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Sample records for quick response qr

  1. Digital data for Quick Response (QR) codes of thermophiles to identify and compare the bacterial species isolated from Unkeshwar hot springs (India).

    PubMed

    Rekadwad, Bhagwan N; Khobragade, Chandrahasya N

    2016-03-01

    16S rRNA sequences of morphologically and biochemically identified 21 thermophilic bacteria isolated from Unkeshwar hot springs (19°85'N and 78°25'E), Dist. Nanded (India) has been deposited in NCBI repository. The 16S rRNA gene sequences were used to generate QR codes for sequences (FASTA format and full Gene Bank information). Diversity among the isolates is compared with known isolates and evaluated using CGR, FCGR and PCA i.e. visual comparison and evaluation respectively. Considerable biodiversity was observed among the identified bacteria isolated from Unkeshwar hot springs. The hyperlinked QR codes, CGR, FCGR and PCA of all the isolates are made available to the users on a portal https://sites.google.com/site/bhagwanrekadwad/. PMID:26793757

  2. Digital data for Quick Response (QR) codes of thermophiles to identify and compare the bacterial species isolated from Unkeshwar hot springs (India)

    PubMed Central

    Rekadwad, Bhagwan N.; Khobragade, Chandrahasya N.

    2015-01-01

    16S rRNA sequences of morphologically and biochemically identified 21 thermophilic bacteria isolated from Unkeshwar hot springs (1985?N and 7825?E), Dist. Nanded (India) has been deposited in NCBI repository. The 16S rRNA gene sequences were used to generate QR codes for sequences (FASTA format and full Gene Bank information). Diversity among the isolates is compared with known isolates and evaluated using CGR, FCGR and PCA i.e. visual comparison and evaluation respectively. Considerable biodiversity was observed among the identified bacteria isolated from Unkeshwar hot springs. The hyperlinked QR codes, CGR, FCGR and PCA of all the isolates are made available to the users on a portal https://sites.google.com/site/bhagwanrekadwad/. PMID:26793757

  3. The Mystery Behind the Code: Differentiated Instruction with Quick Response Codes in Secondary Physical Education

    ERIC Educational Resources Information Center

    Adkins, Megan; Wajciechowski, Misti R.; Scantling, Ed

    2013-01-01

    Quick response codes, better known as QR codes, are small barcodes scanned to receive information about a specific topic. This article explains QR code technology and the utility of QR codes in the delivery of physical education instruction. Consideration is given to how QR codes can be used to accommodate learners of varying ability levels as

  4. QR Codes

    ERIC Educational Resources Information Center

    Lai, Hsin-Chih; Chang, Chun-Yen; Li, Wen-Shiane; Fan, Yu-Lin; Wu, Ying-Tien

    2013-01-01

    This study presents an m-learning method that incorporates Integrated Quick Response (QR) codes. This learning method not only achieves the objectives of outdoor education, but it also increases applications of Cognitive Theory of Multimedia Learning (CTML) (Mayer, 2001) in m-learning for practical use in a diverse range of outdoor locations. When

  5. QR Codes

    ERIC Educational Resources Information Center

    Lai, Hsin-Chih; Chang, Chun-Yen; Li, Wen-Shiane; Fan, Yu-Lin; Wu, Ying-Tien

    2013-01-01

    This study presents an m-learning method that incorporates Integrated Quick Response (QR) codes. This learning method not only achieves the objectives of outdoor education, but it also increases applications of Cognitive Theory of Multimedia Learning (CTML) (Mayer, 2001) in m-learning for practical use in a diverse range of outdoor locations. When…

  6. Research and Trends in the Field of Technology-Enhanced Learning from 2006 to 2011: A Content Analysis of Quick Response Code (QR-Code) and Its Application in Selected Studies

    ERIC Educational Resources Information Center

    Hau, Goh Bak; Siraj, Saedah; Alias, Norlidah; Rauf, Rose Amnah Abd.; Zakaria, Abd. Razak; Darusalam, Ghazali

    2013-01-01

    This study provides a content analysis of selected articles in the field of QR code and its application in educational context that were published in journals and proceedings of international conferences and workshops from 2006 to 2011. These articles were cross analysed by published years, journal, and research topics. Further analysis was…

  7. QR Codes 101

    ERIC Educational Resources Information Center

    Crompton, Helen; LaFrance, Jason; van 't Hooft, Mark

    2012-01-01

    A QR (quick-response) code is a two-dimensional scannable code, similar in function to a traditional bar code that one might find on a product at the supermarket. The main difference between the two is that, while a traditional bar code can hold a maximum of only 20 digits, a QR code can hold up to 7,089 characters, so it can contain much more

  8. Investigating the Use of Quick Response Codes in the Gross Anatomy Laboratory

    ERIC Educational Resources Information Center

    Traser, Courtney J.; Hoffman, Leslie A.; Seifert, Mark F.; Wilson, Adam B.

    2015-01-01

    The use of quick response (QR) codes within undergraduate university courses is on the rise, yet literature concerning their use in medical education is scant. This study examined student perceptions on the usefulness of QR codes as learning aids in a medical gross anatomy course, statistically analyzed whether this learning aid impacted student…

  9. Investigating the Use of Quick Response Codes in the Gross Anatomy Laboratory

    ERIC Educational Resources Information Center

    Traser, Courtney J.; Hoffman, Leslie A.; Seifert, Mark F.; Wilson, Adam B.

    2015-01-01

    The use of quick response (QR) codes within undergraduate university courses is on the rise, yet literature concerning their use in medical education is scant. This study examined student perceptions on the usefulness of QR codes as learning aids in a medical gross anatomy course, statistically analyzed whether this learning aid impacted student

  10. A Learning Environment for English Vocabulary Using Quick Response Codes

    ERIC Educational Resources Information Center

    Arikan, Yuksel Deniz; Ozen, Sevil Orhan

    2015-01-01

    This study focuses on the process of developing a learning environment that uses tablets and Quick Response (QR) codes to enhance participants' English language vocabulary knowledge. The author employed the concurrent triangulation strategy, a mixed research design. The study was conducted at a private school in Izmir, Turkey during the 2012-2013…

  11. Investigating the use of quick response codes in the gross anatomy laboratory.

    PubMed

    Traser, Courtney J; Hoffman, Leslie A; Seifert, Mark F; Wilson, Adam B

    2015-01-01

    The use of quick response (QR) codes within undergraduate university courses is on the rise, yet literature concerning their use in medical education is scant. This study examined student perceptions on the usefulness of QR codes as learning aids in a medical gross anatomy course, statistically analyzed whether this learning aid impacted student performance, and evaluated whether performance could be explained by the frequency of QR code usage. Question prompts and QR codes tagged on cadaveric specimens and models were available for four weeks as learning aids to medical (n?=?155) and doctor of physical therapy (n?=?39) students. Each QR code provided answers to posed questions in the form of embedded text or hyperlinked web pages. Students' perceptions were gathered using a formative questionnaire and practical examination scores were used to assess potential gains in student achievement. Overall, students responded positively to the use of QR codes in the gross anatomy laboratory as 89% (57/64) agreed the codes augmented their learning of anatomy. The users' most noticeable objection to using QR codes was the reluctance to bring their smartphones into the gross anatomy laboratory. A comparison between the performance of QR code users and non-users was found to be nonsignificant (P?=?0.113), and no significant gains in performance (P?=?0.302) were observed after the intervention. Learners welcomed the implementation of QR code technology in the gross anatomy laboratory, yet this intervention had no apparent effect on practical examination performance. PMID:25288343

  12. An introduction to QR Codes: linking libraries and mobile patrons.

    PubMed

    Hoy, Matthew B

    2011-01-01

    QR codes, or "Quick Response" codes, are two-dimensional barcodes that can be scanned by mobile smartphone cameras. These codes can be used to provide fast access to URLs, telephone numbers, and short passages of text. With the rapid adoption of smartphones, librarians are able to use QR codes to promote services and help library users find materials quickly and independently. This article will explain what QR codes are, discuss how they can be used in the library, and describe issues surrounding their use. A list of resources for generating and scanning QR codes is also provided. PMID:21800986

  13. QR Codes: Taking Collections Further

    ERIC Educational Resources Information Center

    Ahearn, Caitlin

    2014-01-01

    With some thought and direction, QR (quick response) codes are a great tool to use in school libraries to enhance access to information. From March through April 2013, Caitlin Ahearn interned at Sanborn Regional High School (SRHS) under the supervision of Pam Harland. As a result of Harland's un-Deweying of the nonfiction collection at SRHS,

