James W.

    1990-08-15

    Augmented Fish Health Monitoring Contract AI79-87BP35585 was implemented on July 20, 1987. This report briefly describes third-year work being done to meet contract requirements for fish disease surveillance at Service facilities in the Columbia River basin and for histopathological support services provided to participating state agencies. It also summarizes the health status of fish reared at participating Service hatcheries and provides a summary of case history data for calendar year 1989. Items of note included severe disease losses to infectious hematopoietic necrosis (IHN) in summer steelhead trout in Idaho, the detection of IHN virus in juvenile spring chinook salmon at hatcheries on the lower Columbia River, and improved bacterial kidney disease (BKD) detection and adult assay by enzyme-linked immunosorbent assay (ELISA) technology at the Dworshak Fish Health Center. Complete diagnostic and inspection services were provided to 13 Columbia River Basin National Fish Hatcheries. Case history data was fully documented in a computerized data base for storage and analysis and is summarized herein. 2 refs., 1 fig., 4 tabs.

  4. Augmented Fish Health Monitoring in Idaho, 1992 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Munson, A.Douglas

    1993-12-01

    This report documents the progress of Idaho Department of Fish and Game`s fish health monitoring during the past five years and will serve as a completion report for the Augmented Fish Health Monitoring Project. Anadromous fish at twelve IDFG facilities were monitored for various pathogens and organosomatic analyses were performed to anadromous fish prior to their release. A fish disease database has been developed and data is presently being entered. Alternate funding has been secured to continue fish health monitoring.

  5. Augmented Fish Health Monitoring; Volume I of II, Completion Report.

    Energy Technology Data Exchange (ETDEWEB)

    Michak, Patty

    1991-05-01

    The Bonneville Power Administration (BPA) initiated the Augmented Fish Health Monitoring project in 1986. This project was a five year interagency project involving fish rearing agencies in the Columbia Basin. Historically, all agencies involved with fish health in the Columbia Basin were conducting various levels of fish health monitoring, pathogen screening and collection. The goals of this project were; to identify, develop and implement a standardized level of fish health methodologies, develop a common data collection and reporting format in the area of artificial production, evaluate and monitor water quality, improve communications between agencies and provide annual evaluation of fish health information for production of healthier smolts. This completion report will contain a project evaluation, review of the goals of the project, evaluation of the specific fish health analyses, an overview of highlights of the project and concluding remarks. 8 refs., 1 fig., 4 tabs.

  6. Augmented Fish Health Monitoring, 1987-1988 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Warren, James W.

    1988-08-01

    Augmented Fish Health Monitoring Contract DE-AI79-87BP35585 was implemented on July 20, 1987. First year highlights included remodeling of the Olympia (WA) Fish Health Center to provide laboratory space for histopathological support services to participating state agencies, acquisition of gas monitoring equipment for hatchery water systems, expanded disease detection work for bacterial kidney disease and erythrocytic inclusion body syndrome in fish stocks at 13 Columbia River Basin National Fish Hatcheries and advancements in computerized case history data storage and analysis. This report summarizes the health status of fish reared at Service facilities in the Columbia River basin, briefly describes work being done to meet contract requirements for fish disease surveillance at those hatcheries and provides a summary of case history data for calendar years 1984, 1985, 1986 and 1987. 1 ref.

  7. State of Idaho Augmented Anadromous Fish Health Monitoring, 1988 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Foott, J. Scott; Hauch, A. Kent

    1989-05-01

    This report documents the progress in the assigned tasks which have occurred during the second year of the Augmented Anadromous Fish Health Monitoring Project. Fish at seven Idaho Department of Fish and Game facilities were monitored for various pathogens and organosomatic analyses were performed on smolts prior to their release in the Spring of 1989. A disease database has been developed and facility impediments to fish health have been identified.

  8. Augmented Fish Health Monitoring in Oregon, 1987-1988 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Bauer, Jerry

    1988-05-01

    Diminished natural fish production in the Columbia River Basin has prompted increased artificial propagation to compensate both for losses of anadromous salmonids related to hydroelectric facilities and for other causes. The health and quality of artificially propagated smolts probably is a major influence on survival. Smolt survival varies greatly from one location to another, among different species and from one year to the next. Fish health monitoring is necessary to identify cause of mortality, assist in producing a healthy smolt, and provide a means for improving hatchery effectiveness. The Bonneville Power Administration (BPA) conducted a series of meetings to define the minimum ''needed'' level of fish health monitoring, determine what was presently being done and what additional effort was needed in the Basin's 54 anadromous fish hatcheries. Funding for the additional effort in Oregon began June 2, 1987. The goal of this project is to increase smolt-to-adult survival by accomplishing the following: (1) increase monitoring for specific fish pathogens and fish health parameters; (2) measure hatchery water supply quality; (3) identify facility impediments to fish health; (4) create a database of hatchery and fish health information; (5) establish a technical steering committee to evaluate and refine the project annually; and (6) increase communication and technology application among personnel in hatcheries, research, management, other agencies and the public. 4 refs., 3 figs., 10 tabs.

  9. State of Idaho Augmented Anadromous Fish Health Monitoring, 1987 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Foott, J. Scott; Hauck, A. Kent

    1988-05-01

    The anadromous fish health monitoring program began in full operation in January 1988 after the hiring of the lead pathologist. This short operating period limits the amount of information available at the time of this writing. Pre-release sampling of smolts revealed the presence of several sub-clinical pathogens. Organosomatic analysis results demonstrated no major abnormalities in the examined stocks. The results of the 1988 steelhead broodstock sampling are still pending.

  10. Augmented Fish Health Monitoring for Washington Department of Wildlife; Five-year Project Report, 1986-1991 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    Kerwin, John; Roberts, Steve; Oman, Leni; Bolding, Bruce

    1992-04-01

    The Augmented Fish Health Monitoring Project was funded by the Bonneville Power Administration (BPA) with the mandate to collect fish health data on the anadromous fish stocks of the Columbia River Basin in a standardized manner. The Washington Department of Wildlife began the project in 1986. Cumulative data and a final summary for this project are presented in this document. Fish stocks were examined monthly for length, weight, and health status at all Washington Department of Wildlife Columbia River Basin hatcheries. Assays for specific fish pathogens were conducted on all stocks of broodfish and smolts in the study area. Pathogens of interest were replicating viral agents, erythrocytic inclusion body syndrome virus (EIBSV), and Renibacterium salmoninarum. Sea-run cutthroat (SCT) were also sampled midway through the rearing cycle for R. salmoninarum. Juvenile fish were examined for the presence of any pathogen. Assays for Myxobolus cerebralis were conducted on fish stocks in several locations along the Columbia River. An organosomatic index analysis was made on each stock of smolts at the Cowlitz and Wells hatcheries. Results of the organosomatic index analysis were consistent between the years at each facility. However, the fish reared at Cowlitz displayed tissue changes associated with ceratomyxosis while those reared at Wells had a more desirable color and quality. Cell culture assays for viral agents in broodfish were positive for infectious hematopoeitic necrosis virus (IHNV) in all stocks at the Cowlitz Hatchery four out of five years in the study. Other stations were less consistent over the years. Only the sea-run cutthroat stock spawned at Beaver Creek was negative for any virus. Infectious pancreatic necrosis virus (IPNV) was isolated from summer-run steelhead (SS) broodfish at Wells in 1989 and 1991 and at Yakima in 1991. Inclusions that are characteristic of EIBSV were found in red blood cells of brood fish from the Wells Hatchery in 1990 and 1991

  11. Fish Health Management

    Science.gov (United States)

    For commercial success, a recirculating aquaculture operation must maintain fish at densities far greater than normally found in nature. At the same time, the producer must maintain an environment that supports good fish health. This chapter discusses various aspects of fish health management, inclu...

  12. An augmented lagrangian fish swarm based method for global optimization

    OpenAIRE

    Ana Maria A C Rocha; Martins, Tiago F. M. C.; Fernandes, Edite Manuela da G. P.

    2011-01-01

    This paper presents an augmented Lagrangian methodology with a stochastic population based algorithm for solving nonlinear constrained global optimization problems. The method approximately solves a sequence of simple bound global optimization subproblems using a fish swarm intelligent algorithm. A stochastic convergence analysis of the fish swarm iterative process is included. Numerical results with a benchmark set of problems are shown, including a comparison with other st...

  13. Fish health and fish quality

    DEFF Research Database (Denmark)

    Ingerslev, Hans-Christian

    Aquaculture is an expanding worldwide industry producing an increasing amount of fish every year. The quality of the fish meat is dependent upon many biological and non-biological factors. Infectious diseases are known to cause bleedings and damage of the muscle tissue that may lead to scarring...... are poorly described in fish. The present work in this thesis focused on: 1) examination of potential changes in the quality regarding texture of the muscle tissue in rainbow trout (Oncorhynchus mykiss) after previous infection with the bacterial pathogens Yersinia ruckeri and Vibrio anguillarum; 2...... of these studies showed that previous infections by Yersinia ruckeri and Vibrio anguillarum gave rise to subsequent changes regarding textural quality parameters in fresh fish meat, while no differences were seen for cold-smoked meat from the same fish. The texture in previous infected fish was less flaky and less...

  14. Aircraft Control Augmentation and Health Monitoring Using FADS Technology Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This Phase I research proposal is aimed at demonstrating the feasibility of an innovative architecture comprising control augmentation and on-line health monitoring...

  15. Augmenting health care failure modes and effects analysis with simulation

    DEFF Research Database (Denmark)

    Staub-Nielsen, Ditte Emilie; Dieckmann, Peter; Mohr, Marlene;

    2014-01-01

    This study explores whether simulation plays a role in health care failure mode and effects analysis (HFMEA); it does this by evaluating whether additional data are found when a traditional HFMEA is augmented with simulation. Two multidisciplinary teams identified vulnerabilities in a process by ...

  16. Future Trends of Virtual, Augmented Reality, and Games for Health

    OpenAIRE

    Ma, Minhua; Jain, Lakhmi C; Anderson, Paul

    2014-01-01

    Serious game is now a multi-billion dollar industry and is still growing steadily in many sectors. As a major subset of serious games, designing and developing Virtual Reality (VR), Augmented Reality (AR), and serious games or adopting off-the-shelf games to support medical education, rehabilitation, or promote health has become a promising frontier in the healthcare sector since 2004, because games technology is inexpensive, widely available, fun and entertaining for people of all ages, with...

  17. Fish and fish oil in health promotion and disease prevention

    Science.gov (United States)

    Fish is an important dietary component due to its contribution of valuable nutrients. In addition to the high quality protein and micronutrients provided, fish is the primary source of long-chain omega-3 fatty acids which are found in oils of ‘fatty’ cold water fish. Biomedical evidence supports th...

  18. Augmentation and reduction mammaplasty: demographic and obstetric differences in women attending a National Health Service clinic.

    OpenAIRE

    Birtchnell, S.; Lacey, J H

    1988-01-01

    Women presenting for breast augmentation and breast reduction to a National Health Service plastic surgery/psychiatry liaison clinic appear to differ beyond the anatomical. Those requesting breast reduction tend to be younger, unmarried and not to have been pregnant and may be uncomfortable with adult sexuality. Those requesting breast augmentation are presenting for surgery in their mid-thirties although many have always had small breasts. This is at a time of fading attractiveness, marital ...

  19. Treatment of textile effluent in a developed phytoreactor with immobilized bacterial augmentation and subsequent toxicity studies on Etheostoma olmstedi fish

    International Nuclear Information System (INIS)

    Graphical abstract: - Highlights: • A phytoreactor was developed and augmented with immobilized bacteria. • This consortium showed enhanced treatment than the individual species. • Oxido-reductases from P. crinitum and B. pumilus could decolorize the effluent. • Characterization of effluent samples endorsed the efficacy of consortial strategy. • Toxicity studies revealed the less toxic nature of the consortium treated effluent. - Abstract: A static hydroponic bioreactor using nursery grown plants of Pogonatherum crinitum along with immobilized Bacillus pumilus cells was developed for the treatment of textile wastewater. Independent reactors with plants and immobilized cells were also kept for performance and efficacy evaluation. The effluent samples characterized before and after their treatment showed that the plant–bacterial consortium reactor was more efficient than those of individual plant and bacterium reactors. COD, BOD, ADMI, conductivity, turbidity, TDS and TSS of the textile effluent was found to be reduced by 78, 70, 93, 4, 90, 13 and 70% respectively within 12 d by the consortial set. HPTLC analysis revealed the transformation of the textile effluent to new products. The phytotoxicity study on Phaeseolus mungo and Sorghum vulgare seeds showed reduced toxicity of treated effluents. The animal toxicity study performed on Etheostoma olmstedi fishes showed the toxic nature of untreated effluent giving extreme stress to fishes leading to death. Histology of fish gills exposed to treated effluent was found to be less affected. The oxidative stress related enzymes like superoxide dismutase and catalase were found to show decreased activities and less lipid peroxidation in fishes exposed to treated effluent

  20. Treatment of textile effluent in a developed phytoreactor with immobilized bacterial augmentation and subsequent toxicity studies on Etheostoma olmstedi fish

    Energy Technology Data Exchange (ETDEWEB)

    Watharkar, Anuprita D. [Department of Biotechnology, Shivaji University, Kolhapur (India); Khandare, Rahul V. [School of Life Sciences, North Maharashtra University, Jalgaon (India); Waghmare, Pankajkumar R.; Jagadale, Ashwini D.; Govindwar, Sanjay P. [Department of Biochemistry, Shivaji University, Kolhapur (India); Jadhav, Jyoti P., E-mail: jpj_biochem@unishivaji.ac.in [Department of Biotechnology, Shivaji University, Kolhapur (India); Department of Biochemistry, Shivaji University, Kolhapur (India)

    2015-02-11

    Graphical abstract: - Highlights: • A phytoreactor was developed and augmented with immobilized bacteria. • This consortium showed enhanced treatment than the individual species. • Oxido-reductases from P. crinitum and B. pumilus could decolorize the effluent. • Characterization of effluent samples endorsed the efficacy of consortial strategy. • Toxicity studies revealed the less toxic nature of the consortium treated effluent. - Abstract: A static hydroponic bioreactor using nursery grown plants of Pogonatherum crinitum along with immobilized Bacillus pumilus cells was developed for the treatment of textile wastewater. Independent reactors with plants and immobilized cells were also kept for performance and efficacy evaluation. The effluent samples characterized before and after their treatment showed that the plant–bacterial consortium reactor was more efficient than those of individual plant and bacterium reactors. COD, BOD, ADMI, conductivity, turbidity, TDS and TSS of the textile effluent was found to be reduced by 78, 70, 93, 4, 90, 13 and 70% respectively within 12 d by the consortial set. HPTLC analysis revealed the transformation of the textile effluent to new products. The phytotoxicity study on Phaeseolus mungo and Sorghum vulgare seeds showed reduced toxicity of treated effluents. The animal toxicity study performed on Etheostoma olmstedi fishes showed the toxic nature of untreated effluent giving extreme stress to fishes leading to death. Histology of fish gills exposed to treated effluent was found to be less affected. The oxidative stress related enzymes like superoxide dismutase and catalase were found to show decreased activities and less lipid peroxidation in fishes exposed to treated effluent.

  1. STREPTOCOCCUS: A WORLDWIDE FISH HEALTH PROBLEM

    Science.gov (United States)

    Streptococcus iniae and S. agalactiae are important emergent pathogens that affect many fish species worldwide, especially in warm-water regions. In marine and freshwater systems, these Gram-positive bacteria cause significant economic losses, estimated at hundreds of millions of dollars annually. ...

  2. Benefits and risks of fish consumption for the human health

    Directory of Open Access Journals (Sweden)

    Ana Carolina Fernandes

    2012-04-01

    Full Text Available The article aimed at identifying and discussing scientific evidences on the benefits and risks of fish consumption the human health. There was a systematic survey for articles published from 2003 and May 2011, at the MedLine, Scopus, SciELO, Lilacs and Google Scholar databases. The key words used were: fish, food intake, omega-3 fatty acids, fatty fish, benefits, risk, and consumption. The search produced 12,632 articles, 25 eligible cohort studies on possible benefits, 61 on risks and 10 studies that assessed the "risk/benefit" relation. Of the 25 works, 14 suggested a preventive effect of fish consumption related to cardiovascular diseases, depression, cataract and some types of cancer. Evidences of a relation between exposure to mercury and an increase in the risk of neurological disorders, but not of cardiovascular diseases, were also found. Given the importance of fish consumption, its possible risks and the lack of Brazilian studies on the topic, it is important to conduct more longitudinal studies that assess both the benefits and risks of fish consumption for the human health. We also emphasize the need for policies to reduce exposure of fish and seafood to mercury and other contaminants.

  3. Applying Selective Breeding And Vaccination To Improve Fish Health

    Science.gov (United States)

    Infectious disease causes substantial economic loss in aquaculture. In an effort to reduce loss, selective breeding of animals with superior disease resistance is being increasingly utilized as a component within fish health management plans. Selective breeding is especially applicable to salmonid ...

  4. Health Categorisation of Fish Farms in Europe In 2011

    DEFF Research Database (Denmark)

    Olesen, Niels Jørgen; Nicolajsen, Nicole

    2012-01-01

    The Questionnaire on Surveillance and Diagnosis (S&D) included questions on how fish farms are health categorised according to Council Directive 2006/88/EC in the respective countries. More than half of the authorised farms in Europe are in category III for VHS and IHN and the remaining in category...

  5. Evaluating and understanding fish health risks and their consequences in propagated and free-ranging fish populations

    Science.gov (United States)

    Moffitt, C.M.; Haukenes, A.H.; Williams, C.J.

    2005-01-01

    Fishery managers and resource conservationists are increasingly interested in understanding the fish health and disease risks of free-ranging fishes and whether propagated fishes or features and practices used at fish culture facilities pose a health risk to free-ranging populations. Disease agents are present in most both captive and all free-ranging fish populations, but the consequences and extent of infections in free-ranging populations are often difficult to measure, control, and understand. Sampling methods, protocols, and assay techniques developed to assess the health of captive populations are not as applicable for assessments of free-ranging fishes. The use of chemicals and therapeutics to control diseases and parasites in propagated fishes likely reduces the risk of introducing specific pathogens into the environment, but control measures may have localized effects on the environment surrounding fish culture facilities. To understand health risks of propagated and free ranging fishes, we must consider fish populations, culture facilities, fish releases, and their interactions within the greater geospatial features of the aquatic environment. ?? 2004 by the American Fisheries Society.

  6. Are fish eaters healthier and do they consume less health-care resources?

    DEFF Research Database (Denmark)

    Hostenkamp, Gisela; Sørensen, Jan

    2010-01-01

    Objective: Regular dietary intake of fish is associated with reduced risk of developing cardiovascular and other chronic diseases, and may improve general well-being. If fish eaters are healthier, they may use fewer health-care resources. The present study aimed to describe the reported intake of...... fish and fish products in a Danish general population, and to investigate whether fish consumption is associated with generic measures of self-reported health and consumption of health-care resources. Design: Data on eating patterns and health status for 3422 Danish adults were obtained by telephone...... interview in the Funen County Health Survey. These data were merged with individual-level register data on health-care utilisation. Survey respondents were categorised into those consuming fish at least once weekly (fish eaters) and those consuming fish less frequently (non-fish eaters). Results: People who...

  7. Towards Integration of Environmental and Health Impact Assessments for Wild Capture Fishing and Farmed Fish with Particular Reference to Public Health and Occupational Health Dimensions

    Directory of Open Access Journals (Sweden)

    Andrew Watterson

    2008-12-01

    Full Text Available The paper offers a review and commentary, with particular reference to the production of fish from wild capture fisheries and aquaculture, on neglected aspects of health impact assessments which are viewed by a range of international and national health bodies and development agencies as valuable and necessary project tools. Assessments sometimes include environmental health impact assessments but rarely include specific occupational health and safety impact assessments especially integrated into a wider public health assessment. This is in contrast to the extensive application of environmental impact assessments to fishing and the comparatively large body of research now generated on the public health effects of eating fish. The value of expanding and applying the broader assessments would be considerable because in 2004 the United Nations Food and Agriculture Organization reports there were 41,408,000 people in the total ‘fishing’ sector including 11,289,000 in aquaculture. The paper explores some of the complex interactions that occur with regard to fishing activities and proposes the wider adoption of health impact assessment tools in these neglected sectors through an integrated public health impact assessment tool.

  8. Assessing potential health risks to fish and humans using mercury concentrations in inland fish from across western Canada and the United States

    Science.gov (United States)

    Lepak, Jesse M; Hooten, Mevin B.; Eagles-Smith, Collin A.; Tate, Michael T.; Lutz, Michelle A.; Ackerman, Joshua T.; Willacker, James J.; Jackson, Allyson K.; Evers, David C.; Wiener, James G.; Pritz, Colleen Flanagan; Davis, Jay

    2016-01-01

    Fish represent high quality protein and nutrient sources, but Hg contamination is ubiquitous in aquatic ecosystems and can pose health risks to fish and their consumers. Potential health risks posed to fish and humans by Hg contamination in fish were assessed in western Canada and the United States. A large compilation of inland fish Hg concentrations was evaluated in terms of potential health risk to the fish themselves, health risk to predatory fish that consume Hg contaminated fish, and to humans that consume Hg contaminated fish. The probability that a fish collected from a given location would exceed a Hg concentration benchmark relevant to a health risk was calculated. These exceedance probabilities and their associated uncertainties were characterized for fish of multiple size classes at multiple health-relevant benchmarks. The approach was novel and allowed for the assessment of the potential for deleterious health effects in fish and humans associated with Hg contamination in fish across this broad study area. Exceedance probabilities were relatively common at low Hg concentration benchmarks, particularly for fish in larger size classes. Specifically, median exceedances for the largest size classes of fish evaluated at the lowest Hg concentration benchmarks were 0.73 (potential health risks to fish themselves), 0.90 (potential health risk to predatory fish that consume Hg contaminated fish), and 0.97 (potential for restricted fish consumption by humans), but diminished to essentially zero at the highest benchmarks and smallest fish size classes. Exceedances of benchmarks are likely to have deleterious health effects on fish and limit recommended amounts of fish humans consume in western Canada and the United States. Results presented here are not intended to subvert or replace local fish Hg data or consumption advice, but provide a basis for identifying areas of potential health risk and developing more focused future research and monitoring efforts.

  9. Towards integration of environmental and health impact assessments for wild capture fishing and farmed fish with particular reference to public health and occupational health dimensions

    OpenAIRE

    Andrew Watterson; David Little; Kathleen Boyd; Young, James A.; Ekram Azim; Francis Murray

    2008-01-01

    The paper offers a review and commentary, with particular reference to the production of fish from wild capture fisheries and aquaculture, on neglected aspects of health impact assessments which are viewed by a range of international and national health bodies and development agencies as valuable and necessary project tools. Assessments sometimes include environmental health impact assessments but rarely include specific occupational health and safety impact assessments especially integrated ...

  10. Environmental health impacts of feeding crops to farmed fish.

    Science.gov (United States)

    Fry, Jillian P; Love, David C; MacDonald, Graham K; West, Paul C; Engstrom, Peder M; Nachman, Keeve E; Lawrence, Robert S

    2016-05-01

    Half of the seafood consumed globally now comes from aquaculture, or farmed seafood. Aquaculture therefore plays an increasingly important role in the global food system, the environment, and human health. Traditionally, aquaculture feed has contained high levels of wild fish, which is unsustainable for ocean ecosystems as demand grows. The aquaculture industry is shifting to crop-based feed ingredients, such as soy, to replace wild fish as a feed source and allow for continued industry growth. This shift fundamentally links seafood production to terrestrial agriculture, and multidisciplinary research is needed to understand the ecological and environmental health implications. We provide basic estimates of the agricultural resource use associated with producing the top five crops used in commercial aquaculture feed. Aquaculture's environmental footprint may now include nutrient and pesticide runoff from industrial crop production, and depending on where and how feed crops are produced, could be indirectly linked to associated negative health outcomes. We summarize key environmental health research on health effects associated with exposure to air, water, and soil contaminated by industrial crop production. Our review also finds that changes in the nutritional content of farmed seafood products due to altered feed composition could impact human nutrition. Based on our literature reviews and estimates of resource use, we present a conceptual framework describing the potential links between increasing use of crop-based ingredients in aquaculture and human health. Additional data and geographic sourcing information for crop-based ingredients are needed to fully assess the environmental health implications of this trend. This is especially critical in the context of a food system that is using both aquatic and terrestrial resources at unsustainable rates. PMID:26970884

  11. Nutrients and Chemical Pollutants in Fish and Shellfish. Balancing Health Benefits and Risks of Regular Fish Consumption.

    Science.gov (United States)

    Domingo, José L

    2016-01-01

    Dietary patterns and lifestyle factors are clearly associated with at least five of the ten leading causes of death, including coronary heart disease, certain types of cancer, stroke, non-insulin insulin-dependent diabetes mellitus, and atherosclerosis. Concerning specifically fish and seafood consumption, its beneficial health effects in humans are clearly supported by an important number of studies performed in the last 30 years. These studies have repeatedly linked fish consumption, especially those species whose contents in omega-3 fatty acids are high, with healthier hearts in the aging population. The nutritional benefits of fish and seafood are also due to the content of high-quality protein, vitamins, as well as other essential nutrients. However, a number of studies, particularly investigations performed in recent years, have shown that the unavoidable presence of environmental contaminants in fish and shellfish can also mean a certain risk for the health of some consumers. While prestigious international associations as the American Heart Association have recommended eating fish at least two times (two servings a week), based on our own experimental results, as well as in results from other laboratories, we cannot be in total agreement with that recommendation. Although a regular consumption of most fish and shellfish species should not mean adverse health effects for the consumers, the specific fish and shellfish species consumed, the frequency of consumption, as well as the meal size, are essential issues for adequately balancing the health benefits and risks of regular fish consumption. PMID:25486051

  12. Fish Health and Fisheries, Implications for Stock Assessment and Management: The Mediterranean Example

    OpenAIRE

    Lloret, J; FALIEX E.; SHULMAN G.e.; RAGA J.-A.; Sasal, P.; Muñoz, M; Casadevall, M; AHUIR-BARAJA A. E.; Montero, F. E.; REPULLÉS-ALBELDA A.; Cardinale, Massimiliano; RAETZ Hans-Joachim; S. Vila; FERRER D.

    2012-01-01

    Although fish health may influence key population-level processes, particularly those dealing with natural mortality, reproduction and growth, which in turn affect stock productivity, there has been little emphasis on the links between fish health and management of marine fisheries. This paper addresses this gap and illustrates how knowledge of fish health provides insight to marine fisheries biologists, stock assessment modellers and managers. The study demonstrates ways in which the conside...

  13. The Road Inventory of Eagle Fish Health Laboratory

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — To determine the relative needs of the U.S. Fish and Wildlife Service, the Federal Highway Administration FHWA was asked to inventory all public access and...

  14. St Lucie Rod and Reel Fish Health Study

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data provide presence/absence of gross abnormalities on individual fish, identified to species, to allow calculation of the proportion of fish caught that had...

  15. Fish Health Studies Associated with the Kingston Fly Ash Spill, Spring 2009 - Fall 2010

    Energy Technology Data Exchange (ETDEWEB)

    Adams, Marshall [ORNL; Fortner, Allison M [ORNL

    2012-05-01

    On December 22, 2008, over 4 million cubic meters of fly ash slurry was released into the Emory River when a dike surrounding a solid waste containment area at the Tennessee Valley Authority's (TVA) Kingston Fossil Plant ruptured. One component of TVA's response to the spill is a biological monitoring program to assess short- and long-term ecological responses to the ash and associated chemicals, including studies on fish health and contaminant bioaccumulation. These studies were initiated in early Spring 2009 for the purposes of: (1) documenting the levels of fly ash-associated metals in various tissues of representative sentinel fish species in the area of the fly ash spill, (2) determining if exposure to fly ash-associated metals causes short, intermediate, or long-term health effects on these sentinel fish species, (3) assessing if there are causal relationships between exposure to metals and health effects on fish, (4) evaluating, along with information from other ecological and physicochemical studies, the nature and route of contaminant transfer though food chains into higher level consumers, (5) providing important information for the Ecological Risk Assessment (ERA) for the Kingston fly ash project, and (6) serving as an important technology information transfer or model study focused on how to best evaluate the environmental effects of fly ash (and related environmental stressors), not only at the Kingston site, but also at sites on other aquatic systems where coal-fired generating stations are located. This report presents the results of the first two years of the fish health study. To date, fish health and bioaccumulation studies have been conducted from Spring 2009 though Fall 2011 and includes 6 seasonal studies: Spring 2009, Fall 2009, Spring 2010, Fall 2010, Spring 2011, and Fall 2011. Both the Spring and Fall studies have focused on 3-4 sentinel fish species that represent different feeding habits, behaviors, and home ranges. In addition

  16. Helminth communities of fish as ecological indicators of lake health.

    Science.gov (United States)

    Shah, Humaira Bashir; Yousuf, A R; Chishti, M Z; Ahmad, Fayaz

    2013-03-01

    This paper deals largely with the dynamics and changes in the helminth parasite communities of fish along the trophic gradient of lakes. The use of parasitological community data as a bioindicator of environmental health underlines the need to study parasite communities at comparable localities with known pollution levels. The comparison of the conditions in different habitats might be helpful to differentiate between normal fluctuations in ambient conditions and pollution-mediated effects. Therefore, the present study was designed to examine the community structure of parasites in snow trout (Schizothorax niger Heckel) inhabiting 3 lakes of contrasting trophic status in Kashmir. The idea of selecting the lakes, namely Anchar (strongly hypereutrophic), Dal (eutrophic) and Manasbal (mesotrophic) for this study was intentional as they depict different trophic gradients and exhibit the desirable pattern which was a prerequisite for this study. The findings presented in this article suggest an apparent lake-wise gradient in community structure, as the increase in trematode and cestode infections in Anchar was markedly greater, to levels clearly distinguishable from those in the other two water bodies. We conclude that human-induced eutrophication of lakes modifies the parasite community at component level and community-level studies on parasites may provide information on health status of lakes. PMID:23127258

  17. Fish Allergy

    Science.gov (United States)

    ... Story" 5 Things to Know About Zika & Pregnancy Fish Allergy KidsHealth > For Parents > Fish Allergy Print A ... From Home en español Alergia al pescado About Fish Allergy A fish allergy is not exactly the ...

  18. Impacts of species introductions on the health of fish communities receiving chronic radionuclide inputs

    International Nuclear Information System (INIS)

    There is widespread interest in gaining further understanding of the relative influences of multiple stressors on aquatic ecosystem structure and function. To address this, work has been done to evaluate the effects of the introduction of an efficient predator (northern pike) on a fish community in a small lake (Perch Lake, Chalk River, Ontario) receiving chronic inputs of radionuclides over a 50-year period. In general, large changes in fish community structure, with corresponding changes in fish health, occurred following the pike introduction. For example, several forage fish species were extirpated from the lake and densities of the past top predator, yellow perch, became greatly reduced, likely due to predation by northern pike and/or other species in the lake. The reduced perch numbers appeared to alleviate an ecological bottleneck, which resulted in significant increases in brown bullhead densities to levels that were much higher than observed in other water bodies under typical conditions. Corresponding changes in the health of the Perch Lake fish community could also be detected, and included decreased fish diversity, shifts in fish community size structure to smaller body sizes, significant reductions in fish condition factors, reduced hepato-somatic indices, depletion of fish internal fat reserves, hardening of the gastrointestinal tract, resorption of gonadal material, degradation of muscle tissue, emaciation and ultimately, mortality of northern pike and brown bullheads. Evaluation of data indicated that female fishes responded more quickly than did males in terms of condition loss, likely due to their higher energetic requirements. In addition, although pike and bullheads were detrimentally affected by the pike introduction, health of forage fish species, such as pumpkinseeds, did not appear to be greatly influenced. No clear relationships existed between fish community health and exposure to radionuclides in the lake. (author)

  19. Leptospira infections in freshwater fish in Morogoro Tanzania: a hidden public health threat.

    Science.gov (United States)

    Mgode, Georgis F; Mhamphi, Ginethon G; Katkweba, Abdul S; Thomas, Michael

    2014-04-01

    Leptospirosis caused by spirochete bacterium of genus Leptospira affects humans and animals worldwide. Rodents are major reservoirs of leptospires whereas wetland and aquatic migratory birds also carry and transmit leptospires. Leptospirosis studies in fish are lacking in African countries despite favourable environment and abundant reservoirs, which can spread leptospires into aquatic habitats and infect fish. The objectives of this study were to determine presence of Leptospira in fish; the prevalent Leptospira serovars and whether are related to serovars reported in animals; and to ascertain potential public health risk. Live tilapia, catfish and eel fish (n = 48) were caught in Mindu Dam in Morogoro Municipality in eastern Tanzania. Blood sample was collected using syringes and needles to obtain serum for serological detection of leptospirosis using gold standard microagglutination test utilizing local and reference Leptospira serovars Sokoine, Kenya, Pomona and Hebdomadis. Twenty-six fish (54.2%) were positive for serovar Kenya (29.2%) and Sokoine (25%). Leptospira prevalence was high in both catfish (58.3%) and tilapia fish (47.8%). Thus, different fish types are infected with Leptospira found in animals. Fish could be source of Leptospira infection to humans since tilapia and catfish are the common fish type widely consumed in Tanzania. Further study covering lakes, rivers and dams is required to better understand the prevalence of Leptospira in fish and actual public health threats. PMID:26875305

  20. Replacing fish meal by food waste to produce lower trophic level fish containing acceptable levels of polycyclic aromatic hydrocarbons: Health risk assessments.

    Science.gov (United States)

    Cheng, Zhang; Mo, Wing-Yin; Lam, Cheung-Lung; Choi, Wai-Ming; Wong, Ming-Hung

    2015-08-01

    This study aimed at using different types of food wastes (mainly containing cereal [food waste A] and meat meal [food waste B]) as major sources of protein to replace the fish meal used in fish feeds to produce quality fish. The traditional fish farming model used to culture low trophic level fish included: bighead, (Hypophthalmichthys nobilis), grass carp, (Ctenopharyngodon idellus), and mud carp, (Cirrhinus molitorella) of omnivorous chain. The results indicated that grass carp and bighead carp fed with food waste feeds were relatively free of PAHs. The results of health risk assessment showed that the fish fed with food waste feeds were safe for consumption from the PAHs perspective. PMID:25880597

  1. Fish Health Data - Captive Broodstock Gene Rescue Program for Odd Year Class Elwha River Pink Salmon

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Conduct captive brood stock gene rescue program for Elwha River odd-year class pink salmon. All fresh mortalities larger than 100 mm are sent to Fish Health for...

  2. Impact of treated wastewater reuse and floods on water quality and fish health within a water reservoir in an arid climate.

    Science.gov (United States)

    Zaibel, Inbal; Zilberg, Dina; Groisman, Ludmila; Arnon, Shai

    2016-07-15

    Treated wastewater (TWW) reuse for agricultural irrigation is a well-established approach to coping with water shortages in semi-arid and arid environments. Recently, additional uses of TWW have emerged, including streamflow augmentation and aquatic ecosystem restoration. The purpose of the current study was to evaluate the water quality and fish health, in an artificial reservoir located in an arid climate (the Yeruham Reservoir, Israel), which regularly receives TWW and sporadic winter floods. The temporal distribution of water levels, nutrients and organic micropollutants (OMPs) were measured during the years 2013-2014. OMPs were also measured in sediment and fish tissues. Finally, the status of fish health was evaluated by histopathology. Water levels and quality were mainly influenced by seasonal processes such as floods and evaporation, and not by the discharge of TWW. Out of 16 tested OMPs, estrone, carbamazepine, diclofenac and bezafibrate were found in the reservoir water, but mostly at concentrations below the predicted no-effect concentration (PNEC) for fish. Concentrations of PCBs and dioxins in fish muscle and liver were much lower than the EU maximal permitted concentrations, and similar to concentrations that were found in food fish in Israel and Europe. In the histopathological analysis, there were no evident tissue abnormalities, and low to moderate infection levels of fish parasites were recorded. The results from the Yeruham Reservoir demonstrated a unique model for the mixture effect between TWW reuse and natural floods to support a unique stable and thriving ecosystem in a water reservoir located in an arid region. This type of reservoir can be widely used for recreation, education, and the social and economic development of a rural environment, such as has occurred in the Yeruham region. PMID:27065446

  3. Augmented postcard

    OpenAIRE

    Bernik , Aleš

    2012-01-01

    The aim of this thesis is the examination of augmented reality technology, which allows us mixing real and virtual elements. Augmented reality is a relatively new technology which is becoming more widespread, thanks to a fairly reasonable price of smart phones. Here we presents the types of augmented reality, the necessary technology and their advantages and disadvantages, its current use in applications, and software for building augmented reality applications. The thesis is mainly focuse...

  4. Heavy metal bioaccumulation and health hazard assessment for three fish species from Nansi Lake, China.

    Science.gov (United States)

    Li, Pengfei; Zhang, Jian; Xie, Huijun; Liu, Cui; Liang, Shuang; Ren, Yangang; Wang, Wenxing

    2015-04-01

    Metal accumulation in fish is a global public health concern, because the consumption of contaminated fish accounts for the primary exposure of humans to toxic metals. In this study, the concentrations of arsenic (As), cadmium (Cd), lead (Pb), and mercury (Hg) in Crucian carp (Carassius auratus),Yellow catfish (Pelteobagrus fulvidraco), and Bighead carp (Hypophthalmichthys nobilis) from Nansi Lake of China were evaluated, and compared with the corresponding historical values in 2001 when the government started to govern water environment effectively. Bioaccumulation of heavy metal was highest in P.fulvidraco, followed by C.auratus and H.nobilis. The concentrations of Pb, As, Cd were much lower than the historical values, but Hg concentration was higher, suggesting that heavy metal pollution problem in fish from Nansi Lake still exists. Health hazard assessment showed no health risk from exposure to Pb, As, Cd, and Hg by consuming fish from this lake. PMID:25636438

  5. Assessment of fish health around the Terra Nova oil development site on the Grand Banks

    International Nuclear Information System (INIS)

    American plaice are used as an indicator species for environmental effects monitoring (EEM) programs in the Grand Banks area of Newfoundland. This study reported on fish health studies conducted between 2000 to 2006 at the Terra Nova oil development site before and after the release of produced waters. A total of 500 fishes were studied for a 5-year period in order to evaluate health effect indicators including fish condition; visible skin and organ lesions; levels of mixed-function-oxygenase (MFO) enzymes; haematology; and various histopathological indices in the liver and gills. The study demonstrated slight elevations of MFO enzyme activity in fish from the development site in 2002, before the release of produced water. On the basis of the various studied indicators, results suggest that the project is not having a significant impact on the health of American plaice.

  6. Bioindicator and fish health studies around the Terra Nova oil development site on the Grand Banks

    International Nuclear Information System (INIS)

    Bioindicators or health effect indicators can be a valuable reconnaissance tool for addressing concerns on the part of the fishing industry and public interests regarding any potential impacts of pollutants on fish stocks. American plaice (Hippoglossoides platessoides) was initially chosen by the oil industry as an indicator species for Environmental Effects Monitoring (EEM) programs in the Grand Banks of Newfoundland because it is an important commercial flatfish. This presentation reported on fish health studies carried out at the Terra Nova development site before and after release of produced waters, which began in 2003. These studies represented 1 component of the overall Terra Nova EEM program. Fish were collected near the development area and in a reference area 20 km away. A broad range of health effect indicators were studied, including fish condition, visible skin and organ lesions, levels of mixed-function oxygenase (MFO) enzymes, haematology and an array of 19 histopathological indices in liver and gills. These indicators have been widely used in laboratory and field investigations with various fish species. A slight elevation of MFO enzyme activity was observed in fish from the development area in 2002, before release of produced water. In 2006, other indices were similar between the development and reference area. It was concluded that the overall results do not indicate any project effects.

  7. Risk-benefit evaluation of fish from Chinese markets: Nutrients and contaminants in 24 fish species from five big cities and related assessment for human health

    Energy Technology Data Exchange (ETDEWEB)

    Du, Zhen-Yu, E-mail: zdu@nifes.no [National Institute of Nutrition and Seafood Research (NIFES), N-5817 Bergen (Norway); Zhang, Jian [National Institute of Nutrition and Seafood Research (NIFES), N-5817 Bergen (Norway); Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing, 100050 (China); Department of Biomedicine, University of Bergen (Norway); Wang, Chunrong; Li, Lixiang; Man, Qingqing [Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing, 100050 (China); Lundebye, Anne-Katrine; Froyland, Livar [National Institute of Nutrition and Seafood Research (NIFES), N-5817 Bergen (Norway)

    2012-02-01

    The risks and benefits of fish from markets in Chinese cities have not previously been fully evaluated. In the present study, 24 common fish species with more than 400 individual samples were collected from markets from five big Chinese cities in 2007. The main nutrients and contaminants were measured and the risk-benefit was evaluated based on recommended nutrient intakes and risk level criteria set by relevant authorities. The comprehensive effects of nutrients and contaminants in marine oily fish were also evaluated using the data of two related human dietary intervention trials performed in dyslipidemic Chinese men and women in 2008 and 2010, respectively. The results showed that concentrations of contaminants analyzed including DDT, PCB{sub 7}, arsenic and cadmium were much lower than their corresponding maximum limits with the exception of the mercury concentration in common carp. Concentrations of POPs and n-3 LCPUFA, mainly EPA and DHA, were positively associated with the lipid content of the fish. With a daily intake of 80-100 g marine oily fish, the persistent organic pollutants in fish would not counteract the beneficial effects of n-3 LCPUFA in reducing cardiovascular disease (CVD) risk markers. Marine oily fish provided more effective protection against CVD than lean fish, particularly for the dyslipidemic populations. The risk-benefit assessment based on the present daily aquatic product intake in Chinese urban residents (44.9 and 62.3 g for the average values for all cities and big cities, respectively) indicated that fish, particularly marine oily fish, can be regularly consumed to achieve optimal nutritional benefits from n-3 LCPUFA, without causing significant contaminant-related health risks. However, the potential health threat from contaminants in fish should still be emphasized for the populations consuming large quantities of fish, particularly wild fish. - Highlights: Black-Right-Pointing-Pointer We collected 24 fish species with more than

  8. Risk–benefit evaluation of fish from Chinese markets: Nutrients and contaminants in 24 fish species from five big cities and related assessment for human health

    International Nuclear Information System (INIS)

    The risks and benefits of fish from markets in Chinese cities have not previously been fully evaluated. In the present study, 24 common fish species with more than 400 individual samples were collected from markets from five big Chinese cities in 2007. The main nutrients and contaminants were measured and the risk–benefit was evaluated based on recommended nutrient intakes and risk level criteria set by relevant authorities. The comprehensive effects of nutrients and contaminants in marine oily fish were also evaluated using the data of two related human dietary intervention trials performed in dyslipidemic Chinese men and women in 2008 and 2010, respectively. The results showed that concentrations of contaminants analyzed including DDT, PCB7, arsenic and cadmium were much lower than their corresponding maximum limits with the exception of the mercury concentration in common carp. Concentrations of POPs and n-3 LCPUFA, mainly EPA and DHA, were positively associated with the lipid content of the fish. With a daily intake of 80–100 g marine oily fish, the persistent organic pollutants in fish would not counteract the beneficial effects of n-3 LCPUFA in reducing cardiovascular disease (CVD) risk markers. Marine oily fish provided more effective protection against CVD than lean fish, particularly for the dyslipidemic populations. The risk–benefit assessment based on the present daily aquatic product intake in Chinese urban residents (44.9 and 62.3 g for the average values for all cities and big cities, respectively) indicated that fish, particularly marine oily fish, can be regularly consumed to achieve optimal nutritional benefits from n-3 LCPUFA, without causing significant contaminant-related health risks. However, the potential health threat from contaminants in fish should still be emphasized for the populations consuming large quantities of fish, particularly wild fish. - Highlights: ► We collected 24 fish species with more than 400 individual samples

  9. Evaluating and Optimizing Fish Health and Welfare During Experimental Procedures

    Science.gov (United States)

    Westall, Lynda; Karp, Natasha A.; Hazlehurst, Diane; Kovacs, Ceri; Keeble, Rosemary; Thompson, Peter; Collins, Richard; Bussell, James

    2016-01-01

    Abstract Many facilities house fish in separate static containers post-procedure, for example, while awaiting genotyping results. This ensures fish can be easily identified, but it does not allow for provision of continuous filtered water or diet. At the Wellcome Trust Sanger Institute, concern over the housing conditions led to the development of an individual housing system (GeneS) enabling feeding and water filtration. Trials to compare the water quality measures between the various systems found that fish housed in static containers experienced rapid deterioration in water quality. By day 1, measures of ammonia were outside the Institute's prescribed values and continued to rise until it was 25-fold higher than recommended levels. Nitrite levels were also outside recommended levels for all fish by day 9 and were twofold higher by the end of the trial. The water quality measures for tanks held on the recirculating system were stable even though food was provided. These results indicate that for housing zebrafish, running water or appropriately timed water changes are a critical component to ensure that the ethical obligations are met. PMID:26914790

  10. Fish fatty acids and mental health in older people

    NARCIS (Netherlands)

    Rest, van de O.

    2009-01-01

    Background It has been suggested that the intake of fish and marine n-3 polyunsaturated fatty acids could protect against age-related cognitive decline and impaired mental well-being. However, results from observational studies are inconclusive and data from randomized controlled trials in older pe

  11. Evaluation of Clinical and Administrative Data to Augment Public Health Surveillance

    OpenAIRE

    Egger, Joseph R.; Lowe, Brooks; Johnson, Erica; Durbin, Randy; Griffin, Erica; Dhakal, Sanjaya; Dey, Achintya; Groseclose, Sam

    2013-01-01

    Objective To assess the utility of inpatient and ambulatory clinical data compiled by public and commercial sources to enhance the Centers for Disease Control and Prevention’s surveillance activities. Introduction Medical claims and EHR data sources offer the potential to ascertain disease and health risk behavior prevalence and incidence, evaluate the use of clinical services, and monitor changes related to public health interventions. Passage of the HITECH Act of 2009 supports the availabil...

  12. Heavy metals in marine fish meat and consumer health: a review.

    Science.gov (United States)

    Bosch, Adina C; O'Neill, Bernadette; Sigge, Gunnar O; Kerwath, Sven E; Hoffman, Louwrens C

    2016-01-15

    The numerous health benefits provided by fish consumption may be compromised by the presence of toxic metals and metalloids such as lead, cadmium, arsenic and mercury, which can have harmful effects on the human body if consumed in toxic quantities. The monitoring of metal concentrations in fish meat is therefore important to ensure compliance with food safety regulations and consequent consumer protection. The toxicity of these metals may be dependent on their chemical forms, which requires metal speciation processes for direct measurement of toxic metal species or the identification of prediction models in order to determine toxic metal forms from measured total metal concentrations. This review addresses various shortcomings in current knowledge and research on the accumulation of metal contaminants in commercially consumed marine fish globally and particularly in South Africa, affecting both the fishing industry as well as fish consumers. PMID:26238481

  13. Impact of consumers' health beliefs, involvement and risk perception of fish consumption

    DEFF Research Database (Denmark)

    Pieniak, Zuzanna; Verbeke, Wim; Scholderer, Joachim;

    2008-01-01

    Purpose - To investigate the impact of consumers' health beliefs, involvement, and risk perception on fish consumption in five European countries. Design/methodology/approach - Cross-sectional data were collected through the SEAFOODplus pan-European consumer survey (n=4,786) with samples represen......Purpose - To investigate the impact of consumers' health beliefs, involvement, and risk perception on fish consumption in five European countries. Design/methodology/approach - Cross-sectional data were collected through the SEAFOODplus pan-European consumer survey (n=4,786) with samples......-culturally validated measures of health beliefs, involvement and risk perception to be used in further studies. Originality/value - This paper provides a unique model relating health beliefs, involvement and risk perception to fish consumption tested and validated on a pan-European large sample of consumers...

  14. Environmental Health Risk Communication: Assessing Levels of Fish-Consumption Literacy among Selected Southeast Asians

    Science.gov (United States)

    Ratnapradipa, Dhitinut; Getz, Thomas D.; Zarcadoolas, Christina; Panzara, Anthony D.; Esposito, Valerie; Wodika, Alicia B.; Caron, Colleen; Migliore, Beverly; Quilliam, Daniela N.

    2010-01-01

    Limited resources have led to a lack of comprehensive state outreach strategies that are geared for non-English speaking constituencies. The investigators worked with Southeast Asian communities in Rhode Island to determine perceptions and levels of trust with various health authorities providing health messaging about fish-consumption practices.…

  15. Fishing

    Institute of Scientific and Technical Information of China (English)

    姜群山

    2002-01-01

    @@ Last Saturday my cousin (表兄) came to my home. We were very happy to see each other. We decided that the next day we went to fish. We got up very early that day. When we left home,the moon could still be seen in the sky.

  16. HEALTH CONCERNS ON FISHERY PRODUCTS: ANTIBIOTIC RESISTANCE AND PARASITE RISK ASSESSMENT IN FISH PRODUCTION VALUE CHAINS

    OpenAIRE

    Smaldone, Giorgio

    2014-01-01

    Capture fisheries and aquaculture supplied the world with about 148 million tonnes of fish in 2010, of which about 128 million tonnes were utilized as food for people. The fishery market is becoming much more complex and stratified, with greater diversification among species and product forms and for this reason food safety remains a major concern facing the seafood industry. Along fish value chain there are a lot of concern regarding public health and for this reason the aim of this work was...

  17. Use fish biomarker response in the evaluation of the Black Sea coastal ecosystem health

    International Nuclear Information System (INIS)

    Full text: Environmental stress in the Black Sea coastal zone resulted very negative biological events in ecosystem in various levels of its biological organization from molecular to the community. The peculiarities of the polluted responses should be applied for the assessment of stress factors and their after-effects. Fish populations are the most sensitive to anthropogenic impact. Within the past 40 years the number of fish species in the Sevastopol coastal zone was declined in 2- fold and their storage in 100-fold. Thus fish responses to stressors could be used for evaluation of the entire ecosystem health. Highly distributed fish species Scorpaena porcus and Neogobius melanostomus were used as biomonitors of the coastal zones ecological status evaluation. The fish were collected from polluted and non-polluted bays in Sevastopol region and their study includes various biological indicators (biomarker) analysis. Biochemical studies of antioxidant enzyme activities (catalase, SOD, peroxidase, glutathione reductase and glutathioone-S-transferase), transaminases and aldolase in blood serum of fish caught in polluted areas showed the increase of the activity of main antioxidant enzymes SOD and glutathione-S-transferase, while the other parameters were not differed. At the same time lipid peroxidation level was higher in fish inhabited contaminated areas as compared with the individuals from the non-contaminated bay which was connected with the oxidative stress induced by the high concentrations of the xenobiotics in environment. Significant differences between lipid concentration, lipid composition and law molecular weight antioxidants were not identified. Elelctrophoretical studies of blood serum proteins demonstrated the changes in the protein composition and their variability in fish from polluted and non-polluted areas. Thus the most polluted sensitive to biochemical indicators in fish are antioxidant enzyme activities (SOD and GST), lipid peroxidation

  18. Ecological risk assessment in a large river-reservoir. 6: Bioindicators of fish population health

    International Nuclear Information System (INIS)

    Spatial distribution of contaminants in the sediments and biota of a large reservoir ecosystem were related to a variety of biological responses in fish populations and communities to determine possible relationships between contaminant loading in the environment and fish health. Much of the contaminant inventory in the Clinch River/Watts Bar Reservoir (CR/WBR) system has originated from three US Department of Energy facilities on the Oak Ridge Reservation, which borders this system in its upper reaches. Fish sampled from areas of the CR/WBR system with the highest levels of contaminants in the sediments and biota, primarily mercury and PCBs, had the most dramatic bioindicator responses. The major changes observed were induction of detoxification enzymes, organ dysfunction, increased frequency of histopathological lesions, impaired reproduction, and reduced fish community integrity. Mercury, the dominant contaminant, displayed a decreasing concentration gradient from the upper reaches of Poplar Creek to the lower Clinch River, which was consistent with a downstream gradient in several of the biological responses. A multivariate analysis using all of the individual fish health responses at each site in a discriminant analysis procedure also revealed a downstream gradient in integrated fish health. In Poplar Creek where contaminant concentrations were the highest, statistical correlations were observed between individual bioindicator responses such as contaminant exposure indicators, organ dysfunction, histopathological damage, and reproductive impairment. Relationships between contaminant loading and fish community indices such as species richness and relative abundance, however, were more difficult to establish in Poplar Creek because of the possible dominating influence of food and habitat availability on fish community dynamics. Using a suite of bioindicators that encompass a range of levels of biological organization and response-sensitivity scales improves the

  19. Modeling fish health to inform research and management: Renibacterium salmoninarum dynamics in Lake Michigan.

    Science.gov (United States)

    Fenichel, Eli P; Tsao, Jean I; Jones, Michael L

    2009-04-01

    Little is known about the interaction between fish pathogens and managed freshwater fish populations. We develop a model of chinook salmon (Oncorhynchus tschawytscha)-Renibacterium salmoninarum (Rs) dynamics based on free-swimming Lake Michigan fish by synthesizing population and epidemiological theory. Using the model, we expose critical uncertainties about the system, identify opportunities for efficient and insightful data collection, and pose testable hypotheses. Our simulation results suggest that hatcheries potentially play an important role in Lake Michigan Rs dynamics, and understanding vertical transmission will be critical for quantifying this role. Our results also show that disease-mediated responses to chinook salmon density need to be considered when evaluating management actions. Related to this, a better understanding of the stock-recruitment relationship and natural mortality rates for wild-spawned fish and the impact of hatchery stocking on recruitment is required. Finally, to further develop models capable of assisting fishery management, fish health surveys ought to be integrated with stock assessment. This is the first time a host-pathogen modeling framework has been applied to managed, freshwater ecosystems, and we suggest that such an approach should be used more frequently to inform other emerging and chronic fish health issues. PMID:19425436

  20. Public health response to puffer fish (Tetrodotoxin) poisoning from mislabeled product.

    Science.gov (United States)

    Cohen, Nicole J; Deeds, Jonathan R; Wong, Eugene S; Hanner, Robert H; Yancy, Haile F; White, Kevin D; Thompson, Trevonne M; Wahl, Michael; Pham, Tu D; Guichard, Frances M; Huh, In; Austin, Connie; Dizikes, George; Gerber, Susan I

    2009-04-01

    Tetrodotoxin is a neurotoxin that occurs in select species of the family Tetraodontidae (puffer fish). It causes paralysis and potentially death if ingested in sufficient quantities. In 2007, two individuals developed symptoms consistent with tetrodotoxin poisoning after ingesting home-cooked puffer fish purchased in Chicago. Both the Chicago retailer and the California supplier denied having sold or imported puffer fish but claimed the product was monkfish. However, genetic analysis and visual inspection determined that the ingested fish and others from the implicated lot retrieved from the supplier belonged to the family Tetraodontidae. Tetrodotoxin was detected at high levels in both remnants of the ingested meal and fish retrieved from the implicated lot. The investigation led to a voluntary recall of monkfish distributed by the supplier in three states and placement of the supplier on the U.S. Food and Drug Administration's Import Alert for species misbranding. This case of tetrodotoxin poisoning highlights the need for continued stringent regulation of puffer fish importation by the U.S. Food and Drug Administration, education of the public regarding the dangers of puffer fish consumption, and raising awareness among medical providers of the diagnosis and management of foodborne toxin ingestions and the need for reporting to public health agencies. PMID:19435231

  1. Human health risk assessment of organochlorines associated with fish consumption in a coastal city in China

    International Nuclear Information System (INIS)

    Food consumption is an important route of human exposure to organochlorines (OCs). In order to assess the potential health risks associated with these contaminants due to fish consumption, five species of fish were collected from a local market in Zhoushan City, an island in the East China Sea. Dioxin-like compounds, such as polychlorinated dibenzo-p-dioxins/ dibenzofurans, in the fish samples were screened by H4IIE-luc cell bioassay, and the concentrations of specific organochlorines were measured by gas chromatograph-electron capture detector (GC-ECD). The bioassay results indicated that concentrations of dioxin-like compounds in the fish samples were below detection limit (0.64 pg/mL). The concentrations of OC pesticides and PCBs ranged from 0.67 to 13 and 0.24 to 1.4 ng/g wet wt., respectively. Significantly, concentrations of p,p'-DDE in fish meat were comparatively high (average 3.9 ng/g wet wt.) compared with the other OC pesticides. The daily fish consumption, based on a dietary survey conducted among 160 local healthy residents, was determined to be 105 g/person. The relevant cancer benchmark concentrations of HCB, dieldrin, chlordane, DDTs and PCBs were 0.36, 0.04, 1.6, 1.7, and 0.29 ng/kg per day, respectively, based on the local diet. The hazard ratios (HRs), based on non-cancer endpoints were all less than 1.0, while the HRs based on cancer were greater than 1.0 for certain contaminants based on the 95th centile concentration in fish tissue. - Health risk assessment of organochlorines associated with fish consumption reveals potential cancer risks for some contaminants in a coastal population in China

  2. A Review: Microbiological, Physicochemical and Health Impact of High Level of Biogenic Amines in Fish Sauce

    Directory of Open Access Journals (Sweden)

    Muhammad Z. Zaman

    2009-01-01

    Full Text Available Problem statement: Biogenic amines are basic nitrogenous compounds present in a wide variety of foods and beverages. Their formations were mainly due to the amino acids decarboxylase activity of certain microorganisms. Excessive intake of biogenic amines could induce many undesirable physiological effects determined by their psychoactive and vasoactive action. Fish sauce which is considered as a good source of dietary protein, amino acids, vitamins and minerals was a popular condiment in Southeast Asian countries. However, it has also been reported that fish sauce contain high amount of amines. Hence, attention should be given to ensure the safety of this product. Approach: A review study was conducted to deliver an overview on the presence of biogenic amines in fish sauce and to discuss the important factors affecting their accumulation. Impact of amines on human health and efforts to reduce their accumulation in fish sauce were also discussed to give a comprehensive view. Results: Histamine, putrescine and cadaverine is the most abundant amines in fish sauce with maximum reported value of 1220, 1257 and 1429 ppm, respectively. Tyramine present in a lesser amount with maximum reported value of 1178 ppm. Other amines such as tryptamine, phenylethylamine, spermine and spermidine were considered as minor amines. However, different profiles of amines were reported in different type of products. This was depended on microbial flora, availability of precursors and physicochemical factors such as temperature, pH, salt, oxygen and sugar concentration. In synergistically supporting physicochemical factors, several microorganisms such as Enterobacteriaceae, Micrococci and Lactobacilli were responsible for biogenic amines formation in fish sauce. Conclusion: Since the formation of amines in fish sauce was a result of many factors, it was almost virtually impossible to control each factor during fermentation. Addition of amines degrading bacteria into fish

  3. Need for Improved Risk Communication of Fish Consumption Advisories to Protect Maternal and Child Health: Influence of Primary Informants

    OpenAIRE

    W. Gregory Cope; Consuelo Arellano; Brennan D. Bouma; Mercedes Hernández-Pelletier; Gray, Kathleen M.; Catherine E. LePrevost

    2013-01-01

    Fish consumption has established benefits, including the promotion of cardiovascular health and pre- and neonatal brain and eye development, but local freshwater fish may be a source of contaminants that are especially harmful to fetuses and young children, such as the neurotoxic and developmentally toxic methylmercury and polychlorinated biphenyls. Fish consumption advisories may be issued by state health departments to limit human exposure to these and other toxicants. This study examined t...

