Wakata performs microscopic analysis of the NanoRacks Module-38 Petri Dishes

NASA Image and Video Library

2014-01-13

ISS038-E-029082 (12 Jan. 2014) --- Japan Aerospace Exploration Agency astronaut Koichi Wakata, Expedition 38 flight engineer, performs microscopic analysis of the NanoRacks Module-38 Petri Dishes, using Celestron Reflective Microscope, in the Kibo laboratory of the International Space Station. These Module-38 experiments are designed by students as part of a competition sponsored by the International Space School Educational Trust (ISSET). This experiment examines three-dimensional growth of slime mold in petri dishes utilizing the NanoRacks Microscopes Facility.

NanoRacks CubeSat Deployment

NASA Image and Video Library

2014-02-11

ISS038-E-045009 (11 Feb. 2014) --- The Small Satellite Orbital Deployer (SSOD), in the grasp of the Kibo laboratory robotic arm, is photographed by an Expedition 38 crew member on the International Space Station as it deploys a set of NanoRacks CubeSats. The CubeSats program contains a variety of experiments such as Earth observations and advanced electronics testing. Station solar array panels, Earth's horizon and the blackness of space provide the backdrop for the scene.

Nanoracks CUBESAT launcher operations

NASA Image and Video Library

2014-08-19

ISS040-E-103545 (19 Aug. 2014) --- In the grasp of the Japanese robotic arm, the CubeSat deployer (mostly out of frame, upper right) releases a pair of NanoRacks CubeSat miniature satellites (center). The Planet Labs Dove satellites that were carried to the International Space Station aboard the Orbital Sciences Cygnus commercial cargo craft are being deployed between Aug. 19 and Aug. 25. A section of the station solar array wings is at top right. A blue and white part of Earth and the blackness of space provide the backdrop for the scene.

Development of an automated MODS plate reader to detect early growth of Mycobacterium tuberculosis.

PubMed

Comina, G; Mendoza, D; Velazco, A; Coronel, J; Sheen, P; Gilman, R H; Moore, D A J; Zimic, M

2011-06-01

In this work, an automated microscopic observation drug susceptibility (MODS) plate reader has been developed. The reader automatically handles MODS plates and after autofocussing digital images are acquired of the characteristic microscopic cording structures of Mycobacterium tuberculosis, which are the identification method utilized in the MODS technique to detect tuberculosis and multidrug resistant tuberculosis. In conventional MODS, trained technicians manually move the MODS plate on the stage of an inverted microscope while trying to locate and focus upon the characteristic microscopic cording colonies. In centres with high tuberculosis diagnostic demand, sufficient time may not be available to adequately examine all cultures. An automated reader would reduce labour time and the handling of M. tuberculosis cultures by laboratory personnel. Two hundred MODS culture images (100 from tuberculosis positive and 100 from tuberculosis negative sputum samples confirmed by a standard MODS reading using a commercial microscope) were acquired randomly using the automated MODS plate reader. A specialist analysed these digital images with the help of a personal computer and designated them as M. tuberculosis present or absent. The specialist considered four images insufficiently clear to permit a definitive reading. The readings from the 196 valid images resulted in a 100% agreement with the conventional nonautomated standard reading. The automated MODS plate reader combined with open-source MODS pattern recognition software provides a novel platform for high throughput automated tuberculosis diagnosis. © 2011 The Authors Journal of Microscopy © 2011 Royal Microscopical Society.

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, preparations are underway to install the Nanoracks on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians begin the process to install several Nanoracks on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare several Nanoracks for installation on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have installed several Nanoracks on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare thermal blankets for several Nanoracks that will be installed on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to install several Nanoracks on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

76 FR 60531 - National Institute of Justice Interview Room Recording Systems and License Plate Readers Workshop

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-29

... Justice Interview Room Recording Systems and License Plate Readers Workshop AGENCY: National Institute of Justice. ACTION: Notice of the Interview Room Recording Systems and License Plate Readers Workshops.... The focus of the workshops is the development of NIJ performance standards for Interview Room...

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians install thermal blankets around the area where several Nanoracks will be installed on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

OA-7 Nano-rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, a technician adjusts the thermal blankets around the area where several Nanoracks will be installed on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Automatic license plate reader: a solution to avoiding vehicle pursuit

NASA Astrophysics Data System (ADS)

Jordan, Stanley K.

1997-01-01

The Massachusetts Governor's Auto Theft Strike Force has tested an automatic license plate reader (LPR) to recover stolen cars and catch car thieves, without vehicle pursuit. Experiments were conducted at the Sumner Tunnel in Boston, and proved the feasibility of a LPR for identifying stolen cars instantly. The same technology can be applied to other law-enforcement objectives.

OA-7 CYGNUS Processing Activities: Nano-Rack Installation

NASA Image and Video Library

2017-02-27

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians install several Nanoracks on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Use of a Fluorometric Imaging Plate Reader in high-throughput screening

NASA Astrophysics Data System (ADS)

Groebe, Duncan R.; Gopalakrishnan, Sujatha; Hahn, Holly; Warrior, Usha; Traphagen, Linda; Burns, David J.

1999-04-01

High-throughput screening (HTS) efforts at Abbott Laboratories have been greatly facilitated by the use of a Fluorometric Imaging Plate Reader. The FLIPR consists of an incubated cabinet with integrated 96-channel pipettor and fluorometer. An argon laser is used to excite fluorophores in a 96-well microtiter plate and the emitted fluorometer. An argon laser is used to excite fluorophores in a 96-well microtiter plate and the emitted fluorescence is imaged by a cooled CCD camera. The image data is downloaded from the camera and processed to average the signal form each well of the microtiter pate for each time point. The data is presented in real time on the computer screen, facilitating interpretation and trouble-shooting. In addition to fluorescence, the camera can also detect luminescence form firefly luciferase.

77 FR 58580 - Interview Room Recording System Standard and License Plate Reader Standard Workshops

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-21

... DEPARTMENT OF JUSTICE Office of Justice Programs [OJP (NIJ) Docket No. 1603] Interview Room Recording System Standard and License Plate Reader Standard Workshops AGENCY: National Institute of Justice, DOJ. [[Page 58581

Fluorescence lifetime plate reader: Resolution and precision meet high-throughput

PubMed Central

Petersen, Karl J.; Peterson, Kurt C.; Muretta, Joseph M.; Higgins, Sutton E.; Gillispie, Gregory D.; Thomas, David D.

2014-01-01

We describe a nanosecond time-resolved fluorescence spectrometer that acquires fluorescence decay waveforms from each well of a 384-well microplate in 3 min with signal-to-noise exceeding 400 using direct waveform recording. The instrument combines high-energy pulsed laser sources (5–10 kHz repetition rate) with a photomultiplier and high-speed digitizer (1 GHz) to record a fluorescence decay waveform after each pulse. Waveforms acquired from rhodamine or 5-((2-aminoethyl)amino) naphthalene-1-sulfonic acid dyes in a 384-well plate gave lifetime measurements 5- to 25-fold more precise than the simultaneous intensity measurements. Lifetimes as short as 0.04 ns were acquired by interleaving with an effective sample rate of 5 GHz. Lifetime measurements resolved mixtures of single-exponential dyes with better than 1% accuracy. The fluorescence lifetime plate reader enables multiple-well fluorescence lifetime measurements with an acquisition time of 0.5 s per well, suitable for high-throughput fluorescence lifetime screening applications. PMID:25430092

High-throughput and automated diagnosis of antimicrobial resistance using a cost-effective cellphone-based micro-plate reader

NASA Astrophysics Data System (ADS)

Feng, Steve; Tseng, Derek; di Carlo, Dino; Garner, Omai B.; Ozcan, Aydogan

2016-12-01

Routine antimicrobial susceptibility testing (AST) can prevent deaths due to bacteria and reduce the spread of multi-drug-resistance, but cannot be regularly performed in resource-limited-settings due to technological challenges, high-costs, and lack of trained professionals. We demonstrate an automated and cost-effective cellphone-based 96-well microtiter-plate (MTP) reader, capable of performing AST without the need for trained diagnosticians. Our system includes a 3D-printed smartphone attachment that holds and illuminates the MTP using a light-emitting-diode array. An inexpensive optical fiber-array enables the capture of the transmitted light of each well through the smartphone camera. A custom-designed application sends the captured image to a server to automatically determine well-turbidity, with results returned to the smartphone in ~1 minute. We tested this mobile-reader using MTPs prepared with 17 antibiotics targeting Gram-negative bacteria on clinical isolates of Klebsiella pneumoniae, containing highly-resistant antimicrobial profiles. Using 78 patient isolate test-plates, we demonstrated that our mobile-reader meets the FDA-defined AST criteria, with a well-turbidity detection accuracy of 98.21%, minimum-inhibitory-concentration accuracy of 95.12%, and a drug-susceptibility interpretation accuracy of 99.23%, with no very major errors. This mobile-reader could eliminate the need for trained diagnosticians to perform AST, reduce the cost-barrier for routine testing, and assist in spatio-temporal tracking of bacterial resistance.

The use of BAS-TR imaging plates calibration in determining the resolving power of Fuji BAS-1800II image plate reader

NASA Astrophysics Data System (ADS)

Alnaimi, R.

2018-01-01

The importance of this work lies in assuring the reliability of the results obtained from both imaging plates type BAS-TR and Fuji Image Reader BAS-1800II as they are widely used in calculating essential x-ray sources parameters such as the source size, x-ray flux and brilliance, hence, the calibration presented in this work. For such quantitative analysis, a common practice used by many researchers, where Gold resolution meshes are utilised for such purpose, however not quite successful due to the transmission effect of high energy photons at their edges as well as the pixeling effect while magnifying the scanned image to secure the edge spread function (ESF) data. In contrast, the use of resolution test target (RTT) and wire mesh grid together with a set of test samples i.e. Stanley blades, Ta, Ti and Si wafer of 100, 300, 15, and 490 micron thickness respectively appeared to be efficient in determining IP pixel size and the resolution of the reader. Two different experiments were conducted using two different targets and lasers of very different performance. The first, was a 15 μm VHS video tape composed of Mylar as carrier film with Fe2O3 and CrO2 powder. Nd:YAG laser of long pulse 800 ps, 50 Hz repetition rate and single shot were utilised. Whereas, the second experiment were conducted on a 9μm C wire and a short pulse 500fs Cerberus single shot laser was used. The results obtained from both experiments were pretty much similar. The imaging plate spatial resolution was measured to be: 3.4 ± 0.2 pixels and a pixel size of 41.26 ± 1.4 μm, whereas the smallest resolvable object visible to the reader (1:1 imaging with magnification factor) was of order 140.3 ± 0.3 microns. This appeared to be worse by a factor of three which indicates the importance of the reader's calibration on a regular basis, and at the same time one has to reconsider any related work and calculation based upon the previous nominal values.

Development of LEDs-based microplate reader for bioanalytical assay measurements

NASA Astrophysics Data System (ADS)

Alaruri, Sami D.; Katzlinger, Michael; Schinwald, Bernhard; Kronberger, Georg; Atzler, Joseph

2013-10-01

The optical design for an LEDs-based microplate reader that can perform fluorescence intensity (top and bottom), absorbance, luminescence and time-resolved fluorescence measurements is described. The microplate reader is the first microplate reader in the marketplace that incorporates LEDs as excitation light sources. Absorbance measurements over the 0-3.5 optical density range for caffeine solution are presented. Additionally, fluorescence intensity readings collected at 535 and 625 nm from a green and a red RediPlateTM are reported. Furthermore, fluorescence decay lifetime measurements obtained for Eu (europium) and Sm (samarium) standard solutions using 370 nm excitation are presented. The microplate reader detection limits for the fluorescence intensity top, fluorescence intensity bottom, fluorescence polarization and time-resolved fluorescence modes are 1.5 fmol 100 µL-1 fluorescein (384-well plate), 25 fmol 100 µL-1 fluorescein (384-well plate), 5 mP at 10 nM fluorescein (black 384-well plate) and 30 amol 100 µL-1 europium solution (white 384-well plate), respectively.

Unmixing of fluorescence spectra to resolve quantitative time-series measurements of gene expression in plate readers.

PubMed

Lichten, Catherine A; White, Rachel; Clark, Ivan B N; Swain, Peter S

2014-02-03

To connect gene expression with cellular physiology, we need to follow levels of proteins over time. Experiments typically use variants of Green Fluorescent Protein (GFP), and time-series measurements require specialist expertise if single cells are to be followed. Fluorescence plate readers, however, a standard in many laboratories, can in principle provide similar data, albeit at a mean, population level. Nevertheless, extracting the average fluorescence per cell is challenging because autofluorescence can be substantial. Here we propose a general method for correcting plate reader measurements of fluorescent proteins that uses spectral unmixing and determines both the fluorescence per cell and the errors on that fluorescence. Combined with strain collections, such as the GFP fusion collection for budding yeast, our methodology allows quantitative measurements of protein levels of up to hundreds of genes and therefore provides complementary data to high throughput studies of transcription. We illustrate the method by following the induction of the GAL genes in Saccharomyces cerevisiae for over 20 hours in different sugars and argue that the order of appearance of the Leloir enzymes may be to reduce build-up of the toxic intermediate galactose-1-phosphate. Further, we quantify protein levels of over 40 genes, again over 20 hours, after cells experience a change in carbon source (from glycerol to glucose). Our methodology is sensitive, scalable, and should be applicable to other organisms. By allowing quantitative measurements on a per cell basis over tens of hours and over hundreds of genes, it should increase our understanding of the dynamic changes that drive cellular behaviour.

Unmixing of fluorescence spectra to resolve quantitative time-series measurements of gene expression in plate readers

PubMed Central

2014-01-01

Background To connect gene expression with cellular physiology, we need to follow levels of proteins over time. Experiments typically use variants of Green Fluorescent Protein (GFP), and time-series measurements require specialist expertise if single cells are to be followed. Fluorescence plate readers, however, a standard in many laboratories, can in principle provide similar data, albeit at a mean, population level. Nevertheless, extracting the average fluorescence per cell is challenging because autofluorescence can be substantial. Results Here we propose a general method for correcting plate reader measurements of fluorescent proteins that uses spectral unmixing and determines both the fluorescence per cell and the errors on that fluorescence. Combined with strain collections, such as the GFP fusion collection for budding yeast, our methodology allows quantitative measurements of protein levels of up to hundreds of genes and therefore provides complementary data to high throughput studies of transcription. We illustrate the method by following the induction of the GAL genes in Saccharomyces cerevisiae for over 20 hours in different sugars and argue that the order of appearance of the Leloir enzymes may be to reduce build-up of the toxic intermediate galactose-1-phosphate. Further, we quantify protein levels of over 40 genes, again over 20 hours, after cells experience a change in carbon source (from glycerol to glucose). Conclusions Our methodology is sensitive, scalable, and should be applicable to other organisms. By allowing quantitative measurements on a per cell basis over tens of hours and over hundreds of genes, it should increase our understanding of the dynamic changes that drive cellular behaviour. PMID:24495318

An automated wide-field time-gated optically sectioning fluorescence lifetime imaging multiwell plate reader for high-content analysis of protein-protein interactions

NASA Astrophysics Data System (ADS)

Alibhai, Dominic; Kumar, Sunil; Kelly, Douglas; Warren, Sean; Alexandrov, Yuriy; Munro, Ian; McGinty, James; Talbot, Clifford; Murray, Edward J.; Stuhmeier, Frank; Neil, Mark A. A.; Dunsby, Chris; French, Paul M. W.

2011-03-01

We describe an optically-sectioned FLIM multiwell plate reader that combines Nipkow microscopy with wide-field time-gated FLIM, and its application to high content analysis of FRET. The system acquires sectioned FLIM images in <10 s/well, requiring only ~11 minutes to read a 96 well plate of live cells expressing fluorescent protein. It has been applied to study the formation of immature HIV virus like particles (VLPs) in live cells by monitoring Gag-Gag protein interactions using FLIM FRET of HIV-1 Gag transfected with CFP or YFP. VLP formation results in FRET between closely packed Gag proteins, as confirmed by our FLIM analysis that includes automatic image segmentation.

Paper microzone plates.

PubMed

Carrilho, Emanuel; Phillips, Scott T; Vella, Sarah J; Martinez, Andres W; Whitesides, George M

2009-08-01

This paper describes 96- and 384-microzone plates fabricated in paper as alternatives to conventional multiwell plates fabricated in molded polymers. Paper-based plates are functionally related to plastic well plates, but they offer new capabilities. For example, paper-microzone plates are thin (approximately 180 microm), require small volumes of sample (5 microL per zone), and can be manufactured from inexpensive materials ($0.05 per plate). The paper-based plates are fabricated by patterning sheets of paper, using photolithography, into hydrophilic zones surrounded by hydrophobic polymeric barriers. This photolithography used an inexpensive formulation photoresist that allows rapid (approximately 15 min) prototyping of paper-based plates. These plates are compatible with conventional microplate readers for quantitative absorbance and fluorescence measurements. The limit of detection per zone loaded for fluorescence was 125 fmol for fluorescein isothiocyanate-labeled bovine serum albumin, and this level corresponds to 0.02 the quantity of analyte per well used to achieve comparable signal-to-noise in a 96-well plastic plate (using a solution of 25 nM labeled protein). The limits of detection for absorbance on paper was approximately 50 pmol per zone for both Coomassie Brilliant Blue and Amaranth dyes; these values were 0.4 that required for the plastic plate. Demonstration of quantitative colorimetric correlations using a scanner or camera to image the zones and to measure the intensity of color, makes it possible to conduct assays without a microplate reader.

A comparative analysis of standard microtiter plate reading versus imaging in cellular assays.

PubMed

Bushway, Paul J; Mercola, Mark; Price, Jeffrey H

2008-08-01

We evaluated the performance of two plate readers (the Beckman Coulter [Fullerton, CA] DTX and the PerkinElmer [Wellesley, MA] EnVision) and a plate imager (the General Electric [Fairfield, CT] IN Cell 1000 Analyzer) in a primary fluorescent cellular screen of 10,000 Molecular Libraries Screening Center Network library compounds for up- and down-regulation of vascular cell adhesion molecule (VCAM)-1, which has been shown to be up-regulated in atherothrombotic vascular disease and is a general indicator of chronic inflammatory disease. Prior to screening, imaging of a twofold, six-step titration of fluorescent cells in a 384-well test plate showed greater consistency, sensitivity, and dynamic range of signal detection curves throughout the detection range, as compared to the plate readers. With the same 384-well test plate, the detection limits for fluorescent protein-labeled cells on the DTX and EnVision instruments were 2,250 and 560 fluorescent cells per well, respectively, as compared to 280 on the IN Cell 1000. During VCAM screening, sensitivity was critical for detection of antagonists, which reduced brightness of the primary immunofluorescence readout; inhibitor controls yielded Z' values of 0.41 and 0.16 for the IN Cell 1000 and EnVision instruments, respectively. The best 1% of small molecule inhibitors from all platforms were visually confirmed using images from the IN Cell 1000. The EnVision and DTX plate readers mutually identified approximately 57% and 21%, respectively, of the VCAM-1 inhibitors visually confirmed in the IN Cell best 1% of inhibitors. Furthermore, the plate reader hits were largely exclusive, with only 6% agreement across all platforms (three hits out of 47). Taken together, the imager outperformed the plate readers at hit detection in this bimodal assay because of superior sensitivity and had the advantage of speeding hit confirmation during post-acquisition analysis.

GryphSens: A Smartphone-Based Portable Diagnostic Reader for the Rapid Detection of Progesterone in Milk

PubMed Central

Jang, Hyunwook; Ahmed, Syed Rahin; Neethirajan, Suresh

2017-01-01

Enzyme-linked immunosorbent assay (ELISA) is a popular assay technique for the detection and quantification of various biological substances due its high sensitivity and specificity. More often, it requires large and expensive laboratory instruments, which makes it difficult to conduct when the tests must be performed quickly at the point-of-care (POC). To increase portability and ease of use, we propose a portable diagnostic system based on a Raspberry Pi imaging sensor for the rapid detection of progesterone in milk samples. We designed, assembled, and tested a standalone portable diagnostic reader and validated it for progesterone detection against a standard ELISA assay using a commercial plate reader. The portable POC device yielded consistent results, regardless of differences in the cameras and flashlights between various smartphone devices. An Android application was built to provide front-end access to users, control the diagnostic reader, and display and store the progesterone measurement on the smartphone. The diagnostic reader takes images of the samples, reads the pixel values, processes the results, and presents the results on the handheld device. The proposed POC reader can perform to superior levels of performance as a plate reader, while adding the desirable qualities of portability and ease of use. PMID:28489036

GryphSens: A Smartphone-Based Portable Diagnostic Reader for the Rapid Detection of Progesterone in Milk.

PubMed

Jang, Hyunwook; Ahmed, Syed Rahin; Neethirajan, Suresh

2017-05-10

Enzyme-linked immunosorbent assay (ELISA) is a popular assay technique for the detection and quantification of various biological substances due its high sensitivity and specificity. More often, it requires large and expensive laboratory instruments, which makes it difficult to conduct when the tests must be performed quickly at the point-of-care (POC). To increase portability and ease of use, we propose a portable diagnostic system based on a Raspberry Pi imaging sensor for the rapid detection of progesterone in milk samples. We designed, assembled, and tested a standalone portable diagnostic reader and validated it for progesterone detection against a standard ELISA assay using a commercial plate reader. The portable POC device yielded consistent results, regardless of differences in the cameras and flashlights between various smartphone devices. An Android application was built to provide front-end access to users, control the diagnostic reader, and display and store the progesterone measurement on the smartphone. The diagnostic reader takes images of the samples, reads the pixel values, processes the results, and presents the results on the handheld device. The proposed POC reader can perform to superior levels of performance as a plate reader, while adding the desirable qualities of portability and ease of use.

Evaluation of the Minnesota Easy Culture System II Bi-Plate and Tri-Plate for identification of common mastitis pathogens in milk.

PubMed

Royster, E; Godden, S; Goulart, D; Dahlke, A; Rapnicki, P; Timmerman, J

2014-01-01

The objective of this study was to validate use of the Minnesota Easy Culture System II Bi-Plate and Tri-Plate (University of Minnesota Laboratory for Udder Health, St. Paul) to identify common mastitis pathogens in milk. A total of 283 quarter and composite milk samples submitted to the University of Minnesota Laboratory for Udder Health during the spring of 2010 were cultured simultaneously using 3 methods: standard laboratory culture (reference method) and the Minnesota Easy Culture System II Bi-Plate and Tri-Plate methods. Bi-Plate and Tri-Plate cultures were incubated for 18 to 24h and interpreted by 2 independent, untrained readers within 5h of each other. An experienced technician completed the standard laboratory culture. For each sample, all 3 study personnel recorded the culture result (yes/no) for each of the following diagnostic categories: no bacterial growth (NG), mixed (2 organisms), contaminated (3 or more organisms), gram-positive (GP), gram-negative (GN), Staphylococcus spp., Streptococcus spp., Streptococcus agalactiae, Streptococcus dysgalactiae, Streptococcus uberis, Enterococcus spp., Staphylococcus aureus, coagulase-negative staphylococci, Escherichia coli, Klebsiella spp., and other. For each category, the prevalence, sensitivity, specificity, accuracy, and predictive values of a positive and negative test were calculated, and the agreement between readers and between each reader and the laboratory was assessed. Specificity, overall accuracy, and negative predictive values were generally high (>80%) for the Bi-Plate and Tri-Plate for each category. Sensitivity and positive predictive values were intermediate (>60%) or high (>80%) for the broad categories of NG, GP, GN, Staphylococcus spp. and Streptococcus spp., and for Staph. aureus, but were generally lower (<60%) for other more specific categories. Similarly, interreader agreement (kappa value) was moderate to substantial (40-80%) for the broad categories of NG, GP, GN, Staphylococcus spp

Readers' Readings: Applications of Reader-Response Theory.

ERIC Educational Resources Information Center

Steiner, Linda

In the interest of applying reader response theory to journalism this paper posits that readers of newspapers, like readers of literature, take an active role in making meaning from the articles they read, rather than passively accepting news as a finished, static product. Additionally, it proposes that journalism textbooks pay little attention to…

NaturalReader: A New Generation Text Reader

ERIC Educational Resources Information Center

Flood, Jacqueline

2007-01-01

NaturalReader (http://www.naturalreaders.com/) is a new generation text reader, which means that it reads any machine readable text using synthesized speech without having to copy and paste the selected text into the NaturalReader application window. It installs a toolbar directly into all of the Microsoft Office[TM] programs and uses a mini-board…

78 FR 57215 - Waiver of Requirement To Enter Into a Reciprocal Waiver of Claims Agreement With All Customers...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-17

... NanoRacks, LLC, and NanoRacks locker insert and student experiments created under NASA's Student..., and mathematics education initiative.\\2\\ According to its Space Act Agreement with NASA,\\3\\ NanoRacks... opportunities to NanoRacks for the launch of its insert and the experiments the insert carries. Orbital provided...

What Can Readers Read after Graded Readers?

ERIC Educational Resources Information Center

McQuillan, Jeff

2016-01-01

Nation (2014) concluded that most of the vocabulary one needs to read challenging texts in English can be acquired incidentally through voluminous reading. This study examines possible texts that second language (L2) readers can use to move from controlled-vocabulary materials such as graded readers, which go up through approximately the…

Integrated optical sensing of dissolved oxygen in microtiter plates: a novel tool for microbial cultivation.

PubMed

John, Gernot T; Klimant, Ingo; Wittmann, Christoph; Heinzle, Elmar

2003-03-30

Microtiter plates with integrated optical sensing of dissolved oxygen were developed by immobilization of two fluorophores at the bottom of 96-well polystyrene microtiter plates. The oxygen-sensitive fluorophore responded to dissolved oxygen concentration, whereas the oxygen-insensitive one served as an internal reference. The sensor measured dissolved oxygen accurately in optically well-defined media. Oxygen transfer coefficients, k(L)a, were determined by a dynamic method in a commercial microtiter plate reader with an integrated shaker. For this purpose, the dissolved oxygen was initially depleted by the addition of sodium dithionite and, by oxygen transfer from air, it increased again after complete oxidation of dithionite. k(L)a values in one commercial reader were about 10 to 40 h(-1). k(L)a values were inversely proportional to the filling volume and increased with increasing shaking intensity. Dissolved oxygen was monitored during cultivation of Corynebacterium glutamicum in another reader that allowed much higher shaking intensity. Growth rates determined from optical density measurement were identical to those observed in shaking flasks and in a stirred fermentor. Oxygen uptake rates measured in the stirred fermentor and dissolved oxygen concentrations measured during cultivation in the microtiter plate were used to estimate k(L)a values in a 96-well microtiter plate. The resulting values were about 130 h(-1), which is in the lower range of typical stirred fermentors. The resulting maximum oxygen transfer rate was 26 mM h(-1). Simulations showed that the errors caused by the intermittent measurement method were insignificant under the prevailing conditions. Copyright 2003 Wiley Periodicals, Inc. Biotechnol Bioeng 81: 829-836, 2003.

[Establishment of an in vitro screening model for steroid 5 alpha-reductase inhibitors with the microplate reader].

PubMed

Wu, Jian-Hui; Sun, Zu-Yue

2013-06-01

To establish an in vitro screening model for steroid 5 alpha-reductase inhibitors using the microplate reader. Steroid 5 alpha-reductase was obtained from the liver of female rats, an in vitro screening model for steroid 5 alpha-reductase inhibitors established using the 96-well plate and microplate reader after determination of the enzymatic activity, and the reliability of the model verified with the known 5 alpha-reductase inhibitors epristeride and finasteride. Added to the 96-well plate were the final concentrations of testosterone (0-40 micromol/L), NADPH (22 micromol/L), epristeride (0-60 nmol/L) or finasteride (0-60 nmol/ L) and steroid 5 alpha-reductase (20 microl), the total volume of each well adjusted to 200 microl with Tris-Hcl buffer. The 96-well plate was placed in the microplate reader, mixed and incubated at 37 degrees C, followed by detection of the A340nm value at 0 and 10 min and analysis of the data. The Km value of steroid 5 alpha-reductase was 3.794 micromol/L, with a Vmax of 0.271 micromol/(L. min). The Ki of epristeride was 148.2 nmol/L, with an IC50 of 31.5 nmol/L, and the enzymatic reaction kinetic curve suggested that epristeride was an uncompetitive enzyme inhibitor. The Ki of finasteride was 158. 8 nmol/L, with an IC50 of 13.6 nmol/L. The enzymatic reaction kinetic curve showed that both epristeride and finasteride were competitive enzyme inhibitors, similar to those reported in the published literature. A screening model was successfully established, which could rapidly and effectively screen steroid 5 alpha-reductase inhibitors in vitro.

Accelerated Reader.

ERIC Educational Resources Information Center

Education Commission of the States, Denver, CO.

This paper provides an overview of Accelerated Reader, a system of computerized testing and record-keeping that supplements the regular classroom reading program. Accelerated Reader's primary goal is to increase literature-based reading practice. The program offers a computer-aided reading comprehension and management program intended to motivate…

New design of a passive type RADFET reader for enhanced sensitivity

NASA Astrophysics Data System (ADS)

Lee, Dae-Hee

2016-07-01

We present a new design of a passive type RADFET reader with enhanced radiation sensitivity. Using a electostatic plate, we have applied a static electric field to the gate voltage, which impacts a positive biasing on the p-type MOSFET. The resultant effect shows that 1.8 times of radiation sensitivity increased when we measured the threshold voltage shift of the RADFET exposed to 30 krad irradiation. We discuss further about the characteristic changes of a RADFET according to the positive biasing on the gate voltage.

Cellphone-based hand-held microplate reader for point-of-care ELISA testing (Conference Presentation)

NASA Astrophysics Data System (ADS)

Berg, Brandon; Cortazar, Bingen; Tseng, Derek; Ozkan, Haydar; Feng, Steve; Wei, Qingshan; Chan, Raymond Y.; Burbano, Jordi; Farooqui, Qamar; Lewinski, Michael; Di Carlo, Dino; Garner, Omai B.; Ozcan, Aydogan

2016-03-01

Enzyme-linked immunosorbent assay (ELISA) in a microplate format has been a gold standard first-line clinical test for diagnosis of various diseases including infectious diseases. However, this technology requires a relatively large and expensive multi-well scanning spectrophotometer to read and quantify the signal from each well, hindering its implementation in resource-limited-settings. Here, we demonstrate a cost-effective and handheld smartphone-based colorimetric microplate reader for rapid digitization and quantification of immunoserology-related ELISA tests in a conventional 96-well plate format at the point of care (POC). This device consists of a bundle of 96 optical fibers to collect the transmitted light from each well of the microplate and direct all the transmission signals from the wells onto the camera of the mobile-phone. Captured images are then transmitted to a remote server through a custom-designed app, and both quantitative and qualitative diagnostic results are returned back to the user within ~1 minute per 96-well plate by using a machine learning algorithm. We tested this mobile-phone based micro-plate reader in a clinical microbiology lab using FDA-approved mumps IgG, measles IgG, and herpes simplex virus IgG (HSV-1 and HSV-2) ELISA tests on 1138 remnant patient samples (roughly 50% training and 50% testing), and achieved an overall accuracy of ~99% or higher for each ELISA test. This handheld and cost-effective platform could be immediately useful for large-scale vaccination monitoring in low-infrastructure settings, and also for other high-throughput disease screening applications at POC.

Actual Readers versus Implied Readers: Role Conflicts in Office 97.

ERIC Educational Resources Information Center

Shroyer, Roberta

2000-01-01

Explains the controversy surrounding the Office Assistant ("Paper-Clip") in Microsoft's Office 97. Discusses why actual readers rejected the default Office Assistant's role as implied writer and rebelled against the reader role implied for them. Notes users resented its intrusive behavior, rejected its implied writer role, and refused to…

Becoming a Reader: Significant Social Influences on Avid Book Readers

ERIC Educational Resources Information Center

Merga, Margaret K.

2017-01-01

Understanding how social influences can foster avid book reader identification is a key research goal that warrants further investigation beyond a limited early-years lens. The author's 2015 International Study of Avid Book Readers (ISABR) explored, as one of its key research questions, the influence positive social agents can have on avid book…

Microform Reader Maintenance.

ERIC Educational Resources Information Center

Hall, Hal W.; Michaels, George H.

1985-01-01

Describes experiences in organizing a program of microform reader and reader/printer maintenance at Texas A & M's Sterling C. Evans Library and offers guidelines for regular machine maintenance and repair. Guidelines discussed relate to maintenance philosophy, general machine cleaning, troubleshooting, service contracts, supplies,…

Three Readers, Three Languages, Three Texts: The Strategic Reading of Multilingual and Multiliterate Readers

ERIC Educational Resources Information Center

Alsheikh, Negmeldin O.

2011-01-01

This case study investigates the metacognitive reading strategies of three advanced proficient trilingual readers whose native language is Hausa. The study examines the reading strategies employed by the three readers in English, French and Hausa. The aim of the study was to compare the reading strategy profiles of trilingual readers through…

The Mountain Reader.

ERIC Educational Resources Information Center

Kimmons, Carol

Designed for use as supplemental reading, this book provides high interest reading material for beginning adult readers in rural areas of Tennessee. The book is printed in large type for readers with vision problems. Where appropriate, stories are written in a modified vernacular form. The book may be made more pertinent to geographic areas other…

Reading strategies of fast and slow readers.

PubMed

Haberlandt, K F; Graesser, A C; Schneider, N J

1989-09-01

In three subject-paced experiments we evaluated reading patterns at the word, line, and sentence level for fast and slow readers. A moving-window method was used to collect word reading times for natural texts. At the word level, reading times of word N were influenced by features of word N-1 for fast readers but not for slow readers. The lag effect exhibited by fast readers indicates that they continue to process a word when it is no longer in view, thus limiting the notion of immediate processing. Contrary to our initial expectation that fast readers would process only a single new argument from a sentence, whereas slow readers would process several new arguments, we found that both reader groups adopted a many-argument strategy. However, fast and slow readers differed in terms of the text units (lines vs. sentences) defining the new-argument effects: Fast readers exhibited greater new-argument effects relative to lines, whereas slow readers exhibited greater new-argument effects relative to sentences. Specifically, slow readers integrated the new arguments primarily at the end of the sentence, whereas fast readers did so at line boundaries. These results are discussed in terms of a buffer-and-integrate model of reading comprehension.

Cognitive Development in Early Readers.

ERIC Educational Resources Information Center

Briggs, Chari; Elkind, David

Some studies of early readers are discussed. It is pointed out that study of early readers has relevance for practical and theoretical issues in psychology and education. Of interest in this document are the following questions: (1) Are there any special talents or traits distinguishing early from non-early readers? (2) Do children who read early…

My Journey as a Reader

ERIC Educational Resources Information Center

Cevellos, Tatiana

2008-01-01

In this case history, the author describes how her journey as a reader evolved from a poor reader who did not like to read in elementary school into an avid trilingual reader in graduate school. Once she discovered the joy of reading, each language in which she read had its own purpose and emotional connection. She credits self-selected reading…

Image plates as x-ray detectors in plasma physics experiments

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gales, S.G.; Bentley, C.D.

2004-10-01

The performance of image plates based on the photostimulable phosphor BaF(Br,l):Eu{sup 2+} has been investigated and compared with x-ray film. Evaluation of detective quantum efficiency (DQE), sensitivity, dynamic range, and linearity was carried out for several types of commercially available image plate, using the Excalibur soft x-ray calibration facility at AWE. Image plate response was found to be linear over a dynamic range of 5 orders of magnitude. One type of image plate was found to have a number of advantages for soft x-ray detection, with a measured sensitivity 1 order of magnitude greater than that of Kodak Industrex CXmore » and DEF-5 x-ray film. The DQE of this plate was found to be superior to that of film at low [less than 10{sup 3} photons/(50 {mu}m){sup 2}] and high fluxes [greater than 10{sup 4} photons/(50 {mu}m){sup 2}]. The spatial resolution of image plates, scanned with several models of commercial image plate readers, has been evaluated using a USAF resolution test target. The highest spatial resolution measured is 35 {mu}m. Though this is significantly lower than the resolution possible with film, it is sufficient for many applications. Image plates were fielded in a refractive x-ray lens imaging diagnostic on the 1 TW Helen laser and these results are discussed.« less

Development of a new microtiter plate format for clinically relevant assays.

PubMed

Piletska, Elena V; Piletsky, Stanislav S; Whitcombe, Michael J; Chianella, Iva; Piletsky, Sergey A

2012-02-21

A new format for the microtiter plate-based assays was proposed. The novelty involves the use of disk-shaped inserts for immobilization of biological and chemical reagents. The internal opening of the disks allows measurements of the reactions by standard microtiter plate readers without any additional steps involving liquid handling. Ideally the plate end-users just have to add the sample and take the measurement without any need of multiple reagent additions or transfer of the liquid to a different plate. The novel assay format also allows handling of reagents which are not soluble in an aqueous environment. As a proof of concept we describe here several model reactions which are compatible with microtiter plate format, such as monitoring enzymatic reactions catalyzed by glucose oxidase (GOx) and urease, measurements of proteins by BCA assay, analysis of pH, and concentration of antioxidants. The "mix and match" approach in the disk-shape format allows multiplexing and could be particularly useful for high throughput screening. One of the potential application areas for this novel assay format could be in a multianalyte system for measurement of clinically relevant analytes in primary care.

Children and adults both see 'pirates' in 'parties': letter-position effects for developing readers and skilled adult readers.

PubMed

Paterson, Kevin B; Read, Josephine; McGowan, Victoria A; Jordan, Timothy R

2015-03-01

Developing readers often make anagrammatical errors (e.g. misreading pirates as parties), suggesting they use letter position flexibly during word recognition. However, while it is widely assumed that the occurrence of these errors decreases with increases in reading skill, empirical evidence to support this distinction is lacking. Accordingly, we compared the performance of developing child readers (aged 8-10 years) against the end-state performance of skilled adult readers in a timed naming task, employing anagrams used previously in this area of research. Moreover, to explore the use of letter position by developing readers and skilled adult readers more fully, we used anagrams which, to form another word, required letter transpositions over only interior letter positions, or both interior and exterior letter positions. The patterns of effects across these two anagram types for the two groups of readers were very similar. In particular, both groups showed similarly slowed response times (and developing readers increased errors) for anagrams requiring only interior letter transpositions but not for anagrams that required exterior letter transpositions. This similarity in the naming performance of developing readers and skilled adult readers suggests that the end-state skilled use of letter position is established earlier during reading development than is widely assumed. © 2014 John Wiley & Sons Ltd.

Simultaneous and iterative weighted regression analysis of toxicity tests using a microplate reader.

PubMed

Galgani, F; Cadiou, Y; Gilbert, F

1992-04-01

A system is described for determination of LC50 or IC50 by an iterative process based on data obtained from a plate reader using a marine unicellular alga as a target species. The esterase activity of Tetraselmis suesica on fluorescein diacetate as a substrate was measured using a fluorescence titerplate. Simultaneous analysis of results was performed using an iterative process adopting the sigmoid function Y = y/1 (dose of toxicant/IC50)slope for dose-response relationships. IC50 (+/- SEM) was estimated (P less than 0.05). An application with phosalone as a toxicant is presented.

The Readers' Advisor's Companion.

ERIC Educational Resources Information Center

Shearer, Kenneth D., Ed.; Burgin, Robert, Ed.

From scholarly discourse to the latest issues in readers' advisory services, this guide provides up-to-date information on the many challenges of the practice, as well as on interdisciplinary directions, continuing education, and the gap in graduate professional education for readers' advisory. The book's 16 chapters are organized into three main…

An Urdu Newspaper Reader. Key to an Urdu Newspaper Reader. (2 vol).

ERIC Educational Resources Information Center

Barker, Muhammad Abd-al-Rahman; And Others

This Reader is the second of a four-volume series in Urdu prepared by the Institute of Islamic Studies at McGill University. (See "A Course in Urdu," ED 013 435-7; "A Reader of Modern Urdu Poetry," ED 022 163; and "An Urdu Newspaper Word Count," AL 002 059.) This volume is intended for use at the second-year level of a comprehensive program of…

Moving Readers from Struggling to Proficient

ERIC Educational Resources Information Center

Wolter, Deborah

2017-01-01

If we want to move children from struggling to read to being proficient readers, we must address the disparate ways that teachers respond to readers with varying abilities. Restorative practices, akin to restorative justice, build relationships, make connections, and foster a reader's sense of ownership and empowerment. What would happen if…

Reader performance in visual assessment of breast density using visual analogue scales: Are some readers more predictive of breast cancer?

NASA Astrophysics Data System (ADS)

Rayner, Millicent; Harkness, Elaine F.; Foden, Philip; Wilson, Mary; Gadde, Soujanya; Beetles, Ursula; Lim, Yit Y.; Jain, Anil; Bundred, Sally; Barr, Nicky; Evans, D. Gareth; Howell, Anthony; Maxwell, Anthony; Astley, Susan M.

2018-03-01

Mammographic breast density is one of the strongest risk factors for breast cancer, and is used in risk prediction and for deciding appropriate imaging strategies. In the Predicting Risk Of Cancer At Screening (PROCAS) study, percent density estimated by two readers on Visual Analogue Scales (VAS) has shown a strong relationship with breast cancer risk when assessed against automated methods. However, this method suffers from reader variability. This study aimed to assess the performance of PROCAS readers using VAS, and to identify those most predictive of breast cancer. We selected the seven readers who had estimated density on over 6,500 women including at least 100 cancer cases, analysing their performance using multivariable logistic regression and Receiver Operator Characteristic (ROC) analysis. All seven readers showed statistically significant odds ratios (OR) for cancer risk according to VAS score after adjusting for classical risk factors. The OR was greatest for reader 18 at 1.026 (95% Cl 1.018-1.034). Adjusted Area Under the ROC Curves (AUCs) were statistically significant for all readers, but greatest for reader 14 at 0.639. Further analysis of the VAS scores for these two readers showed reader 14 had higher sensitivity (78.0% versus 42.2%), whereas reader 18 had higher specificity (78.0% versus 46.0%). Our results demonstrate individual differences when assigning VAS scores; one better identified those with increased risk, whereas another better identified low risk individuals. However, despite their different strengths, both readers showed similar predictive abilities overall. Standardised training for VAS may improve reader variability and consistency of VAS scoring.

Benefit of the Doubt. Reader Reflections

ERIC Educational Resources Information Center

Mathematics Teacher, 2016

2016-01-01

The editors of Mathematics Teacher appreciate the interest of readers and value the views of those who write in with comments. The editors ask that name and affiliation including email address be provided at the end of their letters. This September 2016 Reader Reflections, provides reader comments on the following articles: (1) "Innocent…

Using Readers' Theatre in the Classroom.

ERIC Educational Resources Information Center

Annarella, Lorie A.

Reader's Theatre can be used to combine basic literature and writing instruction with creative arts. Improvisational playmaking by students, using literature in the form of plays, prose, and poetry, forms the basis of Reader's Theatre. Use of Reader's Theatre in the classroom can: (1) foster deeper understanding of character, setting, and plot…

Capacitive label reader

DOEpatents

Arlowe, H. Duane

1985-01-01

A capacitive label reader includes an outer ring transmitting portion, an inner ring transmitting portion, and a plurality of insulated receiving portions. A label is the mirror-image of the reader except that identifying portions corresponding to the receiving portions are insulated from only one of two coupling elements. Positive and negative pulses applied, respectively, to the two transmitting rings biased a CMOS shift register positively to either a 1 or 0 condition. The output of the CMOS may be read as an indication of the label.