  14. QR Codes: Taking Collections Further

    ERIC Educational Resources Information Center

    Ahearn, Caitlin

    2014-01-01

    With some thought and direction, QR (quick response) codes are a great tool to use in school libraries to enhance access to information. From March through April 2013, Caitlin Ahearn interned at Sanborn Regional High School (SRHS) under the supervision of Pam Harland. As a result of Harland's un-Deweying of the nonfiction collection at SRHS,…

  15. What Are Those Checkerboard Things? How Quick Response Codes Can Enrich Student Projects

    ERIC Educational Resources Information Center

    Tucker, Al

    2011-01-01

    Students enrolled in the author's commercial arts program design and publish the school's yearbook. For the 2010-2011 school year, the students applied Quick Response (QR) code technology to include links to events that occurred after the yearbook's print deadline, including graduation. The technology has many applications in the school setting,

  16. Blending Classroom Teaching and Learning with QR Codes

    ERIC Educational Resources Information Center

    Rikala, Jenni; Kankaanranta, Marja

    2014-01-01

    The aim of this case study was to explore the feasibility of the Quick Response (QR) codes and mobile devices in the context of Finnish basic education. The interest was especially to explore how mobile devices and QR codes can enhance and blend teaching and learning. The data were collected with a teacher interview and pupil surveys. The learning

  17. Security printing of covert quick response codes using upconverting nanoparticle inks.

    PubMed

    Meruga, Jeevan M; Cross, William M; Stanley May, P; Luu, QuocAnh; Crawford, Grant A; Kellar, Jon J

    2012-10-01

    Counterfeiting costs governments and private industries billions of dollars annually due to loss of value in currency and other printed items. This research involves using lanthanide doped ?-NaYF(4) nanoparticles for security printing applications. Inks comprised of Yb(3+)/Er(3+) and Yb(3+)/Tm(3+) doped ?-NaYF(4) nanoparticles with oleic acid as the capping agent in toluene and methyl benzoate with poly(methyl methacrylate) (PMMA) as the binding agent were used to print quick response (QR) codes. The QR codes were made using an AutoCAD file and printed with Optomec direct-write aerosol jetting(). The printed QR codes are invisible under ambient lighting conditions, but are readable using a near-IR laser, and were successfully scanned using a smart phone. This research demonstrates that QR codes, which have been used primarily for information sharing applications, can also be used for security purposes. Higher levels of security were achieved by printing both green and blue upconverting inks, based on combinations of Er(3+)/Yb(3+) and Tm(3+)/Yb(3+), respectively, in a single QR code. The near-infrared (NIR)-to-visible upconversion luminescence properties of the two-ink QR codes were analyzed, including the influence of NIR excitation power density on perceived color, in term of the CIE 1931 chromaticity index. It was also shown that this security ink can be optimized for line width, thickness and stability on different substrates. PMID:22968045

  18. Security printing of covert quick response codes using upconverting nanoparticle inks

    NASA Astrophysics Data System (ADS)

    Meruga, Jeevan M.; Cross, William M.; May, P. Stanley; Luu, QuocAnh; Crawford, Grant A.; Kellar, Jon J.

    2012-10-01

    Counterfeiting costs governments and private industries billions of dollars annually due to loss of value in currency and other printed items. This research involves using lanthanide doped ?-NaYF4 nanoparticles for security printing applications. Inks comprised of Yb3+/Er3+ and Yb3+/Tm3+ doped ?-NaYF4 nanoparticles with oleic acid as the capping agent in toluene and methyl benzoate with poly(methyl methacrylate) (PMMA) as the binding agent were used to print quick response (QR) codes. The QR codes were made using an AutoCAD file and printed with Optomec direct-write aerosol jetting. The printed QR codes are invisible under ambient lighting conditions, but are readable using a near-IR laser, and were successfully scanned using a smart phone. This research demonstrates that QR codes, which have been used primarily for information sharing applications, can also be used for security purposes. Higher levels of security were achieved by printing both green and blue upconverting inks, based on combinations of Er3+/Yb3+ and Tm3+/Yb3+, respectively, in a single QR code. The near-infrared (NIR)-to-visible upconversion luminescence properties of the two-ink QR codes were analyzed, including the influence of NIR excitation power density on perceived color, in term of the CIE 1931 chromaticity index. It was also shown that this security ink can be optimized for line width, thickness and stability on different substrates.

  19. Demand Response Quick Assessment Tool

    Energy Science and Technology Software Center (ESTSC)

    2008-12-01

    DRQAT (Demand Response Quick Assessment Tool) is the tool for assessing demand response saving potentials for large commercial buildings. This tool is based on EnergyPlus simulations of prototypical buildings and HVAC equipment. The opportunities for demand reduction and cost savings with building demand responsive controls vary tremendously with building type and location. The assessment tools will predict the energy and demand savings, the economic savings, and the thermal comfor impact for various demand responsive strategies.more » Users of the tools will be asked to enter the basic building information such as types, square footage, building envelope, orientation, utility schedule, etc. The assessment tools will then use the prototypical simulation models to calculate the energy and demand reduction potential under certain demand responsive strategies, such as precooling, zonal temperature set up, and chilled water loop and air loop set points adjustment.« less

  20. Location Based Service in Indoor Environment Using Quick Response Code Technology

    NASA Astrophysics Data System (ADS)

    Hakimpour, F.; Zare Zardiny, A.

    2014-10-01

    Today by extensive use of intelligent mobile phones, increased size of screens and enriching the mobile phones by Global Positioning System (GPS) technology use of location based services have been considered by public users more than ever.. Based on the position of users, they can receive the desired information from different LBS providers. Any LBS system generally includes five main parts: mobile devices, communication network, positioning system, service provider and data provider. By now many advances have been gained in relation to any of these parts; however the users positioning especially in indoor environments is propounded as an essential and critical issue in LBS. It is well known that GPS performs too poorly inside buildings to provide usable indoor positioning. On the other hand, current indoor positioning technologies such as using RFID or WiFi network need different hardware and software infrastructures. In this paper, we propose a new method to overcome these challenges. This method is using the Quick Response (QR) Code Technology. QR Code is a 2D encrypted barcode with a matrix structure which consists of black modules arranged in a square grid. Scanning and data retrieving process from QR Code is possible by use of different camera-enabled mobile phones only by installing the barcode reader software. This paper reviews the capabilities of QR Code technology and then discusses the advantages of using QR Code in Indoor LBS (ILBS) system in comparison to other technologies. Finally, some prospects of using QR Code are illustrated through implementation of a scenario. The most important advantages of using this new technology in ILBS are easy implementation, spending less expenses, quick data retrieval, possibility of printing the QR Code on different products and no need for complicated hardware and software infrastructures.

  1. Research on pre-processing of QR Code

    NASA Astrophysics Data System (ADS)

    Sun, Haixing; Xia, Haojie; Dong, Ning

    2013-10-01

    QR code encodes many kinds of information because of its advantages: large storage capacity, high reliability, full arrange of utter-high-speed reading, small printing size and high-efficient representation of Chinese characters, etc. In order to obtain the clearer binarization image from complex background, and improve the recognition rate of QR code, this paper researches on pre-processing methods of QR code (Quick Response Code), and shows algorithms and results of image pre-processing for QR code recognition. Improve the conventional method by changing the Souvola's adaptive text recognition method. Additionally, introduce the QR code Extraction which adapts to different image size, flexible image correction approach, and improve the efficiency and accuracy of QR code image processing.

  2. Optical information authentication using compressed double-random-phase-encoded images and quick-response codes.

    PubMed

    Wang, Xiaogang; Chen, Wen; Chen, Xudong

    2015-03-01

    In this paper, we develop a new optical information authentication system based on compressed double-random-phase-encoded images and quick-response (QR) codes, where the parameters of optical lightwave are used as keys for optical decryption and the QR code is a key for verification. An input image attached with QR code is first optically encoded in a simplified double random phase encoding (DRPE) scheme without using interferometric setup. From the single encoded intensity pattern recorded by a CCD camera, a compressed double-random-phase-encoded image, i.e., the sparse phase distribution used for optical decryption, is generated by using an iterative phase retrieval technique with QR code. We compare this technique to the other two methods proposed in literature, i.e., Fresnel domain information authentication based on the classical DRPE with holographic technique and information authentication based on DRPE and phase retrieval algorithm. Simulation results show that QR codes are effective on improving the security and data sparsity of optical information encryption and authentication system. PMID:25836845

  3. Use Them ... or Lose Them? The Case for and against Using QR Codes

    ERIC Educational Resources Information Center

    Cunningham, Chuck; Dull, Cassie

    2011-01-01

    A quick-response (QR) code is a two-dimensional, black-and-white square barcode and links directly to a URL of one's choice. When the code is scanned with a smartphone, it will automatically redirect the user to the designated URL. QR codes are popping up everywhere--billboards, magazines, posters, shop windows, TVs, computer screens, and more.