  4. Mercury bioaccumulation in an estuarine predator: Biotic factors, abiotic factors, and assessments of fish health.

    Science.gov (United States)

    Smylie, Meredith S; McDonough, Christopher J; Reed, Lou Ann; Shervette, Virginia R

    2016-07-01

    Estuarine wetlands are major contributors to mercury (Hg) transformation into its more toxic form, methylmercury (MeHg). Although these complex habitats are important, estuarine Hg bioaccumulation is not well understood. The longnose gar Lepisosteus osseus (L. 1758), an estuarine predator in the eastern United States, was selected to examine Hg processes due to its abundance, estuarine residence, and top predator status. This study examined variability in Hg concentrations within longnose gar muscle tissue spatially and temporally, the influence of biological factors, potential maternal transfer, and potential negative health effects on these fish. Smaller, immature fish had the highest Hg concentrations and were predominantly located in low salinity waters. Sex and diet were also important factors and Hg levels peaked in the spring. Although maternal transfer occurred in small amounts, the potential negative health effects to young gar remain unknown. Fish health as measured by fecundity and growth rate appeared to be relatively unaffected by Hg at concentrations in the present study (less than 1.3 ppm wet weight). The analysis of biotic and abiotic factors relative to tissue Hg concentrations in a single estuarine fish species provided valuable insight in Hg bioaccumulation, biomagnification, and elimination. Insights such as these can improve public health policy and environmental management decisions related to Hg pollution. PMID:27086072

  5. Comparison of bioavailability of krill oil versus fish oil and health effect

    OpenAIRE

    Ulven, Stine Marie

    2015-01-01

    Stine M Ulven,1 Kirsten B Holven2 1Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, 2Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, Oslo, Norway Background: The aim of this review is to summarize the effects of krill oil (KO) or fish oil (FO) on eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) incorporation in plasma phospholipids or membrane of red blood cells (...

  6. Health-related attitudes as a basis for segmenting European fish consumers

    DEFF Research Database (Denmark)

    Pieniak, Zuzanna; Verbeke, Wim; Olsen, Svein Ottar;

    2010-01-01

    , interest in potential informational cues when purchasing fish, and individual socio-demographic characteristics. The segment low interest in healthy eating is characterised by younger age, more males, higher BMI, low fish consumption and low interest in information, and herewith emerges as a relevant......This paper identifies and profiles consumer segments based on health-related attitudes. Cross-sectional data were collected in 2008 through a pan-European consumer survey (n = 2400) with samples representative for age and region in France, Poland and Spain. Four distinct consumer segments based...

  7. Use of mental health telemetry to enhance identification and predictive value of early changes during augmentation treatment of major depression.

    Science.gov (United States)

    Schaffer, Ayal; Kreindler, David; Reis, Catherine; Levitt, Anthony J

    2013-12-01

    Standard clinical trial methodology in depression does not allow for careful examination of early changes in symptom intensity. The purpose of this study was to use daily "Mental Health Telemetry" (MHT) to prospectively record change in depressive and anxiety symptoms for depressed patients receiving augmentation treatment, and determine the extent and predictive capacity of early changes. We report results of a 6-week, open-label study of the addition of quetiapine XR (range, 50-300 mg) for adult patients (n = 26) with major depressive disorder who were nonresponsive to antidepressant treatment. In addition to regular study visits, all participants completed daily, wirelessly transmitted self-report ratings of symptoms on a Smartphone. Daily and 3-day moving average mean scores were calculated, and associations between early symptom change and eventual response to treatment were determined. Improvement in depressive and anxiety symptoms was identified as early as day 1 of treatment. Of the total decline in depression severity over 6 weeks, 9% was present at day 1, 28% at day 2, 39% at days 3 and 4, 65% at day 7, and 80% at day 10. Self-report rating of early improvement (≥20%) in depressive symptoms at day 7 significantly predicted responder status at week 6 (P = 0.03). Clinician-rated depressive and anxiety symptoms only became significantly associated with responder status at day 14. In conclusion, very early changes in depressive symptoms were identified using MHT, early changes accounted for most of total change, and MHT-recorded improvement as early as day 7 significantly predicted response to treatment at study end point. PMID:24100787

  8. Metal contents in common edible fish species and evaluation of potential health risks to consumers

    Directory of Open Access Journals (Sweden)

    Naglaa Farag Soliman

    2015-12-01

    Full Text Available Objective: To conduct a health risk assessment of some heavy metals attributed to consumption of common edible fish species available for consumers. Methods: Concentrations of Cd, Cr, Cu, Fe, Mn, Pb and Zn were determined in muscles, gills, livers, bones and skins of six common edible fish species, namely Oreochromis niloticus, Mugil cephalus, Sardinella aurita, Mullus barbatus, Boops boops, Pagrus pagrus. Concentrations of heavy metals were determined by atomic absorption spectrophotometer and expressed as µg/g of wet tissue. Results: Results showed that iron and zinc were the most abundant among all fish tissues under investigation. The data obtained in the present work were compared well with the counterpart data reported internationally. The estimated values of all metals in muscles of fish in this study were below the permissible limits. Moreover, the potential health risks of metals to human via consumption of seafood were assessed by estimating daily intake and target heath quotient. Generally, risk values for the measured metals do not pose unacceptable risks at mean ingestion rate for muscles. Conclusions: It can be concluded that the investigated metals in edible parts of the examined species have no health problems for consumers.

  9. Occurrence of Clostridium perfringens Types A, E, and C in Fresh Fish and Its Public Health Significance.

    Science.gov (United States)

    Sabry, Maha; Abd El-Moein, Khaled; Hamza, Eman; Abdel Kader, Fatma

    2016-06-01

    Fish remains among the most traded of food commodities, and Egypt is one of the emerging countries being recognized as an important world fish exporter. Clostridium perfringens is an important foodborne pathogen to consider in fish trade, as it has been implicated as the causative organism of two fish outbreaks. The aim of the present study was to investigate the occurrence and toxin diversity of C. perfringens associated with fresh and canned fish and to examine the public health significance of C. perfringens infection in fish. Isolation and identification of C. perfringens showed a significantly higher prevalence of the bacterium in fresh fish collected from aquaculture (54.5%) and from markets (71%) as well as in humans in contact with fish (63%) compared with water used for keeping fresh fish (27.3%) and water used in canned fish (17.8%). The isolation level was significantly higher in samples from the external surface of fresh fish (31.8% in aquaculture, 45.6% in markets) than from the intestinal contents of the same fish (9.1% in aquaculture, 6.7% in markets). Thus, markets represent a risk factor for contamination of the external surface of fish from the surrounding environment. Genotyping of the C. perfringens-positive isolates by using multiplex PCR revealed that type A enterotoxin-negative (CPE(-)) is the predominant strain among fish (fresh and canned), humans, and water in contact with fresh fish. Interestingly, C. perfringens types A enterotoxin-positive (CPE(+)) and C were found only in fresh fish, and these two strains have great health importance in humans. Strikingly, C. perfringens type E strain was detected for the first time in fish, humans, and water in contact with fresh fish. Our results demonstrate for the first time that fish act as a reservoir for C. perfringens, particularly for types A CPE(+), C, and E. The external surface of fish represents a vehicle for contamination of fish from the surrounding environment as well as a source of

  10. Lip augmentation.

    Science.gov (United States)

    Byrne, Patrick J; Hilger, Peter A

    2004-02-01

    Lip augmentation has become increasingly popular in recent years as a reflection of cultural trends emphasizing youth and beauty. Techniques to enhance the appearance of the lips have evolved with advances in biotechnology. An understanding of lip anatomy and aesthetics forms the basis for successful results. We outline the pertinent anatomy and aesthetics of the preoperative evaluation. A summary of various filler materials available is provided. Augmentation options include both injectable and open surgical techniques. The procedures and materials currently favored by the authors are described in greater detail. PMID:15034811

  11. Health assessment of hydro-ecosystems based on homeostasis indicators of fish: Review of approaches

    Directory of Open Access Journals (Sweden)

    N. A. Klimenko

    2016-01-01

    Full Text Available This paper reviews scientific literature concerning the possibility of using aspects of physiological responses of fish to environmental stressors and their indicators to assess vulnerability (‘health’ of hydro-ecosystems of various types. Based on the available information, the authors have found that most of these methods are quite complex, they require a researcher to have specialized skills, involve considerable time and costs, and therefore are not widely used in research on natural water bodies. These factors allowed the author to determine the aim of the paper: the analysis of the most representative and relatively simple methods of health assessment of hydro-ecosystems by using fish as biological indicators. Some of the known concepts are then discussed, demonstrating the possibility of describing and monitoring changes in hydro-ecosystems according to morphometric parameters and fish growth variability. The paper indicates that such approaches can be justified and illustrative only when the ecosystem is assessed in clearly defined local terms. The review of literature on the influence of different biotic and abiotic factors and their mutagenic action on fish suggests that the micronucleus (MN test in fish erythrocytes is one of the most important and relatively simple assessment methods. Our research emphasizes that there is a need to pay attention in the assessment process both to the measurement units used in the presentation of research results and to their interpretation regarding the level of spontaneous mutations among fish, which differs according to various sources. The research suggests that such complications can be avoided by clarifying the levels of ontogenetic ‘noise’ for hydro-ecosystems of specific geographic zones. Taking into consideration the existing generalization of scientific facts about significant destabilization in the development of organisms when water is polluted even at low levels, the paper focuses

  12. The Ojibwa Health Study: fish residue comparisons for Lakes Superior, Michigan, and Huron.

    Science.gov (United States)

    Dellinger, J A; Meyers, R M; Gebhardt, K J; Hansen, L K

    1996-01-01

    The Ojibwa Health Study is a descriptive epidemiology study of six Ojibwa reservations in the Upper Great Lakes. Fish consumption habits, contaminant (mercury [Hg], polychlorinated biphenyls [PCBs], and other organochlorines [OCs]) residues in dietary fish and humans, and chronic disease outcomes currently are being documented. Four hundred and fifty questionnaires and approximately 200 biological samples had been collected as of December 1994. Fish collections from reservations included lake trout, walleye, lake whitefish, and lake herring from Lakes Superior (three sites), Michigan, and Huron. Hg and OC residue analyses have been completed for the fish composite samples. A preliminary examination of the data has revealed regional differences in the contaminant burdens of the fish. Lake Michigan and Lake Huron whitefish composite samples had approximately twice the OC concentrations of Lake Superior whitefish samples. In general, the whitefish composite samples were far below the U.S. Food and Drug Administration or any state advisory limits for OC or Hg residues. Lake trout samples contained higher amounts of all residues than did the whitefish samples. PMID:8843556

  13. Augmented Reality

    DEFF Research Database (Denmark)

    Kjærgaard, Hanne Wacher; Kjeldsen, Lars Peter Bech; Rahn, Annette

    2015-01-01

    This chapter describes the use of iPad-facilitated application of augmented reality in the teaching of highly complex anatomical and physiological subjects in the training of nurses at undergraduate level. The general aim of the project is to investigate the potentials of this application in term...

  14. Human Health Risk from Metals in Fish from Saudi Arabia: Consumption Patterns for Some Species Exceed Allowable Limits

    KAUST Repository

    Burger, Joanna

    2014-10-06

    ABSTRACT: Fish are a healthful source of protein, but contaminants in some fish pose a risk. While there are multiple risk assessments from Europe and North America, there are far fewer for other parts of the world. We examined the risks from mercury, arsenic, lead, and other metals in fish consumed by people in Jeddah area, Saudi Arabia, using site-specific data on consumption patterns and metal levels in fish. The U.S. Environmental Protection Agency\\'s Hazard Quotient (HQ) and cumulative Hazard Index (HI) for non-cancer endpoints and Carcinogenic Index for cancer were used to determine the health risk based on fish consumption rates. Of the 13 fish species examined, HQ was greater than 1 (indicating elevated risk) in two species for arsenic, and seven species for methylmercury. The cumulative HI for all metals was above 1 for all but three species of fish at the mean consumption rates. Generally, fish species with HI above 1 for one sampling location, had HI above 1 for all sampling locations. The implications of these findings are discussed in the light of strategies for reducing risk from fish consumption while encouraging dietary intakes of fish with low mercury and arsenic levels.

  15. Replacing fish meal by food waste in feed pellets to culture lower trophic level fish containing acceptable levels of organochlorine pesticides: health risk assessments.

    Science.gov (United States)

    Cheng, Zhang; Mo, Wing-Yin; Man, Yu-Bon; Nie, Xiang-Ping; Li, Kai-Bing; Wong, Ming-Hung

    2014-12-01

    The present study used food waste (collected from local hotels and restaurants) feed pellets in polyculture of low-trophic level fish [bighead (Aristichtys nobilis), grass carp (Ctenopharyngodon idellus), and mud carp (Cirrhina molitorella)] aiming at producing safe and quality products for local consumption. The results indicated that grass carp (hexachlorocyclohexanes (HCHs) chains within the ponds. The raw concentrations of OCPs extracted from the fish were not in the bioavailable form, which would ultimately reach bloodstream and exert adverse effects on human body. Health risk assessments based on digestible concentrations are commonly regarded as a more accurate method. The results of health risk assessments based on raw and digestible concentrations showed that the fish fed with food waste feed pellets were safe for consumption from the OCP perspective. PMID:25080070

  16. Does supplementation of formula with evening primrose and fish oils augment long chain polyunsaturated fatty acid status of low birthweight infants to that of breast-fed counterparts?

    NARCIS (Netherlands)

    Woltil, HA; van Beusekom, CM; Schaafsma, A; Okken, A; Muskiet, FAJ

    1999-01-01

    We investigated whether formulae with evening primrose and fish oils raise long chain polyunsaturated fatty acids (LCPUFA) in plasma cholesterol esters (CE), erythrocytes (RSC) and platelets (PLT) to levels encountered in breast-fed infants. Low birthweight infants (less than or equal to 2500 g) rec

  17. Invasive Lionfish (Pterois volitans: A Potential Human Health Threat for Ciguatera Fish Poisoning in Tropical Waters

    Directory of Open Access Journals (Sweden)

    Alison Robertson

    2013-12-01

    Full Text Available Invasive Indo-Pacific lionfish (Pterois volitans have rapidly expanded in the Western Atlantic over the past decade and have had a significant negative impact on reef fish biodiversity, habitat, and community structure, with lionfish out-competing native predators for resources. In an effort to reduce this population explosion, lionfish have been promoted for human consumption in the greater Caribbean region. This study examined whether the geographical expansion of the lionfish into a known ciguatera-endemic region can pose a human health threat for ciguatera fish poisoning (CFP. More than 180 lionfish were collected from waters surrounding the US Virgin Islands throughout 2010 and 2011. Ciguatoxin testing included an in vitro neuroblastoma cytotoxicity assay for composite toxicity assessment of sodium-channel toxins combined with confirmatory liquid chromatography tandem mass spectrometry. A 12% prevalence rate of ciguatoxic lionfish exceeding the FDA guidance level of 0.1 µg/kg C-CTX-1 equivalents was identified in fish from the U.S. Virgin Islands, highlighting a potential consumption risk in this region. This study presents the first evidence that the invasive lionfish, pose a direct human health risk for CFP and highlights the need for awareness and research on this food safety hazard in known endemic areas.

  18. Invasive lionfish (Pterois volitans): a potential human health threat for ciguatera fish poisoning in tropical waters.

    Science.gov (United States)

    Robertson, Alison; Garcia, Ana C; Quintana, Harold A Flores; Smith, Tyler B; Castillo, Bernard F; Reale-Munroe, Kynoch; Gulli, Joseph A; Olsen, David A; Hooe-Rollman, Jennifer I; Jester, Edward L E; Klimek, Brian J; Plakas, Steven M

    2014-01-01

    Invasive Indo-Pacific lionfish (Pterois volitans) have rapidly expanded in the Western Atlantic over the past decade and have had a significant negative impact on reef fish biodiversity, habitat, and community structure, with lionfish out-competing native predators for resources. In an effort to reduce this population explosion, lionfish have been promoted for human consumption in the greater Caribbean region. This study examined whether the geographical expansion of the lionfish into a known ciguatera-endemic region can pose a human health threat for ciguatera fish poisoning (CFP). More than 180 lionfish were collected from waters surrounding the US Virgin Islands throughout 2010 and 2011. Ciguatoxin testing included an in vitro neuroblastoma cytotoxicity assay for composite toxicity assessment of sodium-channel toxins combined with confirmatory liquid chromatography tandem mass spectrometry. A 12% prevalence rate of ciguatoxic lionfish exceeding the FDA guidance level of 0.1 µg/kg C-CTX-1 equivalents was identified in fish from the U.S. Virgin Islands, highlighting a potential consumption risk in this region. This study presents the first evidence that the invasive lionfish, pose a direct human health risk for CFP and highlights the need for awareness and research on this food safety hazard in known endemic areas. PMID:24378919

  19. Augmentation mammoplasty

    International Nuclear Information System (INIS)

    Seventy-five cases of breast implants have been reviewed. Two categories of abnormalities were identified: those involving the implant itself and those within the breast parenchyma. Complications of the implant itself include leakage, fibrous capsular contraction, traumatic rupture, displacement, and collapse. Concomitant breast parenchymal abnormalities include breast carcinoma, cysts, solid masses, and clusters of microcalcifications. Mammographic technique is critical and often involves manual settings and special views. Mammography and US in conjunction with physical examination play an important role in detecting breast pathology in the augmented breast

  20. Need for Improved Risk Communication of Fish Consumption Advisories to Protect Maternal and Child Health: Influence of Primary Informants

    Directory of Open Access Journals (Sweden)

    W. Gregory Cope

    2013-04-01

    Full Text Available Fish consumption has established benefits, including the promotion of cardiovascular health and pre- and neonatal brain and eye development, but local freshwater fish may be a source of contaminants that are especially harmful to fetuses and young children, such as the neurotoxic and developmentally toxic methylmercury and polychlorinated biphenyls. Fish consumption advisories may be issued by state health departments to limit human exposure to these and other toxicants. This study examined the efficacy of a sign designed by the North Carolina Division of Public Health that was posted along a reservoir (Badin Lake in central North Carolina, USA, for increasing anglers’ awareness of a fish consumption advisory, with a special focus on anglers who share their catch with women and children. In this study, 109 anglers were interviewed about their awareness of fish consumption advisories in general and their knowledge of the Badin Lake fish advisory in particular. Shore anglers were significantly less likely to be aware of the term “fish consumption advisory” and of the specific advisory for Badin Lake than boat anglers. Although a significant increase in knowledge of the specific fish consumption advisory was found for the entire sample of study participants after the sign intervention, a commensurate increase in knowledge was not found for a subsample of anglers who reported sharing their catch with women and children. Study findings underscore differences in fish consumption advisory awareness among subpopulations. Specifically, the study revealed the importance of characterizing the communication needs of shore anglers and anglers who share their catch with sensitive subpopulations (e.g., women and children for the creation of more targeted communications of fish consumption advisories.

  1. Implementasi Augmented Reality (AR) Pada Pengenalan Ikan Hias Menggunakan Metode Markerless Berbasis Android

    OpenAIRE

    Aditya, Fahmi Aga

    2016-01-01

    Ornamental fish is a fish that is loved by the people. Ornamental fish are divided into two types, freshwater fish and sea water fish. Currently there are still many people who do not know the type of ornamental fish overall. Therefore an android made based on mobile application uses augmented reality technology. Augmented reality is a technology that combines 2D or 3D virtual objects into real circle and projecting the virtual objects in real time. The method used in this appl...

  2. Assessment of fish health effects resulting from exposure to oil sands wastewater

    International Nuclear Information System (INIS)

    The objective of this study was to determine if oil sands wastewater had an effect on the general health and condition of hatchery raised rainbow trout (200 to 400 g). Effects were assessed based on a battery of physiological and biochemical indices and the physical condition of the fish. The trout were exposed to tailings water in the field and in a flow through system under laboratory conditions. The field tests were conducted in 1992 and 1993 in experimental ponds at Syncrude which contained fine tails covered with surface water, fine tails covered with tailings water, and a surface water control pond. The laboratory treatments included Mildred Lake tailings water, dyke drainage water, fractionated tailings pond water (acid fraction containing naphthenic acids), sodium naphthenate, recycle water from Suncor's tailings pond, and a laboratory control. All body condition factors and blood parameters were normal in the field and laboratory exposed fish and there were no apparent differences between the fish exposed to the tailings water and controls

  3. British Columbia's fish health regulatory framework's contribution to sustainability goals related to salmon aquaculture.

    Science.gov (United States)

    Stephen, Craig; Dicicco, Emiliano; Munk, Brandon

    2008-12-01

    Salmon farming is a significant contribution to the global seafood market to which the goal of sustainability is often applied. Diseases related to farms are perhaps the most contentious issues associated with sustainable salmon farming. We reviewed literature and policies in British Columbia, Canada, as well as interviewed key informants to examine how fish health regulations do or could support sustainability goals. We found four main obstacles to the development and application of a sustainability-based health management system. First, salmon farming faced the same challenges as other industries when trying to establish an operational definition of sustainability that captures all stakeholders' interests. Second, there was no program responsible for integrating the various regulations, responsible departments, and monitoring efforts to develop a comprehensive view of sustainability. Third, there was inadequate research base and social consensus on the criteria that should be used to track health outcomes for sustainability purposes. Fourth, the regulatory and management paradigm for salmon farming has been focused on diseases and pathogens as opposed to embracing a more inclusive health promotion model that includes biotic, abiotic, and social determinants of health. A transparent and inclusive participatory process that effectively links expert views with community and industry concerns should serve as the foundation for the next generation of health management regulations for salmon farming. PMID:19296177

  4. Developing immune function assays to monitor fish health in field studies

    International Nuclear Information System (INIS)

    The East Fork Poplar Creek system, a 24km long stream in TN that receives point source discharges of contaminants near its headwaters, was chosen to evaluate a field approach to fish immunotoxicology. Previous studies in this stream have shown that cytochrome P4501A activity, liver somatic indices, macrophage aggregates, and parasitic liver lesions are significantly elevated in sunfish with the degree of impact decreasing with distance from the contaminant source. Red-breasted sunfish were collected between May 23 and June 3 of 1994. Captured fish were anesthetized in MS-222 and processed by two different methods. One group was sacrificed at each sampling station, weights and lengths recorded, and the spleen and anterior kidney tissues removed and placed in buffer on ice. The other group was kept in MS-222 for 2 hr and transported to the laboratory. The spleen and anterior kidney from each fish were then prepared as a single cell suspension and shipped overnight to Mississippi State University. Cells were then washed by centrifugation and resuspended in appropriate media to evaluate PMA-stimulated phagocyte oxidative burst and non-specific cytotoxic cell (NCC) activity against K562 tumor targets. Oxidative burst responses were dramatically suppressed in both groups at stations near the headwaters but returned to reference levels further downstream. There were no differences between treatment groups at each station. NCC activities did not follow gradient-response patterns observed with phagocyte oxidative burst data and there were inconsistent differences between treatment groups at each station. These data show that simple immune function assays, such as phagocyte oxidative burst responses, can be used as an ancillary biomarker in fish health monitoring

  5. Coral Reef Health Indices versus the Biological, Ecological and Functional Diversity of Fish and Coral Assemblages in the Caribbean Sea.

    Science.gov (United States)

    Díaz-Pérez, Leopoldo; Rodríguez-Zaragoza, Fabián Alejandro; Ortiz, Marco; Cupul-Magaña, Amílcar Leví; Carriquiry, Jose D; Ríos-Jara, Eduardo; Rodríguez-Troncoso, Alma Paola; García-Rivas, María Del Carmen

    2016-01-01

    This study evaluated the relationship between the indices known as the Reef Health Index (RHI) and two-dimensional Coral Health Index (2D-CHI) and different representative metrics of biological, ecological and functional diversity of fish and corals in 101 reef sites located across seven zones in the western Caribbean Sea. Species richness and average taxonomic distinctness were used to asses biological estimation; while ecological diversity was evaluated with the indices of Shannon diversity and Pielou´s evenness, as well as by taxonomic diversity and distinctness. Functional diversity considered the number of functional groups, the Shannon diversity and the functional Pielou´s evenness. According to the RHI, 57.15% of the zones were classified as presenting a "poor" health grade, while 42.85% were in "critical" grade. Based on the 2D-CHI, 28.5% of the zones were in "degraded" condition and 71.5% were "very degraded". Differences in fish and coral diversity among sites and zones were demonstrated using permutational ANOVAs. Differences between the two health indices (RHI and 2D-CHI) and some indices of biological, ecological and functional diversity of fish and corals were observed; however, only the RHI showed a correlation between the health grades and the species and functional group richness of fish at the scale of sites, and with the species and functional group richness and Shannon diversity of the fish assemblages at the scale of zones. None of the health indices were related to the metrics analyzed for the coral diversity. In general, our study suggests that the estimation of health indices should be complemented with classic community indices, or should at least include diversity indices of fish and corals, in order to improve the accuracy of the estimated health status of coral reefs in the western Caribbean Sea. PMID:27579575

  6. Augmenting Clozapine With Sertindole

    DEFF Research Database (Denmark)

    Nielsen, Jimmi; Emborg, Charlotte; Gydesen, Susanne;

    2012-01-01

    study design was a 12-week, double-blind, randomized, placebo-controlled study including patients with International Statistical Classification of Diseases, 10th Revision schizophrenia (F20.0-F20.3) and treated with clozapine for at least 6 months who had not achieved sufficient response. Patients were...... Inventory, fasting glucose, lipids, and electrocardiogram. Clozapine augmentation with sertindole was not superior to placebo regarding total score or subscale score of the Positive and Negative Syndrome Scale, Clinical Global Impression, World Health Organization Quality of Life Brief, or Drug Attitude...... Inventory. No increased adverse effects compared with placebo were found. Four patients randomized to sertindole experienced a significant worsening of psychosis, and 2 of them required psychiatric admission. Metabolic parameters were unchanged during the study, but augmentation of clozapine with sertindole...

  7. Health Information and the Choice of Fish Species: An Experiment Measuring the Impact of Risk and Benefit Information

    OpenAIRE

    Stéphan Marette; Jutta Roosen; Sandrine Blanchemanche; Philippe Verger

    2007-01-01

    An experiment was conducted in France to evaluate the impact of health information on consumers' choice between two different types of fish. Successive messages revealing risks (methylmercury) and benefits (omega-3s) of consuming the fish, along with consumption recommendations, were delivered. Results show a significant difference of reaction according to the order and type of information. The information about risks had a larger marginal impact on change in willingness to pay (WTP) than did...

  8. Abrolhos Bank Reef Health Evaluated by Means of Water Quality, Microbial Diversity, Benthic Cover, and Fish Biomass Data

    OpenAIRE

    Bruce, Thiago; Meirelles, Pedro M.; Garcia, Gizele; Paranhos, Rodolfo; Rezende, Carlos E.; Rodrigo L. Moura; Filho, Ronaldo-Francini; Coni, Ericka O. C.; Vasconcelos, Ana Tereza; Amado Filho, Gilberto; Hatay, Mark; Schmieder, Robert; Edwards, Robert; Dinsdale, Elizabeth; Thompson, Fabiano L

    2012-01-01

    The health of the coral reefs of the Abrolhos Bank (southwestern Atlantic) was characterized with a holistic approach using measurements of four ecosystem components: (i) inorganic and organic nutrient concentrations, [1] fish biomass, [1] macroalgal and coral cover and (iv) microbial community composition and abundance. The possible benefits of protection from fishing were particularly evaluated by comparing sites with varying levels of protection. Two reefs within the well-enforced no-take ...

  9. Dietary Habits, Nutrients and Bone Mass in Spanish Premenopausal Women: The Contribution of Fish to Better Bone Health

    Directory of Open Access Journals (Sweden)

    Julian F. Calderon-Garcia

    2012-12-01

    Full Text Available The moderate consumption of fish is recommended for a healthy diet and is also a feature of the Mediterranean diet. Fish is a major food group in diets throughout the world, and studies show that fish consumption is associated with a lower risk of a number of conditions. Spain has one of the highest annual per capita consumptions of fish worldwide. As fish is a source of high quality protein; n-3 polyunsaturated fatty acids; vitamins, such as A and D; and minerals, such as selenium, calcium, iodine, magnesium, copper and zinc, nutrients that have positive effects on bone characteristics, it has been proposed that its consumption could improve bone health. In this cross-sectional study, we have investigated the relationship between dietary habits and nutrient intake of 151 Spanish premenopausal women and analyzed the association of fish consumption on bone mass measured by quantitative ultrasound of the phalanges. A higher (P < 0.05 bone mass and vitamin D intake (P < 0.05 was observed in the group with a fish intake of 5–7 servings/week. We conclude that increased fish consumption is helpful in maintaining an adequate bone mass in Spanish premenopausal women.

  10. Heavy metals and arsenic concentrations in ten fish species from the Šalek lakes (Slovenia): assessment of potential human health risk due to fish consumption.

    Science.gov (United States)

    Al Sayegh Petkovšek, Samar; Mazej Grudnik, Zdenka; Pokorny, Boštjan

    2012-05-01

    The study, which measured the concentrations of Hg, Pb, Cd, Zn and As in various fish tissues (muscle, gill and liver) of 10 fish species (Abramis brama danubii, Alburnus alburnus alburnus, Barbus meridionalis petenyi, Carassius auratius gibelio, Cyprinus carpio, Lepomis gibossus, Leuciscius cephalus cephalus, Perca fluviatilis fluviatilis, Rutilus rutilus, Scardinus erythrophtlalmus erythrophtlalmus) collected in the Šalek lakes, is the first survey regarding metal concentrations in fish species with samples originating from Slovene lakes, while only a limited number of such studies have been carried out in southeastern Europe. Since these lakes are situated in the close vicinity of the largest Slovene thermal power plant, the study provides an insight into the potential impact of increased levels of metals in the environment as well as an estimate of the contamination of fish tissues with metals. Furthermore, it was possible to compare the results obtained with those from other studies regarding metal levels in freshwater fish species. The mean metal concentrations of different tissues irrespective of species varied in the following ranges: Zn 4.31-199 mg/kg ww, Pb 0.01-0.48 mg/kg ww, As 0.02-0.44 mg/kg ww, Hg <0.01-0.31 mg/kg ww, Cd < 0.01-0.19 mg/kg ww. In general, higher contents of Hg were found in muscles and livers than in gills and higher contents of As in gills and livers than in muscles, respectively. The accumulation of Pb and Zn was most pronounced in gills. The result obtained regarding metal concentrations in fish revealed that the ecosystems of the Šalek lakes are not polluted with Hg and Pb, slightly loaded with As and Cd and moderately polluted with Zn. In addition, the potential human health risk due to fish consumption was assessed. This showed that the estimated weekly intakes for all metals were far below provisional permissible tolerable weekly intakes determined by WHO/FAO. The consumption of fish from the Šalek lakes, therefore

  11. ARLearn: augmented reality meets augmented virtuality

    NARCIS (Netherlands)

    Ternier, Stefaan; Klemke, Roland; Kalz, Marco; Van Ulzen, Patricia; Specht, Marcus

    2012-01-01

    Ternier, S., Klemke, R., Kalz, M., Van Ulzen, P., & Specht, M. (2012). ARLearn: augmented reality meets augmented virtuality [Special issue]. Journal of Universal Computer Science - Technology for learning across physical and virtual spaces, 18(15), 2143-2164.

  12. Field and laboratory investigations to assess impacts to fish health from oil sands wastewater releases (Part 1)

    International Nuclear Information System (INIS)

    A combined field and laboratory investigation was conducted during 1995 to evaluate the health of fish which were exposed to wastewaters from Suncor Inc., Oil Sands Group's operation. This investigation was designed to: assess effects on major trophic components of aquatic ecosystems; assess effects on the general condition and health of fish; and relate chemical characteristics to measured responses. A suite of indicators was examined at several levels of biological organization: biochemical, physiological, whole-organisms, population and community. This comprehensive approach was followed because stress effects on fish cannot be adequately evaluated by measuring a single indicator at a single level of organization. Fish health data for walleye (Stizostedion vitreum), goldeye (Hiodon alosoides) and longnose sucker (Catostomus catostomus) showed that there were no adverse effects on fish health at any level of organization. The laboratory investigations comprised 7 and 28 exposures to wastewater and showed that no observed effect levels (NOELs) and lowest observed effect levels (LOELs) were greater than 10% for biochemical and physiological and whole-organism endpoints

  13. Fish consumption as a driver of risk-management decisions and human health-based water quality criteria.

    Science.gov (United States)

    Judd, Nancy; Lowney, Yvette; Anderson, Paul; Baird, Suzanne; Bay, Steven M; Breidt, Jay; Buonanduci, Michele; Dong, Zhao; Essig, Don; Garry, Michael R; Jim, Rebecca C; Kirkwood, Gemma; Moore, Shelly; Niemi, Cheryl; O'Rourke, Rory; Ruffle, Betsy; Schaider, Laurel A; Vidal-Dorsch, Doris E

    2015-11-01

    The use and interpretation of fish consumption surveys and interviews, the application of fish consumption rates for sediment evaluation and cleanup, and the development of human health water quality criteria (HH WQC) are complex and interrelated issues. The present article focuses on these issues using examples from the United States, although the issues may be relevant for other countries. Some key considerations include the fact that there are many types of fish consumption surveys (e.g., 24-h recall surveys, food frequency questionnaires, creel surveys), and these surveys have different advantages and limitations. Identification of target populations for protection, identification of the species and quantities of fish consumed, and determination of bioaccumulation assumptions are important factors when developing water quality and sediment screening levels and standards. Accounting for the cultural importance of fish consumption for some populations is an even more complex element. Discussions about HH WQC often focus only on the fish consumption rate and may not have broad public input. Some states are trying to change this through extensive public participation efforts and use of probabilistic approaches to derive HH WQC. Finally, there are limits to what WQC can achieve. Solutions beyond the establishment of WQC that target toxics reduction from other sources may provide the greatest improvements to water quality and reductions in human health risks in the future. PMID:26496131

  14. Got a Sick Fish?

    Science.gov (United States)

    ... Welfare Veterinary Careers Public Health Got a sick fish? Fish with disease can show a variety of signs. If you notice your pet fish having any unusual disease signs, contact your veterinarian ...

  15. Relating fish health and reproductive metrics to contaminant bioaccumulation at the Tennessee Valley Authority Kingston coal ash spill site.

    Science.gov (United States)

    Pracheil, Brenda M; Marshall Adams, S; Bevelhimer, Mark S; Fortner, Allison M; Greeley, Mark S; Murphy, Cheryl A; Mathews, Teresa J; Peterson, Mark J

    2016-08-01

    A 4.1 million m(3) coal ash release into the Emory and Clinch rivers in December 2008 at the Tennessee Valley Authority's Kingston Fossil Plant in east Tennessee, USA, prompted a long-term, large-scale biological monitoring effort to determine if there are chronic effects of this spill on resident biota. Because of the magnitude of the ash spill and the potential for exposure to coal ash-associated contaminants [e.g., selenium (Se), arsenic (As), and mercury (Hg)] which are bioaccumulative and may present human and ecological risks, an integrative, bioindicator approach was used. Three species of fish were monitored-bluegill (Lepomis macrochirus), redear sunfish (L. microlophus), and largemouth bass (Micropterus salmoides)-at ash-affected and reference sites annually for 5 years following the spill. On the same individual fish, contaminant burdens were measured in various tissues, blood chemistry parameters as metrics of fish health, and various condition and reproduction indices. A multivariate statistical approach was then used to evaluate relationships between contaminant bioaccumulation and fish metrics to assess the chronic, sub-lethal effects of exposure to the complex mixture of coal ash-associated contaminants at and around the ash spill site. This study suggests that while fish tissue concentrations of some ash-associated contaminants are elevated at the spill site, there was no consistent evidence of compromised fish health linked with the spill. Further, although relationships between elevated fillet burdens of ash-associated contaminants and some fish metrics were found, these relationships were not indicative of exposure to coal ash or spill sites. The present study adds to the weight of evidence from prior studies suggesting that fish populations have not incurred significant biological effects from spilled ash at this site: findings that are relevant to the current national discussions on the safe disposal of coal ash waste. PMID:27154845

  16. High rate algal pond treatment for water reuse in a marine fish recirculation system: Water purification and fish health

    OpenAIRE

    Metaxa, Elisabeta; Deviller, Genevieve; Pagand, P; Alliaume, C; Casellas, C.; Blancheton, Jean-Paul

    2006-01-01

    Regardless of the degree of closure of a recirculation system, effluents are produced and replacement water is needed, which limits the possibility of locating a seawater production system away from the shoreline. At the Palavas Ifremer station, in the south of France, a High Rate Algal Pond (HRAP) was operated during several years to treat the effluent from a recirculating aquaculture system before reusing it. The effect of the HRAP-treated water on the recirculation system and on the fish w...

  17. Health-related beliefs and consumer knowledge as determinants of fish consumption

    DEFF Research Database (Denmark)

    Pieniak, Zuzanna; Verbeke, Wim; Scholderer, Joachim

    2010-01-01

    samples from Belgium, the Netherlands, Denmark, Poland and Spain. The sample consisted of 4786 respondents, aged 18-84 years, who were responsible for food purchasing and cooking in the household. Results: European consumers had a very strong belief that eating fish is healthy. Consumers' belief...... that eating fish is healthy, their interest in healthy eating and objective fish-related nutrition knowledge, positively, but only weakly, influenced fish consumption frequency. Subjective knowledge was found to be a stronger predictor of fish consumption than the previously noted factors. Age and education...... and other types of public information campaigns) will be insufficient to achieve higher levels of compliance with fish consumption recommendations....

  18. Comparison of bioavailability of krill oil versus fish oil and health effect

    Directory of Open Access Journals (Sweden)

    Ulven SM

    2015-08-01

    Full Text Available Stine M Ulven,1 Kirsten B Holven2 1Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, 2Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, Oslo, Norway Background: The aim of this review is to summarize the effects of krill oil (KO or fish oil (FO on eicosapentaenoic acid (EPA and docosahexaenoic acid (DHA incorporation in plasma phospholipids or membrane of red blood cells (RBCs as shown in human and animal studies. Furthermore, we discuss the findings in relation to the possible different health effects, focusing on lipids, inflammatory markers, cardiovascular disease risk, and biological functions of these two sources of long-chain n-3 polyunsaturated fatty acids (PUFAs. Methods: A literature search was conducted in PubMed in January 2015. In total, 113 articles were identified, but based on selection criteria, 14 original papers were included in the review. Results: Studies on bioavailability of EPA and DHA from KO and FO in humans and animals are limited and the interpretation is difficult, as different amounts of EPA and DHA have been used, duration of intervention differs, and different study groups have been included. Two human studies – one postprandial study and one intervention study – used the same amount of EPA and DHA from KO or FO, and they both showed that the bioavailability of EPA and DHA from KO seems to be higher than that from FO. Limited effects of KO and FO on lipids and inflammatory markers in human and animal studies were reported. Gene expression data from animal studies showed that FO upregulated the cholesterol synthesis pathway, which was the opposite of the effect mediated by KO. KO also regulated far more metabolic pathways than FO, which may indicate different biological effects of KO and FO. Conclusion: There seems to be a difference in bioavailability of EPA and DHA after intake of KO and FO, but

  19. Mercury and Selenium Concentrations in Biofilm, Macroinvertebrates, and Fish Collected in the Yankee Fork of the Salmon River, Idaho, USA, and Their Potential Effects on Fish Health

    Science.gov (United States)

    Rhea, Darren T.; Farag, Aida M.; Harper, David D.; McConnell, Elizabeth; Brumbaugh, William G.

    2013-01-01

    The Yankee Fork is a large tributary of the Salmon River located in central Idaho, USA, with an extensive history of placer and dredge-mining activities. Concentrations of selenium (Se) and mercury (Hg) in various aquatic trophic levels were measured in the Yankee Fork during 2001 and 2002. Various measurements of fish health were also performed. Sites included four on the mainstem of the Yankee Fork and two off-channel sites in partially reclaimed dredge pools used as rearing habitat for cultured salmonid eggs and fry. Hg concentrations in whole mountain whitefish and shorthead sculpin ranged from 0.28 to 0.56 μg/g dry weight (dw), concentrations that are generally less than those reported to have significant impacts on fish. Biofilm and invertebrates ranged from 0.05 to 0.43 μg Hg/g dw. Se concentrations measured in biota samples from the Yankee Fork were greater than many representative samples collected in the Snake and Columbia watersheds and often exceeded literature-based toxic thresholds. Biofilm and invertebrates ranged from 0.58 to 4.66 μg Se/g dw. Whole fish ranged from 3.92 to 7.10 μg Se/g dw, and gonads ranged from 6.91 to 31.84 μg Se/g dw. Whole-body Se concentrations exceeded reported toxicological thresholds at three of four sites and concentrations in liver samples were mostly greater than concentrations shown to have negative impacts on fish health. Histological examinations performed during this study noted liver abnormalities, especially in shorthead sculpin, a bottom-dwelling species.

  20. Augmented Reality in Astrophysics

    OpenAIRE

    Vogt, Frédéric P. A.; Shingles, Luke J.

    2013-01-01

    Augmented Reality consists of merging live images with virtual layers of information. The rapid growth in the popularity of smartphones and tablets over recent years has provided a large base of potential users of Augmented Reality technology, and virtual layers of information can now be attached to a wide variety of physical objects. In this article, we explore the potential of Augmented Reality for astrophysical research with two distinct experiments: (1) Augmented Posters and (2) Augmented...

  1. Use of fish biomarker response in the evaluation of the Black Sea and the Sea of Azov coastal ecosystem health

    International Nuclear Information System (INIS)

    Environmental stress in the Black Sea and the Sea of Azov coastal zones resulted in very negative biological events of the ecosystem at various levels of its biological organization, from molecular to the community levels. The peculiarities of the polluted responses should be applied for the assessment of stress factors and their effects. Fish populations are the most sensitive to anthropogenic impacts. Within the past 40 years the number of fish species in the Sevastopol coastal zone has declined 2-fold, and their storage 100-fold. Thus fish responses to stressors could be used for evaluation of the entire ecosystem health. Highly distributed fish species Scorpaena porcus and Neogobius melanostomus were used as biomonitors for the evaluation of the status of coastal zones. Fish were collected from polluted and non-polluted bays in the Sevastopol region, and their study has included the analysis of various biological indicators (biomarkers). Biochemical studies of antioxidant enzyme activities (catalase, SOD, peroxidase, glutathione reductase and glutathione-S-transferase), transaminases and aldolase in blood serum of fish caught in both seas showed the differences between the N. melanostomus inhabited in the Black Sea and the Sea of Azov coastal areas. The increase of the activity of the main antioxidant enzymes SOD and glutathione-S-transferase were demonstrated in fish blood collected in polluted areas, while the other parameters were not differed significantly. The integrated index of antioxidant enzyme activity of fish blood is presented in Table II. The highest values were detected in fish from high polluted areas, that demonstrated the induction of antioxidant system, as a response on environmental contamination. At the same time the lipid peroxidation level was higher in fish that inhabited contaminated areas, as compared with individuals from the non-contaminated bays. This was connected with oxidative stress induced by high concentrations of xenobiotics

  2. Examining pyrethroids, carbamates and neonicotenoids in fish, water and sediments from the Indus River for potential health risks.

    Science.gov (United States)

    Jabeen, Farhat; Chaudhry, Abdul Shakoor; Manzoor, Sadia; Shaheen, Tayybah

    2015-02-01

    This 3 × 3 factorial study assessed pyrethroids, carbamates and neonicotenoids groups of pesticides in replicated samples of three fish species from low (S1, reference), medium (S2) and heavy (S3) polluted sites receiving agricultural run-offs around the Indus River. Water and sediment samples from the same sites were also analysed for these pesticides by using high-performance liquid chromatography. Out of nine investigated pesticides, only three pesticides (deltamethrin, carbofuran and cypermethrin) were detected in fish and sediment samples. Deltamethrin in Cyprinus carpio ranged from 0.490 to 0.839 μg/g, mostly exceeding 0.5 μg/g as the maximum residual limit suggested by FAO-WHO, whereas it ranged from 0.214 to 0.318 μg/g in the sampled sediments. The carbofuran concentrations were 0.0425-0.066 and 0.613-0.946 μg/g in Labeo rohita and Channa marulius muscles respectively and 0.069-0.081 μg/g in the corresponding sediment samples. These values were either higher or lower than the maximum limit (0.1 μg/g) as suggested by FAO-WHO. Conversely, the cypermethrin concentration ranged from 0.141 to 0.174 in Ch. marulius and 0.183-0.197 μg/g in sediments which were both below the FAO-WHO maximum limit of 2 μg/g. No pesticide residues were detected in water from these sampling sites. Most selected physicochemical variables were within the acceptable range of World Health Organization for the water quality for aquatic life. The detected pesticide contents were mostly higher in fish muscles from heavily polluted sites. This is worrying because these pesticides may pose health risks for the fish and people of the study area. However, a preliminary risk assessment indicated that the calculated daily intake of detected pesticides by people consuming fish from the Indus River was low and did not present an immediate risk to the fish-consuming people. This study may be used as a benchmark to determine the safety of fish meat in order to develop intervention

  3. Fishing activity, health characteristics and mercury exposure of Amerindian women living alongside the Beni River (Amazonian Bolivia).

    OpenAIRE

    Bénéfice, Eric; Luna Monrroy, Selma; Lopez-Rodriguez, Ronald

    2010-01-01

    Populations in Bolivian Amazonia are exposed to mercury contamination through fish ingestion. A group of 170 Amerindian women living along the banks of the Beni River were examined in order to detect any adverse effects on their health consistent with the toxic effects of mercury. The mercury content of the women's hair (H-Hg) was used as the bio-indicator of mercury exposure. The women answered a 24-h food recall questionnaire on the frequency of their fish consumption. They also underwent a...

  4. Augmented Reality in Astrophysics

    CERN Document Server

    Vogt, Frédéric P A

    2013-01-01

    Augmented Reality consists of merging live images with virtual layers of information. The rapid growth in the popularity of smartphones and tablets over recent years has provided a large base of potential users of Augmented Reality technology, and virtual layers of information can now be attached to a wide variety of physical objects. In this article, we explore the potential of Augmented Reality for astrophysical research with two distinct experiments: (1) Augmented Posters and (2) Augmented Articles. We demonstrate that the emerging technology of Augmented Reality can already be used and implemented without expert knowledge using currently available apps. Our experiments highlight the potential of Augmented Reality to improve the communication of scientific results in the field of astrophysics. We also present feedback gathered from the Australian astrophysics community that reveals evidence of some interest in this technology by astronomers who experimented with Augmented Posters. In addition, we discuss p...

  5. The role of perceived quality, ambivalence and health involvement as a basis for clustering : a study of fish consumption in Vietnam

    OpenAIRE

    Xuan, Bui Bich

    2009-01-01

    The purpose of this study was to examine the applicability of benefits sought – based segmentation for fish market in Vietnam. A convenient sample of 809 Vietnamese households was provided to answer the questionnaires, including the questions about attitudes towards fish consumption. Cluster analysis was used to identify three distinctive consumer segments based on evaluation of quality, ambivalence and health involvement towards fish consumption. These three segments were termed the Satisfie...

  6. A histology-based fish health assessment of the tigerfish, Hydrocynus vittatus from a DDT-affected area

    Science.gov (United States)

    McHugh, K. J.; Smit, N. J.; Van Vuren, J. H. J.; Van Dyk, J. C.; Bervoets, L.; Covaci, A.; Wepener, V.

    The Pongolapoort Dam (PPD) in the Phongola River, Kwa-Zulu Natal, South Africa and the surrounding area are classified as intermediate to low risk malaria areas and are continually being treated with DDT for malaria vector control. DDT is known as an endocrine disrupting chemical posing estrogenic and anti-androgenic properties and therefore might impact on the health of the 18 freshwater fish species found within this system. Of these species the tigerfish, Hydrocynus vittatus, is targeted by both recreational and local subsistence fishermen and was recently included in the South African threatened or protected species list. Their protected status and importance as a food source therefore emphasises the need for their health status elucidation. Previous research on H. vittatus in the Phongola floodplain highlighted DDT biomagnification in this species. Recent data show that the sum of the DDT levels in February 2009 (5403.9 ng/g lipid) and July 2009 (5537.4 ng/g lipid) is still comparable to the high levels found 30 years earlier. The aim of the current study was thus to determine the health status of H. vittatus in relation to DDT exposure by means of a histology-based fish health assessment protocol. Tigerfish were collected in February 2009 ( n = 30) and July 2009 ( n = 15) and gill, kidney and liver tissue were subjected to histological analyses. Mean Index values showed that the Kidney Index ( IK), Gill Index ( IG) and Fish Index ( IFISH) were higher in fish from the February survey while the Liver Index was higher in those collected during July. Liver alterations identified included intercellular oedema, granular degeneration, vacuolation, nuclear pleomorphism and lymphocyte infiltration. Kidney alterations included dilation of the glomerulus capillaries, vacuolation and hyaline droplet degeneration. Gill alterations identified included telangiectasia and hyperplasia of the secondary lamella, congestion, and rupture of pillar cells. Although histological

  7. A histology-based fish health assessment of the tigerfish, Hydrocynus vittatus from a DDT-affected area

    OpenAIRE

    Smit, Nicholas Jacobus; McHugh, K.J.; J. H. J. van Vuuren; J. C. van Dyk; Bervoets, A.; Covaci, A.; Wepener, V.

    2011-01-01

    The Pongolapoort Dam (PPD) in the Phongola River, Kwa-Zulu Natal, South Africa and the surrounding area are classified as intermediate to low risk malaria areas and are continually being treated with DDT for malaria vector control. DDT is known as an endocrine disrupting chemical posing estrogenic and anti-androgenic properties and therefore might impact on the health of the 18 freshwater fish species found within this system. Of these species the tigerfish, Hydrocynus vittatus, is targeted b...

  8. River modeling and multi-level fish health assessment to evaluate impacts from oil sands water releases (Part 2)

    International Nuclear Information System (INIS)

    A multi-level, multi-scale approach was used to assess potential impacts to fish health from oil sands water releases. The method used to arrive at predicted impacts involved assembling experimental data on the effects of chronic exposure to oil sands wastewaters on biochemical, physiological and whole-organism endpoint. This information was used to determine no effect levels (NOELs) and lowest effect levels (LOELs) for the suite of fish health parameters used in laboratory experiments (primarily biochemical and physiological measurement endpoints). LOELs and NOELs were compared to modeled concentrations of wastewater in the Athabasca River for five time snapshots. For each time period, concentrations were predicted based on mean annual flows and 7Q10 flows (low flows). This comparison was used to predict impacts on biochemical/physiological endpoints. Impacts on at the whole-organism and population-level were determined by comparing what the laboratory data would predict with what was observed in the field. This process was used to draw a conclusion regarding the health and sustainability of fish populations

  9. Assessing chronic fish health: An application to a case of an acute exposure to chemically treated crude oil.

    Science.gov (United States)

    Mauduit, F; Domenici, P; Farrell, A P; Lacroix, C; Le Floch, S; Lemaire, P; Nicolas-Kopec, A; Whittington, M; Zambonino-Infante, J L; Claireaux, G

    2016-09-01

    assessment tool for fish health in the marine environment. PMID:27522032

  10. Abrolhos bank reef health evaluated by means of water quality, microbial diversity, benthic cover, and fish biomass data.