Capacitive label reader

DOEpatents

Arlowe, H.D.

1983-07-15

A capacitive label reader includes an outer ring transmitting portion, an inner ring transmitting portion, and a plurality of insulated receiving portions. A label is the mirror-image of the reader except that identifying portions corresponding to the receiving portions are insulated from only one of two coupling elements. Positive and negative pulses applied, respectively, to the two transmitting rings biased a CMOS shift register positively to either a 1 or 0 condition. The output of the CMOS may be read as an indication of the label.

Reader Theories and Educational Media Analysis.

ERIC Educational Resources Information Center

Becker, Ann DeVaney

Post structural reader theories--i.e., theories that focus on the reader/viewer rather than the text as the creator of meaning--are considered in this paper in terms of their application to educational media research. Some key concepts of reader theories are defined as follows: (1) reading is the process of creating meaning while viewing an…

E-Readers: Powering up for Engagement

ERIC Educational Resources Information Center

Miranda, Twyla; Johnson, Kary A.; Rossi-Williams, Dara

2012-01-01

E-readers like the Amazon Kindle and the Barnes and Noble Nook are beginning to make their way into school libraries and classrooms. It's about time. E-readers have tremendous potential to entice reluctant readers to read more. A study that the authors recently conducted among low-reading-ability middle school students demonstrated that potential.…

Capacitive label reader

DOEpatents

Arlowe, H.D.

1985-11-12

A capacitive label reader includes an outer ring transmitting portion, an inner ring transmitting portion, and a plurality of insulated receiving portions. A label is the mirror-image of the reader except that identifying portions corresponding to the receiving portions are insulated from only one of two coupling elements. Positive and negative pulses applied, respectively, to the two transmitting rings biased a CMOS shift register positively to either a 1 or 0 condition. The output of the CMOS may be read as an indication of the label. 5 figs.

Breaking off Engagement: Readers' Disengagement as a Function of Reader and Text Characteristics

ERIC Educational Resources Information Center

Goedecke, Patricia J.; Dong, Daqi; Shi, Genghu; Feng, Shi; Risko, Evan; Olney, Andrew M.; D'Mello, Sidney K.; Graesser, Arthur C.

2015-01-01

Engagement during reading can be measured by the amount of time readers invest in the reading process. It is hypothesized that disengagement is marked by a decrease in time investment as compared with the demands made on the reader by the text. In this study, self-paced reading times for screens of text were predicted by a text complexity score…

The Routledge Applied Linguistics Reader

ERIC Educational Resources Information Center

Wei, Li, Ed.

2011-01-01

"The Routledge Applied Linguistics Reader" is an essential collection of readings for students of Applied Linguistics. Divided into five sections: Language Teaching and Learning, Second Language Acquisition, Applied Linguistics, Identity and Power and Language Use in Professional Contexts, the "Reader" takes a broad…

White matter properties differ in 6-year old Readers and Pre-Readers

PubMed Central

Kovachy, Vanessa N; Ben-Shachar, Michal; Feldman, Heidi M

2016-01-01

Reading, an essential life skill in modern society, is typically learned during childhood. Adults who can read show white matter differences compared to adults who never learned to read. Studies have not established whether children who can read show similar white matter differences compared to children who cannot read. We compared 6-year old children who could decode written English words and pseudowords (n=31; Readers) and 6-year old children who could not decode pseudowords and had a standard score < 100 on a task for reading single words (n=11; Pre-Readers). We employed diffusion MRI and tractography to extract fractional anisotropy (FA) along the trajectory of 6 bilateral intra-hemispheric tracts and 2 posterior subdivisions of the corpus callosum. Readers demonstrated significantly increased FA within the left anterior segment of the superior longitudinal fasciculus (aSLF-L) and the right uncinate fasciculus (UF-R) compared to Pre-Readers. FA in the aSLF-L was significantly correlated with phonological awareness; FA in the UF-R was significantly correlated with language. Correlations in the UF-R but not the aSLF-L remained significant after controlling for reading ability, revealing that UF-R group differences were related to both children's language and reading abilities. Taken together, these findings demonstrate new evidence showing that individual differences in white matter structure relate to whether children have begun to read. PMID:27631434

A Sign Language Screen Reader for Deaf

NASA Astrophysics Data System (ADS)

El Ghoul, Oussama; Jemni, Mohamed

Screen reader technology has appeared first to allow blind and people with reading difficulties to use computer and to access to the digital information. Until now, this technology is exploited mainly to help blind community. During our work with deaf people, we noticed that a screen reader can facilitate the manipulation of computers and the reading of textual information. In this paper, we propose a novel screen reader dedicated to deaf. The output of the reader is a visual translation of the text to sign language. The screen reader is composed by two essential modules: the first one is designed to capture the activities of users (mouse and keyboard events). For this purpose, we adopted Microsoft MSAA application programming interfaces. The second module, which is in classical screen readers a text to speech engine (TTS), is replaced by a novel text to sign (TTSign) engine. This module converts text into sign language animation based on avatar technology.

Report Card on Basal Readers.

ERIC Educational Resources Information Center

Goodman, Kenneth S.; And Others

This report examines the nature of the modern basal reader, its economics, and use. First, the report provides a history showing how the confluence of business principles, positivistic science, and behavioral psychology led to the transformation of reading textbooks into basal readers. Next, the report examines objectives and subjective factors…

When High-Capacity Readers Slow Down and Low-Capacity Readers Speed Up: Working Memory and Locality Effects.

PubMed

Nicenboim, Bruno; Logačev, Pavel; Gattei, Carolina; Vasishth, Shravan

2016-01-01

We examined the effects of argument-head distance in SVO and SOV languages (Spanish and German), while taking into account readers' working memory capacity and controlling for expectation (Levy, 2008) and other factors. We predicted only locality effects, that is, a slowdown produced by increased dependency distance (Gibson, 2000; Lewis and Vasishth, 2005). Furthermore, we expected stronger locality effects for readers with low working memory capacity. Contrary to our predictions, low-capacity readers showed faster reading with increased distance, while high-capacity readers showed locality effects. We suggest that while the locality effects are compatible with memory-based explanations, the speedup of low-capacity readers can be explained by an increased probability of retrieval failure. We present a computational model based on ACT-R built under the previous assumptions, which is able to give a qualitative account for the present data and can be tested in future research. Our results suggest that in some cases, interpreting longer RTs as indexing increased processing difficulty and shorter RTs as facilitation may be too simplistic: The same increase in processing difficulty may lead to slowdowns in high-capacity readers and speedups in low-capacity ones. Ignoring individual level capacity differences when investigating locality effects may lead to misleading conclusions.

When High-Capacity Readers Slow Down and Low-Capacity Readers Speed Up: Working Memory and Locality Effects

PubMed Central

Nicenboim, Bruno; Logačev, Pavel; Gattei, Carolina; Vasishth, Shravan

2016-01-01

We examined the effects of argument-head distance in SVO and SOV languages (Spanish and German), while taking into account readers' working memory capacity and controlling for expectation (Levy, 2008) and other factors. We predicted only locality effects, that is, a slowdown produced by increased dependency distance (Gibson, 2000; Lewis and Vasishth, 2005). Furthermore, we expected stronger locality effects for readers with low working memory capacity. Contrary to our predictions, low-capacity readers showed faster reading with increased distance, while high-capacity readers showed locality effects. We suggest that while the locality effects are compatible with memory-based explanations, the speedup of low-capacity readers can be explained by an increased probability of retrieval failure. We present a computational model based on ACT-R built under the previous assumptions, which is able to give a qualitative account for the present data and can be tested in future research. Our results suggest that in some cases, interpreting longer RTs as indexing increased processing difficulty and shorter RTs as facilitation may be too simplistic: The same increase in processing difficulty may lead to slowdowns in high-capacity readers and speedups in low-capacity ones. Ignoring individual level capacity differences when investigating locality effects may lead to misleading conclusions. PMID:27014113

Readers, Instruction, and the NRP

ERIC Educational Resources Information Center

Wilson, G. Pat; Martens, Prisca; Arya, Poonam; Altwerger, Bess

2004-01-01

Are programs that emphasize systematic phonics instruction truly superior to other types of programs for young readers, as the National Reading Panel claims? The authors conducted a study of three different programs to see what kinds of readers are actually emerging from them. Two were commercial programs that used explicit and systematic phonics…

[Survey among readers of the Tijdschrift voor Psychiatrie].

PubMed

Brandt-Dominicus, J C; van Harten, P N

2006-01-01

The editorial board has defined the objectives of this journal as follows: to provide its readers with refreshing information, to report the results of scientific research and to build bridges between research and everyday practice. To find out what readers want and whether they support the board's objectives, and to use this information in planning the contents of future issues of the journal. All readers were invited to complete a questionnaire either on paper or via the website. Questionnaires were completed by 255 readers (response rate 5.7%). The average rating on a 5-point Likert scale was 3.8. Thematic issues and issues devoted to book reviews were given a high rating. There seems to be a demandfor evidence-based medicine, the inclusion of scientific results reported in other journals and practice-based articles. No significant differences were found between the views expressed by readers who had previously submitted an article for publication and those who had not, nor between Flemish readers and Dutch readers. The website was not visited very often. The Tijdschrift voor Psychiatrie is greatly appreciated by its readers. They are largely in agreement with the objectives formulated by the editorial board. Thematic issues are highly rated and many subjects are mentioned by the readers for future issues. The low response to the survey can affect its representativity. The editorial board will take readers' wishes into consideration when selecting material for future issues of the journal.

21 CFR 886.5800 - Ophthalmic bar reader.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Ophthalmic bar reader. 886.5800 Section 886.5800...) MEDICAL DEVICES OPHTHALMIC DEVICES Therapeutic Devices § 886.5800 Ophthalmic bar reader. (a) Identification. An ophthalmic bar reader is a device that consists of a magnifying lens intended for use by a...

21 CFR 886.5810 - Ophthalmic prism reader.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Ophthalmic prism reader. 886.5810 Section 886.5810...) MEDICAL DEVICES OPHTHALMIC DEVICES Therapeutic Devices § 886.5810 Ophthalmic prism reader. (a) Identification. An ophthalmic prism reader is a device intended for use by a patient who is in a supine position...

21 CFR 886.5810 - Ophthalmic prism reader.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Ophthalmic prism reader. 886.5810 Section 886.5810...) MEDICAL DEVICES OPHTHALMIC DEVICES Therapeutic Devices § 886.5810 Ophthalmic prism reader. (a) Identification. An ophthalmic prism reader is a device intended for use by a patient who is in a supine position...

21 CFR 886.5810 - Ophthalmic prism reader.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Ophthalmic prism reader. 886.5810 Section 886.5810...) MEDICAL DEVICES OPHTHALMIC DEVICES Therapeutic Devices § 886.5810 Ophthalmic prism reader. (a) Identification. An ophthalmic prism reader is a device intended for use by a patient who is in a supine position...

21 CFR 886.5810 - Ophthalmic prism reader.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Ophthalmic prism reader. 886.5810 Section 886.5810...) MEDICAL DEVICES OPHTHALMIC DEVICES Therapeutic Devices § 886.5810 Ophthalmic prism reader. (a) Identification. An ophthalmic prism reader is a device intended for use by a patient who is in a supine position...

Proud Readers Own What's Learned

ERIC Educational Resources Information Center

Tucker, Jessica Fink

2014-01-01

Proud Readers Own What's Learned (PROWL) was developed out of the need to find an engaging, creative process for readers to express what they have read and, frankly, to let teachers see that the students actually read the books. In other more prescriptive reading programs students can go through the motions and actually pass tests without having…

RFID Reader Antenna with Multi-Linear Polarization Diversity

NASA Technical Reports Server (NTRS)

Fink, Patrick; Lin, Greg; Ngo, Phong; Kennedy, Timothy; Rodriguez, Danny; Chu, Andrew; Broyan, James; Schmalholz, Donald

2018-01-01

This paper describes an RFID reader antenna that offers reduced polarization loss compared to that typically associated with reader-tag communications involving arbitrary relative orientation of the reader antenna and the tag.

Pashto Reader.

ERIC Educational Resources Information Center

Tegey, Habibullah; Robson, Barbara

This reader is the basic text for a set of instructional materials in Pashto. It consists of 45 authentic passages in Pashto script, each accompanied by background information, a vocabulary list, hints for scanning, comprehension exercises, and notes for detailed rereading. An introductory section offers study suggestions for the student. The…

CUZCO READER.

ERIC Educational Resources Information Center

SOLA, DONALD F.

WRITTEN TO ACCOMPANY THE SPOKEN CUZCO QUECHUA MATERIALS, THIS READER CONSISTS OF SHORT SELECTIONS ACTUALLY RECORDED IN THE FIELD AND REPRESENTING SEVERAL SUBDIALECTS SPOKEN IN RURAL SECTIONS OF THE DEPARTMENT OF CUZCO, PERU. INCLUDED ARE DIALOGS, STORIES, SONGS, CULTURAL SELECTIONS, AND INTERVIEWS. THE FORMAT GIVES THE CUZCO QUECHUA DIALECT AND…

COCHABAMBA READER.

ERIC Educational Resources Information Center

LASTRA, YOLANDA

INTENDED AS FOLLOWUP MATERIAL AFTER THE COMPLETION OF THE TWO-VOLUME SPOKEN COCHABAMBA COURSE, THIS READER CONSISTS OF A SINGLE LONG STORY, "JUANITO," WRITTEN BY OSCAR TERAN. IT HAS BEEN USED AS A RADIO SCRIPT FOR A SERIES OF BROADCASTS FROM A COCHABAMBA STATION WHICH SERVES THE SURROUNDING INDIGENOUS POPULATION. THE MATERIAL IS…

Type Testing of Model 7200 Automatic TLD Reader.

PubMed

Malek Mohammadi, M; Hosseini Pooya, S M

2017-04-20

The type testing of measuring devices is one of the most important parts of a quality management system in a personal dosimetry services program. In this study, based upon the International Electrotechnical Commission (IEC) 62387 criteria, a reader-testing program was performed for a home-made personal thermoluminescent dosimetry (TLD) reader. The stability of the reader, the effects of light exposure, temperature and fluctuations of primary power supply on TLD read-outs as the main parameters were investigated in this program. Moreover, this study assesses some important criteria of dosimetry system including the non-linearity of response, reusability, after effect and overload that may include significant contribution in the performance of a reader. The results showed that the TLD reader met all requirements of the IEC for the reader tests by a large margin. © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

"True Wizardry": Readers Theatre in the Classroom. PEN 79.

ERIC Educational Resources Information Center

Robertson, Marion E.

This article describes Readers Theater (a form of group storytelling in which two or more readers present a piece of literature by reading aloud from hand-held scripts) and advocates its use in the classroom. The paper's seven sections are as follows: (1) What is Readers Theater; (2) Readers Theater and Its Conventions (discussing scripts,…

"It's All Coming Together": An Encounter between Implied Reader and Actual Reader in the Australian Rainforest

ERIC Educational Resources Information Center

Williams, Sandra J.

2008-01-01

In this paper I discuss how taking a particular literary theory--the implied reader--serves to offer a focus for the teacher's initial reading of a text and provides a formative assessment tool. Iser's Implied Reader theory is discussed, after which a picture book, "Where the Forest Meets the Sea" by Jeannie Baker, is analysed from this…

Color and luminance increment thresholds in poor readers.

PubMed

Dain, Stephen J; Floyd, Richard A; Elliot, Robert T

2008-01-01

The hypotheses of a visual basis to reading disabilities in some children have centered around deficits in the visual processes displaying more transient responses to stimuli although hyperactivity in the visual processes displaying sustained responses to stimuli has also been proposed as a mechanism. In addition, there is clear evidence that colored lenses and/or colored overlays and/or colored backgrounds can influence performance in reading and/or may assist in providing comfortable vision for reading and, as a consequence, the ability to maintain reading for longer. As a consequence, it is surprising that the color vision of poor readers is relatively little studied. We assessed luminance increment thresholds and equi-luminous red-green and blue-yellow increment thresholds using a computer based test in central vision and at 10 degrees nasally employing the paradigm pioneered by King-Smith. We examined 35 poor readers (based on the Neale Analysis of Reading) and compared their performance with 35 normal readers matched for age and IQ. Poor readers produced similar luminance contrast thresholds for both foveal and peripheral presentation compared with normals. Similarly, chromatic contrast discrimination for the red/green stimuli was the same in normal and poor readers. However, poor readers had significantly lower thresholds/higher sensitivity for the blue/yellow stimuli, for both foveal and peripheral presentation, compared with normal readers. This hypersensitivity in blue-yellow discrimination may point to why colored lenses and overlays are often found to be effective in assisting many poor readers.

Livermore time-sharing system. Part I. Octopus. Chapter 5. Card reader/card punch. [Description of card reader and formats

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lawrence, J.D.

1970-03-12

The Control Data 405 card reader, modified by the Control Data 3649 card read controller, is the primary mechanism for transferring information from a deck of punched cards into the CDC 6600 and CDC 7600 computers of the LLL Octopus system. The card reader operates at a maximum rate of 1200 cards per minute. A description of the card reader and its operation is given. A discussion of formates is included. (RWR)

KURDISH READERS. PART II, KURDISH ESSAYS.

ERIC Educational Resources Information Center

ABDULLA, JAMAL JALAL; MCCARUS, ERNEST N.

THIS READER, TOGETHER WITH THE "NEWSPAPER KURDISH" AND "SHORT STORIES" READERS, FOLLOWS THE "BASIC COURSE IN KURDISH" (BY THE SAME AUTHORS) AND ASSUMES A MASTERY OF THE BASIC ELEMENTS OF THE STRUCTURE AND WRITING SYSTEM AS PRESENTED IN THE BEGINNING COURSE. WRITTEN IN THE SULAIMANIAN DIALECT, THE OFFICIAL DIALECT OF…

"Science in Society, Omnibus Pack, Readers M-P."

ERIC Educational Resources Information Center

Association for Science Education, Cambridge (England).

Four additional readers have been written for use in the Science in Society general studies project. Three of the readers discuss the applications and importance of engineering in the world. They include: Engineering 1 (Reader M), which discusses such topics as the role of engineering in society, structural design and engineering, the engineering…

RESOLV: Readers' Representation of Reading Contexts and Tasks

ERIC Educational Resources Information Center

Rouet, Jean-François; Britt, M. Anne; Durik, Amanda M.

2017-01-01

We introduce RESOLV, a theoretical model to account for readers' construction and management of goals during text comprehension and use. RESOLV focuses on readers' experience of their physical, social, and communicative context prior to actually engaging with texts. RESOLV assumes that readers construct two types of mental models prior to reading:…

Using Nooks to Hook Reluctant Readers

ERIC Educational Resources Information Center

Dierking, Rebecca

2015-01-01

This article presents the findings of a two-year qualitative study of electronic reading device use with high school sophomores, most of whom self-identified as reluctant or struggling readers. Electronic readers were used primarily in one weekly fifty-minute class period, during silent sustained reading, wherein students chose freely their texts.…

Using Readers' Theater with Multicultural Literature

ERIC Educational Resources Information Center

Weisenburger, Stephanie

2009-01-01

The author needed a way to engage her students in the reading process and found one extremely successful strategy: using Readers' Theater. Readers' Theater "dramatizes" literature through a classroom performance and provides visual and oral stimulus to students who are not used to using imagination to appreciate literary texts. It involves a…

Reader Use and Understanding of Newspaper Informational Graphics.

ERIC Educational Resources Information Center

Pasternack, Steve; Utt, Sandra H.

While the use of informational graphics in newspapers is increasing, little is known regarding how well readers can understand them and how readers use them. A study investigated whether readers of newspapers read graphics before or after they read the headline/text, and whether people decide to read a graphic device for appearance-related or…

LESS SKILLED READERS HAVE LESS EFFICIENT SUPPRESSION MECHANISMS.

PubMed

Gernsbacher, Morton Ann

1993-09-01

One approach to understanding the component processes and mechanisms underlying adult reading skill is to compare the performance of more skilled and less skilled readers on laboratory experiments. The results of some recent experiments employing this approach demonstrate that less skilled adult readers suppress less efficiently the inappropriate meanings of ambiguous words (e.g., the playing card vs. garden tool meanings of spade ), the incorrect forms of homophones (e.g., patients vs. patience ), the typical-but-absent members of scenes (e.g., a tractor in a farm scene), and words superimposed on pictures. Less skilled readers are not less efficient in activating contextually appropriate information; in fact, they activate contextually appropriate information more strongly than more skilled readers do. Therefore, one conclusion that can be drawn from these experiments is that less skilled adult readers suffer from less efficient suppression mechanisms.

Prevalence and Nature of Late-Emerging Poor Readers.

PubMed

Catts, Hugh W; Compton, Donald; Tomblin, J Bruce; Bridges, Mindy Sittner

2012-02-01

Some children demonstrate adequate or better reading achievement in early school grades, but fall significantly behind their peers in later grades. These children are often referred to as late-emerging poor readers. In this study, we investigated the prevalence and heterogeneity of these poor readers. We also examined the early language and nonverbal cognitive abilities of late-emerging poor readers. Participants were 493 children who were a subsample from an epidemiological study of language impairments in school-age children. In kindergarten, children were administered a battery of language, early literacy, and nonverbal cognitive measures. Word reading and reading comprehension achievement was assessed in second, fourth, eighth, and tenth grades. Latent transition analysis was used to model changes in reading classification (good vs. poor reader) across grades. Population estimates revealed that 13.4% percent of children could be classified as late-emerging poor readers. These children could be divided into those with problems in comprehension alone (52%), word reading alone (36%), or both (12%). Further results indicated that late-emerging poor readers often had a history of language and/or nonverbal cognitive impairments in kindergarten. Subtypes of poor readers also differed significantly in their profiles of language, early literacy, and nonverbal cognitive abilities in kindergarten. Results are discussed in terms of causal factors and implications for early identification.

Are You a Reader? 5th Graders Respond

ERIC Educational Resources Information Center

Barone, Diane; Barone, Rebecca

2016-01-01

The author tells the story of a 5th-grade teacher who challenges her class to take on self-identities as readers. Students defined seven characteristics of what it means to be a good reader and considered whether those characteristics applied to them: Good readers read for fun, talk about books, usually finish the book they're reading, can relate…

Understanding Reading through the Eyes of Third-Grade Struggling Readers

ERIC Educational Resources Information Center

Wiggs, Christine E.

2012-01-01

Within the vast research base on struggling readers, very few studies address the nature of struggling readers from their own perspectives; that is, how struggling readers experience reading instruction. The purpose of this qualitative case study research was to gain a deeper understanding of how three third-grade struggling readers viewed…

Examining Readers' Evaluations of Objectivity and Bias in News Discourse

ERIC Educational Resources Information Center

Cramer, Peter; Eisenhart, Christopher

2014-01-01

Readers' objectivity and bias evaluations of news texts were investigated in order to better understand the process by which readers make these kinds of judgments and the evidence on which they base them. Readers were primed to evaluate news texts for objectivity and bias, and their selections and metacommentary were analyzed. Readers detected…

EST Readers: Some Principles for Their Design and Use.

ERIC Educational Resources Information Center

Moore, Christopher J.

1983-01-01

The editor of "Heinemann's Science and Technology Readers" responds to questions concerning the objectives and design of the series. The market for technical readers; reader format and difficulty level; illustrations, technical exercises, and the language teacher; and the intended classroom use are discussed. (MSE)

Metacognition and Reading: Comparing Three Forms of Metacognition in Normally Developing Readers and Readers with Dyslexia.

PubMed

Furnes, Bjarte; Norman, Elisabeth

2015-08-01

Metacognition refers to 'cognition about cognition' and includes metacognitive knowledge, strategies and experiences (Efklides, 2008; Flavell, 1979). Research on reading has shown that better readers demonstrate more metacognitive knowledge than poor readers (Baker & Beall, 2009), and that reading ability improves through strategy instruction (Gersten, Fuchs, Williams, & Baker, 2001). The current study is the first to specifically compare the three forms of metacognition in dyslexic (N = 22) versus normally developing readers (N = 22). Participants read two factual texts, with learning outcome measured by a memory task. Metacognitive knowledge and skills were assessed by self-report. Metacognitive experiences were measured by predictions of performance and judgments of learning. Individuals with dyslexia showed insight into their reading problems, but less general knowledge of how to approach text reading. They more often reported lack of available reading strategies, but groups did not differ in the use of deep and surface strategies. Learning outcome and mean ratings of predictions of performance and judgments of learning were lower in dyslexic readers, but not the accuracy with which metacognitive experiences predicted learning. Overall, the results indicate that dyslexic reading and spelling problems are not generally associated with lower levels of metacognitive knowledge, metacognitive strategies or sensitivity to metacognitive experiences in reading situations. 2015 The Authors. Dyslexia Published by John Wiley & Sons Ltd.

On the Origins of Readers' Outcome Preferences

ERIC Educational Resources Information Center

Gerrig, Richard J.; Bagelmann, Kelsey A.; Mumper, Micah L.

2016-01-01

Narratives often provide readers with opportunities to encode their preferences for particular outcomes. Our project examines some origins of such outcome preferences. For example, past literature suggests that readers tend to prefer positive outcomes for "good" characters and negative outcomes for "bad" characters. To extend…

Semantic and Phonological Coding in Poor and Normal Readers.

ERIC Educational Resources Information Center

Vellutino, Frank R.; And Others

1995-01-01

Using poor and normal readers, three studies evaluated semantic coding and phonological coding deficits as explanations for reading disability. It was concluded that semantic coding deficits are unlikely causes of difficulties in poor readers in early stages but accrue with prolonged reading difficulties in older readers. Phonological coding…

Helping Reluctant Readers

ERIC Educational Resources Information Center

McCormick, Montana K.; Segal, Pamela H.

2016-01-01

University educators work with preservice teachers who often feel overwhelmed when facing high school science classrooms full of reluctant readers. These struggling students often have various special-education modifications or are English language learners (ELLs) with different degrees of language proficiency. Teachers report that these students…

Advanced Tagalog Reader.

ERIC Educational Resources Information Center

Ramos, Teresita V.

A Tagalog reader designed for adult students beyond the intermediate level contains 30 lessons in agriculture, art, economics, education, history, language, literature, medicine, music, political science, religion, and sociology. Each unit contains four sections: (1) a reading passage with numbered paragraphs and underlined vocabulary words, for…

Semantic and phonological coding in poor and normal readers.

PubMed

Vellutino, F R; Scanlon, D M; Spearing, D

1995-02-01

Three studies were conducted evaluating semantic and phonological coding deficits as alternative explanations of reading disability. In the first study, poor and normal readers in second and sixth grade were compared on various tests evaluating semantic development as well as on tests evaluating rapid naming and pseudoword decoding as independent measures of phonological coding ability. In a second study, the same subjects were given verbal memory and visual-verbal learning tasks using high and low meaning words as verbal stimuli and Chinese ideographs as visual stimuli. On the semantic tasks, poor readers performed below the level of the normal readers only at the sixth grade level, but, on the rapid naming and pseudoword learning tasks, they performed below the normal readers at the second as well as at the sixth grade level. On both the verbal memory and visual-verbal learning tasks, performance in poor readers approximated that of normal readers when the word stimuli were high in meaning but not when they were low in meaning. These patterns were essentially replicated in a third study that used some of the same semantic and phonological measures used in the first experiment, and verbal memory and visual-verbal learning tasks that employed word lists and visual stimuli (novel alphabetic characters) that more closely approximated those used in learning to read. It was concluded that semantic coding deficits are an unlikely cause of reading difficulties in most poor readers at the beginning stages of reading skills acquisition, but accrue as a consequence of prolonged reading difficulties in older readers. It was also concluded that phonological coding deficits are a probable cause of reading difficulties in most poor readers.

Enhancing Memory Access for Less Skilled Readers

ERIC Educational Resources Information Center

Smith, Emily R.; O'Brien, Edward J.

2016-01-01

Less skilled readers' comprehension often suffers because they have an impoverished representation of text in long-term memory; this, in turn, increases the difficulty of gaining access to backgrounded information necessary for maintaining coherence. The results of four experiments demonstrated that providing less skilled readers with additional…

21 CFR 886.5800 - Ophthalmic bar reader.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Ophthalmic bar reader. 886.5800 Section 886.5800 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OPHTHALMIC DEVICES Therapeutic Devices § 886.5800 Ophthalmic bar reader. (a...

21 CFR 886.5810 - Ophthalmic prism reader.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Ophthalmic prism reader. 886.5810 Section 886.5810 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OPHTHALMIC DEVICES Therapeutic Devices § 886.5810 Ophthalmic prism reader. (a...

Reader Engagement in English and Persian Applied Linguistics Articles

ERIC Educational Resources Information Center

Ansarin, Ali Akbar; Tarlani-Aliabdi, Hassan

2011-01-01

There is an increasing interest in the way academic writers establish the presence of their readers over the past few years. Establishing the presence of readers or what Kroll (1984, p.181) calls imagining "a second voice" is accomplished when a writer refers "explicitly" to their readers using explicit linguistic resources…

What Predicts Adult Readers' Understanding of STEM Texts?

ERIC Educational Resources Information Center

Follmer, D. Jake; Fang, Shin-Yi; Clariana, Roy B.; Meyer, Bonnie J. F.; Li, Ping

2018-01-01

The current study examined the relations among key variables that underlie reading comprehension of expository science texts in a diverse population of adult native English readers. Using Mechanical Turk to sample a range of adult readers, the study also examined the effect of text presentation on readers' comprehension and knowledge structure…

Handheld E-Book Readers and Scholarship Report and Reader Survey: ACLS Humanities E-Book. White Paper No. 3

ERIC Educational Resources Information Center

Gielen, Nina

2010-01-01

This report describes a conversion experiment and subsequent reader survey conducted by the American Council of Learned Societies (ACLS) Humanities E-Book (HEB) in late 2009 and early 2010 to assess the viability of using scholarly monographs with handheld e-readers. As sample content, HEB selected six titles from its own online collection, three…

E-Readers and Visual Fatigue

PubMed Central

Benedetto, Simone; Drai-Zerbib, Véronique; Pedrotti, Marco; Tissier, Geoffrey; Baccino, Thierry

2013-01-01

The mass digitization of books is changing the way information is created, disseminated and displayed. Electronic book readers (e-readers) generally refer to two main display technologies: the electronic ink (E-ink) and the liquid crystal display (LCD). Both technologies have advantages and disadvantages, but the question whether one or the other triggers less visual fatigue is still open. The aim of the present research was to study the effects of the display technology on visual fatigue. To this end, participants performed a longitudinal study in which two last generation e-readers (LCD, E-ink) and paper book were tested in three different prolonged reading sessions separated by - on average - ten days. Results from both objective (Blinks per second) and subjective (Visual Fatigue Scale) measures suggested that reading on the LCD (Kindle Fire HD) triggers higher visual fatigue with respect to both the E-ink (Kindle Paperwhite) and the paper book. The absence of differences between E-ink and paper suggests that, concerning visual fatigue, the E-ink is indeed very similar to the paper. PMID:24386252

Readers Theatre plus Comprehension and Word Study

ERIC Educational Resources Information Center

Young, Chase; Stokes, Faida; Rasinski, Timothy

2017-01-01

Readers Theatre has been used to introduce critical issues, promote fluency among English learners and non-English learners, teach vocabulary, and integrate content in the classroom. Previous studies of Readers Theatre application have demonstrated an increase in student reading fluency, motivation, and confidence. The focus of this systemic…

21 CFR 866.2850 - Automated zone reader.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Automated zone reader. 866.2850 Section 866.2850 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES IMMUNOLOGY AND MICROBIOLOGY DEVICES Microbiology Devices § 866.2850 Automated zone reader...

21 CFR 866.2850 - Automated zone reader.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Automated zone reader. 866.2850 Section 866.2850 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES IMMUNOLOGY AND MICROBIOLOGY DEVICES Microbiology Devices § 866.2850 Automated zone reader...

21 CFR 866.2850 - Automated zone reader.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Automated zone reader. 866.2850 Section 866.2850 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES IMMUNOLOGY AND MICROBIOLOGY DEVICES Microbiology Devices § 866.2850 Automated zone reader...

21 CFR 866.2850 - Automated zone reader.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Automated zone reader. 866.2850 Section 866.2850 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES IMMUNOLOGY AND MICROBIOLOGY DEVICES Microbiology Devices § 866.2850 Automated zone reader...

21 CFR 866.2850 - Automated zone reader.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Automated zone reader. 866.2850 Section 866.2850 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES IMMUNOLOGY AND MICROBIOLOGY DEVICES Microbiology Devices § 866.2850 Automated zone reader...

Directional tendencies of Hebrew, Japanese, and English readers.

PubMed

Nachson, I; Hatta, T

2001-08-01

Consistent left-right and right-left reading habits are associated with corresponding directional tendencies in the reproduction of horizontally displayed visual stimuli. Inconsistent reading habits should therefore be associated with inconsis tent directional tendencies. This hypothesis was tested on Japanese readers whose reading habits were inconsistent by asking them to reproduce four series of 12-item horizontal stimulus arrays. The hypothesis was partially supported by the data which showed that, like Hebrew readers who also have inconsistent reading habits, the directional tendencies shown by the 68 Japanese readers were significantly weaker on some tasks that those shown by the 16 English readers whose left-right reading habits were consistent. The data were interpreted as showing that acquired reading habits may affect directionality in perception of visual stimuli.

Low self-concept in poor readers: prevalence, heterogeneity, and risk.

PubMed

McArthur, Genevieve; Castles, Anne; Kohnen, Saskia; Banales, Erin

2016-01-01

There is evidence that poor readers are at increased risk for various types of low self-concept-particularly academic self-concept. However, this evidence ignores the heterogeneous nature of poor readers, and hence the likelihood that not all poor readers have low self-concept. The aim of this study was to better understand which types of poor readers have low self-concept. We tested 77 children with poor reading for their age for four types of self-concept, four types of reading, three types of spoken language, and two types of attention. We found that poor readers with poor attention had low academic self-concept, while poor readers with poor spoken language had low general self-concept in addition to low academic self-concept. In contrast, poor readers with typical spoken language and attention did not have low self-concept of any type. We also discovered that academic self-concept was reliably associated with reading and receptive spoken vocabulary, and that general self-concept was reliably associated with spoken vocabulary. These outcomes suggest that poor readers with multiple impairments in reading, language, and attention are at higher risk for low academic and general self-concept, and hence need to be assessed for self-concept in clinical practice. Our results also highlight the need for further investigation into the heterogeneous nature of self-concept in poor readers.

Low self-concept in poor readers: prevalence, heterogeneity, and risk

PubMed Central

Castles, Anne; Kohnen, Saskia; Banales, Erin

2016-01-01

There is evidence that poor readers are at increased risk for various types of low self-concept—particularly academic self-concept. However, this evidence ignores the heterogeneous nature of poor readers, and hence the likelihood that not all poor readers have low self-concept. The aim of this study was to better understand which types of poor readers have low self-concept. We tested 77 children with poor reading for their age for four types of self-concept, four types of reading, three types of spoken language, and two types of attention. We found that poor readers with poor attention had low academic self-concept, while poor readers with poor spoken language had low general self-concept in addition to low academic self-concept. In contrast, poor readers with typical spoken language and attention did not have low self-concept of any type. We also discovered that academic self-concept was reliably associated with reading and receptive spoken vocabulary, and that general self-concept was reliably associated with spoken vocabulary. These outcomes suggest that poor readers with multiple impairments in reading, language, and attention are at higher risk for low academic and general self-concept, and hence need to be assessed for self-concept in clinical practice. Our results also highlight the need for further investigation into the heterogeneous nature of self-concept in poor readers. PMID:27867764

Poster — Thur Eve — 02: Measurement of CT radiation profile width using Fuji CR imaging plate raw data

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bjarnason, T A; Department of Radiology, University of British Columbia, Vancouver; Yang, C J

2014-08-15

Measuring the CT collimation width and assessing the shape of the overall profile is a relatively straightforward quality control (QC) measure that impacts both image quality and patient dose, and is often required at acceptance and routine testing. Most CT facilities have access to computed radiography (CR) systems, so performing CT collimation profile assessments using CR plates requires no additional equipment. Previous studies have shown how to effectively use CR plates to measure the radiation profile width. However, a major limitation of the previous work is that the full dynamic range of CR detector plates are not used, since themore » CR processing technology reduces the dynamic range of the DICOM output to 2{sup 10}, requiring the sensitivity and latitude settings of CR reader to be adjusted to prevent clipping of the CT profile data. Such adjustments to CR readers unnecessarily complicate the QC procedure. These clipping artefacts hinder the ability to accurately assess CT collimation width because the full-width at half maximum value of the penumbras are not properly determined if the maximum dose of the profile is not available. Furthermore, any inconsistencies in the radiation profile shape are lost if the profile plateau is clipped off. In this work we developed an opensource Matlab script for straightforward CT profile width measurements using raw CR data that also allows assessment of the profile shape without clipping, and applied this approach during CT QC.« less

Semantic and visual memory codes in learning disabled readers.

PubMed

Swanson, H L

1984-02-01

Two experiments investigated whether learning disabled readers' impaired recall is due to multiple coding deficiencies. In Experiment 1, learning disabled and skilled readers viewed nonsense pictures without names or with either relevant or irrelevant names with respect to the distinctive characteristics of the picture. Both types of names improved recall of nondisabled readers, while learning disabled readers exhibited better recall for unnamed pictures. No significant difference in recall was found between name training (relevant, irrelevant) conditions within reading groups. In Experiment 2, both reading groups participated in recall training for complex visual forms labeled with unrelated words, hierarchically related words, or without labels. A subsequent reproduction transfer task showed a facilitation in performance in skilled readers due to labeling, with learning disabled readers exhibiting better reproduction for unnamed pictures. Measures of output organization (clustering) indicated that recall is related to the development of superordinate categories. The results suggest that learning disabled children's reading difficulties are due to an inability to activate a semantic representation that interconnects visual and verbal codes.

Accelerated Reader. What Works Clearinghouse Intervention Report

ERIC Educational Resources Information Center

What Works Clearinghouse, 2009

2009-01-01

"Accelerated Reader" is a computer-based reading management system designed to complement an existing classroom literacy program for grades pre-K-12. It is designed to increase the amount of time students spend reading independently. Students choose reading-level appropriate books or short stories for which Accelerated Reader tests are…

Silent Reading Manifestations of Adolescent Struggling Readers

ERIC Educational Resources Information Center

Gilliam, Brenda K.; Dykes, Frank; Gerla, Jacqueline K.; Wright, Gary L.

2011-01-01

The purpose of this study was to explore the link between speech and reading to oneself among struggling readers in secondary schools. The researchers examined the extent to which adolescent struggling readers used various vocal and subvocal behaviors, such as lip movement, mumbling, whispering, and oral reading during individual reading…

For Reluctant Readers.

ERIC Educational Resources Information Center

Fidell, Jeannette A.; Horn, Valerie

The eleven lesson plans outlined in this booklet are designed to stimulate and challenge both underachievers and reluctant readers by helping them learn to read "The New York Times." The lesson plans include the following: exercises in vocabulary enrichment; exercises for developing dictionary skills; topics for oral reports; topics for…

iss038e056422

NASA Image and Video Library

2014-02-25

ISS038-E-056422 (25 Feb. 2014) --- A set of NanoRacks CubeSats is photographed by an Expedition 38 crew member after the deployment by the NanoRacks Launcher attached to the end of the Japanese robotic arm. The CubeSats program contains a variety of experiments such as Earth observations and advanced electronics testing. A blue and white part of Earth provides the backdrop for the scene.

Choosing the Adequate Level of Graded Readers--Preliminary Study

ERIC Educational Resources Information Center

Prtljaga, Jelena; Palinkaševic, Radmila; Brkic, Jovana

2015-01-01

Graded readers have been used as second language teaching material since the end of the Second World War. They are an important source of simplified material which provides comprehensible input on all levels. It is of crucial importance for a successful usage of graded readers in the classroom and in studies which focus on graded readers, that an…

Microplate-reader method for the rapid analysis of copper in natural waters with chemiluminescence detection.

PubMed

Durand, Axel; Chase, Zanna; Remenyi, Tomas; Quéroué, Fabien

2012-01-01

We have developed a method for the determination of copper in natural waters at nanomolar levels. The use of a microplate-reader minimizes sample processing time (~25 s per sample), reagent consumption (~120 μL per sample), and sample volume (~700 μL). Copper is detected by chemiluminescence. This technique is based on the formation of a complex between copper and 1,10-phenanthroline and the subsequent emission of light during the oxidation of the complex by hydrogen peroxide. Samples are acidified to pH 1.7 and then introduced directly into a 24-well plate. Reagents are added during data acquisition via two reagent injectors. When trace metal clean protocols are employed, the reproducibility is generally less than 7% on blanks and the detection limit is 0.7 nM for seawater and 0.4 nM for freshwater. More than 100 samples per hour can be analyzed with this technique, which is simple, robust, and amenable to at-sea analysis. Seawater samples from Storm Bay in Tasmania illustrate the utility of the method for environmental science. Indeed other trace metals for which optical detection methods exist (e.g., chemiluminescence, fluorescence, and absorbance) could be adapted to the microplate-reader.

Secondary School Students' Opinions about Readers' Theatre

ERIC Educational Resources Information Center

Karabag, S. Gulin

2015-01-01

In this article, a teaching strategy which not only blends yesterday and today in a meaningful way but also powerfully integrates literacy and history will be examined. Firstly Readers' Theatre as a technique will be introduced. Secondly, the usage guidelines of Readers' Theatre will be presented. Finally the opinions of secondary school students…

Notebook Connections: Strategies for the Reader's Notebook

ERIC Educational Resources Information Center

Buckner, Aimee

2009-01-01

In "Notebook Know-How", Aimee Buckner demonstrated the power of notebooks to spark and capture students' ideas in the writing workshop. In "Notebook Connections", she turns her focus to the reading workshop, showing how to transform those "couch-potato" readers into deep thinkers. Buckner's fourth-grade students use reader's notebooks as a place…

Practicum Training for Teachers of Struggling Readers

ERIC Educational Resources Information Center

Morris, Darrell

2011-01-01

Teachers who work with struggling beginning readers need a supervised training experience that leads them to understand both how reading ability develops and how to adapt instruction to meet the needs of individual children. The practicum, in which a teacher works with one struggling reader under the supervision of an experienced and expert…

Attracting New Readers with Hip Hop Lit

ERIC Educational Resources Information Center

Meloni, Christine

2007-01-01

With the explosion of technology, librarians are not the only ones who sometimes feel that reading has taken a backseat as a recreational activity. Readers are not reading like they used to. However, while overall readership is down in almost every demographic group, African-Americans, a faction traditionally considered reluctant readers, are…

Phonological Coding in Good and Poor Readers.

ERIC Educational Resources Information Center

Briggs, Pamela; Underwood, Geoffrey

1982-01-01

A set of four experiments investigates the relationship between phonological coding and reading ability, using a picture-word interference task and a decoding task. Results with regard to both adults and children suggest that while poor readers possess weak decoding skills, good and poor readers show equivalent evidence of direct semantic and…

The Strategic Reader.

ERIC Educational Resources Information Center

Devine, James T., Ed.; And Others

1986-01-01

To add a foundation to the growing excitement among educators about the central role they play in helping learners become strategic readers, the articles in this thematic journal provide insight into current reading theory and practice. Richard Telfer's article reviews research on strategic reading and clarifies what is meant by the phrase…

Skilled deaf readers have an enhanced perceptual span in reading.

