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- IJERPH, Vol. 9, Pages 3286-3287: Helmet Use and Associated Factors among Thai Motorcyclists during Songkran Festival
- Sensors, Vol. 12, Pages 12361-12373: Pt-TiO2/MWCNTs Hybrid Composites for Monitoring Low Hydrogen Concentrations in Air
- Sensors, Vol. 12, Pages 12347-12360: Multiple Applications of Alamar Blue as an Indicator of Metabolic Function and Cellular Health in Cell Viability Bioassays
- Sensors, Vol. 12, Pages 12329-12346: The Effect of the Thickness of the Sensitive Layer on the Performance of the Accumulating NOx Sensor
- Sensors, Vol. 12, Pages 12317-12328: Surface Modification on Acoustic Wave Biosensors for Enhanced Specificity
- Remote Sensing, Vol. 4, Pages 2595-2618: Overcoming Limitations with Landsat Imagery for Mapping of Peat Swamp Forests in Sundaland
- Super Awesome Truck 2
- Remote Sensing, Vol. 4, Pages 2576-2594: Discrimination of Switchgrass Cultivars and Nitrogen Treatments Using Pigment Profiles and Hyperspectral Leaf Reflectance Data
- Applied Sciences, Vol. 2, Pages 669-681: Non-Stoichiometry and Calphad Modeling of Frank-Kasper Phases
- Energies, Vol. 5, Pages 3492-3525: Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects
- Energies, Vol. 5, Pages 3479-3491: Experimental Study on Frost Height of Round Plate Fin-Tube Heat Exchangers for Mobile Heat Pumps
- Nuclear Gun
- Sticky Linky
- Sudoku of the day for September 10
- Google Music Manager 1.0.43.6722 - Official Google Music upload tool; store 20,000 songs for free.. (Free)
- iFFmpeg 3.2 - Convert multimedia files between formats.. (Shareware)
- Attachment Tamer 3.1.7 - Take control of attachments in Apple Mail.. (Shareware)
- Exploring Halo 4's e-sports side with Frank O'Connor
- Tekken Tag Tournament 2 Interview with Katsuhiro Harada
- Xbox Singapore Media Showcase Wrap-Up
| Posted: 10 Sep 2012 12:00 AM PDT The aim of this study was to assess helmet use and associated factors among motorcycle riders during Songkran festival in Thailand. A cross-sectional survey was conducted to determine the prevalence of helmet use among Thai motorcycle riders (sample size = 18,998) during four days of the Songkran festival. For this sample, the population of motorcycle riders was consecutively selected using quota sampling from 12 petrol stations in four provinces from each of the four main geographical regions of Thailand. The study was conducted at petrol stations at roads in town, outside town and highway at different time intervals when trained field staff administered a structured questionnaire and performed an observation checklist. Results indicate that 44.2% of the motorcycle riders and 72.5% of the motorcycle passengers had not been using a helmet. In multivariable analysis demographics, environmental factors, helmet use experiences and attitudes and recalling a lower exposure to road safety awareness (RSA) campaign were associated with non-helmet use among motorcyclists. It appears that the RSA campaign may have some positive effect on reducing non-helmet use among motorcycle riders during the Songkran festival. |
| Posted: 10 Sep 2012 12:00 AM PDT Hydrogen is a valuable fuel for the next energy scenario. Unfortunately, hydrogen is highly flammable at concentrations higher than 4% in air. This aspect makes the monitoring of H2 leaks an essential issue for safety reasons, especially in the transportation field. In this paper, nanocomposites based on Pt-doped TiO2/multiwalled carbon nanotubes (MWCNTs) have been introduced as sensitive materials for H2 at low temperatures. Pt-TiO2/MWNTs nanocomposites with different composition have been prepared by a simple wet chemical procedure and their morphological, microstructural and electrical properties were investigated. Resistive thick-film devices have been fabricated printing the hybrid nanocomposites on alumina substrates provided with Pt interdigitated electrodes. Electrical tests in air have shown that embedding MWCNTs in the TiO2 matrix modify markedly the electrical conductivity, providing a means to decrease the resistance of the sensing layer. Pt acts as a catalytic additive. Pt-TiO2/MWNTs-based sensors were found to be sensitive to hydrogen at concentrations between 0.5 and 3% in air, satisfying the requisites for practical applications in hydrogen leak detection devices. |