    Directory of Open Access Journals (Sweden)

    Thiago Bruce

    Full Text Available The health of the coral reefs of the Abrolhos Bank (Southwestern Atlantic was characterized with a holistic approach using measurements of four ecosystem components: (i inorganic and organic nutrient concentrations, [1] fish biomass, [1] macroalgal and coral cover and (iv microbial community composition and abundance. The possible benefits of protection from fishing were particularly evaluated by comparing sites with varying levels of protection. Two reefs within the well-enforced no-take area of the National Marine Park of Abrolhos (Parcel dos Abrolhos and California were compared with two unprotected coastal reefs (Sebastião Gomes and Pedra de Leste and one legally protected but poorly enforced coastal reef (the "paper park" of Timbebas Reef. The fish biomass was lower and the fleshy macroalgal cover was higher in the unprotected reefs compared with the protected areas. The unprotected and protected reefs had similar seawater chemistry. Lower vibrio CFU counts were observed in the fully protected area of California Reef. Metagenome analysis showed that the unprotected reefs had a higher abundance of archaeal and viral sequences and more bacterial pathogens, while the protected reefs had a higher abundance of genes related to photosynthesis. Similar to other reef systems in the world, there was evidence that reductions in the biomass of herbivorous fishes and the consequent increase in macroalgal cover in the Abrolhos Bank may be affecting microbial diversity and abundance. Through the integration of different types of ecological data, the present study showed that protection from fishing may lead to greater reef health. The data presented herein suggest that protected coral reefs have higher microbial diversity, with the most degraded reef (Sebastião Gomes showing a marked reduction in microbial species richness. It is concluded that ecological conditions in unprotected reefs may promote the growth and rapid evolution of opportunistic

  11. Abrolhos bank reef health evaluated by means of water quality, microbial diversity, benthic cover, and fish biomass data.

    Science.gov (United States)

    Bruce, Thiago; Meirelles, Pedro M; Garcia, Gizele; Paranhos, Rodolfo; Rezende, Carlos E; de Moura, Rodrigo L; Filho, Ronaldo-Francini; Coni, Ericka O C; Vasconcelos, Ana Tereza; Amado Filho, Gilberto; Hatay, Mark; Schmieder, Robert; Edwards, Robert; Dinsdale, Elizabeth; Thompson, Fabiano L

    2012-01-01

    The health of the coral reefs of the Abrolhos Bank (Southwestern Atlantic) was characterized with a holistic approach using measurements of four ecosystem components: (i) inorganic and organic nutrient concentrations, [1] fish biomass, [1] macroalgal and coral cover and (iv) microbial community composition and abundance. The possible benefits of protection from fishing were particularly evaluated by comparing sites with varying levels of protection. Two reefs within the well-enforced no-take area of the National Marine Park of Abrolhos (Parcel dos Abrolhos and California) were compared with two unprotected coastal reefs (Sebastião Gomes and Pedra de Leste) and one legally protected but poorly enforced coastal reef (the "paper park" of Timbebas Reef). The fish biomass was lower and the fleshy macroalgal cover was higher in the unprotected reefs compared with the protected areas. The unprotected and protected reefs had similar seawater chemistry. Lower vibrio CFU counts were observed in the fully protected area of California Reef. Metagenome analysis showed that the unprotected reefs had a higher abundance of archaeal and viral sequences and more bacterial pathogens, while the protected reefs had a higher abundance of genes related to photosynthesis. Similar to other reef systems in the world, there was evidence that reductions in the biomass of herbivorous fishes and the consequent increase in macroalgal cover in the Abrolhos Bank may be affecting microbial diversity and abundance. Through the integration of different types of ecological data, the present study showed that protection from fishing may lead to greater reef health. The data presented herein suggest that protected coral reefs have higher microbial diversity, with the most degraded reef (Sebastião Gomes) showing a marked reduction in microbial species richness. It is concluded that ecological conditions in unprotected reefs may promote the growth and rapid evolution of opportunistic microbial pathogens

  12. Subchronic exposure to diflubenzuron causes health disorders in neotropical freshwater fish, Prochilodus lineatus.

    Science.gov (United States)

    Benze, Tayrine Paschoaletti; Sakuragui, Marise Margareth; de Paula Zago, Lucas Henrique; Fernandes, Marisa Narciso

    2016-05-01

    The action of diflubenzuron (DFB) was evaluated in a freshwater fish, Prochilodus lineatus, after exposure to 0.06, 0.12, 0.25, or 0.50 mg L(-1) DFB for 14 days. Erythrocyte nuclear abnormalities (ENA), the gill activity of Na(+) /K(+) -ATPase, H(+) -ATPase and carbonic anhydrase (CA), and lipid peroxidation (LPO) and histopathological changes in the gills and liver were determined. The number of micronuclei increased in fish exposed to 0.25 and 0.50 mg L(-1) DFB. Plasma Cl(-) and the CA activity decreased, while the activity of Na(+) /K(+) -ATPase and of H(+) -ATPase increased in fish exposed to 0.25 and 0.50 mg L(-1) DFB. LPO did not change in the gills but increased in the liver of fish exposed to 0.25 and 0.50 mg L(-1) DFB. In the gills, histopathological changes indicated disperse lesions and slight to moderate damage in fish exposed to 0.50 mg L(-1) DFB, whereas in the liver, these changes were significantly greater in fish exposed to 0.25 and 0.50 mg L(-1) DFB, indicating moderate to severe damage. Continuous exposure to DFB is potentially toxic to P. lineatus, causing heath disorders when the fish is exposed to the two highest DFB concentrations, which are applied to control parasites in aquaculture and to control mosquito populations in the environment. © 2014 Wiley Periodicals, Inc. Environ Toxicol 31: 533-542, 2016. PMID:25359229

  13. Health assessment and mercury analyses of fishes of the Atchafalaya National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Mercury and poor water quality in the Atchafalaya River Basin have been documented by the Louisiana Department of Environmental Quality’s Mercury Monitoring...

  14. Organochlorine pesticide residues in paddy fish in Malaysia and the associated health risk to farmers*

    OpenAIRE

    Chen, Donald F.; Meier, Peter G.; Hilbert, Morton S.

    1984-01-01

    Paddy fish (Trichogaster pectoralis Regan) were collected from five sampling locations in a major paddy-growing area of Malaysia and analysed for organochlorine residues. During the same period, ten farming families, chosen at random from each of the five sampling sites, were interviewed. Information was obtained about the quantity of paddy fish consumed, the amount and type of pesticide used on the paddy-field, and the frequency of application.

  15. WA - Investigation of contaminants in feeds and fish at FWS Pacific Region National Fish Hatcheries and the ramifications to human and ecological health

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Returning adult salmon and steelhead were sampled at three National Fish Hatcheries (NFHs); Warm Springs NFH (spring Chinook, Oncorhynchus tshawytscha), Quilcene...

  16. Confronting an augmented reality

    OpenAIRE

    Munnerley, Danny; Bacon, Matt; Wilson, Anna,; Steele, James; Hedberg, John; Fitzgerald, Robert

    2012-01-01

    How can educators make use of augmented reality technologies and practices to enhance learning and why would we want to embrace such technologies anyway? How can an augmented reality help a learner confront, interpret and ultimately comprehend reality itself ? In this article, we seek to initiate a discussion that focuses on these questions, and suggest that they be used as drivers for research into effective educational applications of augmented reality. We discuss how multi-modal, sensorial...

  17. Mobile Augmented Reality Applications

    OpenAIRE

    Prochazka, David; Stencl, Michael; Popelka, Ondrej; Stastny, Jiri

    2011-01-01

    Augmented reality have undergone considerable improvement in past years. Many special techniques and hardware devices were developed, but the crucial breakthrough came with the spread of intelligent mobile phones. This enabled mass spread of augmented reality applications. However mobile devices have limited hardware capabilities, which narrows down the methods usable for scene analysis. In this article we propose an augmented reality application which is using cloud computing to enable using...

  18. Mobile Augmented Reality Applications

    CERN Document Server

    Prochazka, David; Popelka, Ondrej; Stastny, Jiri

    2011-01-01

    Augmented reality have undergone considerable improvement in past years. Many special techniques and hardware devices were developed, but the crucial breakthrough came with the spread of intelligent mobile phones. This enabled mass spread of augmented reality applications. However mobile devices have limited hardware capabilities, which narrows down the methods usable for scene analysis. In this article we propose an augmented reality application which is using cloud computing to enable using of more complex computational methods such as neural networks. Our goal is to create an affordable augmented reality application suitable which will help car designers in by 'virtualizing' car modifications.

  19. Medicinal plants as immunostimulants for health management in Indian cat fish

    Directory of Open Access Journals (Sweden)

    Iruthayam Vijaya Kumar

    2014-06-01

    Full Text Available Objective: To study the effect of three medicinal plants on growth, survival and immunoprotection in Mystus montanus fingerlings. Methods: The three experimental groups of fish were fed with a diet supplemented of Ocimum tenuiflorum, Zingiber officinale and Allium cepa (0.5 g each, and control group was fed without supplementation of herbal diet. After 45 d of feeding the experimental group fishes were injected with 0.5 mL of Aeromonas hydrophila and were supplemented with herbal diet. In the control group fishes were injected with 0.5 mL of physiological saline solution alone. Results: The blood samples were collected for haemotological analysis after 7 d of post infection. The results showed that the haematological parameters of haemoglobin, serum glutamicoxaloacetic transaminase, serum glutamic pyruvic transaminase, serum glucose, red blood cell and white blood cell were found to be more in challenged fish. The survival rate of pathogen challenged fish maintained on the herbal diet is better than those in the control group which is supplemented with non-herbal diet. Conclusions: These results indicated that herbal diet is useful as a growth promoter and for disease resistance of Mystus montanus against Aeromonas hydrophila infection.

  20. Adaptive Augmented Reality: Plasticity of Augmentations

    OpenAIRE

    Ghouaiel, Nehla; Cieutat, Jean-Marc; Jessel, Jean-Pierre

    2014-01-01

    International audience An augmented reality system is used to complete the real world with virtual objects (computer generated) so they seem to coexist in the same space as the real world. The concept of plasticity [4][5] was first introduced for Human Computer Interaction (HCI). It denotes the ability of an HCI interface to fit the context of use defined by the user, the environment and the platform. We believe that plasticity is a very important notion in the domain of augmented reality....

  1. Equating of Augmented Subscores

    Science.gov (United States)

    Sinharay, Sandip; Haberman, Shelby J.

    2011-01-01

    Recently, there has been an increasing level of interest in subscores for their potential diagnostic value. Haberman (2008b) suggested reporting an augmented subscore that is a linear combination of a subscore and the total score. Sinharay and Haberman (2008) and Sinharay (2010) showed that augmented subscores often lead to more accurate…

  2. Confronting an Augmented Reality

    Science.gov (United States)

    Munnerley, Danny; Bacon, Matt; Wilson, Anna; Steele, James; Hedberg, John; Fitzgerald, Robert

    2012-01-01

    How can educators make use of augmented reality technologies and practices to enhance learning and why would we want to embrace such technologies anyway? How can an augmented reality help a learner confront, interpret and ultimately comprehend reality itself ? In this article, we seek to initiate a discussion that focuses on these questions, and…

  3. Concentrations and patterns of organochlorines (OCs) in various fish species from the Indus River, Pakistan: A human health risk assessment.

    Science.gov (United States)

    Robinson, Timmer; Ali, Usman; Mahmood, Adeel; Chaudhry, Muhammad Jamshed Iqbal; Li, Jun; Zhang, Gan; Jones, Kevin C; Malik, Riffat Naseem

    2016-01-15

    The present study was conducted to reveal the concentrations and patterns of organochlorines [i.e., organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs)] in freshwater fish species collected from four ecologically important sites of the Indus River i.e., Taunsa (TAU), Rahim Yar Khan (RYK), Guddu (GUD) and Sukkur (SUK). In the fish muscle tissues, concentrations of 15 OCPs (∑15OCPs) and 29 PCBs (∑29PCBs) varied between 1.93-61.9 and 0.81-44.2 ng/g wet weight (ww), respectively. Overall, the rank order of OCs was DDTs>PCBs>hexachlorocyclohexanes (HCHs)>chlordanes (CHLs). The patterns of PCBs showed maximum contribution of tri-CBs (59%). Ratios of individual HCH and DDT analytes contributing to the summed values indicated both recent and past use of these chemicals in the region, depending upon fish species. To assess the associated health risks, carcinogenic and non-carcinogenic risks were calculated through hazard ratios (HRs). For carcinogenic risk, HR was >1 at both 50th and 95th percentile concentrations, suggesting that the daily exposure to OCPs and PCBs yields a lifetime cancer risk of 1 in a million. HR for non-cancerous risk was <1 at both the percentiles, signifying no adverse effect by OCs exposure in native population. PMID:26476063

  4. Heavy metal concentrations in fishes from Juru River, estimation of the health risk.

    Science.gov (United States)

    Idriss, A A; Ahmad, A K

    2015-02-01

    This study examined the concentration of heavy metals in 13 fish species. The results indicated that shellfish species (clams) have the highest metal concentrations, followed by demersal and pelagic fishes. The mean concentration of metals in clams are Zn 88.74 ± 11.98 µg/g, Cu 4.96 ± 1.06 µg/g, Pb 1.22 ± 0.19 µg/g, Cd 0.34 ± 0.04 µg/g dry wt. basis, whereas the same measure in fish tissues was 58.04 ± 18.51, 2.47 ± 1.21, 0.58 ± 0.27 and 0.17 ± 0.08 µg/g dry wt. basis. The concentrations of heavy metals in clams and fish tissues were still lower than the maximum allowable concentrations as suggested by the Malaysian Food Act (1983) and are considered safe for local human consumption. PMID:25564001

  5. An integrated model supporting histological and biometric responses as predictive biomarkers of fish health status

    Energy Technology Data Exchange (ETDEWEB)

    Torres Junior, Audalio Rebelo [Department of Oceanography and Limnology, Federal University of Maranhão (Brazil); Sousa, Débora Batista Pinheiro [Postgraduate Program of Aquatic Resources and Fishery (PPGRAP/UEMA), State University of Maranhão (Brazil); Neta, Raimunda Nonata Fortes Carvalho [Department of Chemistry and Biology, State University of Maranhão (Brazil)

    2014-10-06

    In this work, an experimental system of histological (branchial lesions) biomarkers and biometric data in catfish (Sciades herzbergii) was modeled. The fish were sampled along known pollution areas (S1) and from environmental protect areas (S2) in São Marcos' Bay, Brazil. Gills were fixed in 10% formalin and usual histological techniques were used in the first gill arch right. The lesions were observed by light microscopy. There were no histopathological changes in animals captured at reference site (S1). However, in the catfish collected in the potentially contaminated area (S2) was observed several branchial lesions, such as lifting of the lamellar epithelium, fusion of some secondary lamellae, hypertrophy of epithelial cells and lamellar aneurysm. The analysis using the biometric data showed significant differences, being highest in fish analyzed in the reference area. This approach revealed spatial differences related with biometric patterns and morphological modifications of catfish.

  6. An integrated model supporting histological and biometric responses as predictive biomarkers of fish health status

    International Nuclear Information System (INIS)

    In this work, an experimental system of histological (branchial lesions) biomarkers and biometric data in catfish (Sciades herzbergii) was modeled. The fish were sampled along known pollution areas (S1) and from environmental protect areas (S2) in São Marcos' Bay, Brazil. Gills were fixed in 10% formalin and usual histological techniques were used in the first gill arch right. The lesions were observed by light microscopy. There were no histopathological changes in animals captured at reference site (S1). However, in the catfish collected in the potentially contaminated area (S2) was observed several branchial lesions, such as lifting of the lamellar epithelium, fusion of some secondary lamellae, hypertrophy of epithelial cells and lamellar aneurysm. The analysis using the biometric data showed significant differences, being highest in fish analyzed in the reference area. This approach revealed spatial differences related with biometric patterns and morphological modifications of catfish

  7. Developing a polycyclic aromatic hydrocarbon exposure dose-response model for fish health and growth.

    Science.gov (United States)

    Dornberger, Lindsey; Ainsworth, Cameron; Gosnell, Stephen; Coleman, Felicia

    2016-08-15

    One of the more important steps in understanding the ecosystem-level effects of anthropogenic disturbances on resident species is developing an accurate representation of the lethal and sub-lethal effects of these stressors. We develop methods for describing the impacts of oil on growth and mortality rates in fishes. We conducted a literature search to determine potential relationships between direct and indirect effects of exposure to oil, based on the frequency of lesions and body growth reduction. Data examining these effects with different exposure mediums were assessed and then input into four potential response models (a linear, step-wise, hockey-stick, and exponential model). We assessed the models using the Akaike Information Criterion. The most parsimonious and best fit model was the hockey-stick. This analysis will aid in identifying where future research on the impact of oil on fish should focus and also aid the development of ecosystem models on impacts of oil spills. PMID:27297595

  8. Augmented reality: a review.

    Science.gov (United States)

    Berryman, Donna R

    2012-01-01

    Augmented reality is a technology that overlays digital information on objects or places in the real world for the purpose of enhancing the user experience. It is not virtual reality, that is, the technology that creates a totally digital or computer created environment. Augmented reality, with its ability to combine reality and digital information, is being studied and implemented in medicine, marketing, museums, fashion, and numerous other areas. This article presents an overview of augmented reality, discussing what it is, how it works, its current implementations, and its potential impact on libraries. PMID:22559183

  9. A Review: Microbiological, Physicochemical and Health Impact of High Level of Biogenic Amines in Fish Sauce

    OpenAIRE

    Muhammad Z. Zaman; A. S. Abdulamir; Fatimah A. Bakar; Jinap Selamat; Jamilah Bakar

    2009-01-01

    Problem statement: Biogenic amines are basic nitrogenous compounds present in a wide variety of foods and beverages. Their formations were mainly due to the amino acids decarboxylase activity of certain microorganisms. Excessive intake of biogenic amines could induce many undesirable physiological effects determined by their psychoactive and vasoactive action. Fish sauce which is considered as a good source of dietary protein, amino acids, vitamins and minerals was a popular condiment in Sout...

  10. Evaluation of Seafood Safety Health Hazards for Traditional Fish Products: Preventive Measures and Monitoring Issues

    OpenAIRE

    Köse, Sevim

    2010-01-01

    Traditional fish products (TFPs) are usually produced by applying old preserving methods such as salting, fermenting, drying and smoking. These products also greatly varies amongst the countries as well as within the same country by using many different applications such as differences in additives, percentage of salt or vinegar and maturing temperatures. Moreover, modifications in these techniques are also known due to food safety issues and changes in customer preference of new generation. ...

  11. Eco-label conveys reliable information on fish stock health to seafood consumers.

    Science.gov (United States)

    Gutiérrez, Nicolás L; Valencia, Sarah R; Branch, Trevor A; Agnew, David J; Baum, Julia K; Bianchi, Patricia L; Cornejo-Donoso, Jorge; Costello, Christopher; Defeo, Omar; Essington, Timothy E; Hilborn, Ray; Hoggarth, Daniel D; Larsen, Ashley E; Ninnes, Chris; Sainsbury, Keith; Selden, Rebecca L; Sistla, Seeta; Smith, Anthony D M; Stern-Pirlot, Amanda; Teck, Sarah J; Thorson, James T; Williams, Nicholas E

    2012-01-01

    Concerns over fishing impacts on marine populations and ecosystems have intensified the need to improve ocean management. One increasingly popular market-based instrument for ecological stewardship is the use of certification and eco-labeling programs to highlight sustainable fisheries with low environmental impacts. The Marine Stewardship Council (MSC) is the most prominent of these programs. Despite widespread discussions about the rigor of the MSC standards, no comprehensive analysis of the performance of MSC-certified fish stocks has yet been conducted. We compared status and abundance trends of 45 certified stocks with those of 179 uncertified stocks, finding that 74% of certified fisheries were above biomass levels that would produce maximum sustainable yield, compared with only 44% of uncertified fisheries. On average, the biomass of certified stocks increased by 46% over the past 10 years, whereas uncertified fisheries increased by just 9%. As part of the MSC process, fisheries initially go through a confidential pre-assessment process. When certified fisheries are compared with those that decline to pursue full certification after pre-assessment, certified stocks had much lower mean exploitation rates (67% of the rate producing maximum sustainable yield vs. 92% for those declining to pursue certification), allowing for more sustainable harvesting and in many cases biomass rebuilding. From a consumer's point of view this means that MSC-certified seafood is 3-5 times less likely to be subject to harmful fishing than uncertified seafood. Thus, MSC-certification accurately identifies healthy fish stocks and conveys reliable information on stock status to seafood consumers. PMID:22928029

  12. Fish, food security and health in Pacific Island countries and territories: a systematic literature review

    OpenAIRE

    Charlton, Karen E; Russell, Joanna; Gorman, Emma; Hanich, Quentin; Delisle, Aurélie; Campbell, Brooke; Bell, Johann

    2016-01-01

    Background Pacific Island countries and territories (PICTs) face a double burden of disease, with a high prevalence of household food insecurity and childhood micronutrient deficiencies, accompanied by a burgeoning increase in adult obesity, diabetes and heart disease. Methods A systematic literature review was undertaken to assess whether increased availability of, and access to, fish improves a) household food security and b) individual nutritional status. Results A total of 29 studies were...

  13. Invasive Lionfish (Pterois volitans): A Potential Human Health Threat for Ciguatera Fish Poisoning in Tropical Waters

    OpenAIRE

    Alison Robertson; Garcia, Ana C; Harold A. Flores Quintana; Smith, Tyler B.; Bernard F. Castillo II; Kynoch Reale-Munroe; Joseph A. Gulli; Olsen, David A.; Jennifer I. Hooe-Rollman; Jester, Edward L.E.; Klimek, Brian J.; Plakas, Steven M.

    2013-01-01

    Invasive Indo-Pacific lionfish (Pterois volitans) have rapidly expanded in the Western Atlantic over the past decade and have had a significant negative impact on reef fish biodiversity, habitat, and community structure, with lionfish out-competing native predators for resources. In an effort to reduce this population explosion, lionfish have been promoted for human consumption in the greater Caribbean region. This study examined whether the geographical expansion of the lionfish into a known...

  14. The Effects of Some Phytoadditives on Growth, Health and Meat Quality on Different Species of Fish

    Directory of Open Access Journals (Sweden)

    Erol-Florian Gabor

    2010-05-01

    Full Text Available The growing tendency for food safety led to the ban of antibiotics. To replace their effects, the search for natural alternatives has begun. Thus, strong candidates to replace antibiotics are phytoadditives. Phytoadditives are fodder additives obtained from medicinal plants or plants extracts. Through their use it can be hoped to achieve the same results as in the use of antibiotics. Although they have a large spectrum of use, even today their mechanisms of action are not fully understood. Only recent, the study on the possibility of phytoadditives usage in aquaculture has begun. The present study is a review of the use of some plants as phytoadditives (garlic, onion, oregano, etc. and of the researches made to reveal their effects on fish. The researches conducted in this field have shown the diverse effects of these phytoadditives used in fish as immunomodulators, immunostimulants, bioproductives, antioxidants, antimicrobials, stimulants of the enzymatic equipment, stimulants of nitrogen absorption. A major advantage in the use of phytoadditives is the fact that they are natural substances and do not pose any threat to fish, man or environment.

  15. Agricultural sources of contaminants of emerging concern and adverse health effects on freshwater fish

    Science.gov (United States)

    Tillitt, Donald E.; Buxton, Herbert T.

    2011-01-01

    Agricultural contaminants of emerging concern (CECs) are generally thought of as certain classes of chemicals associated with animal feeding and production facilities. Veterinary pharmaceuticals used in animal food production systems represent one of the largest groups of CECs. In our review, we discuss the extensive increase in use of antibiotics in animal feeding operations (AFOs) around the world. AFOs are a major consumer of antibiotics and other veterinary pharmaceuticals and over the past decade there has been growing information on the occurrence, release, and fate of CECs from animal food production operations, including the application of pharmaceutical-containing manure to agricultural fields and releases from waste lagoons. Concentrations of CECs in surface and ground water in proximity to AFOs correspond to their presence in the AFO wastes. In many cases, the environmental concentrations of agriculturally-derived CECs are below toxicity thresholds. Hormones and hormone replacement compounds are a notable exception, where chemical concentrations near AFOs can exceed concentrations known to cause adverse effects on endocrine-related functions in fish. In addition, some agricultural pesticides, once thought to be safe to non-target organisms, have demonstrated endocrine-related effects that may pose threats to fish populations in agricultural regions. That is, we have pesticides with emerging concerns, thus, the concern is emerging and not necessarily the chemical. In this light, one must consider certain agricultural pesticides to be included in the list of CECs. Even though agricultural pesticides are routinely evaluated in regulatory testing schemes which have been used for decades, the potential hazards of some pesticides have only recently been emerging. Emerging concerns of pesticides in fish include interference with hormone signaling pathways; additive (or more than additive) effects from pesticide mixtures; and adverse population-level effects at

  16. Media-Augmented Exercise Machines

    Science.gov (United States)

    Krueger, T.

    2002-01-01

    Cardio-vascular exercise has been used to mitigate the muscle and cardiac atrophy associated with adaptation to micro-gravity environments. Several hours per day may be required. In confined spaces and long duration missions this kind of exercise is inevitably repetitive and rapidly becomes uninteresting. At the same time, there are pressures to accomplish as much as possible given the cost- per-hour for humans occupying orbiting or interplanetary. Media augmentation provides a the means to overlap activities in time by supplementing the exercise with social, recreational, training or collaborative activities and thereby reducing time pressures. In addition, the machine functions as an interface to a wide range of digital environments allowing for spatial variety in an otherwise confined environment. We hypothesize that the adoption of media augmented exercise machines will have a positive effect on psycho-social well-being on long duration missions. By organizing and supplementing exercise machines, data acquisition hardware, computers and displays into an interacting system this proposal increases functionality with limited additional mass. This paper reviews preliminary work on a project to augment exercise equipment in a manner that addresses these issues and at the same time opens possibilities for additional benefits. A testbed augmented exercise machine uses a specialty built cycle trainer as both input to a virtual environment and as an output device from it using spatialized sound, and visual displays, vibration transducers and variable resistance. The resulting interactivity increases a sense of engagement in the exercise, provides a rich experience of the digital environments. Activities in the virtual environment and accompanying physiological and psychological indicators may be correlated to track and evaluate the health of the crew.

  17. Postreduction Breast Augmentation

    OpenAIRE

    Hidalgo, David A.; Doft, Melissa A.

    2015-01-01

    Background: Most breast reduction patients are highly satisfied after surgery. However, there is a subset of women who seek breast augmentation years later to restore lost volume chiefly associated with weight loss and postpartum changes. Breast shape and overall aesthetics are often revised at the same time. Methods: A retrospective review was performed of 2 surgeons’ experiences with post-reduction breast augmentation. Twenty patients were identified between 2002 and 2014. An in-depth chart...

  18. Transaxillary Endoscopic Breast Augmentation

    OpenAIRE

    Sim, Hyung-Bo

    2014-01-01

    The axillary technique is the most popular approach to breast augmentation among Korean women. Transaxillary breast augmentation is now conducted with sharp electrocautery dissection under direct endoscopic vision throughout the entire process. The aims of this method are clear: both a bloodless pocket and a sharp non-traumatic dissection. Round textured or anatomical cohesive gel implants have been used to make predictable well-defined inframammary creases because textured surface implants d...

  19. Marketing and Augmented Reality

    OpenAIRE

    Zelený, Martin

    2010-01-01

    The main goal of this diploma thesis is to identify the usage of augmented reality in contemporary marketing practice and the expectations of marketers for the future use. This will be achieved by conducting a quantitative and qualitative research among existing creative and advertising companies. Secondary goal is introducing the concept of augmented reality from the theoretical point of view and also description of potential utilization based on known examples. The tools for the practical p...

  20. Augmented Reality im Techniktraining

    OpenAIRE

    Schack, Thomas; Heinen, Thomas; Hermann, Thomas

    2007-01-01

    In den letzten Jahren wurden in Bereichen wie Robotik, Telemanipulation und Militär neue Technologien entwickelt, die als Augmented Reality (Erweiterte Realität) (Milgram et al., 1994) bezeichnet werden. Durch Augmented Reality wird die Leistungs fähigkeit der beteiligten Menschen nachweisbar unterstützt. Dabei wird die Realität eines Agenten computergestützt mit virtueller Information - auf visueller, akustischer oder taktiler Basis - in Echtzeit überlagert (erweitert). Die wesentliche Eig...

  1. Confronting an augmented reality

    Directory of Open Access Journals (Sweden)

    John Hedberg

    2012-08-01

    Full Text Available How can educators make use of augmented reality technologies and practices to enhance learning and why would we want to embrace such technologies anyway? How can an augmented reality help a learner confront, interpret and ultimately comprehend reality itself? In this article, we seek to initiate a discussion that focuses on these questions, and suggest that they be used as drivers for research into effective educational applications of augmented reality. We discuss how multi-modal, sensorial augmentation of reality links to existing theories of education and learning, focusing on ideas of cognitive dissonance and the confrontation of new realities implied by exposure to new and varied perspectives. We also discuss connections with broader debates brought on by the social and cultural changes wrought by the increased digitalisation of our lives, especially the concept of the extended mind. Rather than offer a prescription for augmentation, our intention is to throw open debate and to provoke deep thinking about what interacting with and creating an augmented reality might mean for both teacher and learner.

  2. Biometric parameters of the bream (Abramis brama) as indicators for long-term changes in fish health and environmental quality--data from the German ESB.

    Science.gov (United States)

    Teubner, Diana; Paulus, Martin; Veith, Michael; Klein, Roland

    2015-02-01

    Piscifaunal health depends upon the state and quality of the aquatic environment. Variations in physical condition of fish may therefore be attributed to changes in environmental quality. Based on time series of up to 20 years of biometric data of bream from multiple sampling sites of the German environmental specimen bank (ESB), this study assessed whether changes in biometric parameters are able to indicate long-term alterations in fish health and environmental quality. Evaluated biometric parameters of fish health comprised length and weight of individuals of a defined age class, the condition factor, lipid content and hepatosomatic index (HSI). Although there are negative trends of the HSI, the overall development of health parameters can be interpreted as positive. This seems to suggest that health parameters conclusively mirror the long-term improvement of water quality in the selected rivers. However, the applicability of the condition factor as well as lipid content as indicators for fish health remained subject to restrictions. Altogether, the results from the ESB confirmed the high value of biometric parameters for monitoring of long-term changes in state and quality of aquatic ecosystems. PMID:24824506

  3. Impact of wastewater on fish health: a case study at the Neckar River (Southern Germany) using biomarkers in caged brown trout as assessment tools.

    Science.gov (United States)

    Vincze, Krisztina; Scheil, Volker; Kuch, Bertram; Köhler, Heinz R; Triebskorn, Rita

    2015-08-01

    The present work describes a field survey aiming at assessing the impact of a sewage treatment plant (STP) effluent on fish health by means of biomarkers. Indigenous fish were absent downstream of the STP. To elucidate the reason behind this, brown trout (Salmo trutta f. fario) were exposed in floating steel cages up- and downstream of a STP located at the Neckar River near Tübingen (Southern Germany), for 10 and 30 days. A combination of biomarker methods (histopathological investigations, analysis of the stress protein Hsp70, micronucleus test, B-esterase assays) offered the possibility to investigate endocrine, geno-, proteo- and neurotoxic effects in fish organs. Biological results were complemented with chemical analyses on 20 accumulative substances in fish tissue. Even after short-term exposure, biomarkers revealed clear evidence of water contamination at both Neckar River sites; however, physiological responses of caged brown trout were more severe downstream of the STP. According to this, similar bioaccumulation levels (low μg/kg range) of DDE and 12 polycyclic aromatic hydrocarbons (PAHs) were detected at both sampling sites, while up to fourfold higher concentrations of four PAHs, methyl-triclosan and two synthetic musks occurred in the tissues of downstream-exposed fish. The results obtained in this study suggest a constitutive background pollution at both sites investigated at the Neckar River and provided evidence for the additional negative impact of the STP Tübingen on water quality and the health condition of fish. PMID:25860546

  4. Scientific Opinion on health benefits of seafood (fish and shellfish consumption in relation to health risks associated with exposure to methylmercury

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA

    2014-07-01

    Full Text Available Following a request from the European Commission to address the risks and benefits as regards fish/seafood consumption related to relevant beneficial substances (e.g. nutrients such as n-3 long-chain polyunsaturated fatty acids and the contaminant methylmercury, the Panel on Dietetic Products, Nutrition and Allergies (NDA was asked to deliver a Scientific Opinion on health benefits of seafood consumption in relation to health risks associated with exposure to methylmercury. In the present Opinion, the NDA Panel has reviewed the role of seafood in European diets and evaluated the beneficial effects of seafood consumption in relation to health outcomes and population subgroups that have been identified by the FAO/WHO Joint Expert Consultation on the Risks and Benefits of Fish Consumption and/or the EFSA Panel on Contaminants in the context of a risk assessment related to the presence of mercury and methylmercury in food as relevant for the assessment. These included the effects of seafood consumption during pregnancy on functional outcomes of children’s neurodevelopment and the effects of seafood consumption on cardiovascular disease risk in adults. The Panel concluded that consumption of about 1‑2 servings of seafood per week and up to 3‑4 servings per week during pregnancy has been associated with better functional outcomes of neurodevelopment in children compared to no consumption of seafood. Such amounts have also been associated with a lower risk of coronary heart disease mortality in adults and are compatible with current intakes and recommendations in most of the European countries considered. These associations refer to seafood per se andinclude beneficial and adverse effects of nutrients and non-nutrients (i.e. including contaminants such as methylmercury contained in seafood. No additional benefits on neurodevelopmental outcomes and no benefit on coronary heart disease mortality risk might be expected at higher intakes.

  5. Tissue distribution of HCH and DDT congeners and human health risk associated with consumption of fish collected from Kabul River, Pakistan.

    Science.gov (United States)

    Aamir, Muhammad; Khan, Sardar; Nawab, Javed; Qamar, Zahir; Khan, Anwarzeb

    2016-03-01

    Distribution of hexachlorocyclohexane (HCH) and dichlorodiphenyltrichloroethane (DDT) congeners in tissues of four different fish species and their associated potential health risks to local consumers are presented in this paper. The average ∑(HCHs+DDTs) concentration in Glyptothorax punjabensis (214ngg(-1) wet weight (ww)) (carnivores) was found higher than Tor putitora (155ngg(-1) ww) (herbivores). The distribution of ∑(HCHs+DDTs) in all fish tissues was found in order of liver>muscle>stomach>gills. The profile of congeners (β-HCH/∑HCH from 0.29-0.47) indicated that all selected fish species were contaminated with HCH because of its recent usage in the study area. Furthermore, DDT profile ((DDE+DDD)/∑DDT from 0.61-0.78) showed that fish contamination with DDT originated from past usage and long-time degradation mechanism. The average estimated daily dietary intake of ∑HCHs (15.0ngkg(-1) day(-1)) was higher than ∑DDTs (12.5ngkg(-1) day(-1)) by the local consumers via fish consumption. On the basis of both 50th and 95th percentile exposure levels, the carcinogenic hazard ratios for DDT and its congeners were exceeded one (safe limit) for all fish species, indicating a great potential cancer risk for local consumers with life time consumption of contaminated fish collected from Kabul River. PMID:26685785

  6. Nutrients and contaminants in tissues of five fish species obtained from Shanghai markets: Risk–benefit evaluation from human health perspectives

    Energy Technology Data Exchange (ETDEWEB)

    Geng, Jing-Jing [Key Laboratory of Geographic Information Science, Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241 (China); Li, Huan; Liu, Jin-Pin [Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, 200241 Shanghai (China); Yang, Yi, E-mail: yyang@geo.ecnu.edu.cn [Key Laboratory of Geographic Information Science, Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241 (China); State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 Zhongshan North Road, Shanghai 200062 (China); Jin, Ze-Lin; Zhang, Yun-Ni; Zhang, Mei-Ling; Chen, Li-Qiao [Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, 200241 Shanghai (China); Du, Zhen-Yu, E-mail: zydu@bio.ecnu.edu.cn [Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, 200241 Shanghai (China)

    2015-12-01

    Shanghai is a Chinese megacity in the Yangtze River Delta area, one of the most polluted coastal areas in China. The inhabitants of Shanghai have very high aquatic product consumption rates. A risk–benefit assessment of the co-ingestion of fish nutrients and contaminants has not previously been performed for Shanghai residents. Samples of five farmed fish species (marine and freshwater) with different feeding habits were collected from Shanghai markets in winter and summer. Fatty acids, protein, mercury, cadmium, lead, copper, polychlorinated biphenyls, hexachlorocyclohexanes, and dichlorodiphenyltrichloroethanes were measured in liver, abdominal fat, and dorsal, abdominal, and tail muscles from fish. Tolerable daily intakes and benefit–risk quotients were calculated to allow the benefits and risks of co-ingesting n − 3 long-chain polyunsaturated fatty acids and contaminants to be assessed according to the cancer slope factors and reference doses of selected pollutants. All of the contaminant concentrations in the muscle tissues were much lower than the national maximum limits, but the livers generally contained high Hg concentrations, exceeding the regulatory limit. The organic pollutant and n − 3 long-chain polyunsaturated fatty acid concentrations correlated with the lipid contents of the fish tissues, and were higher in carnivorous marine fish than in omnivorous and herbivorous freshwater fish. The tolerable daily intakes, risk–benefit quotients, and current daily aquatic product intakes for residents of large Chinese cities indicated that the muscle tissues of most of the fish analyzed can be consumed regularly without significant contaminant-related risks to health. However, attention should be paid to the potential risks posed by dichlorodiphenyltrichloroethane in large yellow croaker and Hg in tilapia. Based on the results of this study, we encourage people to consume equal portions of marine and freshwater fish. - Highlights: • Shanghai coast

  7. Nutrients and contaminants in tissues of five fish species obtained from Shanghai markets: Risk–benefit evaluation from human health perspectives

    International Nuclear Information System (INIS)

    Shanghai is a Chinese megacity in the Yangtze River Delta area, one of the most polluted coastal areas in China. The inhabitants of Shanghai have very high aquatic product consumption rates. A risk–benefit assessment of the co-ingestion of fish nutrients and contaminants has not previously been performed for Shanghai residents. Samples of five farmed fish species (marine and freshwater) with different feeding habits were collected from Shanghai markets in winter and summer. Fatty acids, protein, mercury, cadmium, lead, copper, polychlorinated biphenyls, hexachlorocyclohexanes, and dichlorodiphenyltrichloroethanes were measured in liver, abdominal fat, and dorsal, abdominal, and tail muscles from fish. Tolerable daily intakes and benefit–risk quotients were calculated to allow the benefits and risks of co-ingesting n − 3 long-chain polyunsaturated fatty acids and contaminants to be assessed according to the cancer slope factors and reference doses of selected pollutants. All of the contaminant concentrations in the muscle tissues were much lower than the national maximum limits, but the livers generally contained high Hg concentrations, exceeding the regulatory limit. The organic pollutant and n − 3 long-chain polyunsaturated fatty acid concentrations correlated with the lipid contents of the fish tissues, and were higher in carnivorous marine fish than in omnivorous and herbivorous freshwater fish. The tolerable daily intakes, risk–benefit quotients, and current daily aquatic product intakes for residents of large Chinese cities indicated that the muscle tissues of most of the fish analyzed can be consumed regularly without significant contaminant-related risks to health. However, attention should be paid to the potential risks posed by dichlorodiphenyltrichloroethane in large yellow croaker and Hg in tilapia. Based on the results of this study, we encourage people to consume equal portions of marine and freshwater fish. - Highlights: • Shanghai coast

  8. Augmenting computer networks

    Science.gov (United States)

    Bokhari, S. H.; Raza, A. D.

    1984-01-01

    Three methods of augmenting computer networks by adding at most one link per processor are discussed: (1) A tree of N nodes may be augmented such that the resulting graph has diameter no greater than 4log sub 2((N+2)/3)-2. Thi O(N(3)) algorithm can be applied to any spanning tree of a connected graph to reduce the diameter of that graph to O(log N); (2) Given a binary tree T and a chain C of N nodes each, C may be augmented to produce C so that T is a subgraph of C. This algorithm is O(N) and may be used to produce augmented chains or rings that have diameter no greater than 2log sub 2((N+2)/3) and are planar; (3) Any rectangular two-dimensional 4 (8) nearest neighbor array of size N = 2(k) may be augmented so that it can emulate a single step shuffle-exchange network of size N/2 in 3(t) time steps.

  9. Incidence of Aeromonas spp. infection in fish and chicken meat and its related public health hazards: A review.

    Science.gov (United States)

    Praveen, Praveen Kumar; Debnath, Chanchal; Shekhar, Shashank; Dalai, Nirupama; Ganguly, Subha

    2016-01-01

    Aeromonas is recognized to cause a variety of diseases in man. In humans, they are associated with intestinal and extra-intestinal infections. With the growing importance of Aeromonas as an emerging pathogen, it is important to combat this organism. It is indisputable that Aeromonas strains may produce many different putative virulence factors such as enterotoxins, hemolysins or cytotoxins, and antibiotic resistance against different antibiotics. The ability of these bacteria to grow competitively at 5°C may be indicative of their potential as a public health hazard. Comprehensive enteric disease surveillance strategies, prevention and education are essential for meeting the challenges in the years ahead. It is important for us to promote the value of enteric cultures when patients have a gastrointestinal illness or bloody diarrhea or when multiple cases of enteric disease occur after a common exposure. With the growing importance of Aeromonas as an emerging pathogen, it is important to combat this organism. It is indisputable that Aeromonas strains may produce many different putative virulence factors, such as enterotoxins, hemolysins or cytotoxins. It has been established that aerolysin is a virulence factor contributing to the pathogenesis of Aeromonas hydrophila infection. Fish and chicken play an important role in the transmission of this pathogen to humans. In the present study, the high prevalence of toxin-producing strains was found among the Aeromonas isolates. The ability of these bacteria to grow competitively at 5°C may be indicative of their potential as a public health hazard. The present review was constructed with a view to highlight the zoonotic importance of Aeromonas pathogen in fish and chicken meat. PMID:27051177

  10. Incidence of Aeromonas spp. infection in fish and chicken meat and its related public health hazards: A review

    Directory of Open Access Journals (Sweden)

    Praveen Kumar Praveen

    2016-01-01

    Full Text Available Aeromonas is recognized to cause a variety of diseases in man. In humans, they are associated with intestinal and extraintestinal infections. With the growing importance of Aeromonas as an emerging pathogen, it is important to combat this organism. It is indisputable that Aeromonas strains may produce many different putative virulence factors such as enterotoxins, hemolysins or cytotoxins, and antibiotic resistance against different antibiotics. The ability of these bacteria to grow competitively at 5°C may be indicative of their potential as a public health hazard. Comprehensive enteric disease surveillance strategies, prevention and education are essential for meeting the challenges in the years ahead. It is important for us to promote the value of enteric cultures when patients have a gastrointestinal illness or bloody diarrhea or when multiple cases of enteric disease occur after a common exposure. With the growing importance of Aeromonas as an emerging pathogen, it is important to combat this organism. It is indisputable that Aeromonas strains may produce many different putative virulence factors, such as enterotoxins, hemolysins or cytotoxins. It has been established that aerolysin is a virulence factor contributing to the pathogenesis of Aeromonas hydrophila infection. Fish and chicken play an important role in the transmission of this pathogen to humans. In the present study, the high prevalence of toxin-producing strains was found among the Aeromonas isolates. The ability of these bacteria to grow competitively at 5°C may be indicative of their potential as a public health hazard. The present review was constructed with a view to highlight the zoonotic importance of Aeromonas pathogen in fish and chicken meat.

  11. Prototyping Augmented Reality

    CERN Document Server

    Mullen, Tony

    2011-01-01

    Learn to create augmented reality apps using Processing open-source programming language Augmented reality (AR) is used all over, and you may not even realize it. Smartphones overlay data onto live camera views to show homes for sale, restaurants, or historical sites. American football broadcasts use AR to show the invisible first-down line on the field to TV viewers. Nike and Budweiser, among others, have used AR in ads. Now, you can learn to create AR prototypes using 3D data, Processing open-source programming language, and other languages. This unique book is an easy-to-follow guide on how

  12. Augmented reality som wearable

    DEFF Research Database (Denmark)

    Buhl, Mie; Rahn, Annette

    2015-01-01

    Artiklen omhandler design og implementering af Augmented Reality (AR) i form af en wearable i sygeplejerskeuddannelsens anatomiundervisning, mere specifikt undervisning i lungeanatomi og respiration, med fokus på potentialer for visuel læring. Projektet undersøger, hvordan en udviklet AR-applikat......Artiklen omhandler design og implementering af Augmented Reality (AR) i form af en wearable i sygeplejerskeuddannelsens anatomiundervisning, mere specifikt undervisning i lungeanatomi og respiration, med fokus på potentialer for visuel læring. Projektet undersøger, hvordan en udviklet AR...

  13. Collaborative augmented reality environments

    DEFF Research Database (Denmark)

    Büscher, Monika; Christensen, Michael; Grønbæk, Kaj;

    2000-01-01

    This paper describes Manufaktur, a prototype of a concept and infrastructure that goes beyond the classical CVE systems toward a collaborative augmented reality environment, where users? documents and objects appear as live representations in a 3D workspace. Manufaktur supports collaborative...

  14. Augmented Reality og kulturarv

    DEFF Research Database (Denmark)

    Nielsen, Mikkel Kirkedahl Lysholm

    2013-01-01

    Museerne står overfor at skulle omfavne den digitale kultur i håndteringen af den store mængde viden, institutionerne repræsenterer. Augmented Reality-systemer forbinder ved hjælp af moderne teknologi det virtuelle med det virkelige, og kan derfor synes som en oplagt anvendelsesmulighed i...

  15. Nutrients and contaminants in tissues of five fish species obtained from Shanghai markets: Risk-benefit evaluation from human health perspectives.

    Science.gov (United States)

    Geng, Jing-Jing; Li, Huan; Liu, Jin-Pin; Yang, Yi; Jin, Ze-Lin; Zhang, Yun-Ni; Zhang, Mei-Ling; Chen, Li-Qiao; Du, Zhen-Yu

    2015-12-01

    Shanghai is a Chinese megacity in the Yangtze River Delta area, one of the most polluted coastal areas in China. The inhabitants of Shanghai have very high aquatic product consumption rates. A risk-benefit assessment of the co-ingestion of fish nutrients and contaminants has not previously been performed for Shanghai residents. Samples of five farmed fish species (marine and freshwater) with different feeding habits were collected from Shanghai markets in winter and summer. Fatty acids, protein, mercury, cadmium, lead, copper, polychlorinated biphenyls, hexachlorocyclohexanes, and dichlorodiphenyltrichloroethanes were measured in liver, abdominal fat, and dorsal, abdominal, and tail muscles from fish. Tolerable daily intakes and benefit-risk quotients were calculated to allow the benefits and risks of co-ingesting n-3 long-chain polyunsaturated fatty acids and contaminants to be assessed according to the cancer slope factors and reference doses of selected pollutants. All of the contaminant concentrations in the muscle tissues were much lower than the national maximum limits, but the livers generally contained high Hg concentrations, exceeding the regulatory limit. The organic pollutant and n-3 long-chain polyunsaturated fatty acid concentrations correlated with the lipid contents of the fish tissues, and were higher in carnivorous marine fish than in omnivorous and herbivorous freshwater fish. The tolerable daily intakes, risk-benefit quotients, and current daily aquatic product intakes for residents of large Chinese cities indicated that the muscle tissues of most of the fish analyzed can be consumed regularly without significant contaminant-related risks to health. However, attention should be paid to the potential risks posed by dichlorodiphenyltrichloroethane in large yellow croaker and Hg in tilapia. Based on the results of this study, we encourage people to consume equal portions of marine and freshwater fish. PMID:26105705

  16. Human Health Impact of Natural and Artificial Radioactivity Levels in the Sediments and Fish of Bonny Estuary, Niger Delta, Nigeria

    Directory of Open Access Journals (Sweden)

    Bolaji B. Babatunde

    2015-11-01

    Full Text Available There is widespread contamination of the environment of the Niger Delta, which may include enhanced background levels of naturally occurring radioactive materials (NORM due to oil production and rapid urbanization activities. Sediments and seafood from the Bonny estuary, Niger Delta, were collected for the purpose of determining baseline data on artificial and natural radioactivity and estimation of effective doses for the public due to ingestion of seafood from the study area. The highest and lowest activity concentrations were reported for 40K and 137Cs in both sediments and fish samples of the Bonny estuary. There was some evidence of spatial variability in the 40K and 137Cs data, with the latter being the likely result of dredging. Other radionuclides were not significantly different between sites impacted by industrial activities or not. Activity of radionuclides measured in the sediments of the study area were higher than reported elsewhere in the Niger Delta and Nigeria and higher than reported global averages by UNSCEAR. The total highest activity concentration in all fish species of gamma emitting radionuclides was observed for 40K, followed by 238U, 232Th and 226Ra, respectively, while 137Cs had the lowest activity concentration. However, 210Po activities were the most important in terms of dose contribution. Consumption of molluscs at typical rates could result in doses exceeding 1 mSv·y−1. Although this baseline data may not be conclusive on prevailing trends in radioactivity in the study area, higher consumption rates of the species studied may have public health consequences due to effects of low dose ionising radiation.

  17. THE COMPETITION BETWEEN METHYLMERCURY RISKS AND OMEGA-3 POLYUNSATURATED FATTY ACID BENEFITS: A REVIEW OF CONFLICTING EVIDENCE ON FISH CONSUMPTION AND CARDIOVASCULAR HEALTH.

    Energy Technology Data Exchange (ETDEWEB)

    LIPFERT, F.W.; SULLIVAN, T.M.

    2006-10-31

    The health concerns of methylmercury (MeHg) contamination of seafood have recently been extended to include cardiovascular effects, especially premature mortality. Although the fatty acids (fish oils) found in most species are thought to confer a wide range of health benefits, especially to the cardiovascular system, some epidemiological studies have suggested that such benefits may be offset by adverse effects of MeHg. This comprehensive review is based on searches of the NIH MEDLINE database and compares and contrasts 145 published studies involving cardiovascular effects and exposures to mercury and other fish contaminants, intake of fatty acids including dietary supplements of fish oils, and rates of seafood consumption. Since few of these studies include adequate simultaneous measurements of all of these potential predictor variables, we summarized their effects separately, across the available studies of each, and then drew conclusions based on the aggregated findings. It is important to realize that studies of seafood consumption encompass the net effects of all of these predictor variables, but that seafood intake studies are rarely supported by human biomarker measurements that reflect the actual uptake of harmful as well as beneficial fish ingredients. As a result, exposure measurement error is an issue when comparing studies and predictor variables. It is also possible that the observed benefits of eating fish may relate more to the characteristics of the consumers than to those of the fish. We found the evidence for adverse cardiovascular effects of MeHg to be sparse and unconvincing. Studies of cardiovascular mortality show net benefits, and the findings of adverse effects are mainly limited to studies Finland at high mercury exposure levels. By contrast, a very consistent picture of beneficial effects is seen for fatty acids, after recognizing the effects of exposure uncertainties and the presence of threshold effects. Studies based on measured

  18. Augmentation Mammaplasty in Asian Women

    OpenAIRE

    Cheng, Ming-Huei; Huang, Jung-Ju

    2009-01-01

    With the rapid economic development of Southeast Asia, the demand for cosmetic surgery has increased rapidly. Breast augmentation is among the most frequently performed cosmetic procedures. However, breast augmentation still has “bad press” in Southeast Asia because of not so distant catastrophes caused by direct liquid silicone injection and “Amazing Gel” augmentations. Asian patients have special characteristics that need to be taken into consideration when performing breast augmentation. T...

  19. Augmented Reality als Bildungsenhancement?

    OpenAIRE

    Damberger, Thomas

    2015-01-01

    Die Realität, die sich mithilfe von Datenbrillen und Smartphone Applikationen in die virtuelle Welt hinein ausdehnt, erfährt eine Form des Enhancements. Ein solches Enhancement kann unter bestimmten Voraussetzungen als Bildungsenhancement verstanden werden. Der Text befasst sich mit Formen der erweiterten Realität, ferner mit dem, um was es wesentlich bei der Bildung geht und zuletzt mit den Bedingungen, die erforderlich sind, um diesem Wesentlichen mit Hilfe von augmented reality besser zum ...

  20. IMPACT OF JUTE RETTING ON NATIVE FISH DIVERSITY AND AQUATIC HEALTH OF ROADSIDE TRANSITORY WATER BODIES: AN ASSESSMENT IN EASTERN INDIA

    Directory of Open Access Journals (Sweden)

    Dipankar Ghosh

    2015-09-01

    Full Text Available Roadside transitory water bodies being manmade depressions have a great ecological and socio-economic importance from years. The effects of agricultural runoffs, jute retting, macro-phytes infestations and inadequate rainfall in changed climate often degrade transitory water bodies’ environment while the biodiversity have impacted severely because of population pressure, over exploitation and indiscriminate use of fine meshed fishing gears as a whole. Physico-chemical and biological analysis with fish species composition, relative abundance, diversity indices like species richness, evenness and Shannon-Wiener index were carried out for pre-, during and post-jute retting season and for year mean as a whole to assess impact of jute retting on the roadside transitory water body’s environmental health and indigenous fish diversity at Sahebnagar village in Nadia District, India. All the physico-chemical parameters barring biochemical oxygen demand and water transparency remained more or less same or marginally got little changed during those three seasons. As much as 19 native fish species with varied relative abundances and dominances were identified. Jute retting impacted lower native fish diversity indices like Shannon-Wiener index values (1.94 to 2.68 clearly indicated poor to moderate pollution status of the transitory water body in that area during monsoon in particular and throughout the year in general. So we opined there should be some control over the intense jute retting in the road side transitory water bodies for sustainable management of these manmade resources.

  1. Evaluation of human health risks posed by carcinogenic and non-carcinogenic multiple contaminants associated with consumption of fish from Taihu Lake, China.