PubMed

Bélanger, Nathalie N; Slattery, Timothy J; Mayberry, Rachel I; Rayner, Keith

2012-07-01

Recent evidence suggests that, compared with hearing people, deaf people have enhanced visual attention to simple stimuli viewed in the parafovea and periphery. Although a large part of reading involves processing the fixated words in foveal vision, readers also utilize information in parafoveal vision to preprocess upcoming words and decide where to look next. In the study reported here, we investigated whether auditory deprivation affects low-level visual processing during reading by comparing the perceptual span of deaf signers who were skilled and less-skilled readers with the perceptual span of skilled hearing readers. Compared with hearing readers, the two groups of deaf readers had a larger perceptual span than would be expected given their reading ability. These results provide the first evidence that deaf readers' enhanced attentional allocation to the parafovea is used during complex cognitive tasks, such as reading.

Readers and Texts in the Primary Years. Rethinking Reading.

ERIC Educational Resources Information Center

Martin, Tony; Leather, Bob

Exploring the responses of a variety of readers from three-year-old Dominic sharing a picture book with his father to adults reading a poem by Ted Hughes, this book examines the ways in which various readers respond to different texts. The aim of the book is to develop an awareness of the issues involved in readers' responses for primary teachers.…

Teaching the Total Language with Readers Theatre.

ERIC Educational Resources Information Center

Goodman, Jess A., Jr.

Reading, writing, speech assignments for special education classes, English as a second language and many other classroom projects can be taught through the involvement created by Readers Theatre. Readers Theatre is the presentation of dialogue-type material in play form. The actors hold the script as they move through it and a narrator's voice…

Evaluation of the light scattering and the turbidity microtiter plate-based methods for the detection of the excipient-mediated drug precipitation inhibition.

PubMed

Petruševska, Marija; Urleb, Uroš; Peternel, Luka

2013-11-01

The excipient-mediated precipitation inhibition is classically determined by the quantification of the dissolved compound in the solution. In this study, two alternative approaches were evaluated, one is the light scattering (nephelometer) and other is the turbidity (plate reader) microtiter plate-based methods which are based on the quantification of the compound precipitate. Following the optimization of the nephelometer settings (beam focus, laser gain) and the experimental conditions, the screening of 23 excipients on the precipitation inhibition of poorly soluble fenofibrate and dipyridamole was performed. The light scattering method resulted in excellent correlation (r>0.91) between the calculated precipitation inhibitor parameters (PIPs) and the precipitation inhibition index (PI(classical)) obtained by the classical approach for fenofibrate and dipyridamole. Among the evaluated PIPs AUC100 (nephelometer) resulted in only four false positives and lack of false negatives. In the case of the turbidity-based method a good correlation of the PI(classical) was obtained for the PIP maximal optical density (OD(max), r=0.91), however, only for fenofibrate. In the case of the OD(max) (plate reader) five false positives and two false negatives were identified. In conclusion, the light scattering-based method outperformed the turbidity-based one and could be reliably used for identification of novel precipitation inhibitors. Copyright © 2013 Elsevier B.V. All rights reserved.

Sexism Springs Eternal--in the Reader's Digest.

ERIC Educational Resources Information Center

Zimbardo, Philip G.; Meadow, Wendy

This document reports on an empirical investigation of anti-women humor appearing in the Reader's Digest over three decades, revealing the operation of an unconscious sexist ideology. A systematic analysis was made of 1,069 jokes appearing in two featured columns of the Reader's Digest for the two-year periods 1947-48, 1957-58, and 1967-68.…

Planning Behaviour in Good and Poor Readers

ERIC Educational Resources Information Center

Mahapatra, Shamita

2016-01-01

A group of 50 good readers and a group of 50 poor readers of Grade 5 matched for age and intelligence and selected on the basis of their proficiency in reading comprehension were tested for their competence in word reading and the process of planning at three different levels, namely, perceptual, memory and conceptual in order to study the…

Verbal Reports: How Readers Process Unfamiliar Text.

ERIC Educational Resources Information Center

Marr, Mary Beth

With the use of verbal report strategies, a study was conducted to examine (1) the types of comprehension strategies readers use to process familiar and less familiar texts and (2) the differential use of think aloud strategies by average and below average readers. Subjects were 15 tenth grade male students in upstate New York. Two weeks prior to…

Technology: News Readers and Other Handy Utilities

ERIC Educational Resources Information Center

Van Horn, Royal

2004-01-01

In this article, the author discusses how there are advantages and disadvantages to using an Internet News Reader instead of a Web browser. The major advantage is that one can read the headlines and short summaries of news articles from dozens of sources quickly. Another advantage the author points out to news readers is that one gets a short…

How Do Fluent and Poor Readers' Endurance Differ in Reading?

ERIC Educational Resources Information Center

Bastug, Muhammet; Keskin, Hasan Kagan; Akyol, Mustafa

2017-01-01

It was observed in this research how endurance status of fluent readers and poor readers changed as the text became longer. 40 students of the primary school 4th-grade, 20 were fluent readers and other 20 were poor readers, participated in the research. A narrative text was utilised in the data collection process. Students' oral readings were…

Hydrodynamics of a flexible plate between pitching rigid plates

NASA Astrophysics Data System (ADS)

Kim, Junyoung; Kim, Daegyoum

2017-11-01

The dynamics of a flexible plate have been studied as a model problem in swimming and flying of animals and fluid-structure interaction of plants and flags. Motivated by fish schooling and an array of sea grasses, we investigate the dynamics of a flexible plate closely placed between two pitching rigid plates. In most studies on passive deformation of the flexible plate, the plate is immersed in a uniform flow or a wavy flow. However, in this study, the flexible plate experiences periodic deformation by the oscillatory flow generated by the prescribed pitching motion of the rigid plates. In our model, the pitching axes of the rigid plates and the clamping position of the flexible plate are aligned on the same line. The flexible plate shows various responses depending on length and pitching frequency of rigid plates, thickness of a flexible plate, and free-stream velocity. To find the effect of each variable on the response of the flexible plate, amplitude of a trailing edge and modal contribution of a flapping motion are compared, and flow structure around the flexible plate is examined.

An IoT Reader for Wireless Passive Electromagnetic Sensors.

PubMed

Galindo-Romera, Gabriel; Carnerero-Cano, Javier; Martínez-Martínez, José Juan; Herraiz-Martínez, Francisco Javier

2017-03-28

In the last years, many passive electromagnetic sensors have been reported. Some of these sensors are used for measuring harmful substances. Moreover, the response of these sensors is usually obtained with laboratory equipment. This approach highly increases the total cost and complexity of the sensing system. In this work, a novel low-cost and portable Internet-of-Things (IoT) reader for passive wireless electromagnetic sensors is proposed. The reader is used to interrogate the sensors within a short-range wireless link avoiding the direct contact with the substances under test. The IoT functionalities of the reader allows remote sensing from computers and handheld devices. For that purpose, the proposed design is based on four functional layers: the radiating layer, the RF interface, the IoT mini-computer and the power unit. In this paper a demonstrator of the proposed reader is designed and manufactured. The demonstrator shows, through the remote measurement of different substances, that the proposed system can estimate the dielectric permittivity. It has been demonstrated that a linear approximation with a small error can be extracted from the reader measurements. It is remarkable that the proposed reader can be used with other type of electromagnetic sensors, which transduce the magnitude variations in the frequency domain.

An IoT Reader for Wireless Passive Electromagnetic Sensors

PubMed Central

Galindo-Romera, Gabriel; Carnerero-Cano, Javier; Martínez-Martínez, José Juan; Herraiz-Martínez, Francisco Javier

2017-01-01

In the last years, many passive electromagnetic sensors have been reported. Some of these sensors are used for measuring harmful substances. Moreover, the response of these sensors is usually obtained with laboratory equipment. This approach highly increases the total cost and complexity of the sensing system. In this work, a novel low-cost and portable Internet-of-Things (IoT) reader for passive wireless electromagnetic sensors is proposed. The reader is used to interrogate the sensors within a short-range wireless link avoiding the direct contact with the substances under test. The IoT functionalities of the reader allows remote sensing from computers and handheld devices. For that purpose, the proposed design is based on four functional layers: the radiating layer, the RF interface, the IoT mini-computer and the power unit. In this paper a demonstrator of the proposed reader is designed and manufactured. The demonstrator shows, through the remote measurement of different substances, that the proposed system can estimate the dielectric permittivity. It has been demonstrated that a linear approximation with a small error can be extracted from the reader measurements. It is remarkable that the proposed reader can be used with other type of electromagnetic sensors, which transduce the magnitude variations in the frequency domain. PMID:28350356

Visual consequences of electronic reader use: a pilot study.

PubMed

Maducdoc, Marlon M; Haider, Asghar; Nalbandian, Angèle; Youm, Julie H; Morgan, Payam V; Crow, Robert W

2017-04-01

With the increasing prevalence of electronic readers (e-readers) for vocational and professional uses, it is important to discover if there are visual consequences in the use of these products. There are no studies in the literature quantifying the incidence or severity of eyestrain, nor are there clinical characteristics that may predispose to these symptoms with e-reader use. The primary objective of this pilot study was to assess the degree of eyestrain associated with e-reader use compared to traditional paper format. The secondary outcomes of this study were to assess the rate of eyestrain associated with e-reader use and identify any clinical characteristics that may be associated with the development of eyestrain. Forty-four students were randomly assigned to study (e-reader iPAD) and control (print) groups. Participant posture, luminosity of the room, and reading distance from reading device were measured during a 1-h session for both groups. At the end of the session, questionnaires were administered to determine symptoms. Significantly higher rates of eyestrain (p = 0.008) and irritation (p = 0.011) were found among the iPAD study group as compared to the print 'control' group. The study group was also 4.9 times more likely to report severe eyestrain (95 % CI [1.4, 16.9]). No clinical characteristics predisposing to eyestrain could be identified. These findings conclude that reading on e-readers may induce increased levels of irritation and eyestrain. Predisposing factors, etiology, and potential remedial interventions remain to be determined.

The Troubled Reader: Access to Intervention for the School Psychologist.

ERIC Educational Resources Information Center

Meredith, Kurt; Steele, Jeannie

Intended for school psychologists, the guidelines suggest ways of intervening with troubled readers. An initial chapter notes the size of the problem and asserts that school psychologists have some training to work with troubled readers. Chapter 2 reviews the reading process, addressing such aspects as the interaction of text, reader, and content…

Reading and Spelling Error Analysis of Native Arabic Dyslexic Readers

ERIC Educational Resources Information Center

Abu-rabia, Salim; Taha, Haitham

2004-01-01

This study was an investigation of reading and spelling errors of dyslexic Arabic readers ("n"=20) compared with two groups of normal readers: a young readers group, matched with the dyslexics by reading level ("n"=20) and an age-matched group ("n"=20). They were tested on reading and spelling of texts, isolated…

Evidence for Deficits in the Temporal Attention Span of Poor Readers

PubMed Central

Visser, Troy A. W.

2014-01-01

Background While poor reading is often associated with phonological deficits, many studies suggest that visual processing might also be impaired. In particular, recent research has indicated that poor readers show impaired spatial visual attention spans in partial and whole report tasks. Given the similarities between competition-based accounts for reduced visual attention span and similar explanations for impairments in sequential object processing, the present work examined whether poor readers show deficits in their “temporal attention span” – that is, their ability to rapidly and accurately process sequences of consecutive target items. Methodology/Principal Findings Poor and normal readers monitored a sequential stream of visual items for two (TT condition) or three (TTT condition) consecutive target digits. Target identification was examined using both unconditional and conditional measures of accuracy in order to gauge the overall likelihood of identifying a target and the likelihood of identifying a target given successful identification of previous items. Compared to normal readers, poor readers showed small but consistent deficits in identification across targets whether unconditional or conditional accuracy was used. Additionally, in the TTT condition, final-target conditional accuracy was poorer than unconditional accuracy, particularly for poor readers, suggesting a substantial cost arising from processing the previous two targets that was not present in normal readers. Conclusions/Significance Mirroring the differences found between poor and normal readers in spatial visual attention span, the present findings suggest two principal differences between the temporal attention spans of poor and normal readers. First, the consistent pattern of reduced performance across targets suggests increased competition amongst items within the same span for poor readers. Second, the steeper decline in final target performance amongst poor readers in the TTT

Evidence for deficits in the temporal attention span of poor readers.

PubMed

Visser, Troy A W

2014-01-01

While poor reading is often associated with phonological deficits, many studies suggest that visual processing might also be impaired. In particular, recent research has indicated that poor readers show impaired spatial visual attention spans in partial and whole report tasks. Given the similarities between competition-based accounts for reduced visual attention span and similar explanations for impairments in sequential object processing, the present work examined whether poor readers show deficits in their "temporal attention span"--that is, their ability to rapidly and accurately process sequences of consecutive target items. Poor and normal readers monitored a sequential stream of visual items for two (TT condition) or three (TTT condition) consecutive target digits. Target identification was examined using both unconditional and conditional measures of accuracy in order to gauge the overall likelihood of identifying a target and the likelihood of identifying a target given successful identification of previous items. Compared to normal readers, poor readers showed small but consistent deficits in identification across targets whether unconditional or conditional accuracy was used. Additionally, in the TTT condition, final-target conditional accuracy was poorer than unconditional accuracy, particularly for poor readers, suggesting a substantial cost arising from processing the previous two targets that was not present in normal readers. Mirroring the differences found between poor and normal readers in spatial visual attention span, the present findings suggest two principal differences between the temporal attention spans of poor and normal readers. First, the consistent pattern of reduced performance across targets suggests increased competition amongst items within the same span for poor readers. Second, the steeper decline in final target performance amongst poor readers in the TTT condition suggests a reduction in the extent of their temporal attention

Skilled Deaf Readers have an Enhanced Perceptual Span in Reading

PubMed Central

Bélanger, Nathalie N.; Slattery, Timothy J.; Mayberry, Rachel I.; Rayner, Keith

2013-01-01

Recent evidence suggests that deaf people have enhanced visual attention to simple stimuli in the parafovea in comparison to hearing people. Although a large part of reading involves processing the fixated words in foveal vision, readers also utilize information in parafoveal vision to pre-process upcoming words and decide where to look next. We investigated whether auditory deprivation affects low-level visual processing during reading, and compared the perceptual span of deaf signers who were skilled and less skilled readers to that of skilled hearing readers. Compared to hearing readers, deaf readers had a larger perceptual span than would be expected by their reading ability. These results provide the first evidence that deaf readers’ enhanced attentional allocation to the parafovea is used during a complex cognitive task such as reading. PMID:22683830

Rereading Multicultural Readers: What Definition of Multicultural Are We Buying?

ERIC Educational Resources Information Center

Shapiro, Nancy

A flood of new multicultural readers and textbooks are hitting the market for writing and literature courses at the college level. Yet there has been no systematic examination of how these readers are being used, the purposes and audiences for which they are written, or the critical reception they have received. Multicultural readers distinguish…

Gifted Male Readers: Current Understandings and Suggestions for Future Research

ERIC Educational Resources Information Center

Pagnani, Alexander R.

2013-01-01

Research literature concerning gifted male readers relies primarily on more extensive bodies of work regarding gifted males and male readers. Studied as a whole, the two halves portray a worrisome state of affairs for gifted male readers, who lag behind their female counterparts in the same patterns found across the ability spectrum. This literacy…

Passive microfluidic array card and reader

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dugan, Lawrence Christopher; Coleman, Matthew A

A microfluidic array card and reader system for analyzing a sample. The microfluidic array card includes a sample loading section for loading the sample onto the microfluidic array card, a multiplicity of array windows, and a transport section or sections for transporting the sample from the sample loading section to the array windows. The microfluidic array card reader includes a housing, a receiving section for receiving the microfluidic array card, a viewing section, and a light source that directs light to the array window of the microfluidic array card and to the viewing section.

Using Randomized Clinical Trials to Determine the Impact of Reading Intervention on Struggling Adolescent Readers: Reports of Research from Five Nationally Funded Striving Readers Grants

ERIC Educational Resources Information Center

Loadman, William; Sprague, Kim; Hamilton, Jennifer; Coffey, Deb; Faddis, Bonnie

2010-01-01

In 2005, the U.S. Department of Education awarded eight Striving Readers grants to projects around the country. The goal of Striving Readers is to improve literacy skills and achievement for struggling readers in middle and high school and to increase the research base using randomized clinical research to address improvement in adolescent…

Semantic Priming Effects in Normal versus Poor Readers

ERIC Educational Resources Information Center

Assink, Egbert M. H.; Van Bergen, Floor; Van Teeseling, Heleen; Knuijt, Paul P. N. A.

2004-01-01

The authors studied sensitivity to semantic priming, as distinct from semantic judgment, in poor readers. Association strength (high vs. low semantic association) was manipulated factorially with semantic association type (categoric vs. thematic association). Participants were 11-year-old poor readers (n = 15) who were matched with a group of…

A Comparative Review of Stratification Texts and Readers

ERIC Educational Resources Information Center

Peoples, Clayton D.

2012-01-01

Social stratification is a core substantive area within sociology. There are a number of textbooks and readers available on the market that deal with this central topic. In this article, I conduct a comparative review of (a) four stratification textbooks and (b) four stratification readers. (Contains 2 tables.)

Proficient Readers' Reading Behavior in Taiwan: The Study of Young Chinese Readers

ERIC Educational Resources Information Center

Chang, Li-Chun

2015-01-01

The purpose of this study was to explore the reading behavior of young proficient Chinese readers at preschool age. Especially, the roles of phonetic skill and Chinese Character recognition in reading comprehension were explored. 10 kindergartens were recruited to participate in the study. Subjects were 72-98 kindergarten children. Instruments…

The Negative Consequences of becoming a Good Reader: Identity Theory as a Lens for Understanding Struggling Readers, Teachers, and Reading Instruction

ERIC Educational Resources Information Center

Hall, Leigh A.

2010-01-01

Background/Context: The majority of middle school students in U.S. schools are struggling readers and lack the reading abilities needed to successfully comprehend texts, complete reading-related assignments, and learn subject matter content. Researchers have suggested that struggling readers' comprehension abilities can be improved if their…

RAC-multi: reader anti-collision algorithm for multichannel mobile RFID networks.

PubMed

Shin, Kwangcheol; Song, Wonil

2010-01-01

At present, RFID is installed on mobile devices such as mobile phones or PDAs and provides a means to obtain information about objects equipped with an RFID tag over a multi-channeled telecommunication networks. To use mobile RFIDs, reader collision problems should be addressed given that readers are continuously moving. Moreover, in a multichannel environment for mobile RFIDs, interference between adjacent channels should be considered. This work first defines a new concept of a reader collision problem between adjacent channels and then suggests a novel reader anti-collision algorithm for RFID readers that use multiple channels. To avoid interference with adjacent channels, the suggested algorithm separates data channels into odd and even numbered channels and allocates odd-numbered channels first to readers. It also sets an unused channel between the control channel and data channels to ensure that control messages and the signal of the adjacent channel experience no interference. Experimental results show that suggested algorithm shows throughput improvements ranging from 29% to 46% for tag identifications compared to the GENTLE reader anti-collision algorithm for multichannel RFID networks.

Geometric Distribution-Based Readers Scheduling Optimization Algorithm Using Artificial Immune System.

PubMed

Duan, Litian; Wang, Zizhong John; Duan, Fu

2016-11-16

In the multiple-reader environment (MRE) of radio frequency identification (RFID) system, multiple readers are often scheduled to interrogate the randomized tags via operating at different time slots or frequency channels to decrease the signal interferences. Based on this, a Geometric Distribution-based Multiple-reader Scheduling Optimization Algorithm using Artificial Immune System (GD-MRSOA-AIS) is proposed to fairly and optimally schedule the readers operating from the viewpoint of resource allocations. GD-MRSOA-AIS is composed of two parts, where a geometric distribution function combined with the fairness consideration is first introduced to generate the feasible scheduling schemes for reader operation. After that, artificial immune system (including immune clone, immune mutation and immune suppression) quickly optimize these feasible ones as the optimal scheduling scheme to ensure that readers are fairly operating with larger effective interrogation range and lower interferences. Compared with the state-of-the-art algorithm, the simulation results indicate that GD-MRSOA-AIS could efficiently schedules the multiple readers operating with a fairer resource allocation scheme, performing in larger effective interrogation range.

Geometric Distribution-Based Readers Scheduling Optimization Algorithm Using Artificial Immune System

PubMed Central

Duan, Litian; Wang, Zizhong John; Duan, Fu

2016-01-01

In the multiple-reader environment (MRE) of radio frequency identification (RFID) system, multiple readers are often scheduled to interrogate the randomized tags via operating at different time slots or frequency channels to decrease the signal interferences. Based on this, a Geometric Distribution-based Multiple-reader Scheduling Optimization Algorithm using Artificial Immune System (GD-MRSOA-AIS) is proposed to fairly and optimally schedule the readers operating from the viewpoint of resource allocations. GD-MRSOA-AIS is composed of two parts, where a geometric distribution function combined with the fairness consideration is first introduced to generate the feasible scheduling schemes for reader operation. After that, artificial immune system (including immune clone, immune mutation and immune suppression) quickly optimize these feasible ones as the optimal scheduling scheme to ensure that readers are fairly operating with larger effective interrogation range and lower interferences. Compared with the state-of-the-art algorithm, the simulation results indicate that GD-MRSOA-AIS could efficiently schedules the multiple readers operating with a fairer resource allocation scheme, performing in larger effective interrogation range. PMID:27854342

RAC-Multi: Reader Anti-Collision Algorithm for Multichannel Mobile RFID Networks

PubMed Central

Shin, Kwangcheol; Song, Wonil

2010-01-01

At present, RFID is installed on mobile devices such as mobile phones or PDAs and provides a means to obtain information about objects equipped with an RFID tag over a multi-channeled telecommunication networks. To use mobile RFIDs, reader collision problems should be addressed given that readers are continuously moving. Moreover, in a multichannel environment for mobile RFIDs, interference between adjacent channels should be considered. This work first defines a new concept of a reader collision problem between adjacent channels and then suggests a novel reader anti-collision algorithm for RFID readers that use multiple channels. To avoid interference with adjacent channels, the suggested algorithm separates data channels into odd and even numbered channels and allocates odd-numbered channels first to readers. It also sets an unused channel between the control channel and data channels to ensure that control messages and the signal of the adjacent channel experience no interference. Experimental results show that suggested algorithm shows throughput improvements ranging from 29% to 46% for tag identifications compared to the GENTLE reader anti-collision algorithm for multichannel RFID networks. PMID:22315528

Laboratory evaluation of 3M Petrifilms and University of Minnesota Bi-plates as potential on-farm tests for clinical mastitis.

PubMed

McCarron, J L; Keefe, G P; McKenna, S L B; Dohoo, I R; Poole, D E

2009-05-01

The objective was to determine test characteristics and compare 2 potential on-farm culture systems for clinical mastitis, the Minnesota Easy Culture System II Bi-plate and Petrifilm. The tests were evaluated using clinically positive mastitic milk samples (n = 282) to determine their ability to differentiate appropriate treatment groups; all cases that had gram-positive growth were considered treatment candidates (n = 161), whereas cases that grew gram-negative organisms only or yielded no bacterial growth were classified as no treatment (n = 121). For Petrifilm, both undiluted and 1:10 diluted milk samples were used. To create treatment categories, 2 types of Petrifilms were used, Aerobic Count (AC) and Coliform Count (CC). Both Bi-plates and Petrifilms were read after 24 h of incubation. Analysis was conducted at various colony count thresholds for the Petrifilm test system. The combination of Petrifilms that had the highest sensitivity classified a case as gram-negative if there were > or =20 colonies present on the CC. If there were <20 colonies present on the CC and >5 colonies present on the AC, a case would be classified as gram-positive. The Bi-plate had a sensitivity of 97.9% and a specificity of 68.6%. The Petrifilm test system had a sensitivity of 93.8% and a specificity of 70.1%. There was no significant difference in the sensitivities between the tests. All Bi-plates and Petrifilms were read by a laboratory technician and a group of masked readers with limited microbiology training. Kappa values for the masked readers were 0.75 for Bi-plates and 0.84 and 0.86 for AC and CC Petrifilms, respectively. The Bi-plate and Petrifilm were able to successfully categorize clinical cases of mastitis into 2 treatments based on their ability to detect the presence of a gram-positive organism. Neither method had the ability to determine if a sample was contaminated. The results of this study indicate that both tests were able to appropriately categorize cases, which

Accelerated Reader Program: What Do Teachers Really Think?

ERIC Educational Resources Information Center

Smith, Amy Frances; Westberg, Karen; Hejny, Anne

2017-01-01

What do teachers really think about the Accelerated Reader program, a widely used supplemental, independent reading program in which their students read fiction and non-fiction books of their choice and take brief online comprehension quizzes about the books? The Accelerated Reader (AR) program was designed by Renaissance Learning Company to…

Disabled readers: their intellectual and perceptual capacities at differing ages.

PubMed

Miller, J W; McKenna, M C

1981-04-01

To investigate the multiple relationships between selected measures of intelligence and perception and reading achievement a group of young, poor readers (MCA = 8.4 yr.) and a group of older, poor readers (MCA = 11.2 yr.) were given the Gates-MacGinitie Achievement Test, Peabody Picture Vocabulary Test, Slosson Intelligence Test, Spatial Orientation Memory Test, and Auditory Discrimination Test. The combination of the four predictor variables accounted for a significant amount of the variance in reading vocabulary and comprehension for youngest and older poor readers. Greater variance was accounted for in the reading achievement of younger students than of older students. Perceptual abilities related more strongly for younger students, while intelligence related more strongly for older students. Questions are raised about the validity of using expectancy formulae with younger disabled readers and the "learning disabilities" approach with older disabled readers.

Rockin' Readers Coordinator Handbook.

ERIC Educational Resources Information Center

Alachua County Schools, Gainesville, FL.

This coordinator's handbook describes the "Rockin' Readers" program, in which senior-citizen volunteers are matched with specifically targeted at-risk children (usually of kindergarten age or slightly older) in Alachua County, Florida, who tested below their peer group in language development and reading readiness skills. The handbook…

Designating Reader Perspective to Increase Comprehension and Interest

ERIC Educational Resources Information Center

Ramsay, Crystal M.; Sperling, Rayne A.

2010-01-01

In three experiments we examined whether reader perspective on a long expository text could be manipulated such that increased text interest and enhancement of two comprehension outcomes would result. In Experiment 1 we verified the viability of a new text for experimental purposes. We then assigned readers a perspective before reading in…

Accelerated Reader[TM]. What Works Clearinghouse Intervention Report

ERIC Educational Resources Information Center

What Works Clearinghouse, 2010

2010-01-01

"Accelerated Reader"[TM] is a guided reading intervention used to supplement regular reading instruction in K-12 classrooms. Its aim is to improve students' reading skills through reading practice and quizzes on the books students read. The "Accelerated Reader"[TM] program calls for students to select and read a book and then…

Prevalence and Nature of Late-Emerging Poor Readers

ERIC Educational Resources Information Center

Catts, Hugh W.; Compton, Donald; Tomblin, J. Bruce; Bridges, Mindy Sittner

2012-01-01

Some children demonstrate adequate or better reading achievement in early school grades but fall significantly behind their peers in later grades. These children are often referred to as late-emerging poor readers. In this study, we investigated the prevalence and heterogeneity of these poor readers. We also examined the early language and…

Spectrophotometric determination of various polyanions with polymeric film optodes using microtiter plate reader.

PubMed

Dürüst, Nedime; Meyerhoff, Mark E; Unal, Nazangül; Naç, Sibel

2011-08-05

Polycation-sensitive membrane optodes based on the chromoionophore 2',7'-dichlorofluorescein octadecylester (DCFOE) have previously been developed and used for determination of heparin via a titrimetric method. In this study, it is shown that some other important polyanions such as PPS (pentosan polysulfate), DNA, xanthan, Na-alginate, and carrageenan (food additive) can also be readily determined by using DCFOE-based microtiter plate-format optodes (MPOs) and polycationic titrants that bind these polyanionic species. The optical sensors are prepared with poly(vinyl chloride) (PVC), polyurethane (PU), bis(2-ethylhexyl)sebacate (DOS), and 2',7'-dichlorofluorescein octadecylester (DCFOE) and exhibit reproducible and sensitive absorbance changes in response to the varying polycationic titrant concentrations. Three different polycations; protamine, poly-l-lysine and poly-l-arginine, are employed as titrants. The method has a detection limit of 1 μg mL(-1), and a dynamic range of 1-40 μg mL(-1). After the quantitative determinations are successfully demonstrated in buffered solutions, similar titrations are also performed in real samples. The method is validated by recovery studies in these samples. The average polyanion recoveries were quantitative [99.7(±1.3) % for pastry cream with vanillin (protamine titrant); 100.4 (±3.3) % for pastry gel with strawberry(PLA titrant), and 102.9(±2.0) % for pastry gel with strawberry (PLL titrant)]. Copyright © 2011 Elsevier B.V. All rights reserved.

Alternate reading strategies and variable asymmetry of the planum temporale in adult resilient readers.

PubMed

Welcome, Suzanne E; Leonard, Christiana M; Chiarello, Christine

2010-05-01

Resilient readers are characterized by impaired phonological processing despite skilled text comprehension. We investigated orthographic and semantic processing in resilient readers to examine mechanisms of compensation for poor phonological decoding. Performance on phonological (phoneme deletion, pseudoword reading), orthographic (orthographic choice, orthographic analogy), and semantic (semantic priming, homograph resolution) tasks was compared between resilient, poor and proficient readers. Asymmetry of the planum temporale was investigated in order to determine whether atypical readers showed unusual morphology in this language-relevant region. Resilient readers showed deficits on phonological tasks similar to those shown by poor readers. We obtained no evidence that resilient readers compensate via superior orthographic processing, as they showed neither exceptional orthographic skill nor increased reliance on orthography to guide pronunciation. Resilient readers benefited more than poor or proficient readers from semantic relationships between words and experienced greater difficulty when such relationships were not present. We suggest, therefore, that resilient readers compensate for poor phonological decoding via greater reliance on word meaning relationships. The reading groups did not differ in mean asymmetry of the planum temporale. However, resilient readers showed greater variability in planar asymmetry than proficient readers. Poor readers also showed a trend towards greater variability in planar asymmetry, with more poor readers than proficient readers showing extreme asymmetry. Such increased variability suggests that university students with less reading skill display less well regulated brain anatomy than proficient readers. Copyright 2010 Elsevier Inc. All rights reserved.

Organizing Instruction for Struggling Readers in Tutorial Settings

ERIC Educational Resources Information Center

Mokhtari, Kouider; Hutchison, Amy C.; Edwards, Patricia A.

2010-01-01

In this article, the authors suggest that many of the problems struggling readers encounter while reading stem from distinct yet fundamental sources of difficulty related to the types of text read (print or online), the task or activity readers engage in, and the sociocultural context of reading. The authors further argue that although these…

Guiding Readers to New Understandings through Electronic Text.

ERIC Educational Resources Information Center

Patterson, Nancy, Ed.; Pipkin, Gloria, Ed.

2001-01-01

Argues that computer technology can help to engage struggling readers in meaningful transactions with text. Lists and describes seven web sites that will captivate reluctant readers. Notes three web sites that send students on "WebQuests" to transact with text in order to build knowledge. Discusses other ways to engage students in text via…

Through the Sliding Glass Door: #EmpowerTheReader

ERIC Educational Resources Information Center

Johnson, Nancy J.; Koss, Melanie D.; Martinez, Miriam

2018-01-01

This article seeks to complicate the understanding of Bishop's (1990) metaphor of mirrors, windows, and sliding glass doors, with particular emphasis on sliding glass doors and the emotional connections needed for readers to move through them. The authors begin by examining the importance of the reader and the characters he or she meets. Next, the…

Engaging Literacy: A Case Study in the Use of e-Reader Devices

ERIC Educational Resources Information Center

Lettenmaier, Kris

2013-01-01

The purpose of this case study was to determine to what extent e-readers affected struggling readers as a part of reading instruction at the middle school level to improve students' literacy skills of comprehension, fluency, and vocabulary, and to show how e-readers affected engagement and self-efficacy of struggling readers to read and use…

Type testing the Model 6600 plus automatic TLD reader.

PubMed

Velbeck, K J; Luo, L Z; Streetz, K L

2006-01-01

The Harshaw Model 6600 Plus is a reader with a capacity for 200 TLD cards or 800 extremity cards. The new unit integrates more functionality, and significantly automates the QC and calibration process compared to the Model 6600. The Model 6600 Plus was tested against the IEC 61066 (1991-2012) procedures using Harshaw TLD-700H and TLD-600H, LiF:Mg,Cu,P based TLD Cards. An overview of the type testing procedures is presented. These include batch homogeneity, detection threshold, reproducibility, linearity, self-irradiation, residue, light effects on dosemeter, light leakage to reader, voltage and frequency, dropping and reader stability. The new TLD reader was found to meet all the IEC criteria by large margins and appears well suited for whole body, extremity and environmental dosimetry applications, with a high degree of dosimetric performance.

Flexible electronics enters the e-reader market

NASA Astrophysics Data System (ADS)

Banks, Michael

2010-02-01

A company that was spun off from the physics department at the University of Cambridge in the UK 10 years ago released its first product last month. Plastic Logic, founded by Henning Sirringhaus and Richard Friend, launched an electronic reader that can display books, magazines and newspapers on a flexible, lightweight plastic display. The reader commercializes pioneering work first started over 20 years ago at the lab by the two physicists, who are based in the department's optoelectronics group.

A Treatise on Equivalent-Plate Stiffnesses for Stiffened Laminated-Composite Plates and Plate-Like Lattices

NASA Technical Reports Server (NTRS)

Nemeth, Michael P.

2011-01-01

A survey of studies conducted since 1914 on the use of equivalent-plate stiffnesses in modeling the overall, stiffness-critical response of stiffened plates and shells is presented. Two detailed, comprehensive derivations of first-approximation equivalent-plate stiffnesses are also presented that are based on the Reissner-Mindlin-type, first-order transverse-shear deformation theory for anisotropic plates. Equivalent-plate stiffness expressions, and a corresponding symbolic manipulation computer program, are also presented for several different stiffener configurations. These expressions are very general and exhibit the full range of anisotropies permitted by the Reissner-Mindlin-type, first-order transverse-shear deformation theory for anisotropic plates. The expressions presented in the present study were also compared with available, previously published results. For the most part, the previously published results are for special cases of the general expressions presented herein and are almost in complete agreement. Analysis is also presented that extends the use of the equivalent-plate stiffness expressions to sandwich plates.

Abdullah's Genuine Indonesian Curry Powder--about Early Readers and Differentiated Teaching.

ERIC Educational Resources Information Center

Hansen, Vagn Rabol; Robenhagen, Ole

A study established some characteristics of early readers and their homes and families, how they learned to read, and how their surroundings, and particularly the school, reacted. Approximately 300 Danish early readers and their families were interviewed and completed questionnaires. Results indicated that: (1) half the early readers had either a…

Developmental Trajectories for Children With Dyslexia and Low IQ Poor Readers

PubMed Central

2016-01-01

Reading difficulties are found in children with both high and low IQ and it is now clear that both groups exhibit difficulties in phonological processing. Here, we apply the developmental trajectories approach, a new methodology developed for studying language and cognitive impairments in developmental disorders, to both poor reader groups. The trajectory methodology enables identification of atypical versus delayed development in datasets gathered using group matching designs. Regarding the cognitive predictors of reading, which here are phonological awareness, phonological short-term memory (PSTM) and rapid automatized naming (RAN), the method showed that trajectories for the two groups diverged markedly. Children with dyslexia showed atypical development in phonological awareness, while low IQ poor readers showed developmental delay. Low IQ poor readers showed atypical PSTM and RAN development, but children with dyslexia showed developmental delay. These divergent trajectories may have important ramifications for supporting each type of poor reader, although all poor readers showed weakness in all areas. Regarding auditory processing, the developmental trajectories were very similar for the two poor reader groups. However, children with dyslexia demonstrated developmental delay for auditory discrimination of Duration, while the low IQ children showed atypical development on this measure. The data show that, regardless of IQ, poor readers have developmental trajectories that differ from typically developing children. The trajectories approach enables differences in trajectory classification to be identified across poor reader group, as well as specifying the individual nature of these trajectories. PMID:27110928

Brain Activation during Sentence Comprehension among Good and Poor Readers

PubMed Central

Keller, Timothy A.; Cherkassky, Vladimir L.; Lee, Donghoon; Hoeft, Fumiko; Whitfield-Gabrieli, Susan; Gabrieli, John D. E.; Just, Marcel Adam

2008-01-01

This study sought to increase current understanding of the neuro-psychological basis of poor reading ability by using fMRI to examine brain activation during a visual sentence comprehension task among good and poor readers in the third (n = 32) and fifth (n = 35) grades. Reading ability, age, and the combination of both factors made unique contributions to cortical activation. The main finding was of parietotemporal underactivation (less activation than controls) among poor readers at the 2 grade levels. A positive linear relationship (spanning both the poor and good readers) was found between reading ability and activation in the left posterior middle temporal and postcentral gyri and in the right inferior parietal lobule such that activation increased with reading ability. Different developmental trajectories characterized good and poor readers in the left angular gyrus: activation increased with age among good readers, a change that failed to occur among poor readers. The parietotemporal cortex is discussed in terms of its role in reading acquisition, with the left angular gyrus playing a key role. It is proposed that the functioning of the cortical network underlying reading is dependent on a combination of interacting factors, including physiological maturation, neural integrity, skill level, and the nature of the task. PMID:17317678

Cold plate

DOEpatents

Marroquin, Christopher M.; O'Connell, Kevin M.; Schultz, Mark D.; Tian, Shurong

2018-02-13

A cold plate, an electronic assembly including a cold plate, and a method for forming a cold plate are provided. The cold plate includes an interface plate and an opposing plate that form a plenum. The cold plate includes a plurality of active areas arranged for alignment over respective heat generating portions of an electronic assembly, and non-active areas between the active areas. A cooling fluid flows through the plenum. The plenum, at the non-active areas, has a reduced width and/or reduced height relative to the plenum at the active areas. The reduced width and/or height of the plenum, and exterior dimensions of cold plate, at the non-active areas allow the non-active areas to flex to accommodate surface variations of the electronics assembly. The reduced width and/or height non-active areas can be specifically shaped to fit between physical features of the electronics assembly.

Directional Radio-Frequency Identification Tag Reader

NASA Technical Reports Server (NTRS)

Medelius, Pedro J.; Taylor, John D.; Henderson, John J.

2004-01-01

A directional radio-frequency identification (RFID) tag reader has been designed to facilitate finding a specific object among many objects in a crowded room. The device could be an adjunct to an electronic inventory system that tracks RFID-tagged objects as they move through reader-equipped doorways. Whereas commercial RFID-tag readers do not measure directions to tagged objects, the device is equipped with a phased-array antenna and a received signal-strength indicator (RSSI) circuit for measuring direction. At the beginning of operation, it is set to address only the RFID tag of interest. It then continuously transmits a signal to interrogate that tag while varying the radiation pattern of the antenna. It identifies the direction to the tag as the radiation pattern direction of peak strength of the signal returned by the tag. An approximate distance to the tag is calculated from the peak signal strength. The direction and distance can be displayed on a screen. A prototype containing a Yagi antenna was found to be capable of detecting a 915.5-MHz tag at a distance of approximately equal to 15 ft (approximately equal to 4.6 m).

A Combinatorial Platform for the Optimization of Peptidomimetic Methyl-Lysine Reader Antagonists

NASA Astrophysics Data System (ADS)

Barnash, Kimberly D.

Post-translational modification of histone N-terminal tails mediates chromatin compaction and, consequently, DNA replication, transcription, and repair. While numerous post-translational modifications decorate histone tails, lysine methylation is an abundant mark important for both gene activation and repression. Methyl-lysine (Kme) readers function through binding mono-, di-, or trimethyl-lysine. Chemical intervention of Kme readers faces numerous challenges due to the broad surface-groove interactions between readers and their cognate histone peptides; yet, the increasing interest in understanding chromatin-modifying complexes suggests tractable lead compounds for Kme readers are critical for elucidating the mechanisms of chromatin dysregulation in disease states and validating the druggability of these domains and complexes. The successful discovery of a peptide-derived chemical probe, UNC3866, for the Polycomb repressive complex 1 (PRC1) chromodomain Kme readers has proven the potential for selective peptidomimetic inhibition of reader function. Unfortunately, the systematic modification of peptides-to-peptidomimetics is a costly and inefficient strategy for target-class hit discovery against Kme readers. Through the exploration of biased chemical space via combinatorial on-bead libraries, we have developed two concurrent methodologies for Kme reader chemical probe discovery. We employ biased peptide combinatorial libraries as a hit discovery strategy with subsequent optimization via iterative targeted libraries. Peptide-to-peptidomimetic optimization through targeted library design was applied based on structure-guided library design around the interaction of the endogenous peptide ligand with three target Kme readers. Efforts targeting the WD40 reader EED led to the discovery of the 3-mer peptidomimetic ligand UNC5115 while combinatorial repurposing of UNC3866 for off-target chromodomains resulted in the discovery of UNC4991, a CDYL/2-selective ligand, and

A General Audiovisual Temporal Processing Deficit in Adult Readers With Dyslexia.

PubMed

Francisco, Ana A; Jesse, Alexandra; Groen, Margriet A; McQueen, James M

2017-01-01

Because reading is an audiovisual process, reading impairment may reflect an audiovisual processing deficit. The aim of the present study was to test the existence and scope of such a deficit in adult readers with dyslexia. We tested 39 typical readers and 51 adult readers with dyslexia on their sensitivity to the simultaneity of audiovisual speech and nonspeech stimuli, their time window of audiovisual integration for speech (using incongruent /aCa/ syllables), and their audiovisual perception of phonetic categories. Adult readers with dyslexia showed less sensitivity to audiovisual simultaneity than typical readers for both speech and nonspeech events. We found no differences between readers with dyslexia and typical readers in the temporal window of integration for audiovisual speech or in the audiovisual perception of phonetic categories. The results suggest an audiovisual temporal deficit in dyslexia that is not specific to speech-related events. But the differences found for audiovisual temporal sensitivity did not translate into a deficit in audiovisual speech perception. Hence, there seems to be a hiatus between simultaneity judgment and perception, suggesting a multisensory system that uses different mechanisms across tasks. Alternatively, it is possible that the audiovisual deficit in dyslexia is only observable when explicit judgments about audiovisual simultaneity are required.

The Role of the Teacher in Reader's Theater Instruction

ERIC Educational Resources Information Center

Rasisnski, Timothy; Stokes, Faida; Young, Chase

2017-01-01

Reader's Theater is a transformative and influential instructional tool for reading with far-reaching benefits for all students. Teachers are critical players in the use of Readers Theater in classroom; the effects of Reader's Theater are a direct result of a teacher's involvement. These effects include an increase in word recognition, fluency,…

French Immersion Experience and Reading Skill Development in At-Risk Readers

ERIC Educational Resources Information Center

Kruk, Richard S.; Reynolds, Kristin A. A.