  4. Use Them ... or Lose Them? The Case for and against Using QR Codes

    ERIC Educational Resources Information Center

    Cunningham, Chuck; Dull, Cassie

    2011-01-01

    A quick-response (QR) code is a two-dimensional, black-and-white square barcode and links directly to a URL of one's choice. When the code is scanned with a smartphone, it will automatically redirect the user to the designated URL. QR codes are popping up everywhere--billboards, magazines, posters, shop windows, TVs, computer screens, and more.…

  5. Experimental QR code optical encryption: noise-free data recovering.

    PubMed

    Barrera, John Fredy; Mira-Agudelo, Alejandro; Torroba, Roberto

    2014-05-15

    We report, to our knowledge for the first time, the experimental implementation of a quick response (QR) code as a "container" in an optical encryption system. A joint transform correlator architecture in an interferometric configuration is chosen as the experimental scheme. As the implementation is not possible in a single step, a multiplexing procedure to encrypt the QR code of the original information is applied. Once the QR code is correctly decrypted, the speckle noise present in the recovered QR code is eliminated by a simple digital procedure. Finally, the original information is retrieved completely free of any kind of degradation after reading the QR code. Additionally, we propose and implement a new protocol in which the reception of the encrypted QR code and its decryption, the digital block processing, and the reading of the decrypted QR code are performed employing only one device (smartphone, tablet, or computer). The overall method probes to produce an outcome far more attractive to make the adoption of the technique a plausible option. Experimental results are presented to demonstrate the practicality of the proposed security system. PMID:24978277

  6. Evaluating QR Code Case Studies Using a Mobile Learning Framework

    ERIC Educational Resources Information Center

    Rikala, Jenni

    2014-01-01

    The aim of this study was to evaluate the feasibility of Quick Response (QR) codes and mobile devices in the context of Finnish basic education. The feasibility was analyzed through a mobile learning framework, which includes the core characteristics of mobile learning. The study is part of a larger research where the aim is to develop a…

  7. QR Codes in the Library: "It's Not Your Mother's Barcode!"

    ERIC Educational Resources Information Center

    Dobbs, Cheri

    2011-01-01

    Barcode scanning has become more than just fun. Now libraries and businesses are leveraging barcode technology as an innovative tool to market their products and ideas. Developed and popularized in Japan, these Quick Response (QR) or two-dimensional barcodes allow marketers to provide interactive content in an otherwise static environment. In this

  8. QR Codes in the Library: "It's Not Your Mother's Barcode!"

    ERIC Educational Resources Information Center

    Dobbs, Cheri

    2011-01-01

    Barcode scanning has become more than just fun. Now libraries and businesses are leveraging barcode technology as an innovative tool to market their products and ideas. Developed and popularized in Japan, these Quick Response (QR) or two-dimensional barcodes allow marketers to provide interactive content in an otherwise static environment. In this…

  9. Optical image encryption based on real-valued coding and subtracting with the help of QR code

    NASA Astrophysics Data System (ADS)

    Deng, Xiaopeng

    2015-08-01

    A novel optical image encryption based on real-valued coding and subtracting is proposed with the help of quick response (QR) code. In the encryption process, the original image to be encoded is firstly transformed into the corresponding QR code, and then the corresponding QR code is encoded into two phase-only masks (POMs) by using basic vector operations. Finally, the absolute values of the real or imaginary parts of the two POMs are chosen as the ciphertexts. In decryption process, the QR code can be approximately restored by recording the intensity of the subtraction between the ciphertexts, and hence the original image can be retrieved without any quality loss by scanning the restored QR code with a smartphone. Simulation results and actual smartphone collected results show that the method is feasible and has strong tolerance to noise, phase difference and ratio between intensities of the two decryption light beams.

  10. QR codes: next level of social media.

    PubMed

    Gottesman, Wesley; Baum, Neil

    2013-01-01

    The OR code, which is short for quick response code, system was invented in Japan for the auto industry. Its purpose was to track vehicles during manufacture; it was designed to allow high-speed component scanning. Now the scanning can be easily accomplished via cell phone, making the technology useful and within reach of your patients. There are numerous applications for OR codes in the contemporary medical practice. This article describes QR codes and how they might be applied for marketing and practice management. PMID:23866649

  11. What Are Those Checkerboard Things?: How QR Codes Can Enrich Student Projects

    ERIC Educational Resources Information Center

    Tucker, Al

    2011-01-01

    Students enrolled in commercial arts program design and publish their school's yearbook. For the 2010-2011 school year, the students applied Quick Response (QR) code technology to include links to events that occurred after the yearbook's print deadline, including graduation. The technology has many applications in the school setting, and the

  12. [The QR code in society, economy and medicine--fields of application, options and chances].

    PubMed

    Flaig, Benno; Parzeller, Markus

    2011-01-01

    2D codes like the QR Code ("Quick Response") are becoming more and more common in society and medicine. The application spectrum and benefits in medicine and other fields are described. 2D codes can be created free of charge on any computer with internet access without any previous knowledge. The codes can be easily used in publications, presentations, on business cards and posters. Editors choose between contact details, text or a hyperlink as information behind the code. At expert conferences, linkage by QR Code allows the audience to download presentations and posters quickly. The documents obtained can then be saved, printed, processed etc. Fast access to stored data in the internet makes it possible to integrate additional and explanatory multilingual videos into medical posters. In this context, a combination of different technologies (printed handout, QR Code and screen) may be reasonable. PMID:21805904

  13. DNA Barcode Goes Two-Dimensions: DNA QR Code Web Server

    PubMed Central

    Li, Huan; Xing, Hang; Liang, Dong; Jiang, Kun; Pang, Xiaohui; Song, Jingyuan; Chen, Shilin

    2012-01-01

    The DNA barcoding technology uses a standard region of DNA sequence for species identification and discovery. At present, DNA barcode actually refers to DNA sequences, which are not amenable to information storage, recognition, and retrieval. Our aim is to identify the best symbology that can represent DNA barcode sequences in practical applications. A comprehensive set of sequences for five DNA barcode markers ITS2, rbcL, matK, psbA-trnH, and CO1 was used as the test data. Fifty-three different types of one-dimensional and ten two-dimensional barcode symbologies were compared based on different criteria, such as coding capacity, compression efficiency, and error detection ability. The quick response (QR) code was found to have the largest coding capacity and relatively high compression ratio. To facilitate the further usage of QR code-based DNA barcodes, a web server was developed and is accessible at http://qrfordna.dnsalias.org. The web server allows users to retrieve the QR code for a species of interests, convert a DNA sequence to and from a QR code, and perform species identification based on local and global sequence similarities. In summary, the first comprehensive evaluation of various barcode symbologies has been carried out. The QR code has been found to be the most appropriate symbology for DNA barcode sequences. A web server has also been constructed to allow biologists to utilize QR codes in practical DNA barcoding applications. PMID:22574113

  14. DNA barcode goes two-dimensions: DNA QR code web server.

    PubMed

    Liu, Chang; Shi, Linchun; Xu, Xiaolan; Li, Huan; Xing, Hang; Liang, Dong; Jiang, Kun; Pang, Xiaohui; Song, Jingyuan; Chen, Shilin

    2012-01-01

    The DNA barcoding technology uses a standard region of DNA sequence for species identification and discovery. At present, "DNA barcode" actually refers to DNA sequences, which are not amenable to information storage, recognition, and retrieval. Our aim is to identify the best symbology that can represent DNA barcode sequences in practical applications. A comprehensive set of sequences for five DNA barcode markers ITS2, rbcL, matK, psbA-trnH, and CO1 was used as the test data. Fifty-three different types of one-dimensional and ten two-dimensional barcode symbologies were compared based on different criteria, such as coding capacity, compression efficiency, and error detection ability. The quick response (QR) code was found to have the largest coding capacity and relatively high compression ratio. To facilitate the further usage of QR code-based DNA barcodes, a web server was developed and is accessible at http://qrfordna.dnsalias.org. The web server allows users to retrieve the QR code for a species of interests, convert a DNA sequence to and from a QR code, and perform species identification based on local and global sequence similarities. In summary, the first comprehensive evaluation of various barcode symbologies has been carried out. The QR code has been found to be the most appropriate symbology for DNA barcode sequences. A web server has also been constructed to allow biologists to utilize QR codes in practical DNA barcoding applications. PMID:22574113

  15. Raman spectroscopy: in vivo quick response code of skin physiological status.

    PubMed

    Vyumvuhore, Raoul; Tfayli, Ali; Piot, Olivier; Le Guillou, Maud; Guichard, Nathalie; Manfait, Michel; Baillet-Guffroy, Arlette