    Science.gov (United States)

    Yu, Yingxin; Wang, Xinxin; Yang, Dan; Lei, Bingli; Zhang, Xiaolan; Zhang, Xinyu

    2014-07-01

    The present study estimated the human daily intake and uptake of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), polycyclic aromatic hydrocarbons (PAHs), and toxic trace elements [mercury (Hg), chromium (Cr), cadmium (Cd), and arsenic (As)] due to consumption of fish from Taihu Lake, China, and the associated potential health risks posed by these contaminants. The health risks posed by the contaminants were assessed using a risk quotient of the fish consumption rate to the maximum allowable fish consumption rate considering the contaminants for carcinogenic and non-carcinogenic effect endpoints. The results showed that fish consumption would not pose non-cancer risks. However, some species would cause a cancer risk. Relative risks of the contaminants were calculated to investigate the contaminant which posed the highest risk to humans. As a result, in view of the contaminants for carcinogenic effects, As was the contaminant which posed the highest risk to humans. However, when non-carcinogenic effects of the contaminants were considered, Hg posed the highest risk. The risk caused by PBDEs was negligible. The results demonstrated that traditional contaminants, such as As, Hg, DDTs (dichlorodiphenyltrichloroethane and its metabolites), and PCBs, require more attention in Taihu Lake than the other target contaminants. PMID:24727049

  2. Genetics Home Reference: fish-eye disease

    Science.gov (United States)

    ... Genetics Home Health Conditions fish-eye disease fish-eye disease Enable Javascript to view the expand/collapse boxes. ... Cornea and Corneal Disease Educational Resources (4 links) Disease InfoSearch: Fish-Eye Disease MalaCards: fish-eye disease Orphanet: Fish-eye ...

  3. Neurally augmented sexual function.

    Science.gov (United States)

    Meloy, S

    2007-01-01

    Neurally Augmented Sexual Function (NASF) is a technique utilizing epidural electrodes to restore and improve sexual function. Orgasmic dysfunction is common in adult women, affecting roughly one quarter of populations studied. Many male patients suffering from erectile dysfunction are not candidates for phosphdiesterase therapy due to concomitant nitrate therapy. Positioning the electrodes at roughly the level of the cauda equina allows for stimulation of somatic efferents and afferents as well as modifying sympathetic and parasympathetic activity. Our series of women treated by NASF is described. Our experience shows that the evaluation of potential candidates for both correctable causes and psychological screening are important considerations. PMID:17691397

  4. Residual levels of DDTs and PAHs in freshwater and marine fish from Hong Kong markets and their health risk assessment.

    Science.gov (United States)

    Cheung, K C; Leung, H M; Kong, K Y; Wong, M H

    2007-01-01

    Axial and ventral muscle from 10 each species of freshwater and marine fish purchased from markets in Hong Kong were analyzed for dichlorodiphenyltrichloroethane (total DDTs including DDE, DDD and DDT) and polycyclic aromatic hydrocarbons (PAHs). Among the 10 freshwater fish species, rice field eel (Monopterus albus) showed significantly higher levels of DDTs in both ventral (125 ng/g wet wt) and axial muscle (127 ng/g wet wt) than the other species. The highest concentration of PAHs was detected in catfish (Clarias fuscus), with 24.8 ng/g in ventral muscle and 9.1 ng/g in axial muscle. As to marine fish, snubnose pompano (Trachinotus blochii) showed significantly higher levels of DDT and its metabolites (1018 ng/g in ventral and 409 ng/g wet wt in axial tissues) than all other marine fish species. The overall concentrations of PAHs in marine fish species were 15.5-57.0 ng/g (axial muscle) and 18.1-118 ng/g wet wt (ventral muscle) where yellow seafin (Acanthopeyrus latus) and golden threadfin bream (Nemipterus virgatus) exhibited the highest concentrations of PAHs in the axial and ventral muscles, respectively. In general, results showed that levels of PAHs in Hong Kong market fish was low and do not expect to cause any concern for human consumption. However, the levels of DDTs in fish samples ranged from 1.10 to 1018 ng/g wet wt, and based on a fish consumption rate of 142.2g/day to calculate the screening value of 14.4 ng/g wet wt for human consumption (USEPA, 2000. Guidance for assessing chemical contaminant, data for use in fish advisories, vol. 1: fish sampling and analysis, third ed. EPA 823-R-95-007. Office of Water, Washington, DC), there were 9 out of 20 (45%) muscle samples of freshwater fish species and 14 out of 20 (70%) muscle samples of marine fish species had elevated levels of DDTs exceeded the screening value. It was also suggested to use ventral muscle for detecting concentrations of persistent organic pollutants in fish. PMID:16870232

  5. Impact of long-term use of eHealth systems in adolescents with type 1 diabetes treated with sensor-augmented pump therapy.

    Science.gov (United States)

    Schiaffini, R; Tagliente, I; Carducci, C; Ullmann, N; Ciampalini, P; Lorubbio, A; Cappa, M

    2016-07-01

    Telemedicine in diabetes includes telemonitoring and transmission of important data (self monitoring of blood glucose data, insulin therapy, pump setting, etc.) from the patient s home to the diabetic unit, with a real-time health feedback. Moreover, an eHealth approach is thought to facilitate diabetes management and to improve compliance to CSII/SAP treatment in adolescents, but to date, limited literature related to this topic is available and long-term studies are still lacking. The main aim of this study was to compare the long-term effect on glycometabolic control of eHealth intervention and traditional care in T1DM SAP-treated adolescents. In our study we demonstrated a favorable impact of monthly teleassistance on treatment compliance. Adolescents receiving frequent feedback provided by the medicalmultidisciplinary team, due to the telemonitoring, resulted more compliant in self-management of diabetes. In particular, the medical team feedback resulted in interventions on behavioral errors and insulin therapy adjustments, leading to an improved glycometabolic control. PMID:26289613

  6. AR DOC: Augmented reality documentaries

    DEFF Research Database (Denmark)

    Vistisen, Peter

    2014-01-01

    Augmented Reality Documentaries (AR DOC) er et ’lille’ Shareplay projekt (ansøgte midler <= 125.000 DKK), der af haft som sit formål at afprøve et unikt samarbejde omkring udforskningen af nye teknikker til augmented reality cross media løsninger, til at skabe engagerende publikumsformidling...... indenfor oplevelsesindustrien. Projektet har genereret ny viden omkring, hvordan fysisk og digital formidling kan understøttes via Augmented Reality som formidlingsformat....

  7. Rendering methods for augmented reality

    OpenAIRE

    Fischer, Jan

    2006-01-01

    Augmented reality (AR) has become a promising and fast-growing application of computer graphics over the course of the last years. Augmented reality systems overlay computer-generated graphical information over the view of the real world. Several main research challenges can be identified in the field of augmented reality. These are the design of advanced display devices (e.g., head-mounted displays), camera tracking, system design, user interaction, and rendering. While a major part of the p...

  8. AUGMENTATION-RELATED BRAIN PLASTICITY

    OpenAIRE

    Giovanni eDi Pino; Angelo eMaravita; Loredana eZollo; Eugenio eGuglielmelli; Vincenzo eDi Lazzaro

    2014-01-01

    Today, the anthropomorphism of the tools and the development of neural interfaces require reconsidering the concept of human-tools interaction in the framework of human augmentation. This review analyzes the plastic process that the brain undergoes when it comes into contact with augmenting artificial sensors and effectors and, on the other hand, the changes that the use of external augmenting devices produces in the brain.Hitherto, few studies investigated the neural correlates of augmentati...

  9. Augmentation-related brain plasticity

    OpenAIRE

    Di Pino, Giovanni; Maravita, Angelo; Zollo, Loredana; Guglielmelli, Eugenio; Di Lazzaro, Vincenzo

    2014-01-01

    Today, the anthropomorphism of the tools and the development of neural interfaces require reconsidering the concept of human-tools interaction in the framework of human augmentation. This review analyses the plastic process that the brain undergoes when it comes into contact with augmenting artificial sensors and effectors and, on the other hand, the changes that the use of external augmenting devices produces in the brain. Hitherto, few studies investigated the neural correlates of augmentat...

  10. Augmented Reality for Science Education

    DEFF Research Database (Denmark)

    Brandt, Harald; Nielsen, Birgitte Lund; Georgsen, Marianne;

    Augmented reality (AR) holds great promise as a learning tool. So far, however, most research has looked at the technology itself – and AR has been used primarily for commercial purposes. As a learning tool, AR supports an inquiry-based approach to science education with a high level of student...... involvement. The AR-sci-project (Augmented Reality for SCIence education) addresses the issue of applying augmented reality in developing innovative science education and enhancing the quality of science teaching and learning....

  11. Augmented Sustainability Measures for Scotland

    OpenAIRE

    John C. V. Pezzey; Nick Hanley; Karen Turner; Dugald Tinch

    2003-01-01

    We estimate and compare two empirical measures of the weak sustainability of an economy for the first time: the change in augmented green net national product (GNNP), and the interest on augmented genuine savings (GS). Yearly calculations are given for each measure for Scotland during 1992-99. Augmentation means including, using projections to 2020, production possibilities enabled by exogenous technical progress or changing terms of trade. In passing, we clarify the treatment of environmenta...

  12. Augmented Reality for Science Education

    DEFF Research Database (Denmark)

    Brandt, Harald; Nielsen, Birgitte Lund; Georgsen, Marianne;

    2015-01-01

    Augmented reality (AR) holds great promise as a learning tool. So far, however, most research has looked at the technology itself – and AR has been used primarily for commercial purposes. As a learning tool, AR supports an inquiry-based approach to science education with a high level of student...... involvement. The AR-sci-project (Augmented Reality for SCIence education) addresses the issue of applying augmented reality in developing innovative science education and enhancing the quality of science teaching and learning....

  13. Can a disease-specific education program augment self-management skills and improve Health-Related Quality of Life in people with hip or knee osteoarthritis?

    Directory of Open Access Journals (Sweden)

    Buchbinder Rachelle

    2006-11-01

    Full Text Available Abstract Background Patient education and self-management programs are offered in many countries to people with chronic conditions such as osteoarthritis (OA. The most well-known is the disease-specific Stanford Arthritis Self-Management Program (ASMP. While Australian and international clinical guidelines promote the concept of self-management for OA, there is currently little evidence to support the use of the ASMP. Several meta-analyses have reported that arthritis self-management programs had minimal or no effect on reducing pain and disability. However, previous studies have had methodological shortcomings including the use of outcome measures which do not accurately reflect program goals. Additionally, limited cost-effectiveness analyses have been undertaken and the cost-utility of the program has not been explored. Methods/design This study is a randomised controlled trial to determine the efficacy (in terms of Health-Related Quality of Life and self-management skills and cost-utility of a 6-week group-based Stanford ASMP for people with hip or knee OA. Six hundred participants referred to an orthopaedic surgeon or rheumatologist for hip or knee OA will be recruited from outpatient clinics at 2 public hospitals and community-based private practices within 2 private hospital settings in Victoria, Australia. Participants must be 18 years or over, fluent in English and able to attend ASMP sessions. Exclusion criteria include cognitive dysfunction, previous participation in self-management programs and placement on a waiting list for joint replacement surgery or scheduled joint replacement. Eligible, consenting participants will be randomised to an intervention group (who receive the ASMP and an arthritis self-management book or a control group (who receive the book only. Follow-up will be at 6 weeks, 3 months and 12 months using standardised self-report measures. The primary outcome is Health-Related Quality of Life at 12 months, measured

  14. Augmented reality system

    Science.gov (United States)

    Lin, Chien-Liang; Su, Yu-Zheng; Hung, Min-Wei; Huang, Kuo-Cheng

    2010-08-01

    In recent years, Augmented Reality (AR)[1][2][3] is very popular in universities and research organizations. The AR technology has been widely used in Virtual Reality (VR) fields, such as sophisticated weapons, flight vehicle development, data model visualization, virtual training, entertainment and arts. AR has characteristics to enhance the display output as a real environment with specific user interactive functions or specific object recognitions. It can be use in medical treatment, anatomy training, precision instrument casting, warplane guidance, engineering and distance robot control. AR has a lot of vantages than VR. This system developed combines sensors, software and imaging algorithms to make users feel real, actual and existing. Imaging algorithms include gray level method, image binarization method, and white balance method in order to make accurate image recognition and overcome the effects of light.

  15. NASA Communications Augmentation network

    Science.gov (United States)

    Omidyar, Guy C.; Butler, Thomas E.; Laios, Straton C.

    1990-09-01

    The NASA Communications (Nascom) Division of the Mission Operations and Data Systems Directorate (MO&DSD) is to undertake a major initiative to develop the Nascom Augmentation (NAUG) network to achieve its long-range service objectives for operational data transport to support the Space Station Freedom Program, the Earth Observing System (EOS), and other projects. The NAUG is the Nascom ground communications network being developed to accommodate the operational traffic of the mid-1990s and beyond. The NAUG network development will be based on the Open Systems Interconnection Reference Model (OSI-RM). This paper describes the NAUG network architecture, subsystems, topology, and services; addresses issues of internetworking the Nascom network with other elements of the Space Station Information System (SSIS); discusses the operations environment. This paper also notes the areas of related research and presents the current conception of how the network will provide broadband services in 1998.

  16. NAESA Augmentation Pilot Project

    Science.gov (United States)

    Hoover, John J.

    1998-01-01

    This project was one project within the Native American Earth and Space Academy (NAESA). NAESA is a national initiative comprised of several organizations that support programs which focus on 1) enhancing the technological, scientific and pedagogical skills of K-14 teachers who instruct Native Americans, 2) enhancing the understanding and applications of science, technology, and engineering of college-bound Native Americans and teaching them general college "survival skills" (e.g., test taking, time management, study habits), 3) enhancing the scientific and pedagogical skills of the faculty of tribally-controllcd colleges and community colleges with large Native American enrollments, and 4) strengthening the critical relationships between students, their parents, tribal elders, and their communities. This Augmentation Pilot Project focused on the areas of community-school alliances and intemet technology use in teaching and learning and daily living addressing five major objectives.

  17. Augmented Virtual Reality Laboratory

    Science.gov (United States)

    Tully-Hanson, Benjamin

    2015-01-01

    Real time motion tracking hardware has for the most part been cost prohibitive for research to regularly take place until recently. With the release of the Microsoft Kinect in November 2010, researchers now have access to a device that for a few hundred dollars is capable of providing redgreenblue (RGB), depth, and skeleton data. It is also capable of tracking multiple people in real time. For its original intended purposes, i.e. gaming, being used with the Xbox 360 and eventually Xbox One, it performs quite well. However, researchers soon found that although the sensor is versatile, it has limitations in real world applications. I was brought aboard this summer by William Little in the Augmented Virtual Reality (AVR) Lab at Kennedy Space Center to find solutions to these limitations.

  18. Magnetohydrodynamic Augmented Propulsion Experiment

    Science.gov (United States)

    Litchford, Ron J.

    2008-01-01

    Over the past several years, efforts have been under way to design and develop an operationally flexible research facility for investigating the use of cross-field MHD accelerators as a potential thrust augmentation device for thermal propulsion systems. The baseline configuration for this high-power experimental facility utilizes a 1.5-MWe multi-gas arc-heater as a thermal driver for a 2-MWe MHD accelerator, which resides in a large-bore 2-tesla electromagnet. A preliminary design study using NaK seeded nitrogen as the working fluid led to an externally diagonalized segmented MHD channel configuration based on an expendable heat-sink design concept. The current status report includes a review of engineering/design work and performance optimization analyses and summarizes component hardware fabrication and development efforts, preliminary testing results, and recent progress toward full-up assembly and testing

  19. Fish Hematology and Associated Disorders.

    Science.gov (United States)

    Grant, Krystan R

    2015-09-01

    Fish health is a growing concern as pets, education, and aquaculture evolves. For the veterinary staff, fish handling, diagnostics, medicine, and surgery may require specialized training and equipment in comparison with terrestrial and arboreal animals, simply because of their aquatic nature and diversity. Fish hematology is one diagnostic tool that may not require additional equipment, may be inexpensive, and provide useful information in guiding treatment options. Challenges involving hematology may include handling and restraint, venipuncture, evaluation, and interpretation. In this article, strategies for these challenges are discussed for teleost (bony fish) and elasmobranch (cartilaginous fish) fish types. PMID:26297413

  20. Hazard assessment of metals in invasive fish species of the Yamuna River, India in relation to bioaccumulation factor and exposure concentration for human health implications.

    Science.gov (United States)

    Singh, Atul K; Srivastava, Sharad C; Verma, Pankaj; Ansari, Abubakar; Verma, Ambrish

    2014-06-01

    Monitoring of heavy metals was conducted in the Yamuna River considering bioaccumulation factor, exposure concentration, and human health implications which showed contamination levels of copper (Cu), lead (Pb), nickel (Ni), and chromium (Cr) and their dispersion patterns along the river. Largest concentration of Pb in river water was 392 μg L(-1); Cu was 392 μg L(-1) at the extreme downstream, Allahabad and Ni was 146 μg L(-1) at midstream, Agra. Largest concentration of Cu was 617 μg kg(-1), Ni 1,621 μg kg(-1) at midstream while Pb was 1,214 μg kg(-1) at Allahabad in surface sediment. The bioconcentration of Cu, Pb, Ni, and Cr was observed where the largest accumulation of Pb was 2.29 μg kg(-1) in Oreochromis niloticus and 1.55 μg kg(-1) in Cyprinus carpio invaded at Allahabad while largest concentration of Ni was 174 μg kg(-1) in O. niloticus and 124 μg kg(-1) in C. carpio in the midstream of the river. The calculated values of hazard index (HI) for Pb was found more than one which indicated human health concern. Carcinogenic risk value for Ni was again high i.e., 17.02 × 10(-4) which was larger than all other metals studied. The results of this study indicated bioconcentration in fish due to their exposures to heavy metals from different routes which had human health risk implications. Thus, regular environmental monitoring of heavy metal contamination in fish is advocated for assessing food safety since health risk may be associated with the consumption of fish contaminated through exposure to a degraded environment. PMID:24526612

  1. Content determination and health risk assessment of polycyclic aromatic hydrocarbon in fish tissue samples from Perhentian Island, Malaysia

    International Nuclear Information System (INIS)

    The concentration of polycyclic aromatic hydrocarbon (PAH) in three fish species with different feeding habits and habitat for examples Lolong (Selar boops), Kerisi (Nemipterus peronii) dan Mengkarong (Trachinocephalus myops) from offshore of Perhentian Island, Malaysia was determined. Three individuals from each species were taken at random and the PAHs contents were determined in the muscles. Ten PAH compounds, phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(e)pyrene and dibenzo(a,h)anthracene were determined. PAH in fish tissues was extracted using Soxhlet method and detected using gas chromatography - mass spectrometry (GC-MS). The level of PAH in fish tissue ranged from 17.89 - 42.18 ng/ g wet weight and 393.98 - 511.07 ng/ g lipid weight. The order of PAH concentration in wet weight was Kerisi (511.07 ng/ g)> Mengkarong (409.50 ng/ g)> Lolong (393.98 ng/ g) but in terms of lipid weight, the order was Kerisi (511.07 ng/ g)> Mengkarong (409.50 ng/ g)> Lolong (393.98 ng/ g). Kerisi has the lowest lipid content of 3.5 % compared to Lolong (6.5 %) and Mengkarong (10.3 %). No obvious significant difference (p > 0.05) of PAH levels in three fish species was observed (ANOVA, p > 0.05). There was no significant relationship between lipid content and PAH accumulation in fish. Based on fish consumption rate of 142.2 g/ day, the Potency Equivalent Concentration (PEC), which is a carcinogenic potency value for PAH, was found to be ranged from 0.41 - 0.63 ng/ g wet weight in all three species of fish. This value is below the limit set by USEPA, which is 0.67 ng/ g wet weight for human consumption. (author)

  2. Augmented Reality Comes to Physics

    Science.gov (United States)

    Buesing, Mark; Cook, Michael

    2013-01-01

    Augmented reality (AR) is a technology used on computing devices where processor-generated graphics are rendered over real objects to enhance the sensory experience in real time. In other words, what you are really seeing is augmented by the computer. Many AR games already exist for systems such as Kinect and Nintendo 3DS and mobile apps, such as…

  3. Vertebral Augmentation: State of the Art

    Science.gov (United States)

    Nabhane, Linda; Issa El Khoury, Fouad; Kreichati, Gaby; El Rachkidi, Rami

    2016-01-01

    Osteoporotic vertebral compression fractures (OVF) are an increasing public health problem. Cement augmentation (vertebroplasty of kyphoplasty) helps stabilize painful OVF refractory to medical treatment. This stabilization is thought to improve pain and functional outcome. Vertebroplasty consists of injecting cement into a fractured vertebra using a percutaneous transpedicular approach. Balloon kyphoplasty uses an inflatable balloon prior to injecting the cement. Although kyphoplasty is associated with significant improvement of local kyphosis and less cement leakage, this does not result in long-term clinical and functional improvement. Moreover, vertebroplasty is favored by some due to the high cost of kyphoplasty. The injection of cement increases the stiffness of the fracture vertebrae. This can lead, in theory, to adjacent OVF. However, many studies found no increase of subsequent fracture when comparing medical treatment to cement augmentation. Kyphoplasty can have a protective effect due to restoration of sagittal balance. PMID:27114782

  4. Vertebral Augmentation: State of the Art.

    Science.gov (United States)

    Sebaaly, Amer; Nabhane, Linda; Issa El Khoury, Fouad; Kreichati, Gaby; El Rachkidi, Rami

    2016-04-01

    Osteoporotic vertebral compression fractures (OVF) are an increasing public health problem. Cement augmentation (vertebroplasty of kyphoplasty) helps stabilize painful OVF refractory to medical treatment. This stabilization is thought to improve pain and functional outcome. Vertebroplasty consists of injecting cement into a fractured vertebra using a percutaneous transpedicular approach. Balloon kyphoplasty uses an inflatable balloon prior to injecting the cement. Although kyphoplasty is associated with significant improvement of local kyphosis and less cement leakage, this does not result in long-term clinical and functional improvement. Moreover, vertebroplasty is favored by some due to the high cost of kyphoplasty. The injection of cement increases the stiffness of the fracture vertebrae. This can lead, in theory, to adjacent OVF. However, many studies found no increase of subsequent fracture when comparing medical treatment to cement augmentation. Kyphoplasty can have a protective effect due to restoration of sagittal balance. PMID:27114782

  5. Mercury bioaccumulation in cartilaginous fishes from Southern New England coastal waters: contamination from a trophic ecology and human health perspective.

    Science.gov (United States)

    Taylor, David L; Kutil, Nicholas J; Malek, Anna J; Collie, Jeremy S

    2014-08-01

    This study examined total mercury (Hg) concentrations in cartilaginous fishes from Southern New England coastal waters, including smooth dogfish (Mustelus canis), spiny dogfish (Squalus acanthias), little skate (Leucoraja erinacea), and winter skate (Leucoraja ocellata). Total Hg in dogfish and skates were positively related to their respective body size and age, indicating Hg bioaccumulation in muscle tissue. There were also significant inter-species differences in Hg levels (mean ± 1 SD, mg Hg/kg dry weight, ppm): smooth dogfish (3.3 ± 2.1 ppm; n = 54) > spiny dogfish (1.1 ± 0.7 ppm; n = 124) > little skate (0.4 ± 0.3 ppm; n = 173) ∼ winter skate (0.3 ± 0.2 ppm; n = 148). The increased Hg content of smooth dogfish was attributed to its upper trophic level status, determined by stable nitrogen (δ(15)N) isotope analysis (mean δ(15)N = 13.2 ± 0.7‰), and the consumption of high Hg prey, most notably cancer crabs (0.10 ppm). Spiny dogfish had depleted δ(15)N signatures (11.6 ± 0.8‰), yet demonstrated a moderate level of contamination by foraging on pelagic prey with a range of Hg concentrations, e.g., in order of dietary importance, butterfish (Hg = 0.06 ppm), longfin squid (0.17 ppm), and scup (0.11 ppm). Skates were low trophic level consumers (δ(15)N = 11.9-12.0‰) and fed mainly on amphipods, small decapods, and polychaetes with low Hg concentrations (0.05-0.09 ppm). Intra-specific Hg concentrations were directly related to δ(15)N and carbon (δ(13)C) isotope signatures, suggesting that Hg biomagnifies across successive trophic levels and foraging in the benthic trophic pathway increases Hg exposure. From a human health perspective, 87% of smooth dogfish, 32% of spiny dogfish, and risk. PMID:25081850

  6. Environmental and human health risk assessment of organic micro-pollutants occurring in a Spanish marine fish farm

    International Nuclear Information System (INIS)

    In this work the risk posed to seawater organisms, predators and humans is assessed, as a consequence of exposure to 12 organic micro-pollutants, namely metronidazole, trimethoprim, erythromycin, simazine, flumequine, carbaryl, atrazine, diuron, terbutryn, irgarol, diphenyl sulphone (DPS) and 2-thiocyanomethylthiobenzothiazole (TCMTB). The risk assessment study is based on a 1-year monitoring study at a Spanish marine fish farm, involving passive sampling techniques. The results showed that the risk threshold for irgarol concerning seawater organisms is exceeded. On the other hand, the risk to predators and especially humans through consumption of fish is very low, due to the low bioconcentration potential of the substances assessed. - Exposure and effects of twelve organic micro-pollutants are evaluated at a Spanish fish farm.

  7. Environmental and human health risk assessment of organic micro-pollutants occurring in a Spanish marine fish farm

    Energy Technology Data Exchange (ETDEWEB)

    Munoz, Ivan, E-mail: ivanmuno@ual.e [Departamento de Hidrogeologia y Quimica Analitica, Universidad de Almeria, 04120 Almeria (Spain); Martinez Bueno, Maria J., E-mail: mjbueno@ual.e [Departamento de Hidrogeologia y Quimica Analitica, Universidad de Almeria, 04120 Almeria (Spain); Agueera, Ana, E-mail: aaguera@ual.e [Departamento de Hidrogeologia y Quimica Analitica, Universidad de Almeria, 04120 Almeria (Spain); Fernandez-Alba, Amadeo R., E-mail: amadeo@ual.e [Departamento de Hidrogeologia y Quimica Analitica, Universidad de Almeria, 04120 Almeria (Spain)

    2010-05-15

    In this work the risk posed to seawater organisms, predators and humans is assessed, as a consequence of exposure to 12 organic micro-pollutants, namely metronidazole, trimethoprim, erythromycin, simazine, flumequine, carbaryl, atrazine, diuron, terbutryn, irgarol, diphenyl sulphone (DPS) and 2-thiocyanomethylthiobenzothiazole (TCMTB). The risk assessment study is based on a 1-year monitoring study at a Spanish marine fish farm, involving passive sampling techniques. The results showed that the risk threshold for irgarol concerning seawater organisms is exceeded. On the other hand, the risk to predators and especially humans through consumption of fish is very low, due to the low bioconcentration potential of the substances assessed. - Exposure and effects of twelve organic micro-pollutants are evaluated at a Spanish fish farm.

  8. Magnetohydrodynamic Augmented Propulsion Experiment

    Science.gov (United States)

    Litchford, Ron J.; Cole, John; Lineberry, John; Chapman, Jim; Schmidt, Harold; Cook, Stephen (Technical Monitor)

    2002-01-01

    A fundamental obstacle to routine space access is the specific energy limitations associated with chemical fuels. In the case of vertical take-off, the high thrust needed for vertical liftoff and acceleration to orbit translates into power levels in the 10 GW range. Furthermore, useful payload mass fractions are possible only if the exhaust particle energy (i.e., exhaust velocity) is much greater than that available with traditional chemical propulsion. The electronic binding energy released by the best chemical reactions (e.g., LOX/LH2 for example, is less than 2 eV per product molecule (approx. 1.8 eV per H2O molecule), which translates into particle velocities less than 5 km/s. Useful payload fractions, however, will require exhaust velocities exceeding 15 km/s (i.e., particle energies greater than 20 eV). As an added challenge, the envisioned hypothetical RLV (reusable launch vehicle) should accomplish these amazing performance feats while providing relatively low acceleration levels to orbit (2-3g maximum). From such fundamental considerations, it is painfully obvious that planned and current RLV solutions based on chemical fuels alone represent only a temporary solution and can only result in minor gains, at best. What is truly needed is a revolutionary approach that will dramatically reduce the amount of fuel and size of the launch vehicle. This implies the need for new compact high-power energy sources as well as advanced accelerator technologies for increasing engine exhaust velocity. Electromagnetic acceleration techniques are of immense interest since they can be used to circumvent the thermal limits associated with conventional propulsion systems. This paper describes the Magnetohydrodynamic Augmented Propulsion Experiment (MAPX) being undertaken at NASA Marshall Space Flight Center (MSFC). In this experiment, a 1-MW arc heater is being used as a feeder for a 1-MW magnetohydrodynamic (MHD) accelerator. The purpose of the experiment is to demonstrate

  9. Environmental and human health risk assessment of organic micro-pollutants occurring in a Spanish marine fish farm.

    Science.gov (United States)

    Muñoz, Ivan; Martínez Bueno, María J; Agüera, Ana; Fernández-Alba, Amadeo R

    2010-05-01

    In this work the risk posed to seawater organisms, predators and humans is assessed, as a consequence of exposure to 12 organic micro-pollutants, namely metronidazole, trimethoprim, erythromycin, simazine, flumequine, carbaryl, atrazine, diuron, terbutryn, irgarol, diphenyl sulphone (DPS) and 2-thiocyanomethylthiobenzothiazole (TCMTB). The risk assessment study is based on a 1-year monitoring study at a Spanish marine fish farm, involving passive sampling techniques. The results showed that the risk threshold for irgarol concerning seawater organisms is exceeded. On the other hand, the risk to predators and especially humans through consumption of fish is very low, due to the low bioconcentration potential of the substances assessed. PMID:19932535

  10. Adapting Information Through Tangible Augmented Reality Interfaces

    OpenAIRE

    Sinclair, Patrick; Martinez, Kirk

    2004-01-01

    Tangible augmented reality interfaces offer a hands on approach for examining objects and exploring the associated information. We describe two tangible augmented reality interfaces that can expose the adaptation of information presented to users about objects in augmented reality environments.

  11. Control Augmented Structural Synthesis

    Science.gov (United States)

    Lust, Robert V.; Schmit, Lucien A.

    1988-01-01

    A methodology for control augmented structural synthesis is proposed for a class of structures which can be modeled as an assemblage of frame and/or truss elements. It is assumed that both the plant (structure) and the active control system dynamics can be adequately represented with a linear model. The structural sizing variables, active control system feedback gains and nonstructural lumped masses are treated simultaneously as independent design variables. Design constraints are imposed on static and dynamic displacements, static stresses, actuator forces and natural frequencies to ensure acceptable system behavior. Multiple static and dynamic loading conditions are considered. Side constraints imposed on the design variables protect against the generation of unrealizable designs. While the proposed approach is fundamentally more general, here the methodology is developed and demonstrated for the case where: (1) the dynamic loading is harmonic and thus the steady state response is of primary interest; (2) direct output feedback is used for the control system model; and (3) the actuators and sensors are collocated.

  12. Zion Augmented Reality Application (ZARA): An Augmented Heritage Prototype

    OpenAIRE

    Odland, Johannes Johannesen

    2007-01-01

    This paper describes the investigation and development of a virtual heritage application that employs augmented reality to disseminate a model of the Zion castle. The developed system is a flexible prototype that leverages several open source frameworks and applications.

  13. Augmented Reality Comes to Physics

    Science.gov (United States)

    Buesing, Mark; Cook, Michael

    2013-04-01

    Augmented reality (AR) is a technology used on computing devices where processor-generated graphics are rendered over real objects to enhance the sensory experience in real time. In other words, what you are really seeing is augmented by the computer. Many AR games already exist for systems such as Kinect and Nintendo 3DS and mobile apps, such as Tagwhat and Star Chart (a must for astronomy class). The yellow line marking first downs in a televised football game2 and the enhanced puck that makes televised hockey easier to follow3 both use augmented reality to do the job.

  14. Understanding augmented reality concepts and applications

    CERN Document Server

    Craig, Alan B

    2013-01-01

    Augmented reality is not a technology. Augmented reality is a medium. Likewise, a book on augmented reality that only addresses the technology that is required to support the medium of augmented reality falls far short of providing the background that is needed to produce, or critically consume augmented reality applications. One reads a book. One watches a movie. One experiences augmented reality. Understanding Augmented Reality addresses the elements that are required to create compelling augmented reality experiences. The technology that supports

  15. Repeated vertebral augmentation for new vertebral compression fractures of postvertebral augmentation patients: a nationwide cohort study

    Directory of Open Access Journals (Sweden)

    Liang CL

    2015-03-01

    Full Text Available Cheng-Loong Liang,1 Hao-Kwan Wang,1 Fei-Kai Syu,2 Kuo-Wei Wang,1 Kang Lu,1 Po-Chou Liliang1 1Department of Neurosurgery, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan; 2Department of Pharmacy, China Medical University Hospital, Taichung City, Taiwan Purpose: Postvertebral augmentation vertebral compression fractures are common; repeated vertebral augmentation is usually performed for prompt pain relief. This study aimed to evaluate the incidence and risk factors of repeat vertebral augmentation.Methods: We performed a retrospective, nationwide, population-based longitudinal observation study, using the National Health Insurance Research Database (NHIRD of Taiwan. All patients who received vertebral augmentation for vertebral compression fractures were evaluated. The collected data included patient characteristics (demographics, comorbidities, and medication exposure and repeat vertebral augmentation. Kaplan–Meier and stratified Cox proportional hazard regressions were performed for analyses.Results: The overall incidence of repeat vertebral augmentation was 11.3% during the follow-up until 2010. Patients with the following characteristics were at greater risk for repeat vertebral augmentation: female sex (AOR=1.24; 95% confidence interval [CI]: 1.10–2.36, advanced age (AOR=1.60; 95% CI: 1.32–2.08, diabetes mellitus (AOR=4.31; 95% CI: 4.05–5.88, cerebrovascular disease (AOR=4.09; 95% CI: 3.44–5.76, dementia (AOR=1.97; 95% CI: 1.69–2.33, blindness or low vision (AOR=3.72; 95% CI: 2.32–3.95, hypertension (AOR=2.58; 95% CI: 2.35–3.47, and hyperlipidemia (AOR=2.09; 95% CI: 1.67–2.22. Patients taking calcium/ vitamin D (AOR=2.98; 95% CI: 1.83–3.93, bisphosphonates (AOR=2.11; 95% CI: 1.26–2.61, or calcitonin (AOR=4.59; 95% CI: 3.40–5.77 were less likely to undergo repeat vertebral augmentation; however, those taking steroids (AOR=7.28; 95% CI: 6.32–8.08, acetaminophen (AOR=3.54; 95% CI: 2.75–4.83, or nonsteroidal

  16. Augmenter of liver regeneration

    Directory of Open Access Journals (Sweden)

    Gandhi Chandrashekhar R

    2012-07-01

    Full Text Available Abstract ‘Augmenter of liver regeneration’ (ALR (also known as hepatic stimulatory substance or hepatopoietin was originally found to promote growth of hepatocytes in the regenerating or injured liver. ALR is expressed ubiquitously in all organs, and exclusively in hepatocytes in the liver. ALR, a survival factor for hepatocytes, exhibits significant homology with ERV1 (essential for respiration and viability protein that is essential for the survival of the yeast, Saccharomyces cerevisiae. ALR comprises 198 to 205 amino acids (approximately 22 kDa, but is post-translationally modified to three high molecular weight species (approximately 38 to 42 kDa found in hepatocytes. ALR is present in mitochondria, cytosol, endoplasmic reticulum, and nucleus. Mitochondrial ALR may be involved in oxidative phosphorylation, but also functions as sulfhydryl oxidase and cytochrome c reductase, and causes Fe/S maturation of proteins. ALR, secreted by hepatocytes, stimulates synthesis of TNF-α, IL-6, and nitric oxide in Kupffer cells via a G-protein coupled receptor. While the 22 kDa rat recombinant ALR does not stimulate DNA synthesis in hepatocytes, the short form (15 kDa of human recombinant ALR was reported to be equipotent as or even stronger than TGF-α or HGF as a mitogen for hepatocytes. Altered serum ALR levels in certain pathological conditions suggest that it may be a diagnostic marker for liver injury/disease. Although ALR appears to have multiple functions, the knowledge of its role in various organs, including the liver, is extremely inadequate, and it is not known whether different ALR species have distinct functions. Future research should provide better understanding of the expression and functions of this enigmatic molecule.

  17. Hydrodynamics of undulatory fish schooling in lateral configurations

    CERN Document Server

    Zhang, Li Jeany

    2010-01-01

    The thrust benefits of lateral configurations of two-dimensional undulating fish-like bodies are investigated using high-fidelity numerical simulation. The solution of the Navier--Stokes equations is carried out with a viscous vortex particle method. Configurations of tethered pairs of fish arranged side by side are studied by varying the lateral separation distance and relative phase difference. It is shown that, in mirroring symmetry, the fish in the pair augment each other's thrust even at relatively large separations (up to ten body lengths). At small distances, this augmentation is primarily brought about by a peristaltic pumping in the gap between the fish, whereas at larger distances, the thrust is affected by subtle changes in the vortex shedding at the tail due to interactions with the other fish. In cases without symmetric undulation, one fish always draws more benefit from the interaction than the other. Finally, lateral configurations with three fish are studied with mirroring symmetry between nei...

  18. Effective Augmentation of Complex Networks.

    Science.gov (United States)

    Wang, Jinjian; Yu, Xinghuo; Stone, Lewi

    2016-01-01

    Networks science plays an enormous role in many aspects of modern society from distributing electrical power across nations to spreading information and social networking amongst global populations. While modern networks constantly change in size, few studies have sought methods for the difficult task of optimising this growth. Here we study theoretical requirements for augmenting networks by adding source or sink nodes, without requiring additional driver-nodes to accommodate the change i.e., conserving structural controllability. Our "effective augmentation" algorithm takes advantage of clusters intrinsic to the network topology, and permits rapidly and efficient augmentation of a large number of nodes in one time-step. "Effective augmentation" is shown to work successfully on a wide range of model and real networks. The method has numerous applications (e.g. study of biological, social, power and technological networks) and potentially of significant practical and economic value. PMID:27165120

  19. Mersiline mesh in premaxillary augmentation.

    Science.gov (United States)

    Foda, Hossam M T

    2005-01-01

    Premaxillary retrusion may distort the aesthetic appearance of the columella, lip, and nasal tip. This defect is characteristically seen in, but not limited to, patients with cleft lip nasal deformity. This study investigated 60 patients presenting with premaxillary deficiencies in which Mersiline mesh was used to augment the premaxilla. All the cases had surgery using the external rhinoplasty technique. Two methods of augmentation with Mersiline mesh were used: the Mersiline roll technique, for the cases with central symmetric deficiencies, and the Mersiline packing technique, for the cases with asymmetric deficiencies. Premaxillary augmentation with Mersiline mesh proved to be simple technically, easy to perform, and not associated with any complications. Periodic follow-up evaluation for a mean period of 32 months (range, 12-98 months) showed that an adequate degree of premaxillary augmentation was maintained with no clinically detectable resorption of the mesh implant. PMID:15959688

  20. Traditional Practicing with Arsenic Rich Water in Fish Industries Leads to Health Hazards in West Bengal and North-Eastern States of India

    Science.gov (United States)

    Kashyap, C. A.

    2014-12-01

    The supply of good quality food is main necessity for economic and social health of urban and rural population throughout the globe. This study comes to know the severity of As in the west Bengal and north-eastern states of the India. Over the 75% large population of India lives in villages and associated with farming and its related work. West Bengal is the densest populated area of India, fish and rice is the staple food as well as in north-eastern states. For the fulfil demand of fish large population the area are used fisheries as the business. Arsenic contamination in ground water is major growing threat to worldwide drinking water resources. High As contamination in water have been reported in many parts of the world Chandrasekharam et al., 2001; Smedley and Kinniburgh, 2002; Farooq et al., 2010). In context to West Bengal and north-east states of India arsenic is main problem in the food chain. These areas are very rich in arsenic many fold higher concentrations of Arsenic than their respective WHO permissible limits have been reported in the water. Over the 36 million people in Bengal delta are at risk due to drinking of As contaminated water (Nordstrom, 2002). The highest concentration of arsenic (535 μg/L Chandrashekhar et al. 2012) was registered from Ngangkha Lawai Mamang Leikai area of Bishnupur district which is fifty fold of the WHO limit for arsenic and tenfold of Indian permissible limit. With the continuous traditional practicing (As rich water pond) and untreated arsenic rich water in fish industries leads to health hazards. A sustainable development in aquaculture should comprise of various fields including environmental, social, cultural and economic aspects. A scientific study has to be needed for the overcome on this problem and rain harvested water may be used for reduce the arsenic problems in fisheries.

  1. Simultaneous breast augmentation and mastopexy

    OpenAIRE

    Whidden, Peter G

    2003-01-01

    The results of combining breast augmentation and mastopexy are less predictable than those associated with mastopexy or augmentation mammoplasty alone. A method of breast skin envelope reduction is presented that allows the surgeon performing mastopexy to preview the final breast shape before committing to skin resection. This method, first described in 1978, has proven to be technically versatile and reproducible, and applicable not only to moderate (second degree) and severe (third degree) ...

  2. EFSA NDA Panel (EFSA Panel on Dietetic Products, Nutrition and Allergies), 2014. Scientific Opinion on health benefits of seafood (fish and shellfish) consumption in relation to health risks associated with exposure to methylmercury

    DEFF Research Database (Denmark)

    Tetens, Inge

    mercury and methylmercury in food as relevant for the assessment. These included the effects of seafood consumption during pregnancy on functional outcomes of children’s neurodevelopment and the effects of seafood consumption on cardiovascular disease risk in adults. The Panel concluded that consumption......Following a request from the European Commission to address the risks and benefits as regards fish/seafood consumption related to relevant beneficial substances (e.g. nutrients such as n-3 long-chain polyunsaturated fatty acids) and the contaminant methylmercury, the Panel on Dietetic Products...... effects of seafood consumption in relation to health outcomes and population subgroups that have been identified by the FAO/WHO Joint Expert Consultation on the Risks and Benefits of Fish Consumption and/or the EFSA Panel on Contaminants in the context of a risk assessment related to the presence of...

  3. DHA-Containing Oilseed: A Timely Solution for the Sustainability Issues Surrounding Fish Oil Sources of the Health-Benefitting Long-Chain Omega-3 Oils

    Directory of Open Access Journals (Sweden)

    Soressa M. Kitessa

    2014-05-01

    Full Text Available Benefits of long-chain (≥C20 omega-3 oils (LC omega-3 oils for reduction of the risk of a range of disorders are well documented. The benefits result from eicosapentaenoic acid (EPA and docosahexaenoic acid (DHA; optimal intake levels of these bioactive fatty acids for maintenance of normal health and prevention of diseases have been developed and adopted by national and international health agencies and science bodies. These developments have led to increased consumer demand for LC omega-3 oils and, coupled with increasing global population, will impact on future sustainable supply of fish. Seafood supply from aquaculture has risen over the past decades and it relies on harvest of wild catch fisheries also for its fish oil needs. Alternate sources of LC omega-3 oils are being pursued, including genetically modified soybean rich in shorter-chain stearidonic acid (SDA, 18:4ω3. However, neither oils from traditional oilseeds such as linseed, nor the SDA soybean oil have shown efficient conversion to DHA. A recent breakthrough has seen the demonstration of a land plant-based oil enriched in DHA, and with omega-6 PUFA levels close to that occurring in marine sources of EPA and DHA. We review alternative sources of DHA supply with emphasis on the need for land plant oils containing EPA and DHA.

  4. DHA-containing oilseed: a timely solution for the sustainability issues surrounding fish oil sources of the health-benefitting long-chain omega-3 oils.

    Science.gov (United States)

    Kitessa, Soressa M; Abeywardena, Mahinda; Wijesundera, Chakra; Nichols, Peter D

    2014-05-01

    Benefits of long-chain (≥C20) omega-3 oils (LC omega-3 oils) for reduction of the risk of a range of disorders are well documented. The benefits result from eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA); optimal intake levels of these bioactive fatty acids for maintenance of normal health and prevention of diseases have been developed and adopted by national and international health agencies and science bodies. These developments have led to increased consumer demand for LC omega-3 oils and, coupled with increasing global population, will impact on future sustainable supply of fish. Seafood supply from aquaculture has risen over the past decades and it relies on harvest of wild catch fisheries also for its fish oil needs. Alternate sources of LC omega-3 oils are being pursued, including genetically modified soybean rich in shorter-chain stearidonic acid (SDA, 18:4ω3). However, neither oils from traditional oilseeds such as linseed, nor the SDA soybean oil have shown efficient conversion to DHA. A recent breakthrough has seen the demonstration of a land plant-based oil enriched in DHA, and with omega-6 PUFA levels close to that occurring in marine sources of EPA and DHA. We review alternative sources of DHA supply with emphasis on the need for land plant oils containing EPA and DHA. PMID:24858407

  5. Freegaming: Mobile, Collaborative, Adaptive and Augmented Exergaming

    Directory of Open Access Journals (Sweden)

    Levent Görgü

    2012-01-01

    Full Text Available Addressing the obesity epidemic that plagues many societies remains an outstanding public health issue. One innovative approach to addressing this problem is Exergaming. A combination of Exercise and Gaming, the objective is to motivate people participate in exercise regimes, usually in their home environment. In this article a more holistic interpretation of this exercise paradigm is proposed. Freegaming augments Exergaming in a number of key dimensions but especially through the promotion of games in outdoor mobile contexts and within a social environment. The design and implementation of a platform for Freegaming is described and illustrated through the description of a sample game.

  6. Fish intake, erythrocyte n-3 fatty acid status and metabolic health in Danish adolescent girls and boys

    DEFF Research Database (Denmark)

    Lauritzen, Lotte; Harsløf, Laurine B. S.; Hellgren, Lars;

    2012-01-01

    the effects of n-3 LCPUFA in adolescence. The present study examines associations between fish intake (assessed by a 7 d pre-coded food diary), erythrocyte (RBC) DHA status (analysed by GC) and metabolic syndrome measures (anthropometry, blood pressure and plasma lipids, insulin and glucose) in 109 17...... increased fasting insulin (P¼0·018), but no adverse association was observed with the mean metabolic syndrome z-score. Overall, the present study showed the expected association between fish intake and RBC-DHA, which in contrast to our expectations tended to be associated with a poorer metabolic profile......Marine n-3 long-chain PUFA (n-3 LCPUFA) may have a beneficial effect on several aspects of the metabolic syndrome (dyslipidaemia, insulin resistance, hypertension and abdominal obesity). The metabolic syndrome is increasing in prevalence during adolescence, but only few studies have investigated...

  7. Monitoring and assessment of water health quality in the Tajan River, Iran using physicochemical, fish and macroinvertebrates indices

    OpenAIRE

    Aazami, J.; S. Kosten; Abdoli, A.; Sohrabi, H; Brink, van den, L.

    2015-01-01

    Background - Nowadays, aquatic organisms are used as bio-indicators to assess ecological water quality in western regions, but have hardly been used in an Iranian context. We, therefore, evaluated the suitability of several indices to assess the water quality for an Iranian case study. Methods - Measured data on biotic (fish and macroinvertebrates) and abiotic elements (28 physicochemical and habitat parameters), were used to calculate six indices for assessment of water quality and the impac...

  8. Pure Laparoscopic Augmentation Ileocystoplasty

    Directory of Open Access Journals (Sweden)

    Rafael B. Rebouças

    2014-12-01

    Full Text Available Introduction Guillain-Barre syndrome is an acute neuropathy that rarely compromises bladder function. Conservative management including clean intermittent catheterization and pharmacotherapy is the primary approach for hypocompliant contracted bladder. Surgical treatment may be used in refractory cases to improve bladder compliance and capacity in order to protect the upper urinary tract. We describe a case of pure laparoscopic augmentation ileocystoplasty in a patient affected by Guillain-Barre syndrome. Presentation A 15-year-old female, complaining of voiding dysfunction, recurrent urinary tract infection and worsening renal function for three months. A previous history of Guillain-Barre syndrome on childhood was related. A voiding cystourethrography showed a pine-cone bladder with moderate post-void residual urine. The urodynamic demonstrated a hypocompliant bladder and small bladder capacity (190mL with high detrusor pressure (54 cmH2O. Nonsurgical treatments were attempted, however unsuccessfully. The patient was placed in the exaggerated Trendelenburg position. A four-port transperitoneal technique was used. A segment of ileum approximately 15-20cm was selected and divided with its pedicle. The ileal anastomosis and creation of ileal U-shaped plate were performed laparoscopically, without staplers. Bladder mobilization and longidutinal cystotomy were performed. Enterovesical anastomosis was done with continuous running suture. A suprapubic cystostomy was placed through a 5mm trocar. Results The total operative time was 335 min. The blood loss was minimal. The patient developed ileus in the early days, diet acceptance after the fourth day and was discharged on the seventh postoperative day. The urethral catheter was removed after 2 weeks. At 6-month follow-up, a cystogram showed a significant improvement in bladder capacity. The patient adhered well to clean intermittent self-catheterization and there was no report for febrile infections

  9. Gendered Disparities in Quality of Cataract Surgery in a Marginalised Population in Pakistan: The Karachi Marine Fishing Communities Eye and General Health Survey.

    Directory of Open Access Journals (Sweden)

    Khabir Ahmad

    Full Text Available Marine fishing communities are among the most marginalised and hard-to-reach groups and have been largely neglected in health research. We examined the quality of cataract surgery and its determinants, with an emphasis on gender, in marine fishing communities in Karachi, Pakistan, using multiple indicators of performance.The Karachi Marine Fishing Communities Eye and General Health Survey was a door-to-door, cross-sectional study conducted between March 2009 and April 2010 in fishing communities living on 7 islands and in coastal areas in Keamari, Karachi, located on the Arabian Sea. A population-based sample of 638 adults, aged ≥ 50 years, was studied. A total of 145 eyes (of 97 persons had undergone cataract surgery in this sample. Cataract surgical outcomes assessed included vision (presenting and best-corrected with a reduced logMAR chart, satisfaction with surgery, astigmatism, and pupil shape. Overall, 65.5% of the operated eyes had some form of visual loss (presenting visual acuity [PVA] < 6/12. 55.2%, 29.0%, and 15.9% of these had good, borderline, and poor visual outcomes based on presenting vision; with best correction, these values were: 68.3 %, 18.6%, and 13.1%, respectively. Of 7 covariates evaluated in the multivariable generalized estimating equations (GEE analyses, gender was the only significant independent predictor of visual outcome. Women's eyes were nearly 4.38 times more likely to have suboptimal visual outcome (PVA<6/18 compared with men's eyes (adjusted odds ratio 4.38, 95% CI 1.96-9.79; P<0.001 after adjusting for the effect of household financial status. A higher proportion of women's than men's eyes had an irregular pupil (26.5% vs. 14.8% or severe/very severe astigmatism (27.5% vs. 18.2%. However, these differences did not reach statistical significance. Overall, more than one fourth (44/144 of cataract surgeries resulted in dissatisfaction. The only significant predictor of satisfaction was visual outcome (P <0

  10. Restorative Virtual Environment Design for Augmenting Nursing Home Rehabilitation

    DEFF Research Database (Denmark)

    Bruun-Pedersen, Jon Ram; Serafin, Stefania; Kofoed, Lise

    2016-01-01

    to experience natural surroundings. Augmenting a conventional biking exercise with a recreational virtual environment (RVE) has shown to serve as an intrinsic motivation contributor to exercise for nursing home residents. RVEs might be able to provide some of the health benefits that regular nature experiences...

  11. Augmented Reality Tower Technology Assessment

    Science.gov (United States)

    Reisman, Ronald J.; Brown, David M.

    2009-01-01

    Augmented Reality technology may help improve Air Traffic Control Tower efficiency and safety during low-visibility conditions. This paper presents the assessments of five off-duty controllers who shadow-controlled' with an augmented reality prototype in their own facility. Initial studies indicated unanimous agreement that this technology is potentially beneficial, though the prototype used in the study was not adequate for operational use. Some controllers agreed that augmented reality technology improved situational awareness, had potential to benefit clearance, control, and coordination tasks and duties and could be very useful for acquiring aircraft and weather information, particularly aircraft location, heading, and identification. The strongest objections to the prototype used in this study were directed at aircraft registration errors, unacceptable optical transparency, insufficient display performance in sunlight, inadequate representation of the static environment and insufficient symbology.

  12. Consumers’ attitude towards fish meat

    Directory of Open Access Journals (Sweden)

    Francesca Conte

    2014-09-01

    Full Text Available The overall aim of this paper is to show the factors that may affect consumers’ attitude towards farmed fish products. Consumers ask new products on the basis of different quality attributes: stability, safety, composition, better health effects, environment protection, etc. Different and controversial opinions on farmed and wild fish are also explored by literature review. The authors pay attention also to fish welfare as an emerging issue and effective information about fish products as a factor exerting a positive influence on consumers’ decision of purchase. Some relevant legislative notes on the paper’s topics are also cited. The qualitative aspects of aquaculture fish and the consumers’ demand and choice need further studies, according to some factors, such as the changing consumers’ attitudes towards fish products, the different fish quality perception and the development in the aquaculture systems.

  13. AUGMENTATION-RELATED BRAIN PLASTICITY

    Directory of Open Access Journals (Sweden)

    Giovanni eDi Pino

    2014-06-01

    Full Text Available Today, the anthropomorphism of the tools and the development of neural interfaces require reconsidering the concept of human-tools interaction in the framework of human augmentation. This review analyzes the plastic process that the brain undergoes when it comes into contact with augmenting artificial sensors and effectors and, on the other hand, the changes that the use of external augmenting devices produces in the brain.Hitherto, few studies investigated the neural correlates of augmentation, but clues on it can be borrowed from logically-related paradigms: sensorimotor training, cognitive enhancement, cross-modal plasticity, sensorimotor functional substitution, use and embodiment of tools.Augmentation modifies function and structure of a number of areas, i.e. primary sensory cortices shape their receptive fields to become sensitive to novel inputs. Motor areas adapt the neuroprosthesis representation firing-rate to refine kinematics. As for normal motor outputs, the learning process recruits motor and premotor cortices and the acquisition of proficiency decreases attentional recruitment, focuses the activity on sensorimotor areas and increases the basal ganglia drive on the cortex. Augmentation deeply relies on the frontoparietal network. In particular, premotor cortex is involved in learning the control of an external effector and owns the tool motor representation, while the intraparietal sulcus extracts its visual features. In these areas, multisensory integration neurons enlarge their receptive fields to embody supernumerary limbs. For operating an anthropomorphic neuroprosthesis, the mirror system is required to understand the meaning of the action, the cerebellum for the formation of its internal model and the insula for its interoception. In conclusion, anthropomorphic sensorized devices can provide the critical sensory afferences to evolve the exploitation of tools through their embodiment, reshaping the body representation and the

  14. Augmentation-related brain plasticity

    Science.gov (United States)

    Di Pino, Giovanni; Maravita, Angelo; Zollo, Loredana; Guglielmelli, Eugenio; Di Lazzaro, Vincenzo

    2014-01-01

    Today, the anthropomorphism of the tools and the development of neural interfaces require reconsidering the concept of human-tools interaction in the framework of human augmentation. This review analyses the plastic process that the brain undergoes when it comes into contact with augmenting artificial sensors and effectors and, on the other hand, the changes that the use of external augmenting devices produces in the brain. Hitherto, few studies investigated the neural correlates of augmentation, but clues on it can be borrowed from logically-related paradigms: sensorimotor training, cognitive enhancement, cross-modal plasticity, sensorimotor functional substitution, use and embodiment of tools. Augmentation modifies function and structure of a number of areas, i.e., primary sensory cortices shape their receptive fields to become sensitive to novel inputs. Motor areas adapt the neuroprosthesis representation firing-rate to refine kinematics. As for normal motor outputs, the learning process recruits motor and premotor cortices and the acquisition of proficiency decreases attentional recruitment, focuses the activity on sensorimotor areas and increases the basal ganglia drive on the cortex. Augmentation deeply relies on the frontoparietal network. In particular, premotor cortex is involved in learning the control of an external effector and owns the tool motor representation, while the intraparietal sulcus extracts its visual features. In these areas, multisensory integration neurons enlarge their receptive fields to embody supernumerary limbs. For operating an anthropomorphic neuroprosthesis, the mirror system is required to understand the meaning of the action, the cerebellum for the formation of its internal model and the insula for its interoception. In conclusion, anthropomorphic sensorized devices can provide the critical sensory afferences to evolve the exploitation of tools through their embodiment, reshaping the body representation and the sense of the self

  15. Biomonitoring of Environmental Status and Trends (BEST) Program: Environmental Contaminants, Health Indicators, and Reproductive Biomarkers in Fish from the Mobile, Apalachicola-Chattahoochee-Flint, Savannah, and Pee Dee River Basins

    Science.gov (United States)

    Hinck, Jo Ellen; Blazer, Vicki; Denslow, Nancy D.; Echols, Kathy R.; Gale, Robert W.; May, Tom W.; Claunch, Rachael; Wieser, Carla; Anderson, Patrick J.; Coyle, James J.; Gross, Timothy S.; Tillitt, Donald E.