2012-01-01

We tracked the developmental influences of exposure to French on developing English phonological awareness, decoding and reading comprehension of English-speaking at-risk readers from Grade 1 to Grade 3. Teacher-nominated at-risk readers were matched with not-at-risk readers in French immersion and English language programs. Exposure to spoken…

Addressing Learning Disabilities with UDL and Technology: Strategic Reader

ERIC Educational Resources Information Center

Hall, Tracey E.; Cohen, Nicole; Vue, Ge; Ganley, Patricia

2015-01-01

CAST created "Strategic Reader," a technology-based system blending Universal Design for Learning (UDL) and Curriculum-Based Measurement (CBM) in a digital learning environment to improve reading comprehension instruction. This experimental study evaluates the effectiveness of Strategic Reader using two treatment conditions for measuring…

Postdecisional counterfactual thinking by actors and readers.

PubMed

Girotto, Vittorio; Ferrante, Donatella; Pighin, Stefania; Gonzalez, Michel

2007-06-01

How do individuals think counterfactually about the outcomes of their decisions? Most previous studies have investigated how readers think about fictional stories, rather than how actors think about events they have actually experienced. We assumed that differences in individuals' roles (actor vs. reader) can make different information available, which in turn can affect counterfactual thinking. Hence, we predicted an effect of role on postdecisional counterfactual thinking. Reporting the results of eight studies, we show that readers undo the negative outcome of a story by undoing the protagonist's choice to tackle a given problem, rather than the protagonist's unsuccessful attempt to solve it. But actors who make the same choice and experience the same negative outcome as the protagonist undo this outcome by altering features of the problem. We also show that this effect does not depend on motivational factors. These results contradict current accounts of counterfactual thinking and demonstrate the necessity of investigating the counterfactual thoughts of individuals in varied roles.

A cost-effective smartphone-based antimicrobial susceptibility test reader for drug resistance testing (Conference Presentation)

NASA Astrophysics Data System (ADS)

Feng, Steve W.; Tseng, Derek; Di Carlo, Dino; Garner, Omai B.; Ozcan, Aydogan

2017-03-01

Antimicrobial susceptibility testing (AST) is commonly used for determining microbial drug resistance, but routine testing, which can significantly reduce the spread of multi-drug resistant organisms, is not regularly performed in resource-limited and field-settings due to technological challenges and lack of trained diagnosticians. We developed a portable cost-effective smartphone-based colorimetric 96-well microtiter plate (MTP) reader capable of automated AST without the need for a trained diagnostician. This system is composed of a smartphone used in conjunction with a 3D-printed opto-mechanical attachment, which holds a set of inexpensive light-emitting-diodes and fiber-optic cables coupled to the 96-well MTP for enabling the capture of the transmitted light through each well by the smartphone camera. Images of the MTP plate are captured at multiple exposures and uploaded to a local or remote server (e.g., a laptop) for automated processing/analysis of the results using a custom-designed smartphone application. Each set of images are combined to generate a high dynamic-range image and analyzed for well turbidity (indicative of bacterial growth), followed by interpretative analysis per plate to determine minimum inhibitory concentration (MIC) and drug susceptibility for the specific bacterium. Results are returned to the originating device within 1 minute and shown to the user in tabular form. We demonstrated the capability of this platform using MTPs prepared with 17 antibiotic drugs targeting Gram-negative bacteria and tested 82 patient isolate MTPs of Klebsiella pneumoniae, achieving well turbidity accuracy of 98.19%, MIC accuracy of 95.15%, and drug susceptibility interpretation accuracy of 99.06%, meeting the FDA defined criteria for AST.

Demonstration of Multi- and Single-Reader Sample Size Program for Diagnostic Studies software.

PubMed

Hillis, Stephen L; Schartz, Kevin M

2015-02-01

The recently released software Multi- and Single-Reader Sample Size Sample Size Program for Diagnostic Studies , written by Kevin Schartz and Stephen Hillis, performs sample size computations for diagnostic reader-performance studies. The program computes the sample size needed to detect a specified difference in a reader performance measure between two modalities, when using the analysis methods initially proposed by Dorfman, Berbaum, and Metz (DBM) and Obuchowski and Rockette (OR), and later unified and improved by Hillis and colleagues. A commonly used reader performance measure is the area under the receiver-operating-characteristic curve. The program can be used with typical common reader-performance measures which can be estimated parametrically or nonparametrically. The program has an easy-to-use step-by-step intuitive interface that walks the user through the entry of the needed information. Features of the software include the following: (1) choice of several study designs; (2) choice of inputs obtained from either OR or DBM analyses; (3) choice of three different inference situations: both readers and cases random, readers fixed and cases random, and readers random and cases fixed; (4) choice of two types of hypotheses: equivalence or noninferiority; (6) choice of two output formats: power for specified case and reader sample sizes, or a listing of case-reader combinations that provide a specified power; (7) choice of single or multi-reader analyses; and (8) functionality in Windows, Mac OS, and Linux.

Resolving Struggling Readers' Homework Difficulties: A Social Cognitive Perspective

ERIC Educational Resources Information Center

Margolis, Howard; Mccabe, Patrick

2004-01-01

Struggling readers often fail to complete homework or complete it in a slipshod, haphazard fashion. Often, this adversely affects grades, erodes motivation for academics, and causes conflict between readers, parents, and school personnel. To help teachers and educational consultants (e.g., reading specialists, school psychologists) help struggling…

A Study of How the Family Is Portrayed in Basal Readers.

ERIC Educational Resources Information Center

Evans, Nancy J.

A study examined the ways that basal readers portrayed the family. It was expected that the readers would give only token representation of both parents working or of one-parent or mixed marriage families, and that very few portrayals of reading or of reading materials would be found. Eight basal readers from 6 publishing companies for grades 1…

A General Audiovisual Temporal Processing Deficit in Adult Readers with Dyslexia

ERIC Educational Resources Information Center

Francisco, Ana A.; Jesse, Alexandra; Groen, Margriet A.; McQueen, James M.

2017-01-01

Purpose: Because reading is an audiovisual process, reading impairment may reflect an audiovisual processing deficit. The aim of the present study was to test the existence and scope of such a deficit in adult readers with dyslexia. Method: We tested 39 typical readers and 51 adult readers with dyslexia on their sensitivity to the simultaneity of…

Reading between the lines: Societal norms in Sierra Leonean readers

NASA Astrophysics Data System (ADS)

Brams, Patricia

1980-12-01

A content analysis of primary school readers of Sierra Leone revealed that the particular modern and traditional normative aspirations expressed in the National Development Plan for 1974/75-1978/79 were also generally reflected in the children's readers. Compared to the 1964 readers, the first indigenous readers developed circa 1977 contained markedly greater emphasis on traditional norms, though modernity norms continued to dominate, and substantially less emphasis on Efficacy (a central aspect of modernity) and on Non-parochial Affiliation. This closely corresponded with the intent of the National Plan to continue on a modernizing course employing the traditional norms of Manual Labor and Social Cohesion in a grassroots effort to develop the agricultural sector, with nationalism in a less important role. Apart from lesser emphasis on Efficacy and underemphasis on the Value of Education which were discordant with national goals, the 1977 readers seem to provide children and teachers with a fairly accurate image of the national ethos. This may help to account for the generally positive relationship that has been found between schooling and economic development.

Growing Young Gifted Readers

ERIC Educational Resources Information Center

Wood, Patricia F.

2009-01-01

There is great pressure on parents to teach children to read as early as possible. In reality, precocious (early advanced) readers seem to almost master the skill on their own, without the assistance of highly touted, commercially available programs. The 18-month-old toddler who names the letters on alphabet blocks; or the 26-month-old who can…

A READER OF PASHTO.

ERIC Educational Resources Information Center

PENZL, HERBERT

AFTER A BRIEF INTRODUCTION TO THE USE OF THIS READER AND A SUMMARY OF THE PASHTO LANGUAGE, THE AUTHOR PRESENTS 25 UNITS OF READING SELECTIONS AND CORRELATED EXERCISES. A TYPICAL LESSON CONSISTS OF--(1) A SHORT PASHTO TEXT IN TYPEWRITTEN ARABIC-PERSIAN FORM, (2) A ROMANIZED TRANSCRIPTION OF THIS TEXT INDICATING PRONUNCIATION, (3) A GLOSSARY OF NEW…

78 FR 17781 - Transportation Worker Identification Credential (TWIC)-Reader Requirements

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-22

...In this Notice of Proposed Rulemaking (NPRM), the Coast Guard proposes to require owners and operators of certain vessels and facilities regulated by the Coast Guard to use electronic readers designed to work with the Transportation Worker Identification Credential (TWIC) as an access control measure. This NPRM also proposes additional requirements associated with electronic TWIC readers, including recordkeeping requirements for those owners and operators required to use an electronic TWIC reader, and security plan amendments to incorporate TWIC requirements. The TWIC program, including the proposed TWIC reader requirements in this rule, is an important component of the Coast Guard's multi-layered system of access control requirements and other measures designed to enhance maritime security. This rulemaking action, once final, would build upon existing Coast Guard regulations designed to ensure that only individuals who hold a TWIC are granted unescorted access to secure areas at those locations. The Coast Guard has already promulgated regulations pursuant to the Maritime Transportation Security Act of 2002 (MTSA) that require mariners and other individuals to obtain a TWIC and present it for inspection by security personnel prior to gaining access to such secure areas. By requiring certain vessels and facilities to perform TWIC inspections using electronic TWIC readers, this rulemaking would further enhance security at those locations. This rulemaking would also implement the Security and Accountability For Every Port Act of 2006 electronic TWIC reader requirements.

Accelerated Reader/Reading Renaissance. What Works Clearinghouse Intervention Report

ERIC Educational Resources Information Center

What Works Clearinghouse, 2007

2007-01-01

The Accelerated Reader/Reading Renaissance program (now called Accelerated Reader Best Classroom Practices) is a guided reading intervention in which teachers direct student reading of text. It involves two components. Reading Renaissance, the first component, is a set of recommended principles on guided reading (or teachers' direction of…

CT radiation profile width measurement using CR imaging plate raw data

PubMed Central

Yang, Chang‐Ying Joseph

2015-01-01

This technical note demonstrates computed tomography (CT) radiation profile measurement using computed radiography (CR) imaging plate raw data showing it is possible to perform the CT collimation width measurement using a single scan without saturating the imaging plate. Previously described methods require careful adjustments to the CR reader settings in order to avoid signal clipping in the CR processed image. CT radiation profile measurements were taken as part of routine quality control on 14 CT scanners from four vendors. CR cassettes were placed on the CT scanner bed, raised to isocenter, and leveled. Axial scans were taken at all available collimations, advancing the cassette for each scan. The CR plates were processed and raw CR data were analyzed using MATLAB scripts to measure collimation widths. The raw data approach was compared with previously established methodology. The quality control analysis scripts are released as open source using creative commons licensing. A log‐linear relationship was found between raw pixel value and air kerma, and raw data collimation width measurements were in agreement with CR‐processed, bit‐reduced data, using previously described methodology. The raw data approach, with intrinsically wider dynamic range, allows improved measurement flexibility and precision. As a result, we demonstrate a methodology for CT collimation width measurements using a single CT scan and without the need for CR scanning parameter adjustments which is more convenient for routine quality control work. PACS numbers: 87.57.Q‐, 87.59.bd, 87.57.uq PMID:26699559

Let's Teach Unskilled Readers like Skilled Readers: A Closer Look at Meaning-Based Instruction.

ERIC Educational Resources Information Center

Dowhower, Sarah L.; Speidel, Gisela E.

1989-01-01

Analyzes transcripts of four reading lessons based on the Kamehameha Reading Program (emphasizing discussion and oral language within group reading lessons) given to three low-ability second grade readers. Identifies six components important to reading success, including contextual-based lessons, minimal skills instruction, and active quests for…

Composite and Component Plates, Plate Non-rigidity, and the Steadiness of Plate Motion From Marine Geophysical and Space Geodetic Data

NASA Astrophysics Data System (ADS)

Gordon, R. G.; Argus, D. F.; DeMets, C.

2017-12-01

Plate tectonic theory has evolved since its birth 50 years ago. In particular, we now recognize that some of the originally proposed plates such as the Indo-Australia plate, the Africa plate, and the America plate are what we term "composite" plates—entities that contain no traditionally defined narrow plate boundaries, but are composed of multiple approximately rigid regions, which we term "component" plates, separated by diffuse plate boundaries. The best example of a composite plate is the Indo-Australia composite plate, which consists of the India, Capricorn, Australia, and Macquarie component plates and multiple intervening diffuse oceanic plate boundaries. The poles of relative rotation between component plates tend to lie in their mutual diffuse plate boundary. Outside of diffuse boundaries, plate rigidity has proven to be an excellent approximation, but the non-closure of some plate circuits indicates that stable plate interiors have a small but significant non-rigidity that may add up to 1 to 2 mm/a across any individual plate and may be partly due to horizontal thermal contraction of oceanic lithosphere. The greatest observational challenge to plate rigidity is posed by the Pacific-Cocos-Nazca plate circuit, which fails closure by 15 ±4 mm/a. The most rapid deformation of the plates observed with space geodesy is generated by solid Earth's viscous response to unloading of the late Pleistocene ice sheets. Differences between different realizations of global plate velocities from space geodesy appear in some cases to be due to differing assumptions about the motion of the geocenter, which affects estimated plate relative angular velocities and estimated vertical motion at geodetic sites. Comparison of space geodetic and marine geophysical plate motion rates and directions has demonstrated that plate motion is nearly steady, which allows plate boundary conditions to be applied to inter-seismic strain accumulation due to locking of specific faults. In

Usability and Accessibility of eBay by Screen Reader

NASA Astrophysics Data System (ADS)

Buzzi, Maria Claudia; Buzzi, Marina; Leporini, Barbara; Akhter, Fahim

The evolution of Information and Communication Technology and the rapid growth of the Internet have fuelled a great diffusion of eCommerce websites. Usually these sites have complex layouts crowded with active elements, and thus are difficult to navigate via screen reader. Interactive environments should be properly designed and delivered to everyone, including the blind, who usually use screen readers to interact with their computers. In this paper we investigate the interaction of blind users with eBay, a popular eCommerce website, and discuss how using the W3C Accessible Rich Internet Applications (WAI-ARIA) suite could improve the user experience when navigating via screen reader.

An analysis of the reading strategies used by adult and student deaf readers.

PubMed

Banner, Alyssa; Wang, Ye

2011-01-01

The purpose of this study was to identify and examine effective reading strategies used by adult deaf readers compared with student deaf readers. There were a total of 11 participants: 5 deaf adults ranging from 27 to 36 years and 6 deaf students ranging from 16 to 20 years. Assessment methods included interview and think-aloud procedures in which individuals were interrupted 3 times during the reading of a text to answer questions about their internal cognitive processes. It was found that both student and adult groups had highly skilled readers who demonstrated higher level reading strategies and less skilled readers who demonstrated lower level strategies, and only the highest skilled reader demonstrated both breadth and depth of strategies in all three categories: "constructing meaning," "monitoring and improving comprehension," and "evaluating comprehension." The study contributes evidence toward two identified gaps in the existing body of research: (a) the lack of investigation into the reading strategies utilized by deaf readers in text comprehension and (b) the overemphasis of most research on studying less skilled deaf readers while overlooking highly proficient deaf readers.

Teaching Early Readers to Self-Monitor and Self-Correct

ERIC Educational Resources Information Center

Pratt, Sharon M.; Urbanowski, Melena

2016-01-01

Proficient readers self-monitor and self-correct to derive meaning from text. This article reviews research on how students learn to self-monitor and self-correct and describes a Reciprocal Teaching (RT) instructional routine that was successfully used with early readers to build their metacognitive processes. The RT routine included teacher…

A Curved Image-Plate Detector System for High-Resolution Synchrotron X-ray Diffraction

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sarin, P.; Haggerty, R; Yoon, W

2009-01-01

The developed curved image plate (CIP) is a one-dimensional detector which simultaneously records high-resolution X-ray diffraction (XRD) patterns over a 38.7 2{theta} range. In addition, an on-site reader enables rapid extraction, transfer and storage of X-ray intensity information in {le}30 s, and further qualifies this detector to study kinetic processes in materials science. The CIP detector can detect and store X-ray intensity information linearly proportional to the incident photon flux over a dynamical range of about five orders of magnitude. The linearity and uniformity of the CIP detector response is not compromised in the unsaturated regions of the image plate,more » regardless of saturation in another region. The speed of XRD data acquisition together with excellent resolution afforded by the CIP detector is unique and opens up wide possibilities in materials research accessible through X-ray diffraction. This article presents details of the basic features, operation and performance of the CIP detector along with some examples of applications, including high-temperature XRD.« less

Using Twitter to Teach Reader-Oriented Biblical Interpretation: "Tweading" the Gospel of Mark

ERIC Educational Resources Information Center

Williamson, Robert, Jr.

2013-01-01

Twitter offers an engaging way to introduce students to reader-oriented interpretation of the Bible. The exercise described here introduces students to the idea that the reader has a role in the production of a text's meaning, which thus varies from reader to reader. Twitter enables us to capture the real-time thoughts of a variety of…

Writing for a Reader: Does the Nature of the Reader Make a Difference?

ERIC Educational Resources Information Center

Porter, Don; O'Sullivan, Barry

A study investigated how perception of the reader's age in relation to the age of the writer affects assessment of writing. Subjects were 26 Japanese women college students of English as a Second Language, all of whom had recently participated in a home-stay program in an English-speaking country. They were given the task of writing brief letters…

Exploring e-readers to support clinical medical education: two case studies*†

PubMed Central

von Isenburg, Megan

2011-01-01

Question: Can e-readers loaded with medical textbooks and other relevant material benefit medical students, residents, and preceptors in clinical settings? Settings: The settings are North Carolina community clinics served by Duke University Medical Center and St. Joseph's Hospital in Bryan, Texas, and Scott and White Memorial Hospital in Temple, Texas. Methods: Duke University: Twenty second-year medical students and fourteen family medicine clerkship preceptors used Kindle e-readers in clinics during eight months of rotations. Students and preceptors provided feedback through an anonymous online survey. Texas A&M University: Nine fourth-year medical students in an elective compared medical textbooks in print, online, and on a Kindle. Six residents at a local hospital completed an anonymous online survey after a three-week loan of a Kindle loaded with medical textbooks. Results: The e-reader's major advantages in clinical settings are portability and searchability. The selected e-reader's limitations include connection speed, navigation, and display. User preferences varied, but online resources were preferred. Participants suggested additional uses for Kindles in medical education. Conclusions: The selected e-reader's limitations may be resolved with further development of the device. Investigation of other e-readers is needed. Criteria for evaluating e-readers in clinical settings should include portability, searchability, speed, navigation, and display. Research comparing e-readers and mobile devices in clinical education is also warranted. PMID:21464848

Signaling in Text and Its Interaction with Reader Strategies.

ERIC Educational Resources Information Center

Meyer, Bonnie J. F.

Research has identified three reading strategies that are affected in various ways by signaling--the emphasis of superordinate relationships in text. Using a structure strategy, readers follow the text's superordinate relations to focus on the text's message and how it relates to supportive details. Readers who use the detail/list strategy focus…

Finding versus Fixing: Self-Monitoring for Readers Who Struggle

ERIC Educational Resources Information Center

Anderson, Nancy L.; Kaye, Elizabeth L.

2017-01-01

This article explains how teachers can understand, notice, and supportively respond to readers who struggle with self-monitoring during text reading. The unique strategic processing demands for readers who struggle support the argument that teaching children to find and notice errors is different than fixing a word, or getting it right. Three…

Chinese Deaf Readers Have Early Access to Parafoveal Semantics

ERIC Educational Resources Information Center

Yan, Ming; Pan, Jinger; Bélanger, Nathalie N.; Shu, Hua

2015-01-01

In the present study, we manipulated different types of information available in the parafovea during the reading of Chinese sentences and examined how deaf readers make use of the parafoveal information. Results clearly indicate that although the reading-level matched hearing readers make greater use of orthographic information in the parafovea,…

Eye Movements Reveal Readers' Lexical Quality and Reading Experience

ERIC Educational Resources Information Center

Taylor, Jessica Nelson; Perfetti, Charles A.

2016-01-01

Two experiments demonstrate that individual differences among normal adult readers, including lexical quality, are expressed in silent reading at the word level. In the first of two studies we identified major dimensions of variability among college readers and among words using factor analysis. We then examined the effects of these dimensions of…

An Unforgiving Enemy: AIDS. Student Reader and Teacher's Guide.

ERIC Educational Resources Information Center

Adult Education Services, Johnstown, PA.

These adult basic education instructional materials on the prevention of Acquired Immune Deficiency Syndrome (AIDS) include a student reader and a teacher's guide. The student reader contains six chapters. Chapter 1 introduces two characters--Ricco and Francis--and focuses on the definition of AIDS, the three stages of the disease, the cause, and…

SciReader enables reading of medical content with instantaneous definitions.

PubMed

Gradie, Patrick R; Litster, Megan; Thomas, Rinu; Vyas, Jay; Schiller, Martin R

2011-01-25

A major problem patients encounter when reading about health related issues is document interpretation, which limits reading comprehension and therefore negatively impacts health care. Currently, searching for medical definitions from an external source is time consuming, distracting, and negatively impacts reading comprehension and memory of the material. SciReader was built as a Java application with a Flex-based front-end client. The dictionary used by SciReader was built by consolidating data from several sources and generating new definitions with a standardized syntax. The application was evaluated by measuring the percentage of words defined in different documents. A survey was used to test the perceived effect of SciReader on reading time and comprehension. We present SciReader, a web-application that simplifies document interpretation by allowing users to instantaneously view medical, English, and scientific definitions as they read any document. This tool reveals the definitions of any selected word in a small frame at the top of the application. SciReader relies on a dictionary of ~750,000 unique Biomedical and English word definitions. Evaluation of the application shows that it maps ~98% of words in several different types of documents and that most users tested in a survey indicate that the application decreases reading time and increases comprehension. SciReader is a web application useful for reading medical and scientific documents. The program makes jargon-laden content more accessible to patients, educators, health care professionals, and the general public.

Be That Teacher! Breaking the Cycle for Struggling Readers

ERIC Educational Resources Information Center

Risko, Victoria J.; Walker-Dalhouse, Doris

2012-01-01

Tens of thousands of students begin each new school year with the hope that they will finally find "the" teacher who will help them succeed as readers, writers, and learners. This book shows how teachers can provide the type of differentiated instruction that struggling readers need by drawing on students' individual and cultural backgrounds, as…

The Responding Reader: Nine New Approaches to Teaching Literature.

ERIC Educational Resources Information Center

Davis, Ken, Ed.

1982-01-01

Articles in this journal issue explore the relationship between the reader and the literature text, and discuss ways that instruction can enhance reader response to that literature. Following an introduction summarizing the nine articles, the titles and their authors are as follows: (1) "It Is the Poem That I Remake: Using Kenneth Burke's…

Computer Games versus Maps before Reading Stories: Priming Readers' Spatial Situation Models

ERIC Educational Resources Information Center

Smith, Glenn Gordon; Majchrzak, Dan; Hayes, Shelley; Drobisz, Jack

2011-01-01

The current study investigated how computer games and maps compare as preparation for readers to comprehend and retain spatial relations in text narratives. Readers create situation models of five dimensions: spatial, temporal, causal, goal, and protagonist (Zwaan, Langston, & Graesser 1995). Of these five, readers mentally model the spatial…

A demonstration of lack of variability among six tuberculin skin test readers.

PubMed Central

Perez-Stable, E J; Slutkin, G

1985-01-01

The variability of tuberculin skin test readings among six trained and experienced readers was evaluated using a modified sliding caliper method. Each of 537 tests were read independently by two readers. There were 23 disagreements between paired readers resulting in an overall interobserver reliability of 95.7 per cent. In 82 per cent of the paired readings the results were different by 2 mm or less. The observer lack of variability was likely due to the training and experience of the readers. PMID:4051078

Comparisons of Learning Ease and Transfer Propensity in Poor and Average Readers.

ERIC Educational Resources Information Center

Day, Jeanne D.; Zajakowski, Amy

1991-01-01

Assisted and unassisted performance of 14 average readers and 14 readers with learning disabilities (ages 10-13) were compared on a reading comprehension task. The groups differed in how easily they learned to find the main idea under different topic sentence placement conditions, with the learning-disabled readers requiring significantly more…

Are You Ready for E-Readers in Your Library?

ERIC Educational Resources Information Center

Gustafson, Chris

2012-01-01

This article discusses some things to consider when thinking about adding e-readers to one's collection. These include: (1) What is the purpose?; (2) Which device?; (3) How will one keep track of his or her e-readers and their contents?; (4) What are some potential pitfalls?; (5) Is there a positive impact on student learning?; and (6) Are…

Research Connections: The San Diego Striving Readers' Project: Building Academic Success for Adolescent Readers

ERIC Educational Resources Information Center

McDonald, Trevor; Thornley, Christina; Staley, Rosemary; Moore, David W.

2009-01-01

This Research Connections column describes the background to and the research base for the San Diego Unified School Districts' federally funded Striving Readers Project. The curriculum for the project was developed out of a longitudinal study into the literacy experiences of secondary students in New Zealand and from exploratory work in San Diego…

The Effect of Script on Poor Readers' Sensitivity to Dynamic Visual Stimuli

ERIC Educational Resources Information Center

Kim, Jeesun; Davis, Chris; Burnham, Denis; Luksaneeyanawin, Sudaporn

2004-01-01

The current research examined performance of good and poor readers of Thai on two tasks that assess sensitivity to dynamic visual displays. Readers of Thai, a complex alphabetic script that nonetheless has a regular orthography, were chosen in order to contrast patterns of performance with readers of Korean Hangul (a similarly regular language but…

Long-Term Performance of Readers Trained in Grading Crohn Disease Activity Using MRI.

PubMed

Puylaert, Carl A J; Tielbeek, Jeroen A W; Bipat, Shandra; Boellaard, Thierry N; Nio, C Yung; Stoker, Jaap

2016-12-01

We aim to evaluate the long-term performance of readers who had participated in previous magnetic resonance imaging (MRI) reader training in grading Crohn disease activity. Fourteen readers (8 women; 12 radiologists, 2 residents; mean age 40; range 31-59), who had participated in a previous MRI reader training, participated in a follow-up evaluation after a mean interval of 29 months (range 25-34 months). Follow-up evaluation comprised 25 MRI cases of suspected or known Crohn disease patients with direct feedback; cases were identical to the evaluation set used in the initial reader training (of which readers were unaware). Grading accuracy, overstaging, and understaging were compared between training and follow-up using a consensus score by two experienced abdominal radiologists as the reference standard. In the follow-up evaluation, overall grading accuracy was 73% (95% confidence interval [CI]: 62%-81%), which was comparable to reader training grading accuracy (72%, 95% CI: 61%-80%) (P = .66). Overstaging decreased significantly from 19% (95% CI: 12%-27%) to 13% (95% CI: 8%-21%) between training and follow-up (P = .03), whereas understaging increased significantly from 9% (95% CI: 4%-21%) to 14% (95% CI: 7%-26%) (P < .01). Readers have consistent long-term accuracy for grading Crohn disease activity after case-based reader training with direct feedback. Copyright © 2016 The Association of University Radiologists. Published by Elsevier Inc. All rights reserved.

Peace Pilgrim: A Readers Theatre Approach to Peace Education.

ERIC Educational Resources Information Center

Curran, Joanne M.

Readers theater is a dramatic art that directs attention to the words of a text. During a performance, a reader (rather than an actor) presents and interprets the work within a narrative context intended by the author. In this project, the text, a collection of the words and writings of a woman known as the Peace Pilgrim, tells the story of her…

Who's Really Struggling?: Middle School Teachers' Perceptions of Struggling Readers

ERIC Educational Resources Information Center

Moreau, Leah K.

2014-01-01

This study explored middle school teachers' perceptions of struggling readers, including influences such as: understandings of components and factors relating to reading difficulties; views of struggling readers' behaviours and affect; classroom implications of their difficulties; and feelings of both competency and responsibility in the teaching…

Performance optimization of plate heat exchangers with chevron plates

DOE Office of Scientific and Technical Information (OSTI.GOV)

Muley, A.; Manglik, R.M.

1999-07-01

The enhanced heat transfer performance of a chevron plate heat exchanger (PHE) is evaluated employing (1) energy-conservation based performance evaluation criteria (PECs), and (2) the second-law based minimization of entropy generation principle. Single-phase laminar and turbulent flow convection for three different chevron-plate arrangements are considered. The influence of plate surface corrugation characteristics and their stack arrangements on the heat exchanger's thermal-hydraulic performance is delineated. Based on the different figures of merit, the results show that the extent of heat transfer enhancement increases with flow Re and chevron angle {beta} in laminar flow, but it diminishes with increasing Re in turbulentmore » flows. With up to 2.9 times higher Q, 48% lower A, and entropy generation number N{sub s,a} {lt} 1, relative to an equivalent flat-plate pack, chevron plates are found to be especially suitable in the low to medium flow rates range (20 {le} Re {le} 2,000). Also, there appears to be no significant advantage of using a mixed-plate over a symmetric-plate arrangement.« less

Readers' Emotions: A Plurilingual Perspective

ERIC Educational Resources Information Center

Rivière, Marie

2016-01-01

This article focuses on the differential emotional power of languages in the book-reading practices of plurilingual readers. Within a plurilingual perspective, it aims at adding nuance to the "emotional contexts of learning hypothesis" and the "theory of language embodiment". This qualitative study is based on semi-structured…

Evaluation of finger plate and flat plate connection design.

DOT National Transportation Integrated Search

2016-01-01

This project investigates the cause(s) of premature deterioration of MoDOT finger plate and flat plate expansion devices : under high traffic volumes and then uses that information to design new Load and Resistance Factor Design (LRFD) : finger plate...

An affordable optically stimulated luminescent dosimeter reader utilizing multiple excitation wavelengths.

PubMed

Kearfott, Kimberlee J; West, W Geoffrey

2015-10-01

A lower-cost optically stimulated luminescence (OSL) reader with increased flexibility for pursuing laboratory research into OSL theory and application was designed and constructed. This was achieved by using off-the-shelf optical components and higher-power light emitting diodes. The resulting reader includes more wavelengths of excitation light than current commercial readers, as well as the ability to swap out filters and other components during an experiment. Copyright © 2015 Elsevier Ltd. All rights reserved.

Details: Elevation of Plate Typical Bay, SectionThrough Plate Typical Bay, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Details: Elevation of Plate Typical Bay, Section-Through Plate Typical Bay, Section-Through Plate Center Bay, Elevation of Plate Center Bay - Contoocook Covered Bridge, Spanning Contoocook River, Hopkinton, Merrimack County, NH

Library Services to Distance Learners in the Commonwealth: A Reader.

ERIC Educational Resources Information Center

Watson, Elizabeth F., Ed.; Jagannathan, Neela, Ed.

The provision of good library services is a crucial factor in determining the quality of distance education. This collection of articles acquaints readers with distance librarianship as it is practiced in developed and developing countries throughout the British Commonwealth. The reader includes: "Introduction" (Michael Wooliscroft);…

Cognitive Processes in Discourse Comprehension: Passive Processes, Reader-Initiated Processes, and Evolving Mental Representations

ERIC Educational Resources Information Center

van den Broek, Paul; Helder, Anne

2017-01-01

As readers move through a text, they engage in various types of processes that, if all goes well, result in a mental representation that captures their interpretation of the text. With each new text segment the reader engages in passive and, at times, reader-initiated processes. These processes are strongly influenced by the readers'…

Native American Adult Reader III.

ERIC Educational Resources Information Center

King, Lovern Root, Ed.

This reader, one of three designed to provide adults in basic education/GED programs with meaningful material based on Native American cultures, includes selections appropriate for advanced reading ability (grade 7 and above). The twelve readings focus on culture, history, and contemporary concerns of Native Americans. Each selection includes a…

Triage for Struggling Adolescent Readers

ERIC Educational Resources Information Center

Diamond, Linda J.

2006-01-01

To improve achievement for struggling readers in particular, secondary schools must design programs and curricula to address students' lack of background knowledge, delayed English language development, and limited success in reading. In this article, the author presents a systems approach that offers intensive care for the most at-risk students…

Storytelling and the Emergent Reader.

ERIC Educational Resources Information Center

Malo, Eve; Bullard, Julie

Numerous studies have linked reading aloud to preschoolers and these children's later success as readers. But some of the parents with whom teachers work, whether they work at Head Start, childcare centers, or primary grades, have limited reading skills. However, the Hispanic, Native American, African American, Irish American, and many other…

Infographics for Educational Purposes: Their Structure, Properties and Reader Approaches

ERIC Educational Resources Information Center

Yildirim, Serkan

2016-01-01

Infographics are one of the new educational environments used to provide information to their readers in a visual way. Infographics are designed to provide information to their readers using various visuals such as texts, pictures, drawings, diagrams, graphs, etc. The use of infographics becomes increasingly widespread both in advertising…

How the Relationship between Text and Headings Influences Readers' Memory

ERIC Educational Resources Information Center

Ritchey, Kristin; Schuster, Jonathan; Allen, Jaryn

2008-01-01

Two questions regarding signals' influence on memory were examined. First, the relationship between headings and text was manipulated to determine whether headings serve as visual cues, directing readers to recall all subsequent information, or content-specific cues, directing readers to recall only to certain information. Second, distance between…

Breaking the Silence: Toward Improving LGBTQ Representation in Composition Readers

ERIC Educational Resources Information Center

Hudson, John

2014-01-01

Lesbian-Gay-Bisexual-Transgender-Queer (LGBTQ) representation in composition readers remains limited and is frequently nonexistent. In addition, the LGBTQ-related materials that do find their way into composition readers are often problematic. In this essay I explain why WPAs and composition teachers should be concerned about LGBTQ representation…

People or Machines? Measured Reading Comprehension from Different Reader Types

ERIC Educational Resources Information Center

Conner, Timothy W., II; Aagaard, Lola

2009-01-01

Differences in reading comprehension were examined in students with disabilities after use of three reader modification types. Participants (n=10) conveniently selected from two school districts were students grades three through eight reading on a third grade level that received a reader as a modification in their Individualized Education…

Accelerated Reader[R]: What Are the Lasting Effects on the Reading Habits of Middle School Students Exposed to Accelerated Reader[R] in Elementary Grades?

ERIC Educational Resources Information Center

Pavonetti, Linda M.; Brimmer, Kathryn M.; Cipielewski, James F.

Promoted by effective advertising and disseminated by word of mouth, many schools have adopted Accelerated Reader[R] as a supplementary reading program or as their primary reading program. Accelerated Reader[R]'s philosophy is that by using the system, students are motivated to read more and better books. A study investigated whether seventh grade…

Neuroimaging reveals dual routes to reading in simultaneous proficient readers of two orthographies

PubMed Central

Das, T.; Padakannaya, P.; Pugh, K. R.; Singh, N. C.

2012-01-01

Orthographic differences across languages impose differential weighting on distinct component processes, and consequently on different pathways during word-reading tasks. Readers of transparent orthographies such as Italian and Hindi are thought to rely on spelling-to-sound assembly and show increased activation in phonologically-tuned areas along the dorsal pathway, whereas reading an opaque orthography such as English is thought to rely more on lexically-mediated processing associated with increased activation of semantically-tuned regions along the ventral pathway. To test if biliterate Hindi/English readers exhibit orthography-specific reading pathways, we used behavioural measures and functional neuroimaging. Reaction times and activation patterns of monolingual English and Hindi readers were compared to two groups of adult biliterates; 14 simultaneous readers who learnt to read both languages at age 5 and 10 sequential readers who learnt Hindi at 5 and English at 10. Simultaneous, but not sequential readers demonstrated relative activation differences of dorsal and ventral areas in the two languages. Similar to native counterparts, simultaneous readers preferentially activated the left inferior temporal gyrus for English and left inferior parietal lobule (L-IPL) for Hindi, whereas, sequential readers showed higher activation along the L-IPL for reading both languages. We suggest that early simultaneous exposure to reading distinct orthographies results in orthography-specific plasticity that persists through adulthood. PMID:20854914

Outlining Techniques That Help Disabled Readers.

ERIC Educational Resources Information Center

Giordano, Gerard

1982-01-01

As alternatives to hierarchical outlining, pictorial, topical, and critical outlining kinesthetically reinforce reading comprehension and can be useful in helping older students who are learning disabled or poor readers. Examples of each approach are given. (CL)

Narratives of the Struggling Reader

ERIC Educational Resources Information Center

Vlach, Saba; Burcie, Judy

2010-01-01

Struggling readers need to be taught at their instruction level. But often, separating them from their classmates reinforces their feelings of inadequacy. This article will explain the importance of developing a sense of agency in struggling learners and outline some strategies teachers can incorporate to help make this happen within the classroom.

Developing Written Text Production Competence Using the Reader-Response Method

ERIC Educational Resources Information Center

Demény, Paraschiva

2012-01-01

The first part of the present paper deals with the analysis of the literary theory and linguistic background of the reader-response method, respectively with the presentation of the process of composition and its psychological components. The reader-response textual interpretation method can take several different approaches of literary theory,…

Perceptions about "Good Readers": Analyzing Curricular, Linguistic, and Socioeconomic Differences

ERIC Educational Resources Information Center

Moses, Lindsey

2015-01-01

Students' perceptions about "what good readers do" are representative of their definition of reading and what they believe they should be striving toward as a reader. These beliefs about reading influence their motivation and ways they engage with texts. In this study, interviews were conducted with students in three first-grade…

Can Bold Typeface Improve Readers' Comprehension and Metacomprehension of Negation?

ERIC Educational Resources Information Center

Margolin, Sara J.

2013-01-01

Recent research on negation has demonstrated that while readers are aware that this text construction is difficult, they seem to be able to do little to improve their comprehension. The present research evaluated whether a change in typeface could improve comprehension and metacomprehension of negation. Results indicated that while readers were…

Interplay Between Reading Tasks, Reader Variables, and Unknown Word Processing.

ERIC Educational Resources Information Center

Levine, Adina; Reves, Thea

1998-01-01

Examined to what extent readers' word-treatment strategies are task dependent, and to what extent word-treatment strategies are dependent on the reader's reading profile. Subjects were 42 students of English for academic purposes advanced reading-comprehension course. Instruments used in the study included a word-treatment experiment, an open…

When transparency is opaque: Effects of diacritic marks and vowel letters on dyslexic Hebrew readers.

PubMed

Weiss, Yael; Katzir, Tami; Bitan, Tali

2016-10-01

The current study examined the effects of orthographic transparency and familiarity on brain mechanisms involved in word recognition in adult dyslexic Hebrew readers. We compared functional Magnetic Resonance Imaging (fMRI) brain activation in 21 dyslexic readers and 22 typical readers, and examined the effects of diacritic marks that provide transparent but less familiar information and vowel letters that increase orthographic transparency without compromising familiarity. Dyslexic readers demonstrated reduced activation in left supramarginal gyrus (SMG) as compared to typical readers, as well as different patterns of activation within the left inferior frontal gyrus (IFG). Furthermore, in contrast to typical readers, dyslexic readers did not show increased activation for diacritics in left temporo-parietal junction regions, associated with mapping orthography to phonology. Nevertheless, both groups showed the facilitation effect of vowel letters on regions associated with lexical-semantic access. Altogether the results suggest that while typical readers can compensate for the reduced familiarity of pointed words with increased reliance on decoding of smaller units, dyslexic readers do not, and therefore they show a higher cost. Copyright © 2016 Elsevier Ltd. All rights reserved.

Corrugated cover plate for flat plate collector

DOEpatents

Hollands, K. G. Terry; Sibbitt, Bruce

1978-01-01

A flat plate radiant energy collector is providing having a transparent cover. The cover has a V-corrugated shape which reduces the amount of energy reflected by the cover away from the flat plate absorber of the collector.

Plate mode velocities in graphite/epoxy plates

NASA Technical Reports Server (NTRS)

Prosser, W. H.; Gorman, M. R.

1994-01-01

Measurements of the velocities of the extensional and flexural plate modes were made along three directions of propagation in four graphite/epoxy composite plates. The acoustic signals were generated by simulated acoustic emission events (pencil lead breaks or Hsu-Neilson sources) and detected by by broadband ultrasonic transducers. The first arrival of the extensional plate mode, which is nondispersive at low frequencies, was measured at a number of different distances from the source along the propagation direction of interest. The velocity was determined by plotting the distance versus arrival time and computing its slope. Because of the large dispersion of the flexural mode, a Fourier phase velocity technique was used to characterize this mode. The velocity was measured up to a frequency of 160 kHz. Theoretical predictions of the velocities of these modes were also made and compared with experimental observations. Classical plate theory yields good agreement with the measured extensional velocities. For predictions of the dispersion of the flexural mode, Mindlin plates theory, which includes the effects of shear deformation and rotatory inertia was shown to give better agreement with the experimental measurements.

"Guy Reader" Is Not an Oxymoron

ERIC Educational Resources Information Center

Korman, Gordon

2013-01-01

The author of 80 books, most recently "HYPNOTIZE ME," discusses the unique challenges of engaging reluctant and sometimes openly hostile boys by creating the kind of stories that will hook them in and turn them into lifelong readers.

Temporal and Causal Reasoning in Deaf and Hearing Novice Readers

ERIC Educational Resources Information Center

Sullivan, Susan; Oakhill, Jane; Arfé, Barbara; Boureux, Magali

2014-01-01

Temporal and causal information in text are crucial in helping the reader form a coherent representation of a narrative. Deaf novice readers are generally poor at processing linguistic markers of causal/temporal information (i.e., connectives), but what is unclear is whether this is indicative of a more general deficit in reasoning about…

University Level Second Language Readers' Online Reading and Comprehension Strategies

ERIC Educational Resources Information Center

Park, Jaehan; Yang, Jaeseok; Hsieh, Yi Chin

2014-01-01

With the growing prevalence of Web 2.0 technologies and use of online resources in their classrooms, language learners have increasing exposure to online texts. In this study we attempted to understand how university level second language (L2) readers construct meaning when reading online. We investigated L2 readers' information-seeking strategies…

Reader Response in the Classroom.

ERIC Educational Resources Information Center

Chew, Charles, Ed.; And Others

Focusing on reader response in the classroom, the works collected in this book represent the results of a five-week summer institute in which 25 middle school, high school, and college teachers studied the principles and applications of literature instruction. The following essays are included: an introduction by G. Garber; "An Overview of the…

Comparative Education. ASHE Reader Series.

ERIC Educational Resources Information Center

Kempner, Ken, Ed.; Mollis, Marcela, Ed.; Tierney, William G., Ed.

The chapters in this collection explore why particular national higher education systems operate as they do and the effects these systems have on one another, on national and global development, and on the production of knowledge. The works included in this reader address the assessment of inputs and outputs of institutions and the meaning these…

Writing Reviews for Readers' Advisory

ERIC Educational Resources Information Center

Hooper, Brad

2010-01-01

Reviews are an important resource for readers' advisory and collection development. They are also a helpful promotional tool, introducing patrons to what is new on the shelf. This resource includes: (1) Tips for writing strong, relevant reviews; (2) Different ways reviews can be used to promote your library; and (3) A chapter by Joyce Saricks…

The Mountain Reader. Second Edition.

ERIC Educational Resources Information Center

Kimmons, Carol

This book consists of a compilation of 28 stories, mostly first-person accounts of life in the Sequatchie Valley of southeastern Tennessee (some from earlier times) written in simplified language to provide high-interest reading material for adult readers in rural areas. The book is printed in large type. Many of the stories provide pertinent…

Struggling Reader to Struggling Reader: High School Students' Responses to a Cross-Age Tutoring Program

ERIC Educational Resources Information Center

Paterson, Patricia O.; Elliott, Lori N.

