28 research outputs found

    Generating reusable visual notations using model transformation

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    Visual notations are a key aspect of visual languages. They provide a direct mapping between the intended information and set of graphical symbols. Visual notations are most often implemented using the low level syntax of programming languages which is time consuming, error prone, difficult to maintain and hardly human-centric. In this paper we describe an alternative approach to generating visual notations using byexample model transformations. In our new approach, a semantic mapping between model and view is implemented using model transformations. The notations resulting from this approach can be reused by mapping varieties of input data to their model and can be composed into different visualisations. Our approach is implemented in the CONVErT framework and has been applied to many visualisation examples. Two case studies for visualising statistical charts and visualisation of traffic data are presented in this paper. A detailed user study of our approach for reusing notations and generating visualisations has been provided that shows good reusability and general acceptance of the novel approach

    Hub Map: A new approach for visualizing traffic data sets with multi-attribute link data

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    Visualizing road traffic datasets involves representing junctions, their links, and the attributes of those links. Current traffic visualization techniques are not sufficient for professional traffic engineers, as they are limited in the number of attributes that can be represented. This paper proposes a new approach to visualize multiple attributes on graph edges without compromising their visibility. In particular, we introduce a parameterized connector symbol that increases the number of attributes that can be displayed on graph edges. We demonstrate that our approach can significantly increase the number of traffic parameters that can be displayed compared to existing traffic visualizations

    Survey on electric and magnetic fields hp and Lenovo laptops in the vicinity of internet-connected smart phones

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    Nowadays exposure to electromagnetic fields, emitted from electronic devices, especially laptops and mobile phones is inevitable due to their portability. Exposure to electromagnetic fields causes harmful effects on human health. Today, most people are exposed to these fields while using their mobiles or laptops. In this cross-sectional study, the electric and magnetic fields of HP and Lenovo laptops are measured in the vicinity of 3G internet-connected Samsung smart phones at a distance of 30 and 45 cm in front of laptops. The mean electric field in the vicinity of the smartphone at a distance of 30 cm for HP and Lenovo laptops was 0.11v/m and 0.06 v/m and the mean magnetic field was 1.69 mG and 1.43 mG, respectively. The domain of electric and magnetic fields were ND-0.17 v/m and 0.3-2.4 mG, respectively. The mean electric field for HP and Lenovo laptops in the vicinity of the smartphone, at a distance of 45 cm, was 0.10 v/m and 0.06 v/m, respectively and the mean magnetic field was 1.32 mG and 1.16 mG. The mean of SAR, for HP and Lenovo laptops, in the vicinity of mobile phones, at a distance of 30 cm was 19×10-6w/kgand 5×10-6w/kg and at a distance of45 cm, was 17×10-6w/kgand 5×10-6w/kg. The Electric and magnetic field as well as SAR were less than standard. HP laptops magnetic field was significantly more than the Lenovo laptops. Unlike Lenovo laptops, electric and magnetic fields of HP laptops, in the vicinity of mobile phones, was significantly higher than the absence of mobile phones. Putting the internet-connected smart phones in the vicinity of HP laptops (significantly) and Lenovo laptops (insignificantly) increases the of electric and magnetic fields. © 2016, International Journal of Pharmacy and Technology. All rights reserved

    Generating Reusable Visual Notations using Model Transformation

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    Generating Reusable Visual Notations using Model Transformatio

    Assessment of concentration of radon 222 and effective dose; Bandar Abbas city (Iran) citizens exposed through drinking tap water