    2007-01-01

    Largemouth bass (Micropterus salmoides) and common carp (Cyprinus carpio) were collected from 13 sites in 4 river basins in the southeastern United States to document spatial trends in accumulative contaminants, health indicators, and reproductive biomarkers. Organochlorine residues, 2,3,7,8- tetrachlorodibenzo-p-dioxin-like activity (TCDD-EQ), and elemental contaminants were measured in composite samples of whole fish, grouped by species and gender, from each site. Fish were field-examined for external and internal anomalies, selected organs were weighed to compute somatic indices, and tissue and fluid samples were preserved for fish health and reproductive biomarker analyses. Mercury concentrations in bass samples from all sites exceeded toxicity thresholds for mammals [>0.1 micrograms per gram wet weight (ug/g ww)], fish (>0.2 ug/g ww), and birds (>0.3 ug/g ww) and were greatest (>0.5 ug/g ww) in samples from the Alabama River at Eureka Landing, Alabama; the Mobile River at Bucks, Alabama; the Apalachicola River at Blountstown, Florida; the Savannah River at Sylvania, Georgia; and the Pee Dee River at Bucksport, South Carolina. Selenium concentrations were relatively high (>0.75 ug/g ww) in fish from the Tombigbee River at Lavaca, Alabama; the Mobile River at Bucks; and the Chattahoochee River at Omaha, Georgia compared to those from other sites. Concentrations of 2,2-bis (p-chlorophenyl)- 1,1-dichloroethylene (p,p'-DDE) were high in fish from the Chattahoochee River at Omaha and the Mobile River near Bucks, which was near a 2,2-bis (p-chlorophenyl)-1,1- dichloroethylene (DDT) formulating facility that historically discharged into the lower Mobile River. Toxaphene concentrations in fish from the Flint River near Albany, Georgia (60-100 nanograms per gram (ng/g) ww) may pose a risk to fish. Concentrations of other formerly used (total chlordanes, dieldrin, endrin, aldrin, mirex, and hexachlorobenzene) and currently used (pentachlorobenzene, pentachloroanisole

  16. Zero-Content Augmented Caches

    OpenAIRE

    Dusser, Julien; Piquet, Thomas; Seznec, André

    2008-01-01

    It has been observed that some applications manipulate large amounts of null data. Moreover these zero data often exhibit high spatial locality. On some applications more than 20\\% of the data accesses concern null data blocks. Representing a null block in a cache on a standard cache line appears as a waste of resources. In this paper, we propose the Zero-Content Augmented cache, the ZCA cache. A ZCA cache consists of a conventional cache augmented with a specialized cache for memorizing null...

  17. Ecological risk assessment of heavy metals in sediment and human health risk assessment of heavy metals in fishes in the middle and lower reaches of the Yangtze River basin

    International Nuclear Information System (INIS)

    The concentrations of heavy metals (Cr, Cd, Hg, Cu, Zn, Pb and As) in the water, sediment, and fish were investigated in the middle and lower reaches of the Yangtze River, China. Potential ecological risk analysis of sediment heavy metal concentrations indicated that six sites in the middle reach, half of the sites in the lower reach, and two sites in lakes, posed moderate or considerable ecological risk. Health risk analysis of individual heavy metals in fish tissue indicated safe levels for the general population and for fisherman but, in combination, there was a possible risk in terms of total target hazard quotients. Correlation analysis and PCA found that heavy metals (Hg, Cd, Pb, Cr, Cu, and Zn) may be mainly derived from metal processing, electroplating industries, industrial wastewater, and domestic sewage. Hg may also originate from coal combustion. Significant positive correlations between TN and As were observed. - Highlights: → Field survey, test and relationship of the concentrations of heavy metals in the water, sediment, and fish. → Potential ecological risk assessment of heavy metals in sediment. → Non-cancer health risk assessment of heavy metals in fish tissue. → Possible pollution source of heavy metals analyzed. - Possible ecological risk of sediment and slight non-cancer health risk of eating fish were found in the middle and lower reaches of the Yangtze River.

  18. Fish oil and neurovascular reactivity to mental stress in humans

    OpenAIRE

    Carter, Jason R.; Schwartz, Christopher E.; Yang, Huan; Joyner, Michael J.

    2013-01-01

    Omega-3 fatty acids found in fish oil have been suggested to protect against cardiovascular disease, yet underlying mechanisms remain unclear. Despite the well-documented link between mental stress and cardiovascular risk, no study has examined neural cardiovascular reactivity to mental stress after fish oil supplementation. We hypothesized that fish oil would blunt the blood pressure, heart rate (HR), and muscle sympathetic nerve activity (MSNA) responsiveness to mental stress and/or augment...

  19. gamma-linolenic acid does not augment long-chain polyunsaturated fatty acid omega-3 status

    NARCIS (Netherlands)

    Brouwer, DAJ; Hettema, Y; van Doormaal, JJ; Muskiet, FAJ

    1998-01-01

    Augmentation of long chain polyunsaturated omega 3 fatty acid (LCPUFA omega 3) status can be reached by consumption of fish oil or by improvement of the conversion of a-linolenic acid (ALA) to LCPUFA omega 3. Since gamma-linolenic acid (GLA) might activate the rate-limiting Delta-6 desaturation, we

  20. Augmented Reality in Science Education

    DEFF Research Database (Denmark)

    Nielsen, Birgitte Lund; Brandt, Harald; Swensen, Hakon

    2015-01-01

    Augmented reality (AR) holds great promise as a learning tool. However, most extant studies in this field have focused on the technology itself. The poster presents findings from the first stage of the AR-sci project addressing the issue of applying AR for educational purposes. Benefits and...

  1. Why do fish school?

    Institute of Scientific and Technical Information of China (English)

    Matz LARSSON

    2012-01-01

    Synchronized movements (schooling) emit complex and overlapping sound and pressure curves that might confuse the inner ear and lateral line organ (LLO) of a predator.Moreover,prey-fish moving close to each other may blur the electro-sensory perception of predators.The aim of this review is to explore mechanisms associated with synchronous swimming that may have contributed to increased adaptation and as a consequence may have influenced the evolution of schooling.The evolutionary development of the inner ear and the LLO increased the capacity to detect potential prey,possibly leading to an increased potential for cannibalism in the shoal,but also helped small fish to avoid joining larger fish,resulting in size homogeneity and,accordingly,an increased capacity for moving in synchrony.Water-movements and incidental sound produced as by-product of locomotion (ISOL) may provide fish with potentially useful information during swimming,such as neighbour body-size,speed,and location.When many fish move close to one another ISOL will be energetic and complex.Quiet intervals will be few.Fish moving in synchrony will have the capacity to discontinue movements simultaneously,providing relatively quiet intervals to allow the reception of potentially critical environmental signals.Besides,synchronized movements may facilitate auditory grouping of ISOL.Turning preference bias,well-functioning sense organs,good health,and skillful motor performance might be important to achieving an appropriate distance to school neighbors und aid the individual fish in reducing time spent in the comparatively less safe school periphery.Turning preferences in ancestral fish shoals might have helped fish to maintain groups and stay in formarion,reinforcing aforementioned predator confusion mechanisms,which possibly played a role in the lateralization of the vertebrate brain [Current Zoology 58 (1):116-128,2012].

  2. Why do fish school?

    Directory of Open Access Journals (Sweden)

    Matz LARSSON

    2012-02-01

    Full Text Available Synchronized movements (schooling emit complex and overlapping sound and pressure curves that might confuse the inner ear and lateral line organ (LLO of a predator. Moreover, prey-fish moving close to each other may blur the electro-sensory perception of predators. The aim of this review is to explore mechanisms associated with synchronous swimming that may have contributed to increased adaptation and as a consequence may have influenced the evolution of schooling. The evolutionary development of the inner ear and the LLO increased the capacity to detect potential prey, possibly leading to an increased potential for cannibalism in the shoal, but also helped small fish to avoid joining larger fish, resulting in size homogeneity and, accordingly, an increased capacity for moving in synchrony. Water-movements and incidental sound produced as by-product of locomotion (ISOL may provide fish with potentially useful information during swimming, such as neighbour body-size, speed, and location. When many fish move close to one another ISOL will be energetic and complex. Quiet intervals will be few. Fish moving in synchrony will have the capacity to discontinue movements simultaneously, providing relatively quiet intervals to allow the reception of potentially critical environmental signals. Besides, synchronized movements may facilitate auditory grouping of ISOL. Turning preference bias, well-functioning sense organs, good health, and skillful motor performance might be important to achieving an appropriate distance to school neighbors and aid the individual fish in reducing time spent in the comparatively less safe school periphery. Turning preferences in ancestral fish shoals might have helped fish to maintain groups and stay in formation, reinforcing aforementioned predator confusion mechanisms, which possibly played a role in the lateralization of the vertebrate brain [Current Zoology 58 (1: 116–128, 2012].

  3. Augmented reality and its practical application

    OpenAIRE

    ZÍTKOVÁ, Helena

    2011-01-01

    This thesis combines topic of augmented reality with tourism. For analyzing the state of the use of augmented reality was composed case studies. It was created product, which is called Guide to mobile phone.

  4. Health risks of polycyclic aromatic hydrocarbons via fish consumption in Haimen bay (China), downstream of an e-waste recycling site (Guiyu).

    Science.gov (United States)

    Shi, Jingchun; Zheng, Gene Jin-Shu; Wong, Ming-Hung; Liang, Hong; Li, Yuelin; Wu, Yinglin; Li, Ping; Liu, Wenhua

    2016-05-01

    Guiyu, China has been one of the largest e-waste recycling sites of the world for more than 20 years. Abundant data show that local dwellers there suffered from severe health risks from e-waste contaminants. In this study, polycyclic aromatic hydrocarbons (PAHs) were used as candidates to test the contamination levels and their possible adverse effects on residents in Haimen Bay, the estuary of Lian River (less than 30km from Guiyu), which has been totally neglected. The concentrations of 16PAHs were determined in collected marine fish with a median ΣPAH concentration of 1478ng/g (wet weight), and the contamination may be mainly influenced by Lian River runoff, specifically from Guiyu. The lifetime excess cancer risk for local dwellers was much higher than the serious risk level (10(-4)). More seriously, outflows of PAHs from the e-waste recycling site (Guiyu) seemed to exert health risks of a much larger scale of population downstream. PMID:26897061

  5. Augmented Reality for Multi-disciplinary Collaboration

    OpenAIRE

    Wang, Xiangyu; Rui

    2010-01-01

    This chapter presents a framework for multi-disciplinary collaboration. Tangible Augmented Reality has been raised as one of suitable systems for design collaboration. Furthermore, it emphasizes the advantages of Tangible Augmented Reality to illustrate the needs for integrating the Tangible User Interfaces and Augmented Reality Systems.

  6. Texture Fish

    Science.gov (United States)

    Stone, Julie

    2007-01-01

    In an effort to provide an opportunity for her first graders to explore texture through an engaging subject, the author developed a three-part lesson that features fish in a mixed-media artwork: (1) Exploring Textured Paint; (2) Creating the Fish; and (3) Role Playing. In this lesson, students effectively explore texture through painting, drawing,…

  7. Fish parasites

    DEFF Research Database (Denmark)

    This book contains 22 chapters on some of the most important parasitic diseases in wild and farmed fish. International experts give updated reviews and provide solutions to the problems......This book contains 22 chapters on some of the most important parasitic diseases in wild and farmed fish. International experts give updated reviews and provide solutions to the problems...

  8. Effective Augmentation of Complex Networks

    Science.gov (United States)

    Wang, Jinjian; Yu, Xinghuo; Stone, Lewi

    2016-05-01

    Networks science plays an enormous role in many aspects of modern society from distributing electrical power across nations to spreading information and social networking amongst global populations. While modern networks constantly change in size, few studies have sought methods for the difficult task of optimising this growth. Here we study theoretical requirements for augmenting networks by adding source or sink nodes, without requiring additional driver-nodes to accommodate the change i.e., conserving structural controllability. Our “effective augmentation” algorithm takes advantage of clusters intrinsic to the network topology, and permits rapidly and efficient augmentation of a large number of nodes in one time-step. “Effective augmentation” is shown to work successfully on a wide range of model and real networks. The method has numerous applications (e.g. study of biological, social, power and technological networks) and potentially of significant practical and economic value.

  9. Augmented Reality in Science Education

    DEFF Research Database (Denmark)

    Nielsen, Birgitte Lund; Brandt, Harald; Swenson, Hakon

    2015-01-01

    Augmented reality (AR) holds great promise as a learning tool. However, most extant studies in this field have focused on the technology itself. The poster presents findings from the first stage of the AR-sci project addressing the issue of applying AR for educational purposes. Benefits and chall......Augmented reality (AR) holds great promise as a learning tool. However, most extant studies in this field have focused on the technology itself. The poster presents findings from the first stage of the AR-sci project addressing the issue of applying AR for educational purposes. Benefits...... and challenges related to AR enhancing student learning in science in lower secondary school were identified by expert science teachers, ICT designers and science education researchers from four countries in a Delphi survey. Findings were condensed in a framework to categorize educational AR designs....

  10. Psychotherapy Augmentation through Preconscious Priming

    OpenAIRE

    Borgeat, François; O’Connor, Kieron; Amado, Danielle; St-Pierre-Delorme, Marie-Ève

    2013-01-01

    Objective: To test the hypothesis that repeated preconscious (masked) priming of personalized positive cognitions could augment cognitive change and facilitate achievement of patients’ goals following a therapy. Methods: Twenty social phobic patients (13 women) completed a 36-weeks study beginning by 12 weeks of group behavioral therapy. After the therapy, they received 6 weeks of preconscious priming and 6 weeks of a control procedure in a randomized cross-over design. The Priming conditi...

  11. Psychotherapy augmentation through preconscious priming

    OpenAIRE

    Francois eBorgeat; Kieron eO'Connor; Danielle eAmado; Marie-Eve eSt-Pierre-Delorme

    2013-01-01

    Objective: To test the hypothesis that repeated preconscious (masked) priming of personalized positive cognitions could augment cognitive change and facilitate achievement of patients’ goals following a therapy.Methods: Twenty social phobic patients (13 women) completed a 36 weeks study beginning by 12 weeks of group behavioural therapy. After the therapy, they received 6 weeks of preconscious priming and 6 weeks of a control procedure in a randomized cross-over design. The Priming condition ...

  12. Digital Augmented Reality Audio Headset

    OpenAIRE

    Jussi Rämö; Vesa Välimäki

    2012-01-01

    Augmented reality audio (ARA) combines virtual sound sources with the real sonic environment of the user. An ARA system can be realized with a headset containing binaural microphones. Ideally, the ARA headset should be acoustically transparent, that is, it should not cause audible modification to the surrounding sound. A practical implementation of an ARA mixer requires a low-latency headphone reproduction system with additional equalization to compensate for the attenuation and the modified ...

  13. Augmented Reality based Factory Planning

    OpenAIRE

    Pentenrieder, Katharina

    2009-01-01

    Today’s factory planning relies on the methods and tools of the Digital Factory to meet shortened product life cycles and the resulting demand for fast and flexible reengineering. However, the Digital Factory and the real production plants are often not consistent, due to incomplete or missing digital data. Augmented Reality can serve as an intuitive interface here. The technology combines real and virtual information by integrating virtual planning data seamlessly with views of the real fact...

  14. Sensor Fusion for Augmented Reality

    OpenAIRE

    Gustafsson, Fredrik; Schön, Thomas; Hol, Jeroen

    2009-01-01

    The problem of estimating the position and orientation (pose) of a camera is approached by fusing measurements from inertial sensors (accelerometers and rate gyroscopes) and a camera. The sensor fusion approach described in this contribution is based on nonlinear filtering using the measurements from these complementary sensors. This way, accurate and robust pose estimates are available for the primary purpose of augmented reality applications, but with the secondary effect of reducing comput...

  15. Sensor Fusion for Augmented Reality

    OpenAIRE

    Hol, Jeroen; Schön, Thomas; Gustafsson, Fredrik; Slycke, Per

    2007-01-01

    In Augmented Reality (AR), the position and orientation of the camera have to be estimated with high accuracy and low latency. This nonlinear estimation problem is studied in the present paper. The proposed solution makes use of measurements from inertial sensors and computer vision. These measurements are fused using a Kalman filtering framework, incorporating a rather detailed model for the dynamics of the camera. Experiments show that the resulting filter provides good estimates of the cam...

  16. MRI analysis after augmentation mammoplasty

    International Nuclear Information System (INIS)

    Objective: To analyze MRI appearance after augmentation mammoplasty, and to assess the clinical value. Methods: Sixty-three cases with augmentation mammoplasty were imaged by MR scanner. MR imaging features of silicone implant and injected implant were analyzed respectively. Results 80 breasts in 40 patients were with polyacrylamide hydrogel injection. In 50 breasts, the implants were shown as irregular gel in mammary gland, pectoralis muscle, and subcutaneous tissue. Auto-fat injection in both side of breast was performed in 7 cases. Among them, fibrofatty mass was detected in 12 breasts, fat- fluid interface was seen in 6 breasts, and fat in pectoralis major was revealed in 6 breasts. Silicone implant in both side of breast was performed in 16 cases. 2 breasts in 2 ease were detected as saline-filled implants with intracapsular rupture. 14 eases were with silicone gel-filled implants, among them, 4 breasts were found to have extracapsular rupture and 10 breasts intracapsular rupture. Conclusion: MRI is a perfect method in accessing the patients with augmentation mammoplasty. (authors)

  17. Aesthetic occiput augmentation using methylmethacrylate.

    Science.gov (United States)

    Song, Yong Tai

    2015-01-01

    Cranioplasty for only aesthetic reasons has not been commonly performed to date. However, recently there has been a new focus by the public on a more aesthetically pleasing head shape with frequent patient requests for purely aesthetic contouring of the occiput, an important definer of cosmetic head shape. For example, in Asia, where the normal cranial shape is mesocephalic or brachycephalic and often with a planar occiput, requests for its aesthetic correction are increasingly common. Accordingly, the author developed a minimally invasive occiput augmentation using methylmethacrylate. In this study, the indications for aesthetic occiput contouring were planar occiput, left-right asymmetric occiput, and grooved occiput. Under local anesthesia, soft methylmethacrylate is subperiosteally inserted through a small incision (about 5-cm length), manually and precisely contoured in situ through the scalp to the desired occipital shape. All is performed as an outpatient procedure, and a quick recovery is the case. Between March 2007 and October 2013, 959 patients received such aesthetic occiput augmentation. The mean follow-up period was 49 months (range, 3-84 months). Nearly all patients were satisfied with the outcome, and complications were very rare. Only 5 patients (0.5%) needed additional corrective procedures. The author has concluded that aesthetic occiput augmentation using methylmethacrylate yields consistent, predictable, and satisfactory results. Additional long-term follow-up is required for a final conclusion, however. PMID:25569386

  18. Tracking for Outdoor Mobile Augmented Reality: Further development of the Zion Augmented Reality Application

    OpenAIRE

    Strand, Tor Egil Riegels

    2008-01-01

    This report deals with providing tracking to an outdoor mobile augmented reality system and the Zion Augmented Reality Application. ZionARA is meant to display a virtual recreation of a 13th century castle on the site it once stood through an augmented reality Head Mounted Display. Mobile outdoor augmented/mixed reality puts special demands on what kind of equipment is practical. After briefly evaluating the different existing tracking methods, a solution based on GPS and an augmented inertia...

  19. Tracking for Outdoor Mobile Augmented Reality : Further development of the Zion Augmented Reality Application

    OpenAIRE

    Strand, Tor Egil Riegels

    2008-01-01

    This report deals with providing tracking to an outdoor mobile augmented reality system and the Zion Augmented Reality Application. ZionARA is meant to display a virtual recreation of a 13th century castle on the site it once stood through an augmented reality Head Mounted Display. Mobile outdoor augmented/mixed reality puts special demands on what kind of equipment is practical. After briefly evaluating the different existing tracking methods, a solution based on GPS and an augmented inertia...

  20. Transcriptomic analysis of the effects of a fish oil enriched diet on murine brains.

    Directory of Open Access Journals (Sweden)

    Rasha Hammamieh

    Full Text Available The health benefits of fish oil enriched with high omega-3 polyunsaturated fatty acids (n-3 PUFA are widely documented. Fish oil as dietary supplements, however, show moderate clinical efficacy, highlighting an immediate scope of systematic in vitro feedback. Our transcriptomic study was designed to investigate the genomic shift of murine brains fed on fish oil enriched diets. A customized fish oil enriched diet (FD and standard lab diet (SD were separately administered to two randomly chosen populations of C57BL/6J mice from their weaning age until late adolescence. Statistical analysis mined 1,142 genes of interest (GOI differentially altered in the hemibrains collected from the FD- and SD-fed mice at the age of five months. The majority of identified GOI (∼ 40% encodes proteins located in the plasma membrane, suggesting that fish oil primarily facilitated the membrane-oriented biofunctions. FD potentially augmented the nervous system's development and functions by selectively stimulating the Src-mediated calcium-induced growth cascade and the downstream PI3K-AKT-PKC pathways. FD reduced the amyloidal burden, attenuated oxidative stress, and assisted in somatostatin activation-the signatures of attenuation of Alzheimer's disease, Parkinson's disease, and affective disorder. FD induced elevation of FKBP5 and suppression of BDNF, which are often linked with the improvement of anxiety disorder, depression, and post-traumatic stress disorder. Hence we anticipate efficacy of FD in treating illnesses such as depression that are typically triggered by the hypoactivities of dopaminergic, adrenergic, cholinergic, and GABAergic networks. Contrastingly, FD's efficacy could be compromised in treating illnesses such as bipolar disorder and schizophrenia, which are triggered by hyperactivities of the same set of neuromodulators. A more comprehensive investigation is recommended to elucidate the implications of fish oil on disease pathomechanisms, and the

  1. One Fish, Two Fish, Redfish, You Fish!

    Science.gov (United States)

    White, Katherine; Timmons, Maryellen; Medders, Paul

    2011-01-01

    The recreational fishing activity presented in this article provides a hands-on, problem-based experience for students; it unites biology, math, economics, environmental policy, and population dynamics concepts. In addition, the activity allows students to shape environmental policy in a realistic setting and evaluate their peers' work. By…

  2. Designer Fish.

    Science.gov (United States)

    Hall, William R., Jr.

    1990-01-01

    Described is an activity in which students are asked to design a fish that would survive in a natural system. A project to computerize the activity is discussed. The development of this artificial intelligence software is detailed. (CW)

  3. SMART SHOPPING: BUILDING A TOOL BASED ON AUGMENTED REALITY

    Directory of Open Access Journals (Sweden)

    W.A.L Madhushanka

    2015-10-01

    Full Text Available In today’s world, most of the people do not consider health and the fruit they eat and some people do not know even the name of the fruit they eat and most of the people are addicted to quick shopping. Since people do not consider about their health, it is important to provide a solution. Augmented Reality (AR plays major role in current technology. AR is mapping real world environment with computer based virtual environment. This research is a Mobile Application, based on AR. Once user selects a picture of a fruit, the image would be processed and display details lively. The application was developed based on client server Architecture. Main objective of this research is provided accurate details for user lively. This study is helpful for the researches who are interested in Augmented Reality concept and image processing to design and develop similar models or to develop same model further.

  4. Smart Shopping: Building a Tool Based on Augmented Reality

    Directory of Open Access Journals (Sweden)

    W.A.L.Madushanka

    2014-10-01

    Full Text Available In today’s world, most of the people do not consider health and the fruit they eat and some people do not know even the name of the fruit they eat and most of the people are addicted to quick shopping. Since people do not consider about their health, it is important to provide a solution. Augmented Reality (AR plays major role in current technology. AR is mapping real world environment with computer based virtual environment. This research is a Mobile Application, based on AR. Once user selects a picture of a fruit, the image would be processed and display details lively. The application was developed based on client server Architecture. Main objective of this research is provided accurate details for user lively. This study is helpful for the researches who are interested in Augmented Reality concept and image processing to design and develop similar models or to develop same model further.

  5. Webizing mobile augmented reality content

    Science.gov (United States)

    Ahn, Sangchul; Ko, Heedong; Yoo, Byounghyun

    2014-01-01

    This paper presents a content structure for building mobile augmented reality (AR) applications in HTML5 to achieve a clean separation of the mobile AR content and the application logic for scaling as on the Web. We propose that the content structure contains the physical world as well as virtual assets for mobile AR applications as document object model (DOM) elements and that their behaviour and user interactions are controlled through DOM events by representing objects and places with a uniform resource identifier. Our content structure enables mobile AR applications to be seamlessly developed as normal HTML documents under the current Web eco-system.

  6. Digital Illumination for Augmented Studios

    Directory of Open Access Journals (Sweden)

    Stefanie Zollmann

    2006-12-01

    Full Text Available Virtual studio technology plays an important role for modern television productions. Blue-screen matting is a common technique for integrating real actors or moderators into computer generated sceneries. Augmented reality offers the possibility to mix real and virtual in a more general context. This article proposes a new technological approach for combining real studio content with computer-generated information. Digital light projection allows a controlled spatial, temporal, chrominance and luminance modulation of illumination opening new possibilities for TV studios.

  7. Alabama ESI: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for marine, estuarine, and freshwater fish species in Alabama. Vector polygons in this data set represent...

  8. Maryland ESI: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for marine, estuarine, anadromous, and freshwater fish species in Maryland. Vector polygons in this data...

  9. Hawaii ESI: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for reef, marine, estuarine, and native stream fish species in coastal Hawaii. Vector polygons in this...

  10. Virginia ESI: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for marine, estuarine, anadromous, and brackishwater fish species in Virginia. Vector polygons in this...

  11. Louisiana ESI: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for freshwater (inland) fish species in coastal Louisiana. Vector polygons represent water-bodies and...

  12. Fishing amplifies forage fish population collapses

    OpenAIRE

    Essington, Timothy E.; Moriarty, Pamela E.; Froehlich, Halley E.; Hodgson, Emma E.; Koehn, Laura E.; Oken, Kiva L.; Siple, Margaret C.; Stawitz, Christine C.

    2015-01-01

    Forage fish provide substantial benefits to both humans and ocean food webs, but these benefits may be in conflict unless there are effective policies governing human activities, such as fishing. Collapses of forage fish induce widespread ecological effects on dependent predators, but attributing collapses to fishing has been difficult because of natural fluctuations of these stocks. We implicate fishing in forage fish stock collapses by showing that high fishing rates are maintained when sto...

  13. Psychotherapy augmentation through preconscious priming

    Directory of Open Access Journals (Sweden)

    Francois eBorgeat

    2013-03-01

    Full Text Available Objective: To test the hypothesis that repeated preconscious (masked priming of personalized positive cognitions could augment cognitive change and facilitate achievement of patients’ goals following a therapy.Methods: Twenty social phobic patients (13 women completed a 36 weeks study beginning by 12 weeks of group behavioural therapy. After the therapy, they received 6 weeks of preconscious priming and 6 weeks of a control procedure in a randomized cross-over design. The Priming condition involved listening twice daily with a passive attitude to a recording of individualized formulations of appropriate cognitions and attitudes masked by music. The Control condition involved listening to an indistinguishable recording where the formulations had been replaced by random numbers. Changes in social cognitions were measured by the Social Interaction Self Statements Test (SISST.Results: Patients improved following therapy. The Priming procedure was associated with increased positive cognitions and decreased negative cognitions on the SISST while the Control procedure was not. The Priming procedure induced more cognitive change when applied immediately after the group therapy. Conclusion: An effect of priming was observed on social phobia related cognitions in the expected direction. This self administered addition to a therapy could be seen as an augmentation strategy.

  14. Augmented reality in medical education?

    Science.gov (United States)

    Kamphuis, Carolien; Barsom, Esther; Schijven, Marlies; Christoph, Noor

    2014-09-01

    Learning in the medical domain is to a large extent workplace learning and involves mastery of complex skills that require performance up to professional standards in the work environment. Since training in this real-life context is not always possible for reasons of safety, costs, or didactics, alternative ways are needed to achieve clinical excellence. Educational technology and more specifically augmented reality (AR) has the potential to offer a highly realistic situated learning experience supportive of complex medical learning and transfer. AR is a technology that adds virtual content to the physical real world, thereby augmenting the perception of reality. Three examples of dedicated AR learning environments for the medical domain are described. Five types of research questions are identified that may guide empirical research into the effects of these learning environments. Up to now, empirical research mainly appears to focus on the development, usability and initial implementation of AR for learning. Limited review results reflect the motivational value of AR, its potential for training psychomotor skills and the capacity to visualize the invisible, possibly leading to enhanced conceptual understanding of complex causality. PMID:24464832

  15. Periareolar Extra-Glandular Breast Augmentation

    OpenAIRE

    Mohmand, Muhammad Humayun; Ahmad, Muhammad

    2013-01-01

    BACKGROUND Breast augmentation is the most frequent procedure performed according to the 2009 Quick Facts report of the American Society of Plastic Surgeons. This study presents the periareolar extra-glandular breast augmentation. METHODS From 2004 to 2010 among 32 female patients, peri-areolar incision was performed for breast augmentation. Dissection was performed in subcutaneous plane towards the inferior pole to reach the inframammary fold and was continued in the upwards direction in the...

  16. Preprint ARPPS Augmented Reality Pipeline Prospect System

    OpenAIRE

    Zhang, Xiaolei; Han, Yong; Hao, DongSheng; Lv, Zhihan

    2015-01-01

    This is the preprint version of our paper on ICONIP. Outdoor augmented reality geographic information system (ARGIS) is the hot application of augmented reality over recent years. This paper concludes the key solutions of ARGIS, designs the mobile augmented reality pipeline prospect system (ARPPS), and respectively realizes the machine vision based pipeline prospect system (MVBPPS) and the sensor based pipeline prospect system (SBPPS). With the MVBPPS's realization, this paper studies the neu...

  17. Augmented Reality Using JavaScript

    OpenAIRE

    Hailemichael, Aida

    2013-01-01

    The project goal was to provide a mobile application, for a venue called Kulturhuset Karelia which is located in Tammisaari Finland. In this paper, the concept of Augmented Reality technology is briefly discussed along with the mobile application for the venue. The utilisation of JavaScript for creating Augmented reality content for mobile Augmented reality browser is also demonstrated. The application was created by using Architecht API which is Jacvascript library based on the Wikitude...

  18. InAR:Inverse Augmented Reality

    OpenAIRE

    Hu, Hao; Cui, Hainan

    2015-01-01

    Augmented reality is the art to seamlessly fuse virtual objects into real ones. In this short note, we address the opposite problem, the inverse augmented reality, that is, given a perfectly augmented reality scene where human is unable to distinguish real objects from virtual ones, how the machine could help do the job. We show by structure from motion (SFM), a simple 3D reconstruction technique from images in computer vision, the real and virtual objects can be easily separated in the recon...

  19. Interactive Assembly Guide using Augmented Reality

    DEFF Research Database (Denmark)

    Andersen, Martin; Andersen, Rasmus Skovgaard; Larsen, Christian Lindequist;

    2009-01-01

    This paper presents an Augmented Reality system for aiding a pump assembling process at Grundfos, one of the leading pump producers. Stable pose estimation of the pump is required in order to augment the graphics correctly. This is achieved by matching image edges with synthesized edges from CAD...... norm. A dynamic visualization of the augmented graphics provides the user with guidance. Usability tests show that the accuracy of the system is sufficient for assembling the pump....

  20. AB027. Penile augmentation: informed text briefing

    OpenAIRE

    Park, Nam Cheol

    2016-01-01

    The men’s desire to have larger and longer penis have created endless medical demands throughout human history. Until up to date, various medical skills for penile augmentation have developed in aspect of experimental and clinical outcome. Recently with throwing away socially unacceptable ideas, the need for penile augmentation is considered as equivalent level with mammoplasty for breast augmentation in women for cosmetic and psychological reason. Concurrently advanced technologies in medica...

  1. RFIDice - Augmenting Tabletop Dice with RFID

    Directory of Open Access Journals (Sweden)

    Marc Langheinrich

    2008-08-01

    Full Text Available Augmented dice allow players of tabletop games to have the result of a roll be automatically recorded by a computer, e.g., for supporting strategy games. We have built a set of three augmented-dice-prototypes based on radio frequency identification (RFID technology, which allows us to build robust, cheap, and small augmented dice. Using a corresponding readout infrastructure and a sample application, we have evaluated our approach and show its advantages over other dice augmentation methods discussed in the literature.

  2. Augmenting Locomotion in an Anthropomorphic System

    Directory of Open Access Journals (Sweden)

    Derek Wight

    2005-02-01

    Full Text Available A powered orthosis has applications ranging from assisting the elderly to augmenting astronauts. An assistive control scheme is developed that uses the force from a slave actuator to augment the force of a master actuator. This can be used to augment a closed-loop control scheme applied to the master actuator. Initially, actuator augmentation is explored both theoretically and experimentally using a simple mechanical system. The control scheme is then applied to a scale model of human lower limbs on a stationary bicycle to investigate the feasibility of a powered orthosis using pneumatic muscle actuators.

  3. Strategies and Challenges in Simultaneous Augmentation Mastopexy.

    Science.gov (United States)

    Spring, Michelle A; Hartmann, Emily C; Stevens, W Grant

    2015-10-01

    Simultaneous breast augmentation and mastopexy is a common procedure often considered to be one of the most difficult cosmetic breast surgeries. One-stage augmentation mastopexy was initially described more than 50 years ago. The challenge lies in the fact that the surgery has multiple opposing goals: to increasing the volume of a breast, enhance the shape, and simultaneously decrease the skin envelope. Successful outcomes in augmentation can be expected with proper planning, technique, and patient education. This article focuses on common indications for simultaneous augmentation mastopexy, techniques for safe and effective combined procedures, challenges of the procedure, and potential complications. PMID:26408440

  4. Consumer evaluation of fish quality as basis for fish market segmentation

    DEFF Research Database (Denmark)

    Verbeke, Wim; Vermeir, Iris; Brunsø, Karen

    2007-01-01

    This paper focuses on consumer evaluation of fish quality and its association with fish consumption, risk and benefit beliefs and information processing variables. Cross-sectional data were collected from a sample of 429 consumers in March 2003 in Belgium. Two dimensions shape fish quality...... evaluation: personal relevance attached to fish quality and self-confidence in fish quality evaluation, which allow segmenting the market in four fish consumer segments. The segments are typified as Uninvolved, Uncertain, Self-confident and Connoisseurs, and have distinctive behavioural, attitudinal...... and socio-demographic profiles. The Uninvolved are mainly young males, have the lowest fish consumption level, weakest belief in health benefits from eating fish, and lowest interest in both search and credence information cues. Uncertain fish consumers are mainly females, with a tendency of lower education...

  5. The Development of Mushroom and Tuckahoe Health Fish-ball%香菇茯苓保健鱼丸的研制

    Institute of Scientific and Technical Information of China (English)

    路红波

    2012-01-01

    以低值淡水鱼为主要原料加工传统鱼丸,并将具有营养保健价值的香菇和茯苓添加到鱼丸中,进而开发香菇茯苓保健鱼丸。通过单因素和正交试验确定了香菇茯苓保健鱼丸的最佳配方为:玉米淀粉10%,香菇浆12%,茯苓粉6%,鸡蛋清11%。此产品具有鱼肉鲜味,同时具有香菇特有风味、营养丰富,具有保健功效,特别适合于中老年和儿童人群食用。%Fish-ball was made of low-cost freshwater fish.Explore that adding the mushroom and tuckahoe of nutritious and healthy function into fish-ball to develop mushroom nutritious fish-ball.Single factor and orthogonal design were adopted to research the suitable formula of mushroom nutritious fish-ball.The result showed that the optimized formula was cornstarch10%,mushroom serum 12%,tuckahoe 6%,egg white 11%.The result also showed that mushroom nutritious fish-ball had fish and mushroom fragrance and taste,nutrient-rich,healthcare function,and this kind of product is suitable for the middle-aged and children.

  6. Augmented reality for improved safety

    CERN Multimedia

    Stefania Pandolfi

    2016-01-01

    Sometimes, CERN experts have to operate in low visibility conditions or in the presence of possible hazards. Minimising the duration of the operation and reducing the risk of errors is therefore crucial to ensuring the safety of personnel. The EDUSAFE project integrates different technologies to create a wearable personnel safety system based on augmented reality.    The EDUSAFE integrated safety system uses a camera mounted on the helmet to monitor the working area.  In its everyday operation of machines and facilities, CERN adopts a whole set of measures and safety equipment to ensure the safety of its personnel, including personal wearable safety devices and access control systems. However, sometimes, scheduled and emergency maintenance work needs to be done in zones with potential cryogenic hazards, in the presence of radioactive equipment or simply in demanding conditions where visibility is low and moving around is difficult. The EDUSAFE Marie Curie Innovative&...

  7. Price Transmission and Market Integration of Fish in Oyo State

    OpenAIRE

    Adenegan, Kemisola O.; Bolarinwa, Anifat O.

    2010-01-01

    This study examined degree of market integration and price transmission between four categories (local fresh, local dried, imported iced and imported dried) of fish market in the rural and urban area of Oyo State. Secondary data were sourced on the monthly retail prices of fishes for sixty months from the Oyo State Agricultural Development Project (OYSADEP). Data were analysed using the Augmented Dickey Fuller (ADF) test, Granger-causality test and Index of Market Concentration. The result re...

  8. Sensory augmentation for the blind

    Directory of Open Access Journals (Sweden)

    Silke Manuela Kärcher

    2012-03-01

    Full Text Available Enacted theories of consciousness conjecture that perception and cognition arise from an active experience of the regular relations that are tying together the sensory stimulation of different modalities and associated motor actions. Previous experiments investigated this concept by employing the technique of sensory substitution. Building on these studies, here we test a set of hypotheses derived from this framework and investigate the utility of sensory augmentation in handicapped people. We provide a late blind subject with a new set of sensorimotor laws: A vibro-tactile belt continually signals the direction of magnetic north. The subject completed a set of behavioral tests before and after an extended training period. The tests were complemented by questionnaires and interviews. This newly supplied information improved performance on different time scales. In a pointing task we demonstrate an instant improvement of performance based on the signal provided by the device. Furthermore, the signal was helpful in relevant daily tasks, often complicated for the blind, such as keeping a direction over longer distances or taking shortcuts in familiar environments. A homing task with an additional attentional load demonstrated a significant improvement after training. The subject found the directional information highly expedient for the adjustment of his inner maps of familiar environments and describes an increase in his feeling of security when exploring unfamiliar environments with the belt. The results give evidence for a firm integration of the newly supplied signals into the behavior of this late blind subject with better navigational performance and more courageous behavior in unfamiliar environments. Most importantly, the complementary information provided by the belt lead to a positive emotional impact with enhanced feeling of security. This experimental approach demonstrates the potential of sensory augmentation devices for the help of

  9. Fish Facts

    Science.gov (United States)

    ... fish because they worry about mercury in seafood. Mercury is a metal that, at high levels, can harm the brain of your unborn baby even before he or she is conceived. Yet many types of seafood have little or no mercury at all. So your risk of mercury exposure ...

  10. Vertebral Augmentation for Osteoporotic Compression Fractures.

    Science.gov (United States)

    Richmond, Bradford J

    2016-01-01

    Vertebral augmentation procedures such as vertebroplasty and kyphoplasty were developed to reduce pain and improve quality of life for patients with osteoporotic vertebral compression fractures. However, the use of vertebral augmentation has been debated and questioned since its inception. This article addresses some of these issues. PMID:26490134

  11. Enhancing Education through Mobile Augmented Reality

    Science.gov (United States)

    Joan, D. R. Robert

    2015-01-01

    In this article, the author has discussed about the Mobile Augmented Reality and enhancing education through it. The aim of the present study was to give some general information about mobile augmented reality which helps to boost education. Purpose of the current study reveals the mobile networks which are used in the institution campus as well…

  12. From Augmentation Media to Meme Media.

    Science.gov (United States)

    Tanaka, Yuzuru

    Computers as meta media are now evolving from augmentation media vehicles to meme media vehicles. While an augmentation media system provides a seamlessly integrated environment of various tools and documents, meme media system provides further functions to edit and distribute tools and documents. Documents and tools on meme media can easily…

  13. The relationship between coral reef health, alien algae, and fish biomass at sites on Oahu and the Big Island, Hawaii, during 2004-2005 (NODC Accession 0002619)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data in this set come from two studies: "Ability of protected reefs to resist alien algae" and "How many fish does it take to keep the alien algae out?" Both are...

  14. Fatty Fish May Curb Eye Risks for Diabetics, Study Finds

    Science.gov (United States)

    ... https://medlineplus.gov/news/fullstory_160495.html Fatty Fish May Curb Eye Risks for Diabetics, Study Finds ... Aug. 18, 2016 (HealthDay News) -- Two servings of fish a week may be enough to lower the ...

  15. Augmented Reality Implementation Methods in Mainstream Applications

    CERN Document Server

    Prochazka, David

    2011-01-01

    Augmented reality has became an useful tool in many areas from space exploration to military applications. Although used theoretical principles are well known for almost a decade, the augmented reality is almost exclusively used in high budget solutions with a special hardware. However, in last few years we could see rising popularity of many projects focused on deployment of the augmented reality on different mobile devices. Our article is aimed on developers who consider development of an augmented reality application for the mainstream market. Such developers will be forced to keep the application price, therefore also the development price, at reasonable level. Usage of existing image processing software library could bring a significant cut-down of the development costs. In the theoretical part of the article is presented an overview of the augmented reality application structure. Further, an approach for selection appropriate library as well as the review of the existing software libraries focused in th...

  16. Irradiated homologous costal cartilage for augmentation rhinoplasty

    International Nuclear Information System (INIS)

    Although the ideal reconstructive material for augmentation rhinoplasty continues to challenge plastic surgeons, there exists no report in the literature that confines the use of irradiated homologous costal cartilage, first reported by Dingman and Grabb in 1961, to dorsal nasal augmentation. The purpose of this paper is to present a retrospective analysis of the author's experience using irradiated homologous costal cartilage in augmentation rhinoplasty. Twenty-seven dorsal nasal augmentations were performed in 24 patients between 16 and 49 years of age with a follow-up ranging from 1 to 27 months. Good-to-excellent results were achieved in 83.3% (20 of 24). Poor results requiring revision were found in 16.7% (4 of 24). Complication rates included 7.4% infection (2 of 27) and 14.8% warping (4 of 27). The resorption rate was zero. These results compare favorably with other forms of nasal augmentation. Advantages and disadvantages of irradiated homologous costal cartilage are discussed

  17. Diffuser Augmented Horizontal Axis Tidal Current Turbines

    Directory of Open Access Journals (Sweden)

    Nasir Mehmood

    2012-09-01

    Full Text Available The renewal energy technologies are increasingly popular to ensure future energy sustenance and address environmental issues. The tides are enormous and consistent untapped resource of renewable energy. The growing interest in exploring tidal energy has compelling reasons such as security and diversity of supply, intermittent but predictable and limited social and environmental impacts. The tidal energy industry is undergoing an increasing shift towards diffuser augmented turbines. The reason is the higher power output of diffuser augmented turbines compared to conventional open turbines. The purpose of this study is to present a comprehensive review of diffuser augmented horizontal axis tidal current turbines. The components, relative advantages, limitations and design parameters of diffuser augmented horizontal axis tidal current turbines are presented in detail. CFD simulation of NACA 0016 airfoil is carried out to explore its potential for designing a diffuser. The core issues associated with diffuser augmented horizontal axis tidal current turbines are also discussed.

  18. Accumulation of heavy metals and human health risk assessment via the consumption of freshwater fish Mastacembelus armatus inhabiting, thermal power plant effluent loaded canal.

    Science.gov (United States)

    Javed, Mehjbeen; Usmani, Nazura

    2016-01-01

    Bioaccumulation of six heavy metals (Mn, Fe, Co, Ni, Cu, Zn) in the muscle of highly consumed fish species (Mastacembelus armatus) were measured using atomic absorption spectrometer. Fe (213.29 mg/kg dry weight) concentration was the most, followed by Zn (186.19 mg/kg dry weight), Ni (58.98 mg/kg dry weight), Cu (41.36 mg/kg dry weight), Co (9.06 mg/kg dry weight) and Mn (9.03 mg/kg dry weight). Estimated daily intake of heavy metals was calculated by mean fish consumption rate 19.5 × 10(-3) kg/day, on the basis of a calculation of the amount of fish consumed by adult individuals (male and female). The studied fish species pose non carcinogenic risk for Co and Ni [target hazard quotient (THQ) > 1] only. Hazard index (HI) was high. Carcinogenic risk (TR) posed by this fish for male and female was 3.43 × 10(-3) and 3.91 × 10(-3), respectively for Ni (the carcinogenic potency slope factor was available for Ni only). The study is an alert indicating that inhabitants who consume these fishes (particularly females) were at risk of Co and Ni toxicity. In India recommended guidelines have yet not been established for these heavy metals, which is essential for setting of toxicological standards. PMID:27386262

  19. The Fishing Cat

    Institute of Scientific and Technical Information of China (English)

    孙雅飞; 乐伟国

    2008-01-01

    @@ 一、故事内容 A cat goes fishing every day. He wants to eat fish, but he can't catch any fish. One day, he goes to the river as usual. Suddenly, a fish comes out. He catches the fish and putsthe fish in the basket. He's very happy, but he forgest to put the lid on the basket.

  20. Microbiological spoilage of fish and fish products

    DEFF Research Database (Denmark)

    Gram, Lone; Huss, Hans Henrik

    1996-01-01

    Spoilage of fresh and lightly preserved fish products is caused by microbial action. This paper reviews the current knowledge in terms of the microbiology of fish and fish products with particular emphasis on identification of specific spoilage bacteria and the qualitative and quantitative...... biochemical indicators of spoilage. Shewanzella putrefaciens and Pseudomonas spp. are the specific spoilage bacteria of iced fresh fish regardless of the origin of the fish. Modified atmosphere stored marine fish from temperate waters are spoiled by the CO2 resistant Photobacterium phosphoreum whereas Gram......- positive bacteria are likely spoilers of CO2 packed fish from fresh or tropical waters. Fish products with high salt contents may spoil due to growth of halophilic bacteria (salted fish) or growth of anaerobic bacteria and yeasts (barrel salted fish). Whilst the spoilage of fresh and highly salted fish...

  1. Motives, barriers and quality evaluation in fish consumption situations

    DEFF Research Database (Denmark)

    Brunsø, Karen; Verbeke, Wim; Olsen, Svein Ottar;

    2009-01-01

    Purpose - The purpose of this paper is to investigate motives and barriers for eating fish among light users and heavy users, to discuss consumer evaluation of fish quality, and to explore the existence of cross-cultural fish consumer  segments. Design/methodology/approach - Qualitative data were...... though fish consumption levels differ considerably. The main motives for eating fish are health and taste, while the main barriers are price perception, smell when cooking fish, and that fish does not deliver the same level of satiety as compared to meat. Big differences are found between countries and...

  2. Nutrition, feeding, and behavior of fish.

    Science.gov (United States)

    Lall, Santosh P; Tibbetts, Sean M

    2009-05-01

    Nutrition and feeding influence growth, reproduction, and health of fish and their response to physiologic and environmental stressors and pathogens. The basics of fish metabolism are similar to those of warm-blooded animals in that they involve food intake, digestion, absorption, and transport of nutrients to the various tissues. Fish, however, being the most primitive form of vertebrates, possess some distinguishing features which will be discussed. Unlike warm-blooded animals, which are homoeothermic, fish are poikilothermic, so their body temperature and metabolic rate depends on the water temperature and this has practical implications for the nutrition, feeding and health of fish. Several behavioral responses have been linked to methods of feeding, feeding habits, frequency of feeding, mechanisms of food detection, and food preferences. Fish are also unique among vertebrates in their ability to absorb minerals not only from their diets but also from water through their gills and skin. PMID:19341962

  3. Fish hemoglobins

    Directory of Open Access Journals (Sweden)

    P.C. de Souza

    2007-06-01

    Full Text Available Vertebrate hemoglobin, contained in erythrocytes, is a globular protein with a quaternary structure composed of 4 globin chains (2 alpha and 2 beta and a prosthetic group named heme bound to each one. Having myoglobin as an ancestor, hemoglobin acquired the capacity to respond to chemical stimuli that modulate its function according to tissue requirements for oxygen. Fish are generally submitted to spatial and temporal O2 variations and have developed anatomical, physiological and biochemical strategies to adapt to the changing environmental gas availability. Structurally, most fish hemoglobins are tetrameric; however, those from some species such as lamprey and hagfish dissociate, being monomeric when oxygenated and oligomeric when deoxygenated. Fish blood frequently possesses several hemoglobins; the primary origin of this finding lies in the polymorphism that occurs in the globin loci, an aspect that may occasionally confer advantages to its carriers or even be a harmless evolutionary remnant. On the other hand, the functional properties exhibit different behaviors, ranging from a total absence of responses to allosteric regulation to drastic ones, such as the Root effect.

  4. Wireless Augmented Reality Prototype (WARP)

    Science.gov (United States)

    Devereaux, A. S.

    1999-01-01

    Initiated in January, 1997, under NASA's Office of Life and Microgravity Sciences and Applications, the Wireless Augmented Reality Prototype (WARP) is a means to leverage recent advances in communications, displays, imaging sensors, biosensors, voice recognition and microelectronics to develop a hands-free, tetherless system capable of real-time personal display and control of computer system resources. Using WARP, an astronaut may efficiently operate and monitor any computer-controllable activity inside or outside the vehicle or station. The WARP concept is a lightweight, unobtrusive heads-up display with a wireless wearable control unit. Connectivity to the external system is achieved through a high-rate radio link from the WARP personal unit to a base station unit installed into any system PC. The radio link has been specially engineered to operate within the high- interference, high-multipath environment of a space shuttle or space station module. Through this virtual terminal, the astronaut will be able to view and manipulate imagery, text or video, using voice commands to control the terminal operations. WARP's hands-free access to computer-based instruction texts, diagrams and checklists replaces juggling manuals and clipboards, and tetherless computer system access allows free motion throughout a cabin while monitoring and operating equipment.

  5. Augmented Reality for Android Platform

    OpenAIRE

    Lžičař, Radek

    2011-01-01

    Tato diplomová práce se zabývá návrhem a realizací systému rozšířené reality na mobilní platformě Google Android s využitím polohových senzorů. Aplikace slouží jako navigace a zobrazuje geografické body zájmu. Práce se věnuje problematice rozšířené reality na mobilních zařízeních, návrhem vlastního frameworku a poté zmiňuje detaily implementace vybraných problémů. Nakonec je popsán způsob testování a zhodnoceny výsledky práce. This thesis describes design and implementation of augment...

  6. Augmented Reality Repair Guidance System

    Directory of Open Access Journals (Sweden)

    Sidharth Bhatia

    2012-07-01

    Full Text Available The daily life of a common man revolves around various forms of appliances/gadgets he uses throughout the day such as a mobile phone, laptop, printer, microwave oven, washing machine, etc. Although these appliances/gadgets are taken by most of the people for granted, the problem occurs when any of these things do not work as they are expected to. Getting them to the repair shops for every small glitch is expensive as well as time consuming. Although most of the companies which produce these appliances/gadgets do supply them with basic manuals, which deal with how to solve these minor issues, but reading them and at the same time repairing the corresponding appliance/gadget can be a frustrating task at times. These problems can be reduced to a large extent if some kind of live guidance is available. In this paper we propose a method to do so with the help of an augmented reality based system that will guide the user to carry out small scale repair jobs on these gadgets. All that is required is a decent webcam and a computing device, with a processor of 1 GHz or more and a display screen.

  7. Augmented reality: past, present, future

    Science.gov (United States)

    Inzerillo, Laura

    2013-03-01

    A great opportunity has permitted to carry out a cultural, historical, architectural and social research with great impact factor on the international cultural interest. We are talking about the realization of a museum whose the main theme is the visit and the discovery of a monument of great prestige: the monumental building the "Steri" in Palermo. The museum is divided into sub themes including the one above all, that has aroused the international interest so much that it has been presented the instance to include the museum in the cultural heritage of UNESCO. It is the realization of a museum path that regards the cells of the Inquisition, which are located just inside of some buildings of the monumental building. The project, as a whole, is faced, in a total view, between the various competences implicated: historic, chemic, architectonic, topographic, drawing, representation, virtual communication, informatics. The birth of the museum will be a sum of the results of all these disciplines involved. Methodology, implementation, fruition, virtual museum, goals, 2D graphic restitution, effects on the cultural heritage and landscape environmental, augmented reality, Surveying 2D and 3D, hi-touch screen, Photogrammetric survey, Photographic survey, representation, drawing 3D and more than this has been dealt with this research.

  8. Digital Augmented Reality Audio Headset

    Directory of Open Access Journals (Sweden)

    Jussi Rämö

    2012-01-01

    Full Text Available Augmented reality audio (ARA combines virtual sound sources with the real sonic environment of the user. An ARA system can be realized with a headset containing binaural microphones. Ideally, the ARA headset should be acoustically transparent, that is, it should not cause audible modification to the surrounding sound. A practical implementation of an ARA mixer requires a low-latency headphone reproduction system with additional equalization to compensate for the attenuation and the modified ear canal resonances caused by the headphones. This paper proposes digital IIR filters to realize the required equalization and evaluates a real-time prototype ARA system. Measurements show that the throughput latency of the digital prototype ARA system can be less than 1.4 ms, which is sufficiently small in practice. When the direct and processed sounds are combined in the ear, a comb filtering effect is brought about and appears as notches in the frequency response. The comb filter effect in speech and music signals was studied in a listening test and it was found to be inaudible when the attenuation is 20 dB. Insert ARA headphones have a sufficient attenuation at frequencies above about 1 kHz. The proposed digital ARA system enables several immersive audio applications, such as a virtual audio tourist guide and audio teleconferencing.