    2014-01-01

    Dermatologists need to combine different clinically relevant characteristics for a better understanding of skin health. These characteristics are usually measured by different techniques, and some of them are highly time consuming. Therefore, a predicting model based on Raman spectroscopy and partial least square (PLS) regression was developed as a rapid multiparametric method. The Raman spectra collected from the five uppermost micrometers of 11 healthy volunteers were fitted to different skin characteristics measured by independent appropriate methods (transepidermal water loss, hydration, pH, relative amount of ceramides, fatty acids, and cholesterol). For each parameter, the obtained PLS model presented correlation coefficients higher than R2=0.9. This model enables us to obtain all the aforementioned parameters directly from the unique Raman signature. In addition to that, in-depth Raman analyses down to 20 ?m showed different balances between partially bound water and unbound water with depth. In parallel, the increase of depth was followed by an unfolding process of the proteins. The combinations of all these information led to a multiparametric investigation, which better characterizes the skin status. Raman signal can thus be used as a quick response code (QR code). This could help dermatologic diagnosis of physiological variations and presents a possible extension to pathological characterization. PMID:24839943

  16. Raman spectroscopy: in vivo quick response code of skin physiological status

    NASA Astrophysics Data System (ADS)

    Vyumvuhore, Raoul; Tfayli, Ali; Piot, Olivier; Le Guillou, Maud; Guichard, Nathalie; Manfait, Michel; Baillet-Guffroy, Arlette

    2014-11-01

    Dermatologists need to combine different clinically relevant characteristics for a better understanding of skin health. These characteristics are usually measured by different techniques, and some of them are highly time consuming. Therefore, a predicting model based on Raman spectroscopy and partial least square (PLS) regression was developed as a rapid multiparametric method. The Raman spectra collected from the five uppermost micrometers of 11 healthy volunteers were fitted to different skin characteristics measured by independent appropriate methods (transepidermal water loss, hydration, pH, relative amount of ceramides, fatty acids, and cholesterol). For each parameter, the obtained PLS model presented correlation coefficients higher than R2=0.9. This model enables us to obtain all the aforementioned parameters directly from the unique Raman signature. In addition to that, in-depth Raman analyses down to 20 ?m showed different balances between partially bound water and unbound water with depth. In parallel, the increase of depth was followed by an unfolding process of the proteins. The combinations of all these information led to a multiparametric investigation, which better characterizes the skin status. Raman signal can thus be used as a quick response code (QR code). This could help dermatologic diagnosis of physiological variations and presents a possible extension to pathological characterization.

  17. Embedding QR codes in tumor board presentations, enhancing educational content for oncology information management.

    PubMed

    Siderits, Richard; Yates, Stacy; Rodriguez, Arelis; Lee, Tina; Rimmer, Cheryl; Roche, Mark

    2011-01-01

    Quick Response (QR) Codes are standard in supply management and seen with increasing frequency in advertisements. They are now present regularly in healthcare informatics and education. These 2-dimensional square bar codes, originally designed by the Toyota car company, are free of license and have a published international standard. The codes can be generated by free online software and the resulting images incorporated into presentations. The images can be scanned by "smart" phones and tablets using either the iOS or Android platforms, which link the device with the information represented by the QR code (uniform resource locator or URL, online video, text, v-calendar entries, short message service [SMS] and formatted text). Once linked to the device, the information can be viewed at any time after the original presentation, saved in the device or to a Web-based "cloud" repository, printed, or shared with others via email or Bluetooth file transfer. This paper describes how we use QR codes in our tumor board presentations, discusses the benefits, the different QR codes from Web links and how QR codes facilitate the distribution of educational content. PMID:23270096

  18. QR Code Mania!

    ERIC Educational Resources Information Center

    Shumack, Kellie A.; Reilly, Erin; Chamberlain, Nik

    2013-01-01

    space, has error-correction capacity, and can be read from any direction. These codes are used in manufacturing, shipping, and marketing, as well as in education. QR codes can be created to produce…

  19. Linear systems analysis program, L224(QR). Volume 2: Supplemental system design and maintenance document

    NASA Technical Reports Server (NTRS)

    Heidergott, K. W.

    1979-01-01

    The computer program known as QR is described. Classical control systems analysis and synthesis (root locus, time response, and frequency response) can be performed using this program. Programming details of the QR program are presented.

  20. Aviation System Analysis Capability Quick Response System Report

    NASA Technical Reports Server (NTRS)

    Roberts, Eileen; Villani, James A.; Ritter, Paul

    1998-01-01

    The purpose of this document is to present the additions and modifications made to the Aviation System Analysis Capability (ASAC) Quick Response System (QRS) in FY 1997 in support of the ASAC ORS development effort. This document contains an overview of the project background and scope and defines the QRS. The document also presents an overview of the Logistics Management Institute (LMI) facility that supports the QRS, and it includes a summary of the planned additions to the QRS in FY 1998. The document has five appendices.

  1. QR code for medical information uses.

    PubMed

    Fontelo, Paul; Liu, Fang; Ducut, Erick G

    2008-01-01

    We developed QR code online tools, simulated and tested QR code applications for medical information uses including scanning QR code labels, URLs and authentication. Our results show possible applications for QR code in medicine. PMID:18998785

  2. How much domestic quick response manufacturing can a business afford?

    NASA Astrophysics Data System (ADS)

    Warburton, Roger D. H.; Warner, Steven B.

    2000-10-01

    Employment in the U.S. apparel industry has declined dramatically since the 1960s. Will it fall inexorably to zero, or is there some base level that can endure? If so, what strategic characteristics are required to survive? There is considerable interest in Quick Response Manufacturing (QRM), not only as a reason to support domestic manufacturing, but also as part of the larger goal of reducing supply chain costs. However, since Domestic Manufacturing is more expensive, why should anyone bother considering it? This paper presents an analytical model of a team approach that includes both domestic and offshore manufacturing. Despite the additional costs associated with U.S. manufacturing, our model predicts that including a domestic contractor is legitimate and cost effective. However, the alliance must be genuinely cooperative. A partnership has to be established early in the retailer's planning cycle, and the manufacturer should participate in the planning. Also, sharing data and making timely decisions imposes a strategic business approach, and the model allows us to describe the characteristic roles and capabilities required. Using this model for guidance, we anticipate that retailers will have the stock to satisfy more customers with fewer markdowns, while manufacturers will see increased margins and lower inventories.

  3. Disaster Mitigation by Quick Response Against Strong Earthquake Motion

    NASA Astrophysics Data System (ADS)

    Nakamura, Y.

    2007-12-01

    The concept of EEW, earthquake early warning, was reported on San Francisco Daily Evening Bulletin on 3rd November 1868 by Dr. Cooper first for San Francisco area. According to him this idea was triggered by a failure of earthquake prediction. It is impressive that the thinking way is same as present. In 1982 more than 100 years later, the warning system for Tohoku Shinkansen realized the Cooper's idea for the first time on the world. After that, SAS for Mexico City started operating in 1991, and UrEDAS for Tokaido Shinkansen, an evolutional P-wave detection/warning system, began to operate in 1992. The UrEDAS technology is based on new concepts and methods to realize a real time system for estimating the earthquake parameters as magnitude, location and depth. In Japan at 1992, a new information service using UrEDAS technology had been prepared, but it was not born due to objection of JMA, Japan Meteorological Agency. By the same JMA, an information service, so called "Kinkyu Jishin Sokuho", will be broadcasted in nation wide from the first of October 2007. This implies that our UrEDAS Information Service plan has been correct, and it is my pleasure. However, it shall be rare case in Japan that JMA's information will reach faster than arriving of M7 class or less earthquake at the possible damaged areas, because it takes a time relatively long for processing and transmitting. Only for M8 class earthquakes of which the occurrence probability is about once in ten years in Japan, it is possible to receive the information before arriving of strong shaking in a possible damaged area far from the epicenter. JMA should popularize "Kinkyu Jishin Sokuho" after understandable explanation of these facts. I'm afraid that it will mislead people to broadcast a film on an evacuation training in unbelievable condition which is assuming an earthquake of seismic intensity 7 (corresponding to MMI scale XII) arriving 20 seconds later. Anyway, we can rely only on the onsite alarm in focal area. Accurate and quick earthquake information just after shaking is more useful than the late early warning. And I hope public organizations to make best effort that they can announce the earthquake information not only for main shock but also aftershocks, because these information is quite important for the quick response.