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    Radon 222 is a natural radioactive element with 3.825 days half-life. 222Rnis colorless and odorless with high solubility in water. The presence of 222Rnin drinking water can lead to lung or stomach cancers through chronic exposure per inhalation or ingestion. Different age groups have different sensitivity to the health effects of 222Radon. In this cross-sectional study, the concentration of 222Rnin the 8 regions of Bandar Abbas city in 48 samples of tap water was measured by portable Radon meter RTM1688-2 model on June 2015. The effective dose by tap water was also calculated in different age groups through UNSCEAR equation. The range and mean concentration of 222Rnis 0.87-0.384 Bq/l and 0.232±0.7 Bq/l, respectively. The mean of the effective dose of exposure for the age groups was 0.0024±0.0007, 0.0018±0.0005, 0.0007±0.0002 and 0.001±0.0003 m Sv/y, respectively for adult males, adult females, children and infants. The magnitude’s order of measured doses of studied age groups was: adult males>adult females>infants>children. The effective doses, ingested by all groups, are less than the standard limits particularly for children (p value<0.001).The results of this research shows that 222Rn concentration in the tap water of Bandar Abbas city is lower than WHO, EU and EPA standard limits (p value<0.001). Also the effective 222Rn doses in the all age groups are much lower than standard limits. Given the daily high consumption of water, adult males between the Bandar Abbas citizens showed the highest sensitivity to the 222Rn health hazard. © 2016, International Journal of Pharmacy and Technology. All rights reserved

    Effects of Electromagnetic Wave from Mobile Phones on Human Sperm Motility and Viability: A Systematic Review and Meta-Analysis

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    Nowadays humans are constantly exposed to electromagnetic wave (EMW), especially mobile phone. Recently concerns about the potential risks of EMW it's increasing. A possible risk of the EMW is adverse effect on human semen quality. In this study, it was tried to do meta-analysis on the results obtaining the evaluation of sperm quality (motility and viability) after in vitro exposure to EMW of mobile phone. We carried out a Systematic Review in databases of ISI, Pubmed, Scopus, Ovid, Embase and VIP till December 2015. Then was performed meta-analysis of data extracted by comprehensive meta-analysis 2.2 software. Finally, 10 studies 8: sperm motility (17 subgroups), 6: sperm viability (6 subgroups) were reviewed and meta-analysis was done. The percentage ranges of sperm motility in the unexposed and exposed samples were 17.70 +/- 10.9% to 87.20 +/- 7.32% and 18.40 +/- 11.90% to 87.5 +/- 8.57%, respectively. The mean differences for sperm motility and heterogeneity were REM:-4.57; CI(-7.11 to 2.03) and I-2=69.38%; rho(heterogeneity) <0.001, respectively. The percentage range of sperm viability in the unexposed and exposed samples were 50.78 +/- 5.98% to 90.9 +/- 3.7% and 48.43 +/- 13.99 to 90.4 +/- 4.1% respectively and for sperm viability, the mean differences for sperm motility and heterogeneity were REM-1.19; CI (-2.04 to -0.34) and I-2 = 96.9%; rho(heterogeneity) <0.001, respectively. Exposure to EMW of mobile phone decreased significantly sperm motility and sperm viability decreased but not-significantly. Results of this study supported the negative effects of EMW of mobile phone on the sperm motilit

    Generating Reusable Visual Notations Using Model Transformation

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    Association between tea consumption with risk of type 2 diabetes; Systematic review and meta-analysis of 14 cohort studies update to June 2016

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    The prevalence of the metabolic disease of diabetes type 2 is increasing day by day. A part of this increasing trend is related to environmental factors such as dietary habits. In various studies, contradictory results regarding the effects of tea consumption on the risk of diabetes type 2 have been observed. Therefore, by a systematic review of databases SID, Irandoc, Scopus, Pubmed and ISI Web of Science and meta-analysis of data, in this article we tried to investigate the relationship between the tea consumption and diabetes type 2. In general, from between 12 articles 14 cohort studies meta-analyzed in the range of 2004 to 2015. All participants and their mean age were respectively 94 248 participants (36,653 patients and 589,783 control) and 57.3 year. The studies of >1 cup per day and ≥4 cup per day are of low heterogeneity and 1-3 cup per day is of high heterogeneity. The mean of risk ratio was as follows: >1 cup: FEM = 0.99; 95 CI (0.95- 1.03), 1-3 cup per day: REM = 0.98, 95 CI (0.94-1.02), ≥4 cup per day: FEM = 0.94; 95 CI (0.86-1.02). In general, FEM= 0.98, 95 CI (0.95-1.01). Consumption of ≥4 cup per day in relation to per day >1 cup and 1-3 cup per day decreases the risk of diabetes non-significantly 6. The results of this study supported the reduction of risk of diabetes type 2 due to consumption of tea. © 2016, International Journal of Pharmacy and Technology. All rights reserved
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