2006-01-01

This qualitative study examines the perceptions and responses of struggling ninth-grade readers who are teaching reading to struggling second- and third-grade students in a cross-age tutoring program. The program was designed to overcome the entrenched, negative affective barriers that older students often bring to the required reading class by…

Bimodal Reading: Benefits of a Talking Computer for Average and Less Skilled Readers.

ERIC Educational Resources Information Center

Montali, Julie; Lewandowski, Lawrence

1996-01-01

Eighteen average readers and 18 less-skilled readers (grades 8 and 9) were presented with social studies and science passages via a computer either visually (on screen), auditorily (read by digitized voice), or bimodally (on screen, highlighted while being voiced). Less-skilled readers demonstrated comprehension in the bimodal condition equivalent…

Cellphone-Based Hand-Held Microplate Reader for Point-of-Care Testing of Enzyme-Linked Immunosorbent Assays.

PubMed

Berg, Brandon; Cortazar, Bingen; Tseng, Derek; Ozkan, Haydar; Feng, Steve; Wei, Qingshan; Chan, Raymond Yan-Lok; Burbano, Jordi; Farooqui, Qamar; Lewinski, Michael; Di Carlo, Dino; Garner, Omai B; Ozcan, Aydogan

2015-08-25

Standard microplate based enzyme-linked immunosorbent assays (ELISA) are widely utilized for various nanomedicine, molecular sensing, and disease screening applications, and this multiwell plate batched analysis dramatically reduces diagnosis costs per patient compared to nonbatched or nonstandard tests. However, their use in resource-limited and field-settings is inhibited by the necessity for relatively large and expensive readout instruments. To mitigate this problem, we created a hand-held and cost-effective cellphone-based colorimetric microplate reader, which uses a 3D-printed opto-mechanical attachment to hold and illuminate a 96-well plate using a light-emitting-diode (LED) array. This LED light is transmitted through each well, and is then collected via 96 individual optical fibers. Captured images of this fiber-bundle are transmitted to our servers through a custom-designed app for processing using a machine learning algorithm, yielding diagnostic results, which are delivered to the user within ∼1 min per 96-well plate, and are visualized using the same app. We successfully tested this mobile platform in a clinical microbiology laboratory using FDA-approved mumps IgG, measles IgG, and herpes simplex virus IgG (HSV-1 and HSV-2) ELISA tests using a total of 567 and 571 patient samples for training and blind testing, respectively, and achieved an accuracy of 99.6%, 98.6%, 99.4%, and 99.4% for mumps, measles, HSV-1, and HSV-2 tests, respectively. This cost-effective and hand-held platform could assist health-care professionals to perform high-throughput disease screening or tracking of vaccination campaigns at the point-of-care, even in resource-poor and field-settings. Also, its intrinsic wireless connectivity can serve epidemiological studies, generating spatiotemporal maps of disease prevalence and immunity.

Tadpole Tales and Other Totally Terrific Treats for Readers Theatre.

ERIC Educational Resources Information Center

Fredericks, Anthony D.

Readers theater is a storytelling device that stimulates the imagination and promotes all of the language arts. Readers theater is an oral interpretation of a piece of literature read in a dramatic style. It involves and motivates students, energizes the language arts program, and stimulates learning. Geared for children in grades 1-4, this book…

Miscue Analysis: A Transformative Tool for Researchers, Teachers, and Readers

ERIC Educational Resources Information Center

Goodman, Yetta M.

2015-01-01

When a reader produces a response to a written text (the observed response) that is not expected by the listener, the result is called a miscue. Using psychosociolingustic analyses of miscues in the context of an authentic text, miscue analysis provides evidence to discover how readers read. I present miscue analysis history and development and…

A multiple reader scoring system for Nasal Potential Difference parameters.

PubMed

Solomon, George M; Liu, Bo; Sermet-Gaudelus, Isabelle; Fajac, Isabelle; Wilschanski, Michael; Vermeulen, Francois; Rowe, Steven M

2017-09-01

Nasal Potential Difference (NPD) is a biomarker of CFTR activity used to diagnose CF and monitor experimental therapies. Limited studies have been performed to assess agreement between expert readers of NPD interpretation using a scoring algorithm. We developed a standardized scoring algorithm for "interpretability" and "confidence" for PD (potential difference) measures, and sought to determine the degree of agreement on NPD parameters between trained readers. There was excellent agreement for interpretability between NPD readers for CF and fair agreement for normal tracings but slight agreement of interpretability in indeterminate tracings. Amongst interpretable tracings, excellent correlation of mean scores for Ringer's Baseline PD, Δ amiloride , and Δ Cl-free+Isoproterenol was observed. There was slight agreement regarding confidence of the interpretable PD tracings, resulting in divergence of the Ringers and Δ amiloride , and ΔCl -free+Isoproterenol PDs between "high" and "low" confidence CF tracings. A multi-reader process with adjudication is important for scoring NPDs for diagnosis and in monitoring of CF clinical trials. Copyright © 2017 European Cystic Fibrosis Society. Published by Elsevier B.V. All rights reserved.

Recall of English Function Words and Inflections by Skilled and Average Deaf Readers.

ERIC Educational Resources Information Center

Kelly, Leonard P.

1993-01-01

The performance of 17 youth on a verbatim recall task indicated that skilled deaf readers are more able than average deaf readers to sustain a record of English function words and inflections. The relative speed of skilled readers when making lexical decisions about phonologically similar word pairs indicated greater access to phonological…

eReaders in School Libraries

ERIC Educational Resources Information Center

Sutton, Amy

2013-01-01

This article explores the possibility of using eReaders in the schools of the Houston Independent School District (HISD), specifically the Barnes and Noble Nook Pilot Project. HSID initially approved only an eReading device that was not wireless since it is very strict on the devices granted access to the wireless network. The biggest roadblock…

Real Readers for Real Writers.

ERIC Educational Resources Information Center

Dieterich, Dan

In the business writing class, teachers should consider the following suggestions: (1) capture students' interest and involve them, (2) prepare them for life outside the English classroom, (3) help them better understand the writing process, and (4) show them that writing occurs in a context that includes a writer, one or more readers, and a host…

Readers' use of source information in text comprehension.

PubMed

Braasch, Jason L G; Rouet, Jean-François; Vibert, Nicolas; Britt, M Anne

2012-04-01

In two experiments, we examined the role of discrepancy on readers' text processing of and memory for the sources of brief news reports. Each story included two assertions that were attributed to different sources. We manipulated whether the second assertion was either discrepant or consistent with the first assertion. On the basis of the discrepancy-induced source comprehension (D-ISC) assumption, we predicted that discrepant stories would promote deeper processing and better memory for the sources conveying the messages, as compared to consistent stories. As predicted, readers mentioned more sources in summaries of discrepant stories, recalled more sources, made more fixations, and displayed longer gaze times in source areas when reading discrepant than when reading consistent stories. In Experiment 2, we found enhanced memory for source-content links for discrepant stories even when intersentential connectors were absent, and regardless of the reading goals. Discussion was focused on discrepancies as one mechanism by which readers are prompted to encode source-content links more deeply, as a method of integrating disparate pieces of information into a coherent mental representation of a text.

Learning to Choose: The Hidden Art of the Enthusiastic Reader

ERIC Educational Resources Information Center

Mackey, Margaret

2014-01-01

Often the difference between a successful and unsuccessful reader is that the former is simply better at finding enjoyable books to read. The capacity to select appealing reading is not developed in classrooms where the decision about what book to read is made by someone other than the reader: the teacher, the curriculum planner, the person who…

Cruising Composition Texts: Negotiating Sexual Difference in First-Year Readers

ERIC Educational Resources Information Center

Marinara, Martha; Alexander, Jonathan; Banks, William P.; Blackmon, Samantha

2009-01-01

The article describes and analyzes the exclusion of LGBT content in composition courses by reporting on a study of how queerness is (and is not) incorporated into first-year writing courses. The authors critically examine the presence or absence of LGBT issues in first-year composition readers; offer analyses of how some first-year readers handle…

The Reader, the Text, the Poem: The Transactional Theory of the Literary Work.

ERIC Educational Resources Information Center

Rosenblatt, Louise M.

Transactional literary theory centers on the reader's contribution in the two-way relationship with the literary text, lifting the reader to a prominent, essential position along with the author and the text. It develops the premise that the reader evokes a literary work through selective attention to the details of the author's "paper and…

Angular shear plate

DOEpatents

Ruda, Mitchell C [Tucson, AZ; Greynolds, Alan W [Tucson, AZ; Stuhlinger, Tilman W [Tucson, AZ

2009-07-14

One or more disc-shaped angular shear plates each include a region thereon having a thickness that varies with a nonlinear function. For the case of two such shear plates, they are positioned in a facing relationship and rotated relative to each other. Light passing through the variable thickness regions in the angular plates is refracted. By properly timing the relative rotation of the plates and by the use of an appropriate polynomial function for the thickness of the shear plate, light passing therethrough can be focused at variable positions.

Follow the Reader: An Effective Strategy to Support Students Reading More Complex Text

ERIC Educational Resources Information Center

Klvacek, Michelle L.; Monroe, Eula Ewing; Wilcox, Brad; Hall-Kenyon, Kendra M.; Morrison, Timothy G.

2017-01-01

This article describes how one second-grade teacher implemented Follow the Reader, her term for dyad reading. Common Core expects students to read increasingly complex texts. Teachers can implement dyad reading with this end in mind. It is a modified version of the neurological impress method in which a lead reader and an assisted reader sit side…

Blind Braille readers mislocate tactile stimuli.

PubMed

Sterr, Annette; Green, Lisa; Elbert, Thomas

2003-05-01

In a previous experiment, we observed that blind Braille readers produce errors when asked to identify on which finger of one hand a light tactile stimulus had occurred. With the present study, we aimed to specify the characteristics of this perceptual error in blind and sighted participants. The experiment confirmed that blind Braille readers mislocalised tactile stimuli more often than sighted controls, and that the localisation errors occurred significantly more often at the right reading hand than at the non-reading hand. Most importantly, we discovered that the reading fingers showed the smallest error frequency, but the highest rate of stimulus attribution. The dissociation of perceiving and locating tactile stimuli in the blind suggests altered tactile information processing. Neuroplasticity, changes in tactile attention mechanisms as well as the idea that blind persons may employ different strategies for tactile exploration and object localisation are discussed as possible explanations for the results obtained.

Novel versatile smart phone based Microplate readers for on-site diagnoses.

PubMed

Fu, Qiangqiang; Wu, Ze; Li, Xiuqing; Yao, Cuize; Yu, Shiting; Xiao, Wei; Tang, Yong

2016-07-15

Microplate readers are important diagnostic instruments, used intensively for various readout test kits (biochemical analysis kits and ELISA kits). However, due to their expensive and non-portability, commercial microplate readers are unavailable for home testing, community and rural hospitals, especially in developing countries. In this study, to provide a field-portable, cost-effective and versatile diagnostic tool, we reported a novel smart phone based microplate reader. The basic principle of this devise relies on a smart phone's optical sensor that measures transmitted light intensities of liquid samples. To prove the validity of these devises, developed smart phone based microplate readers were applied to readout results of various analytical targets. These targets included analanine aminotransferase (ALT; limit of detection (LOD) was 17.54 U/L), alkaline phosphatase (AKP; LOD was 15.56 U/L), creatinine (LOD was 1.35μM), bovine serum albumin (BSA; LOD was 0.0041mg/mL), prostate specific antigen (PSA; LOD was 0.76pg/mL), and ractopamine (Rac; LOD was 0.31ng/mL). The developed smart phone based microplate readers are versatile, portable, and inexpensive; they are unique because of their ability to perform under circumstances where resources and expertize are limited. Copyright © 2016 Elsevier B.V. All rights reserved.

Diagnostic accuracy of mammography readers and their memory performance have no correlation with each other.

PubMed

Kok, P; Pitman, A G; Cawson, J N; Gledhill, S; Kremer, S; Lawson, J; Mehta, K; Mercuri, V; Shnier, D; Taft, R; Zentner, L

2010-08-01

The study aims to determine if any association exists between visual memory performance and diagnostic accuracy performance in a group of radiologist mammogram readers. One hundred proven mammograms (23 with cancers) were grouped into 5 sets of 20 cases, with sets being of equal difficulty. Pairs of sets were presented in 5 reads (40 cases per read, order random) to a panel of 8 radiologist readers (either present or past screening readers, with experience range from <1 year to >20 years). The readers were asked to either 'clear' or 'call back' cases depending on need for further workup, and at post-baseline reads to indicate whether each case was 'new' or 'old' (i.e. remembered from prior read). Two sets were presented only at baseline (40 cases per reader), and were used to calculate the reader's false recollection rate. Three sets were repeated post-baseline once or twice (100 cases per reader). Reading conditions were standardised. Memory performance differed markedly between readers. The number of correctly remembered cases (of 100 'old' cases) had a median of 10.5 and range of 0-58. The observed number of false recollections (of 40 'totally new' cases) had a median of 2 and range of 0-17. Diagnostic performance measures were mean (range): sensitivity 0.68 (0.54-0.81); specificity 0.82 (0.74-0.91); positive predictive value (PPV) 0.55 (0.50-0.65); negative predictive value (NPV) 0.89 (0.86-0.93) and accuracy 0.78 (0.76-0.83). Confidence intervals (CIs; 95%) for each reader overlapped for all the diagnostic parameters, indicating a lack of statistically significant difference between the readers at the 5% level. The most sensitive and the most specific reader showed a trend away from each other on sensitivity, specificity, NPV and PPV; their accuracies were 0.76 and 0.82, respectively, and their accuracy 95% CIs overlapped considerably. Correlation analysis by reader showed no association between observed memory performance and any of the diagnostic accuracy

Asymmetric bias in perception of facial affect among Roman and Arabic script readers.

PubMed

Heath, Robin L; Rouhana, Aida; Ghanem, Dana Abi

2005-01-01

The asymmetric chimeric faces test is used frequently as an indicator of right hemisphere involvement in the perception of facial affect, as the test is considered free of linguistic elements. Much of the original research with the asymmetric chimeric faces test was conducted with subjects reading left-to-right Roman script, i.e., English. As readers of right-to-left scripts, such as Arabic, demonstrated a mixed or weak rightward bias in judgements of facial affect, the influence of habitual scanning direction was thought to intersect with laterality. We administered the asymmetric chimeric faces test to 1239 adults who represented a range of script experience, i.e., Roman script readers (English and French), Arabic readers, bidirectional readers of Roman and Arabic scripts, and illiterates. Our findings supported the hypothesis that the bias in facial affect judgement is rooted in laterality, but can be influenced by script direction. Specifically, right-handed readers of Roman script demonstrated the greatest mean leftward score, and mixed-handed Arabic script readers demonstrated the greatest mean rightward score. Biliterates showed a gradual shift in asymmetric perception, as their scores fell between those of Roman and Arabic script readers, basically distributed in the order expected by their handedness and most often used script. Illiterates, whose only directional influence was laterality, showed a slight leftward bias.

Oral Interpretation of Literature: Readers' Theater

ERIC Educational Resources Information Center

Kennedy, Joan

2011-01-01

The pedagogical principle of experiential learning embodied in the oral interpretation of literature through Readers' Theater provides an avenue to accomplish a seemingly daunting task. Students' participation in reading, interpreting, discussing, writing, assessing, and performing their own creative responses to a literary work promotes a…

Transformative Learning: Reader's Guide

ERIC Educational Resources Information Center

Chang, Bo

2017-01-01

Mezirow's (1978) transformative learning was influenced by Kuhn's (1962) paradigm and Freire's (1970) emancipatory learning. In this paper, the author provides readers a clear guide about the main components of transformative learning: Experience, critical reflection, and rational discourse. The author emphasizes that experience in transformative…

Serving Boys through Readers' Advisory

ERIC Educational Resources Information Center

Sullivan, Michael

2010-01-01

Based on more than twenty years' experience working to get boys interested in reading, the author now offers his first readers' advisory volume. With an emphasis on nonfiction and the boy-friendly categories of genre fiction, the work offers a wealth of material including: (1) Suggestions for how to booktalk one-on-one as well as in large groups;…

A Literacy Task to Assist Reader Awareness in Children's Informational Writing

ERIC Educational Resources Information Center

Holliway, David

2010-01-01

That our writing can be misunderstood by our readers is a conceptual difficulty for developing writers. This paper outlines a perspective-taking process that assists elementary students in composing referentially detailed descriptions. Through a procedural sequence that includes drafting, feedback, readers' perspective task, revision and drafting…

French immersion experience and reading skill development in at-risk readers.

PubMed

Kruk, Richard S; Reynolds, Kristin A A

2012-06-01

We tracked the developmental influences of exposure to French on developing English phonological awareness, decoding and reading comprehension of English-speaking at-risk readers from Grade 1 to Grade 3. Teacher-nominated at-risk readers were matched with not-at-risk readers in French immersion and English language programs. Exposure to spoken French phonetic and syllabic forms and to written French orthographic and morphological forms by children attending French immersion programs was expected to promote phonological, decoding and reading comprehension achievement. Growth in all outcomes was found, with children in immersion experiencing higher final status in phonological awareness and more rapid growth and higher final status in decoding, using multilevel modeling. At-risk readers in French immersion experienced faster growth and higher final status in reading comprehension. Benefits to reading of exposure to an additional language are discussed in relation to cross-language transfer, phonological grain size and enhanced executive control processes.

A System Implementation for Cooperation between UHF RFID Reader and TCP/IP Device

NASA Astrophysics Data System (ADS)

Lee, Sang Hoon; Jin, Ik Soo

This paper presents a system implementation for cooperation between UHF RFID reader and TCP/IP device that can be used as a home gateway. The system consists of an UHF RFID tag, an UHF RFID reader, a RF end-device, a RF coordinator and a TCP/IP I/F. The UHF RFID reader is compatible with EPC Class-0/Gen1, Class-1/Gen1, 2 and ISO18000-6B, operating at the 915MHz. In particular, UHF RFID reader can be combined with a RF end device/coordinator for ZigBee(IEEE 802.15.4) interface which is low power wireless standard. The TCP/IP device is communicated with RFID reader via wired type. On the other hand, it is connected with ZigBee end-device via wireless type. The experimental results show that the developed system can provide the right networking.

Character and Moral Education: A Reader

ERIC Educational Resources Information Center

DeVitis, Joseph L., Ed.; Yu, Tianlong, Ed.

2011-01-01

Against a formidable national discourse that emphasizes academic standardization, accountability, and high-stakes testing in educational policy, "Character and Moral Education: A Reader" seeks to re-introduce and revive the moral mission of education in public conversation and practices in America's schools. With contributions from a…

Capitalizing on Social and Transactional Learning to Challenge First-Grade Readers

ERIC Educational Resources Information Center

Meyer, Amanda; Schendel, Roland K.

2014-01-01

A classroom teacher capitalizes on social learning and reader response theories to challenge her accelerated first-grade readers by implementing literature circles. The aim of this action research was to identify a clear view of "how" to use literature circles with first-graders and "what" might be accomplished. Three…

Biography Today: Profiles of People of Interest to Young Readers, 1998.

ERIC Educational Resources Information Center

Harris, Laurie Lanzen, Ed.; Abbey, Cherie D., Ed.

1998-01-01

This series is designed and written for young readers, aged 9 and above. The volumes cover individuals that young readers want to know most about, including entertainers, athletes, writers, illustrators, cartoonists, and political leaders. Each issue contains numerous sketches arranged alphabetically. Each entry provides at least one picture of…

Multicultural Literature and the Reader's Response: Developing the Confidence To Become Independent Learners and Lifelong Readers.

ERIC Educational Resources Information Center

Tighe, Mary Ann

A survey of Alabama language arts teachers convinced one professor of English teacher education that there are good reasons for incorporating multicultural literature into the classroom, and that it seems especially appropriate for a reader response approach. Since multicultural literature may be as new for the teacher as for the student, teachers…

EDMC: An enhanced distributed multi-channel anti-collision algorithm for RFID reader system

NASA Astrophysics Data System (ADS)

Zhang, YuJing; Cui, Yinghua

2017-05-01

In this paper, we proposes an enhanced distributed multi-channel reader anti-collision algorithm for RFID environments which is based on the distributed multi-channel reader anti-collision algorithm for RFID environments (called DiMCA). We proposes a monitor method to decide whether reader receive the latest control news after it selected the data channel. The simulation result shows that it improves interrogation delay.

How Effective Are Pictures in Basal Readers?

ERIC Educational Resources Information Center

Legenza, Alice; Knafle, June D.

1978-01-01

When a formula for assessing the language stimulation value of pictures was applied to several basal readers, the results indicated that most of the pictures were of low potency or stimulation potential. (MKM)

Accelerated plate tectonics.

PubMed

Anderson, D L

1975-03-21

The concept of a stressed elastic lithospheric plate riding on a viscous asthenosphere is used to calculate the recurrence interval of great earthquakes at convergent plate boundaries, the separation of decoupling and lithospheric earthquakes, and the migration pattern of large earthquakes along an arc. It is proposed that plate motions accelerate after great decoupling earthquakes and that most of the observed plate motions occur during short periods of time, separated by periods of relative quiescence.

Anterior inferior plating versus superior plating for clavicle fracture: a meta-analysis.

PubMed

Ai, Jie; Kan, Shun-Li; Li, Hai-Liang; Xu, Hong; Liu, Yang; Ning, Guang-Zhi; Feng, Shi-Qing

2017-04-18

The position of plate fixation for clavicle fracture remains controversial. Our objective was to perform a comprehensive review of the literature and quantify the surgical parameters and clinical indexes between the anterior inferior plating and superior plating for clavicle fracture. PubMed, EMBASE, and the Cochrane Library were searched for randomized and non-randomized studies that compared the anterior inferior plating with the superior plating for clavicle fracture. The relative risk or standardized mean difference with 95% confidence interval was calculated using either a fixed- or random-effects model. Four randomized controlled trials and eight observational studies were identified to compare the surgical parameters and clinical indexes. For the surgical parameters, the anterior inferior plating group was better than the superior plating group in operation time and blood loss (P < 0.05). Furthermore, in terms of clinical indexes, the anterior inferior plating was superior to the superior plating in reducing the union time, and the two kinds of plate fixation methods were comparable in constant score, and the rate of infection, nonunion, and complications (P > 0.05). Based on the current evidence, the anterior inferior plating may reduce the blood loss, the operation and union time, but no differences were observed in constant score, and the rate of infection, nonunion, and complications between the two groups. Given that some of the studies have low quality, more randomized controlled trails with high quality should be conduct to further verify the findings.

Astrobites: The Astro-ph Reader's Digest For Undergraduates

NASA Astrophysics Data System (ADS)

Newton, Elisabeth R.; Kohler, S.; Gifford, D.; Plunkett, A. L.; Astrobites Team

2012-01-01

Astrobites (http://astrobites.com) is a daily blog aimed primarily at undergraduates interested in astrophysical research and written by a team of graduate students from around the country. Every day we present a journal article recently posted to astro-ph in a brief format that is accessible to anyone with a general background in the physical sciences. In addition to summarizing new work, Astrobites provides valuable context for readers not yet familiar with the astrophysical literature. Special posts offer career guidance for undergraduates (e.g. applying for an NSF graduate fellowship) and describe personal experiences (e.g. attending an astronomy summer school). We will discuss the Astrobites format, readership statistics and the results of our October reader survey (117 responses). The Astrobites blog is currently receiving 17000 on-site hits per month with an average of 600 all-time views per post. 17% of our readers are undergraduate students and 34% are graduates, while researchers and astronomy enthusiasts make up the remainder in equal parts. Out of the 60 students surveyed, 75% plan on a career in research in astrophysics. EN and DG acknowledge support from the National Science Foundation through Graduate Research Fellowships.

Setting Aside the Course Reader: The Legal, Economic, and Pedagogical Reasons

ERIC Educational Resources Information Center

Evans, Brent J.; Willinsky, John

2013-01-01

In this article we examine the changing status of the course reader as an instructional technology in higher education. We assess the advantages of simply providing students bibliographic entries for assigned readings instead of readers, and we evaluate this alternative in regards to intellectual property and fair use issues focusing on…

Speech Perception Deficits in Poor Readers: A Reply to Denenberg's Critique.

ERIC Educational Resources Information Center

Studdert-Kennedy, Michael; Mody, Maria; Brady, Susan

2000-01-01

This rejoinder to a critique of the authors' research on speech perception deficits in poor readers answers the specific criticisms and reaffirms their conclusion that the difficulty some poor readers have with rapid /ba/-/da/ discrimination does not stem from difficulty in discriminating the rapid spectral transitions at stop-vowel syllable…

So Long, Robot Reader! A Superhero Intervention Plan for Improving Fluency

ERIC Educational Resources Information Center

Marcell, Barclay; Ferraro, Christine

2013-01-01

This article presents an engaging means for turning disfluent readers into prosody superstars. Each week students align with Poetry Power Man and his superhero friends to battle the evil Robot Reader and his sidekicks. The Fluency Foursome helps students adhere to the multidimensional aspects of fluency where expression and comprehension are…

Visual and auditory synchronization deficits among dyslexic readers as compared to non-impaired readers: a cross-correlation algorithm analysis

PubMed Central

Sela, Itamar

2014-01-01

Visual and auditory temporal processing and crossmodal integration are crucial factors in the word decoding process. The speed of processing (SOP) gap (Asynchrony) between these two modalities, which has been suggested as related to the dyslexia phenomenon, is the focus of the current study. Nineteen dyslexic and 17 non-impaired University adult readers were given stimuli in a reaction time (RT) procedure where participants were asked to identify whether the stimulus type was only visual, only auditory or crossmodally integrated. Accuracy, RT, and Event Related Potential (ERP) measures were obtained for each of the three conditions. An algorithm to measure the contribution of the temporal SOP of each modality to the crossmodal integration in each group of participants was developed. Results obtained using this model for the analysis of the current study data, indicated that in the crossmodal integration condition the presence of the auditory modality at the pre-response time frame (between 170 and 240 ms after stimulus presentation), increased processing speed in the visual modality among the non-impaired readers, but not in the dyslexic group. The differences between the temporal SOP of the modalities among the dyslexics and the non-impaired readers give additional support to the theory that an asynchrony between the visual and auditory modalities is a cause of dyslexia. PMID:24959125

Does Feeling Come First? How Poetry Can Help Readers Broaden Their Understanding of Metacognition

ERIC Educational Resources Information Center

Eva-Wood, Amy L.

2008-01-01

Assuming that readers' emotional responses can enhance readers' metacognitive experiences and inform literary analysis, this study of 11th-grade poetry readers features instruction that models both cognitive and affective reading processes. The author: (1) Presents a case for more explicit attention to emotion in language arts classrooms; (2)…

Using Accelerated Reader with ESL Students.

ERIC Educational Resources Information Center

Hamilton, Betty

1997-01-01

Describes the use of Accelerated Reader, a computer program that instantly provides scored tests on a variety of books read by high school ESL (English as a Second Language) students as free voluntary reading. Topics include reading improvement programs, including writing assignments; and changes in students' reading habits. (LRW)

KURDISH READERS. PART I, NEWSPAPER KURDISH.

ERIC Educational Resources Information Center

ABDULLA, JAMAL JALAL; MCCARUS, ERNEST N.

ASSUMING A MASTERY OF THE CONTENTS OF THE "BASIC COURSE IN KURDISH" (BY THE SAME AUTHORS), THIS READER PRESENTS A VARIETY OF 28 ARTICLES SELECTED FROM THE IRAQI NEWSPAPERS "ZHIN" AND "KHEBAT." EACH LESSON BEGINS WITH A SELECTION WRITTEN IN KURDISH (MODIFIED ARABIC-PERSIAN) SCRIPT, FOLLOWED BY PHONEMIC TRANSCRIPTION…

Mind the Gap: Bridging the Divide between Non-Readers and Lifelong Readers with Hi-Lo Books

ERIC Educational Resources Information Center

Gleason, Carrie

2011-01-01

In the past few years, there has been increasing demand from school librarians for books for "reluctant readers"--despite the impressive offering of children's literature published each year and the success of blockbuster series like "Harry Potter, Diary of a Wimpy Kid, Twilight," and "Hunger Games," among others. This is also in addition to all…

Comparing Relations of Motivation, Engagement, and Achievement among Struggling and Advanced Adolescent Readers

PubMed Central

Lutz Klauda, Susan; Guthrie, John T.

2014-01-01

This longitudinal study examined the development of reading motivation, engagement, and achievement in early adolescence by comparing interrelations of these variables in struggling and advanced readers. Participants were 183 pairs of seventh grade students matched in gender, ethnicity, socioeconomic status, and school attended. They completed measures of reading motivations, engagement and comprehension for information text as well as measures of general reading comprehension and reading fluency twice during the school year. Advanced readers showed stronger relations of motivation and engagement with achievement than struggling readers. However, motivation predicted concurrent engagement and growth in engagement similarly for struggling and advanced readers. These results are interpreted as support for the hypothesis that cognitive challenges limit the relations of motivation and engagement to achievement for struggling readers. The discussion also considers the impact of the focus on the information text genre on the relations observed and implications of the findings for achievement motivation theories. PMID:25663747

Parietotemporal Stimulation Affects Acquisition of Novel Grapheme-Phoneme Mappings in Adult Readers

PubMed Central

Younger, Jessica W.; Booth, James R.

2018-01-01

Neuroimaging work from developmental and reading intervention research has suggested a cause of reading failure may be lack of engagement of parietotemporal cortex during initial acquisition of grapheme-phoneme (letter-sound) mappings. Parietotemporal activation increases following grapheme-phoneme learning and successful reading intervention. Further, stimulation of parietotemporal cortex improves reading skill in lower ability adults. However, it is unclear whether these improvements following stimulation are due to enhanced grapheme-phoneme mapping abilities. To test this hypothesis, we used transcranial direct current stimulation (tDCS) to manipulate parietotemporal function in adult readers as they learned a novel artificial orthography with new grapheme-phoneme mappings. Participants received real or sham stimulation to the left inferior parietal lobe (L IPL) for 20 min before training. They received explicit training over the course of 3 days on 10 novel words each day. Learning of the artificial orthography was assessed at a pre-training baseline session, the end of each of the three training sessions, an immediate post-training session and a delayed post-training session about 4 weeks after training. Stimulation interacted with baseline reading skill to affect learning of trained words and transfer to untrained words. Lower skill readers showed better acquisition, whereas higher skill readers showed worse acquisition, when training was paired with real stimulation, as compared to readers who received sham stimulation. However, readers of all skill levels showed better maintenance of trained material following parietotemporal stimulation, indicating a differential effect of stimulation on initial learning and consolidation. Overall, these results indicate that parietotemporal stimulation can enhance learning of new grapheme-phoneme relationships in readers with lower reading skill. Yet, while parietotemporal function is critical to new learning, its role in

Struggling Readers: Assessment and Instruction in Grades K-6. Solving Problems in the Teaching of Literacy.

ERIC Educational Resources Information Center

Balajthy, Ernest; Lipa-Wade, Sally

This book focuses on three distinct types of struggling readers that teachers will instantly recognize from their own classrooms--the "Catch-On Reader," the "Catch-Up Reader," and the "Stalled Reader." The book provides detailed case studies which bring to life the specific problems these students are likely to face…

Speech Perception Deficits in Poor Readers: Auditory Processing or Phonological Coding?

ERIC Educational Resources Information Center

Mody, Maria; And Others

1997-01-01

Forty second-graders, 20 good and 20 poor readers, completed a /ba/-/da/ temporal order judgment (TOJ) task. The groups did not differ in TOJ when /ba/ and /da/ were paired with more easily discriminated syllables. Poor readers' difficulties with /ba/-/da/ reflected perceptual confusion between phonetically similar syllables rather than difficulty…

Predicting Text Comprehension, Processing, and Familiarity in Adult Readers: New Approaches to Readability Formulas

ERIC Educational Resources Information Center

Crossley, Scott A.; Skalicky, Stephen; Dascalu, Mihai; McNamara, Danielle S.; Kyle, Kristopher

2017-01-01

Research has identified a number of linguistic features that influence the reading comprehension of young readers; yet, less is known about whether and how these findings extend to adult readers. This study examines text comprehension, processing, and familiarity judgment provided by adult readers using a number of different approaches (i.e.,…

The Bayesian reader: explaining word recognition as an optimal Bayesian decision process.

PubMed

Norris, Dennis

2006-04-01

This article presents a theory of visual word recognition that assumes that, in the tasks of word identification, lexical decision, and semantic categorization, human readers behave as optimal Bayesian decision makers. This leads to the development of a computational model of word recognition, the Bayesian reader. The Bayesian reader successfully simulates some of the most significant data on human reading. The model accounts for the nature of the function relating word frequency to reaction time and identification threshold, the effects of neighborhood density and its interaction with frequency, and the variation in the pattern of neighborhood density effects seen in different experimental tasks. Both the general behavior of the model and the way the model predicts different patterns of results in different tasks follow entirely from the assumption that human readers approximate optimal Bayesian decision makers. ((c) 2006 APA, all rights reserved).

On forward inferences of fast and slow readers. An eye movement study

PubMed Central

Hawelka, Stefan; Schuster, Sarah; Gagl, Benjamin; Hutzler, Florian

2015-01-01

Unimpaired readers process words incredibly fast and hence it was assumed that top-down processing, such as predicting upcoming words, would be too slow to play an appreciable role in reading. This runs counter the major postulate of the predictive coding framework that our brain continually predicts probable upcoming sensory events. This means, it may generate predictions about the probable upcoming word during reading (dubbed forward inferences). Trying to asses these contradictory assumptions, we evaluated the effect of the predictability of words in sentences on eye movement control during silent reading. Participants were a group of fluent (i.e., fast) and a group of speed-impaired (i.e., slow) readers. The findings indicate that fast readers generate forward inferences, whereas speed-impaired readers do so to a reduced extent - indicating a significant role of predictive coding for fluent reading. PMID:25678030

Geometry of the Cocos Plate Under North American Plate

NASA Astrophysics Data System (ADS)

Perez-Campos, X.

2015-12-01

The Cocos plate subducts under the North American plate with a complex geometry, and previous seismicity studies revealed some of this complexity. However, details of the geometry and the depth that the plate penetrates werelargely unknown. Since 2004, temporary experiments and the expansion of the permanent network of the Servicio Sismológico Nacional (SSN, Mexican National Seismological Service) have improved resolution of the plate geometry and have helped to map its descent into the upper mantle. Going from northwest to southeast, the Cocos plate appears to be fragmenting into north and south segments. The north segment subducts with an angle of ~30º and the south with an angle of ~10-15º. The transition is smooth near the trench and progresses to a tear at depth; this coincides with the projection of the Orozco Fracture Zone to depth. Also, this transition marks the limit of the presence to the south of an ultra slow velocity layer (USL) on top of the slab.South of this transition, the Cocos plate subducts horizontally , underplating the North American plate for a distance of ~140 to ~300 km from the trench. Along this horizontal region, silent slow events (SSE) and tectonic tremor (TT) have been observed. At a distance of 300 km from the trench (beneath central Mexico), the plate dives into the mantle with an angle of 76º to a depth of 500 km. This geometry changes abruptly to the south, marking the eastern limit of the USL. This change seems to be also characterized by a tear on the slab. Finally to the south, the Cocos plate subducts with a constant angle of 26º. This presentation summarizes the work of many contributors including A. Arciniega-Ceballos, M. Brudzinski, E. Cabral-Cano, T. Chen, R. Clayton,F. Cordoba-Montiel,P. Davis,S. Dougherty,F. Green, M. Gurnis, D. V. Helmberger, A. Husker,A. Iglesias, Y. Kim, V. Manea, D. Melgar, M. Rodríguez-Domínguez,S. K. Singh, T.-R. A. Song, C. M. Valdés-González, D. Valencia-Cabrera

Sub-Plate Overlap Code Documentation

NASA Technical Reports Server (NTRS)

Taff, L. G.; Bucciarelli, B.; Zarate, N.

1997-01-01

An expansion of the plate overlap method of astrometric data reduction to a single plate has been proposed and successfully tested. Each plate is (artificially) divided into sub-plates which can then be overlapped. This reduces the area of a 'plate' over which a plate model needs to accurately represent the relationship between measured coordinates and standard coordinates. Application is made to non-astrographic plates such as Schmidt plates and to wide-field astrographic plates. Indeed, the method is completely general and can be applied to any type of recording media.

Visual assessment of breast density using Visual Analogue Scales: observer variability, reader attributes and reading time

NASA Astrophysics Data System (ADS)

Ang, Teri; Harkness, Elaine F.; Maxwell, Anthony J.; Lim, Yit Y.; Emsley, Richard; Howell, Anthony; Evans, D. Gareth; Astley, Susan; Gadde, Soujanya

2017-03-01

Breast density is a strong risk factor for breast cancer and has potential use in breast cancer risk prediction, with subjective methods of density assessment providing a strong relationship with the development of breast cancer. This study aims to assess intra- and inter-observer variability in visual density assessment recorded on Visual Analogue Scales (VAS) among trained readers, and examine whether reader age, gender and experience are associated with assessed density. Eleven readers estimated the breast density of 120 mammograms on two occasions 3 years apart using VAS. Intra- and inter-observer agreement was assessed with Intraclass Correlation Coefficient (ICC) and variation between readers visualised on Bland-Altman plots. The mean scores of all mammograms per reader were used to analyse the effect of reader attributes on assessed density. Excellent intra-observer agreement (ICC>0.80) was found in the majority of the readers. All but one reader had a mean difference of <10 percentage points from the first to the second reading. Inter-observer agreement was excellent for consistency (ICC 0.82) and substantial for absolute agreement (ICC 0.69). However, the 95% limits of agreement for pairwise differences were -6.8 to 15.7 at the narrowest and 0.8 to 62.3 at the widest. No significant association was found between assessed density and reader age, experience or gender, or with reading time. Overall, the readers were consistent in their scores, although some large variations were observed. Reader evaluation and targeted training may alleviate this problem.

Moroccan Arabic Intermediate Reader. Part I.

ERIC Educational Resources Information Center

Alami, Wali A.; Hodge, Carlton T., Ed.

This intermediate-level reader in Moroccan Arabic is designed to provide (1) a text which will be articulatable with a basic course, (2) natural language in "advanced colloquial" rather than a literary style, and (3) material which is culturally insightful. The cultural aspects represented are those of inter-personal relationships,…

Motivating Readers with Illustrative eText

ERIC Educational Resources Information Center

Edwards, Peter

2008-01-01

Assistive technology (AT)--the use of technology to assist individuals with disabilities--encompasses a wide range of applications including problems with reading, writing, and language arts; speech-language disorders; students with mild disabilities; and older students. An exciting and motivational use of AT to assist readers that has not been…

Japanese-American Internment. A Historical Reader.

ERIC Educational Resources Information Center

2000

This Historical Reader on "Japanese American Internment" in World War II introduces students to key events and issues during the period through the voices of people with firsthand experienced. Source documents and illustrations are arranged in chronological order and/or thematic units that establish context. Each selection is followed by…

Hydrogel-Based Fluorescent Dual pH and Oxygen Sensors Loaded in 96-Well Plates for High-Throughput Cell Metabolism Studies.

PubMed

Wu, Shanshan; Wu, Siying; Yi, Zheyuan; Zeng, Fei; Wu, Weizhen; Qiao, Yuan; Zhao, Xingzhong; Cheng, Xing; Tian, Yanqing

2018-02-13

In this study, we developed fluorescent dual pH and oxygen sensors loaded in multi-well plates for in-situ and high-throughput monitoring of oxygen respiration and extracellular acidification during microbial cell growth for understanding metabolism. Biocompatible PHEMA-co-PAM materials were used as the hydrogel matrix. A polymerizable oxygen probe (OS2) derived from PtTFPP and a polymerizable pH probe (S2) derived from fluorescein were chemically conjugated into the matrix to solve the problem of the probe leaching from the matrix. Gels were allowed to cure directly on the bottom of 96-well plates at room-temperature via redox polymerization. The influence of matrix's composition on the sensing behaviors was investigated to optimize hydrogels with enough robustness for repeatable use with good sensitivity. Responses of the dual sensing hydrogels to dissolved oxygen (DO) and pH were studied. These dual oxygen-pH sensing plates were successfully used for microbial cell-based screening assays, which are based on the measurement of fluorescence intensity changes induced by cellular oxygen consumption and pH changes during microbial growth. This method may provide a real-time monitoring of cellular respiration, acidification, and a rapid kinetic assessment of multiple samples for cell viability as well as high-throughput drug screening. All of these assays can be carried out by a conventional plate reader.

Effect of Plate Curvature on Blast Response of Structural Steel Plates

NASA Astrophysics Data System (ADS)

Veeredhi, Lakshmi Shireen Banu; Ramana Rao, N. V.; Veeredhi, Vasudeva Rao

2018-04-01

In the present work an attempt is made, through simulation studies, to determine the effect of plate curvature on the blast response of a door structure made of ASTM A515 grade 50 steel plates. A door structure with dimensions of 5.142 m × 2.56 m × 10 mm having six different radii of curvatures is analyzed which is subjected to blast load. The radii of curvature investigated are infinity (flat plate), 16.63, 10.81, 8.26, 6.61 and 5.56 m. In the present study, a stand-off distance of 11 m is considered for all the cases. Results showed that the door structure with smallest radius of curvature experienced least plastic deformation and yielding when compared to a door with larger radius of curvature with same projected area. From the present Investigation, it is observed that, as the radius of curvature of the plate increases, the deformation mode gradually shifts from indentation mode to flexural mode. The plates with infinity and 16.63 m radius of curvature have undergone flexural mode of deformation and plates with 6.61 and 5.56 m radius of curvature undergo indentation mode of deformation. Whereas, mixed mode of deformation that consists of both flexural and indentation mode of deformations are seen in the plates with radius of curvature 10.81 and 8.26 m. As the radius of curvature of the plate decreases the ability of the plate to mitigate the effect the blast loads increased. It is observed that the plate with smaller radius of curvature deflects most of the blast energy and results in least indentation mode of deformation. The most significant observation made in the present investigation is that the strain energy absorbed by the steel plate gets reduced to 1/3 rd when the radius of curvature is approximately equal to the stand-off distance which could be the critical radius of curvature.

The Experiences in Processing Policies and Contracts by Adult ESL Readers

ERIC Educational Resources Information Center

Abiog, Evalyn B.

2017-01-01

The present study describes the experiences of adult English as a Second Language (ESL) readers in processing legal texts prior to entering a financial agreement. A preliminary survey was conducted to determine the commonly read policies and contracts of adult ESL reader-consumers, which revealed those of banks and life-insurance companies; hence,…

Reading While Black: Exploring the Voices of African American Struggling Readers

ERIC Educational Resources Information Center

York, Tinaya

2013-01-01

Early adolescent Black struggling readers do not believe being Black affects their reading. While race is not a factor that affects reading achievement for these young adolescent struggling readers when it comes to reading, their voices do highlight that there are racialized contexts in which reading and learning how to read occur. Their early…

Biography Today: Profiles of People of Interest to Young Readers, 2000.

ERIC Educational Resources Information Center

Harris, Laurie Lanzen, Ed.; Abbey, Cherie D., Ed.

2000-01-01

This is the ninth volume of a series designed and written for young readers ages 9 and above. It contains three issues and profiles individuals whom young people want to know about most: entertainers, athletes, writers, illustrators, cartoonists, and political leaders. The publication was created to appeal to young readers in a format they can…

Socially Constituting Middle Childhood Students as Struggling Readers in Peer Interactions

ERIC Educational Resources Information Center

Grigorenko, Margaret Crook

2010-01-01

This study investigates how students in third-, fourth- and fifth-grade classes at a rural school are socially constituted as "struggling readers," and how this social status impacts reading achievement. It examines the ways that some students are positioned as inferior readers in relation to their classmates during peer-to-peer literacy events.…

Biography Today: Profiles of People of Interest to Young Readers, 1994.