  9. Mixing Augmentation of Supersonic Streams

    Institute of Scientific and Technical Information of China (English)

    S. Hari; J. Kurian

    2001-01-01

    The use of passive mixing devices to enhance the mixing of supersonic streams is of importance in many aerospace and allied applications. A comparative experimental study of two such non-conventional axi symmetric supersonic nozzles for mixing augmentation is undertaken in the present study. The nozzles studied are conventional convergent divergent (c-d), ramp, and nozzle with secondary tabs at the Mach number of 1.7.The freejet characteristics of the jets from the nozzles and the confined mixing of the jets under isothermal and non-isothermal conditions were experimentally investigated. In addition, schlieren and laser light sheet methods are employed for flow visualization. Results of experiments on freejet showed rapid total pressure decay, higher jet width, and increased shear layer width in the case of jets from non-conventional nozzles. Also visualized were complex shock patterns in these jets. The confined mixing studies in both cold and hot flows confirm the increased mixing behavior of non-conventional nozzles within shorter mixing duct lengths. Laser sheet visualization clearly demonstrated the formation of streamwise vortices, which accounts for the enhanced mixing while employing the nozzles under study.

  10. Augmented reality for wafer prober

    Science.gov (United States)

    Gilgenkrantz, Pascal

    2011-03-01

    The link between wafer manufacturing and wafer test is often weak: without common information system, Test engineers have to read locations of test structures from reference documents and search them on the wafer prober screen. Mask Data Preparation team is ideally placed to fill this gap, given its relationship with both design and manufacturing sides. With appropriate design extraction scripts and design conventions, mask engineers can provide exact wafer locations of all embedded test structures to avoid a painful camera search. Going a step further, it would be a great help to provide to wafer probers a "map" of what was build on wafers. With this idea in mind, mask design database can simply be provided to Test engineers; but the real added value would come from a true integration of real-wafer camera views and design database used for wafer manufacturing. As proven by several augmented reality applications, like Google Maps' mixed Satellite/Map view, mixing a real-world view with its theoretical model is very useful to understand the reality. The creation of such interface can only be made by a wafer prober manufacturer, given the high integration of these machines with their control panel. But many existing software libraries could be used to plot the design view matching the camera view. Standard formats for mask design are usually GDSII and OASIS (SEMI P39 standard); multiple free software and commercial viewers/editors/libraries for these formats are available.

  11. A review of Dichlorvos toxicity in fish

    Directory of Open Access Journals (Sweden)

    SUCHISMITA DAS

    2013-04-01

    Full Text Available Among the wide majority of pesticides, dichlorvos (2, 2-dichlorovinyl dimethyl phosphate, a organophosphate compound, is commonly used as agricultural insecticide. It is extremely toxic to non target organisms like fish and hampers fish health through impairment of metabolism, sometimes leading to death. As one of the few organophosphates still registered for use, dichlorvos has elicited worldwide concern for many reasons. This study is a review of potential adverse effects of dichlorvos in fish

  12. Comparison of patients undergoing switching versus augmentation of antipsychotic medications during treatment for schizophrenia

    Directory of Open Access Journals (Sweden)

    Ascher-Svanum H

    2012-03-01

    Full Text Available Haya Ascher-Svanum, Alan JM Brnabic, Anthony H Lawson, Bruce J Kinon, Virginia L Stauffer, Peter D Feldman, Katarina KelinLilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana, USAAbstract: It is often difficult to determine whether a patient may best benefit by augmenting their current medication or switching them to another. This post-hoc analysis compares patients’ clinical and functional profiles at the time their antipsychotic medications were either switched or augmented. Adult outpatients receiving oral antipsychotic treatment for schizophrenia were assessed during a 12-month international observational study. Clinical and functional measures were assessed at the time of first treatment switch/augmentation (0–14 days prior and compared between Switched and Augmented patient groups. Due to low numbers of patients providing such data, interpretations are based on effect sizes. Data at the time of change were available for 87 patients: 53 Switched and 34 Augmented. Inadequate response was the primary reason for treatment change in both groups, whereas lack of adherence was more prevalent in the Switched group (26.4% vs 8.8%. Changes in clinical severity from study initiation to medication change were similar, as indicated by Clinical Global Impressions–Severity scores. However, physical and mental component scores of the 12-item Short-Form Health Survey improved in the Augmented group, but worsened in the Switched group. These findings suggest that the patient’s worsening or lack of meaningful improvement prompts clinicians to switch antipsychotic medications, whereas when patients show some improvement, clinicians may be more likely to try bolstering the improvements through augmentation. Current findings are consistent with physicians’ stated reasons for switching versus augmenting antipsychotics in the treatment of schizophrenia. Confirmation of these findings requires further research

  13. The Virtuality and Reality of Augmented Reality

    Directory of Open Access Journals (Sweden)

    Jung Yeon Ma

    2007-02-01

    Full Text Available This thesis explores the creative possibilities and implications of Augmented Reality, not just as a specific technology of computer science, but as one of high technologies that influence people’s perception and even the concepts of the real and the virtual. For a broader definition of Augmented Reality which has a unique status between virtual environment and real environment, the virtuality and the reality of Augmented Reality are discussed in an interdisciplinary context such as arts, philosophy, and film and animation studies. This approach is rooted in the belief that theory of new media ought to traverse and encompass all realms of academic categories.

  14. Prevention Programs to Augment Family and Child Resilience Can Have Lasting Effects on Suicidal Risk.

    Science.gov (United States)

    Brent, David

    2016-04-01

    In this commentary, the effects of four family-based preventive interventions designed to augment parent and child resilience, originally designed to prevent mental health and substance abuse, on suicide ideation and attempts are reviewed. Three of the preventive interventions showed a beneficial effect either on child suicide ideation or attempts, and one found a beneficial effect on parental suicidal ideation. The duration of effects in two of these studies was well longer than a decade. These studies suggest that interventions to augment family and child resiliency originally designed to prevent mental health and substance abuse disorders can also have beneficial, often long-term, effects on suicidal ideation and behavior. PMID:27094110

  15. Consumption patterns and why people fish

    International Nuclear Information System (INIS)

    Recreational and subsistence fishing play major roles in the lives of any people, although their importance in urban areas is often underestimated. There are fish and shellfish consumption advisories in the new York-New Jersey harbor estuary, particularly in the waters of the Newark Bay Complex. This paper examines fishing behavior, consumption patterns, and the reasons that people fish in the Newark Bay Complex. I test the null hypotheses that there are no differences among Asians, Blacks, Hispanics, and whites in consumption patterns for fish and crabs and in the reasons that they fish or crab. Most people either fished or crabbed, but not both. People who fish and crab ate more grams of crab than fish in a given meal; people who crab only consumed more grams of crab at a meal than those who fish only consumed of fish. Although 30% or more of the people who fished and crabbed in the Newark Bay Complex did not eat their self-caught fish or crabs 8-25% of the people ate more than 1500 g/month. Some people angling in the Newark Bay Complex are eating crabs at a rate well over 1500 g/month, and about 70% are eating crabs even though there is a total ban on both harvest and consumption because of the health risks from dioxin. Consumption patterns were negatively correlated with mean income and positively correlated with mean age. Most people rated relaxation and being outdoors the highest reasons or angling, although on an open-ended question they usually listed recreation. There were no ethnic differences in reasons for angling, although other studies have shown ethnic differences in consumption. Obtaining fish or crabs to eat, give away, trade, or sell were rated low, suggesting that consumption advisories fail partly because people are not primarily fishing or food

  16. Augmented Reality Simulations on Handheld Computers

    Science.gov (United States)

    Squire, Kurt; Klopfer, Eric

    2007-01-01

    Advancements in handheld computing, particularly its portability, social interactivity, context sensitivity, connectivity, and individuality, open new opportunities for immersive learning environments. This article articulates the pedagogical potential of augmented reality simulations in environmental engineering education by immersing students in…

  17. Transumbilical Breast Augmentation Is Safe and Effective

    OpenAIRE

    Dowden, Richard V.

    2008-01-01

    Transumbilical breast augmentation (TUBA) has proved to be safe and effective. This article highlights the advantages, disadvantages, gives an overview of the technique, discusses complications, and provides factual information to counter false negative information about the procedure.

  18. Muzzle shunt augmentation of conventional railguns

    Energy Technology Data Exchange (ETDEWEB)

    Parker, J.V. (Los Alamos National Lab., NM (United States). Physics Div.)

    1991-01-01

    This paper reports on augmentation which is a technique for reducing the armature current and hence the armature power dissipation in a plasma armature railgun. In spite of the advantages, no large augmented railguns have been built, primarily due to the mechanical and electrical complexity introduced by the extra conductors required. it is possible to achieve some of the benefits of augmentation in a conventional railgun by diverting a fraction {phi} of the input current through a shunt path at the muzzle of the railgun. In particular, the relation between force and armature current is the same as that obtained in an n-turn, series-connected augmented railgun with n = 1/(1 {minus} {phi}). The price of this simplification is a reduction in electrical efficiency and some additional complexity in the external electrical system.

  19. Augmenting the Web through Open Hypermedia

    DEFF Research Database (Denmark)

    Bouvin, N.O.

    2003-01-01

    Based on an overview of Web augmentation and detailing the three basic approaches to extend the hypermedia functionality of the Web, the author presents a general open hypermedia framework (the Arakne framework) to augment the Web. The aim is to provide users with the ability to link, annotate, a...... otherwise structure Web pages, as they see fit. The paper further discusses the possibilities of the concept through the description of various experiments performed with an implementation of the framework, the Arakne Environment......Based on an overview of Web augmentation and detailing the three basic approaches to extend the hypermedia functionality of the Web, the author presents a general open hypermedia framework (the Arakne framework) to augment the Web. The aim is to provide users with the ability to link, annotate, and...

  20. Affordances in Mobile Augmented Reality Applications

    Directory of Open Access Journals (Sweden)

    Tor Gjøsæter

    2014-10-01

    Full Text Available This paper explores the affordances of augmented reality content in a mobile augmented reality application. A user study was conducted by performing a multi-camera video recording of seven think aloud sessions. The think aloud sessions consisted of individual users performing tasks, exploring and experiencing a mobile augmented reality (MAR application we developed for the iOS platform named ARad. We discuss the instrumental affordances we observed when users interacted with augmented reality content, as well as more complex affordances rising from conventions from media content, AR and the traditional WIMP paradigm. We find that remediation of traditional newspaper content through the MAR medium can provide engaging, pleasing and exciting user experiences. However, the some of the content still suffers from being shoveled onto the MAR platform without adapting it properly. Finally, we discuss what content was most successfully mediated to the user and how the content impacts the user experience.

  1. ARC Code TI: ROC Curve Code Augmentation

    Data.gov (United States)

    National Aeronautics and Space Administration — ROC (Receiver Operating Characteristic) curve Code Augmentation was written by Rodney Martin and John Stutz at NASA Ames Research Center and is a modification of...

  2. Fish Tales

    International Nuclear Information System (INIS)

    This talk is about fishing and the friendships that have resulted in its pursuit. It is also about theoretical physics, and the relationship of imagination and fantasy to the establishment of ideas about nature. Fishermen, like theoretical physicists, are well known for their inventive imaginations. Perhaps neither are as clever as sailors, who conceived of the mermaid. If one doubts the power of this fantasy, one should remember the ghosts of the many sailors who drowned pursuing these young nymphs. An extraordinary painting by J. Waterhouse is shown as Fig. 1. The enchantment of a mermaid must reflect an extraordinary excess of imagination on the part of the sailor, perhaps together with an impractical turn of mind. A consummated relationship with a mermaid is after all, by its very nature a fantasy incapable of realization. To a theoretical physicist, she is symbolic of many ideas we develop. There are many truths known to fisherman in which one might also find parallels to the goals of scientists: (1) A fish is the only animal that keeps growing after its death; (2) Nothing makes a fish bigger than almost being caught; (3) ''...of all the liars among mankind, the fisherman is the most trustworthy.'' (William Sherwood Fox, in Silken Lines and Silver Hooks); and (4) Men and fish are alike. They both get into trouble when they open their mouths. These quotes may be interpreted as reflecting skepticism regarding the honesty of fisherman, and probably do not reflect adequate admiration for a creative imagination. Is it fair to criticize a person for believing a falsehood that he or she sincerely believes to be true? The fisherman simultaneously invents the lie, and believes in it himself. The parallel with theoretical physics is perhaps only approximate, although we physicists may invent stories that we come to believe, on some rare occasions our ideas actually correspond to a more or less true descriptions of nature. These minor philosophical differences are not

  3. Fish Tales

    Energy Technology Data Exchange (ETDEWEB)

    McLerran, L.

    2010-07-06

    This talk is about fishing and the friendships that have resulted in its pursuit. It is also about theoretical physics, and the relationship of imagination and fantasy to the establishment of ideas about nature. Fishermen, like theoretical physicists, are well known for their inventive imaginations. Perhaps neither are as clever as sailors, who conceived of the mermaid. If one doubts the power of this fantasy, one should remember the ghosts of the many sailors who drowned pursuing these young nymphs. An extraordinary painting by J. Waterhouse is shown as Fig. 1. The enchantment of a mermaid must reflect an extraordinary excess of imagination on the part of the sailor, perhaps together with an impractical turn of mind. A consummated relationship with a mermaid is after all, by its very nature a fantasy incapable of realization. To a theoretical physicist, she is symbolic of many ideas we develop. There are many truths known to fisherman in which one might also find parallels to the goals of scientists: (1) A fish is the only animal that keeps growing after its death; (2) Nothing makes a fish bigger than almost being caught; (3) ''...of all the liars among mankind, the fisherman is the most trustworthy.'' (William Sherwood Fox, in Silken Lines and Silver Hooks); and (4) Men and fish are alike. They both get into trouble when they open their mouths. These quotes may be interpreted as reflecting skepticism regarding the honesty of fisherman, and probably do not reflect adequate admiration for a creative imagination. Is it fair to criticize a person for believing a falsehood that he or she sincerely believes to be true? The fisherman simultaneously invents the lie, and believes in it himself. The parallel with theoretical physics is perhaps only approximate, although we physicists may invent stories that we come to believe, on some rare occasions our ideas actually correspond to a more or less true descriptions of nature. These minor philosophical

  4. Integrating Hypermedia Techniques with Augmented Reality Environments

    OpenAIRE

    Sinclair, Patrick

    2004-01-01

    Augmented Reality systems, which overlay virtual information over the real world, can benefit greatly from the techniques established by the Open Hypermedia research field. Storing information and links separately from a document can be advantageous for augmented reality applications and can enable the adaption of content to suit users’ preferences. This thesis explores how Open Hypermedia systems might be used as the information systems behind AR environments. This provides benefits to augme...

  5. Minimal inframammary incision for breast augmentation

    OpenAIRE

    Fanous, Nabil; Tawilé, Caroline; Brousseau, Valérie J

    2008-01-01

    The inframammary approach in breast augmentation, still the most popular technique among plastic surgeons, has always been hampered by the undesirable appearance of its scar. The present paper describes a modified approach to inframammary augmentation with saline-filled prostheses. This approach uses a very short incision, thus resulting in a much less noticeable scar. The surgical technique is easy to learn, simple to execute, does not necessitate any special equipment and gives consistent r...

  6. Late unilateral hematoma after breast augmentation

    OpenAIRE

    Peters, Walter; Fornasier, Victor; Howarth, David

    2014-01-01

    Incidence data regarding late hematoma following breast augmentation do not exist, nor has its etiology been elucidated. Hematomas have been reported to develop months to decades after augmentation with various types of implants, even in the absence of trauma. This study reviewed the occurrence of late hematoma in five patients who received smooth, round silicone gel implants in a single-surgeon practice over a 30-year period. All patients presented with progressive enlargement of the involve...

  7. Augmented spaces, a look beyond advertising

    OpenAIRE

    Oana Andreea Căplescu

    2014-01-01

    From billboards to urban screens and now to media facades, the augmentation of our cities has expanded, changing social behaviours and public space consumption. Smart buildings are being developed and, much like the smartphones, these hybrids are not only in sci-fi movies anymore. One of the main promoters of media facades and media architecture has been the advertising industry. But artists and designers showed the potential of different approaches, experimenting with digitally augmented spa...

  8. Augmenting SCORM Manifests with Adaptive Links

    OpenAIRE

    Abdullah, NA; Bailey, CP; Davis, HC

    2004-01-01

    This paper describes an experiment to augment SCORM manifests with adaptive links using AuldLinky in order to promote content reusability, interoperability and personalized e-learning. Our technique involves the automatic deduction of a concept map from a manifest and the transformation of its pertinent elements into FOHM (Fundamental Object Hypermedia Model) objects before augmenting the information with complimentary and adaptive links using AuldLinky.

  9. Intraoperative Endoscopic Augmented Reality in Third Ventriculostomy

    OpenAIRE

    Ciucci, Matteo

    2009-01-01

    In neurosurgery, as a result of the brain-shift, the preoperative patient models used as a intraoperative reference change. A meaningful use of the preoperative virtual models during the operation requires for a model update. The NEAR project, Neuroendoscopy towards Augmented Reality, describes a new camera calibration model for high distorted lenses and introduces the concept of active endoscopes endowed with with navigation, camera calibration, augmented reality and triangulation modules.

  10. Review of passive heat transfer augmentation techniques

    Energy Technology Data Exchange (ETDEWEB)

    Dewan, A.; Mahanta, P.; Sumithra Raju, K. [Indian Institute of Technology, Guwahati (India). Dept. of Mechanical Engineering; Suresh Kumar, P. [Indian Institute of technology, Kharagpur (India). Dept. of Oocean Engineering and Naval Architecture

    2004-12-01

    Heat transfer augmentation techniques (passive, active or a combination of passive and active methods) are commonly used in areas such as process industries, heating and cooling in evaporators, thermal power plants, air- conditioning equipment, refrigerators, radiators for space vehicles, automobiles, etc. Passive techniques, where inserts are used in the flow passage to augment the heat transfer rate, are advantageous compared with active techniques, because the insert manufacturing process is simple and these techniques can be easily employed in an existing heat exchanger. In design of compact heat exchangers, passive techniques of heat transfer augmentation can play an important role if a proper passive insert configuration can be selected according to the heat exchanger working condition (both flow and heat transfer conditions). In the past decade, several studies on the passive techniques of heat transfer augmentation have been reported. The present paper is a review on progress with the passive augmentation techniques in the recent past and will be useful to designers implementing passive augmentation techniques in heat exchange. Twisted tapes, wire coils, ribs, fins, dimples, etc., are the most commonly used passive heat transfer augmentation tools. In the present paper, emphasis is given to works dealing with twisted tapes and wire coils because, according to recent studies, these are known to be economic heat transfer augmentation tools. The former insert is found to be suitable in a laminar flow regime and the latter is suitable for turbulent flow. The thermohydraulic behaviour of an insert mainly depends on the flow conditions (laminar or turbulent) apart from the insert configurations. The present review is organized in five different sections: twisted tape in laminar flow; twisted tape in turbulent flow; wire coil in laminar flow; wire coil in turbulent flow; other inserts such as ribs, fins, dimples, etc. (author)

  11. Muzzle shunt augmentation of conventional railguns

    Energy Technology Data Exchange (ETDEWEB)

    Parker, J.V.

    1990-01-01

    Augmentation is a well-known technique for reducing the armature current and hence the armature power dissipation in a plasma armature railgun. In spite of the advantages, no large augmented railguns have been built, primarily due to the mechanical and electrical complexity introduce by the extra conductors required. It is possible to achieve some of the benefits of augmentation in conventional railgun by diverting a fraction {phi} of the input current through a shunt path at the muzzle of the railgun. In particular, the relation between force and armature current is the same as that obtained in an n-turn, series connected augmented railgun with n = 1/(1-{phi}). The price of this simplification is a reduction in electrical efficiency and some additional complexity in the external electrical system. Additions to the electrical system are required to establish the shunt current and to control its magnitude during projectile acceleration. The relationship between muzzle shunt augmentation and conventional series augmentation is developed and various techniques is developed and various techniques for establishing and controlling the shunt current are illustrated with a practical example. 5 refs., 8 figs., 2 tabs.

  12. Impulse generated during unsteady maneuvering of swimming fish

    Science.gov (United States)

    Epps, Brenden P.; Techet, Alexandra H.

    The relationship between the maneuvering kinematics of a Giant Danio (Danio aequipinnatus) and the resulting vortical wake is investigated for a rapid, 'C'-start maneuver using fully time-resolved (500 Hz) particle image velocimetry (PIV). PIV illuminates the two distinct vortices formed during the turn. The fish body rotation is facilitated by the initial, or "maneuvering" vortex formation, and the final fish velocity is augmented by the strength of the second, "propulsive" vortex. Results confirm that the axisymmetric vortex ring model is reasonable to use in calculating the hydrodynamic impulse acting on the fish. The total linear momentum change of the fish from its initial swimming trajectory to its final swimming trajectory is balanced by the vector sum of the impulses of both vortex rings. The timing of vortex formation is uniquely synchronized with the fish motion, and the choreography of the maneuver is addressed in the context of the resulting hydrodynamic forces.

  13. Colville Tribal Fish Hatchery, annual report 2002

    International Nuclear Information System (INIS)

    Federal hydropower projects as well as private power utility systems have had a major negative impact upon anadromous fish resources that once flourished in the Columbia River and it's tributaries. Several areas have been completely blocked to anadromous fish by dams, destroying the primary food resource (salmon) for many native people forcing them to rely heavily upon resident fish to replace these lost resources. The Colville Tribal Fish Hatchery is an artificial production program that addresses the loss of anadromous fish resources in the Upper Columbia Sub-Region within the ''blocked area'' created by the construction of Chief Joseph and Grand Coulee Dams. This project enhances resident fisheries located in the Intermountain and Columbia Cascade Provinces, specifically within the Colville Reservation portion of the Upper Columbia, SanPoil and Oakanogan Sub-Basins. The project partially mitigates for anadromous fish losses through protection/augmentation of resident fish populations to enhance fishery potential (i.e. in-place, out-of-kind mitigation) pursuant to Resident Fish Substitution Policy of the Northwest Power Planning Councils Fish and Wildlife Program. The hatchery was accepted into the Council's Fish and Wildlife Program in 1984 and the hatchery was completed in 1990. The Colville Tribal Hatchery (CTH) is located on the northern bank of the Columbia River just down stream of the town of Bridgeport, Washington that is just down stream of Chief Joseph Dam. The hatchery is located on land owned by the Colville Tribes. The minimum production quota for this facility is 22,679 kg (50,000 lbs.) of trout annually. All fish produced are released into reservation waters, including boundary waters in an effort to provide a successful subsistence/recreational fishery for Colville Tribal members and provide for a successful nonmember sport fishery. The majority of the fish distributed from the facility are intended to support ''carry-over'' fisheries. Fish

  14. BACTERIAL DESEASES IN SEA FISH

    Directory of Open Access Journals (Sweden)

    Ivančica Strunjak-Perović

    1997-10-01

    Full Text Available With development of the fish culturing in the sea, the interest in their health also increased. The reason for this are diseases or rather mortality that occur in such controlled cultures and cause great economic losses. By growing large quantities of fish in rather small species, natural conditions are changed, so fish is more sensitive and prone to infection agents (viruses, bacteria, parasites. Besides, a large fish density in the cultural process accelerates spreading if the diseases, but also enables a better perception of them. In wild populations sick specimen very quickly become predator’s prey, witch makes it difficult to note any pathological changes in such fish. There are lots of articles on viral, bacterial and parasitic diseases nowdays, but this work deals exclusively with bacterial deseases that occur in the controlled sea cultures (vibriosis, furunculosis, pastherelosis, nocardiosis, mycobaceriosis, edwardsielosis, yersiniosis, deseases caused by bacteria of genera Flexibacter, Pseudomonas, Aeromonas, Streptococus and bacteria nephryithis. Yet, the knowledge of these deseases vary, depending on wether a fish species is being cultured for a longer period of time or is only being introduced in the controlled culture.

  15. Fishing amplifies forage fish population collapses

    Science.gov (United States)

    Essington, Timothy E.; Moriarty, Pamela E.; Froehlich, Halley E.; Hodgson, Emma E.; Koehn, Laura E.; Oken, Kiva L.; Siple, Margaret C.; Stawitz, Christine C.

    2015-01-01

    Forage fish support the largest fisheries in the world but also play key roles in marine food webs by transferring energy from plankton to upper trophic-level predators, such as large fish, seabirds, and marine mammals. Fishing can, thereby, have far reaching consequences on marine food webs unless safeguards are in place to avoid depleting forage fish to dangerously low levels, where dependent predators are most vulnerable. However, disentangling the contributions of fishing vs. natural processes on population dynamics has been difficult because of the sensitivity of these stocks to environmental conditions. Here, we overcome this difficulty by collating population time series for forage fish populations that account for nearly two-thirds of global catch of forage fish to identify the fingerprint of fisheries on their population dynamics. Forage fish population collapses shared a set of common and unique characteristics: high fishing pressure for several years before collapse, a sharp drop in natural population productivity, and a lagged response to reduce fishing pressure. Lagged response to natural productivity declines can sharply amplify the magnitude of naturally occurring population fluctuations. Finally, we show that the magnitude and frequency of collapses are greater than expected from natural productivity characteristics and therefore, likely attributed to fishing. The durations of collapses, however, were not different from those expected based on natural productivity shifts. A risk-based management scheme that reduces fishing when populations become scarce would protect forage fish and their predators from collapse with little effect on long-term average catches. PMID:25848018

  16. Fish tapeworm infection

    Science.gov (United States)

    Fish tapeworm infection is an intestinal infection with the tapeworm parasite found in fish. ... The fish tapeworm ( Diphyllobothrium latum ) is the largest parasite that infects humans. Humans become infected when they eat raw ...

  17. Sport Fishing Regulations

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The regulations for sport fishing on St. Vincent National Wildlife Refuge are outlined in this document. Fishing is only permitted from sunrise to sunset, and only...

  18. Accumulation of heavy metals and human health risk assessment via the consumption of freshwater fish Mastacembelus armatus inhabiting, thermal power plant effluent loaded canal

    OpenAIRE

    Javed, Mehjbeen; Usmani, Nazura

    2016-01-01

    Bioaccumulation of six heavy metals (Mn, Fe, Co, Ni, Cu, Zn) in the muscle of highly consumed fish species (Mastacembelus armatus) were measured using atomic absorption spectrometer. Fe (213.29 mg/kg dry weight) concentration was the most, followed by Zn (186.19 mg/kg dry weight), Ni (58.98 mg/kg dry weight), Cu (41.36 mg/kg dry weight), Co (9.06 mg/kg dry weight) and Mn (9.03 mg/kg dry weight). Estimated daily intake of heavy metals was calculated by mean fish consumption rate 19.5 × 10−3 kg...

  19. Fish welfare: Fish capacity to experience pain

    Directory of Open Access Journals (Sweden)

    Vučinić Marijana

    2009-01-01

    Full Text Available Teleost fish possess similar nociceptive processing systems to those found in terrestrial vertebrates. It means that they react to potential painful stimuli in a similar manner as mammals and birds. However, the welfare of fish has been the focus of less research than that of higher vertebrates. Humans may affect the welfare of fish through fisheries, aquaculture and a number of other activities. There is scientific evidence to support the assumption that fish have the capacity to experience pain because they possess functional nociceptors, endogenous opioids and opioid receptors, brain structures involved in pain processing and pathways leading from nociceptors to higher brain structures. Also, it is well documented that some anaesthetics and analgesics may reduce nociceptive responses in fish. Behavioural indicators in fish such as lip-rubbing and rocking behaviours are the best proof that fish react to potential painful stimuli. This paper is an overview of some scientific evidence on fish capacity to experience pain.

  20. IMPACT OF JUTE RETTING ON NATIVE FISH DIVERSITY AND AQUATIC HEALTH OF ROADSIDE TRANSITORY WATER BODIES: AN ASSESSMENT IN EASTERN INDIA

    OpenAIRE

    Dipankar Ghosh; Jayanta Kumar Biswas

    2015-01-01

    Roadside transitory water bodies being manmade depressions have a great ecological and socio-economic importance from years. The effects of agricultural runoffs, jute retting, macro-phytes infestations and inadequate rainfall in changed climate often degrade transitory water bodies’ environment while the biodiversity have impacted severely because of population pressure, over exploitation and indiscriminate use of fine meshed fishing gears as a whole. Physico-chemical and biological analysis ...

  1. Prototype of an Augmented Reality User Manual App

    OpenAIRE

    Palm, Fredrik; Källström, Filip

    2014-01-01

    This thesis describes how augmented reality can be used when developing an instructional application. After studying augmented reality apps and papers, a prototype for mobile devices was developed to discover the possibilities that augmented reality offers and show how issues inherent to the technology can be solved. The app was developed with usability in mind, with consideration for how well suited each feature was for augmented reality. Our results show that it is possible to use augmented...

  2. ARSC: Augmented Reality Student Card--An Augmented Reality Solution for the Education Field

    Science.gov (United States)

    El Sayed, Neven A. M.; Zayed, Hala H.; Sharawy, Mohamed I.

    2011-01-01

    Augmented Reality (AR) is the technology of adding virtual objects to real scenes through enabling the addition of missing information in real life. As the lack of resources is a problem that can be solved through AR, this paper presents and explains the usage of AR technology we introduce Augmented Reality Student Card (ARSC) as an application of…

  3. Augmented Reality for the Improvement of Remote Laboratories: An Augmented Remote Laboratory

    Science.gov (United States)

    Andujar, J. M.; Mejias, A.; Marquez, M. A.

    2011-01-01

    Augmented reality (AR) provides huge opportunities for online teaching in science and engineering, as these disciplines place emphasis on practical training and unsuited to completely nonclassroom training. This paper proposes a new concept in virtual and remote laboratories: the augmented remote laboratory (ARL). ARL is being tested in the first…

  4. Fish for Feed vs Fish for Food

    OpenAIRE

    Allan, Geoff L.

    2004-01-01

    Aquaculture is the fastest-growing food producing industry sector in the world. Demand for feed ingredients, particularly for preferred protein sources such as fishmeal, fish oil and ‘trash fish’, has also increased, raising questions about sustainability and uses of fish for aquaculture feeds or directly as human food. Approximately 30 million metric tonnes (MMT) of fish from capture fisheries are used each year to produce fishmeal and fish oil. The species used are not usually consumed dire...

  5. Stability-Augmentation Devices for Miniature Aircraft

    Science.gov (United States)

    Wood, RIchard M.

    2005-01-01

    Non-aerodynamic mechanical devices are under consideration as means to augment the stability of miniature autonomous and remotely controlled aircraft. Such aircraft can be used for diverse purposes, including military reconnaissance, radio communications, and safety-related monitoring of wide areas. The need for stability-augmentation devices arises because adverse meteorological conditions generally affect smaller aircraft more strongly than they affect larger aircraft: Miniature aircraft often become uncontrollable under conditions that would not be considered severe enough to warrant grounding of larger aircraft. The need for the stability-augmentation devices to be non-aerodynamic arises because there is no known way to create controlled aerodynamic forces sufficient to counteract the uncontrollable meteorological forces on miniature aircraft. A stability-augmentation device of the type under consideration includes a mass pod (a counterweight) at the outer end of a telescoping shaft, plus associated equipment to support the operation of the aircraft. The telescoping shaft and mass pod are stowed in the rear of the aircraft. When deployed, they extend below the aircraft. Optionally, an antenna for radio communication can be integrated into the shaft. At the time of writing this article, the deployment of the telescoping shaft and mass pod was characterized as passive and automatic, but information about the deployment mechanism(s) was not available. The feasibility of this stability-augmentation concept was demonstrated in flights of hand-launched prototype aircraft.

  6. AB027. Penile augmentation: informed text briefing

    Science.gov (United States)

    Park, Nam Cheol

    2016-01-01

    The men’s desire to have larger and longer penis have created endless medical demands throughout human history. Until up to date, various medical skills for penile augmentation have developed in aspect of experimental and clinical outcome. Recently with throwing away socially unacceptable ideas, the need for penile augmentation is considered as equivalent level with mammoplasty for breast augmentation in women for cosmetic and psychological reason. Concurrently advanced technologies in medical material and tissue engineering provide a variety of options to features functional plastic surgery as well as defected tissue compensation procedures. This creative description works accordingly presents state of art knowledge on the penile augmentation with more than 100 full-colored helpful illustrations clarifying penile surgical anatomy, operative procedures by experienced surgeon from the traditional fat transfer to the penile disassembly technique, the newest tissue engineering techniques by researchers with valuable data of world top level, auxiliary medical devices, and how to reconstruct for damaged penis by a quack or accident. Obviously this text book will be a great guidebook in clinical practice for all who are involved or interested in the penile augmentation procedure.

  7. Irradiated homologous costal cartilage for augmentation rhinoplasty

    Energy Technology Data Exchange (ETDEWEB)

    Lefkovits, G. (Lenox Hill Hospital, New York, NY (USA))

    1990-10-01

    Although the ideal reconstructive material for augmentation rhinoplasty continues to challenge plastic surgeons, there exists no report in the literature that confines the use of irradiated homologous costal cartilage, first reported by Dingman and Grabb in 1961, to dorsal nasal augmentation. The purpose of this paper is to present a retrospective analysis of the author's experience using irradiated homologous costal cartilage in augmentation rhinoplasty. Twenty-seven dorsal nasal augmentations were performed in 24 patients between 16 and 49 years of age with a follow-up ranging from 1 to 27 months. Good-to-excellent results were achieved in 83.3% (20 of 24). Poor results requiring revision were found in 16.7% (4 of 24). Complication rates included 7.4% infection (2 of 27) and 14.8% warping (4 of 27). The resorption rate was zero. These results compare favorably with other forms of nasal augmentation. Advantages and disadvantages of irradiated homologous costal cartilage are discussed.

  8. Augment-type two stage accelerator

    International Nuclear Information System (INIS)

    When a flying body accelerated by a gas gun at a first stage enters into an augment rail passing through an introduction tube, an ignition capacitor for initial plasmas is turned ON to apply a voltage between the augment rails. Subsequently, the accelerating gas present behind the flying body is formed into plasmas by a laser, to flow electric current from one of the inner augment rails → plasma armature → the other of the inner augment rails, and additionally accelerate the flying body by Lorentz force formed in this case. Since the plasmas are maintained in a state of higher density than the plasmas obtained by using all of the augment rails, the ignition capacitor for initial plasmas in switched to a power source. As a result, it is possible to flow the maximum current before the plasmas expand, and a large accelerating force and a high magnetic flux density are attained, to improve acceleration performance of the flying body. (N.H.)

  9. The transareolar incision for breast augmentation revisited.

    Science.gov (United States)

    Kompatscher, Peter; Schuler, Christine; Beer, Gertrude M

    2004-01-01

    Of the various possible incisions for breast augmentation, the transareolar access has gained only limited popularity. The potential side effects of this incision are said to be altered nipple sensation, impaired lactation, an increased rate of infections with capsular fibrosis, well visible scar formation with hypopigmentation, and the need for an additional access in case a breast ptosis correction should prove necessary at a later date. The purpose of this retrospective study was to judge advantages and limitations of transareolar breast augmentation, and to verify whether the reluctant attitude toward this surgical approach is justified. A sample of 18 patients with a transareolar, retropectoral breast augmentation was selected for a retrospective evaluation. The suitability of the technique in general was examined together with early postoperative complications, sensory changes, and late complications on the basis of an evaluation system for cosmetic surgical results. The study showed that only women with an areolar diameter of 3.5 cm or more without pronounced breast ptosis were suitable for the transareolar access. No early infections were noted. The rate of capsular fibrosis was 11%. Two years after breast augmentation, 16 women (89%) judged their breast sensation to be normal, but objective assessment showed that mean pressure and vibration sensation were moderately compromised in all parts of the breast. The scars were of good quality, with very little hypopigmentation. With appropriate patient selection, respecting the advantages and limitations, the transareolar incision has its definite place among the different incisions for breast augmentation. PMID:15164231

  10. Key technologies of outdoor augmented reality GIS

    Science.gov (United States)

    Ren, Fu; Du, Qingyun; Wu, Xueling

    2008-12-01

    Augmented Reality (AR) is a growing research area in virtual reality and generates a composite view for the user. It is combination of the real scene viewed by the user and a virtual scene generated by the computer that augments the scene with additional information. About 80 percent information in the real world is related with spatial location. The combination of Geographical information system (GIS) and AR technologies would promote the development of outdoor AR systems, and also would explore a new research direction for GIS. The key technologies of outdoor augmented reality GIS, including basic tracking methods, display devices, typical applications and registration processes, are discussed. In indoor augmented reality's closed environments the tracking of position and head orientation as well as the presentation of information is much more unproblematic than the same task in an outdoor environment. The main application task of outdoor augmented reality GIS is the presentation of information to a user while moving through an unknown region. The system helps to detect automatically objects in sight of a person who need its information. It compares the conventional solutions of 3D registration with, while it discusses their algorithm procedure to basic parameters to give out their advantages and disadvantages at different condition. While affine transformation approach uses the idea of computer graphics and vision technology for reference. Its accuracy is mainly based on the precision and speed of scene feature point extracted from natural or artificial feature.

  11. No Fishing Now,More Fish Later

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Fishing ban for ecological purposes starts on the Pearl River Since April1,a two-month ban on fishing has been imposed on the Pearl River valley in south China.It is the first fishing ban in this area with the purpose of preserving biodiversity in China’s third longest

  12. Fishing Fish Stem Cells and Nuclear Transplants

    OpenAIRE

    Yunhan Hong

    2011-01-01

    Fish has been the subject of various research fields, ranging from ecology, evolution, physiology and toxicology to aquaculture. In the past decades fish has attracted considerable attention for functional genomics, cancer biology and developmental genetics, in particular nuclear transfer for understanding of cytoplasmic-nuclear relationship. This special issue reports on recent progress made in fish stem cells and nuclear transfer.

  13. Handling Occlusions for Robust Augmented Reality Systems

    Directory of Open Access Journals (Sweden)

    Maidi Madjid

    2010-01-01

    Full Text Available Abstract In Augmented Reality applications, the human perception is enhanced with computer-generated graphics. These graphics must be exactly registered to real objects in the scene and this requires an effective Augmented Reality system to track the user's viewpoint. In this paper, a robust tracking algorithm based on coded fiducials is presented. Square targets are identified and pose parameters are computed using a hybrid approach based on a direct method combined with the Kalman filter. An important factor for providing a robust Augmented Reality system is the correct handling of targets occlusions by real scene elements. To overcome tracking failure due to occlusions, we extend our method using an optical flow approach to track visible points and maintain virtual graphics overlaying when targets are not identified. Our proposed real-time algorithm is tested with different camera viewpoints under various image conditions and shows to be accurate and robust.

  14. Resonance frequency analysis of implant stability in augmented and non-augmented sinus sites

    Directory of Open Access Journals (Sweden)

    Amir Moeintaghavi

    2015-12-01

    Full Text Available Background and aim:  Although there have been substantial developments in dental implant therapies, achieving good implant stability (ISQ >60 for implants inserted in augmented sinus sites appears to be challenging in comparison with non-augmented sites due to the high prevalence of bone resorption in posterior regions of maxilla. This study aimed to evaluate and compare the time required to achieve good implant stability between implants inserted in sites that had undergone a sinus augmentation procedure with implants inserted in non-augmented similar regions of maxilla. Methods: Thirty Stroman ITI Dental Implants were inserted in 14 patients (8 females and 6 males with average age of 55 ± 10 years. Fourteen implants were inserted in sinus augmented sites (open sinus elevation and Demineralized Freezed Bone Allograft  or DFDBA 6 months after healing (test group, and 16 implants were inserted into non-augmented  posterior areas of maxilla (control group. The implant stability quotient (ISQ for each implant was measured at the time of insertion (baseline, ISQ0 and at 1, 2 and 3 months later (ISQ1, ISQ2, ISQ3. Residual and augmented bone heights were also recorded. Results: The average residual bone height was 2.92 ± 0.63mm and 10.41 ± 1.46mm for the augmented bone height. The difference between ISQ values in the test and control groups was only significant at the baseline (p=0.023. No significant correlation was found between ISQ and bone height (residual and augmented, and there was no significant correlation between ISQ values and the implant diameter and length. In the test group, the differences between ISQ0 and ISQ1, ISQ1 and ISQ3 and ISQ2 and ISQ3 were all statistically significant (p=0.006, p=0.032, p=0.046. In the control group, the difference was only significant between ISQ0 and ISQ1 (p=0.002. Conclusion:  ISQ values were not statistically significant between implants inserted in natural and augmented bone six months after sinus

  15. MR imaging of the augmented breast

    International Nuclear Information System (INIS)

    Mammographic evaluation of the augmented breast is challenging, since breast implants obscure significant amount of breast tissue while diminishing the effect of compression. Posttherapeutic scarring can make mammographic interpretation even more difficult. MRI has thus evolved into the modality of choice for diagnosing implant complications as well as detection of primary or recurrent breast cancer in these patient population. The present article attemps to give an overview of the MR findings of different breast augmentation and reconstruction techniques, i. e. prosthetic breast implants, breast reconstruction with autogenous tissue, free silicone injections and fat grafts, and their complications. (orig.)

  16. Augmented Reality -tuki paikannukseen perustuvaan palveluun

    OpenAIRE

    Hautamäki, Jaakko

    2013-01-01

    Työn aiheena oli kehittää paikannukseen perustuva Augmented Reality sovellus Android-käyttöjärjestelmälle. Käyttäjä opastetaan lisättyä todellisuutta apuna käyttäen perille valituille kohteille. Sovellus tulee toimimaan osana toimeksiantajan kehittämää mobiiliohjelmistoa. Augmented Reality eli lisätty todellisuus yhdistää todellisen ja virtuaalisen ympäristön interaktiiviseksi kokemukseksi. Lisättyä todellisuutta tarkastellaan työssä lähinnä sovelluskehittäjän, mobiilisovellusten ja oman ...

  17. A Survey on Applications of Augmented Reality

    Directory of Open Access Journals (Sweden)

    Andrea Sanna

    2016-01-01

    Full Text Available The term Augmented Reality (AR refers to a set of technologies and devices able to enhance and improve human perception, thus bridging the gap between real and virtual space. Physical and artificial objects are mixed together in a hybrid space where the user can move without constraints. This mediated reality is spread in our everyday life: work, study, training, relaxation, time spent traveling are just some of the moments in which you can use AR applications.This paper aims to provide an overview of current technologies and future trends of augmented reality as well as to describe the main application domains, outlining benefits and open issues.

  18. Augmented Shelf : Digital Enrichment of Library Shelves

    OpenAIRE

    Kleiner, Eike; Schäfer, Benjamin

    2012-01-01

    Libraries are well known as work places and thus have a common way of everyday use. Unfortunately, there is a gap between the physical and digital contents of a library and its media. By expanding the physical, tangible media with digital information, many new possibilities for interaction would open up for users. With the help of a prototype, we want to show how it is possible to shrink this gap with the use of blends and augmented reality. The Augmented Shelf allows for an overlay of digita...

  19. Minimal inframammary incision for breast augmentation

    Science.gov (United States)

    Fanous, Nabil; Tawilé, Caroline; Brousseau, Valérie J

    2008-01-01

    The inframammary approach in breast augmentation, still the most popular technique among plastic surgeons, has always been hampered by the undesirable appearance of its scar. The present paper describes a modified approach to inframammary augmentation with saline-filled prostheses. This approach uses a very short incision, thus resulting in a much less noticeable scar. The surgical technique is easy to learn, simple to execute, does not necessitate any special equipment and gives consistent results. Decreasing the scar length to an absolute minimum ensures higher patient and surgeon satisfaction. PMID:19554159

  20. Medical imaging and augmented reality. Proceedings

    International Nuclear Information System (INIS)

    This book constitutes the refereed proceedings of the 4th International Workshop on Medical Imaging and Augmented Reality, MIAR 2008, held in Tokyo, Japan, in August 2008. The 44 revised full papers presented together with 3 invited papers were carefully reviewed and selected from 90 submissions. The papers are organized in topical sections on surgical planning and simulation, medical image computing, image analysis, shape modeling and morphometry, image-guided robotics, image-guided intervention, interventional imaging, image registration, augmented reality, and image segmentation. (orig.)

  1. An Augmented Reality Application for Art Exhibitions

    OpenAIRE

    Rodríguez Calatayud, María Nuria; Linares-Pellicer, Jordi; Heras Evangelio, David

    2015-01-01

    The exhibition Think with Your Hands offers a new way to look at illustrations and sketchbooks. It breaks the mould of a traditional show, thanks to an augmented reality project developed by UNIT experimental at Universitat Politècnica de València. This project centres on the work of Pep Carrió and Isidro Ferrer, two of Spain s most prestigious graphic designers, whose sketchbooks, objects and collages come to life when interacting with the mobile devices and augmented reality. Rodrígu...

  2. Plastic fish

    CERN Multimedia

    Antonella Del Rosso

    2015-01-01

    In terms of weight, the plastic pollution in the world’s oceans is estimated to be around 300,000 tonnes. This plastic comes from both land-based and ocean-based sources. A lecture at CERN by chemist Wolfgang Trettnak addressed this issue and highlighted the role of art in raising people’s awareness.   Artwork by Wolfgang Trettnak. Packaging materials, consumer goods (shoes, kids’ toys, etc.), leftovers from fishing and aquaculture activities… our oceans and beaches are full of plastic litter. Most of the debris from beaches is plastic bottles. “PET bottles have high durability and stability,” explains Wolfgang Trettnak, a chemist by education and artist from Austria, who gave a lecture on this topic organised by the Staff Association at CERN on 26 May. “PET degrades very slowly and the estimated lifetime of a bottle is 450 years.” In addition to the beach litter accumulated from human use, rivers bring several ki...

  3. Power stations and fish

    International Nuclear Information System (INIS)

    Some of the interactions of the CEGB's activities with aquatic life are outlined, and current research is highlighted. Fish impingement and entrainment, their significance, and the possible benefits of reducing fish ingress are discussed. The effect on fish of thermal discharges and the use of heated effluents for fish culture are considered. (author)

  4. Meet the surrogate fish

    International Nuclear Information System (INIS)

    This article gives details of the US Department of Energy's innovative research into the development of a sensor system that will work as a surrogate fish to provide information to aid the design of fish-friendly turbines for hydroelectric power plants. The selection of the dams for the testing of sensor fish, the release and recovery of the sensor fish, the recording of the physical forces exerted on fish as they pass through the turbines, and use of the information gathered to build more sensor fish are discussed. Fish investigations conducted at the Pacific Northwest National Laboratory are briefly described. (UK)

  5. Three Kinds of Fish

    DEFF Research Database (Denmark)

    Høst, Jeppe Engset

    2012-01-01

    There are three kinds of fish. Fish you were given, fish you bought and fish you lease. This might sound a bit odd, but it is nevertheless the basis for the activities of Danish commercial fishers since the introduction of transferable fishing concessions (TFCs) in 2007. In the current 2012 reform...... of market based systems are wild speculation, concentration and monopolization of fishing access and subsequent leasing with fishing communities and new entrants very likely being worse off (see for example the chapter “From fishing rights to financial derivatives” is this volume or Olson 2011; Sumaila 2010...... will examine five Danish fishing operations and discuss how they have reacted in different ways to the newly introduced system of transferable fishing concessions. By introducing TFCs as a solution to fleet overcapacity, the EU Commission will also be introducing a system where buying, selling and leasing...

  6. Fabricating photoelectrochemical aptasensor for selectively monitoring microcystin-LR residues in fish based on visible light-responsive BiOBr nanoflakes/N-doped graphene photoelectrode.

    Science.gov (United States)

    Du, Xiaojiao; Jiang, Ding; Dai, Liming; Zhou, Lei; Hao, Nan; Qian, Jing; Qiu, Baijing; Wang, Kun

    2016-07-15

    The presence of microcystins in fish has been augmenting the risk of toxicity to animal and human health. Herein, a selective and sensitive method for detecting microcystin-LR (MC-LR) in fish samples by integrating the photoelectrochemical (PEC) technique and the specific recognition ability of aptamer was developed. Specifically, as an efficient PEC transducer, the BiOBr nanoflakes/N-doped graphene p-n heterojunction electrode was utilized as the aptamer immobilization platform via the π-π stacking interaction, which would be a biosensor enabling the convenient and exquisite PEC analysis. Subsequently, the PEC response of constructed aptasensor was specific binding to MC-LR. Other isoforms did not interfere with the detection process, and thus, it could be applied for the highly selective determination of MC-LR level. Under the optimized condition, the PEC signal versus the logarithm of the MC-LR concentration was in good linear relationship ranging from 0.1pM to 100nM with detection limit about 0.03pM. The constructed method was employed to analyze fish samples collected from the local supermarket. The overall analytical recovery of MC-LR in the fish matrices ranged from 97.8 to 101.6%, with relative standard deviation (RSD) of 2.52-5.14%, implying it would have great potential in farm product analysis. PMID:26963789

  7. Heavy metals in commercial fish in New Jersey

    International Nuclear Information System (INIS)

    Levels of contaminants in fish are of particular interest because of the potential risk to humans who consume them. While attention has focused on self-caught fish, most of the fish eaten by the American public comes from commercial sources. We sampled 11 types of fish and shellfish obtained from supermarkets and specialty fish markets in New Jersey and analyzed them for arsenic, cadmium, chromium, lead, manganese, mercury, and selenium. We test the null hypothesis that metal levels do not vary among fish types, and we consider whether the levels of any metals could harm the fish themselves or their predators or pose a health risk for human consumers. There were significant interspecific differences for all metals, and no fish types had the highest levels of more than two metals. There were few significant correlations (Kendall tau) among metals for the three most numerous fish (yellowfin tuna, bluefish, and flounder), the correlations were generally low (below 0.40), and many correlations were negative. Only manganese and lead positively were correlated for tuna, bluefish, and flounder. The levels of most metals were below those known to cause adverse effects in the fish themselves. However, the levels of arsenic, lead, mercury, and selenium in some fish were in the range known to cause some sublethal effects in sensitive predatory birds and mammals and in some fish exceeded health-based standards. The greatest risk from different metals resided in different fish; the species of fish with the highest levels of a given metal sometimes exceeded the human health guidance or standards for that metal. Thus, the risk information given to the public (mainly about mercury) does not present a complete picture. The potential of harm from other metals suggests that people not only should eat smaller quantities of fish known to accumulate mercury but also should eat a diversity of fish to avoid consuming unhealthy quantities of other heavy metals. However, consumers should

  8. Fish barriers

    International Nuclear Information System (INIS)

    In addition to literature reviews laboratory experiments with both strobe light and different kinds of sound stimuli were carried out. In the experiments silver eel, brown trout, arctic char and salmon smolts were tested. The experiments showed that in darkness silver eel avoided strobe light with intensities between 0.4 and 8.7 lux with 80-90% avoidance in 8.7 lux. The avoidance reactions decreased when background light was raised to 9 lux. Brown trout did not show as strong avoidance reactions possibly due to aggressive behaviour between different individuals of brown trout. The avoidance reaction was however more pronounced in dim background lift with an intensity of 5 lux than in darkness. The experiments also showed that the avoidance reactions started within a few seconds after exposure to strobe light. The frequencies 6.0 and 15 Hz were more effective as triggers of avoidance reactions than were the frequencies 2.1 and 160 Hz. Arctic char did not show any avoidance reactions to strobe light. It was actually attracted to strobe light with the frequency 160 Hz in total darkness and indifferent in dim background light 10 lux. Experiments in running water also showed that salmon smolts could be diverted from an area exposed to strobe light with the frequency 15.0 Hz. The effect was more pronounced in darkness than in dim background light and also more pronounced when water current was 20 cm/s than when it was 40 or 60 cm/s. Experiments to test the avoidance reactions to sound was also performed. The evaluation of these results where however complicated by the fact that the fishes swam rapidly to and fro in the experimental chamber and thus by pure chance very frequently were close to the sound generator

  9. Get Real: Augmented Reality for the Classroom

    Science.gov (United States)

    Mitchell, Rebecca; DeBay, Dennis

    2012-01-01

    Kids love augmented reality (AR) simulations because they are like real-life video games. AR simulations allow students to learn content while collaborating face to face and interacting with a multimedia-enhanced version of the world around them. Although the technology may seem advanced, AR software makes it easy to develop content-based…

  10. Location-Based Learning through Augmented Reality

    Science.gov (United States)

    Chou, Te-Lien; Chanlin, Lih-Juan

    2014-01-01

    A context-aware and mixed-reality exploring tool cannot only effectively provide an information-rich environment to users, but also allows them to quickly utilize useful resources and enhance environment awareness. This study integrates Augmented Reality (AR) technology into smartphones to create a stimulating learning experience at a university…

  11. Design Principles for Augmented Reality Learning

    Science.gov (United States)

    Dunleavy, Matt

    2014-01-01

    Augmented reality is an emerging technology that utilizes mobile, context-aware devices (e.g., smartphones, tablets) that enable participants to interact with digital information embedded within the physical environment. This overview of design principles focuses on specific strategies that instructional designers can use to develop AR learning…

  12. CARE: Creating Augmented Reality in Education

    Science.gov (United States)

    Latif, Farzana

    2012-01-01

    This paper explores how Augmented Reality using mobile phones can enhance teaching and learning in education. It specifically examines its application in two cases, where it is identified that the agility of mobile devices and the ability to overlay context specific resources offers opportunities to enhance learning that would not otherwise exist.…

  13. A User's Perspective on Augmentative Communication.

    Science.gov (United States)

    Smith-Lewis, Marsha R.; Ford, Alison

    1987-01-01

    In extensive interviews, an augmentative communication user with cerebral palsy (age 25) reflected on the effectiveness of devices designed for her during her school career. Among emergent themes were a disproportionate emphasis on "device usage" over "speech usage," allowing professionals to dominate the decision-making process. (Author/JW)

  14. Augmented Reality in Sports: Today and Tomorrow

    Directory of Open Access Journals (Sweden)

    Zafer BOZYER

    2015-08-01

    Full Text Available The rapid change experienced in the field of Information Technologies makes the informati cs more tangible in daily life. Today, it became possible to encounter with the informatics applications almost all the disciplines. As a matter of course, many informatics applications are put into the practice regarding the sports discipline. Because of the condition that the power of information processing has increased and the studies on wearable technol ogies in addition to the expert system design, augmented reality (AR has become a topic which gains imp ortance in the field of sports. There are many studies that are conducted with the aim of increasing the efficiency of physical activities done in many sports branches, ensuring a more fair management of competitions and providing the opportunity for spectators to watch the competitions in a more comfortable and efficient way. In this study; the information about the current augmented reality practices th at are used in various sports branches has been given and the mobile and interactive augmented reality practices which are possible to be seen in future have been mentioned. In addition, there is an augmented reality practice which is designed with the aim of ensuring that the shoots of sports people who are interested in archery, are more stable and of ensuring that the trainings and exercises are more efficient by stating to the sports people whether he or she is in the right position for shoot which is c alled as T shape seen at the time of releasing the arrow.