  4. Three-dimensional polarization marked multiple-QR code encryption by optimizing a single vectorial beam

    NASA Astrophysics Data System (ADS)

    Lin, Chao; Shen, Xueju; Hua, Binbin; Wang, Zhisong

    2015-10-01

    We demonstrate the feasibility of three dimensional (3D) polarization multiplexing by optimizing a single vectorial beam using a multiple-signal window multiple-plane (MSW-MP) phase retrieval algorithm. Original messages represented with multiple quick response (QR) codes are first partitioned into a series of subblocks. Then, each subblock is marked with a specific polarization state and randomly distributed in 3D space with both longitudinal and transversal adjustable freedoms. A generalized 3D polarization mapping protocol is established to generate a 3D polarization key. Finally, multiple-QR code is encrypted into one phase only mask and one polarization only mask based on the modified Gerchberg-Saxton (GS) algorithm. We take the polarization mask as the cyphertext and the phase only mask as additional dimension of key. Only when both the phase key and 3D polarization key are correct, original messages can be recovered. We verify our proposal with both simulation and experiment evidences.

  5. Quick-response servo amplifies small hydraulic pressure differences

    NASA Technical Reports Server (NTRS)

    Wiegard, D. E.

    1966-01-01

    Hydraulic servo, which quickly diverts fluid to either of two actuators, controls the flow rates and pressures within a hydraulic system so that the output force of the servo system is independent of the velocity of the mechanism which the system actuates. This servo is a dynamic feedback control device.

  6. 7 CFR 1486.206 - What is the Quick Response Marketing Fund?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false What is the Quick Response Marketing Fund? 1486.206... Eligibility, Applications, and Funding § 1486.206 What is the Quick Response Marketing Fund? (a) This fund was... responsiveness to time-sensitive marketing problems or opportunities, such as a change in an import regime or...

  7. 7 CFR 1486.206 - What is the Quick Response Marketing Fund?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 10 2013-01-01 2013-01-01 false What is the Quick Response Marketing Fund? 1486.206... Funding 1486.206 What is the Quick Response Marketing Fund? (a) This fund was established to address... time-sensitive marketing problems or opportunities, such as a change in an import regime or the...

  8. Aviation System Analysis Capability Quick Response System Report for Fiscal Year 1998

    NASA Technical Reports Server (NTRS)

    Ege, Russell; Villani, James; Ritter, Paul

    1999-01-01

    This document presents the additions and modifications made to the Quick Response System (QRS) in FY 1998 in support of the ASAC QRS development effort. this Document builds upon the Aviation System Analysis Capability Quick Responses System Report for Fiscal Year 1997.

  9. 77 FR 17462 - Notice of Submission for OMB Review; Institute of Education Sciences; Quick Response Information...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-26

    ...The National Center for Education Statistics (NCES) Quick Response Information System (QRIS) consists of the Fast Response Survey System (FRSS) and the Postsecondary Education Quick Information System (PEQIS). The QRIS currently conducts surveys under OMB generic clearance 1850-0733, which expires in June 2012. This submission requests approval to continue the current clearance conditions......

  10. Durability of switchable QR code carriers under hydrolytic and photolytic conditions

    NASA Astrophysics Data System (ADS)

    Ecker, Melanie; Pretsch, Thorsten

    2013-09-01

    Following a guest diffusion approach, the surface of a shape memory poly(ester urethane) (PEU) was either black or blue colored. Bowtie-shaped quick response (QR) code carriers were then obtained from laser engraving and cutting, before thermo-mechanical functionalization (programming) was applied to stabilize the PEU in a thermo-responsive (switchable) state. The stability of the dye within the polymer surface and long-term functionality of the polymer were investigated against UVA and hydrolytic ageing. Spectrophotometric investigations verified UVA ageing-related color shifts from black to yellow-brownish and blue to petrol-greenish whereas hydrolytically aged samples changed from black to greenish and blue to light blue. In the case of UVA ageing, color changes were accompanied by dye decolorization, whereas hydrolytic ageing led to contrast declines due to dye diffusion. The Michelson contrast could be identified as an effective tool to follow ageing-related contrast changes between surface-dyed and laser-ablated (undyed) polymer regions. As soon as the Michelson contrast fell below a crucial value of 0.1 due to ageing, the QR code was no longer decipherable with a scanning device. Remarkably, the PEU information carrier base material could even then be adequately fixed and recovered. Hence, the surface contrast turned out to be the decisive parameter for QR code carrier applicability.

  11. 7 CFR 1486.206 - What is the Quick Response Marketing Fund?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 10 2012-01-01 2012-01-01 false What is the Quick Response Marketing Fund? 1486.206 Section 1486.206 Agriculture Regulations of the Department of Agriculture (Continued) COMMODITY CREDIT CORPORATION, DEPARTMENT OF AGRICULTURE EXPORT PROGRAMS EMERGING MARKETS PROGRAM Eligibility, Applications, and Funding 1486.206 What is the...

  12. 7 CFR 1486.206 - What is the Quick Response Marketing Fund?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 10 2014-01-01 2014-01-01 false What is the Quick Response Marketing Fund? 1486.206 Section 1486.206 Agriculture Regulations of the Department of Agriculture (Continued) COMMODITY CREDIT CORPORATION, DEPARTMENT OF AGRICULTURE EXPORT PROGRAMS EMERGING MARKETS PROGRAM Eligibility, Applications, and Funding 1486.206 What is the...

  13. Aviation System Analysis Capability Quick Response System Report Server User's Guide

    NASA Technical Reports Server (NTRS)

    Roberts, Eileen R.; Villani, James A.; Wingrove, Earl R., III

    1996-01-01

    This report is a user's guide for the Aviation System Analysis Capability Quick Response System (ASAC QRS) Report Server. The ASAC QRS is an automated online capability to access selected ASAC models and data repositories. It supports analysis by the aviation community. This system was designed by the Logistics Management Institute for the NASA Ames Research Center. The ASAC QRS Report Server allows users to obtain information stored in the ASAC Data Repositories.

  14. Utility of QR codes in biological collections.

    PubMed

    Diazgranados, Mauricio; Funk, Vicki A

    2013-01-01

    The popularity of QR codes for encoding information such as URIs has increased exponentially in step with the technological advances and availability of smartphones, digital tablets, and other electronic devices. We propose using QR codes on specimens in biological collections to facilitate linking vouchers' electronic information with their associated collections. QR codes can efficiently provide such links for connecting collections, photographs, maps, ecosystem notes, citations, and even GenBank sequences. QR codes have numerous advantages over barcodes, including their small size, superior security mechanisms, increased complexity and quantity of information, and low implementation cost. The scope of this paper is to initiate an academic discussion about using QR codes on specimens in biological collections. PMID:24198709

  15. Utility of QR codes in biological collections

    PubMed Central

    Diazgranados, Mauricio; Funk, Vicki A.

    2013-01-01

    Abstract The popularity of QR codes for encoding information such as URIs has increased exponentially in step with the technological advances and availability of smartphones, digital tablets, and other electronic devices. We propose using QR codes on specimens in biological collections to facilitate linking vouchers electronic information with their associated collections. QR codes can efficiently provide such links for connecting collections, photographs, maps, ecosystem notes, citations, and even GenBank sequences. QR codes have numerous advantages over barcodes, including their small size, superior security mechanisms, increased complexity and quantity of information, and low implementation cost. The scope of this paper is to initiate an academic discussion about using QR codes on specimens in biological collections. PMID:24198709

  16. Manual technique for quick-response evaluation of exclusive with-flow bus lanes

    SciTech Connect

    Pas, E.I.

    1982-01-01

    The first phase of research into the development of manual aids for quick-response evaluation of exclusive high occupancy vehicle lanes is described. The general approach taken is outlined and a macroscopic equilibrium model is formulated for the analysis of the travel time and energy impacts of an exclusive with-flow bus lane on a freeway segment. The resulting user-oriented aid and its use are described and an example application is provided. General inferences are drawn regarding the impacts of exclusive with-flow bus lanes on urban freeways. The sensitivity of the results to particular model parameters is investigated. 9 refs.