ERIC Educational Resources Information Center

Harris, Laurie Lanzen, Ed.

1994-01-01

This document is the third volume of a series designed and written for the young reader aged 9 and above. It contains three issues and covers individuals that young people want to know about most: entertainers, athletes, writers, illustrators, cartoonists, and political leaders. The publication was created to appeal to young readers in a format…

Selecting "App"ealing and "App"ropriate Book Apps for Beginning Readers

ERIC Educational Resources Information Center

Cahill, Maria; McGill-Franzen, Anne

2013-01-01

Beginning with a brief rationale for selecting quality digital picture book apps for beginning readers, the authors describe the elements of digital picture books and provide a brief review of the instructional benefits of digital picture book use for beginning readers. They then present a detailed taxonomy for selecting quality picture book apps.…

Biography Today: Profiles of People of Interest to Young Readers, 1999.

ERIC Educational Resources Information Center

Harris, Laurie Lanzen, Ed.; Abbey, Cherie D., Ed.

1999-01-01

This document is the eighth volume of a series designed and written for the young reader aged 9 and above. It contains three issues and covers individuals whom young people want to know about most: entertainers, athletes, writers, illustrators, cartoonists, and political leaders. The publication was created to appeal to young readers in a format…

CALUTRON FACE PLATE

DOEpatents

Brobeck, W.M.

1959-08-25

The construction of a removable cover plate for a calutron tank is described. The plate is fabricated of a rectangular frame member to which is welded a bowed or dished plate of thin steel, reinforced with transverse stiffening ribs. When the tank is placed between the poles of a magnet, the plate may be pivoted away from the tank and magnet and is adapted to support the ion separation mechanism secured to its inner side as well as the vacuum load within the tank.

Impact of different study populations on reader behavior and performance metrics: initial results

NASA Astrophysics Data System (ADS)

Gallas, Brandon D.; Pisano, Etta; Cole, Elodia; Myers, Kyle

2017-03-01

The FDA recently completed a study on design methodologies surrounding the Validation of Imaging Premarket Evaluation and Regulation called VIPER. VIPER consisted of five large reader sub-studies to compare the impact of different study populations on reader behavior as seen by sensitivity, specificity, and AUC, the area under the ROC curve (receiver operating characteristic curve). The study investigated different prevalence levels and two kinds of sampling of non-cancer patients: a screening population and a challenge population. The VIPER study compared full-field digital mammography (FFDM) to screenfilm mammography (SFM) for women with heterogeneously dense or extremely dense breasts. All cases and corresponding images were sampled from Digital Mammographic Imaging Screening Trial (DMIST) archives. There were 20 readers (American Board Certified radiologists) for each sub-study, and instead of every reader reading every case (fully-crossed study), readers and cases were split into groups to reduce reader workload and the total number of observations (split-plot study). For data collection, readers first decided whether or not they would recall a patient. Following that decision, they provided an ROC score for how close or far that patient was from the recall decision threshold. Performance results for FFDM show that as prevalence increases to 50%, there is a moderate increase in sensitivity and decrease in specificity, whereas AUC is mainly flat. Regarding precision, the statistical efficiency (ratio of variances) of sensitivity and specificity relative to AUC are 0.66 at best and decrease with prevalence. Analyses comparing modalities and the study populations (screening vs. challenge) are still ongoing.

Impact of Different Study Populations on Reader Behavior and Performance Metrics: Initial Results

PubMed Central

Gallas, Brandon D.; Pisano, Etta; Cole, Elodia; Myers, Kyle

2017-01-01

The FDA recently completed a study on design methodologies surrounding the Validation of Imaging Premarket Evaluation and Regulation called VIPER. VIPER consisted of five large reader sub-studies to compare the impact of different study populations on reader behavior as seen by sensitivity, specificity, and AUC, the area under the ROC curve (receiver operating characteristic curve). The study investigated different prevalence levels and two kinds of sampling of non-cancer patients: a screening population and a challenge population. The VIPER study compared full-field digital mammography (FFDM) to screen-film mammography (SFM) for women with heterogeneously dense or extremely dense breasts. All cases and corresponding images were sampled from Digital Mammographic Imaging Screening Trial (DMIST) archives. There were 20 readers (American Board Certified radiologists) for each sub-study, and instead of every reader reading every case (fully-crossed study), readers and cases were split into groups to reduce reader workload and the total number of observations (split-plot study). For data collection, readers first decided whether or not they would recall a patient. Following that decision, they provided an ROC score for how close or far that patient was from the recall decision threshold. Performance results for FFDM show that as prevalence increases to 50%, there is a moderate increase in sensitivity and decrease in specificity, whereas AUC is mainly flat. Regarding precision, the statistical efficiency (ratio of variances) of sensitivity and specificity relative to AUC are 0.66 at best and decrease with prevalence. Analyses comparing modalities and the study populations (screening vs. challenge) are still ongoing. PMID:28845078

Finding a (W)hole in the Text: A Case Study of Four Readers Reading.

ERIC Educational Resources Information Center

Nance, Mary Moore

The purpose of the study was to examine: (1) which perspectives of Reader Response Theory were most applicable in this study; (2) which factors influenced reader responses; and (3) how readers' responses changed over time. The four participants for this case study were chosen from a subject pool of 10 initiate adult full-time divinity students in…

What Strategies Do Resistive Readers Use to Fake Their Way through School Assigned Texts?

ERIC Educational Resources Information Center

Krieger, Courtney M.

2012-01-01

A trend among adolescent readers is the practice of fake-reading. Fake-reading occurs when students who can read choose not to, and develop strategies to fake their way through school-assigned texts to earn good grades. This study examines four resistive readers, or fake-readers, assigned to read Neal Shusterman's "Unwind" (2007)…

Plate convergence at the westernmost Philippine Sea Plate

NASA Astrophysics Data System (ADS)

Wu, Wen-Nan; Hsu, Shu-Kun; Lo, Chung-Liang; Chen, How-Wei; Ma, Kuo-Fong

2009-03-01

To understand the convergent characteristics of the westernmost plate boundary between the Philippine Sea Plate (PSP) and Eurasian Plate (EP), we have calculated the stress states of plate motion by focal mechanisms. Cataloged by the Harvard centroid moment tensor solutions (Harvard CMT) and the Broadband Array in Taiwan (BATS) moment tensor, 251 focal mechanisms are used to determine the azimuths of the principal stress axes. We first used all the data to derive the mean stress tensor of the study area. The inversion result shows that the stress regime has a maximum compression along the direction of azimuth N299°. This result is consistent with the general direction of the rigid plate motion between the PSP and EP in the study area. In order to understand the spatial variation of the regional stress pattern, we divided the study area into six sub-areas (blocks A to F) based on the feature of the free-air gravity anomaly. We compare the compressive directions obtained from the stress inversion with the plate motions calculated by the Euler pole and the Global Positioning System (GPS) analysis. As a result, the azimuth of the maximum stress axis, σ1, generally agrees with the directions of the theoretical plate motion and GPS velocity vectors except block C (Lanhsu region) and block F (Ilan plain region). The discrepancy of convergent direction near the Ilan plain region is probably caused by the rifting of the Okinawa Trough. The deviation of the σ1 azimuth in the Lanhsu region could be attributed to a southwestward extrusion of the Luzon Arc (LA) block between 21°N and 22°N whose northern boundary may be associated with the right-lateral NE-SW trending fault (i.e. Huatung Fault, HF) along the Taitung Canyon. Comparing the σ1 stress patterns between block C and block D, great strain energy along HF may not be completely released yet. Alternatively, the upper crust of block C may significantly have decoupled from its lower crust or uppermost mantle.

Measuring the Reader Self-Perceptions of Adolescents: Introducing the RSPS2

ERIC Educational Resources Information Center

Henk, William A.; Marinak, Barbara A.; Melnick, Steven A.

2013-01-01

This paper introduces a new affective instrument for assessing the reader self-perceptions of students in grades seven through ten. The Reader Self-Perception Scale 2 (RSPS2) builds upon its predecessor, the RSPS, a tool that measures the reading efficacy beliefs of children in grades four through six. New items were created for the RSPS2 to…

Effect of an Interactive Literacy Website on Struggling Readers' Comprehension

ERIC Educational Resources Information Center

Caldwell, Bettie Johnson

2013-01-01

The issue of struggling readers is a major concern in the field of education. An overwhelming number of students are beginning school ill-equipped to read. The purpose of this quantitative study was to explore the effect of an interactive literacy website on the reading comprehension scores of 2nd grade students identified as struggling readers.…

"I Never Thought I Would Read This Much": Becoming a Reader

ERIC Educational Resources Information Center

Barone, Diane; Barone, Rebecca

2018-01-01

The purpose of this qualitative study was to describe the reading volume and book choices of fourth-grade students and how they identified as readers. Students were encouraged to read 50 books independently. The results showed that students read throughout the year. Grade-level readers described themselves as being a part of the book, while above-…

Guiding Young Readers to Multicultural Literature

ERIC Educational Resources Information Center

Hinton-Johnson, KaaVonia; Dickinson, Gail

2005-01-01

Stocking the shelves of library media centers with multicultural literature is not enough, it is important that children are helped to choose the ones that would interest them as reading about various cultures is of great benefit to young readers. The importance of accurately representing to children a multicultural society is emphasized and…

Measuring and Predicting Graded Reader Difficulty

ERIC Educational Resources Information Center

Holster, Trevor A.; Lake, J. W.; Pellowe, William R.

2017-01-01

This study used many-faceted Rasch measurement to investigate the difficulty of graded readers using a 3-item survey. Book difficulty was compared with Kyoto Level, Yomiyasusa Level, Lexile Level, book length, mean sentence length, and mean word frequency. Word frequency and Kyoto Level were found to be ineffective in predicting students'…

38 CFR 21.150 - Reader service.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Special Rehabilitation Services § 21.150 Reader service. (a) Limitations on vision. A veteran considered... vision is 20/200 in both eyes; (2) Whose central vision is greater than 20/200 but whose field of vision... greater than 20 degrees; or (3) With impaired vision, whose condition or prognosis indicates that the...

38 CFR 21.150 - Reader service.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Special Rehabilitation Services § 21.150 Reader service. (a) Limitations on vision. A veteran considered... vision is 20/200 in both eyes; (2) Whose central vision is greater than 20/200 but whose field of vision... greater than 20 degrees; or (3) With impaired vision, whose condition or prognosis indicates that the...

Multicolor printing plate joining

NASA Technical Reports Server (NTRS)

Waters, W. J. (Inventor)

1984-01-01

An upper plate having ink flow channels and a lower plate having a multicolored pattern are joined. The joining is accomplished without clogging any ink flow paths. A pattern having different colored parts and apertures is formed in a lower plate. Ink flow channels each having respective ink input ports are formed in an upper plate. The ink flow channels are coated with solder mask and the bottom of the upper plate is then coated with solder. The upper and lower plates are pressed together at from 2 to 5 psi and heated to a temperature of from 295 F to 750 F or enough to melt the solder. After the plates have cooled and the pressure is released, the solder mask is removed from the interior passageways by means of a liquid solvent.

Vibrotactile masking experiments reveal accelerated somatosensory processing in congenitally blind braille readers.

PubMed

Bhattacharjee, Arindam; Ye, Amanda J; Lisak, Joy A; Vargas, Maria G; Goldreich, Daniel

2010-10-27

Braille reading is a demanding task that requires the identification of rapidly varying tactile patterns. During proficient reading, neighboring characters impact the fingertip at ∼100 ms intervals, and adjacent raised dots within a character at 50 ms intervals. Because the brain requires time to interpret afferent sensorineural activity, among other reasons, tactile stimuli separated by such short temporal intervals pose a challenge to perception. How, then, do proficient Braille readers successfully interpret inputs arising from their fingertips at such rapid rates? We hypothesized that somatosensory perceptual consolidation occurs more rapidly in proficient Braille readers. If so, Braille readers should outperform sighted participants on masking tasks, which demand rapid perceptual processing, but would not necessarily outperform the sighted on tests of simple vibrotactile sensitivity. To investigate, we conducted two-interval forced-choice vibrotactile detection, amplitude discrimination, and masking tasks on the index fingertips of 89 sighted and 57 profoundly blind humans. Sighted and blind participants had similar unmasked detection (25 ms target tap) and amplitude discrimination (compared with 100 μm reference tap) thresholds, but congenitally blind Braille readers, the fastest readers among the blind participants, exhibited significantly less masking than the sighted (masker, 50 Hz, 50 μm; target-masker delays, ±50 and ±100 ms). Indeed, Braille reading speed correlated significantly and specifically with masking task performance, and in particular with the backward masking decay time constant. We conclude that vibrotactile sensitivity is unchanged but that perceptual processing is accelerated in congenitally blind Braille readers.

Vibrotactile masking experiments reveal accelerated somatosensory processing in congenitally blind Braille readers

PubMed Central

Bhattacharjee, Arindam; Ye, Amanda J.; Lisak, Joy A.; Vargas, Maria G.; Goldreich, Daniel

2010-01-01

Braille reading is a demanding task that requires the identification of rapidly varying tactile patterns. During proficient reading, neighboring characters impact the fingertip at about 100-ms intervals, and adjacent raised dots within a character at 50-ms intervals. Because the brain requires time to interpret afferent sensorineural activity, among other reasons, tactile stimuli separated by such short temporal intervals pose a challenge to perception. How, then, do proficient Braille readers successfully interpret inputs arising from their fingertips at such rapid rates? We hypothesized that somatosensory perceptual consolidation occurs more rapidly in proficient Braille readers. If so, Braille readers should outperform sighted participants on masking tasks, which demand rapid perceptual processing, but would not necessarily outperform the sighted on tests of simple vibrotactile sensitivity. To investigate, we conducted two-interval forced-choice vibrotactile detection, amplitude discrimination, and masking tasks on the index fingertips of 89 sighted and 57 profoundly blind humans. Sighted and blind participants had similar unmasked detection (25-ms target tap) and amplitude discrimination (compared to 100-micron reference tap) thresholds, but congenitally blind Braille readers, the fastest readers among the blind participants, exhibited significantly less masking than the sighted (masker: 50-Hz, 50-micron; target-masker delays ±50 and ±100 ms). Indeed, Braille reading speed correlated significantly and specifically with masking task performance, and in particular with the backward masking decay time constant. We conclude that vibrotactile sensitivity is unchanged, but that perceptual processing is accelerated in congenitally blind Braille readers. PMID:20980584

Biomechanical comparison of anterior cervical plating and combined anterior/lateral mass plating.

PubMed

Adams, M S; Crawford, N R; Chamberlain, R H; Bse; Sonntag, V K; Dickman, C A

2001-01-01

Previous studies showed anterior plates of older design to be inadequate for stabilizing the cervical spine in all loading directions. No studies have investigated enhancement in stability obtained by combining anterior and posterior plates. To determine which modes of loading are stabilized by anterior plating after a cervical burst fracture and to determine whether adding posterior plating further significantly stabilizes the construct. A repeated-measures in vitro biomechanical flexibility experiment was performed to investigate how surgical destabilization and subsequent addition of hardware components alter spinal stability. Six human cadaveric specimens were studied. Angular range of motion (ROM) and neutral zone (NZ) were quantified during flexion, extension, lateral bending, and axial rotation. Nonconstraining, nondestructive torques were applied while recording three-dimensional motion optoelectronically. Specimens were tested intact, destabilized by simulated burst fracture with posterior distraction, plated anteriorly with a unicortical locking system, and plated with a combined anterior/posterior construct. The anterior plate significantly (p<.05) reduced the ROM relative to normal in all modes of loading and significantly reduced the NZ in flexion and extension. Addition of the posterior plates further significantly reduced the ROM in all modes of loading and reduced the NZ in lateral bending. Anterior plating systems are capable of substantially stabilizing the cervical spine in all modes of loading after a burst fracture. The combined approach adds significant stability over anterior plating alone in treating this injury but may be unnecessary clinically. Further study is needed to assess the added clinical benefits of the combined approach and associated risks.

The effect of plate-scale rheology and plate interactions on intraplate seismicity

NASA Astrophysics Data System (ADS)

So, Byung-Dal; Capitanio, Fabio A.

2017-11-01

We use finite element modeling to investigate on the stress loading-unloading cycles and earthquakes occurrence in the plate interiors, resulting from the interactions of tectonic plates along their boundary. We model a visco-elasto-plastic plate embedding a single or multiple faults, while the tectonic stress is applied along the plate boundary by an external loading visco-elastic plate, reproducing the tectonic setting of two interacting lithospheres. Because the two plates deform viscously, the timescale of stress accumulation and release on the faults is self-consistently determined, from the boundary to the interiors, and seismic recurrence is an emerging feature. This approach overcomes the constraints on recurrence period imposed by stress (stress-drop) and velocity boundary conditions, while here it is unconstrained. We illustrate emerging macroscopic characteristics of this system, showing that the seismic recurrence period τ becomes shorter as Γ and Θ decreases, where Γ =ηI /ηL, the viscosity ratio of the viscosities of the internal fault-embedded to external loading plates, respectively, and Θ =σY /σL the stress ratio of the elastic limit of the fault to far-field loading stress. When the system embeds multiple, randomly distributed faults, stress transfer results in recurrence period deviations, however the time-averaged recurrence period of each fault show the same dependence on Γ and Θ, illustrating a characteristic collective behavior. The control of these parameters prevails even when initial pre-stress was randomly assigned in terms of the spatial arrangement and orientation on the internal plate, mimicking local fluctuations. Our study shows the relevance of macroscopic rheological properties of tectonic plates on the earthquake occurrence in plate interiors, as opposed to local factors, proposing a viable model for the seismic behavior of continent interiors in the context of large-scale, long-term deformation of interacting tectonic

Sputtering and ion plating

NASA Technical Reports Server (NTRS)

1972-01-01

The proceedings of a conference on sputtering and ion plating are presented. Subjects discussed are: (1) concepts and applications of ion plating, (2) sputtering for deposition of solid film lubricants, (3) commercial ion plating equipment, (4) industrial potential for ion plating and sputtering, and (5) fundamentals of RF and DC sputtering.

Framing Risk: Audience and Reader Factors.

ERIC Educational Resources Information Center

Hornig, Susanna

1992-01-01

Finds that lay readers respond to the risk implicit in news stories involving science and technology along four factors: (1) the proposition that science and technology are expensive and risky; (2) the idea that science and technology can have negative effects; (3) concerns associated with control and dependency; and (4) fear that science and…

Project Physics Reader 6, The Nucleus.

ERIC Educational Resources Information Center

Harvard Univ., Cambridge, MA. Harvard Project Physics.

As a supplement to Project Physics Unit 6, a collection of articles is presented in this reader for student browsing. Five excerpts are concerned with the nuclear energy revolution, the 20th birthday and possible consequences of the atomic age, a scientist's view of science, and relations between mathematics and physics. Six book passages are…

Newspaper Reader Interest in Business News.

ERIC Educational Resources Information Center

Schweitzer, John C.; Saathoff, Roger C.

A study was conducted to determine if interest in business and financial news could be predicted from factors other than demographic variables. It was hypothesized that the type and number of personal financial investments the reader had would predict interest in business and financial news. In a telephone survey, 376 adults in a large,…

Rights of Postsecondary Readers and Learners

ERIC Educational Resources Information Center

Greenbaum, JoAnne; Angus, Kathryn Bartle

2018-01-01

A position statement on the rights of adult readers and learners was adopted by the CRLA board in 2002 and published with a theoretical rationale in ["Journal of College Reading and Learning"] "JCRL," Spring 2003. The statement was a guideline for educators seeking to improve the quality of adult education. In 2016, at the…

Classic Readers Theatre for Young Adults.

ERIC Educational Resources Information Center

Barchers, Suzanne I.; Kroll, Jennifer L.

This book presents 16 original scripts that have been adapted from classic works of literature for use for readers theatre with young adults and ESL (English as a Second Language) students. Adaptations of the following works are included: "Little Women" (Louisa May Alcott); episodes from "Don Quixote" (Miguel de Cervantes; "The Necklace" (Guy de…

The Role of Reader Characteristics in Processing and Learning from Informational Text

ERIC Educational Resources Information Center

Fox, Emily

2009-01-01

This article considers the role of reader characteristics in processing and learning from informational text, as revealed in think-aloud research. A theoretical framework for relevant aspects of readers' processing and products was developed. These relevant aspects included three attentional foci for processing (comprehension, monitoring, and…

Emergent Reader--Mid-Year: A Demonstration of Book Buddies in Action. [Videotape].

ERIC Educational Resources Information Center

Invernizzi, Marcia; Juel, Connie

The "Book Buddies" manual and "Emergent Reader" training videos provide comprehensive and easy-to-implement guidelines for setting up and running a successful tutorial program in the early grades. Portraying the "Book Buddies" model in practice, this 44-minute videotape, entitled "Emergent Reader--Mid-Year"…

Emergent Reader--Day One: A Demonstration of Book Buddies in Action. [Videotape].

ERIC Educational Resources Information Center

Invernizzi, Marcia; Juel, Connie

The "Book Buddies" manual and "Emergent Reader" training videos provide comprehensive and easy-to-implement guidelines for setting up and running a successful tutorial program in the early grades. Portraying the "Book Buddies" model in practice, this 51-minute videotape entitled "Emergent Reader--Day One"…

[Impact on reading scientific articles:an attempt to dialogue with "my reader"].

PubMed

Akerman, Marco

2016-03-01

This article discusses the concept of "impact" and is based on the scientific output of the author that is examined for the analysis of impacts from the qualitative standpoint. It is done not as an end in itself, but under the aegis of the author/text/reader relationship. Seeking to establish this relationship, the way in which the author is quoted in a selected article, entering each of the quotes and identifying what aspects were emphasized by the readers who referenced the quote is explored in detail. This qualitative observation of each of the quotes provided an indication of how each author/reader perceived the original text. This personal experience of this finite and delicate dialogue with "my reader" is presented here as a recommendation, to anyone who may be interested, of a viable device that can be repeated by authors in order to re-visit their writings based on the acknowledgement of the impact that it has on others.

Poor readers' retrieval mechanism: efficient access is not dependent on reading skill

PubMed Central

Johns, Clinton L.; Matsuki, Kazunaga; Van Dyke, Julie A.

2015-01-01

A substantial body of evidence points to a cue-based direct-access retrieval mechanism as a crucial component of skilled adult reading. We report two experiments aimed at examining whether poor readers are able to make use of the same retrieval mechanism. This is significant in light of findings that poor readers have difficulty retrieving linguistic information (e.g., Perfetti, 1985). Our experiments are based on a previous demonstration of direct-access retrieval in language processing, presented in McElree et al. (2003). Experiment 1 replicates the original result using an auditory implementation of the Speed-Accuracy Tradeoff (SAT) method. This finding represents a significant methodological advance, as it opens up the possibility of exploring retrieval speeds in non-reading populations. Experiment 2 provides evidence that poor readers do use a direct-access retrieval mechanism during listening comprehension, despite overall poorer accuracy and slower retrieval speeds relative to skilled readers. The findings are discussed with respect to hypotheses about the source of poor reading comprehension. PMID:26528212

The peer review process: a primer for JNIS readers.

PubMed

Hirsch, Joshua A; Manchikanti, Laxmaiah; Albuquerque, Felipe C; Leslie-Mazwi, Thabele M; Lev, Michael H; Linfante, Italo; Mocco, J; Rai, Ansaar T; Schaefer, Pamela W; Tarr, Robert W

2017-07-01

Peer review of scientific articles submitted for publication has been such an integral component of innovation in science and medicine that participants (be they readers, reviewers, or editors) seldom consider its complexity. Not surprisingly, much has been written about scientific peer review. The aim of this report is to share some of the elements of that discourse with readers of the Journal of NeuroInterventional Surgery ( JNIS ). Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

Teaching Content Material through Reader's Theater

ERIC Educational Resources Information Center

Forney, Melissa

2013-01-01

When it comes to content area material, much of what students read and learn is predicated on information they have read before and are supposed to remember. Teachers often use silent reading and round robin reading as preferred reading methods to help students learn content area material. The objective of this study was to test reader's theater…

Young Readers Programme Evaluation 2015/2016

ERIC Educational Resources Information Center

Pabion, Clémence; Clark, Christina

2016-01-01

The Young Readers Programme (YRP) motivates children to read for enjoyment by running a series of three literacy-focused events, teaching children strategies to choose books that are right for them, and showing them that reading can be enjoyable. One of the most effective ways of developing children's literacy skills is to engage them in reading…

Struggling Readers: An Action Research Project.

ERIC Educational Resources Information Center

Scordias, Margaret

A study focused on designing and implementing a reading program based on modified Reading Recovery programs. The student selected to be worked with made excellent gains and was the second strongest reader of all students observed in the study. Without question, the student functioned at a level equal to the middle of the class and her learning…

Roles of frequency, attitudes, and multiple intelligence modality surrounding Electricity Content-Based Reader's Theatre

NASA Astrophysics Data System (ADS)

Hosier, Julie Winchester

Integration of subjects is something elementary teachers must do to insure required objectives are covered. Science-based Reader's Theatre is one way to weave reading into science. This study examined the roles of frequency, attitudes, and Multiple Intelligence modalities surrounding Electricity Content-Based Reader's Theatre. This study used quasi-experimental, repeated measures ANOVA with time as a factor design. A convenience sample of two fifth-grade classrooms participated in the study for eighteen weeks. Five Electricity Achievement Tests were given throughout the study to assess students' growth. A Student Reader's Theatre Attitudinal Survey revealed students' attitudes before and after Electricity Content-Based Reader's Theatre treatment. The Multiple Intelligence Inventory for Kids (Faris, 2007) examined whether Multiple Intelligence modality played a role in achievement on Electricity Test 4, the post-treatment test. Analysis using repeated measures ANOVA and an independent t-test found that students in the experimental group, which practiced its student-created Electricity Content-Based Reader's Theatre skits ten times versus two times for the for control group, did significantly better on Electricity Achievement Test 4, t(76) = 3.018, p = 0.003. Dependent t-tests did not find statistically significant differences between students' attitudes about Electricity Content-Based Reader's Theatre before and after treatment. A Kruskal-Wallis test found no statistically significant difference between the various Multiple Intelligence modalities score mean ranks (x2 = 5.57, df = 2, alpha = .062). Qualitative data do, however, indicate students had strong positive feelings about Electricity Content-Based Reader's Theatre after treatment. Students indicated it to be motivating, confidence-building, and a fun way to learn about science; however, they disliked writing their own scripts. Examining the frequency, attitudes, and Multiple Intelligence modalities lead to

Reconstructing plate motion paths where plate tectonics doesn't strictly apply

NASA Astrophysics Data System (ADS)

Handy, M. R.; Ustaszewski, K.

2012-04-01

The classical approach to reconstructing plate motion invokes the assumption that plates are rigid and therefore that their motions can be described as Eulerian rotations on a spherical Earth. This essentially two-dimensional, map view of plate motion is generally valid for large-scale systems, but is not practicable for small-scale tectonic systems in which plates, or significant parts thereof, deform on time scales approaching the duration of their motion. Such "unplate-like" (non-rigid) behaviour is common in systems with a weak lithosphere, for example, in Mediterranean-type settings where (micro-)plates undergo distributed deformation several tens to hundreds of km away from their boundaries. The motion vector of such anomalous plates can be quantified by combining and comparing information from two independent sources: (1) Balanced cross sections that are arrayed across deformed zones (orogens, basins) and provide estimates of crustal shortening and/or extension. Plate motion is then derived by retrodeforming the balanced sections in a stepwise fashion from external to internal parts of mountain belts, then applying these estimates as successive retrotranslations of points on stable parts of the upper plate with respect to a chosen reference frame on the lower plate. This approach is contingent on using structural markers with tight age constraints, for example, depth-sensitive metamorphic mineral parageneses and syn-orogenic sediments with known paleogeographic provenance; (2) Geophysical images of 3D subcrustal structure, especially of the MOHO and the lithospheric mantle in the vicinity of the deformed zones. In the latter case, travel-time seismic tomography of velocity anomalies can be used to identify subducted lithospheric slabs that extend downwards from the zones of crustal shortening to the mantle transitional zone and beyond. Synthesizing information from these two sources yields plate motion paths whose validity can be tested by the degree of

Restorying Literacy: The Role of Anomaly in Shifting Perceptions of College Readers

ERIC Educational Resources Information Center

Allen, Kelly Lee

2016-01-01

College reading programs are traditionally remedial or developmental in nature and often take a decontextualized skills based approach to reading and to supporting college readers (Holschuh & Paulson, 2013). Skills oriented deficit-based approaches to reading provide deficit-based frameworks for readers to construct self-perceptions. TLS 239…

Struggling Readers and Emotional Intelligence: A Case Study of Their Program Experiences

ERIC Educational Resources Information Center

Peterson, Jennifer

2011-01-01

This study examined the question: How do struggling readers experience the Gonzaga University's Saturday Literacy Tutoring Program as viewed through the five key dimensions of emotional intelligence? Gonzaga University's Saturday Literacy Tutoring Program is designed to help struggling readers gain the specific skills and strategies they need to…

Contributions of Syntactic Awareness to Reading in Chinese-Speaking Adolescent Readers with and without Dyslexia

ERIC Educational Resources Information Center

Chung, Kevin K. H.; Ho, Connie S.-H.; Chan, David W.; Tsang, Suk-Man; Lee, Suk-Han

2013-01-01

This study investigated the relative contribution of syntactic awareness to Chinese reading among Chinese-speaking adolescent readers with and without dyslexia. A total of 78 junior high school students in Hong Kong, 26 dyslexic adolescent readers, 26 average adolescent readers of the same age (chronological age control group) and 26 younger…

GOLD PLATING PROCESS

DOEpatents

Seegmiller, R.

1957-08-01

An improved bath is reported for plating gold on other metals. The composition of the plating bath is as follows: Gold cyanide from about 15 to about 50 grams, potassium cyanide from about 70 to about 125 grams, and sulfonated castor oil from about 0.1 to about 10 cc. The gold plate produced from this bath is smooth, semi-hard, and nonporous.

Ideology, Economics and Reader Demand in Soviet Publishing

ERIC Educational Resources Information Center

Walker, G. P. M.

1978-01-01

Examines some of the important assumptions and disputes about publishing as an industry: demand and pricing; profit and subsidy; quality, effectiveness and "optimality"; and the power of the reader. (Author)

Children and Adults Both See "Pirates" in "Parties": Letter-Position Effects for Developing Readers and Skilled Adult Readers

ERIC Educational Resources Information Center

Paterson, Kevin B.; Read, Josephine; McGowan, Victoria A.; Jordan, Timothy R.

2015-01-01

Developing readers often make anagrammatical errors (e.g. misreading pirates as parties), suggesting they use letter position flexibly during word recognition. However, while it is widely assumed that the occurrence of these errors decreases with increases in reading skill, empirical evidence to support this distinction is lacking. Accordingly, we…

Reliability assessment of different plate theories for elastic wave propagation analysis in functionally graded plates.

PubMed

Mehrkash, Milad; Azhari, Mojtaba; Mirdamadi, Hamid Reza

2014-01-01

The importance of elastic wave propagation problem in plates arises from the application of ultrasonic elastic waves in non-destructive evaluation of plate-like structures. However, precise study and analysis of acoustic guided waves especially in non-homogeneous waveguides such as functionally graded plates are so complicated that exact elastodynamic methods are rarely employed in practical applications. Thus, the simple approximate plate theories have attracted much interest for the calculation of wave fields in FGM plates. Therefore, in the current research, the classical plate theory (CPT), first-order shear deformation theory (FSDT) and third-order shear deformation theory (TSDT) are used to obtain the transient responses of flexural waves in FGM plates subjected to transverse impulsive loadings. Moreover, comparing the results with those based on a well recognized hybrid numerical method (HNM), we examine the accuracy of the plate theories for several plates of various thicknesses under excitations of different frequencies. The material properties of the plate are assumed to vary across the plate thickness according to a simple power-law distribution in terms of volume fractions of constituents. In all analyses, spatial Fourier transform together with modal analysis are applied to compute displacement responses of the plates. A comparison of the results demonstrates the reliability ranges of the approximate plate theories for elastic wave propagation analysis in FGM plates. Furthermore, based on various examples, it is shown that whenever the plate theories are used within the appropriate ranges of plate thickness and frequency content, solution process in wave number-time domain based on modal analysis approach is not only sufficient but also efficient for finding the transient waveforms in FGM plates. Copyright © 2013 Elsevier B.V. All rights reserved.

Tactile spatial resolution in blind braille readers.

PubMed

Van Boven, R W; Hamilton, R H; Kauffman, T; Keenan, J P; Pascual-Leone, A

2000-06-27

To determine if blind people have heightened tactile spatial acuity. Recently, studies using magnetic source imaging and somatosensory evoked potentials have shown that the cortical representation of the reading fingers of blind Braille readers is expanded compared to that of fingers of sighted subjects. Furthermore, the visual cortex is activated during certain tactile tasks in blind subjects but not sighted subjects. The authors hypothesized that the expanded cortical representation of fingers used in Braille reading may reflect an enhanced fidelity in the neural transmission of spatial details of a stimulus. If so, the quantitative limit of spatial acuity would be superior in blind people. The authors employed a grating orientation discrimination task in which threshold performance is accounted for by the spatial resolution limits of the neural image evoked by a stimulus. The authors quantified the psychophysical limits of spatial acuity at the middle and index fingers of 15 blind Braille readers and 15 sighted control subjects. The mean grating orientation threshold was significantly (p = 0.03) lower in the blind group (1.04 mm) compared to the sighted group (1.46 mm). The self-reported dominant reading finger in blind subjects had a mean grating orientation threshold of 0.80 mm, which was significantly better than other fingers tested. Thresholds at non-Braille reading fingers in blind subjects averaged 1.12 mm, which were also superior to sighted subjects' performances. Superior tactile spatial acuity in blind Braille readers may represent an adaptive, behavioral correlate of cortical plasticity.

Developing Historical Reading and Writing with Adolescent Readers: Effects on Student Learning

ERIC Educational Resources Information Center

De La Paz, Susan; Felton, Mark; Monte-Sano, Chauncey; Croninger, Robert; Jackson, Cara; Deogracias, Jeehye Shim; Hoffman, Benjamin Polk

2014-01-01

In this study, the effects of a disciplinary reading and writing curriculum intervention with professional development are shared. We share our instructional approach and provide writing outcomes for struggling adolescent readers who read at or below basic proficiency levels, as well as writing outcomes for proficient and advanced readers.…

Reading Interest and Achievement: What Are the Implications for Male Disabled Readers?

ERIC Educational Resources Information Center

Campbell, Tim K.

A study examined the relationship between reading interest and achievement of male disabled readers. Subjects, 30 males aged 8 to 12 years and identified as disabled readers, were selected from a metropolitan school district in central Oklahoma. Subjects completed a reading interest questionnaire and a standardized reading test. The five subjects…

Literature Discussion: Encouraging Reading Interest and Comprehension in Struggling Middle School Readers

ERIC Educational Resources Information Center

Pittman, Pamela; Honchell, Barbara

2014-01-01

The purpose of this qualitative study was to explore how literature discussion affects middle school struggling readers. The focus was on 16 middle school struggling readers in a rural Title I school in the southeastern United States. Findings indicated that (a) literature discussion increased student enjoyment of reading, and (b) students…

What are the early indicators of persistent word reading difficulties among Chinese readers in elementary grades?

PubMed

Yeung, Pui-Sze; Ho, Connie Suk-Han; Chan, David Wai-Ock; Chung, Kevin Kien-Hoa

2014-05-01

To identify the indicators of persistent reading difficulties among Chinese readers in early elementary grades, the performance of three groups of Chinese children with different reading trajectories ('persistent poor word readers', 'improved poor word readers' and 'skilled word readers') in reading-related measures was analysed in a 3-year longitudinal study. The three groups were classified according to their performance in a standardized Chinese word reading test in Grade 1 and Grade 4. Results of analysis of variance and logistic regression on the reading-related measures revealed that rapid naming and syntactic skills were important indicators of early word reading difficulty. Syntactic skills and morphological awareness were possible markers of persistent reading problems. Chinese persistent poor readers did not differ significantly from skilled readers on the measures of phonological skills. Copyright © 2014 John Wiley & Sons, Ltd.

Plating To Reinforce Welded Joints

NASA Technical Reports Server (NTRS)

Otousa, J. E.

1982-01-01

Electrodeposition used to strengthen welded joints gouged, nicked, or suffered other mechanical damage. Plating cell, typically of acrylic plastic such as poly (Methylmetacrylate), is assembled around part to be plated. Areas not to be plated are masked with plater's tape. Weld area is plated in standard nickel-plating process.

The Visceral Novel Reader and Novelized Medicine in Georgian Britain.

PubMed

Class, Monika

The article introduces "the visceral novel reader" as a diachronic, context-sensitive mode of novelistic reception, in which fact and fiction overlap cognitively: the mental rehearsal of the activity of seeing, hearing, smelling, tasting, and touching while reading novels and, vice versa, the mental rehearsal of novels in the act of perceiving the real world. Located at the intersection of literature, medicine and science, "the visceral novel reader" enhances our understanding of the role that novels played in the dialectic construction of erudition in English. In Georgian Britain, reading practices became a testing ground for the professionalization of physicians, natural philosophers, and men of letters. While it was in the professionals' common interest to implement protocols that taught readers to separate body from mind, and fact from fiction, novels came to stand for "debased" (visceral) reading. Novels inverted these notions by means of medicalization (regimentation, somatization, and individuation) and contributed to the professional stratification of medicine and literature.

International study on inter-reader variability for circulating tumor cells in breast cancer.

PubMed

Ignatiadis, Michail; Riethdorf, Sabine; Bidard, François-Clement; Vaucher, Isabelle; Khazour, Mustapha; Rothé, Françoise; Metallo, Jessica; Rouas, Ghizlane; Payne, Rachel E; Coombes, Raoul; Teufel, Ingrid; Andergassen, Ulrich; Apostolaki, Stella; Politaki, Eleni; Mavroudis, Dimitris; Bessi, Silvia; Pestrin, Marta; Di Leo, Angelo; Campion, Michael; Reinholz, Monica; Perez, Edith; Piccart, Martine; Borgen, Elin; Naume, Bjorn; Jimenez, Jose; Aura, Claudia; Zorzino, Laura; Cassatella, Maria; Sandri, Maria; Mostert, Bianca; Sleijfer, Stefan; Kraan, Jaco; Janni, Wolfgang; Fehm, Tanja; Rack, Brigitte; Terstappen, Leon; Repollet, Madeline; Pierga, Jean-Yves; Miller, Craig; Sotiriou, Christos; Michiels, Stefan; Pantel, Klaus

2014-04-23

Circulating tumor cells (CTCs) have been studied in breast cancer with the CellSearch® system. Given the low CTC counts in non-metastatic breast cancer, it is important to evaluate the inter-reader agreement. CellSearch® images (N = 272) of either CTCs or white blood cells or artifacts from 109 non-metastatic (M0) and 22 metastatic (M1) breast cancer patients from reported studies were sent to 22 readers from 15 academic laboratories and 8 readers from two Veridex laboratories. Each image was scored as No CTC vs CTC HER2- vs CTC HER2+. The 8 Veridex readers were summarized to a Veridex Consensus (VC) to compare each academic reader using % agreement and kappa (κ) statistics. Agreement was compared according to disease stage and CTC counts using the Wilcoxon signed rank test. For CTC definition (No CTC vs CTC), the median agreement between academic readers and VC was 92% (range 69 to 97%) with a median κ of 0.83 (range 0.37 to 0.93). Lower agreement was observed in images from M0 (median 91%, range 70 to 96%) compared to M1 (median 98%, range 64 to 100%) patients (P < 0.001) and from M0 and <3CTCs (median 87%, range 66 to 95%) compared to M0 and ≥3CTCs samples (median 95%, range 77 to 99%), (P < 0.001). For CTC HER2 expression (HER2- vs HER2+), the median agreement was 87% (range 51 to 95%) with a median κ of 0.74 (range 0.25 to 0.90). The inter-reader agreement for CTC definition was high. Reduced agreement was observed in M0 patients with low CTC counts. Continuous training and independent image review are required.

International study on inter-reader variability for circulating tumor cells in breast cancer

PubMed Central

2014-01-01

Introduction Circulating tumor cells (CTCs) have been studied in breast cancer with the CellSearch® system. Given the low CTC counts in non-metastatic breast cancer, it is important to evaluate the inter-reader agreement. Methods CellSearch® images (N = 272) of either CTCs or white blood cells or artifacts from 109 non-metastatic (M0) and 22 metastatic (M1) breast cancer patients from reported studies were sent to 22 readers from 15 academic laboratories and 8 readers from two Veridex laboratories. Each image was scored as No CTC vs CTC HER2- vs CTC HER2+. The 8 Veridex readers were summarized to a Veridex Consensus (VC) to compare each academic reader using % agreement and kappa (κ) statistics. Agreement was compared according to disease stage and CTC counts using the Wilcoxon signed rank test. Results For CTC definition (No CTC vs CTC), the median agreement between academic readers and VC was 92% (range 69 to 97%) with a median κ of 0.83 (range 0.37 to 0.93). Lower agreement was observed in images from M0 (median 91%, range 70 to 96%) compared to M1 (median 98%, range 64 to 100%) patients (P < 0.001) and from M0 and <3CTCs (median 87%, range 66 to 95%) compared to M0 and ≥3CTCs samples (median 95%, range 77 to 99%), (P < 0.001). For CTC HER2 expression (HER2- vs HER2+), the median agreement was 87% (range 51 to 95%) with a median κ of 0.74 (range 0.25 to 0.90). Conclusions The inter-reader agreement for CTC definition was high. Reduced agreement was observed in M0 patients with low CTC counts. Continuous training and independent image review are required. PMID:24758318

Mantle convection with plates and mobile, faulted plate margins.

PubMed

Zhong, S; Gurnis, M

1995-02-10

A finite-element formulation of faults has been incorporated into time-dependent models of mantle convection with realistic rheology, continents, and phase changes. Realistic tectonic plates naturally form with self-consistent coupling between plate and mantle dynamics. After the initiation of subduction, trenches rapidly roll back with subducted slabs temporarily laid out along the base of the transition zone. After the slabs have penetrated into the lower mantle, the velocity of trench migration decreases markedly. The inhibition of slab penetration into the lower mantle by the 670-kilometer phase change is greatly reduced in these models as compared to models without tectonic plates.

Behaviour of Plate Anchorage in Plate-Reinforced Composite Coupling Beams

PubMed Central

Lam, W. Y.; Li, Lingzhi; Su, R. K. L.; Pam, H. J.

2013-01-01

As a new alternative design, plate-reinforced composite (PRC) coupling beam achieves enhanced strength and ductility by embedding a vertical steel plate into a conventionally reinforced concrete (RC) coupling beam. Based on a nonlinear finite element model developed in the authors' previous study, a parametric study presented in this paper has been carried out to investigate the influence of several key parameters on the overall performance of PRC coupling beams. The effects of steel plate geometry, span-to-depth ratio of beams, and steel reinforcement ratios at beam spans and in wall regions are quantified. It is found that the anchorage length of the steel plate is primarily controlled by the span-to-depth ratio of the beam. Based on the numerical results, a design curve is proposed for determining the anchorage length of the steel plate. The load-carrying capacity of short PRC coupling beams with high steel ratio is found to be controlled by the steel ratio of wall piers. The maximum shear stress of PRC coupling beams should be limited to 15 MPa. PMID:24288465

Economic Analysis of Anatomic Plating Versus Tubular Plating for the Treatment of Fibula Fractures.