  15. Intelligent Augmented Reality Training for Motherboard Assembly

    Science.gov (United States)

    Westerfield, Giles; Mitrovic, Antonija; Billinghurst, Mark

    2015-01-01

    We investigate the combination of Augmented Reality (AR) with Intelligent Tutoring Systems (ITS) to assist with training for manual assembly tasks. Our approach combines AR graphics with adaptive guidance from the ITS to provide a more effective learning experience. We have developed a modular software framework for intelligent AR training…

  16. Augmenting the ADDIE Paradigm for Instructional Design

    Science.gov (United States)

    Ni, Xiaopeng; Branch, Robert Maribe

    2008-01-01

    The authors discuss topics appropriate for augmenting the ADDIE paradigm for instructional design. The topics selected are based on data from a study of working professionals who successfully completed an instructional design and technology certificate program and who identified related topics that they regarded as beneficial. The participants…

  17. Personalized augmented reality for anatomy education.

    Science.gov (United States)

    Ma, Meng; Fallavollita, Pascal; Seelbach, Ina; Von Der Heide, Anna Maria; Euler, Ekkehard; Waschke, Jens; Navab, Nassir

    2016-05-01

    Anatomy education is a challenging but vital element in forming future medical professionals. In this work, a personalized and interactive augmented reality system is developed to facilitate education. This system behaves as a "magic mirror" which allows personalized in-situ visualization of anatomy on the user's body. Real-time volume visualization of a CT dataset creates the illusion that the user can look inside their body. The system comprises a RGB-D sensor as a real-time tracking device to detect the user moving in front of a display. In addition, the magic mirror system shows text information, medical images, and 3D models of organs that the user can interact with. Through the participation of 7 clinicians and 72 students, two user studies were designed to respectively assess the precision and acceptability of the magic mirror system for education. The results of the first study demonstrated that the average precision of the augmented reality overlay on the user body was 0.96 cm, while the results of the second study indicate 86.1% approval for the educational value of the magic mirror, and 91.7% approval for the augmented reality capability of displaying organs in three dimensions. The usefulness of this unique type of personalized augmented reality technology has been demonstrated in this paper. PMID:26646315

  18. Toward natural fiducials for augmented reality

    Science.gov (United States)

    Kitchin, Paul; Martinez, Kirk

    2005-03-01

    Augmented Reality (AR) requires a mapping between the camera(s) and the world, so that virtual objects can be correctly registered. Current AR applications either use pre-prepared fiducial markers or specialist equipment or impose significant constraints on lighting and background. Each of these approaches has significant drawbacks. Fiducial markers are susceptible to loss or damage, can be awkward to work with and may require significant effort to prepare an area for Augmented interaction. Use of such markers may also present an imposition to non-augmented observers, especially in environments such as museums or historical landmarks. Specialist equipment is expensive and not universally available. Lighting and background constraints are often impractical for real-world applications. This paper presents initial results in using the palm of the hand as a pseudo-fiducial marker in a natural real-world environment, through colour, feature and edge analysis. The eventual aim of this research is to enable fiducial marker cards to be dispensed with entirely in some situations in order to allow more natural interaction in Augmented environments. Examples of this would be allowing users to "hold" virtual 3D objects in the palm of their hand or use gestures to interact with virtual objects.

  19. E-Learning: Between Augmentation and Disruption?

    Science.gov (United States)

    Heilesen, Simon B.; Josephsen, Jens

    2008-01-01

    Based on a framework for analysis combining diffusion theory, content layer analysis and sense making, this paper discusses the theme of "e-learning as augmentation or disruption" from the point of view of technological innovation. Two cases of on-campus blended learning at Roskilde University, Denmark, are introduced to illustrate the discussion.…

  20. Augmented reality for Android application development

    CERN Document Server

    Grubert, Jens

    2013-01-01

    A step-by-step tutorial-based guide aimed at giving you hands-on practical experience to develop AR applications for Android.Augmented Reality for Android Application Development is for Android mobile application developers who are familiar with Android Development Tools and deployment, JMonkeyEngine, and the Vuforia SDK.

  1. Temporal Coherence Strategies for Augmented Reality Labeling

    DEFF Research Database (Denmark)

    Madsen, Jacob Boesen; Tatzgern, Markus; Madsen, Claus B.;

    2016-01-01

    Temporal coherence of annotations is an important factor in augmented reality user interfaces and for information visualization. In this paper, we empirically evaluate four different techniques for annotation. Based on these findings, we follow up with subjective evaluations in a second experiment...

  2. Introduction to augmented and virtual reality

    Science.gov (United States)

    Caudell, Thomas P.

    1995-12-01

    This paper introduces the field of augmented reality as a prolog to the body of papers in the remainder of this session. I describe the use of head-mounted display technologies to improve the efficiency and quality of human workers in their performance of engineering design, manufacturing, construction, testing, and maintenance activities. This technology is used to `augment' the visual field of the wearer with information necessary in the performance of the current task. The enabling technology is head-up (see-through) display head sets (HUDsets) combined with head position sensing, real world registration systems, and database access software. A primary difference between virtual reality (VR) and `augmented reality' (AR) is in the complexity of the perceived graphical objects. In AR systems, only simple wire frames, template outlines, designators, and text is displayed. An immediate result of this difference is that augmented reality systems can be driven by standard and inexpensive microprocessors. Many research issues must be addressed before this technology can be widely used, including tracking and registration, human 3D perception and reasoning, and human task performance issues.

  3. Augmentation of board games using smartphones

    DEFF Research Database (Denmark)

    Kulsinskas, Arturas; Balan, Catalin; Egede Bukdahl, Nicholas;

    2015-01-01

    This paper contains details about research into the effect of digital augmentation on social presence in board games. A case study of the board game Tobago was performed during the project and a prototype application for smartphones was developed in order to compare the players’ social presence i...

  4. Free vascularised fibula in augmenting allograft

    International Nuclear Information System (INIS)

    Free vascularised fibula has been widely used for various reconstructive purposes. Fibula is the longest expendable source of cortical bone. It can be used to augment megalength allograft in limb salvage surgery. We are reporting two cases of segmental vascularised free fibula flap used to augment the allograft following wide resection of locally advanced limb tumours. Two cases of advanced skeletal malignancy were resected and reconstructed. A megalength allograft and a free vascularised segmental fibula flap were used in each case. The early outcome was excellent. There was no flap failure and both patients regained good limb mobility. Traditionally the treatment of locally advanced limb malignancy was amputation or desarticulation. Limb salvage surgery has spared patient from this mutilating procedures. The availability of endoprosthesis and allograft allowed extensive resection and subsequent reconstruction. The allograft, had significant associated complications such as infection, delayed union, fracture and resorption despite its advantages. Augmenting this allograft with a segmental vascularised free fibula flap will circumvent these potential complications. The allograft offers initial stability, strength and support while the vascularised fibula provide late stability. The segmental osteocutanceous fibula will hopefully induced accelerated osteogenesis. In out refinements of this technique we incorporated megalength allograft with multiple segmental cortical osteotomies of the free fibula flap. The early result of this new approach is very promising. Segmental osteocutaneous free vascularised fibula flap used in the augmentation of allograft potentially provide an attractive solution to minimize complications of megalength allograft in the limb salvage surgery

  5. Does erythropoietin augment noise induced hearing loss?

    DEFF Research Database (Denmark)

    Frederiksen, Birgitte Lidegaard; Cayé-Thomasen, Per; Lund, Søren Peter;

    2007-01-01

    in fact augment noise-induced hearing loss. This is contradictory to the beneficial effect of EPO reported by the vast majority of studies on stressed neural tissues. EPO administration may alter the blood flow dynamics of the cochlear vascular bed during or after noise exposure, by a potential...

  6. ARTree. Designing & evaluating handheld augmented reality art

    OpenAIRE

    Nordbø, Tone

    2011-01-01

    Augmented reality is a technology combining physical and virtual objects. This study aimes to explore the use of this technology in art. The prototype ARTree was developed through contributions from an artist, and consists of a physical tree and virtual objects representing the four seasons. A qualitative usability test was conducted where ...

  7. On Location Learning: Authentic Applied Science with Networked Augmented Realities

    Science.gov (United States)

    Rosenbaum, Eric; Klopfer, Eric; Perry, Judy

    2007-02-01

    The learning of science can be made more like the practice of science through authentic simulated experiences. We have created a networked handheld Augmented Reality environment that combines the authentic role-playing of Augmented Realities and the underlying models of Participatory Simulations. This game, known as Outbreak @ The Institute, is played across a university campus where players take on the roles of doctors, medical technicians, and public health experts to contain a disease outbreak. Players can interact with virtual characters and employ virtual diagnostic tests and medicines. They are challenged to identify the source and prevent the spread of an infectious disease that can spread among real and/or virtual characters according to an underlying model. In this paper, we report on data from three high school classes who played the game. We investigate students' perception of the authenticity of the game in terms of their personal embodiment in the game, their experience playing different roles, and their understanding of the dynamic model underlying the game.

  8. 3D photography in the objective analysis of volume augmentation including fat augmentation and dermal fillers.

    Science.gov (United States)

    Meier, Jason D; Glasgold, Robert A; Glasgold, Mark J

    2011-11-01

    The authors present quantitative and objective 3D data from their studies showing long-term results with facial volume augmentation. The first study analyzes fat grafting of the midface and the second study presents augmentation of the tear trough with hyaluronic filler. Surgeons using 3D quantitative analysis can learn the duration of results and the optimal amount to inject, as well as showing patients results that are not demonstrable with standard, 2D photography. PMID:22004863

  9. Motion in Augmented Reality Games: An Engine for Creating Plausible Physical Interactions in Augmented Reality Games

    OpenAIRE

    Brian Mac Namee; David Beaney; Qingqing Dong

    2010-01-01

    The next generation of Augmented Reality (AR) games will require real and virtual objects to coexist in motion in immersive game environments. This will require the illusion that real and virtual objects interact physically together in a plausible way. The Motion in Augmented Reality Games (MARG) engine described in this paper has been developed to allow these kinds of game environments. The paper describes the design and implementation of the MARG engine and presents two pr...

  10. DHA-Containing Oilseed: A Timely Solution for the Sustainability Issues Surrounding Fish Oil Sources of the Health-Benefitting Long-Chain Omega-3 Oils

    OpenAIRE

    Soressa M. Kitessa; Mahinda Abeywardena; Chakra Wijesundera; Nichols, Peter D.

    2014-01-01

    Benefits of long-chain (≥C20) omega-3 oils (LC omega-3 oils) for reduction of the risk of a range of disorders are well documented. The benefits result from eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA); optimal intake levels of these bioactive fatty acids for maintenance of normal health and prevention of diseases have been developed and adopted by national and international health agencies and science bodies. These developments have led to increased consumer demand for LC omega...

  11. The role of imaging in pediatric bladder augmentation

    Energy Technology Data Exchange (ETDEWEB)

    Breen, Micheal; Chow, Jeanne S. [Boston Children' s Hospital, Department of Radiology, Boston, MA (United States); Phelps, Andrew [UCSF Benioff Children' s Hospital San Francisco, Department of Radiology and Biomedical Imaging, San Francisco, CA (United States); Estrada, Carlos [Boston Children' s Hospital, Department of Urology, Boston, MA (United States)

    2015-09-15

    Bladder augmentation (also called augmentation cystoplasty) refers to a number of surgical methods that increase the capacity and compliance of the urinary bladder. Imaging has an important role in the postoperative evaluation of bladder augmentation. The most common augmentation procedures utilize enteric segments to augment the bladder. The various types of bladder augmentation have characteristic appearances on different imaging modalities. Spontaneous bladder perforation is a complication that is seen in both early and late post-operative periods and it is one of the most important complications for radiologists to be aware of as it is life-threatening. We review the indications for bladder augmentation in children, the surgical techniques employed, the normal postoperative appearances on imaging studies and the role of imaging complications of bladder augmentation including delayed spontaneous bladder rupture, which is life-threatening. (orig.)

  12. Microbiological Quality Assessment of Frozen Fish and Fish Processing Materials from Bangladesh.

    Science.gov (United States)

    Sanjee, Sohana Al; Karim, Md Ekramul

    2016-01-01

    The present study aims at the microbiological analysis of export oriented frozen fishes, namely, Jew fish, Tongue Sole fish, Cuttle fish, Ribbon fish, Queen fish, and fish processing water and ice from a view of public health safety and international trade. Microbiological analysis includes the determination of total viable aerobic count by standard plate count method and enumeration of total coliforms and fecal coliforms by most probable number method. The presence of specific fish pathogens such as Salmonella spp. and Vibrio cholerae were also investigated. The TVAC of all the samples was estimated below 5 × 10(5) cfu/g whereas the total coliforms and fecal coliforms count were found below 100 MPN/g and 10 MPN/g, respectively, which meet the acceptable limit specified by International Commission of Microbiological Specification for Food. The microbiological analysis of water and ice also complies with the specifications having TVAC < 20 cfu/mL, and total coliforms and fecal coliforms count were below the limit detection of the MPN method. Specific fish pathogens such as Salmonella sp. and V. cholerae were found absent in all the samples under the investigation. From this study, it can be concluded that the investigated frozen fishes were eligible for export purpose and also safe for human consumption. PMID:27019847

  13. Organotin intake through fish consumption in Finland

    Energy Technology Data Exchange (ETDEWEB)

    Airaksinen, Riikka, E-mail: Riikka.Airaksinen@thl.fi [National Institute for Health and Welfare, Department of Environmental Health, P.O. Box 95, FI-70701 Kuopio (Finland); Rantakokko, Panu; Turunen, Anu W.; Vartiainen, Terttu [National Institute for Health and Welfare, Department of Environmental Health, P.O. Box 95, FI-70701 Kuopio (Finland); Vuorinen, Pekka J.; Lappalainen, Antti; Vihervuori, Aune [Finnish Game and Fisheries Research Institute, Helsinki (Finland); Mannio, Jaakko [Finnish Environment Institute, Helsinki (Finland); Hallikainen, Anja [Finnish Food Safety Authority Evira, Helsinki (Finland)

    2010-08-15

    Background: Organotin compounds (OTCs) are a large class of synthetic chemicals with widely varying properties. Due to their potential adverse health effects, their use has been restricted in many countries. Humans are exposed to OTCs mostly through fish consumption. Objectives: The aim of this study was to describe OTC exposure through fish consumption and to assess the associated potential health risks in a Finnish population. Methods: An extensive sampling of Finnish domestic fish was carried out in the Baltic Sea and freshwater areas in 2005-2007. In addition, samples of imported seafood were collected in 2008. The chemical analysis was performed in an accredited testing laboratory during 2005-2008. Average daily intake of the sum of dibutyltin (DBT), tributyltin (TBT), triphenyltin (TPhT) and dioctyltin (DOT) ({Sigma}OTCs) for the Finnish population was calculated on the basis of the measured concentrations and fish consumption rates. Results: The average daily intake of {Sigma}OTCs through fish consumption was 3.2 ng/kg bw day{sup -1}, which is 1.3% from the Tolerable Daily Intake (TDI) of 250 ng/kg bw day{sup -1} set by the European Food Safety Authority. In total, domestic wild fish accounted for 61% of the {Sigma}OTC intake, while the intake through domestic farmed fish was 4.0% and the intake through imported fish was 35%. The most important species were domestic perch and imported salmon and rainbow trout. Conclusions: The Finnish consumers are not likely to exceed the threshold level for adverse health effects due to OTC intake through fish consumption.

  14. Organotin intake through fish consumption in Finland

    International Nuclear Information System (INIS)

    Background: Organotin compounds (OTCs) are a large class of synthetic chemicals with widely varying properties. Due to their potential adverse health effects, their use has been restricted in many countries. Humans are exposed to OTCs mostly through fish consumption. Objectives: The aim of this study was to describe OTC exposure through fish consumption and to assess the associated potential health risks in a Finnish population. Methods: An extensive sampling of Finnish domestic fish was carried out in the Baltic Sea and freshwater areas in 2005-2007. In addition, samples of imported seafood were collected in 2008. The chemical analysis was performed in an accredited testing laboratory during 2005-2008. Average daily intake of the sum of dibutyltin (DBT), tributyltin (TBT), triphenyltin (TPhT) and dioctyltin (DOT) (ΣOTCs) for the Finnish population was calculated on the basis of the measured concentrations and fish consumption rates. Results: The average daily intake of ΣOTCs through fish consumption was 3.2 ng/kg bw day-1, which is 1.3% from the Tolerable Daily Intake (TDI) of 250 ng/kg bw day-1 set by the European Food Safety Authority. In total, domestic wild fish accounted for 61% of the ΣOTC intake, while the intake through domestic farmed fish was 4.0% and the intake through imported fish was 35%. The most important species were domestic perch and imported salmon and rainbow trout. Conclusions: The Finnish consumers are not likely to exceed the threshold level for adverse health effects due to OTC intake through fish consumption.

  15. A Framework for Dynamically Adaptable Augmented Reality Systems

    OpenAIRE

    Reicher, Thomas

    2007-01-01

    In this dissertation I present a software framework for adaptable Augmented Reality systems in intelligent environments: the Distributed Wearable Augmented Reality Framework (DWARF). The framework is a reusable basis for the development of Augmented Reality applications and gives developers a system structure to customize existing or develop new components. Augmented Reality is a human-computer interaction paradigm offering users new possibilities to interact with their environment. By tracki...

  16. MERCURY EXPOSURE FROM FISH CONSUMPTION WITHIN THE JAPANESE AND KOREAN COMMUNITIES

    Science.gov (United States)

    Public health guidance pertaining to fish consumption requires that we be cognizant of the health concerns associated with eating contaminated fish and the nutritional benefits obtained from fish consumption. In doing so, a need exists for an improved understanding of the extent ...

  17. Augmented Reality and ARToolkit for Android: the First Steps

    Directory of Open Access Journals (Sweden)

    Demidova Liliya

    2016-01-01

    Full Text Available The paper describes the aspects of the augmented reality application development on the base of ARToolkit for Android. The steps consistently used for the augmented reality application development have been considered. The simplest Java-based examples of augmented reality have been discussed.

  18. A Survey on Augmented Reality Challenges and Tracking

    OpenAIRE

    Ihsan Rabbi; Sehat Ullah

    2013-01-01

    This survey paper presents classification of different challenges and tracking techniques in the field of Augmented Reality. The challenges in augmented reality are categorized in performance challenges, alignment challenges, interaction challenges, mobility/portability challenges and visualization challenges. Augmented reality tracking techniques are mainly divided into sensor based tracking, vision based tracking and hybrid tracking. The sensor based tracking are further divided into optica...

  19. Trace elements in fish for consumption

    International Nuclear Information System (INIS)

    The presence of toxic elements in fish may constitute a health hazard for consumers in general as well as for people with specific consumption patterns. The levels of lead, cadmium, total mercury, total and inorganic arsenic and certain other, primarily essential, metals will be determined in a large number of fish species and originating from freshwater lakes, brackish water and marine waters. The results will be used to make a risk assessment of their impact on human food consumption. (abstract)

  20. Towards sustainable fish feed production using novel protein sources

    OpenAIRE

    Draganovic, V.

    2013-01-01

    The consumption of fish and fish-related products is increasing. Due to improved welfare and suggested health benefits, consumers are now eating more fish. In 2008, global fisheries supplied the world with about 142 million tons of fish, of which 115 million tons was used as human food, which is an all-time high (FAO, 2010. The State of World Fisheries and Aquaculture. FAO, Rome, Italy). Fish for consumption can be harvested directly from the wild (capture fisheries), but a growing proportion...

  1. Crude Oil Spills and Health

    Science.gov (United States)

    ... and Health Text size: s m l xl Crude Oil Spills and Health Overviews Health Information Coping with Disasters ... U.S. Fish and Wildlife Service Return to top Oil Spills and Wildlife Environmental Quality: Oil Spill Preparation and ...

  2. Histamine (Scombroid) Fish Poisoning: a Comprehensive Review.

    Science.gov (United States)

    Feng, Charles; Teuber, Suzanne; Gershwin, M Eric

    2016-02-01

    Histamine fish poisoning, also known as scombroid poisoning, is the most common cause of ichythyotoxicosis worldwide and results from the ingestion of histamine-contaminated fish in the Scombroidae and Scomberesocidae families, including mackerel, bonito, albacore, and skipjack. This disease was first described in 1799 in Britain and re-emerged in the medical literature in the 1950s when outbreaks were reported in Japan. The symptoms associated with histamine fish poisoning are similar to that of an allergic reaction. In fact, such histamine-induced reactions are often misdiagnosed as IgE-mediated fish allergy. Indeed, histamine fish poisoning is still an underrecognized disease. In this review, we discuss the epidemiology, pathophysiology, evaluation, and treatment of scombroid disease. Because more than 80% of fish consumed in the USA is now imported from other countries, the disease is intimately linked with the global fish trade (National Marine Fisheries Service, 2012). Preventing future scombroid outbreaks will require that fishermen, public health officials, restaurant workers, and medical professionals work together to devise international safety standards and increase awareness of the disease. The implications of scombroid poisoning go far beyond that of fish and have broader implications for the important issues of food safety. PMID:25876709

  3. FISH CONSUMPTION, METHYLMERCURY, AND HUMAN HEART DISEASE.

    Energy Technology Data Exchange (ETDEWEB)

    LIPFERT, F.W.; SULLIVAN, T.M.

    2005-09-21

    Environmental mercury continues to be of concern to public health advocates, both in the U.S. and abroad, and new research continues to be published. A recent analysis of potential health benefits of reduced mercury emissions has opened a new area of public health concern: adverse effects on the cardiovascular system, which could account for the bulk of the potential economic benefits. The authors were careful to include caveats about the uncertainties of such impacts, but they cited only a fraction of the applicable health effects literature. That literature includes studies of the potentially harmful ingredient (methylmercury, MeHg) in fish, as well as of a beneficial ingredient, omega-3 fatty acids or ''fish oils''. The U.S. Food and Drug Administration (FDA) recently certified that some of these fat compounds that are primarily found in fish ''may be beneficial in reducing coronary heart disease''. This paper briefly summarizes and categorizes the extensive literature on both adverse and beneficial links between fish consumption and cardiovascular health, which are typically based on studies of selected groups of individuals (cohorts). Such studies tend to comprise the ''gold standard'' of epidemiology, but cohorts tend to exhibit a great deal of variability, in part because of the limited numbers of individuals involved and in part because of interactions with other dietary and lifestyle considerations. Note that eating fish will involve exposure to both the beneficial effects of fatty acids and the potentially harmful effects of contaminants like Hg or PCBs, all of which depend on the type of fish but tend to be correlated within a population. As a group, the cohort studies show that eating fish tends to reduce mortality, especially due to heart disease, for consumption rates up to about twice weekly, above which the benefits tend to level off. A Finnish cohort study showed increased mortality risks

  4. Geo-based systems in augmented reality

    International Nuclear Information System (INIS)

    Today's life is different to the one that existed not so many years ago. Our everyday life is constantly changing. The use of new technologies play major role in this change. Augmented Reality (AR) is looking to be the 8th mass market to evolve, following print, recordings, cinema, radio, TV, the Internet and mobile. In combination with geo-based technologies, augmented reality provides a completely new way of execution of the everyday activities. This paper presents the basic concepts and key characteristics of these two technologies. Also, the paper presents an example of a use of the technologies in an application meant for students for navigation through the campus of the Faculty. (Author)

  5. Camera Based Navigation System with Augmented Reality

    Directory of Open Access Journals (Sweden)

    M. Marcu

    2012-06-01

    Full Text Available Nowadays smart mobile devices have enough processing power, memory, storage and always connected wireless communication bandwidth that makes them available for any type of application. Augmented reality (AR proposes a new type of applications that tries to enhance the real world by superimposing or combining virtual objects or computer generated information with it. In this paper we present a camera based navigation system with augmented reality integration. The proposed system aims to the following: the user points the camera of the smartphone towards a point of interest, like a building or any other place, and the application searches for relevant information about that specific place and superimposes the data over the video feed on the display. When the user moves the camera away, changing its orientation, the data changes as well, in real-time, with the proper information about the place that is now in the camera view.

  6. Interactive learning environments in augmented reality technology

    Directory of Open Access Journals (Sweden)

    Rafał Wojciechowski

    2010-01-01

    Full Text Available In this paper, the problem of creation of learning environments based on augmented reality (AR is considered. The concept of AR is presented as a tool for safe and cheap experimental learning. In AR learning environments students may acquire knowledge by personally carrying out experiments on virtual objects by manipulating real objects located in real environments. In the paper, a new approach to creation of interactive educational scenarios, called Augmented Reality Interactive Scenario Modeling (ARISM, is mentioned. In this approach, the process of building learning environments is divided into three stages, each of them performed by users with different technical and domain knowledge. The ARISM approach enables teachers who are not computer science experts to create AR learning environments adapted to the needs of their students.

  7. Detonation wave augmentation of gas turbines

    Science.gov (United States)

    Wortman, A.

    1984-01-01

    The results of a feasibility study that examined the effects of using detonation waves to augment the performance of gas turbines are reported. The central ideas were to reduce compressor requirements and to maintain high performance in jet engines. Gasdynamic equations were used to model the flows associated with shock waves generated by the detonation of fuel in detonator tubes. Shock wave attenuation to the level of Mach waves was found possible, thus eliminating interference with the compressor and the necessity of valves and seals. A preliminary parametric study of the performance of a compressor working at a 4:1 ratio in a conceptual design of a detonation wave augmented jet engine in subsonic flight indicated a clear superiority over conventional designs in terms of fuel efficiency and thrust.

  8. Augmentation Mammaplasty Using Implants: A Review

    OpenAIRE

    Susumu Takayanagi

    2012-01-01

    One of the techniques for augmentation mammaplasty is the procedure using implants. Even though this technique has been used for many years, there are still several controversial issues to be discussed and overcome for patient safety. In this review article, capsular contracture, leak or rupture of the implants, possible systemic disease, relation with breast cancer, and recent problems with Poly Implant Prothese implants are described and discussed.

  9. Augmentation Mammaplasty Using Implants: A Review

    Directory of Open Access Journals (Sweden)

    Susumu Takayanagi

    2012-09-01

    Full Text Available One of the techniques for augmentation mammaplasty is the procedure using implants. Eventhough this technique has been used for many years, there are still several controversial issuesto be discussed and overcome for patient safety. In this review article, capsular contracture,leak or rupture of the implants, possible systemic disease, relation with breast cancer, andrecent problems with Poly Implant Prothese implants are described and discussed.

  10. Simultaneous Breast Augmentation with Periareolar Mastopexy

    OpenAIRE

    Davison, Steven P.; Spear, Scott L.

    2004-01-01

    Augmentation mammaplasty is frequently used to fill out the soft tissue envelope of the breast. This is most successful with minimal skin laxity or when there is no need for significant nipple movement. The addition of a periareolar mastopexy can reduce the skin envelope; however, its value is limited to those with no more than mild second-degree ptosis. Although this is a valuable technique, the risks involved with the operation are additive, and, accordingly, patient selection and surgical ...

  11. Management of a Common Breast Augmentation Complication

    OpenAIRE

    Bresnick, Stephen D.

    2015-01-01

    Abstract The double-bubble deformity is one of the most common problems in breast augmentation, with or without mastopexy. Classically, open techniques have been used to treat this deformity, including elevation and reconstruction of the inframammary crease or parenchymal scoring. In this study, the author reports experience with a simple, closed technique of serial fat grafting procedures to treat the double-bubble deformity. Twenty-eight patients with double-bubble deformities were retrospe...

  12. Soft tissue augmentation in dermatology - 2009 update

    Directory of Open Access Journals (Sweden)

    Michael H Gold

    2010-01-01

    Full Text Available The number of products available to dermatologists for soft tissue augmentation has grown significantly over the past several years in the US. This manuscript will review the various hyaluronic acid fillers and other Food and Drug Administration -approved products we are utilizing for our patients in the rejuvenation process. It is hoped that through this article clinicians will feel more comfortable using these products in their everyday practice of dermatology.

  13. Multimodal augmented reality to enhance human communication

    OpenAIRE

    Mertes, Christian

    2008-01-01

    Humans naturally use an impressive variety of ways to communicate. In this work, we will investigate the possibilities of complementing these natural communication channels with artificial ones. For this, augmented reality is used as a technique to add synthetic visual and auditory stimuli to people's perception. A system for the mutual display of the gaze direction of two interactants is presented and its acceptance is shown through a study. Finally, future possibilities of promoting this no...

  14. Breast Augmentation With Autologous Fat Injection

    OpenAIRE

    Li, Fa-Cheng; Chen, Bing; Cheng, Lin

    2014-01-01

    Introduction Autologous fat transplantation has attracted great interest in breast augmentation for cosmetic purpose. In the present study, we reported our experience in fat grafting in breast in 105 cases, and some detailed procedure concerning efficacy and safety of grafting was evaluated. Methods Fat was harvested using 20-mL syringe attached to a 3-hole blunt cannula in a diameter not beyond 3 mm. After washing with cool normal saline to remove blood, the fat was managed with open method ...

  15. Augmented reality visualization for thoracoscopic spine surgery

    Science.gov (United States)

    Sauer, Frank; Vogt, Sebastian; Khamene, Ali; Heining, Sandro; Euler, Ekkehard; Schneberger, Marc; Zuerl, Konrad; Mutschler, Wolf

    2006-03-01

    We are developing an augmented reality (AR) image guidance system in which information derived from medical images is overlaid onto a video view of the patient. The centerpiece of the system is a head-mounted display custom fitted with two miniature color video cameras that capture the stereo view of the scene. Medical graphics is overlaid onto the video view and appears firmly anchored in the scene, without perceivable time lag or jitter. We have been testing the system for different clinical applications. In this paper we discuss minimally invasive thoracoscopic spine surgery as a promising new orthopedic application. In the standard approach, the thoracoscope - a rigid endoscope - provides visual feedback for the minimally invasive procedure of removing a damaged disc and fusing the two neighboring vertebrae. The navigation challenges are twofold. From a global perspective, the correct vertebrae on the spine have to be located with the inserted instruments. From a local perspective, the actual spine procedure has to be performed precisely. Visual feedback from the thoracoscope provides only limited support for both of these tasks. In the augmented reality approach, we give the surgeon additional anatomical context for the navigation. Before the surgery, we derive a model of the patient's anatomy from a CT scan, and during surgery we track the location of the surgical instruments in relation to patient and model. With this information, we can help the surgeon in both the global and local navigation, providing a global map and 3D information beyond the local 2D view of the thoracoscope. Augmented reality visualization is a particularly intuitive method of displaying this information to the surgeon. To adapt our augmented reality system to this application, we had to add an external optical tracking system, which works now in combination with our head-mounted tracking camera. The surgeon's feedback to the initial phantom experiments is very positive.

  16. Do transcriptional enhancers also augment DNA replication?

    OpenAIRE

    O'Connor, D T; Subramani, S

    1988-01-01

    Enhancers are DNA elements that augment transcription in cis, independent of distance and orientation. Evidence such as hormone dependent neoplastic cell growth and the stimulation of viral replication by sequences present in enhancers suggests that enhancers may also directly affect DNA replication. We tested this hypothesis in recombinant plasmids by asking whether sequences that stimulated DNA replication shared the properties of transcriptional enhancers. The homologous simian virus 40 (S...

  17. Alveolar ridge augmentation by osteoinduction in rats

    DEFF Research Database (Denmark)

    Pinholt, E M; Bang, G; Haanaes, H R

    1990-01-01

    The purpose of this study was to evaluate bone substitutes for alveolar ridge augmentation by osteoinduction. Allogenic, demineralized, and lyophilized dentin and bone was tested for osteoinductive properties in order to establish an experimental model for further studies. Implantations were...... performed subperiosteally on the premaxilla and heterotopically in the abdominal muscles of rats. Light microscopic evaluations revealed that all allogenic, demineralized, and lyophilized dentin and bone implants induced new bone formation. No inflammatory or foreign body reactions were observed....

  18. Augment-and-Conquer Negative Binomial Processes

    OpenAIRE

    Zhou, Mingyuan; Carin, Lawrence

    2012-01-01

    By developing data augmentation methods unique to the negative binomial (NB) distribution, we unite seemingly disjoint count and mixture models under the NB process framework. We develop fundamental properties of the models and derive efficient Gibbs sampling inference. We show that the gamma-NB process can be reduced to the hierarchical Dirichlet process with normalization, highlighting its unique theoretical, structural and computational advantages. A variety of NB processes with distinct s...

  19. Developing augmented reality solutions through user involvement

    OpenAIRE

    Siltanen, Sanni

    2015-01-01

    Augmented reality (AR) technology merges digital information into the real world. It is an effective visualization method; AR enhances user's spatial perception skills and helps to understand spatial dimensions and relationships. It is beneficial for many professional application areas such as assembly, maintenance and repair. AR visualization helps to concretize building and construction projects and interior design plans – also for non-technically oriented people, who might otherwise have d...

  20. Autologous Fat Injection for Augmented Mammoplasty

    International Nuclear Information System (INIS)

    Autologous fat injection is one of the methods utilized for augmented mammoplasty methods. In this surgical procedure, the fat for transfer is obtained from the donor site of the patient's own body by liposuction and the fat is then injected into the breast. We report here cases of three patients who underwent autologous fat injection. Two of the patients had palpable masses that were present after surgery. The serial imaging findings and surgical method of autologous fat transfer are demonstrated

  1. Autologous Fat Injection for Augmented Mammoplasty

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Eul Sik; Seo, Bo Kyoung; Yi, Ann; Cho, Kyu Ran [Korea University Ansan Hospital, Ansan (Korea, Republic of)

    2008-12-15

    Autologous fat injection is one of the methods utilized for augmented mammoplasty methods. In this surgical procedure, the fat for transfer is obtained from the donor site of the patient's own body by liposuction and the fat is then injected into the breast. We report here cases of three patients who underwent autologous fat injection. Two of the patients had palpable masses that were present after surgery. The serial imaging findings and surgical method of autologous fat transfer are demonstrated

  2. Augmented Reality For Museum Artifacts Visualization

    OpenAIRE

    Edmund Ng Giap Weng; Behrang Parhizkar; Lina Chai Hsiao Ping; Arash Habibi Lashkari

    2011-01-01

    Recently, advances in computer graphics and interactive techniques have increased the visual quality and field of Augmented Reality (AR) applications. Research into indoor exhibition systems associated with the use of AR technologies is getting general. This project describes an AR based system for overlaying computer generated information on the real world where museum artifacts are digitized in this project and superimposed in real scene. Furthermore, this project also presents the informat...

  3. The educational possibilities of Augmented Reality

    OpenAIRE

    Julio Cabero Almenara; Julio Barroso Osuna

    2016-01-01

    A large number of emergent technologies have been acquiring a strong impulse in recent years. One of these emergent technologies is Augmented Reality (RA), which will surely have a high level of penetration into all our educational centers, including universities, in the next 3 to 5 years, as a number of different reports have already highlighted. The present paper shows various elements which, in our opinion, play an essential role when it comes to the incorporation of ...

  4. Secondary Breast Augmentation: Managing Each Case

    OpenAIRE

    Benito, Javier; Sanchez, Kyrenia

    2010-01-01

    Breast augmentation is one of the most regularly performed interventions requiring reoperation in aesthetic surgery. For this reason, it involves a greater chance for complications. In this report, the authors aim to provide young plastic surgeons with guidelines based on their experience for responding to each of these complications, to explain the causes and ways of avoiding them, and to show how they can be treated when they occur.

  5. Enhancing human cooperation with multimodal augmented reality

    OpenAIRE

    Mertes, Christian; Dierker, Angelika; Hermann, Thomas; Hanheide, Marc; Sagerer, Gerhard

    2009-01-01

    Humans naturally use an impressive variety of ways to communicate. In this work, we investigate the possibilities of complementing these natural communication channels with artificial ones. For this, augmented reality is used as a technique to add synthetic visual and auditory stimuli to people's perception. A system for the mutual display of the gaze direction of two interactants is presented and its acceptance is shown through a study. Finally, future possibilities of promoting this novel c...

  6. Designing Augmented Reality for the Classroom

    OpenAIRE

    Cuendet, Sébastien; Bonnard, Quentin; Do-Lenh, Son; Dillenbourg, Pierre

    2012-01-01

    Augmented reality (AR) has recently received a lot of attention in education. Multiple AR systems for learning have been developed and tested through empirical studies often conducted in lab settings. While lab studies can be insightful, they leave out the complexity of a classroom environment. We developed three AR learning environments that have been used in genuine classroom contexts, some of them being now part of classroom regular practices. These systems and the learning activities they...

  7. Augmented Reality for Human-Robot Collaboration

    OpenAIRE

    Scott A. Green; Billinghurst, Mark; Chen, Xiaoqi; Chase, J Geoffrey

    2007-01-01

    This chapter began by establishing a need for human-robot collaboration. Human-human communication was discussed; a model for human-human collaboration created and this model was used as a reference model for human-robot collaboration. The state of humanrobot interaction was reviewed and how this interaction fits into the model of human-robot collaboration was explored. Augmented Reality technology was introduced, reviewed and how AR could be used to enhance human-robot collaboration was expl...

  8. Ceramic augmentation of the lower jaw.

    Science.gov (United States)

    Bunte, M; Strunz, V

    1977-11-01

    Atrophy of the lower jaw is essentially a manifestation of vertical bone resorption and must be treated in a compensatory manner. Animal experiments have shown the value of the bioactive glass ceramic Ceravital as a bone replacement material. After box-shaped or step-shaped osteotomies, we perform interpositional plastic operations with glass ceramic in order to augment the atrophied human lower jaw. Results, advantages and dangers of the method are shown in 12 patients. PMID:271190

  9. Emergent Gravity from an Augmented Variational Principle

    CERN Document Server

    Tuveri, Matteo; Ferraris, Marco

    2016-01-01

    A direct and non-trivial link between Padmanabhan's entropy used in emergent gravity and standard GR action is established. To do that, Augmented Variational Principles (AVP) will be used. We shall discuss how this link accounts for the details of the variation of Padmanabhan's action based on gravitational entropy. It will also clarify the role of the background metric and its non-dynamical role.

  10. Medical imaging and augmented reality. Proceedings

    International Nuclear Information System (INIS)

    This book constitutes the refereed proceedings of the Third International Workshop on Medical Imaging and Augmented Reality, MIAR 2006, held in Shanghai, China, in August 2006. The 45 revised full papers presented together with 4 invited papers were carefully reviewed and selected from 87 submissions. The papers are organized in topical sections on shape modeling and morphometry, patient specific modeling and quantification, surgical simulation and skills assessment, surgical guidance and navigation, image registration, PET image reconstruction, and image segmentation. (orig.)

  11. Silicone-induced Granuloma After Buttock Augmentation.

    Science.gov (United States)

    Singh, Mansher; Solomon, Isaac H; Calderwood, Michael S; Talbot, Simon G

    2016-02-01

    Liquid silicone is inexpensive, minimally antigenic, and likely noncarcinogenic. Its simplicity of use has made it popular as a soft-tissue filler in some parts of the world for patients seeking rapid soft-tissue augmentation of the face, breast, and buttocks. However, multiple reports describe the complications of silicone injections such as cellulitis, abscess, ulceration, and foreign body migration. We present an unusual complication of granulomatous reaction secondary to silicone injection for buttock augmentation, with a literature review of this entity and treatment options. Our patient was a 54-year-old woman who underwent bilateral buttock augmentation in the Dominican Republic using percutaneous injection of liquid silicone. She presented to our facility 1 year after this procedure with pain and inflammation of both buttocks. She was diagnosed with multiple silicone granulomas. Her symptoms completely resolved with a 3-week course of minocycline. Granulomatous reactions to silicone may occur months to years after the silicone injection. The incidence of such complications may be increased when nonmedical-grade silicone is used, and hence, when these procedures are performed in developing countries. Tetracycline antibiotics, especially minocycline, may be used to achieve sustained remission. PMID:27014553

  12. Silicone-induced Granuloma After Buttock Augmentation

    Science.gov (United States)

    Singh, Mansher; Solomon, Isaac H.; Calderwood, Michael S.

    2016-01-01

    Summary: Liquid silicone is inexpensive, minimally antigenic, and likely noncarcinogenic. Its simplicity of use has made it popular as a soft-tissue filler in some parts of the world for patients seeking rapid soft-tissue augmentation of the face, breast, and buttocks. However, multiple reports describe the complications of silicone injections such as cellulitis, abscess, ulceration, and foreign body migration. We present an unusual complication of granulomatous reaction secondary to silicone injection for buttock augmentation, with a literature review of this entity and treatment options. Our patient was a 54-year-old woman who underwent bilateral buttock augmentation in the Dominican Republic using percutaneous injection of liquid silicone. She presented to our facility 1 year after this procedure with pain and inflammation of both buttocks. She was diagnosed with multiple silicone granulomas. Her symptoms completely resolved with a 3-week course of minocycline. Granulomatous reactions to silicone may occur months to years after the silicone injection. The incidence of such complications may be increased when nonmedical-grade silicone is used, and hence, when these procedures are performed in developing countries. Tetracycline antibiotics, especially minocycline, may be used to achieve sustained remission. PMID:27014553

  13. Ridge augmentation in an organ transplant patient.

    Science.gov (United States)

    Dalla Torre, D; Burtscher, D

    2016-05-01

    With the continuing progress in medicine, the number of successful organ transplantations has continued to increase, a fact that also concerns dentists and implantologists. Implantology after organ transplantation remains controversial due to the patient's immunocompromised situation and the corresponding risk of infection. Only a few studies on this topic have been reported, with all of them showing the dental implant success rates in transplant patients to be similar to those in healthy subjects. However, immunosuppression has been identified as a contraindication to bone augmentation. Consequently, there is still a lack of knowledge regarding pre-implantology bone grafting procedures. The following case report describes the use of ridge augmentation and extended bilateral sinus lift procedures in a liver transplant patient. The patient was treated with an implant-supported fixed prosthesis in the upper jaw and was followed up for a total of 28 months after implant insertion. According to the findings presented, pre-implantology augmentation procedures may be performed successfully in immunosuppressed organ transplant patients. Stable peri-implant conditions were shown over a period of more than 2 years. Nevertheless, further investigations are needed to define a safe treatment protocol for these high-risk patients. PMID:26711250

  14. Augmented spaces, a look beyond advertising

    Directory of Open Access Journals (Sweden)

    Oana Andreea Căplescu

    2014-03-01

    Full Text Available From billboards to urban screens and now to media facades, the augmentation of our cities has expanded, changing social behaviours and public space consumption. Smart buildings are being developed and, much like the smartphones, these hybrids are not only in sci-fi movies anymore. One of the main promoters of media facades and media architecture has been the advertising industry. But artists and designers showed the potential of different approaches, experimenting with digitally augmented spaces both indoors and outdoors. Going beyond the commercial aspect of being an advertising and branding tool, these hybrids offer a variety of uses. Questions of how and where we use them and how they can improve our life quality are discussed here emphasizing that we developed a media behaviour, adjusting our relation to the physical and information environments. I examine some of the most notable experiments outside of the advertising sphere, offering a base for future development of augmented spaces and opening the discussion over the language of new media architecture.

  15. IMPLEMENTATION OF AERONAUTICAL LOCAL SATELLITE AUGMENTATION SYSTEM

    Directory of Open Access Journals (Sweden)

    Stojce Ilcev

    2011-03-01

    Full Text Available Abstract. This paper introduces development and implementation of new Local Satellite AugmentationSystem as an integration component of the Regional Satellite Augmentation System (RSAS employingcurrent and new Satellite Communications, Navigation and Surveillance (CNS for improvement of the AirTraffic Control (ATC and Air Traffic Management (ATM and for enhancement safety systems includingtransport security and control of flights in all stages, airport approaching, landing, departures and allmovements over airport surface areas. The current first generation of the Global Navigation Satellite SystemGNSS-1 applications are represented by fundamental military solutions for Position, Velocity and Time ofthe satellite navigation and determination systems such as the US GPS and Russian GLONASS (Former-USSR requirements, respectively. The establishment of Aeronautical CNS is also discussed as a part ofGlobal Satellite Augmentation Systems of GPS and GLONASS systems integrated with existing and futureRSAS and LSAS in airports areas. Specific influence and factors related to the Comparison of the Currentand New Aeronautical CNS System including the Integration of RSAS and GNSS solutions are discussedand packet of facts is determined to maximize the new satellite Automatic Dependent Surveillance System(ADSS and Special Effects of the RSAS Networks. The possible future integration of RSAS and GNSS andthe common proposal of the satellite Surface Movement Guidance and Control are presented in thechangeless ways as of importance for future enfacements of ATC and ATM for any hypothetical airportinfrastructure.Keywords: ADSS, ATC, ATM, CNS, GSAS, LRAS, RSAS, SMGC, Special Effects of RSAS.

  16. Service connectivity architecture for mobile augmented reality

    Science.gov (United States)

    Turunen, Tuukka; Pyssysalo, Tino; Roening, Juha

    2001-06-01

    Mobile augmented reality can be utilized in a number of different services, and it provides a lot of added value compared to the interfaces used in mobile multimedia today. Intelligent service connectivity architecture is needed for the emerging commercial mobile augmented reality services, to guarantee mobility and interoperability on a global scale. Some of the key responsibilities of this architecture are to find suitable service providers, to manage the connection with and utilization of such providers, and to allow smooth switching between them whenever the user moves out of the service area of the service provider she is currently connected to. We have studied the potential support technologies for such architectures and propose a way to create an intelligent service connectivity architecture based on current and upcoming wireless networks, an Internet backbone, and mechanisms to manage service connectivity in the upper layers of the protocol stack. In this paper, we explain the key issues of service connectivity, describe the properties of our architecture, and analyze the functionality of an example system. Based on these, we consider our proposition a good solution to the quest for global interoperability in mobile augmented reality services.

  17. Poisoning - fish and shellfish

    Science.gov (United States)

    Fish poisoning; Dinoflagellate poisoning; Seafood contamination; Paralytic shellfish poisoning; Ciguatera poisoning ... algae and algae-like organisms called dinoflagellates. Small fish that eat the algae become contaminated. If larger ...

  18. Scorpion fish sting

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/002849.htm Scorpion fish sting To use the sharing features on this page, please enable JavaScript. Scorpion fish are members of the family Scorpaenidae, which includes ...

  19. Compatibility Determination : Recreational Fishing

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — It is determined in this document that recreational fishing of bass and brim on St. Vincent National Wildlife Refuge is consistent with Refuge Objectives. The...

  20. Umatilla - Rough Fish Eradication

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In order to enhance environmental conditions in the McCormack Slough on Umatilla NWR, the population of rough fish, including common carp (Cyprinus carpio) and...

  1. Alaskan sport fishing waters

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — As a guide to newcomers and visitors, fishery biologists have compiled a list of some of the well-known fishing waters in Alaska. The list is merely a starting...

  2. Approximate Augmented Lagrangian Functions and Nonlinear Semidefinite Programs

    Institute of Scientific and Technical Information of China (English)

    X. X. HUANG; K. L. TEO; X. Q. YANG

    2006-01-01

    In this paper, an approximate augmented Lagrangian function for nonlinear semidefinite programs is introduced. Some basic properties of the approximate augmented Lagrange function such as monotonicity and convexity are discussed. Necessary and sufficient conditions for approximate strong duality results are derived. Conditions for an approximate exact penalty representation in the framework of augmented Lagrangian are given. Under certain conditions, it is shown that any limit point of a sequence of stationary points of approximate augmented Lagrangian problems is a KKT point of the original semidefinite program and that a sequence of optimal solutions to augmented Lagrangian problems converges to a solution of the original semidefinite program.

  3. 49 CFR 173.218 - Fish meal or fish scrap.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Fish meal or fish scrap. 173.218 Section 173.218... Fish meal or fish scrap. (a) Except as provided in Column (7) of the HMT in § 172.101 of this subchapter, fish meal or fish scrap, containing at least 6%, but not more than 12% water, is authorized...

  4. High Doses of Fish Oil Might Help Healing After Heart Attack

    Science.gov (United States)

    ... Doses of Fish Oil Might Help Healing After Heart Attack Study found improved heart function, less scarring To ... 2, 2016 MONDAY, Aug. 1, 2016 (HealthDay News) -- Heart attack patients who took high doses of fish oil ...

  5. Chemical analysis of sediments and fish from the Mahoning River, Lawrence County, Pennsylvania

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In July, 1988, the Ohio Department of Health issued a swimming, wading and fish consumption advisory for the Mahoning River between Warren, Ohio and the...

  6. Malheur NWR: Initial Survey Instructions for Fish Assemblage and Carp Presence/Absence

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — An understanding of the diversity of fishes, their location and abundance in refuge ecosystems is a vital foundation for protecting and restoring the aquatic health...

  7. Ciguatera fish poisoning

    OpenAIRE

    J. Crump; McLay, C.; Chambers, S.

    1999-01-01

    Ciguatera fish poisoning is one of a variety of non-bacterial forms of human seafood poisoning. Consuming large predatory fish from tropical reef ecosystems may be hazardous. We describe a case that is typical of the disease, and illustrates the persistence of neurological symptoms that occur in some patients.


Keywords: ciguatera fish poisoning; ichthyosarcotoxaemia; poisoning; biotoxins

  8. Mercury in fish and fish-eating birds near sites of industrial contamination in Canada

    Energy Technology Data Exchange (ETDEWEB)

    Fimreite, N.; Holsworth, W.N.; Keith, J.A.; Pearce, P.A.; Gruchy, I.M.

    Concentrations of mercury were determined in fish muscle, livers and eggs of fish-eating birds, and bivalve molluscs. Most of the material was collected near sites of industrial contamination: a mercury mine, chlor-alkali plants and pulp mills known to use or have used mercury. Most sites showed substantial mercury contamination, especially downstream from the above sources. Mercury levels exceeding 0.5 ppm were found in practically all samples of freshwater fish. Individual walleye (Lake St. Clair), pumpkinseed (St. Clair River), and lake trout (Pinchi Lake) contained concentrations up to 5.01, 7.09, and 10.50 ppm of mercury respectively. Lower levels were found in marine fishes from coastal waters. A positive correlation was found between body weight and mercury concentration in most fish samples, and also between the trophic feeding level and mercury concentration in both fish and fish-eating birds. The highest mercury level in the livers of fish-eating birds was 17.40 ppm (Red-necked Grebe). Four Common Tern eggs averaged 0.58 ppm and two Red-breasted Merganser eggs averaged 0.81 ppm. The mercury concentrations are discussed in terms of published data on hazard to human health and to reproduction in fish-eating birds. 36 references, 2 figures, 4 tables.

  9. Aquatic food security:insights into challenges and solutions from an analysis of interactions between fisheries, aquaculture, food safety, human health, fish and human welfare, economy and environment

    OpenAIRE

    Jennings, Simon; Stentiford, Grant D.; Leocadio, Ana M.; Jeffery, Keith R; Metcalfe, Julian D.; Katsiadaki, Ioanna; Auchterlonie, Neil A.; Mangi, Stephen C.; Pinnegar, John K.; Ellis, Tim; Peeler, Edmund J; Luisetti, Tiziana; Baker-Austin, Craig; Brown, Mary; Catchpole, Thomas L.

    2016-01-01

    Fisheries and aquaculture production, imports, exports and equitability of distribution determine the supply of aquatic food to people. Aquatic food security is achieved when a food supply is sufficient, safe, sustainable, shockproof and sound: sufficient, to meet needs and preferences of people; safe, to provide nutritional benefit while posing minimal health risks; sustainable, to provide food now and for future generations; shock-proof, to provide resilience to shocks in production systems...

  10. Phase II Water Rental Pilot Project: Snake River Resident Fish and Wildlife Resources and Management Recommendations.

    Energy Technology Data Exchange (ETDEWEB)

    Stovall, Stacey H.

    1994-08-01

    The Idaho Water Rental Pilot Project was implemented in 1991 as part of the Non-Treaty Storage Fish and Wildlife Agreement between Bonneville Power Administration and the Columbia Basin Fish and Wildlife Authority. The goal of the project is to quantify resident fish and wildlife impacts resulting from salmon flow augmentation releases made from the upper Snake River Basin. Phase I summarized existing resource information and provided management recommendations to protect and enhance resident fish and wildlife habitat resulting from storage releases for the I improvement of an adromous fish migration. Phase II includes the following: (1) a summary of recent biological, legal, and political developments within the basin as they relate to water management issues, (2) a biological appraisal of the Snake River between American Falls Reservoir and the city of Blackfoot to examine the effects of flow fluctuation on fish and wildlife habitat, and (3) a preliminary accounting of 1993--1994 flow augmentation releases out of the upper Snake, Boise, and Payette river systems. Phase III will include the development of a model in which annual flow requests and resident fish and wildlife suitability information are interfaced with habitat time series analysis to provide an estimate of resident fish and wildlife resources.

  11. Do Fish Resist?

    Directory of Open Access Journals (Sweden)

    Dinesh Joseph Wadiwel

    2016-03-01

    Full Text Available There have been a number of scientific studies on the question of whether fish feel pain. Some have suggested that some fish indeed do feel pain and that this has significant welfare implications (2003. Others have argued that fish do not have the brain development necessary to feel pain. In terms of number of animals killed, the slaughter of sea animals for human consumption significantly exceeds that of any land animals that we use for food, and sea animal slaughter practices frequently lack any basic welfare protections. If fish can be shown to feel pain—or more importantly, if humans can agree that fish feel pain—then this would place a significant question mark over many contemporary fishing practices.  This article substitutes the question 'Do Fish Feel Pain?' with an alternative: 'Do Fish Resist?' It explores the conceptual problems of understanding fish resistance, and the politics of epistemology that surrounds and seeks to develop a conceptual framework for understanding fish resistance to human capture by exploring the development of fishing technologies - the hook, the net and contemporary aquaculture.

  12. Repeated vertebral augmentation for new vertebral compression fractures of postvertebral augmentation patients: a nationwide cohort study

    OpenAIRE

    Liang CL; Wang HK; Syu FK; Wang KW; Lu K; Liliang PC

    2015-01-01

    Cheng-Loong Liang,1 Hao-Kwan Wang,1 Fei-Kai Syu,2 Kuo-Wei Wang,1 Kang Lu,1 Po-Chou Liliang1 1Department of Neurosurgery, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan; 2Department of Pharmacy, China Medical University Hospital, Taichung City, Taiwan Purpose: Postvertebral augmentation vertebral compression fractures are common; repeated vertebral augmentation is usually performed for prompt pain relief. This study aimed to evaluate the incidence and risk factors of repeat vertebr...

  13. HEAVY METALS CONTAMINATION IN FISH OF THE LIGURIAN SEA

    Directory of Open Access Journals (Sweden)

    M. Prearo

    2013-02-01

    Full Text Available Aim of this investigation was to evaluate heavy metals contamination (mercury, cadmium and lead in fish and shellfish from Ligurian Sea. 58 muscle samples (45 fish and 13 shellfish were collected and analyzed. 20 samples exceeded the maximum residue limits (MRLs set by regulation for mercury (16 fish and 4 shellfish samples, while only one fish sample was not consistent with the MRL for lead. Therefore, 35,8% of Ligurian fishing turned out to be not adequate and potentially harmful for consumers. In order to estimate the real risk for human health it is necessary to enforce this study, correlating the results with fish species and with the effective fish consumption.

  14. Southeast Alaska ESI: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains biological resource data for estuarine, benthic, and pelagic fish in Southeast Alaska. Vector polygons in this data set represent locations...

  15. American Samoa ESI: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for reef, pelagic, benthic, and estuarine fish species in American Samoa. Vector polygons in this data set...