| Posted: 10 Sep 2012 12:00 AM PDT Accurate prediction of the adverse effects of test compounds on living systems, detection of toxic thresholds, and expansion of experimental data sets to include multiple toxicity end-point analysis are required for any robust screening regime. Alamar Blue is an important redox indicator that is used to evaluate metabolic function and cellular health. The Alamar Blue bioassay has been utilized over the past 50 years to assess cell viability and cytotoxicity in a range of biological and environmental systems and in a number of cell types including bacteria, yeast, fungi, protozoa and cultured mammalian and piscine cells. It offers several advantages over other metabolic indicators and other cytotoxicity assays. However, as with any bioassay, suitability must be determined for each application and cell model. This review seeks to highlight many of the important considerations involved in assay use and design in addition to the potential pitfalls. |
| Posted: 10 Sep 2012 12:00 AM PDT A novel and promising method to measure low levels of NOx utilizes the accumulating sensor principle. During an integration cycle, incoming NOx molecules are stored in a sensitive layer based on an automotive lean NOx trap (LNT) material that changes its electrical resistivity proportional to the amount of stored NOx, making the sensor suitable for long-term detection of low levels of NOx. In this study, the influence of the thickness of the sensitive layer, prepared by multiple screen-printing, is investigated. All samples show good accumulating sensing properties for both NO and NO2. In accordance to a simplified model, the base resistance of the sensitive layer and the sensitivity to NOx decrease with increasing thickness. Contrarily, the sensor response time increases. The linear measurement range of all samples ends at a sensor response of about 30% resulting in an increase of the linearly detectable amount with the thickness. Hence, the variation of the thickness of the sensitive layer is a powerful tool to adapt the linear measurement range (proportional to the thickness) as well as the sensitivity (proportional to the inverse thickness) to the application requirements. Calculations combining the sensor model with the measurement results indicate that for operation in the linear range, about 3% of the LNT material is converted to nitrate. |
| Posted: 10 Sep 2012 12:00 AM PDT Changes in mass loading on the surface of acoustic biosensors result in output frequency shifts which provide precise measurements of analytes. Therefore, to detect a particular biomarker, the sensor delay path must be judiciously designed to maximize sensitivity and specificity. B-cell lymphoma 2 protein (Bcl-2) found in urine is under investigation as a biomarker for non-invasive early detection of ovarian cancer. In this study, surface chemistry and biofunctionalization approaches were evaluated for their effectiveness in presenting antibodies for Bcl-2 capture while minimizing non-specific protein adsorption. The optimal combination of sequentially adsorbing protein A/G, anti-Bcl-2 IgG and Pluronic F127 onto a hydrophobic surface provided the greatest signal-to-noise ratio and enabled the reliable detection of Bcl-2 concentrations below that previously identified for early stage ovarian cancer as characterized by a modified ELISA method. Finally, the optimal surface modification was applied to a prototype acoustic device and the frequency shift for a range of Bcl-2 concentration was quantified to demonstrate the effectiveness in surface acoustic wave (SAW)-based detection applications. The surface functionalization approaches demonstrated here to specifically and sensitively detect Bcl-2 in a working ultrasonic MEMS biosensor prototype can easily be modified to detect additional biomarkers and enhance other acoustic biosensors. |
| Posted: 10 Sep 2012 12:00 AM PDT Landsat can be used to map tropical forest cover at 15–60 m resolution, which is helpful for detecting small but important perturbations in increasingly fragmented forests. However, among the remaining Landsat satellites, Landsat-5 no longer has global coverage and, since 2003, a mechanical fault in the Scan-Line Corrector (SLC-Off) of the Landsat-7 satellite resulted in a 22–25% data loss in each image. Such issues challenge the use of Landsat for wall-to-wall mapping of tropical forests, and encourage the use of alternative, spatially coarser imagery such as MODIS. Here, we describe and test an alternative method of post-classification compositing of Landsat images for mapping over 20.5 million hectares of peat swamp forest in the biodiversity hotspot of Sundaland. In order to reduce missing data to levels comparable to those