  17. Quick Detection of FKS1 Mutations Responsible for Clinical Echinocandin Resistance in Candida albicans.

    PubMed

    Dudiuk, Catiana; Gamarra, Soledad; Jimenez-Ortigosa, Cristina; Leonardelli, Florencia; Macedo, Daiana; Perlin, David S; Garcia-Effron, Guillermo

    2015-07-01

    A rapid molecular-based assay for the detection of the Candida albicans FKS1 gene mutations responsible for resistance to echinocandin drugs was designed and evaluated. The assay consisted of a multiplexed PCR set of 5 tubes able to detect the most commonly described resistance mechanism, including FKS1 hot spot 1 and hot spot 2 mutations. The performance and specificity of the assay was evaluated using a double-blinded panel of 50 C. albicans strains. The assay showed a sensitivity of 96% and was able to detect all homozygous mutants included in the collection of strains, demonstrating that it is a robust, quick, and labor-saving method that is suitable for a routine clinical diagnostic laboratory. PMID:25878347

  18. Aviation System Analysis Capability (ASAC) Quick Response System (QRS) Test Report

    NASA Technical Reports Server (NTRS)

    Roberts, Eileen; Villani, James A.; Ritter, Paul

    1997-01-01

    This document is the Aviation System Analysis Capability (ASAC) Quick Response System (QRS) Test Report. The purpose of this document is to present the results of the QRS unit and system tests in support of the ASAC QRS development effort. This document contains an overview of the project background and scope, defines the QRS system and presents the additions made to the QRS this year, explains the assumptions, constraints, and approach used to conduct QRS Unit and System Testing, and presents the schedule used to perform QRS Testing. The document also presents an overview of the Logistics Management Institute (LMI) Test Facility and testing environment and summarizes the QRS Unit and System Test effort and results.

  19. Pharmacogenomics in the pocket of every patient? A prototype based on quick response codes

    PubMed Central

    Samwald, Matthias; Adlassnig, Klaus-Peter

    2013-01-01

    A sizable fraction of patients experiences adverse drug events or lack of drug efficacy. A part of this variability in drug response can be explained by genetic differences between patients. However, pharmacogenomic data as well as computational clinical decision support systems for interpreting such data are still unavailable in most healthcare settings. We address this problem by introducing the medicine safety code (MSC), which captures compressed pharmacogenomic data in a two-dimensional barcode that can be carried in a patient's wallet. We successfully encoded data about 385 genetic polymorphisms in MSC and were able to decode and interpret MSC quickly with common mobile devices. The MSC could make individual pharmacogenomic data and decision support available in a wide variety of healthcare settings without the set up of large-scale infrastructures or centralized databases. PMID:23345409

  20. Quick Detection of FKS1 Mutations Responsible for Clinical Echinocandin Resistance in Candida albicans

    PubMed Central

    Dudiuk, Catiana; Gamarra, Soledad; Jimenez-Ortigosa, Cristina; Leonardelli, Florencia; Macedo, Daiana; Perlin, David S.

    2015-01-01

    A rapid molecular-based assay for the detection of the Candida albicans FKS1 gene mutations responsible for resistance to echinocandin drugs was designed and evaluated. The assay consisted of a multiplexed PCR set of 5 tubes able to detect the most commonly described resistance mechanism, including FKS1 hot spot 1 and hot spot 2 mutations. The performance and specificity of the assay was evaluated using a double-blinded panel of 50 C. albicans strains. The assay showed a sensitivity of 96% and was able to detect all homozygous mutants included in the collection of strains, demonstrating that it is a robust, quick, and labor-saving method that is suitable for a routine clinical diagnostic laboratory. PMID:25878347

  1. A Quick Test of cognitive speed is sensitive in detecting early treatment response in Alzheimer's disease

    PubMed Central

    2010-01-01

    Introduction There is a great need for quick tests that identify treatment response in Alzheimer's disease (AD) to determine who benefits from the treatment. In this study, A Quick Test of cognitive speed (AQT) was compared with the mini-mental state examination (MMSE) in the evaluation of treatment outcome in AD. Methods 75 patients with mild to moderate AD at a memory clinic were assessed with AQT and the MMSE at a pretreatment visit, at baseline and after 8 weeks of treatment with cholinesterase inhibitors (ChEI) initiated at baseline. Changes in the mean test scores before and after treatment were compared, as well as the number of treatment responders detected by each test, according to a reliable change index (RCI). Results After 8 weeks of treatment, the AQT improvement, expressed as a percentage, was significantly greater than that of the MMSE (P = 0.026). According to the RCI, the cut-offs to define a responder were ?16 seconds improvement on AQT and ?3 points on the MMSE after 8 weeks. With these cut-offs, both tests falsely classified ?5% as responders during the pretreatment period. After 8 weeks of treatment, AQT detected significantly more responders than the MMSE (34% compared with 17%; P = 0.024). After 6 months of treatment, the 8-week AQT responders still showed a significantly better treatment response than the AQT nonresponders (22.3 seconds in mean difference; P < 0.001). Conclusions AQT detects twice as many treatment responders as the MMSE. It seems that AQT can, already after 8 weeks, identify the AD patients who will continue to benefit from ChEI treatment. PMID:20950460

  2. A Quick Response Forecasting Model of Pathogen Transport and Inactivation in Near-shore Regions

    NASA Astrophysics Data System (ADS)

    Liu, L.; Fu, X.

    2011-12-01

    Modeling methods supporting water quality assessments play a critical role by facilitating people to understand and promptly predict the potential threat of waterborne bacterial pathogens pose to human health. A mathematical model to describe and predict bacterial levels can provide foundation for water managers in making decisions on whether a water system is safe to open to the public. The inactivation (decay or die-off) rate of bacteria is critical in a bacterial model by controlling bacterial concentration in waters and depends on numerous factors of hydrodynamics, meteorology, geology, chemistry and biology. Transport and fate of waterborne pathogens in fresh water systems is an essentially three-dimensional problem, which requires a coupling of hydrodynamic equations and transport equations that describe the pathogen and suspended sediment dynamics. However, such an approach could be very demanding and time consuming from a practical point of view due to excess computational efforts. Long computation time may lead people unintentionally drinking or swimming in the contaminated water during the period before the predictive results of water quality come out. Therefore, it is very necessary to find a quick-response model to forecast bacterial concentration instantly to protect human health without any delay. Nearshore regions are the most commonly and directly used area for people in a huge water system. The prior multi-dimensional investigations of E. Coli and Enterococci inactivation in literature indicate that along-shore current predominated the nearshore region. Consequently, the complex dynamic conditions may be potentially simplified to one-dimensional scenario. In this research, a one-dimensional model system coupling both hydrodynamic and bacterial transport modules is constructed considering different complex processes to simulate the transport and fate of pathogens in nearshore regions. The quick-response model mainly focuses on promptly forecasting purpose and will be verified and calibrated with the available data collected from southern Lake Michigan. The modeling results will be compared with those from prior multi-dimensional models. This model is specifically effective for the outfall-controlled waters, where pathogens are primarily predominated by loadings from nearby tributaries and tend to show wide variations in concentrations.

  3. A quick response four decade logarithmic high-voltage stepping supply

    NASA Technical Reports Server (NTRS)

    Doong, H.

    1978-01-01

    An improved high-voltage stepping supply, for space instrumentation is described where low power consumption and fast settling time between steps are required. The high-voltage stepping supply, utilizing an average power of 750 milliwatts, delivers a pair of mirror images with 64 level logarithmic outputs. It covers a four decade range of + or - 2500 to + or - 0.29 volts having an output stability of + or - 0.5 percent or + or - 20 millivolts for all line load and temperature variations. The supply provides a typical step setting time of 1 millisecond with 100 microseconds for the lower two decades. The versatile design features of the high-voltage stepping supply provides a quick response staircase generator as described or a fixed voltage with the option to change levels as required over large dynamic ranges without circuit modifications. The concept can be implemented up to + or - 5000 volts. With these design features, the high-voltage stepping supply should find numerous applications where charged particle detection, electro-optical systems, and high voltage scientific instruments are used.

  4. Static excitation test results of the partial rotor model for 70 MW class superconducting generator with quick response excitation

    SciTech Connect

    Nakamura, H.; Matsumoto, H.; Hasegawa, H.; Nakanishi, K.; Inoue, K.; Sakai, M.; Ohshima, S.

    1996-07-01

    The development of superconducting generators has been progressing in Japan since 1988 as a part of the New Sunshine Project of the Agency of Industrial Science Technology. Toshiba has been in charge of research and development of the quick response excitation type superconducting generator in the project. The authors are manufacturing the partial rotor model, which has the same rotor diameter and shorter winding length comparing with the 70 MW class quick response model machine. They assembled completely the inner rotor and carried out its excitation test in a cryostat. In this paper, they report the test result of heater quench, quench current, training, and pulse excitation.

  5. Quick Compare

    Energy Science and Technology Software Center (ESTSC)

    2000-01-10

    Quick Compare is a computer software application that helps a user quickly evaluate alternatives based on criteria and decide on a preferred alternative. The software leads a user through a simple process of defining alternatives and criteria. Then, one person or a group can score the alternatives based on the criteria. The results are immediately displayed in an easy-to-understand graphical output.