PubMed

Chang, Gerard; Bhat, Suneel B; Raikin, Steven M; Kane, Justin M; Kay, Andrew; Ahmad, Jamal; Pedowitz, David I; Krieg, James

2018-03-01

Ankle fractures are among the most common injuries requiring operative management. Implant choices include one-third tubular plates and anatomically precontoured plates. Although cadaveric studies have not revealed biomechanical differences between various plate constructs, there are substantial cost differences. This study sought to characterize the economic implications of implant choice. A retrospective review was undertaken of 201 consecutive patients with operatively treated OTA type 44B and 44C ankles. A Nationwide Inpatient Sample query was performed to estimate the incidence of ankle fractures requiring fibular plating, and a Monte Carlo simulation was conducted with the estimated at-risk US population for associated plate-specific costs. The authors estimated an annual incidence of operatively treated ankle fractures in the United States of 59,029. The average cost was $90.86 (95% confidence interval, $90.84-$90.87) for a one-third tubular plate vs $746.97 (95% confidence interval, $746.55-$747.39) for an anatomic plate. Across the United States, use of only one-third tubular plating over anatomic plating would result in statistically significant savings of $38,729,517 (95% confidence interval, $38,704,773-$38,754,261; P<.0001). General use of one-third tubular plating instead of anatomic plating whenever possible for fibula fractures could result in cost savings of up to nearly $40 million annually in the United States. Unless clinically justifiable on a per-case basis, or until the advent of studies showing substantial clinical benefit, there currently is no reason for the increased expense from widespread use of anatomic plating for fractures amenable to one-third tubular plating. [Orthopedics. 2018; 41(2):e252-e256.]. Copyright 2018, SLACK Incorporated.

Inverse methods-based estimation of plate coupling in a plate motion model governed by mantle flow

NASA Astrophysics Data System (ADS)

Ratnaswamy, V.; Stadler, G.; Gurnis, M.

2013-12-01

Plate motion is primarily controlled by buoyancy (slab pull) which occurs at convergent plate margins where oceanic plates undergo deformation near the seismogenic zone. Yielding within subducting plates, lateral variations in viscosity, and the strength of seismic coupling between plate margins likely have an important control on plate motion. Here, we wish to infer the inter-plate coupling for different subduction zones, and develop a method for inferring it as a PDE-constrained optimization problem, where the cost functional is the misfit in plate velocities and is constrained by the nonlinear Stokes equation. The inverse models have well resolved slabs, plates, and plate margins in addition to a power law rheology with yielding in the upper mantle. Additionally, a Newton method is used to solve the nonlinear Stokes equation with viscosity bounds. We infer plate boundary strength using an inexact Gauss-Newton method with line search for backtracking. Each inverse model is applied to two simple 2-D scenarios (each with three subduction zones), one with back-arc spreading and one without. For each case we examine the sensitivity of the inversion to the amount of surface velocity used: 1) full surface velocity data and 2) surface velocity data simplified using a single scalar average (2-D equivalent to an Euler pole) for each plate. We can recover plate boundary strength in each case, even in the presence of highly nonlinear flow with extreme variations in viscosity. Additionally, we ascribe an uncertainty in each plate's velocity and perform an uncertainty quantification (UQ) through the Hessian of the misfit in plate velocities. We find that as plate boundaries become strongly coupled, the uncertainty in the inferred plate boundary strength decreases. For very weak, uncoupled subduction zones, the uncertainty of inferred plate margin strength increases since there is little sensitivity between plate margin strength and plate velocity. This result is significant

Rapid determination of trace copper in animal feed based on micro-plate colorimetric reaction and statistical partitioning correction.

PubMed

Niu, Yiming; Wang, Jiayi; Zhang, Chi; Chen, Yiqiang

2017-04-15

The objective of this study was to develop a micro-plate based colorimetric assay for rapid and high-throughput detection of copper in animal feed. Copper ion in animal feed was extracted by trichloroacetic acid solution and reduced to cuprous ion by hydroxylamine. The cuprous ion can chelate with 2,2'-bicinchoninic acid to form a Cu-BCA complex which was detected with high sensitivity by micro-plate reader at 354nm. The whole assay procedure can be completed within 20min. To eliminate matrix interference, a statistical partitioning correction approach was proposed, which makes the detection of copper in complex samples possible. The limit of detection was 0.035μg/mL and the detection range was 0.1-10μg/mL of copper in buffer solution. Actual sample analysis indicated that this colorimetric assay produced results consistent with atomic absorption spectrometry analysis. These results demonstrated that the developed assay can be used for rapid determination of copper in animal feed. Copyright © 2016 Elsevier Ltd. All rights reserved.

Early Cognitive and Linguistic Profiles of Different Types of 7- to 8-Year-Old Readers

ERIC Educational Resources Information Center

Potocki, Anna; Ecalle, Jean; Magnan, Annie

2017-01-01

The aim of this study was to investigate the early characteristics of four profiles of readers established in second grade (7-8 years of age): good readers, specific poor decoders, specific poor comprehenders and general poor readers. These profiles were compared retrospectively on a range of measures administered 2 years earlier, in kindergarten.…

Contributions of syntactic awareness to reading in Chinese-speaking adolescent readers with and without dyslexia.

PubMed

Chung, Kevin K H; Ho, Connie S-H; Chan, David W; Tsang, Suk-Man; Lee, Suk-Han

2013-02-01

This study investigated the relative contribution of syntactic awareness to Chinese reading among Chinese-speaking adolescent readers with and without dyslexia. A total of 78 junior high school students in Hong Kong, 26 dyslexic adolescent readers, 26 average adolescent readers of the same age (chronological age control group) and 26 younger readers matched with the same reading level (reading-level group) participated and were administered measures of IQ, syntactic awareness, morphological awareness, vocabulary knowledge, working memory, word reading, and reading comprehension. Results showed that dyslexic readers scored significantly lower than chronological age but similarly to reading level control groups in most measures, especially in the areas of syntactic skills. Analyses of individual data also revealed that over half of the dyslexic readers exhibited certain aspects of deficits in syntactic skills. In regression analyses, syntactic skills were the strongest predictors of ability in word reading and reading comprehension measures. This study highlights the uniquely important correlates of syntactic skills in Chinese reading acquisition and impairment. Copyright © 2013 John Wiley & Sons, Ltd.

Fibonacci-like zone plate

NASA Astrophysics Data System (ADS)

Cheng, Shubo; Liu, Mengsi; Xia, Tian; Tao, Shaohua

2018-06-01

We present a new family of diffractive lenses, Fibonacci-like zone plates, generated with a modified Fibonacci sequence. The focusing properties and the evolution of transverse diffraction pattern for the Fibonacci-like zone plates have been analytically investigated both theoretically and experimentally and compared with the corresponding Fresnel zone plates of the same resolution. The results demonstrate that the Fibonacci-like zone plates possess the self-similar property and the multifocal behavior. Furthermore, the Fibonacci-like zone plate beams are found to possess the self-reconstruction property, and would be promising for 3D optical tweezers, laser machining, and optical imaging.

"Am I a Good Reader?" a Friendly Way to Evaluate Students' Perceptions of Themselves as a Reader

ERIC Educational Resources Information Center

Wangsgard, Nichole

2014-01-01

Current reading assessments put emphasis in the five components of reading competency, neglecting the self-efficacy needs of students. When students struggle with one of or all five components of reading competency, they could have negative feelings about themselves as a reader. This article offers teachers an effective user friendly assessment…

The Effect of Task in Deaf Readers' Graphophonological Processes: A Longitudinal Study

ERIC Educational Resources Information Center

Daigle, Daniel; Berthiaume, Rachel; Demont, Elisabeth

2012-01-01

This article reports on an investigation of graphophonological processes in deaf readers of French over a 1-year period. Deaf readers are known to have a phonological deficit compared to hearing peers, and conclusions from studies on this question are often conflicting. Among the different types of phonological processing, we can identify…

Readers Are Survivors: A Middle School Student/Parent/Teacher Book Discussion Group.

ERIC Educational Resources Information Center

Breen, Margaret; Rubin, Terri

2003-01-01

Considers how the "Readers Are Survivors" program encourages students to become lifelong readers, and focuses on the value of providing families with a way to actually communicate about something other than homework, chores, and curfews. Presents a description of what has evolved over the past three years in this program. Suggests that…

Differences in Visual Analysis and Sequence Memory of Skilled and Poor Readers.

ERIC Educational Resources Information Center

Gildemeister, Joan E.; Friedman, Philip

Reading achievement tests have been used to identify deficiencies in inner city, poor readers; however, they often do not provide information about encoding strategies which lead some children to academic success. Immediate memory and visual analytic differences which contribute to the success of skilled readers are isolated in this study using 20…

Catalogue Use by the Petherick Readers of the National Library of Australia

ERIC Educational Resources Information Center

Hider, Philip

2007-01-01

An online questionnaire survey was distributed amongst the Petherick Readers of the National Library of Australia, a user group of scholars and researchers. The survey asked questions about the readers' use and appreciation of the NLA catalogue. This group of users clearly appreciated the library catalogue and demonstrated that there are still…

Plate on plate osteosynthesis for the treatment of nonhealed periplate fractures.

PubMed

Arealis, Georgios; Nikolaou, Vassilios S; Lacon, Andrew; Ashwood, Neil; Hamlet, Mark

2014-01-01

Purpose. The purpose of this paper is to present our technique for the treatment of periplate fractures. Methods. From 2009 to 2012 we treated three patients. In all cases the existing plate was left and the new one placed over the existing. Locking screws were placed through both plates. The other screws in the new plate were used as best suited the fracture. Results. In all cases less than 6 months had passed between fractures. None of the original fractures had healed. Mean followup was 2 years. All fractures proceeded to union within 7 months. No complications were recorded. All the patients returned to their normal activities and were satisfied with the results of their treatment. Conclusion. Our plate on plate technique is effective for the treatment of periplate fractures. A solid fusion can be achieved at the new fracture site without disturbing the previous fixation.

Could We Make Diverse Learning Materials Compatible with E-Readers Used in Classroom Learning Settings?

ERIC Educational Resources Information Center

Young, Shelley Shwu-Ching; Lin, Wei-Lin

2012-01-01

This study explores how to make diverse learning/instructional materials compatible with e-readers when the instructor pioneered to adopt e-readers into a course of the graduate level. What problems did the instructor encounter when she used the e-readers as a major tool to deliver learning contents, such as the process of converting the…

Cadmium plating replacements

NASA Technical Reports Server (NTRS)

Nelson, Mary J.; Groshart, Earl C.

1995-01-01

The Boeing Company has been searching for replacements to cadmium plate. Two alloy plating systems seem close to meeting the needs of a cadmium replacement. The two alloys, zinc-nickel and tin-zinc are from alloy plating baths; both baths are neutral pH. The alloys meet the requirements for salt fog corrosion resistance, and both alloys excel as a paint base. Currently, tests are being performed on standard fasteners to compare zinc-nickel and tin-zinc on threaded hardware where cadmium is heavily used. The Hydrogen embrittlement propensity of the zinc-nickel bath has been tested, and just beginning for the tin-zinc bath. Another area of interest is the electrical properties on aluminum for tin-zinc and will be discussed. The zinc-nickel alloy plating bath is in production in Boeing Commercial Airplane Group for non-critical low strength steels. The outlook is promising that these two coatings will help The Boeing Company significantly reduce its dependence on cadmium plating.

History of internal fixation with plates (part 2): new developments after World War II; compressing plates and locked plates.

PubMed

Hernigou, Philippe; Pariat, Jacques

2017-07-01

The first techniques of operative fracture with plates were developed in the 19th century. In fact, at the beginning these methods consisted of an open reduction of the fracture usually followed by a very unstable fixation. As a consequence, the fracture had to be opened with a real risk of (sometimes lethal) infection, and due to unstable fixation, protection with a cast was often necessary. During the period between World Wars I and II, plates for fracture fixation developed with great variety. It became increasingly recognised that, because a fracture of a long bone normally heals with minimal resorption at the bone ends, this may result in slight shortening and collapse, so a very rigid plate might prevent such collapse. However, as a consequence, delayed healing was observed unless the patient was lucky enough to have the plate break. One way of dealing with this was to use a slotted plate in which the screws could move axially, but the really important advance was recognition of the role of compression. After the first description of compression by Danis with a "coapteur", Bagby and Müller with the AO improved the technique of compression. The classic dynamic compression plates from the 1970s were the key to a very rigid fixation, leading to primary bone healing. Nevertheless, the use of strong plates resulted in delayed union and the osteoporosis, cancellous bone, comminution, and/or pathological bone resulted in some failures due to insufficient stability. Finally, new devices represented by locking plates increased the stability, contributing to the principles of a more biological osteosynthesis while giving enough stability to allow immediate full weight bearing in some patients.

The Jossey-Bass Reader on Educational Leadership.

ERIC Educational Resources Information Center

2000

This comprehensive reader features 24 chapters in 5 primary areas of educational research. Part One, "Leadership, Management, and Organizational Behavior," demonstrates that leadership has a strong conceptual basis that is basic in all human situations. It contains 6 articles: "The Nature of Leadership" (J. Gardner); "Give…

A Portrait of Parents of Successful Readers.

ERIC Educational Resources Information Center

Spiegel, Dixie Lee

Reviews of research, studies of early readers, and investigations of emergent literacy uniformly conclude that parents' beliefs, aspirations, and actions affect their children's growth into and embracing of literacy. However, conflicting results call into question the utility of simply correlating race or various socioeconomic factors, such as…

Difficulty in detecting discrepancies in a clinical trial report: 260-reader evaluation

PubMed Central

Cole, Graham D; Shun-Shin, Matthew J; Nowbar, Alexandra N; Buell, Kevin G; Al-Mayahi, Faisal; Zargaran, David; Mahmood, Saliha; Singh, Bharpoor; Mielewczik, Michael; Francis, Darrel P

2015-01-01

Background: Scientific literature can contain errors. Discrepancies, defined as two or more statements or results that cannot both be true, may be a signal of problems with a trial report. In this study, we report how many discrepancies are detected by a large panel of readers examining a trial report containing a large number of discrepancies. Methods: We approached a convenience sample of 343 journal readers in seven countries, and invited them in person to participate in a study. They were asked to examine the tables and figures of one published article for discrepancies. 260 participants agreed, ranging from medical students to professors. The discrepancies they identified were tabulated and counted. There were 39 different discrepancies identified. We evaluated the probability of discrepancy identification, and whether more time spent or greater participant experience as academic authors improved the ability to detect discrepancies. Results: Overall, 95.3% of discrepancies were missed. Most participants (62%) were unable to find any discrepancies. Only 11.5% noticed more than 10% of the discrepancies. More discrepancies were noted by participants who spent more time on the task (Spearman’s ρ = 0.22, P < 0.01), and those with more experience of publishing papers (Spearman’s ρ = 0.13 with number of publications, P = 0.04). Conclusions: Noticing discrepancies is difficult. Most readers miss most discrepancies even when asked specifically to look for them. The probability of a discrepancy evading an individual sensitized reader is 95%, making it important that, when problems are identified after publication, readers are able to communicate with each other. When made aware of discrepancies, the majority of readers support editorial action to correct the scientific record. PMID:26174517

E-Readers on Trial: Qualitative Results from an Academic Library Pilot Project

ERIC Educational Resources Information Center

Kemp, Jan; Lutz, Ellen; Nurnberger, Amy L.

2012-01-01

In 2010, the University of Texas at San Antonio Libraries opened a bookless satellite library, the Applied Engineering and Technology (AET) Library. AET librarians wanted to offer a new service: lending e-readers loaded with academic content and other e-books of interest to engineering and science students. Librarians chose three e-readers for the…

Mathematics skills in good readers with hydrocephalus.

PubMed

Barnes, Marcia A; Pengelly, Sarah; Dennis, Maureen; Wilkinson, Margaret; Rogers, Tracey; Faulkner, Heather

2002-01-01

Children with hydrocephalus have poor math skills. We investigated the nature of their arithmetic computation errors by comparing written subtraction errors in good readers with hydrocephalus, typically developing good readers of the same age, and younger children matched for math level to the children with hydrocephalus. Children with hydrocephalus made more procedural errors (although not more fact retrieval or visual-spatial errors) than age-matched controls; they made the same number of procedural errors as younger, math-level matched children. We also investigated a broad range of math abilities, and found that children with hydrocephalus performed more poorly than age-matched controls on tests of geometry and applied math skills such as estimation and problem solving. Computation deficits in children with hydrocephalus reflect delayed development of procedural knowledge. Problems in specific math domains such as geometry and applied math, were associated with deficits in constituent cognitive skills such as visual spatial competence, memory, and general knowledge.

An MILP-based cross-layer optimization for a multi-reader arbitration in the UHF RFID system.

PubMed

Choi, Jinchul; Lee, Chaewoo

2011-01-01

In RFID systems, the performance of each reader such as interrogation range and tag recognition rate may suffer from interferences from other readers. Since the reader interference can be mitigated by output signal power control, spectral and/or temporal separation among readers, the system performance depends on how to adapt the various reader arbitration metrics such as time, frequency, and output power to the system environment. However, complexity and difficulty of the optimization problem increase with respect to the variety of the arbitration metrics. Thus, most proposals in previous study have been suggested to primarily prevent the reader collision with consideration of one or two arbitration metrics. In this paper, we propose a novel cross-layer optimization design based on the concept of combining time division, frequency division, and power control not only to solve the reader interference problem, but also to achieve the multiple objectives such as minimum interrogation delay, maximum reader utilization, and energy efficiency. Based on the priority of the multiple objectives, our cross-layer design optimizes the system sequentially by means of the mixed-integer linear programming. In spite of the multi-stage optimization, the optimization design is formulated as a concise single mathematical form by properly assigning a weight to each objective. Numerical results demonstrate the effectiveness of the proposed optimization design.

An MILP-Based Cross-Layer Optimization for a Multi-Reader Arbitration in the UHF RFID System

PubMed Central

Choi, Jinchul; Lee, Chaewoo

2011-01-01

In RFID systems, the performance of each reader such as interrogation range and tag recognition rate may suffer from interferences from other readers. Since the reader interference can be mitigated by output signal power control, spectral and/or temporal separation among readers, the system performance depends on how to adapt the various reader arbitration metrics such as time, frequency, and output power to the system environment. However, complexity and difficulty of the optimization problem increase with respect to the variety of the arbitration metrics. Thus, most proposals in previous study have been suggested to primarily prevent the reader collision with consideration of one or two arbitration metrics. In this paper, we propose a novel cross-layer optimization design based on the concept of combining time division, frequency division, and power control not only to solve the reader interference problem, but also to achieve the multiple objectives such as minimum interrogation delay, maximum reader utilization, and energy efficiency. Based on the priority of the multiple objectives, our cross-layer design optimizes the system sequentially by means of the mixed-integer linear programming. In spite of the multi-stage optimization, the optimization design is formulated as a concise single mathematical form by properly assigning a weight to each objective. Numerical results demonstrate the effectiveness of the proposed optimization design. PMID:22163743

Nuclear reactor alignment plate configuration

DOEpatents

Altman, David A; Forsyth, David R; Smith, Richard E; Singleton, Norman R

2014-01-28

An alignment plate that is attached to a core barrel of a pressurized water reactor and fits within slots within a top plate of a lower core shroud and upper core plate to maintain lateral alignment of the reactor internals. The alignment plate is connected to the core barrel through two vertically-spaced dowel pins that extend from the outside surface of the core barrel through a reinforcement pad and into corresponding holes in the alignment plate. Additionally, threaded fasteners are inserted around the perimeter of the reinforcement pad and into the alignment plate to further secure the alignment plate to the core barrel. A fillet weld also is deposited around the perimeter of the reinforcement pad. To accomodate thermal growth between the alignment plate and the core barrel, a gap is left above, below and at both sides of one of the dowel pins in the alignment plate holes through with the dowel pins pass.

An improved plating process

NASA Technical Reports Server (NTRS)

Askew, John C.

1994-01-01

An alternative to the immersion process for the electrodeposition of chromium from aqueous solutions on the inside diameter (ID) of long tubes is described. The Vessel Plating Process eliminates the need for deep processing tanks, large volumes of solutions, and associated safety and environmental concerns. Vessel Plating allows the process to be monitored and controlled by computer thus increasing reliability, flexibility and quality. Elimination of the trivalent chromium accumulation normally associated with ID plating is intrinsic to the Vessel Plating Process. The construction and operation of a prototype Vessel Plating Facility with emphasis on materials of construction, engineered and operational safety and a unique system for rinse water recovery are described.

Mapping the reading circuitry for skilled deaf readers: an fMRI study of semantic and phonological processing.

PubMed

Emmorey, Karen; Weisberg, Jill; McCullough, Stephen; Petrich, Jennifer A F

2013-08-01

We examined word-level reading circuits in skilled deaf readers whose primary language is American Sign Language, and hearing readers matched for reading ability (college level). During fMRI scanning, participants performed a semantic decision (concrete concept?), a phonological decision (two syllables?), and a false-font control task (string underlined?). The groups performed equally well on the semantic task, but hearing readers performed better on the phonological task. Semantic processing engaged similar left frontotemporal language circuits in deaf and hearing readers. However, phonological processing elicited increased neural activity in deaf, relative to hearing readers, in the left precentral gyrus, suggesting greater reliance on articulatory phonological codes, and in bilateral parietal cortex, suggesting increased phonological processing effort. Deaf readers also showed stronger anterior-posterior functional segregation between semantic and phonological processes in left inferior prefrontal cortex. Finally, weaker phonological decoding ability did not alter activation in the visual word form area for deaf readers. Copyright © 2013 Elsevier Inc. All rights reserved.

Portable Plating System

NASA Technical Reports Server (NTRS)

Flores, R.

1984-01-01

Plating system mounted on portable cart includes 30-gallon (23.5 liter) electrolyte tank, filler pump, heaters, replenishing anodes, plating rectifiers and tank rectifier to continously remove contaminants.

The Importance of Lower Mantle Structure to Plate Stresses and Plate Motions

NASA Astrophysics Data System (ADS)

Holt, W. E.; Wang, X.; Ghosh, A.

2016-12-01

Plate motions and plate stresses are widely assumed as the surface expression of mantle convection. The generation of plate tectonics from mantle convection has been studied for many years. Lithospheric thickening (or ridge push) and slab pull forces are commonly accepted as the major driving forces for the plate motions. However, the importance of the lower mantle to plate stresses and plate motions remains less clear. Here, we use the joint modeling of lithosphere and mantle dynamics approach of Wang et al. (2015) to compute the tractions originating from deeper mantle convection and follow the method of Ghosh et al. (2013) to calculate gravitational potential energy per unit area (GPE) based on Crust 1.0 (Laske et al., 2013). Absolute values of deviatoric stresses are determined by the body force distributions (GPE gradients and traction magnitudes applied at the base of the lithosphere). We use the same relative viscosity model that Ghosh et al. (2013) used, and we solve for one single adjustable scaling factor that multiplies the entire relative viscosity field to provide absolute values of viscosity throughout the lithosphere. This distribution of absolute values of lithosphere viscosities defines the magnitudes of surface motions. In this procedure, the dynamic model first satisfies the internal constraint of no-net-rotation of motions. The model viscosity field is then scaled by the single factor until we achieve a root mean square (RMS) minimum between computed surface motions and the kinematic no-net-rotation (NNR) model of Kreemer et al. (2006). We compute plate stresses and plate motions from recently published global tomography models (over 70 based on Wang et al., 2015). We find that RMS misfits are significantly reduced when details of lower mantle structure from the latest tomography models are added to models that contain only upper and mid-mantle density distributions. One of the key reasons is that active upwelling from the Large Low Shear

Reading Difficulties in Adult Deaf Readers of French: Phonological Codes, Not Guilty!

ERIC Educational Resources Information Center

Belanger, Nathalie N.; Baum, Shari R.; Mayberry, Rachel I.

2012-01-01

Deaf people often achieve low levels of reading skills. The hypothesis that the use of phonological codes is associated with good reading skills in deaf readers is not yet fully supported in the literature. We investigated skilled and less skilled adult deaf readers' use of orthographic and phonological codes in reading. Experiment 1 used a masked…

Cache directory lookup reader set encoding for partial cache line speculation support

DOEpatents

Gara, Alan; Ohmacht, Martin

2014-10-21

In a multiprocessor system, with conflict checking implemented in a directory lookup of a shared cache memory, a reader set encoding permits dynamic recordation of read accesses. The reader set encoding includes an indication of a portion of a line read, for instance by indicating boundaries of read accesses. Different encodings may apply to different types of speculative execution.

Optical benchmarking of security document readers for automated border control

NASA Astrophysics Data System (ADS)

Valentín, Kristián.; Wild, Peter; Å tolc, Svorad; Daubner, Franz; Clabian, Markus

2016-10-01

Authentication and optical verification of travel documents upon crossing borders is of utmost importance for national security. Understanding the workflow and different approaches to ICAO 9303 travel document scanning in passport readers, as well as highlighting normalization issues and designing new methods to achieve better harmonization across inspection devices are key steps for the development of more effective and efficient next- generation passport inspection. This paper presents a survey of state-of-the-art document inspection systems, showcasing results of a document reader challenge investigating 9 devices with regards to optical characteristics.

Shakespeare and Reader's Theatre: Fellow Traveling Companions

ERIC Educational Resources Information Center

Ratliff, Gerald Lee

2010-01-01

Whether constructed on literary analysis models or inspired by conventional acting theories, Reader's Theatre performance techniques are an invaluable instructional tool available to teachers who want their students to see, hear and feel Shakespeare texts in classroom discussion and performance. These exercises are designed to promote both a…

Lexical Reading in Dysfluent Readers of German

ERIC Educational Resources Information Center

Gangl, Melanie; Moll, Kristina; Jones, Manon W.; Banfi, Chiara; Schulte-Körne, Gerd; Landerl, Karin

2018-01-01

Dyslexia in consistent orthographies like German is characterized by dysfluent reading, which is often assumed to result from failure to build up an orthographic lexicon and overreliance on decoding. However, earlier evidence indicates effects of lexical processing at least in some German dyslexic readers. We investigated variations in reading…

Trade Related Reading Packets for Disabled Readers.

ERIC Educational Resources Information Center

Davis, Beverly; Woodruff, Nancy S.

Six trade-related reading packets for disabled readers are provided for these trades: assemblers, baking, building maintenance, data entry, interior landscaping, and warehousing. Each packet stresses from 9 to 14 skills. Those skills common to most packets include context clues, fact or opinion, details, following directions, main idea,…

Multi-Reader ROC studies with Split-Plot Designs: A Comparison of Statistical Methods

PubMed Central

Obuchowski, Nancy A.; Gallas, Brandon D.; Hillis, Stephen L.

2012-01-01

Rationale and Objectives Multi-reader imaging trials often use a factorial design, where study patients undergo testing with all imaging modalities and readers interpret the results of all tests for all patients. A drawback of the design is the large number of interpretations required of each reader. Split-plot designs have been proposed as an alternative, in which one or a subset of readers interprets all images of a sample of patients, while other readers interpret the images of other samples of patients. In this paper we compare three methods of analysis for the split-plot design. Materials and Methods Three statistical methods are presented: Obuchowski-Rockette method modified for the split-plot design, a newly proposed marginal-mean ANOVA approach, and an extension of the three-sample U-statistic method. A simulation study using the Roe-Metz model was performed to compare the type I error rate, power and confidence interval coverage of the three test statistics. Results The type I error rates for all three methods are close to the nominal level but tend to be slightly conservative. The statistical power is nearly identical for the three methods. The coverage of 95% CIs fall close to the nominal coverage for small and large sample sizes. Conclusions The split-plot MRMC study design can be statistically efficient compared with the factorial design, reducing the number of interpretations required per reader. Three methods of analysis, shown to have nominal type I error rate, similar power, and nominal CI coverage, are available for this study design. PMID:23122570

Orthographic and phonological preview benefits: parafoveal processing in skilled and less-skilled deaf readers.

PubMed

Bélanger, Nathalie N; Mayberry, Rachel I; Rayner, Keith

2013-01-01

Many deaf individuals do not develop the high-level reading skills that will allow them to fully take part into society. To attempt to explain this widespread difficulty in the deaf population, much research has honed in on the use of phonological codes during reading. The hypothesis that the use of phonological codes is associated with good reading skills in deaf readers, though not well supported, still lingers in the literature. We investigated skilled and less-skilled adult deaf readers' processing of orthographic and phonological codes in parafoveal vision during reading by monitoring their eye movements and using the boundary paradigm. Orthographic preview benefits were found in early measures of reading for skilled hearing, skilled deaf, and less-skilled deaf readers, but only skilled hearing readers processed phonological codes in parafoveal vision. Crucially, skilled and less-skilled deaf readers showed a very similar pattern of preview benefits during reading. These results support the notion that reading difficulties in deaf adults are not linked to their failure to activate phonological codes during reading.

Fuel cell end plate structure

DOEpatents

Guthrie, Robin J.; Katz, Murray; Schroll, Craig R.

1991-04-23

The end plates (16) of a fuel cell stack (12) are formed of a thin membrane. Pressure plates (20) exert compressive load through insulation layers (22, 26) to the membrane. Electrical contact between the end plates (16) and electrodes (50, 58) is maintained without deleterious making and breaking of electrical contacts during thermal transients. The thin end plate (16) under compressive load will not distort with a temperature difference across its thickness. Pressure plate (20) experiences a low thermal transient because it is insulated from the cell. The impact on the end plate of any slight deflection created in the pressure plate by temperature difference is minimized by the resilient pressure pad, in the form of insulation, therebetween.

Mechanical stress in plates for bridging reconstruction mandibular defects and purposes of double plate reinforcement.

PubMed

Hoefert, Sebastian; Taier, Roberto

2018-05-01

To evaluate the biomechanical performance of a commercially available bridging plate (2.4) as well as screws and bone simulating the reconstruction of hemimandibular defects and to indicate alternatives of reinforcement to prevent plate fractures either by strength or fatigue. Two common hemimandibular defects are investigated using computed finite element analysis (FEA) approach. Simplified and refined computational models are developed for the geometry of the screw. Conditions of non-locking and locking plate-screw interfaces are considered. Static loads of 120 N are applied. Von Mises stresses and fatigue are calculated. As reinforcement, a second complete or partial plate is placed onto the original plate. Results demonstrate that reconstruction plates are often subjected to excessive stress that may lead to fracture either by strength or by fatigue. An attached complete or partial second plate is able to reduce stress in the plate, in screws and bone so that stress remains below the allowable limit of the materials. A simplified technique of attaching a whole or sectioned second plate onto the original plate can reduce the stress calculated and may reduce the frequency of plate fractures for the patient's comfort, security and financial savings. Copyright © 2018 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

CT Colonography with Computer-aided Detection: Recognizing the Causes of False-Positive Reader Results

PubMed Central

Dachman, Abraham H.; Wroblewski, Kristen; Vannier, Michael W.; Horne, John M.

2014-01-01

Computed tomography (CT) colonography is a screening modality used to detect colonic polyps before they progress to colorectal cancer. Computer-aided detection (CAD) is designed to decrease errors of detection by finding and displaying polyp candidates for evaluation by the reader. CT colonography CAD false-positive results are common and have numerous causes. The relative frequency of CAD false-positive results and their effect on reader performance on the basis of a 19-reader, 100-case trial shows that the vast majority of CAD false-positive results were dismissed by readers. Many CAD false-positive results are easily disregarded, including those that result from coarse mucosa, reconstruction, peristalsis, motion, streak artifacts, diverticulum, rectal tubes, and lipomas. CAD false-positive results caused by haustral folds, extracolonic candidates, diminutive lesions (<6 mm), anal papillae, internal hemorrhoids, varices, extrinsic compression, and flexural pseudotumors are almost always recognized and disregarded. The ileocecal valve and tagged stool are common sources of CAD false-positive results associated with reader false-positive results. Nondismissable CAD soft-tissue polyp candidates larger than 6 mm are another common cause of reader false-positive results that may lead to further evaluation with follow-up CT colonography or optical colonoscopy. Strategies for correctly evaluating CAD polyp candidates are important to avoid pitfalls from common sources of CAD false-positive results. ©RSNA, 2014 PMID:25384290

Different Orthographies Different Context Effects: The Effects of Arabic Sentence Context in Skilled and Poor Readers.

ERIC Educational Resources Information Center

Rabia, Salim Abu; Siegel, Linda S.

1995-01-01

Investigates whether Arabic orthography differs from an alphabetic orthography regarding context effects among poor and skilled readers. Finds that skilled as well as poor readers significantly improved their reading accuracy when they read voweled and unvoweled words in context and that skilled readers significantly improved their reading voweled…

Fuel cell cooler-humidifier plate

DOEpatents

Vitale, Nicholas G.; Jones, Daniel O.

2000-01-01

A cooler-humidifier plate for use in a proton exchange membrane (PEM) fuel cell stack assembly is provided. The cooler-humidifier plate combines functions of cooling and humidification within the fuel cell stack assembly, thereby providing a more compact structure, simpler manifolding, and reduced reject heat from the fuel cell. Coolant on the cooler side of the plate removes heat generated within the fuel cell assembly. Heat is also removed by the humidifier side of the plate for use in evaporating the humidification water. On the humidifier side of the plate, evaporating water humidifies reactant gas flowing over a moistened wick. After exiting the humidifier side of the plate, humidified reactant gas provides needed moisture to the proton exchange membranes used in the fuel cell stack assembly. The invention also provides a fuel cell plate that maximizes structural support within the fuel cell by ensuring that the ribs that form the boundaries of channels on one side of the plate have ends at locations that substantially correspond to the locations of ribs on the opposite side of the plate.

Featured Article: Genotation: Actionable knowledge for the scientific reader

PubMed Central

Willis, Ethan; Sakauye, Mark; Jose, Rony; Chen, Hao; Davis, Robert L

2016-01-01

We present an article viewer application that allows a scientific reader to easily discover and share knowledge by linking genomics-related concepts to knowledge of disparate biomedical databases. High-throughput data streams generated by technical advancements have contributed to scientific knowledge discovery at an unprecedented rate. Biomedical Informaticists have created a diverse set of databases to store and retrieve the discovered knowledge. The diversity and abundance of such resources present biomedical researchers a challenge with knowledge discovery. These challenges highlight a need for a better informatics solution. We use a text mining algorithm, Genomine, to identify gene symbols from the text of a journal article. The identified symbols are supplemented with information from the GenoDB knowledgebase. Self-updating GenoDB contains information from NCBI Gene, Clinvar, Medgen, dbSNP, KEGG, PharmGKB, Uniprot, and Hugo Gene databases. The journal viewer is a web application accessible via a web browser. The features described herein are accessible on www.genotation.org. The Genomine algorithm identifies gene symbols with an accuracy shown by .65 F-Score. GenoDB currently contains information regarding 59,905 gene symbols, 5633 drug–gene relationships, 5981 gene–disease relationships, and 713 pathways. This application provides scientific readers with actionable knowledge related to concepts of a manuscript. The reader will be able to save and share supplements to be visualized in a graphical manner. This provides convenient access to details of complex biological phenomena, enabling biomedical researchers to generate novel hypothesis to further our knowledge in human health. This manuscript presents a novel application that integrates genomic, proteomic, and pharmacogenomic information to supplement content of a biomedical manuscript and enable readers to automatically discover actionable knowledge. PMID:26900164

Featured Article: Genotation: Actionable knowledge for the scientific reader.

PubMed

Nagahawatte, Panduka; Willis, Ethan; Sakauye, Mark; Jose, Rony; Chen, Hao; Davis, Robert L

2016-06-01

We present an article viewer application that allows a scientific reader to easily discover and share knowledge by linking genomics-related concepts to knowledge of disparate biomedical databases. High-throughput data streams generated by technical advancements have contributed to scientific knowledge discovery at an unprecedented rate. Biomedical Informaticists have created a diverse set of databases to store and retrieve the discovered knowledge. The diversity and abundance of such resources present biomedical researchers a challenge with knowledge discovery. These challenges highlight a need for a better informatics solution. We use a text mining algorithm, Genomine, to identify gene symbols from the text of a journal article. The identified symbols are supplemented with information from the GenoDB knowledgebase. Self-updating GenoDB contains information from NCBI Gene, Clinvar, Medgen, dbSNP, KEGG, PharmGKB, Uniprot, and Hugo Gene databases. The journal viewer is a web application accessible via a web browser. The features described herein are accessible on www.genotation.org The Genomine algorithm identifies gene symbols with an accuracy shown by .65 F-Score. GenoDB currently contains information regarding 59,905 gene symbols, 5633 drug-gene relationships, 5981 gene-disease relationships, and 713 pathways. This application provides scientific readers with actionable knowledge related to concepts of a manuscript. The reader will be able to save and share supplements to be visualized in a graphical manner. This provides convenient access to details of complex biological phenomena, enabling biomedical researchers to generate novel hypothesis to further our knowledge in human health. This manuscript presents a novel application that integrates genomic, proteomic, and pharmacogenomic information to supplement content of a biomedical manuscript and enable readers to automatically discover actionable knowledge. © 2016 by the Society for Experimental Biology and

The Emergent Reader's Working Kit of Stereotypes

ERIC Educational Resources Information Center

Mackey, Margaret

2013-01-01

This article draws on a careful study of series fiction read in the 1950s to explore how stereotypes feature in the development of a young reader's competence in learning to process stories in print. Five categories of stereotype are teased out: "embodied stereotypes," understood through physical experience; "working stereotypes," discerned…

Readerly and Writerly "Letters from the Park."

ERIC Educational Resources Information Center

Conde, Susana

1993-01-01

Discusses in depth the film "Cartas del parque" ("Letters from the Park"), the first of six films in the "Amores Dificiles" series. Notes that the film is pervaded by the traditional overdetermination of gender roles. Suggests that an intrusive and authoritative narrator makes of this both a "readerly" and a…

Satisfying the Needs of the Serious Reader.

ERIC Educational Resources Information Center

Hopkins, Richard

1987-01-01

An examination of how well the Canadian public library is meeting the needs of the serious reader interested in self education, as compared to new and secondhand book stores and academic libraries, found that the public library is the most important and effective agency in providing materials for this group. (CLB)

Prologue: Becoming "Becoming a Nation of Readers"

ERIC Educational Resources Information Center

Wilkinson, Ian A. G.; Scott, Judith A.; Hiebert, Elfrieda H.; Anderson, Richard C.

2016-01-01

In this foreword to the special issue of the "Journal of Education" celebrating the 30th anniversary of the publication of "Becoming a Nation of Readers: The Report of the Commission on Reading" ("BNR") (Anderson, Hiebert, Scott, & Wilkinson, 1985), we share the backstory of the making of "BNR." We view…

Development of Comprehension Monitoring in Beginner Readers

ERIC Educational Resources Information Center

Yeomans-Maldonado, Gloria

2017-01-01

The current study was designed to understand the development of comprehension monitoring among beginner readers from first to third grade, and to determine the extent to which first graders' comprehension monitoring predicts reading comprehension in grade three. Participants were 113 children (57% female) from four US states who were followed from…

Meeting the Needs of Struggling Adolescent Readers

ERIC Educational Resources Information Center

Stover, Katie; O'Rear, Allison; Morris, Carolyn

2015-01-01

Research suggests that additional reading instruction is necessary to support struggling adolescent readers. In addition to time allocated for reading and access to appropriately leveled texts, many students need teacher support in learning and implementing a range of reading strategies. As a high school English teacher and a middle school Social…

Reflections on Teaching Struggling Middle School Readers.

ERIC Educational Resources Information Center

Ivey, Gay

1999-01-01

Shares four working generalizations on what it takes for middle school students with persistent reading difficulties to become successful readers: (1) access to materials that span the gamut of interests and difficulty levels; (2) opportunities to share reading experiences with teachers and classmates; (3) real purposes for reading; and (4)…

Women and Girls in Readers and Texts.

ERIC Educational Resources Information Center

Chevat, Edith S.

The prevalence of sex role stereotyping in school readers, textbooks, workbooks, and reading materials used from kindergarten through college must first be recognized by students and teachers as well as by authors, illustrators, and publishers. Teachers should then work to foster environments and experiences in which females and males are equally…

Readers Response Approach to English Poetry Teaching.

ERIC Educational Resources Information Center

Lin, Antonia Hsiu-Chen; Sher, Teresa Hsiang-Jen

This paper describes an elective course at Taiwan's Wen Tzao Ursuline College of Modern Languages, "Concise English Poetry Appreciation and Recitation." The course is based on the reader response approach and targets third year students, leading them into the world of poetry through various stages (traditional nursery rhymes and simple,…

Understanding Deaf Readers: An Interpretative Phenomenological Analysis

ERIC Educational Resources Information Center

Kelstone, Aaron Weir

2013-01-01

The development of reading skills, beyond a functional level, is difficult for most deaf readers. Standardized testing demonstrates a median 4th grade reading level that remains consistent even after national norming of the Stanford Achievement test on the population of deaf school children. Deaf education continues to generate various educational…

After-School Literacy Engagements with Struggling Readers

ERIC Educational Resources Information Center

Piazza, Susan V.; Duncan, Lonnie E.

2012-01-01

Parental incarceration, poverty, urban violence, and drug use can be underlying factors of academic achievement gaps between Black urban males and their counterparts. These risk factors have the potential to position low-income urban students as struggling readers. Two qualitative case studies obtained from a larger mixed methods study illustrate…

Reader Training for the Restaging of Biochemically Recurrent Prostate Cancer Using 18F-Fluciclovine PET/CT.

PubMed

Miller, Matthew P; Kostakoglu, Lale; Pryma, Daniel; Yu, Jian Qin; Chau, Albert; Perlman, Eric; Clarke, Bonnie; Rosen, Donald; Ward, Penelope

2017-10-01

18 F-Fluciclovine is a novel PET/CT tracer. This blinded image evaluation (BIE) sought to demonstrate that, after limited training, readers naïve to 18 F-fluciclovine could interpret 18 F-fluciclovine images from subjects with biochemically recurrent prostate cancer with acceptable diagnostic performance and reproducibility. The primary objectives were to establish individual readers' diagnostic performance and the overall interpretation (2/3 reader concordance) compared with standard-of-truth data (histopathology or clinical follow-up) and to evaluate interreader reproducibility. Secondary objectives included comparison to the expert reader and assessment of intrareader reproducibility. Methods: 18 F-Fluciclovine PET/CT images ( n = 121) and corresponding standard-of-truth data were collected from 110 subjects at Emory University using a single-time-point static acquisition starting 5 min after injection of approximately 370 MBq of 18 F-fluciclovine. Three readers were trained using standardized interpretation methodology and subsequently evaluated the images in a blinded manner. Analyses were conducted at the lesion, region (prostate, including bed and seminal vesicle, or extraprostatic, including all lymph nodes, bone, or soft-tissue metastasis), and subject level. Results: Lesion-level overall positive predictive value was 70.5%. The readers' positive predictive value and negative predictive value were broadly consistent with each other and with the onsite read. Sensitivity was highest for readers 1 and 2 (68.5% and 63.9%, respectively) whereas specificity was highest for reader 3 (83.6%). Overall, prostate-level sensitivity was high (91.4%), but specificity was moderate (48.7%). Interreader agreement was 94.7%, 74.4%, and 70.3% for the lesion, prostate, and extraprostatic levels, respectively, with associated Fleiss' κ-values of 0.54, 0.50, and 0.57. Intrareader agreement was 97.8%, 96.9%, and 99.1% at the lesion level; 100%, 100%, and 91.7% in the prostate

The Effect of Technology-Based Altered Readability Levels on Struggling Readers' Science Comprehension

ERIC Educational Resources Information Center

Marino, Matthew T.; Coyne, Michael; Dunn, Michael

2010-01-01

This article reports findings from a study examining how altered readability levels affected struggling readers' (N = 288) comprehension of scientific concepts and vocabulary. Specifically, the researchers were interested in learning what effect altered readability levels have when low ability readers participate in a technology-based science…

Reader Response in Secondary Settings: Increasing Comprehension through Meaningful Interactions with Literary Texts

ERIC Educational Resources Information Center

Woodruff, Amanda H.; Griffin, Robert A.