prior to the SLC-Off error, we found that, for a combination of Landsat-5 images and SLC-off Landsat-7 images used to create a 2005 composite, 86% of the 58 scenes required one or two images, while 14% required three or more images. For a 2010 composite made using only SLC-Off Landsat-7 images, 64% of the scenes required one or two images and 36% required four or more images. Missing-data levels due to cloud cover and shadows in the pre SLC-Off composites (7.8% and 10.3% for 1990 and 2000 enhanced GeoCover mosaics) are comparable to the post SLC-Off composites (8.2% and 8.3% in the 2005 and 2010 composites). The area-weighted producer's accuracy for our 2000, 2005 and 2010 composites were 77%, 85% and 86% respectively. Overall, these results show that missing-data levels, classification accuracy, and geographic coverage of Landsat composites are comparable across a 20-year period despite the SLC-Off error since 2003. Correspondingly, Landsat still provides an appreciable utility for monitoring tropical forests, particularly in Sundaland's rapidly disappearing peat swamp forests. |
| Posted: 10 Sep 2012 02:45 AM PDT Drive this Super Awesome Truck over this rough terrain and collect as many stars as possible |
| Posted: 10 Sep 2012 12:00 AM PDT The objective of this study was to compare the use of hyperspectral narrowbands, hyperspectral narrowband indices and pigment measurements collected from switchgrass leaf as potential tools for discriminating among twelve switchgrass cultivars and five N treatments in one cultivar (Alamo). Hyperspectral reflectance, UV-B absorbing compounds, photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids) of the uppermost fully expanded leaves were determined at monthly intervals from May to September. Leaf hyperspectral data was collected using ASD FieldSpec FR spectroradiometer (350–2,500 nm). Discrimination of the cultivars and N treatments were determined based on Principal Component Analysis (PCA) and linear discriminant analysis (DA). The stepwise discriminant analysis was used to determine the best indices that differentiate switchgrass cultivars and nitrogen treatments. Results of PCA showed 62% of the variability could be explained in PC1 dominated by middle infrared wavebands, over 20% in PC2 dominated by near infrared wavebands and just over 10% in PC3 dominated by green wavebands for separating both cultivars and N treatments. Discriminating among the cultivars resulted in an overall accuracy of 81% with the first five PCs in the month of September, but was less accurate (27%) in classifying N treatments using the spectral data. Discrimination based on pigment data using the first two PCs resulted in an overall accuracy of less than 10% for separating switchgrass cultivars , but was more accurate (47%) in grouping N treatments. The plant senescence ratio index (PSRI) was found to be the best index for separating the cultivars late in the season, while the transform chlorophyll absorption ration index (TCARI) was best for separating the N treatments. Leaf spectra data was found to be more useful than pigment data for the discrimination of switchgrass cultivars, particularly late in the growing season. |
| Posted: 10 Sep 2012 12:00 AM PDT One of the many singularities of Frank-Kasper phases is their ability to accommodate extremely large composition ranges by atom mixing on the different sites of the crystal structures. This phenomenon will be reviewed in the present paper with special emphasis on the experimental demonstration of this phenomenon, the theoretical calculation of disordered structures and the modeling of these phases. |
| Posted: 10 Sep 2012 12:00 AM PDT Cheese whey utilization is of major concern nowadays. Its high organic matter content, in combination with the high volumes produced and limited treatment options make cheese whey a serious environmental problem. However, the potential production of biogas (methane), hydrogen or other marketable products with a simultaneous high COD reduction through appropriate treatment proves that cheese whey must be considered as an energy resource rather than a pollutant. The presence of biodegradable components in the cheese whey coupled with the advantages of anaerobic digestion processes over other treatment methods makes anaerobic digestion an attractive and suitable treatment option. This paper intends to review the most representative applications of anaerobic treatment of cheese whey currently being exploited and under research. Moreover, an effort has been made to categorize the common characteristics of the various research efforts and find a comparative basis, as far as their results are concerned. In addition, a number of dairy industries already using such anaerobic digestion systems are presented. |