  6. A QR code based zero-watermarking scheme for authentication of medical images in teleradiology cloud.

    PubMed

    Seenivasagam, V; Velumani, R

    2013-01-01

    Healthcare institutions adapt cloud based archiving of medical images and patient records to share them efficiently. Controlled access to these records and authentication of images must be enforced to mitigate fraudulent activities and medical errors. This paper presents a zero-watermarking scheme implemented in the composite Contourlet Transform (CT)-Singular Value Decomposition (SVD) domain for unambiguous authentication of medical images. Further, a framework is proposed for accessing patient records based on the watermarking scheme. The patient identification details and a link to patient data encoded into a Quick Response (QR) code serves as the watermark. In the proposed scheme, the medical image is not subjected to degradations due to watermarking. Patient authentication and authorized access to patient data are realized on combining a Secret Share with the Master Share constructed from invariant features of the medical image. The Hu's invariant image moments are exploited in creating the Master Share. The proposed system is evaluated with Checkmark software and is found to be robust to both geometric and non geometric attacks. PMID:23970943

  7. A QR Code Based Zero-Watermarking Scheme for Authentication of Medical Images in Teleradiology Cloud

    PubMed Central

    Seenivasagam, V.; Velumani, R.

    2013-01-01

    Healthcare institutions adapt cloud based archiving of medical images and patient records to share them efficiently. Controlled access to these records and authentication of images must be enforced to mitigate fraudulent activities and medical errors. This paper presents a zero-watermarking scheme implemented in the composite Contourlet Transform (CT)—Singular Value Decomposition (SVD) domain for unambiguous authentication of medical images. Further, a framework is proposed for accessing patient records based on the watermarking scheme. The patient identification details and a link to patient data encoded into a Quick Response (QR) code serves as the watermark. In the proposed scheme, the medical image is not subjected to degradations due to watermarking. Patient authentication and authorized access to patient data are realized on combining a Secret Share with the Master Share constructed from invariant features of the medical image. The Hu's invariant image moments are exploited in creating the Master Share. The proposed system is evaluated with Checkmark software and is found to be robust to both geometric and non geometric attacks. PMID:23970943

  8. Quick concurrent responses to global and local cognitive information underlie intuitive understanding in board-game experts

    PubMed Central

    Nakatani, Hironori; Yamaguchi, Yoko

    2014-01-01

    Experts have the superior cognitive capability of quickly understanding complex information in their domain; however, little is known about the neural processes underlying this ability. Here, using a board game named shogi (Japanese chess), we investigated the brain activity in expert players that was involved in their quick understanding of board-game patterns. The frontal area responded only to meaningful game positions, whereas the temporal area responded to both game and random positions with the same latency (200?ms). Subsequent to these quick responses, the temporal and parietal areas responded only to game positions, with a latency of 700?ms. During the responses, enhanced phase synchronization between these areas was observed. Thus, experts first responded to global cognitive information that was specific to game positions and to local cognitive information that was common to game and random positions concurrently. These types of information were integrated via neural synchronization at the posterior areas. As these properties were specific to experts, much of the experts' advantage in understanding game positions occurred within 1?s of perception. PMID:25081320

  9. Quick concurrent responses to global and local cognitive information underlie intuitive understanding in board-game experts.

    PubMed

    Nakatani, Hironori; Yamaguchi, Yoko

    2014-01-01

    Experts have the superior cognitive capability of quickly understanding complex information in their domain; however, little is known about the neural processes underlying this ability. Here, using a board game named shogi (Japanese chess), we investigated the brain activity in expert players that was involved in their quick understanding of board-game patterns. The frontal area responded only to meaningful game positions, whereas the temporal area responded to both game and random positions with the same latency (200 ms). Subsequent to these quick responses, the temporal and parietal areas responded only to game positions, with a latency of 700 ms. During the responses, enhanced phase synchronization between these areas was observed. Thus, experts first responded to global cognitive information that was specific to game positions and to local cognitive information that was common to game and random positions concurrently. These types of information were integrated via neural synchronization at the posterior areas. As these properties were specific to experts, much of the experts' advantage in understanding game positions occurred within 1 s of perception. PMID:25081320

  10. Ink-constrained halftoning with application to QR codes

    NASA Astrophysics Data System (ADS)

    Bayeh, Marzieh; Compaan, Erin; Lindsey, Theodore; Orlow, Nathan; Melczer, Stephen; Voller, Zachary

    2014-01-01

    This paper examines adding visually significant, human recognizable data into QR codes without affecting their machine readability by utilizing known methods in image processing. Each module of a given QR code is broken down into pixels, which are halftoned in such a way as to keep the QR code structure while revealing aspects of the secondary image to the human eye. The loss of information associated to this procedure is discussed, and entropy values are calculated for examples given in the paper. Numerous examples of QR codes with embedded images are included.

  11. Modeling of Qr Sensors for Optimized Explosives Detection

    NASA Astrophysics Data System (ADS)

    Robert, Hector; Bussandri, Alejandro; Derby, Kevin

    Quadrupole Resonance (QR) sensors have the unique capability of detecting explosives with remarkably high detection rates and low number of false alarms. The sensitivity of a QR-based sensor in inductive detection can be assessed in terms of the signal-to-noise ratio (SNR), which determines the Receiver Operating Characteristics (ROC) curves of the detector and provides a fundamental limitation to the performance of the QR explosive detection system. The main goal of the QR sensor design is, therefore, to maximize the SNR to achieve the highest possible detection performance with the lowest number of nuisances.

  12. Interventions to Improve Responses of Helping Professionals to Intimate Partner Violence: A Quick Scoping Review

    ERIC Educational Resources Information Center

    Choi, Y. Joon; An, Soonok

    2016-01-01

    Objective: The purpose of the study is to systematically review the available evidence on the effectiveness of interventions to improve the response of various helping professionals who come into contact with female victims of intimate partner violence (IPV). Methods: Several databases were searched, and N = 38 studies met the inclusion criteria…

  13. Quick-Response Thermal Actuator for Use as a Heat Switch

    NASA Technical Reports Server (NTRS)

    Cepeda-Rizo, Juan

    2010-01-01

    This work improves the performance of a heat switch, or a thermal actuator, by delivering heat to the actuator in a more efficient manner. The method uses a heat pipe as the plunger or plug instead of just using a solid piece of metal. The heat pipe could be one tailored for fast transient thermal response.

  14. Interventions to Improve Responses of Helping Professionals to Intimate Partner Violence: A Quick Scoping Review

    ERIC Educational Resources Information Center

    Choi, Y. Joon; An, Soonok

    2016-01-01

    Objective: The purpose of the study is to systematically review the available evidence on the effectiveness of interventions to improve the response of various helping professionals who come into contact with female victims of intimate partner violence (IPV). Methods: Several databases were searched, and N = 38 studies met the inclusion criteria

  15. [Behavior of free catecholamines in blood and urine of ambulance men and physicians during quick responses].

    PubMed

    Lehmann, M; Drges, V; Huber, G; Zllner, G; Spri, U; Keul, J

    1983-01-01

    Free urine adrenaline, noradrenaline, (additional free plasma catecholamines in the physicians), and blood lactate were determined in 11 ambulance men and 5 physicians to assess stress during medical service. Stress was evaluated employing a stress index, based on difficulties in driving, traffic, severity of injuries or illness. Emergency cases with seriously injured subjects or reanimation were judged to have a 4-fold higher stress index than routine cases where strong physiological or psychological stress was absent. Urine catecholamines and stress indices were estimated in 3-h intervals. The calculations were based on the stress induced catecholamine concentrations minus the basal excretion during the same 3-h interval. Urine adrenaline and noradrenaline in ambulance men and physicians correlated directly with the stress index, as well as the plasma catecholamines of the physicians. Lactate levels showed similar behaviour and a descriptive direct correlation with the plasma catecholamines. Urine adrenaline increased more--dependent on the stress index--than urine noradrenaline. This over-proportional adrenaline response may be an indicator for the additional psychological stress in emergency cases. Therefore physicians showed--based on the same stress index--a tendency to higher urine adrenaline excretion and blood lactate levels than the ambulance men, which might be the consequence of the overall responsibility of the physicians. Because of the observed catecholamine responses during medical service, coronary insufficiency or hypertension might be contra-indications for participation in the medical service; regular clinical investigations including ergometric tests are advisable. PMID:6852928

  16. A quick and robust method for quantification of the hypersensitive response in plants

    PubMed Central

    Gustavsson, Mikael B.; Backhaus, Thomas; Andersson, Mats X.