2017-01-01

A fresh look at the reader response theory to enhance student comprehension through meaningful interactions with literature, this paper explores the instructional implications of a reader response approach in secondary classrooms and examines its role in fostering students' critical reading and thinking skills. The approach promotes transaction…

Variable Distance Angular Symbology Reader

NASA Technical Reports Server (NTRS)

Schramm, Harry F., Jr. (Inventor); Corder, Eric L. (Inventor)

2006-01-01

A variable distance angular symbology, reader utilizes at least one light source to direct light through a beam splitter and onto a target. A target may be angled relative to the impinging light beam up to and maybe even greater than 45deg. A reflected beam from the target passes through the beam splitter and is preferably directed 90deg relative to the light source through a telecentric lens to a scanner which records an image of the target such as a direct part marking code.

Current plate velocities relative to the hotspots incorporating the NUVEL-1 global plate motion model

NASA Technical Reports Server (NTRS)

Gripp, Alice E.; Gordon, Richard G.

1990-01-01

The NUVEL-1 model of current global relative plate velocities is presently incorporated into HS2-NUVEL1, a global model for plate velocities relative to hotspots; the results thus obtained are compared with those of the AM1-2 model of hotspot-relative plate velocities. While there are places in which plate velocities relative to the hotspots differ between HS2-NUVEL1 and AM1-2 by tens of degrees in direction and 15 mm/yr in speed, the hotspot Euler vectors differ with 95 percent confidence only for the Arabian and Indian plates. Plates attached to subducting slabs move faster relative to the hotspots than do plates without slabs.

How mantle slabs drive plate tectonics.

PubMed

Conrad, Clinton P; Lithgow-Bertelloni, Carolina

2002-10-04

The gravitational pull of subducted slabs is thought to drive the motions of Earth's tectonic plates, but the coupling between slabs and plates is not well established. If a slab is mechanically attached to a subducting plate, it can exert a direct pull on the plate. Alternatively, a detached slab may drive a plate by exciting flow in the mantle that exerts a shear traction on the base of the plate. From the geologic history of subduction, we estimated the relative importance of "pull" versus "suction" for the present-day plates. Observed plate motions are best predicted if slabs in the upper mantle are attached to plates and generate slab pull forces that account for about half of the total driving force on plates. Slabs in the lower mantle are supported by viscous mantle forces and drive plates through slab suction.

Differences in the Use of Selective Attention by More Successful and Less Successful Tenth-Grade Readers.

ERIC Educational Resources Information Center

Reynolds, Ralph E.; And Others

1990-01-01

Differences in use of selective attention by 64 more successful and 48 less successful readers in the tenth grade were studied. More successful readers are more aware of how and when to use the selective attention strategy and use more conceptual attention while reading than do less successful readers. (SLD)

Absolute Plate Velocities from Seismic Anisotropy

NASA Astrophysics Data System (ADS)

Kreemer, Corné; Zheng, Lin; Gordon, Richard

2015-04-01

The orientation of seismic anisotropy inferred beneath plate interiors may provide a means to estimate the motions of the plate relative to the sub-asthenospheric mantle. Here we analyze two global sets of shear-wave splitting data, that of Kreemer [2009] and an updated and expanded data set, to estimate plate motions and to better understand the dispersion of the data, correlations in the errors, and their relation to plate speed. We also explore the effect of using geologically current plate velocities (i.e., the MORVEL set of angular velocities [DeMets et al. 2010]) compared with geodetically current plate velocities (i.e., the GSRM v1.2 angular velocities [Kreemer et al. 2014]). We demonstrate that the errors in plate motion azimuths inferred from shear-wave splitting beneath any one tectonic plate are correlated with the errors of other azimuths from the same plate. To account for these correlations, we adopt a two-tier analysis: First, find the pole of rotation and confidence limits for each plate individually. Second, solve for the best fit to these poles while constraining relative plate angular velocities to consistency with the MORVEL relative plate angular velocities. The SKS-MORVEL absolute plate angular velocities (based on the Kreemer [2009] data set) are determined from the poles from eight plates weighted proportionally to the root-mean-square velocity of each plate. SKS-MORVEL indicates that eight plates (Amur, Antarctica, Caribbean, Eurasia, Lwandle, Somalia, Sundaland, and Yangtze) have angular velocities that differ insignificantly from zero. The net rotation of the lithosphere is 0.25±0.11° Ma-1 (95% confidence limits) right-handed about 57.1°S, 68.6°E. The within-plate dispersion of seismic anisotropy for oceanic lithosphere (σ=19.2° ) differs insignificantly from that for continental lithosphere (σ=21.6° ). The between-plate dispersion, however, is significantly smaller for oceanic lithosphere (σ=7.4° ) than for continental

Contextual diversity is a main determinant of word identification times in young readers.

PubMed

Perea, Manuel; Soares, Ana Paula; Comesaña, Montserrat

2013-09-01

Recent research with college-aged skilled readers by Adelman and colleagues revealed that contextual diversity (i.e., the number of contexts in which a word appears) is a more critical determinant of visual word recognition than mere repeated exposure (i.e., word frequency) (Psychological Science, 2006, Vol. 17, pp. 814-823). Given that contextual diversity has been claimed to be a relevant factor to word acquisition in developing readers, the effects of contextual diversity should also be a main determinant of word identification times in developing readers. A lexical decision experiment was conducted to examine the effects of contextual diversity and word frequency in young readers (children in fourth grade). Results revealed a sizable effect of contextual diversity, but not of word frequency, thereby generalizing Adelman and colleagues' data to a child population. These findings call for the implementation of dynamic developmental models of visual word recognition that go beyond a learning rule by mere exposure. Copyright © 2012 Elsevier Inc. All rights reserved.

Altering cortical connectivity: Remediation-induced changes in the white matter of poor readers

PubMed Central

Keller, Timothy A.; Just, Marcel Adam

2009-01-01

SUMMARY Neuroimaging studies using diffusion tensor imaging (DTI) have revealed regions of cerebral white matter with decreased microstructural organization (lower fractional anisotropy or FA) among poor readers. We examined whether 100 hours of intensive remedial instruction affected the white matter of 8–10-year-old poor readers. Prior to instruction, poor readers had significantly lower FA than good readers in a region of the left anterior centrum semiovale. The instruction resulted in a change in white matter (significantly increased FA), and in the very same region. The FA increase was correlated with a decrease in radial diffusivity (but not with a change in axial diffusivity), suggesting that myelination had increased. Furthermore, the FA increase was correlated with improvement in phonological decoding ability, clarifying the cognitive locus of the effect. The results demonstrate for the first time the capability of a behavioral intervention to bring about a positive change in cortico-cortical white matter tracts. PMID:20005820

Coherent motion threshold measurements for M-cell deficit differ for above- and below-average readers.

PubMed

Solan, Harold A; Hansen, Peter C; Shelley-Tremblay, John; Ficarra, Anthony

2003-11-01

Research during the past 20 years has influenced the management of diagnosis and treatment of children identified as having learning-related vision problems. The intent of this study is to determine whether coherent motion threshold testing can distinguish better-than-average non-disabled (ND) readers from those who are moderately reading disabled (RD) among sixth-grade students. A sample of 23 better-than-average non-disabled readers (> or = 80th percentile) and 27 moderately disabled readers (< or = 32nd percentile) were identified using a standardized reading comprehension test. Each participant was tested for coherent motion threshold. Previous psychophysical and fMRI research with adults suggests that coherent motion threshold is a valid measure of magnocellular (M-cell) integrity. The average of two coherent motion threshold trials was significantly greater for moderately reading disabled subjects than for above-average readers (p < 0.01). The mean threshold percentage of dots required to observe lateral motion was 9.2% for moderately reading disabled readers and 4.6% for superior readers (p = 0.001). The outcome of this preliminary study provides an efficient procedure to identify sixth-grade students whose reading disability may be associated with an M-cell deficit. Our previous investigations involving visual processing, visual attention, and oculomotor therapy have resulted in significant improvements in reading comprehension, visual attention, and eye movements. It remains to be demonstrated whether vision therapy has an impact on the M-cell deficit, as measured with coherent motion threshold testing for moderately disabled readers.

Analytical validation of an ultra low-cost mobile phone microplate reader for infectious disease testing.

PubMed

Wang, Li-Ju; Naudé, Nicole; Demissie, Misganaw; Crivaro, Anne; Kamoun, Malek; Wang, Ping; Li, Lei

2018-07-01

Most mobile health (mHealth) diagnostic devices for laboratory tests only analyze one sample at a time, which is not suitable for large volume serology testing, especially in low-resource settings with shortage of health professionals. In this study, we developed an ultra-low-cost clinically-accurate mobile phone microplate reader (mReader), and clinically validated this optical device for 12 infectious disease tests. The mReader optically reads 96 samples on a microplate at one time. 771 de-identified patient samples were tested for 12 serology assays for bacterial/viral infections. The mReader and the clinical instrument blindly read and analyzed all tests in parallel. The analytical accuracy and the diagnostic performance of the mReader were evaluated across the clinical reportable categories by comparison with clinical laboratorial testing results. The mReader exhibited 97.59-99.90% analytical accuracy and <5% coefficient of variation (CV). The positive percent agreement (PPA) in all 12 tests achieved 100%, negative percent agreement (NPA) was higher than 83% except for one test (42.86%), and overall percent agreement (OPA) ranged 89.33-100%. We envision the mReader can benefit underserved areas/populations and low-resource settings in rural clinics/hospitals at a low cost (~$50 USD) with clinical-level analytical quality. It has the potential to improve health access, speed up healthcare delivery, and reduce health disparities and education disparities by providing access to a low-cost spectrophotometer. Copyright © 2018 Elsevier B.V. All rights reserved.

Highly conductive composites for fuel cell flow field plates and bipolar plates

DOEpatents

Jang, Bor Z; Zhamu, Aruna; Song, Lulu

2014-10-21

This invention provides a fuel cell flow field plate or bipolar plate having flow channels on faces of the plate, comprising an electrically conductive polymer composite. The composite is composed of (A) at least 50% by weight of a conductive filler, comprising at least 5% by weight reinforcement fibers, expanded graphite platelets, graphitic nano-fibers, and/or carbon nano-tubes; (B) polymer matrix material at 1 to 49.9% by weight; and (C) a polymer binder at 0.1 to 10% by weight; wherein the sum of the conductive filler weight %, polymer matrix weight % and polymer binder weight % equals 100% and the bulk electrical conductivity of the flow field or bipolar plate is at least 100 S/cm. The invention also provides a continuous process for cost-effective mass production of the conductive composite-based flow field or bipolar plate.

Anatomic fit of six different radial head plates: comparison of precontoured low-profile radial head plates.

PubMed

Burkhart, Klaus Josef; Nowak, Tobias E; Kim, Yoon-Joo; Rommens, Pol M; Müller, Lars P

2011-04-01

Bulky implants may lead to symptomatic soft tissue irritation after open reduction and internal fixation of radial head and neck fractures. The purpose of our study was to compare the anatomic fit of precontoured radial head plates. We stripped 22 embalmed human cadaveric radiuses of soft tissues. We investigated 6 radial head plates: (1) the Medartis radial head buttress plate (MBP), (2) the Medartis radial head rim plate (MRP), (3) the Synthes radial neck plate (SNP), (4) the Synthes radial head plate (SHP), (5) the Acumed radial head plate (AHP), and (6) the Wright radial head plate (WHP). Each plate was applied to each radial head at the place of best fit within the safe zone. We tested 4 parameters of anatomic fit: (1) plate-to-bone distance, (2) plate contact judged by 3 different observers, (3) pin-subchondral zone distance, and (4) plate-to-bone contact after adjustment of the plates. The MBP and MRP showed the lowest profile by objective measurements, the SNP and AHP had a moderate profile, and the SHP and WHP demonstrated the bulkiest profile. The subjective assessments also demonstrated the best fit for the MBP, a good fit for the SNP, a moderate fit for the MRP and AHP, and a poor fit for the SHP and WHP. The MBP, MRP, and AHP could always provide pin-subchondral zone contact, unlike the SHP, SNP, and WHP. After bending, significant improvement of plate-to-bone distance could only be seen for the MBP, MRP, and WHP. The ranking among plates remained the same except for the WHP, which showed a significantly lower plate-to-bone distance than the SHP. Currently available radial head implants are heterogeneous. The MBP and MRP showed the lowest profile and best anatomic fit. Owing to the complex radial head anatomy, to date there is no one radial head plate that perfectly fits all radial heads. Conformance of existing plates to the radial head and neck is not perfect. Careful plate selection and modification, when necessary, may minimize interference of this

Narrative Comprehension Processes: A Study of Native and Non-Native Readers of Japanese.

ERIC Educational Resources Information Center

Horiba, Yukie

1990-01-01

Comparison of the reading strategies and resulting reading comprehension and recall of native and advanced non-native adult speakers of Japanese found that reading strategy significantly affected comprehension and recall, with non-native readers with limited language command paying more attention to vocabulary and grammar than native readers, who…

Selected Linguistic and Perceptual Abilities of Empirically Derived Subgroups of Learning Disabled Readers.

ERIC Educational Resources Information Center

Lyon, Reid; And Others

1981-01-01

Linguistic and perceptual tests were administered to learning disabled readers (LDR) and normal readers (NR). Results found six LDR subgroups all significantly different. Differences were found among the six LDR subgroups on measures of oral reading, reading comprehension, and spelling skills, but not on family history and developmental…

Mr. Darwin and His Readers: Exploring Interpersonal Metadiscourse as a Dimension of "Ethos."

ERIC Educational Resources Information Center

Crismore, Avon; Farnsworth, Rodney

1989-01-01

Examines the "ethos" (the perceived trustworthiness of authors by readers) gained for Charles Darwin by means of the interpersonal metadiscourse he used in two chapters of the "Origin of Species." Concludes that Darwin used metadiscourse to create an "ethos" for his readers that informs, impresses, and wins them over…

Evaluating the Impact of a Multistrategy Inference Intervention for Middle-Grade Struggling Readers

ERIC Educational Resources Information Center

Barth, Amy E.; Elleman, Amy

2017-01-01

Purpose: We examined the effectiveness of a multistrategy inference intervention designed to increase inference making and reading comprehension for middle-grade struggling readers. Method: A total of 66 middle-grade struggling readers were randomized to treatment (n = 33) and comparison (n = 33) conditions. Students in the treatment group…

Aseptic laboratory techniques: plating methods.

PubMed

Sanders, Erin R

2012-05-11

Microorganisms are present on all inanimate surfaces creating ubiquitous sources of possible contamination in the laboratory. Experimental success relies on the ability of a scientist to sterilize work surfaces and equipment as well as prevent contact of sterile instruments and solutions with non-sterile surfaces. Here we present the steps for several plating methods routinely used in the laboratory to isolate, propagate, or enumerate microorganisms such as bacteria and phage. All five methods incorporate aseptic technique, or procedures that maintain the sterility of experimental materials. Procedures described include (1) streak-plating bacterial cultures to isolate single colonies, (2) pour-plating and (3) spread-plating to enumerate viable bacterial colonies, (4) soft agar overlays to isolate phage and enumerate plaques, and (5) replica-plating to transfer cells from one plate to another in an identical spatial pattern. These procedures can be performed at the laboratory bench, provided they involve non-pathogenic strains of microorganisms (Biosafety Level 1, BSL-1). If working with BSL-2 organisms, then these manipulations must take place in a biosafety cabinet. Consult the most current edition of the Biosafety in Microbiological and Biomedical Laboratories (BMBL) as well as Material Safety Data Sheets (MSDS) for Infectious Substances to determine the biohazard classification as well as the safety precautions and containment facilities required for the microorganism in question. Bacterial strains and phage stocks can be obtained from research investigators, companies, and collections maintained by particular organizations such as the American Type Culture Collection (ATCC). It is recommended that non-pathogenic strains be used when learning the various plating methods. By following the procedures described in this protocol, students should be able to: Perform plating procedures without contaminating media. Isolate single bacterial colonies by the streak-plating

Aseptic Laboratory Techniques: Plating Methods

PubMed Central

Sanders, Erin R.

2012-01-01

Microorganisms are present on all inanimate surfaces creating ubiquitous sources of possible contamination in the laboratory. Experimental success relies on the ability of a scientist to sterilize work surfaces and equipment as well as prevent contact of sterile instruments and solutions with non-sterile surfaces. Here we present the steps for several plating methods routinely used in the laboratory to isolate, propagate, or enumerate microorganisms such as bacteria and phage. All five methods incorporate aseptic technique, or procedures that maintain the sterility of experimental materials. Procedures described include (1) streak-plating bacterial cultures to isolate single colonies, (2) pour-plating and (3) spread-plating to enumerate viable bacterial colonies, (4) soft agar overlays to isolate phage and enumerate plaques, and (5) replica-plating to transfer cells from one plate to another in an identical spatial pattern. These procedures can be performed at the laboratory bench, provided they involve non-pathogenic strains of microorganisms (Biosafety Level 1, BSL-1). If working with BSL-2 organisms, then these manipulations must take place in a biosafety cabinet. Consult the most current edition of the Biosafety in Microbiological and Biomedical Laboratories (BMBL) as well as Material Safety Data Sheets (MSDS) for Infectious Substances to determine the biohazard classification as well as the safety precautions and containment facilities required for the microorganism in question. Bacterial strains and phage stocks can be obtained from research investigators, companies, and collections maintained by particular organizations such as the American Type Culture Collection (ATCC). It is recommended that non-pathogenic strains be used when learning the various plating methods. By following the procedures described in this protocol, students should be able to: ● Perform plating procedures without contaminating media. ● Isolate single bacterial colonies by the

STARtorialist: Astronomy Fashion & Culture Blog and Reader Survey Results

NASA Astrophysics Data System (ADS)

Ash, Summer; Rice, Emily L.; Jarreau, Paige B.

2016-01-01

STARtorialist (startorialist.com) is a Tumblr-based blog that curates the proliferation of "Astro Fashion" - clothing accessories, decor, and more - with the goal of celebrating the beauty of the universe and highlighting the science behind the astronomical imagery. Since launching in January 2013, we have written over 1000 unique posts about everything from handmade and boutique products to mass-produced commercial items to haute couture seen on fashion runways. Each blog post features images and descriptions of the products with links to the original astronomical images or other relevant science content. We also feature profiles of astronomers, scientists, students, and communicators wearing, making, or decorating with "startorial" items. Our most popular posts accumulate hundreds or thousands of notes (faves or reblogs, in Tumblr parlance), and one post has nearly 150,000 notes. In our second year, we have grown from 1,000 to just shy of 20,000 followers on Tumblr, with an increased audience on Twitter, Instagram, and Facebook as well. We present preliminary results from a reader survey conducted September-October 2015 in collaboration with science communication researcher Dr. Paige Jarreau. The survey provides data on reader habits, motivations, attitudes, and demographics in order to assess how STARtorialist has influenced our readers' views on science, scientists, and the scientific community as a whole.

The suitability of gray-scale electronic readers for dermatology journals.

PubMed

Choi, Jae Eun; Kim, Dai Hyun; Seo, Soo Hong; Kye, Young Chul; Ahn, Hyo Hyun

2014-12-01

The rapid development of information and communication technology has replaced traditional books by electronic versions. Most print dermatology journals have been replaced with electronic journals (e-journals), which are readily used by clinicians and medical students. The objectives of this study were to determine whether e-readers are appropriate for reading dermatology journals, to conduct an attitude study of both medical personnel and students, and to find a way of improving e-book use in the field of dermatology. All articles in the Korean Journal of Dermatology published from January 2010 to December 2010 were utilized in this study. Dermatology house officers, student trainees in their fourth year of medical school, and interns at Korea University Medical Center participated in the study. After reading the articles with Kindle 2, their impressions and evaluations were recorded using a questionnaire with a 5-point Likert scale. The results demonstrated that gray-scale e-readers might not be suitable for reading dermatology journals, especially for case reports compared to the original articles. Only three of the thirty-one respondents preferred e-readers to printed papers. The most common suggestions from respondents to encourage usage of e-books in the field of dermatology were the introduction of a color display, followed by the use of a touch screen system, a cheaper price, and ready-to-print capabilities. In conclusion, our study demonstrated that current e-readers might not be suitable for reading dermatology journals. However, they may be utilized in selected situations according to the type and topic of the papers.

Getting Ready to Read with Readers Theatre

ERIC Educational Resources Information Center

Barchers, Suzanne I; Pfeffinger, Charla R.

2007-01-01

Readers theatre is a presentation by two or more participants who read from scripts and interpret a literary work in such a way that the audience imaginatively senses characterization, setting, and action. This book offers 50, two-page reproducible scripts to entice the preschool and kindergarten group into beginning to read. These patterned…

Adult Hispanic ESL Students and Graded Readers

ERIC Educational Resources Information Center

Martinez, Liza E.

2017-01-01

This study examined the extent to which graded readers vis-à-vis scaffolded silent reading (ScSR) resulted in increased vocabulary, reading comprehension, and a positive attitude toward reading. A mixed-methods study was administered to two upper-intermediate adult ESL classes at a community college in southwestern Arizona. Both groups took The…

Project Physics Reader 4, Light and Electromagnetism.

ERIC Educational Resources Information Center

Harvard Univ., Cambridge, MA. Harvard Project Physics.

As a supplement to Project Physics Unit 4, a collection of articles is presented in this reader for student browsing. The 21 articles are included under the following headings: Letter from Thomas Jefferson; On the Method of Theoretical Physics; Systems, Feedback, Cybernetics; Velocity of Light; Popular Applications of Polarized Light; Eye and…

Communication: Learning to Write for the Reader.

ERIC Educational Resources Information Center

Todd, Mavis M.

1980-01-01

A new approach to teaching students to write effective business letters is presented. It uses class members as resources, writers, and readers for the assignment. Four stages are described: the interview, discussion of models and format, revision, and the reply. Results of the exercise and suggestions for continued application are included. (CT)

Accelerated Reader: Evaluation Report and Executive Summary

ERIC Educational Resources Information Center

Gorard, Stephen; Siddiqui, Nadia; See, Beng Huat

2015-01-01

Accelerated Reader (AR) is a whole-group reading management and monitoring program that aims to foster the habit of independent reading among primary and early secondary age pupils. The internet-based software initially screens pupils according to their reading levels, and suggests books that match their reading age and reading interest. Pupils…

Towards a Culturally Situated Reader Response Theory

ERIC Educational Resources Information Center

Brooks, Wanda; Browne, Susan

2012-01-01

This article describes a theory of how culture enables literary interpretations of texts. We begin with a brief overview of the reader response field. From there, we introduce the theory and provide illustrative participant data examples. These data examples illustrate the four cultural positions middle grade students in our research assumed when…

Plastic Logic quits e-reader market

NASA Astrophysics Data System (ADS)

Perks, Simon

2012-07-01

A UK firm spun out from the University of Cambridge that sought to be a world leader in flexible organic electronic circuits and displays has pulled out of the competitive e-reader market as it struggles to find a commercial outlet for its technology. Plastic Logic announced in May that it is to close its development facility in Mountain View, California, with the loss of around 40 jobs.

The Development and Use of Cheremic, Graphemic, and Phonological Coding in Deaf High School-Aged Readers.

ERIC Educational Resources Information Center

O'Connor, Katherine; Taylor, Linda S.

This report outlines the a study that investigated the reading skills of high school students (ages 14-19) with severe or profound prelingual deafness, including 6 skilled readers with parents with deafness, 6 skilled readers with hearing parents, and 6 average readers with hearing parents. The study determined short-term memory strategies used by…

Investigation of Readers' Self-Concept: The Influence of Reading Proficiency on Self-Concept

ERIC Educational Resources Information Center

Chiappelli-LaSalle, Deborah

2011-01-01

The purpose of this quantitative correlation study was to research the influence of reading proficiency on global self-concept (TOT) for sixth-grade proficient readers and below proficiency readers, as well as the self-concept domains of Behavioral Adjustment (BEH), Intellectual and School Status (INT), Physical Appearance and Attributes (PHY),…

Glass-bead peen plating

NASA Technical Reports Server (NTRS)

Graves, J. R.

1974-01-01

Peen plating of aluminum, copper, and nickel powders was investigated. Only aluminum was plated successfully within the range of peen plating conditions studied. Optimum plating conditions for aluminum were found to be: (1) bead/powder mixture containing 25 to 35% powder by weight, (2) peening intensity of 0.007A as measured by Almen strip, and (3) glass impact bead diameter of at least 297 microns (0.0117 inches) for depositing-100 mesh aluminum powder. No extensive cleaning or substrate preparation is required beyond removing loose dirt or heavy oil.

Electronic Equipment Cold Plates

DTIC Science & Technology

1976-04-01

using fans or blowers to force the air through the cooling device». ^J^lJ^^i 5!°^ it ia ’«"^"o^ve. nonto«ic. nonfla—able, *nd possesses good ...Techniques GENERAL THERMAL CONTROL SYSTEMS AND THEIR REgUIREMENTS FLON DISTRIBUTION IN MANIFOLDS THE COLD PLATE IA ,! 1 3 S 12 15 33 32 32... IA .1 132 132 132 155 169 179 183 r (1) Air-Cooled Cold Plate No. (2) Air-Cooled Cold Plate No. (3) Air-cooled Cold Plate No. (4) Air-Cooled

Learning disabled and average readers' working memory and comprehension: does metacognition play a role?

PubMed

Swanson, H L; Trahan, M

1996-09-01

The present study investigates (a) whether learning disabled readers' working memory deficits that underlie poor reading comprehension are related to a general system, and (b) whether metacognition contributes to comprehension beyond what is predicted by working memory and word knowledge. To this end, performance between learning and disabled (N = 60) and average readers (N = 60) was compared on the reading comprehension, reading rate, and vocabulary subtests of the Nelson Skills Reading Test, Sentence Span test composed of high and low imagery words, and a Metacognitive Questionnaire. As expected, differences between groups in working memory, vocabulary, and reading measures emerged, whereas ability groups were statistically comparable on the Metacognitive Questionnaire. A within-group analysis indicated that the correlation patterns between working memory, vocabulary, metacognition, and reading comprehension were not the same between ability groups. For predicting reading comprehension, the metacognitive questionnaire best predicted learning disabled readers' performance, whereas the working memory span measure that included low-imagery words best predicted average achieving readers' comprehension. Overall, the results suggest that the relationship between learning disabled readers' generalised working memory deficits and poor reading comprehension may be mediated by metacognition.

Peen plating

NASA Technical Reports Server (NTRS)

Babecki, A. J. (Inventor); Haehner, C. L.

1973-01-01

A process for metal plating which comprises spraying a mixture of metallic powder and small peening particles at high velocity against a surface is described. The velocity must be sufficient to impact and bond metallic powder onto the surface. In the case of metal surfaces, the process has as one of its advantages providing mechanical working (hardening) of the surface simultaneously with the metal plating.

The Impact of Morphological Awareness on Word Reading and Dictation in Chinese Early Adolescent Readers With and Without Dyslexia.

PubMed

Kalindi, Sylvia Chanda; Chung, Kevin Kien Hoa

2018-01-01

This study investigated the role of morphological awareness in understanding Chinese word reading and dictation among Chinese-speaking adolescent readers in Hong Kong as well as the cognitive-linguistic profile of early adolescent readers with dyslexia. Fifty-four readers with dyslexia in Grades 5 and 6 were compared with 54 chronological age-matched (CA) typical readers on the following measures of cognitive-linguistic and literacy skills: morphological awareness, phonological awareness, visual-orthographic knowledge, rapid naming, vocabulary knowledge, verbal short-term memory (STM), Chinese word reading, and dictation (or spelling). The results indicated that early adolescent readers with dyslexia performed less well than the typical readers on all cognitive-linguistic and literacy measures except the phonological measures. Both groups' scores showed substantial correlations between morphological awareness and Chinese word reading and dictation. Visual-orthographic knowledge and rapid naming were also associated with dictation in early adolescent readers with and without dyslexia, respectively. Moderated multiple regression analyses further revealed that morphological awareness and rapid naming explained unique variance in word reading and dictation for the readers with dyslexia and typical readers separately after controlling readers' age and group effect. These results highlight the potential importance of morphological awareness and rapid naming in Chinese word reading and writing in Chinese early adolescents' literacy development and impairment.

Low-Skilled Adult Readers Look Like Typically Developing Child Readers: A Comparison of Reading Skills and Eye Movement Behavior

ERIC Educational Resources Information Center

Barnes, Adrienne E.; Kim, Young-Suk

2016-01-01

Adults enrolled in basic education exhibit poor academic performance, often reading at elementary and middle-school levels. The current study investigated the similarities and differences of reading skills and eye movement behavior between a sample of 25 low-skilled adult readers and 25 first grade students matched on word reading skill. t tests…

Are Drivers' Manuals Right for Reluctant Readers?

ERIC Educational Resources Information Center

Stahl, Norman A.; And Others

Readability formulas were applied to the drivers' manuals of each of the 50 United States and Puerto Rico to determine whether the manuals were appropriate materials for motivating reluctant or low achieving adolescent readers. Four 100-word samples were chosen from each manual, according to four themes common to each manual and of particular…

Project Physics Reader 1, Concepts of Motion.

ERIC Educational Resources Information Center

Harvard Univ., Cambridge, MA. Harvard Project Physics.

As a supplement to Project Physics Unit 1, 21 articles are presented in this reader. Concepts of motion are discussed under headings: motion, motion in words, representation of movement, introducing vectors, Galileo's discussion of projectile motion, Newton's laws of dynamics, the dynamics of a golf club, report on Tait's lecture on force, and bad…

Biography Today: Profiles of People of Interest to Young Readers. Scientists & Inventors Series.

ERIC Educational Resources Information Center

Abbey, Cherie D., Ed.

2002-01-01

This volume on "Scientists and Inventors" was created to appeal to young readers in a format they can enjoy reading and can readily understand. Each volume contains alphabetically arranged sketches of outstanding people. Each entry provides at least one picture of the individual profiled, and bold-faced rubrics lead the reader to…

How the interior viscosity structure of a terrestrial planet controls plate driving forces and plate tectonics

NASA Astrophysics Data System (ADS)

Hoeink, T.; Lenardic, A.; Jellinek, M.; Richards, M. A.

2011-12-01

One of the fundamental unresolved problems in Earth and planetary science is the generation of plate tectonics from mantle convection. Important achievements can be made when considering rheological properties in the context of mantle convection dynamics. Among these milestones are (1) a deeper understanding of the balance of forces that drive and resist plate motion and (2) the dynamic generation of narrow plate boundaries (that lead to a piecewise continuous surface velocity distribution). Extending classic plate-tectonic theory we predict a plate driving force due to viscous coupling at the base of the plate from fast flow in the asthenosphere. Flow in the asthenosphere is due to shear-driven contributions from an overriding plate and due to additional pressure-driven contributions. We use scaling analysis to show that the extent to which this additional plate-driving force contributes to plate motions depends on the lateral dimension of plates and on the relative viscosities and thicknesses of lithosphere and asthenosphere. Whereas slab-pull forces always govern the motions of plates with a lateral extent greater than the mantle depth, asthenosphere-drive forces can be relatively more important for smaller (shorter wavelength) plates, large relative asthenosphere viscosities or large asthenosphere thicknesses. Published plate velocities, tomographic images and age-binned mean shear wave velocity anomaly data allow us to estimate the relative contributions of slab-pull and asthenosphere-drive forces driving the motions of the Atlantic and Pacific plates. At the global scale of terrestrial planets, we use 3D spherical shell simulations of mantle convection with temperature-, depth- and stress dependent rheology to demonstrate that a thin low-viscosity layer (asthenosphere) governs convective stresses imparted to the lithosphere. We find, consistent with theoretical predictions, that convective stresses increase for thinner asthenospheres. This result might

Young readers' use of phonological information: phonological awareness, memory, and comprehension.

PubMed

Gray, Audra; McCutchen, Deborah

2006-01-01

In this study, we explored the relationship between beginning readers' phonological awareness and other aspects of phonological processing, specifically as manifested in short-term memory and comprehension tasks. The theoretical questions underlying the study were (a) what roles phonological processes play in children's beginning reading, from word identification through sentence comprehension, and (b) whether those roles are sufficiently related that potential difficulties at one level directly affect processing at other levels. Phonologically induced effects were observed for word-list memory and for sentence judgments for both novice readers (at the end of kindergarten) and relatively more experienced readers (end of Grades 1 and 2). For both age groups, correlational analyses revealed relationships among phonological awareness, phonological processing in list memory, and word reading. However, phonological processing in sentence comprehension was not related to other types of phonological processing. These results indicate that although phonology plays a role during comprehension, phonological processing may not be as limiting a factor in comprehension as in word reading.

Dynamic Stabilization of Simple Fractures With Active Plates Delivers Stronger Healing Than Conventional Compression Plating

PubMed Central

Tsai, Stanley; Bliven, Emily K.; von Rechenberg, Brigitte; Kindt, Philipp; Augat, Peter; Henschel, Julia; Fitzpatrick, Daniel C.; Madey, Steven M.

2017-01-01

Objectives: Active plates dynamize a fracture by elastic suspension of screw holes within the plate. We hypothesized that dynamic stabilization with active plates delivers stronger healing relative to standard compression plating. Methods: Twelve sheep were randomized to receive either a standard compression plate (CP) or an active plate (ACTIVE) for stabilization of an anatomically reduced tibial osteotomy. In the CP group, absolute stabilization was pursued by interfragmentary compression with 6 cortical screws. In the ACTIVE group, dynamic stabilization after bony apposition was achieved with 6 elastically suspended locking screws. Fracture healing was analyzed weekly on radiographs. After sacrifice 9 weeks postsurgery, the torsional strength of healed tibiae and contralateral tibiae was measured. Finally, computed tomography was used to assess fracture patterns and healing modes. Results: Healing in both groups included periosteal callus formation. ACTIVE specimens had almost 6 times more callus area by week 9 (P < 0.001) than CP specimens. ACTIVE specimens recovered on average 64% of their native strength by week 9, and were over twice as strong as CP specimens, which recovered 24% of their native strength (P = 0.008). Microcomputed tomography demonstrated that compression plating induced a combination of primary bone healing and gap healing. Active plating consistently stimulated biological bone healing by periosteal callus formation. Conclusions: Compared with compression plating, dynamic stabilization of simple fractures with active plates delivers significantly stronger healing. PMID:27861456

Buckling analysis for axially compressed flat plates, structural sections, and stiffened plates reinforced with laminated composites

NASA Technical Reports Server (NTRS)

Viswanathan, A. V.; Soong, T.; Miller, R. E., Jr.

1971-01-01

A classical buckling analysis is developed for stiffened, flat plates composed of a series of linked plate and beam elements. Plates are idealized as multilayered orthotropic elements. Structural beads and lips are idealized as beams. The loaded edges of the stiffened plate are simply-supported and the conditions at the unloaded edges can be prescribed arbitrarily. The plate and beam elements are matched along their common junctions for displacement continuity and force equilibrium in an exact manner. Offsets between elements are considered in the analysis. Buckling under uniaxial compressive load for plates, sections, and stiffened plates is investigated. Buckling loads are the lowest of all possible general and local failure modes, and the mode shape is used to determine whether buckling is a local or general instability. Numerical correlations with existing analysis and test data for plates, sections, and stiffened plates including boron-reinforced structures are discussed. In general correlations are reasonably good.

Interoperation of an UHF RFID Reader and a TCP/IP Device via Wired and Wireless Links

PubMed Central

Lee, Sang Hoon; Jin, Ik Soo

2011-01-01

A main application in radio frequency identification (RFID) sensor networks is the function that processes real-time tag information after gathering the required data from multiple RFID tags. The component technologies that contain an RFID reader, called the interrogator, which has a tag chip, processors, coupling antenna, and a power management system have advanced significantly over the last decade. This paper presents a system implementation for interoperation between an UHF RFID reader and a TCP/IP device that is used as a gateway. The proposed system consists of an UHF RFID tag, an UHF RFID reader, an RF end-device, an RF coordinator, and a TCP/IP I/F. The UHF RFID reader, operating at 915 MHz, is compatible with EPC Class-0/Gen1, Class-1/Gen1 and 2, and ISO18000-6B. In particular, the UHF RFID reader can be combined with the RF end-device/coordinator for a ZigBee (IEEE 802.15.4) interface, which is a low-power wireless standard. The TCP/IP device communicates with the RFID reader via wired links. On the other hand, it is connected to the ZigBee end-device via wireless links. The web based test results show that the developed system can remotely recognize information of multiple tags through the interoperation between the RFID reader and the TCP/IP device. PMID:22346665

Interoperation of an UHF RFID reader and a TCP/IP device via wired and wireless links.

PubMed

Lee, Sang Hoon; Jin, Ik Soo

2011-01-01

A main application in radio frequency identification (RFID) sensor networks is the function that processes real-time tag information after gathering the required data from multiple RFID tags. The component technologies that contain an RFID reader, called the interrogator, which has a tag chip, processors, coupling antenna, and a power management system have advanced significantly over the last decade. This paper presents a system implementation for interoperation between an UHF RFID reader and a TCP/IP device that is used as a gateway. The proposed system consists of an UHF RFID tag, an UHF RFID reader, an RF end-device, an RF coordinator, and a TCP/IP I/F. The UHF RFID reader, operating at 915 MHz, is compatible with EPC Class-0/Gen1, Class-1/Gen1 and 2, and ISO18000-6B. In particular, the UHF RFID reader can be combined with the RF end-device/coordinator for a ZigBee (IEEE 802.15.4) interface, which is a low-power wireless standard. The TCP/IP device communicates with the RFID reader via wired links. On the other hand, it is connected to the ZigBee end-device via wireless links. The web based test results show that the developed system can remotely recognize information of multiple tags through the interoperation between the RFID reader and the TCP/IP device.

Analysis of components of variance in multiple-reader studies of computer-aided diagnosis with different tasks

NASA Astrophysics Data System (ADS)

Beiden, Sergey V.; Wagner, Robert F.; Campbell, Gregory; Metz, Charles E.; Chan, Heang-Ping; Nishikawa, Robert M.; Schnall, Mitchell D.; Jiang, Yulei

2001-06-01

In recent years, the multiple-reader, multiple-case (MRMC) study paradigm has become widespread for receiver operating characteristic (ROC) assessment of systems for diagnostic imaging and computer-aided diagnosis. We review how MRMC data can be analyzed in terms of the multiple components of the variance (case, reader, interactions) observed in those studies. Such information is useful for the design of pivotal studies from results of a pilot study and also for studying the effects of reader training. Recently, several of the present authors have demonstrated methods to generalize the analysis of multiple variance components to the case where unaided readers of diagnostic images are compared with readers who receive the benefit of a computer assist (CAD). For this case it is necessary to model the possibility that several of the components of variance might be reduced when readers incorporate the computer assist, compared to the unaided reading condition. We review results of this kind of analysis on three previously published MRMC studies, two of which were applications of CAD to diagnostic mammography and one was an application of CAD to screening mammography. The results for the three cases are seen to differ, depending on the reader population sampled and the task of interest. Thus, it is not possible to generalize a particular analysis of variance components beyond the tasks and populations actually investigated.

BAO Plate Archive Project

NASA Astrophysics Data System (ADS)

Mickaelian, A. M.; Gigoyan, K. S.; Gyulzadyan, M. V.; Paronyan, G. M.; Abrahamyan, H. V.; Andreasyan, H. R.; Azatyan, N. M.; Kostandyan, G. R.; Samsonyan, A. L.; Mikayelyan, G. A.; Farmanyan, S. V.; Harutyunyan, V. L.

2017-12-01

We present the Byurakan Astrophysical Observatory (BAO) Plate Archive Project that is aimed at digitization, extraction and analysis of archival data and building an electronic database and interactive sky map. BAO Plate Archive consists of 37,500 photographic plates and films, obtained with 2.6m telescope, 1m and 0.5m Schmidt telescopes and other smaller ones during 1947-1991. The famous Markarian Survey (or the First Byurakan Survey, FBS) 2000 plates were digitized in 2002-2005 and the Digitized FBS (DFBS, www.aras.am/Dfbs/dfbs.html) was created. New science projects have been conducted based on this low-dispersion spectroscopic material. Several other smaller digitization projects have been carried out as well, such as part of Second Byurakan Survey (SBS) plates, photographic chain plates in Coma, where the blazar ON 231 is located and 2.6m film spectra of FBS Blue Stellar Objects. However, most of the plates and films are not digitized. In 2015, we have started a project on the whole BAO Plate Archive digitization, creation of electronic database and its scientific usage. Armenian Virtual Observatory (ArVO, www.aras.am/Arvo/arvo.htm) database will accommodate all new data. The project runs in collaboration with the Armenian Institute of Informatics and Automation Problems (IIAP) and will continues during 4 years in 2015-2018. The final result will be an Electronic Database and online Interactive Sky map to be used for further research projects. ArVO will provide all standards and tools for efficient usage of the scientific output and its integration in international databases.

Hypervelocity impact on shielded plates

NASA Technical Reports Server (NTRS)

Smith, James P.

1993-01-01

A ballistic limit equation for hypervelocity impact on thin plates is derived analytically. This equation applies to cases of impulsive impact on a plate that is protected by a multi-shock shield, and it is valid in the range of velocity above 6 km/s. Experimental tests were conducted at the NASA Johnson Space Center on square aluminum plates. Comparing the center deflections of these plates with the theoretical deflections of a rigid-plastic plate subjected to a blast load, one determines the dynamic yield strength of the plate material. The analysis is based on a theory for the expansion of the fragmented projectile and on a simple failure criterion. Curves are presented for the critical projectile radius versus the projectile velocity, and for the critical plate thickness versus the velocity. These curves are in good agreement with curves that have been generated empirically.

How and Why Stories for Readers Theatre

ERIC Educational Resources Information Center

Wolfman, Judy

2004-01-01

How did the bee get his bumble? How do birds get their feathers? Why is the bluebird blue? Curious first through fifth graders want to know how and why things happen! Judy Wolfman has created 40 Readers Theatre scripts based on imaginative and creative porquoi stories that stem from multicultural folktales as well as Native American Indian legends…

Building a Community of Readers: BookSpace

ERIC Educational Resources Information Center

Peterson, Glenn; McGlinn, Sharon Hilts

2008-01-01

In the spring of 2006, Hennepin County Library (HCL) in Minneapolis set out to create a compelling new reader's advisory website. Inspired by Web 2.0 principles, the library wanted to engage users as active participants, to integrate resources in ways that made sense to them, and to blend staff- and patron-contributed content to create an…