  16. Fish Parasites: A Growing Concern During Pregnancy.

    Science.gov (United States)

    Villazanakretzer, Diana L; Napolitano, Peter G; Cummings, Kelly F; Magann, Everett F

    2016-04-01

    Intestinal parasitic worms affect more than 2 billion people worldwide according to the World Health Organization. Fish-borne parasitic infections are becoming more common with the increasing popularity of sushi, sashimi, Carpaccio, tartare, gefilte, and ceviche. The ingestion of these parasites can cause serve anemia, malabsorption, severe abdominal pain, nausea, vomiting, strong allergic reactions, and gastric ulcers. Knowledge about fish parasites and pregnancy is limited. A literature search on PubMed and Web of Science used the search terms "fish parasites" OR "diphyllobothrium" OR "anisakiasis" OR "pseudoterranova" OR ("food borne parasites" AND "fish") AND "pregnancy" OR "maternal" OR "fetus" OR "fetal" OR "newborn" OR "neonatal" OR "childbirth." No limit was put on the number of years searched. There were 281 publications identified. The abstracts of all of these publications were read. After exclusion of the articles that were not relevant to pregnancy, pregnancy outcome, and fish parasites, there were 24 articles that became the basis of this review. The pathophysiology, altered maternal immunity related to the infection, limited information about fish-borne parasitic infections and pregnancy, and treatments are discussed. The main impact of a fish-borne parasitic infection on pregnant women is anemia and altered immunity, which may increase the risk of a maternal infection. The primary fetal effects include intrauterine growth restriction and preterm delivery. PMID:27065071

  17. Does Mercury in Fish Come from the Air?

    OpenAIRE

    Knuffman, Nathan; Lutter, Randall

    2000-01-01

    Concerns with public health risks associated with mercury-contaminated fish have prompted a variety of proposals to cut or eliminate mercury emissions. As a step toward assessing how such reductions could affect fish contamination, we develop a cross-sectional epidemiological model of mercury levels in fish. Using data on stream characteristics, land use, the presence of point sources and both measured and modeled atmospheric deposition of mercury, we explain two-thirds of the variation in me...

  18. Augmented Reality Sultan Deli Di Istana Maimun

    OpenAIRE

    Nathan P. L

    2016-01-01

    Augmented reality is a technology that can provide visualization of 3D models. Based from that technology, the modeling from a picture of Sultan Deli Istana Maimun can be applied to restore photos Sultan Deli into a three-dimensional model. This is due to Sultan Deli which is one of the important figures in the history of Medan city known less by the public. Submission of Deli Sultanate history only through such two-dimensional images and other archives. The photo shows the Sultan of Deli ev...

  19. Lean stability augmentation for premixing, prevaporizing combustors

    Science.gov (United States)

    Mcvey, J. B.; Kennedy, J. B.

    1979-01-01

    An experimental program was conducted to investigate techniques for improving the lean combustion limits of premixing, prevaporizing combustors applicable to gas turbine engine main burners. Augmented flameholders employing recessed perforated plates, catalyzed tube bundles, and configurations in which pilot fuel was injected into the wakes of V-gutters or perforated plates were designed and tested. Stable operation of the piloted designs was achieved at equivalence ratios as low as 0.25; NOx emissions of less than 1.0 g/kg at simulated turbine engine cruise conditions were obtained. A piloted perforated plate employing four percent pilot fuel flow produced the best performance while meeting severe NOx constraints.

  20. Stem Cells for Augmenting Tendon Repair

    Directory of Open Access Journals (Sweden)

    Lawrence V. Gulotta

    2012-01-01

    Full Text Available Tendon healing is fraught with complications such as reruptures and adhesion formation due to the formation of scar tissue at the injury site as opposed to the regeneration of native tissue. Stem cells are an attractive option in developing cell-based therapies to improve tendon healing. However, several questions remain to be answered before stem cells can be used clinically. Specifically, the type of stem cell, the amount of cells, and the proper combination of growth factors or mechanical stimuli to induce differentiation all remain to be seen. This paper outlines the current literature on the use of stem cells for tendon augmentation.

  1. Pulmonary Embolism with Vertebral Augmentation Procedures

    Directory of Open Access Journals (Sweden)

    Swetha Bopparaju

    2013-01-01

    Full Text Available With the prevalence of an aging American population on the rise, osteoporotic vertebral fractures are becoming a common occurrence, resulting in an increase in vertebral augmentation procedures and associated complications such as cement leakage, vertebral compressions, and pulmonary embolism. We describe a patient who presented with respiratory distress three years following kyphoplasty of the lumbar vertebra. Computed tomography (CT angiogram of the chest confirmed the presence of polymethylmethacrylate (PMMA cement in the lung fields and pulmonary vessels. We conducted a systematic review of the published literature identifying effective management strategies for the treatment of vertebroplasty-associated pulmonary embolism.

  2. Terrain Simplification Research in Augmented Scene Modeling

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    environment. As one of the most important tasks in augmented scene modeling, terrain simplification research has gained more and more attention. In this paper, we mainly focus on point selection problem in terrain simplification using triangulated irregular network. Based on the analysis and comparison of traditional importance measures for each input point, we put forward a new importance measure based on local entropy. The results demonstrate that the local entropy criterion has a better performance than any traditional methods. In addition, it can effectively conquer the "short-sight" problem associated with the traditional methods.

  3. Augmenting painted architectures for communicating cultural heritage

    OpenAIRE

    Alberto Sdegno; Silvia Masserano; Denis Mior; Paola Cochelli; Eleonora Gobbo

    2015-01-01

    The paper presents a research under development at the University of Trieste to analyze a painted architecture by Paolo Veronese and to present the results using AR systems (Augmented Reality Systems). The canvas was painted in 1573 and it is now at the Gallerie dell’Accademia Museum in Venice. The aim of the research was to transform a two-dimensional work of art in a three dimensional one, allowing all the visitors of a museum to enter the space of the representation and perceive it in a mo...

  4. Augmented virtuality for arthroscopic knee surgery.

    Science.gov (United States)

    Li, John M; Bardana, Davide D; Stewart, A James

    2011-01-01

    This paper describes a computer system to visualize the location and alignment of an arthroscope using augmented virtuality. A 3D computer model of the patient's joint (from CT) is shown, along with a model of the tracked arthroscopic probe and the projection of the camera image onto the virtual joint. A user study, using plastic bones instead of live patients, was made to determine the effectiveness of this navigated display; the study showed that the navigated display improves target localization in novice residents. PMID:22003616

  5. Oyster Creek augmented offgas system startup

    International Nuclear Information System (INIS)

    Oyster Creek Nuclear Station was one of several boiling water reactors requiring backfit with an augmented offgas processing system. Engineering studies conducted during the first half of 1973 resulted in a performance specification for a system with a decontamination factor of 150. The system selected utilized catalytic recombiners with refrigerated charcoal adsorber tanks. Features of the system, up to the startup effort (April of 1977), are described. The various tests established to evaluate system performance under all modes of operation are described along with the results of the completed tests and status of the test program

  6. Towards Wearable Gaze Supported Augmented Cognition

    DEFF Research Database (Denmark)

    Toshiaki Kurauchi, Andrew; Hitoshi Morimoto, Carlos; Mardanbeigi, Diako; Witzner Hansen, Dan

    reduce the amount of information and provide an appropriate mechanism for low and divided attention interaction. We claim that most current gaze interaction paradigms are not appropriate for wearable computing because they are not designed for divided attention. We have used principles suggested by the...... wearable computing community to develop a gaze supported augmented cognition application with three interaction modes. The application provides information of the person being looked at. The continuous mode updates information every time the user looks at a different face. The key activated discrete mode...

  7. Entrainment and mixing in thrust augmenting ejectors

    Science.gov (United States)

    Bernal, L.; Sarohia, V.

    1983-01-01

    An experimental investigation of two-dimensional thrust augmenting ejector flows has been conducted. Measurements of the shroud surface pressure distribution, mean velocity, turbulent intensities and Reynolds stresses were made in two shroud geometries at various primary nozzle pressure ratios. The effects of shroud geometry and primary nozzle pressure ratio on the shroud surface pressure distribution, mean flow field and turbulent field were determined. From these measurements the evolution of mixing within the shroud of the primary flow and entrained fluid was obtained. The relationship between the mean flow field, the turbulent field and the shroud surface pressure distribution is discussed.

  8. Prototyping Methods for Augmented Reality Interaction

    OpenAIRE

    Alce, Günter

    2015-01-01

    The age of wearable technology devices is upon us. These devices are available in many different form factors including head-mounted displays (HMDs), smartwatches and wristbands. They enable access to information at a glance. They are intended to always be ‘‘on’’, to always be acting and to always be sensing the surrounding environment in order to offer a better interface to the real world. A technology suitable for these kinds of user interfaces (UIs) is augmented reality (AR) due to i...

  9. Acute dietary nitrate supplementation does not augment submaximal forearm exercise hyperemia in healthy young men

    OpenAIRE

    Kim, Jin-Kwang; Moore, David J.; Maurer, David G.; Kim-Shapiro, Daniel B.; Basu, Swati; Flanagan, Michael P.; Skulas-Ray, Ann C.; Kris-Etherton, Penny; Proctor, David N.

    2014-01-01

    Despite the popularity of dietary nitrate supplementation and the growing evidence base of its potential ergogenic and vascular health benefits, there is no direct information about its effects on exercising limb blood flow in humans. We hypothesized that acute dietary nitrate supplementation from beetroot juice would augment the increases in forearm blood flow, as well as the progressive dilation of the brachial artery, during graded handgrip exercise in healthy young men. In a randomized, d...

  10. Nutritional impacts on fish mucosa: immunostimulants, pre- and probiotics

    DEFF Research Database (Denmark)

    Caipang, Christopher Marlowe A.; Lazado, Carlo Cabacang

    2015-01-01

    health promoters in aquaculture, there are three major groups that have generated considerable attention: immunostimulants, prebiotics, and probiotics. These feed supplements vary in their modes of action in fish but their ability to boost not only the innate immunity but also the mucosal immunity...... positioned them as significant promoters of fish health. This chapter provides the basic concepts of immunostimulants, prebiotics, and probiotics and their contemporary importance in the health and welfare of aquacultured fish. Specifically, this chapter highlights the current understanding of the roles of...

  11. Fish elevator and method of elevating fish

    Science.gov (United States)

    Truebe, Jonathan; Drooker, Michael S.

    1984-01-01

    A means and method for transporting fish from a lower body of water to a higher body of water. The means comprises a tubular lock with a gated entrance below the level of the lower body of water through which fish may enter the lock and a discharge passage above the level of the upper body of water. The fish raising means in the lock is a crowder pulled upward by a surface float as water from the upper body of water gravitationally flows into the closed lock filling it to the level of the upper body. Water is then pumped into the lock to raise the level to the discharge passage. The crowder is then caused to float upward the remaining distance through the water to the level of the discharge passage by the introduction of air into a pocket on the underside of the crowder. The fish are then automatically discharged from the lock into the discharge passage by the out of water position of the crowder. The movement of the fish into the discharge passage is aided by the continuous overflow of water still being pumped into the lock. A pipe may be connected to the discharge passage to deliver the fish to a selected location in the upper body of water.

  12. Cd, Pb and Hg Biomonitoring in Fish of the Mediterranean Region and Risk Estimations on Fish Consumption

    OpenAIRE

    Elisavet A. Renieri; Alegakis, Athanasios K; Michalis Kiriakakis; Marco Vinceti; Eren Ozcagli; Wilks, Martin F.; TSATSAKIS, ARISTIDIS M.

    2014-01-01

    Cadmium (Cd), lead (Pb) and mercury (Hg) are toxic metals with increasing interest due to their tendency to bioaccumulate in fish tissue which may pose a threat to human health via fish consumption. This review of the recent literature on Cd, Pb, Hg levels summarizes data of fish biomonitoring studies in the Mediterranean Sea in order to determine potential risks due to dietary intake of metals. The analytical methods applied are described, with Atomic Absorption Spectroscopy and Inductively ...

  13. Augmenting Your Own Reality: Student Authoring of Science-Based Augmented Reality Games

    Science.gov (United States)

    Klopfer, Eric; Sheldon, Josh

    2010-01-01

    Augmented Reality (AR) simulations superimpose a virtual overlay of data and interactions onto a real-world context. The simulation engine at the heart of this technology is built to afford elements of game play that support explorations and learning in students' natural context--their own community and surroundings. In one of the more recent…

  14. Value based segmentation : a study of wild fish versus farmed fish consumption in Nha Trang

    OpenAIRE

    Suneth Jayampathi, R.P.S.

    2010-01-01

    The primary purpose of this study was to identify market segments based on personal values, values and lifestyles, environmental concern, fish welfare concern, ethical concern for fish farming and health involvement. A self-administrated questionnaire was conducted on a convenience sample of 209 Vietnamese consumers. It was designed to investigate consumers’ concern for issues used as segmentation basis together with variables used in profiling the segments. The measurement scales used in thi...

  15. Towards an interactive medical system by augmented reality

    Directory of Open Access Journals (Sweden)

    Khawla Ben Abderrahim

    2013-03-01

    Full Text Available Augmented reality is a computer field that progresses rapidly. Its principle is to mix the real world and the virtual world. Many applications already use augmented reality, particularly the medical field. Medical image allows doctors to make diagnosis of the patient. This diagnosis allows him to make the best decision without committing professional mistakes that can cause problems. Hence the idea of integrating augmented reality with medical image analysis to help the doctor to make the best decision. In this paper, we give an overview of our bibliographic study about augmented reality: the definitions and some examples of new augmented reality systems applied in medicine. Thus, we describe basic elements to create an interactive system of augmented reality without markers.

  16. Augmentation of Pedicle Screw Fixation with Calcium Phosphate Cement

    Institute of Scientific and Technical Information of China (English)

    YANG Shu-hua; FU De-hao; LI Jin; XU Wei-hua; YANG Cao; YE Zhe-wei; ZUO Xiao-yan

    2004-01-01

    To determine whether a biodegradable calcium phosphate cement(CPC) provides significant augmentation of pedicle screw fixation or not,an in vitro biomechanical study was carried out to evaluate the biomechanical effect of CPC in the restoration and augmentation of pedicle screw fixation.Axial pullout test and cyclic bending resistance test were employed in the experiment,and polymethylmethacrylate (PMMA) was chosen as control.The results demonstrate that the pullout strengths following CPC restoration and augmentation are 74% greater on an average than those of the control group,but less than those of PMMA restoration group and augmentation group respectively (increased by 126% versus control).In cyclic bending resistance test,the CPC augmented screws are found to withstand a greater number of cycles or greater loading with less displacement before loosening,but the augmentation effect of PMMA is greater than that of CPC.

  17. Performance of a solar augmented heat pump

    Science.gov (United States)

    Bedinger, A. F. G.; Tomlinsin, J. J.; Reid, R. L.; Chaffin, D. J.

    Performance results from a test house equipped with a parallel solar augmented heat pump system with off-peak storage and a utility interconnection back-up, are presented. The collector array consisted of 12 air heating flat plates with a 9 l/sec flow. Thermal storage was consigned to a 260 cu ft crushed limestone pebble bed, with an 8.8 kW heat pump used to draw heat from storage during off-peak hours and a 15 kW electrical resistance heater used to charge the pebble bed. Monitoring and data recording were carried out on all energy inputs and outputs of the systems, and a modified TRNSYS program was employed to model the system performance. The data indicate that although the system offered the possibility of reducing the utility capacity, the addition of the solar system did not significantly augment the performance of the heat-pump system, at least in terms of the cost of supplementary electricity.

  18. Prospects for optogenetic augmentation of brain function

    Directory of Open Access Journals (Sweden)

    Sarah eJarvis

    2015-11-01

    Full Text Available The ability to optically control neural activity opens up possibilities for the restoration of normal function following neurological disorders. The temporal precision, spatial resolution and neuronal specificity that optogenetics offers is unequalled by other available methods, so will it be suitable for not only restoring but also extending brain function? As the first demonstrations of optically ``implanted'' novel memories emerge, we examine the suitability of optogenetics as a technique for extending neural function. While optogenetics is an effective tool for altering neural activity, the largest impediment for optogenetics in neural augmentation is our systems level understanding of brain function. Furthermore, a number of clinical limitations currently remain as substantial hurdles for the applications proposed. While neurotechnologies for treating brain disorders and interfacing with prosthetics have advanced rapidly in the past few years, partially addressing some of these critical problems, optogenetics is not yet suitable for use in humans. Instead we conclude that for the immediate future, optogenetics is the neurological equivalent of the 3D printer: its flexibility providing an ideal tool for testing and prototyping solutions for treating brain disorders and augmenting brain function.

  19. Morphine-augmented cholescintigraphy enhances duodenogastric reflux

    International Nuclear Information System (INIS)

    Morphine intervention in cholescintigraphy decreases imaging time to diagnose acute cholecystitis. Not infrequently we observe duodenogastric reflux during scintigraphy with and without morphine intervention. To evaluate occurrence of duodenogastric reflux related to morphine, we reviewed 55 patients who underwent cholescintigraphy with (32) and without (23) morphine intervention. Morphine was injected when there was bowel activity with non-visualization of the gallbladder at 60 min. Duodenogastric reflux was identified by the appearance of activity in the area just below or immediately adjacent to the tip of the left hepatic lobe laterally. Among 32 patients with morphine intervention, 19 had acute cholecystitis and 13 chronic cholecystitis. Eleven of 19 (58%) with acute cholecystitis had duodenogastric reflux and 6 of 13 (46%) had duodenogastric reflux in chronic cholecystitis. The total of duodenogastric reflux in the group with morphine injection was 53%. Two patients' duodenogastric reflux occurred before morphine injection and was more apparent after morphine was given. In the without morphine group, 3 had acute cholecystitis and 20 had chronic cholecystitis; 2 (one acute and one chronic cholecystitis) of these 23 (9%) had duodenogastric reflux. Our results indicate: occurrence of duodenogastric reflux in morphine augmented cholescintigraphy is not significantly different in cholecystitis from that in chronic cholecystitis; duodenogastric reflux in morphine augmentation occurs significantly more often than without morphine intervention (p<0.001). We conclude that cholescintigraphy with morphine enhances duodenogastric reflux. The degree of duodenogastric reflux in the acute cholecystitis patients has been more severe than in the chronic cholecystitis patients. (author)

  20. Morphine-augmented cholescintigraphy enhances duodenogastric reflux

    Energy Technology Data Exchange (ETDEWEB)

    Shih, Wei-Jen; Magoun, S.; Wierzbinski, B.; Ryo, U-Yun [Kentucky Univ., Lexington, KY (United States). Medical Center; Lee, Jong-Kang

    1995-11-01

    Morphine intervention in cholescintigraphy decreases imaging time to diagnose acute cholecystitis. Not infrequently we observe duodenogastric reflux during scintigraphy with and without morphine intervention. To evaluate occurrence of duodenogastric reflux related to morphine, we reviewed 55 patients who underwent cholescintigraphy with (32) and without (23) morphine intervention. Morphine was injected when there was bowel activity with non-visualization of the gallbladder at 60 min. Duodenogastric reflux was identified by the appearance of activity in the area just below or immediately adjacent to the tip of the left hepatic lobe laterally. Among 32 patients with morphine intervention, 19 had acute cholecystitis and 13 chronic cholecystitis. Eleven of 19 (58%) with acute cholecystitis had duodenogastric reflux and 6 of 13 (46%) had duodenogastric reflux in chronic cholecystitis. The total of duodenogastric reflux in the group with morphine injection was 53%. Two patients` duodenogastric reflux occurred before morphine injection and was more apparent after morphine was given. In the without morphine group, 3 had acute cholecystitis and 20 had chronic cholecystitis; 2 (one acute and one chronic cholecystitis) of these 23 (9%) had duodenogastric reflux. Our results indicate: occurrence of duodenogastric reflux in morphine augmented cholescintigraphy is not significantly different in cholecystitis from that in chronic cholecystitis; duodenogastric reflux in morphine augmentation occurs significantly more often than without morphine intervention (p<0.001). We conclude that cholescintigraphy with morphine enhances duodenogastric reflux. The degree of duodenogastric reflux in the acute cholecystitis patients has been more severe than in the chronic cholecystitis patients. (author).

  1. Augmenting Probabilistic Risk Assesment with Malevolent Initiators

    Energy Technology Data Exchange (ETDEWEB)

    Curtis Smith; David Schwieder

    2011-11-01

    As commonly practiced, the use of probabilistic risk assessment (PRA) in nuclear power plants only considers accident initiators such as natural hazards, equipment failures, and human error. Malevolent initiators are ignored in PRA, but are considered the domain of physical security, which uses vulnerability assessment based on an officially specified threat (design basis threat). This paper explores the implications of augmenting and extending existing PRA models by considering new and modified scenarios resulting from malevolent initiators. Teaming the augmented PRA models with conventional vulnerability assessments can cost-effectively enhance security of a nuclear power plant. This methodology is useful for operating plants, as well as in the design of new plants. For the methodology, we have proposed an approach that builds on and extends the practice of PRA for nuclear power plants for security-related issues. Rather than only considering 'random' failures, we demonstrated a framework that is able to represent and model malevolent initiating events and associated plant impacts.

  2. Virtually-augmented interfaces for tactical aircraft.

    Science.gov (United States)

    Haas, M W

    1995-05-01

    The term Fusion Interface is defined as a class of interface which integrally incorporates both virtual and non-virtual concepts and devices across the visual, auditory and haptic sensory modalities. A fusion interface is a multi-sensory virtually-augmented synthetic environment. A new facility has been developed within the Human Engineering Division of the Armstrong Laboratory dedicated to exploratory development of fusion-interface concepts. One of the virtual concepts to be investigated in the Fusion Interfaces for Tactical Environments facility (FITE) is the application of EEG and other physiological measures for virtual control of functions within the flight environment. FITE is a specialized flight simulator which allows efficient concept development through the use of rapid prototyping followed by direct experience of new fusion concepts. The FITE facility also supports evaluation of fusion concepts by operational fighter pilots in a high fidelity simulated air combat environment. The facility was utilized by a multi-disciplinary team composed of operational pilots, human-factors engineers, electronics engineers, computer scientists, and experimental psychologists to prototype and evaluate the first multi-sensory, virtually-augmented cockpit. The cockpit employed LCD-based head-down displays, a helmet-mounted display, three-dimensionally localized audio displays, and a haptic display. This paper will endeavor to describe the FITE facility architecture, some of the characteristics of the FITE virtual display and control devices, and the potential application of EEG and other physiological measures within the FITE facility. PMID:7647184

  3. Augmented reality usage for prototyping speed up

    CERN Document Server

    Stastny, Jiri; Koubek, Tomas; Landa, Jaromir

    2011-01-01

    The first part of the article describes our approach for solution of this problem by means of Augmented Reality. The merging of the real world model and digital objects allows streamline the work with the model and speed up the whole production phase significantly. The main advantage of augmented reality is the possibility of direct manipulation with the scene using a portable digital camera. Also adding digital objects into the scene could be done using identification markers placed on the surface of the model. Therefore it is not necessary to work with special input devices and lose the contact with the real world model. Adjustments are done directly on the model. The key problem of outlined solution is the ability of identification of an object within the camera picture and its replacement with the digital object. The second part of the article is focused especially on the identification of exact position and orientation of the marker within the picture. The identification marker is generalized into the tr...

  4. Contamination of fish in important fishing grounds of the Czech Republic.

    Science.gov (United States)

    Cerveny, Daniel; Zlabek, Vladimir; Velisek, Josef; Turek, Jan; Grabic, Roman; Grabicova, Katerina; Fedorova, Ganna; Rosmus, Jan; Lepic, Pavel; Randak, Tomas

    2014-11-01

    The aim of this study was to compare the contamination levels of certain important fishing grounds in the Czech Republic and to assess the health risk of consuming the fish from these localities. The assessment was performed from 2006 to 2010 in 27 fishing grounds. Within this project, 707 fish from 14 different species were sampled. The concentration of selected toxic metals (Hg, Pb, Cd) and persistent organic pollutants (POPs), such as non-dioxin-like polychlorinated biphenyls (NDL-PCBs), hexachlorocyclohexane (HCH) isomers, dichlorodiphenyltrichloroethane (DDT) and its metabolites (o,p´-DDE; p,p´-DDE; o,p´-DDD; p,p´-DDD; o,p´-DDT; p,p´-DDT) and hexachlorobenzene (HCB), were analysed in the muscle tissue of the sampled fish. Atomic absorption spectrometry (AAS) was used for the analysis of toxic metals. All of the POPs were analysed using gas chromatography with an electron capture detector (GC/ECD). Common bream (Abramis brama) was chosen as a reference fish species for the comparison of fishing grounds. Mercury was found as a major pollutant in fish flesh at all of the sampling sites. Concentrations in excess of the maximum level (ML) of mercury in the muscle tissue of fish (0.5 mg kg(-1)) were registered in 32 samples. Concentrations of other monitored toxic metals in fish muscle were low, typically below the limit of quantification (LOQ). From the tested POPs, DDTs and NDL-PCBs were found as major pollutants. ML for NDL-PCBs (ICES-6) in muscle tissue of fish (0.125 mg kg(-1)) was exceeded in 7 samples. In case of tested pesticides, concentrations in excess of the MRL were not registered. PMID:25173745

  5. Complications from injectable materials used for breast augmentation

    OpenAIRE

    Peters, Walter; Fornasier, Victor

    2009-01-01

    Fewer surgical procedures have a history as fascinating and as terrifying as breast augmentation. Initial efforts at augmentation involved injection of substances such as paraffin or oil into the breast tissue, or the implantation of substances including ivory or glass balls, or rubber. More recent efforts have included the injection of liquid silicone or polyacrylamide hydrogel. The current paper reviews four distinct eras of breast augmentation, and provides the current status of these inje...

  6. Integrative Augmentation with the New ISO 10000 Standards1

    OpenAIRE

    Karapetrovic Stanislav

    2014-01-01

    Application and integration of the systems based on ISO 10001: 2007 and other new augmentative standards are discussed. Particular attention is paid to the quality management standards forming the front end of the ISO 10000 series, namely ISO 10001, ISO 10002 and ISO 10003, as well as ISO 19011, the standard which stems from the original augmentative ISO 10000 guideline, specifically ISO 10011 on quality auditing. The ability of these and other similar standards to augment the performance of ...

  7. Real-Time Augmented Reality for Image-Guided Interventions

    OpenAIRE

    Vogt, Sebastian

    2010-01-01

    The aim of this thesis is to design, develop, and study a new approach to interventional image guidance based on augmented reality visualization – the merging of real and virtual images. This work broadly reviews and categorizes all preliminary augmented reality prototype systems for interventional image guidance. A novel augmented reality setup is introduced and engineered for interventional guidance tasks, integrating pre-operative imaging, namely CT and MRI, as well as real-time ultrasound...

  8. Augmented sculptures: what you see is not what you see

    OpenAIRE

    Artut, Selçuk Hüseyin; Artut, Selcuk Huseyin

    2015-01-01

    The idea of Augmented Reality Technologies enhances our ability to perceive a location with additional 3D visual elements. A point of interest becomes meta-constructed with addition of extended layers via augmented space elements. Augmented Reality presents us a virtually enriched version of a visually noticeable reality world which already exists and can easily be seen. In this article, in addition to questioning the representative existence of the art object in the work of art called “What ...

  9. Maintenance applications of augmented reality for the Chinese aerospace industry

    OpenAIRE

    Ou, Peng

    2011-01-01

    Since augmented reality has not reached full maturity in use, it is not widely adopted within the aerospace industry. According to the literature review, minimal research efforts have been conducted to assess the cost-benefit or cost- effectiveness of augmented reality so far. Moreover, to the best of researcher’s knowledge, no research has been carried out to develop a systematic process for selecting and implementing augmented reality within the Chinese aerospace industry....

  10. Towards an interactive medical system by augmented reality

    OpenAIRE

    Khawla Ben Abderrahim; Mohamed Kallel; M. S. Bouhlel

    2013-01-01

    Augmented reality is a computer field that progresses rapidly. Its principle is to mix the real world and the virtual world. Many applications already use augmented reality, particularly the medical field. Medical image allows doctors to make diagnosis of the patient. This diagnosis allows him to make the best decision without committing professional mistakes that can cause problems. Hence the idea of integrating augmented reality with medical image analysis to help the doctor to make the bes...

  11. AUGMENTED REALITY - STATE OF KNOWLEDGE, USE AND EXPERIMENTATION

    OpenAIRE

    Mihaela Filofteia TUTUNEA

    2013-01-01

    Technologies for augmenting reality have been consolidated during the last decades, extending their applicability to more and more socio-economic areas. The rapid evolution of mobile technologies and virtualization of the digital environment have created auspicious conditions for massive extension and implementation of solutions for augmenting reality at global level. Experience has already shown that augmented reality, alongside virtual reality can offer very important support so...

  12. Vaccination in Fish

    DEFF Research Database (Denmark)

    Chettri, Jiwan Kumar

    vaccines have reduced the need for usage of antibiotics with more than 99 % since the 1980s. Fish can be vaccinated by three different administration routes: injection, immersion and oral vaccination. Injection vaccination (intraperitoneal injection of vaccine) is the most time consuming and labor...... intensive method, which however, provides the best protection of the fish. Immersion vaccination is used for immunization of a high number of small fish is cost-efficient and fast (30 sec immersion into vaccine). Oral vaccination (vaccine in feed) is the least efficient. As in higher vertebrates fish...... respond to vaccination by increasing the specific antibody titer and by activating the cellular responses. My talk will cover vaccination methods in fish, immune responses and some adverse effect of oil-adjuvanted vaccines in fish with reference to our work in rainbow trout, Oncorhynchus mykiss....

  13. Designing Recreational Virtual Environments for Older Adult Nursing Home Residents - How Nature And Content Matter For Improving Augmented Exercise Experiences

    DEFF Research Database (Denmark)

    Bruun-Pedersen, Jon Ram; Serafin, Stefania; Kofoed, Lise B.

    2016-01-01

    natural surroundings. Augmenting a conventional biking exercise with a recreational virtual environment (RVE) has shown to serve as an intrinsic motivation contributor to exercise for nursing home residents. RVEs might be able to provide some of the health benefits that regular nature experiences do, but...

  14. Fish protein hydrolysates

    Energy Technology Data Exchange (ETDEWEB)

    Mackie, I.M.

    1982-01-01

    Proteolytic enzymes now available in commercial quantities can be used to liquefy the fish and fish waste presently considered suitable for conversion to fish meal. The products obtained are readily dispersed or dissolved in water and have a high nutritional value. They have been satisfactorily used as substitutes for milk proteins in milk replacers for young animals. Further research is necessary on means of controlling the degree of hydrolysis to give protein preparations with acceptable functional properties as human food supplements. (Refs. 21).

  15. Fish and wildlife surveillance

    International Nuclear Information System (INIS)

    This section of the 1994 Hanford Site Environmental Report summarizes the monitoring of radioactive contaminants in fish and wildlife species that inhabit the Colombia River and Hanford Site. Wildlife have access to areas of the Site containing radioactive contamination, and fish can be exposed to contamination in spring water entering the river along the shoreline. Therefore, samples are collected at various locations annually, generally during the hunting or fishing season, for selected species

  16. Fish and wildlife surveillance

    Energy Technology Data Exchange (ETDEWEB)

    Poston, T.M.

    1995-06-01

    This section of the 1994 Hanford Site Environmental Report summarizes the monitoring of radioactive contaminants in fish and wildlife species that inhabit the Colombia River and Hanford Site. Wildlife have access to areas of the Site containing radioactive contamination, and fish can be exposed to contamination in spring water entering the river along the shoreline. Therefore, samples are collected at various locations annually, generally during the hunting or fishing season, for selected species.

  17. Hematological and biochemical alterations in the fish Prochilodus lineatus caused by the herbicide clomazone.

    Science.gov (United States)

    Pereira, Lindalva; Fernandes, Marisa N; Martinez, Cláudia B R

    2013-07-01

    The indiscriminate use of herbicides has led to the contamination of water bodies, possibly affecting the health of aquatic biota. Therefore, to evaluate the possible effects of the clomazone-based herbicide (Gamit(®) 500) on the fish Prochilodus lineatus, juveniles were exposed for 96h to three concentrations (1, 5 and 10mgL(-1)) of clomazone, and an analysis was made of their hematological parameters: hemoglobin (Hb); hematocrit (Hct); red blood cell (RBC) count; mean corpuscular volume (MCV); mean corpuscular hemoglobin (MCH); mean corpuscular hemoglobin concentration (MCHC) and biochemical parameters: glutathione S-transferase (GST); catalase (CAT); glutathione peroxidase (GPx) and acetylcholinesterase (AChE). Hct presented a significant decrease at the concentration of 10mgL(-1), while the parameters Hb, HCM and MCHC presented a significant decrease at the two higher concentrations, indicating an anemic condition. The RBC increased significantly at the lowest concentration, possibly due to the release of new red blood cells into the bloodstream in response to splenic contraction, which may occur as an adaptive response to the stressor agent. P. lineatus presented activation of the biotransformation pathway, indicated by augmented hepatic activity of the enzyme GST and hepatic activation of the antioxidant enzyme CAT at the higher concentrations. Liver GPx was significantly inhibited at the higher concentrations, which may indicate the efficient action of CAT in the elimination of H2O2 or its competition with GST for the same substrate (GSH). AChE activity in brain and muscle was inhibited at the higher concentrations, indicating the neurotoxic effects of the herbicide in the fish. The hematological and biochemical alterations led to the conclusion that the herbicide clomazone has toxic effects on the species P. lineatus, and that its presence in the environment may jeopardize the health of these animals. PMID:23538322

  18. Complications of polyacrylamide hydrogel (PAAG) injection in facial augmentation.

    Science.gov (United States)

    Liu, H L; Cheung, W Y

    2010-01-01

    Polyacrylamide hydrogel (PAAG) has been used as an injectable filler for soft tissue augmentation for more than a decade. In recent years, PAAG has been advocated as a safe soft tissue filler for facial augmentation. However, the complications associated with PAAG injection in facial augmentation have not been widely covered in the literature. We present two cases of severe complications associated with PAAG injection in facial augmentation, including bony erosion and facial ulcer. Further studies are required to support the safety of PAAG in facial injection. PMID:19540824

  19. Augmented Reality Games on the iPhone

    OpenAIRE

    Rösler, Amanda

    2009-01-01

    Augmented reality opens up a lot of possibilities for new types of games, where the real and the virtual world are mixed. Despite this, augmented reality games are still not very common, probably due to the fact that head-mounted displays (which are often used for augmented reality) are expensive. However, in recent years mobile phones have become more and more powerful, and since many of them have built-in cameras and rather large screens, they are a potential platform for augmented reality ...

  20. Phase I Water Rental Pilot Project : Snake River Resident Fish and Wildlife Resources and Management Recommendations.

    Energy Technology Data Exchange (ETDEWEB)

    Riggin, Stacey H.; Hansen, H. Jerome

    1992-10-01

    The Idaho Water Rental Pilot Project was implemented as a part of the Non-Treaty Storage Fish and Wildlife Agreement (NTSA) between Bonneville Power Administration and the Columbia Basin Fish and Wildlife Authority. The goal of the project is to improve juvenile and adult salmon and steelhead passage in the lower Snake River with the use of rented water for flow augmentation. The primary purpose of this project is to summarize existing resource information and provide recommendations to protect or enhance resident fish and wildlife resources in Idaho with actions achieving flow augmentation for anadromous fish. Potential impacts of an annual flow augmentation program on Idaho reservoirs and streams are modeled. Potential sources of water for flow augmentation and operational or institutional constraints to the use of that water are identified. This report does not advocate flow augmentation as the preferred long-term recovery action for salmon. The state of Idaho strongly believes that annual drawdown of the four lower Snake reservoirs is critical to the long-term enhancement and recovery of salmon (Andrus 1990). Existing water level management includes balancing the needs of hydropower production, irrigated agriculture, municipalities and industries with fish, wildlife and recreation. Reservoir minimum pool maintenance, water quality and instream flows are issues of public concern that will be directly affected by the timing and quantity of water rental releases for salmon flow augmentation, The potential of renting water from Idaho rental pools for salmon flow augmentation is complicated by institutional impediments, competition from other water users, and dry year shortages. Water rental will contribute to a reduction in carryover storage in a series of dry years when salmon flow augmentation is most critical. Such a reduction in carryover can have negative impacts on reservoir fisheries by eliminating shoreline spawning beds, reducing available fish habitat

  1. Effects of various feed supplements containing fish protein hydrolysate or fish processing by-products on the innate immune functions of juvenile coho salmon (oncorhynchus kisutch)

    Science.gov (United States)

    Murray, A.L.; Pascho, R.J.; Alcorn, S.W.; Fairgrieve, W.T.; Shearer, K.D.; Roley, D.

    2003-01-01

    Immunomodulators administered to fish in the diet have been shown in some cases to enhance innate immune defense mechanisms. Recent studies have suggested that polypeptide fractions found in fish protein hydrolysates may stimulate factors in fish important for disease resistance. For the current study, groups of coho salmon were reared on practical feeds that contained either fish meal (Control diet), fish meal supplemented with cooked fish by-products, or fish meal supplemented with hydrolyzed fish protein alone, or with hydrolyzed fish protein and processed fish bones. For each diet group, three replicate tanks of fish were fed the experimental diets for 6 weeks. Morphometric measurements, and serologic and cellular assays were used to evaluate the general health and immunocompetence of fish in the various feed groups. Whereas the experimental diets had no effect on the morphometric and cellular measurements, fish fed cooked by-products had increased leucocrit levels and lower hematocrit levels than fish from the other feed groups. Innate cellular responses were increased in all feed groups after feeding the four experimental diets compared with pre-feed results. Subgroups of fish from each diet group were also challenged with Vibrio anguillarum (ca. 7.71 ?? 105 bacteria ml-1) at 15??C by immersion. No differences were found in survival among the various feed groups.

  2. Intelligent Fish Freshness Assessment

    Directory of Open Access Journals (Sweden)

    Deena Benjamin

    2008-04-01

    Full Text Available Fish species identification and automated fish freshness assessment play important roles in fishery industry applications. This paper describes a method based on support vector machines (SVMs to improve the performance of fish identification systems. The result is used for the assessment of fish freshness using artificial neural network (ANN. Identification of the fish species involves processing of the images of fish. The most efficient features were extracted and combined with the down-sampled version of the images to create a 1D input vector. Max-Win algorithm applied to the SVM-based classifiers has enhanced the reliability of sorting to 96.46%. The realisation of Cyranose 320 Electronic nose (E-nose, in order to evaluate the fish freshness in real-time, is experimented. Intelligent processing of the sensor patterns involves the use of a dedicated ANN for each species under study. The best estimation of freshness was provided by the most sensitive sensors. Data was collected from four selected species of fishes over a period of ten days. It was concluded that the performance can be increased using individual trained ANN for each specie. The proposed system has been successful in identifying the number of days after catching the fish with an accuracy of up to 91%.

  3. Of Fish and Micrornas

    DEFF Research Database (Denmark)

    Bela-Ong, Dennis; Schyth, Brian Dall; Lorenzen, Niels

    Fish is an important small vertebrate multidisciplinary model for investigating various aspects of reproduction, development, disease (immunology, toxicology, carcinogenesis), and aging. It is also an important model for comparative and evolutionary studies because it represents the lower...... to the mechanisms of control of gene expression, impacting a broad range of biological processes. Thus far, >25, 000 miRNA sequences have been identified in 193 species, including fish. In fish, the interest on miRNAs started with the analysis of their expression and function during embryonic development. In our...... selection markers to identify disease-resistant fish....

  4. Benefits and risks of fish consumption

    International Nuclear Information System (INIS)

    In recent years, and based on the importance of fish as a part of a healthy diet, there has been a notable promotion of fish consumption. However, the balance between health benefits and risks, due to the intake of chemical contaminants, is not well characterized. In the present study, edible samples of 14 marine species were analyzed for the concentrations of omega-3 fatty acids, as well as a number of metals and organic pollutants. Daily intakes were specifically determined for a standard adult of 70 kg, and compared with the tolerable/admissible intakes of the pollutants, if available. Salmon, mackerel, and red mullet were the species showing the highest content of omega-3 fatty acids. The daily intakes of cadmium, lead, and mercury through fish consumption were 1.1, 2.0, and 9.9 μg, respectively. Dioxins and furans plus dioxin-like polychlorinated biphenyls (PCBs) intake was 38.0 pg WHO-TEQ/day, whereas those of polybrominated diphenyl ethers (PBDEs), polychlorinated diphenyl ethers (PCDEs), polychlorinated naphthalenes (PCNs) and hexachlorobenzene (HCB) were 20.8, 39.4, 1.53, and 1.50 ng/day, respectively. In turn, the total intake of 16 analyzed polycyclic aromatic hydrocarbons (PAHs) was 268 ng/day. The monthly fish consumption limits for human health endpoints based on the intake of these chemical contaminants were calculated for a 70 years exposure. In general terms, most marine species here analyzed should not mean adverse health effects for the consumers. However, the type of fish, the frequency of consumption, and the meal size are essential issues for the balance of the health benefits and risks of regular fish consumption

  5. Essential Fish Habitat (EFH) Areas Protected From Fishing

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Designated Essential Fish Habitat (EFH) areas where fishing or the use of fishing gears has been restricted or modified in order to minimize the adverse effects of...

  6. Fish silage as feed ingredient for fish and livestock

    OpenAIRE

    Rurangwa, E.; Vuuren, van, T.; Poelman, M.

    2014-01-01

    The present report analyses through a literature review the potential of fish silage to valorise fish processing by-products into economically relevant protein sources for fish and livestock feed production in East Africa.

  7. Radiation therapy after breast augmentation or reconstruction

    International Nuclear Information System (INIS)

    This paper evaluates the feasibility and cosmetic results of definitive breast irradiation in the presence of a silicone prosthesis. Fourteen patients who presented between 1984 and 1989 with a diagnosis of primary (four patients) or locally recurrent (ten patients) breast cancer and whose augmented or reconstructed breasts were treated with radiation were evaluated for acute and late complications. Silicone gel implants were used in 13 patients and free injected silicone in one patient. The total dose ranged from 4,400 to 6,200 cGy with use of tangential photon fields or an en face electron field by megavoltage equipment. In several cases, electron boost was added to the tumor bed

  8. Augmented reality. Fundamentals and nuclear related applications

    International Nuclear Information System (INIS)

    In recent years, Augmented Reality (AR) has attracted considerable interest from both academia and industry. Virtual Reality enables users to interact only with virtual objects in a virtual environment, but AR enables users to interact with both virtual objects and real objects in the real world. This feature supports application of AR to various fields such as education, driving, entertainment, and navigation. Especially, by application of AR to support workers in nuclear power plants, it is expected that working time and human error can be decreased. However, many problems remain unsolved to apply AR to real fields. In this lecture note, fundamental knowledge of AR is presented first including the overview of elemental technologies to realize AR. Then various AR applications to nuclear fields are described. Finally, future prospects are given. (author)

  9. Axillary silicone lymphadenopathy secondary to augmentation mammaplasty

    Directory of Open Access Journals (Sweden)

    Dragoumis Dimitrios

    2010-01-01

    Full Text Available We report a case involving a 45-year-old woman, who presented with an axillary mass 10 years after bilateral cosmetic augmentation mammaplasty. A lump was detected in the left axilla, and subsequent mammography and magnetic resonance imaging demonstrated intracapsular rupture of the left breast prosthesis. An excisional biopsy of the left axillary lesion and replacement of the ruptured implant was performed. Histological analysis showed that the axillary lump was lymph nodes containing large amounts of silicone. Silicone lymphadenopathy is an obscure complication of procedures involving the use of silicone. It is thought to occur following the transit of silicone droplets from breast implants to lymph nodes by macrophages and should always be considered as a differential diagnosis in patients in whom silicone prostheses are present.

  10. Dermal fillers for tissue augmentation: an overview

    Directory of Open Access Journals (Sweden)

    Zeplin, Philip H.

    2014-06-01

    Full Text Available [english] Treatments with dermal fillers for tissue augmentation constitute the majority of all non-surgical procedures in plastic surgery. Newly developed products get launched and the market grows continuously, but the “ideal” substance has yet not been found. The substances used these days are high molecular compounds. They have substantial differences in their physicochemical properties and are suspended in complex matrices. This overview describes the latest history of dermal fillers and the commonly used substances of different origin and formalizes the need for the development of systematic procedures of standardized pre-clinical tests with subsequent certification as well as the establishment of interdisciplinary clinical guidelines to ensure custumer’s safety.

  11. Temporal Coherence Strategies for Augmented Reality Labeling.

    Science.gov (United States)

    Madsen, Jacob Boesen; Tatzqern, Markus; Madsen, Claus B; Schmalstieg, Dieter; Kalkofen, Denis

    2016-04-01

    Temporal coherence of annotations is an important factor in augmented reality user interfaces and for information visualization. In this paper, we empirically evaluate four different techniques for annotation. Based on these findings, we follow up with subjective evaluations in a second experiment. Results show that presenting annotations in object space or image space leads to a significant difference in task performance. Furthermore, there is a significant interaction between rendering space and update frequency of annotations. Participants improve significantly in locating annotations, when annotations are presented in object space, and view management update rate is limited. In a follow-up experiment, participants appear to be more satisfied with limited update rate in comparison to a continuous update rate of the view management system. PMID:26780810

  12. Extended overview techniques for outdoor augmented reality.

    Science.gov (United States)

    Veas, Eduardo; Grasset, Raphaël; Kruijff, Ernst; Schmalstieg, Dieter

    2012-04-01

    In this paper, we explore techniques that aim to improve site understanding for outdoor Augmented Reality (AR) applications. While the first person perspective in AR is a direct way of filtering and zooming on a portion of the data set, it severely narrows overview of the situation, particularly over large areas. We present two interactive techniques to overcome this problem: multi-view AR and variable perspective view. We describe in details the conceptual, visualization and interaction aspects of these techniques and their evaluation through a comparative user study. The results we have obtained strengthen the validity of our approach and the applicability of our methods to a large range of application domains. PMID:22402683

  13. Augmenting Usability: Cultural Elicitation in HCI

    Science.gov (United States)

    Camara, Souleymane Boundaouda; Oyugi, Cecilia; Abdelnour-Nocera, José; Smith, Andy

    This paper offers context and culture elicitation in an inter-cultural and multi-disciplinary setting of ICT design. Localised usability evaluation (LUE) is augmented with a socio-technical evaluation tool (STEM) as a methodological approach to expose and address issues in a collaborative ICT design within the Village e-Science for Life (VeSeL) project in rural Kenya. The paper argues that designers need to locally identify context and culture in situ and further explicate their implications through the design process and at the global level. Stakeholders' context, culture, decisions, agendas, expectations, disciplines and requirements need to be locally identified and globally evaluated to ensure a fit for purpose solution.

  14. Reconfigurable hardware for an augmented reality application

    Science.gov (United States)

    Toledo Moreo, F. Javier; Martinez Alvarez, J. Javier; Garrigos Guerrero, F. Javier; Ferrandez Vicente, J. Manuel

    2005-06-01

    An FPGA-based approach is proposed to build an augmented reality system in order to aid people affected by a visual disorder known as tunnel vision. The aim is to increase the user's knowledge of his environment by superimposing on his own view useful information obtained with image processing. Two different alternatives have been explored to perform the required image processing: a specific purpose algorithm to extract edge detection information, and a cellular neural network with the suitable template. Their implementations in reconfigurable hardware pursue to take advantage of the performance and flexibility that show modern FPGAs. This paper describes the hardware implementation of both the Canny algorithm and the cellular neural network, and the overall system architecture. Results of the implementations and examples of the system functionality are presented.

  15. Status of Magnetohydrodynamic Augmented Propulsion Experiment

    Science.gov (United States)

    Litchford, Ron J.; Lineberry, John T.

    2007-01-01

    Over the past several years, efforts have been under way to design and develop an operationally flexible research facility for investigating the use of cross-field MHD accelerators as a potential thrust augmentation device for thermal propulsion systems, The baseline configuration for this high-power experimental facility utilizes a 1,5-MW, multi-gas arc-heater as a thermal driver for a 2-MW, MHD accelerator, which resides in a large-bore 2-tesla electromagnet. A preliminary design study using NaK seeded nitrogen as the working fluid led to an externally diagonalized segmented MHD channel configuration based on an expendable beat-sink design concept. The current status report includes a review of engineering/design work and performance optimization analyses and summarizes component hardware fabrication and development efforts, preliminary testing results, and recent progress toward full-up assembly and testing

  16. Development of the augmented musculature device.

    Energy Technology Data Exchange (ETDEWEB)

    Rohrer, Brandon Robinson; Pankretz, Ty

    2004-12-01

    We developed an Augmented Musculature Device (AMD) that assists the movements of its wearer. It has direct application to aiding military and law enforcement personnel, the neurologically impaired, or those requiring any type of cybernetic assistance. The AMD consists of a collection of artificial muscles, each individually actuated, strategically placed along the surface of the human body. The actuators employed by the AMD are known as 'air muscles' and operate pneumatically. They are commercially available from several vendors and are relatively inexpensive. They have a remarkably high force-to-weight ratio--as high as 400:1 (as compared with 16:1 typical of DC motors). They are flexible and elastic, even when powered, making them ideal for interaction with humans.

  17. Digital Facial Augmentation for Interactive Entertainment

    Directory of Open Access Journals (Sweden)

    Naoto Hieda

    2015-08-01

    Full Text Available Digital projection technology allows for effective and entertaining spatial augmented reality applications. Leveraging the capabilities of reasonably accurate object tracking using commodity cameras and/or depth sensors to determine the 3D position and pose of objects in real time, it is possible to project dynamic graphical content on arbitrary surfaces, such as a person’s face. Coupling these capabilities with a simple drawing application, participants can have the experience of "painting" on someone’s face, or even on their own, by observing the projection in a mirror. Similarly, integrating 2D rigid-body, fluid and gravity simulation, one may interact with virtual objects projected on their own face or body.

  18. Performance of a solar augmented heat pump

    Science.gov (United States)

    Bedinger, A. F. G.; Tomlinson, J. J.; Reid, R. L.; Chaffin, D. J.

    Performance of a residential size solar augmented heat pump is reported for the 1979-1980 heating season. The facility located in Knoxville, Tennessee, has a measured heat load coefficient of 339.5 watt/C (644 BTU/hr- F). The solar augmented heat pump system consists of 7.4 cu m of one inch diameter crushed limestone. The heat pump is a nominal 8.8 KW (2 1/2 ton) high efficiency unit. The system includes electric resistance heaters to give the option of adding thermal energy to the pebble bed storage during utility off-peak periods, thus offering considerable load management capability. A 15 KW electric resistance duct heater is used to add thermal energy to the pebble bin as required during off-peak periods. Hourly thermal performance and on site weather data was taken for the period November 1, 1979, to April 13, 1980. Thermal performance data consists of heat flow summations for all modes of the system, pebble bed temperatures, and space temperature. Weather data consists of dry bulb temperature, dew point temperature, total global insolation (in the plane of the collector), and wind speed and direction. An error analysis was performed and the least accurate of the measurements was determined to be the heat flow at 5%. Solar system thermal performance factor was measured to be 8.77. The heat pump thermal performance factor was 1.64. Total system seasonal performance factor was measured to be 1.66. Using a modified version of TRNSYS, the thermal performance of this system was simulated. When simulation results were compared with data collected onsite, the predicted heat flow and power consumption generally were within experimental accuracy.

  19. Googles Augmented-Reality-Game "Ingress"

    Directory of Open Access Journals (Sweden)

    Karl H. Stingeder

    2013-12-01

    Full Text Available Das an das "Geocoaching"-Spielprinzip erinnernde Augmented-­Reality-Game "Ingress" ist auf allen mit Android-Betriebssystem ausgestatteten Smartphones spielbar. Das Alleinstellungsmerkmal des Spiels ist gleich­zeitig auch das beste Patent-Rezept für bzw. gegen notorisches "Couch-Potato-ing": Das Game-Design des "Draußenspiels" erfordert jedoch stets die physische Anwesenheit der SpielerInnen am realen Ort des Geschehens, meist touristisch attraktive Sehenswürdigkeiten und architektonisch markante Plätze. Sobald "Ingress" per App am Smart­phone gestartet wird, stehen Interaktionen und Machtverhältnisse auf dem Handy-Display im Dreh- und Angelpunkt des Geschehens. Die Spielgrafik ist auf das Wesentliche reduziert und erinnert an die Optik von Videospielen der 80er Jahre. "Ingress" im Allgemeinen sowie "Magnus13", die erste von Google organisierte Fan-Veranstaltung Österreichs mit mehreren Hundert TeilnehmerInnen und ist mit einer "digitalen Schnitzeljagd" vergleichbar: Gemeinsam ist der klassischen "Schnitzeljagd" und dem digitalen "Schere-Schein-Papier" Prinzip von "Ingress" die tragende Rolle des im Spiel entstehenden Gemeinschaftsgefühls, welche in einer hohen Langzeitmotivation mündet. Trotz aller Euphorie, ob des unkonventionellen Augmented-Reality-Spielkonzepts und des in Folge der sozialen Dynamik außergewöhnlichen Sucht­potentials, ist angesichts von Edward Snowden und vielfältiger NSA-Abhörmaßnahmen, eine gesunde Portion Skepsis angebracht: Welchen Zweck erfüllt "Ingress"? Gibt es ein verhülltes "Mittel zum Zweck"? Welche Gefahren bestehen mit einer systematischen Auswertung des umfangreichen, ortsrelevanten Daten-Sammelsuriums? "Ingress" verdeutlicht trotz aller Risiken den soziokulturellen Bedeutungswandel des digitalen Spiels: Spiele per se und das Spiel als soziale Interaktion sind aktuell dabei, alle Bereiche unseres Lebens zu erfassen.

  20. Colville Tribal Fish Hatchery, 2001-2002 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Arteburn, John; Christensen, David (Colville Confederated Tribes, Nespelem, WA)

    2003-03-01

    Federal hydropower projects as well as private power utility systems have had a major negative impact upon anadromous fish resources that once flourished in the Columbia River and it's tributaries. Several areas have been completely blocked to anadromous fish by dams, destroying the primary food resource (salmon) for many native people forcing them to rely heavily upon resident fish to replace these lost resources. The Colville Tribal Fish Hatchery is an artificial production program that addresses the loss of anadromous fish resources in the Upper Columbia Sub-Region within the ''blocked area'' created by the construction of Chief Joseph and Grand Coulee Dams. This project enhances resident fisheries located in the Intermountain and Columbia Cascade Provinces, specifically within the Colville Reservation portion of the Upper Columbia, SanPoil and Oakanogan Sub-Basins. The project partially mitigates for anadromous fish losses through protection/augmentation of resident fish populations to enhance fishery potential (i.e. in-place, out-of-kind mitigation) pursuant to Resident Fish Substitution Policy of the Northwest Power Planning Councils Fish and Wildlife Program. The hatchery was accepted into the Council's Fish and Wildlife Program in 1984 and the hatchery was completed in 1990. The Colville Tribal Hatchery (CTH) is located on the northern bank of the Columbia River just down stream of the town of Bridgeport, Washington that is just down stream of Chief Joseph Dam. The hatchery is located on land owned by the Colville Tribes. The minimum production quota for this facility is 22,679 kg (50,000 lbs.) of trout annually. All fish produced are released into reservation waters, including boundary waters in an effort to provide a successful subsistence/recreational fishery for Colville Tribal members and provide for a successful nonmember sport fishery. The majority of the fish distributed from the facility are intended to support &apos