| Posted: 10 Sep 2012 12:00 AM PDT The objective of this study was to provide experimental data that could be used to predict frost growth and frost performance of a round plate fin-tube heat exchanger for low temperature heat pumps used in zero emission vehicles under cold weather conditions. In this study, round plate fin-tube heat exchangers were tested with variation of the fin space, air flow rate, relative humidity, and inlet air temperature. Frost height was measured and considered with the boundary layer interruption between fins. Frost height for 8.0 mm of fin space was increased by approximately 91.9% with an increase of relative humidity from 50.0% to 80.0%. The growth rate of frost height at 1.2 m3/min was observed to be 13.0% greater than that at 0.8 m3/min. Finally, the variation of the blockage ratio with fin space would be an important reference for designing advanced heat exchangers that operate under cold weather conditions. |
| Posted: 09 Sep 2012 10:51 PM PDT  Control a deadly nuclear gun and spread mayhem and chaos upon your enemies. Anyone that comes close will be vaporized! |
| Posted: 09 Sep 2012 10:47 PM PDT  Click on the blocks in order to link related creatures. Combine 5 or more for special blob evolution! |
| Sudoku of the day for September 10 Posted: 09 Sep 2012 10:54 PM PDT How to Play Fill in each square with a number so that each row , column and block contains 1 to 9. Each row, column, and 3 x 3 block must contain only one instance of each number. |
| Posted: 09 Sep 2012 08:59 PM PDT  Google Music Manager lets you add songs from your computer to the Google Music service (also known as Google Play, or play.google.com). The software resides in your Mac's menu bar and in System Preferences. Version 1.0.43.6722: Release notes were unavailable when this listing was updated. Mac OS X 10.5 or later Download Now |
| iFFmpeg 3.2 - Convert multimedia files between formats.. (Shareware) Posted: 09 Sep 2012 08:59 PM PDT  iFFmpeg is a graphical front-end for FFmpeg, a command-line tool used to convert multimedia files between formats. The command line instructions can be very hard to master/understand, so iFFmpeg does all the hard work for you. This allows you to use FFmpeg without detailed command-line knowledge. Version 3.2:
Download Now This posting includes an audio/video/photo media file: Download Now |
| Attachment Tamer 3.1.7 - Take control of attachments in Apple Mail.. (Shareware) Posted: 09 Sep 2012 08:59 PM PDT  Attachment Tamer gives you control over attachment handling in Apple Mail. It fixes the most annoying Apple Mail flaws, ensures compatibility with other email software, and allows you to set up how attachments are displayed and sent. Attachment Tamer can:
Attachment Tamer is a free update for all registered users of Mail Attachments Iconizer, and provides all the functionality that Iconizer has provided. Version 3.1.7
Mac OS X 10.5 or later Download Now This posting includes an audio/video/photo media file: Download Now |
| Exploring Halo 4's e-sports side with Frank O'Connor Posted: 09 Sep 2012 08:00 PM PDT We talk to 343 Industries and Halo's development director about Halo 4 in e-sports, music, and the Prometheans' behaviour.
Get the full article at GameSpot "Exploring Halo 4's e-sports side with Frank O'Connor" was posted by Jonathan Toyad on Sun, 09 Sep 2012 20:00:33 -0700 |
| Tekken Tag Tournament 2 Interview with Katsuhiro Harada Posted: 09 Sep 2012 06:39 PM PDT GameSpot sits down for another chat with the father of Tekken to discuss why they brought back Tag, how they approach game balancing and how he got into the video game industry. Read and Post Comments | Get the full article at GameSpot "Tekken Tag Tournament 2 Interview with Katsuhiro Harada" was posted by edmondt on Sun, 09 Sep 2012 18:39:32 -0700 |
| Xbox Singapore Media Showcase Wrap-Up Posted: 09 Sep 2012 05:25 PM PDT GameSpot Asia's Randolph Ramsay and Jonathan Toyad dish out their two cents on the recent Xbox Singapore media showcase, featuring Resident Evil 6, Black Ops II, Dead or Alive 5, Halo 4 and Dance Central 3.
Read and Post Comments | Get the full article at GameSpot "Xbox Singapore Media Showcase Wrap-Up" was posted by edmondt on Sun, 09 Sep 2012 17:25:34 -0700 |
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