    2015-01-01

    One of the most studied defense reactions of plants against microbial pathogens is the hypersensitive response (HR). The HR is a complex multicellular process that involves programmed cell death at the site of infection. A standard method to quantify plant defense and the HR is to measure the release of cellular electrolytes into water after infiltration with pathogenic bacteria. In this type of experiment, the bacteria are typically delivered into the plant tissue through syringe infiltration. Here we report the development of a vacuum infiltration protocol that allows multiple plant lines to be infiltrated simultaneously and assayed for defense responses. Vacuum infiltration did not induce more wounding response in Arabidopsis leaf tissue than syringe inoculation, whereas throughput and reproducibility were improved. The method was used to study HR-induced electrolyte loss after treatment with the bacterium Pseudomonas syringae pv. tomato DC3000 harboring the effector AvrRpm1, AvrRpt2 or AvrRps4. Specifically, the influence of bacterial titer on AvrRpm1-induced HR was investigated. Not only the amplitude, but also the timing of the maximum rate of the HR reaction was found to be dose-dependent. Finally, using vacuum infiltration, we were able quantify induction of phospholipase D activity after AvrRpm1 recognition in leaves labeled with 33PO4. PMID:26734506

  17. Through-Wall Image Enhancement Using Fuzzy and QR Decomposition

    PubMed Central

    2014-01-01

    QR decomposition and fuzzy logic based scheme is proposed for through-wall image enhancement. QR decomposition is less complex compared to singular value decomposition. Fuzzy inference engine assigns weights to different overlapping subspaces. Quantitative measures and visual inspection are used to analyze existing and proposed techniques. PMID:24711726

  18. 40 CFR Appendixes Q-R to Part 51 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 2 2010-07-01 2010-07-01 false Q Appendixes Q-R to Part 51 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF IMPLEMENTATION PLANS Appendixes Q-R to Part 51...

  19. A dasymetric data supported earthquake disaster loss quick assessment method for emergency response in China

    NASA Astrophysics Data System (ADS)

    Xu, J.; An, J.; Nie, G.

    2015-02-01

    Improving earthquake disaster loss estimation speed and accuracy is one of key factors in effective earthquake response and rescue. The presentation of exposure data by applying a dasymetric map approach has good potential for addressing this issue. With the support of 30'' 30'' areal exposure data (population and building data in China), this paper presents a new two-phase earthquake disaster loss estimation method for emergency response situations. This method has two phases: a pre-earthquake phase and a co-earthquake phase. In the pre-earthquake phase, we pre-calculate the earthquake loss related to different seismic intensities and store them in a 30'' 30'' grid format, which has four stages: determining the earthquake loss calculation factor, gridding possible damage matrixes, the building damage calculation and the people loss calculation. The dasymetric map approach makes this possible. Then, in the co-earthquake phase, there are two stages of estimating loss: generating a theoretical isoseismal map to depict the spatial distribution of the seismic intensity field; then, using the seismic intensity field to extract statistics of disaster loss from pre-calculated loss estimation data to obtain the final estimation results. The method is validated by four actual earthquakes that occurred in China. The method not only significant improves the speed and accuracy of loss estimation, but gives spatial distribution for the loss, which will be effective in aiding earthquake emergency response and rescue. Additionally, related pre-calculated earthquake loss estimation data in China could serve to provide disaster risk analysis before earthquakes happen. Currently, the pre-calculated loss estimation data and the two-phase estimation method are used by the China Earthquake Administration.

  20. QR-decomposition based lattice filter algorithms

    NASA Astrophysics Data System (ADS)

    Proudler, I. K.; McWhirter, J. G.; Shepherd, T. J.

    1989-11-01

    A new lattice filter algorithm for adaptive filtering is presented. In common with other lattice algorithms for adaptive filtering, this algorithm only requires 0(p) operations for the solution of a p-th order problem. The algorithm is derived from the QR-decomposition (QRD) based recursive least squares minimisation algorithm and hence is expected to have superior numerical properties compared with other fast algorithms. This algorithm contains within it a new algo-rithm for solving the least squares linear prediction problem. The algorithms are presented in two forms: one that in-volves taking square-roots and one that does not. Some preliminary computer simulation results are presented that in-dicate that the output residuals produced by the new, fast adaptive filtering algorithm are in good agreement with those from the more established, 0(p2) QRD recursive least squares minimisation algorithm.

  1. Reconstructing householder vectors from Tall-Skinny QR

    SciTech Connect

    Ballard, Grey Malone; Demmel, James; Grigori, Laura; Jacquelin, Mathias; Knight, Nicholas; Nguyen, Hong Diep

    2015-08-05

    The Tall-Skinny QR (TSQR) algorithm is more communication efficient than the standard Householder algorithm for QR decomposition of matrices with many more rows than columns. However, TSQR produces a different representation of the orthogonal factor and therefore requires more software development to support the new representation. Further, implicitly applying the orthogonal factor to the trailing matrix in the context of factoring a square matrix is more complicated and costly than with the Householder representation. We show how to perform TSQR and then reconstruct the Householder vector representation with the same asymptotic communication efficiency and little extra computational cost. We demonstrate the high performance and numerical stability of this algorithm both theoretically and empirically. The new Householder reconstruction algorithm allows us to design more efficient parallel QR algorithms, with significantly lower latency cost compared to Householder QR and lower bandwidth and latency costs compared with Communication-Avoiding QR (CAQR) algorithm. Experiments on supercomputers demonstrate the benefits of the communication cost improvements: in particular, our experiments show substantial improvements over tuned library implementations for tall-and-skinny matrices. Furthermore, we also provide algorithmic improvements to the Householder QR and CAQR algorithms, and we investigate several alternatives to the Householder reconstruction algorithm that sacrifice guarantees on numerical stability in some cases in order to obtain higher performance.

  2. Reconstructing householder vectors from Tall-Skinny QR

    DOE PAGESBeta

    Ballard, Grey Malone; Demmel, James; Grigori, Laura; Jacquelin, Mathias; Knight, Nicholas; Nguyen, Hong Diep

    2015-08-05

    The Tall-Skinny QR (TSQR) algorithm is more communication efficient than the standard Householder algorithm for QR decomposition of matrices with many more rows than columns. However, TSQR produces a different representation of the orthogonal factor and therefore requires more software development to support the new representation. Further, implicitly applying the orthogonal factor to the trailing matrix in the context of factoring a square matrix is more complicated and costly than with the Householder representation. We show how to perform TSQR and then reconstruct the Householder vector representation with the same asymptotic communication efficiency and little extra computational cost. We demonstratemore » the high performance and numerical stability of this algorithm both theoretically and empirically. The new Householder reconstruction algorithm allows us to design more efficient parallel QR algorithms, with significantly lower latency cost compared to Householder QR and lower bandwidth and latency costs compared with Communication-Avoiding QR (CAQR) algorithm. Experiments on supercomputers demonstrate the benefits of the communication cost improvements: in particular, our experiments show substantial improvements over tuned library implementations for tall-and-skinny matrices. Furthermore, we also provide algorithmic improvements to the Householder QR and CAQR algorithms, and we investigate several alternatives to the Householder reconstruction algorithm that sacrifice guarantees on numerical stability in some cases in order to obtain higher performance.« less

  3. Evaluation of an electrocardiogram on QR code.

    PubMed

    Nakayama, Masaharu; Shimokawa, Hiroaki

    2013-01-01

    An electrocardiogram (ECG) is an indispensable tool to diagnose cardiac diseases, such as ischemic heart disease, myocarditis, arrhythmia, and cardiomyopathy. Since ECG patterns vary depend on patient status, it is also used to monitor patients during treatment and comparison with ECGs with previous results is important for accurate diagnosis. However, the comparison requires connection to ECG data server in a hospital and the availability of data connection among hospitals is limited. To improve the portability and availability of ECG data regardless of server connection, we here introduce conversion of ECG data into 2D barcodes as text data and decode of the QR code for drawing ECG with Google Chart API. Fourteen cardiologists and six general physicians evaluated the system using iPhone and iPad. Overall, they were satisfied with the system in usability and accuracy of decoded ECG compared to the original ECG. This new coding system may be useful in utilizing ECG data irrespective of server connections. PMID:23920794

  4. The impact of aging on the spatial accuracy of quick corrective arm movements in response to sudden target displacement during reaching

    PubMed Central

    Kimura, Daisuke; Kadota, Koji; Kinoshita, Hiroshi

    2015-01-01

    Age-related declines in visuomotor processing speed can have a large impact on motor performance in elderly individuals. Contrary to previous findings, however, recent studies revealed that elderly individuals are able to quickly react to displacement of a visual target during reaching. Here, we investigated the influence of aging on quick, corrective responses to perturbations during reaching in the terms of their functional contribution to accuracy. Elderly and young adults performed reaching movements to a visual target that could be displaced during reaching, and they were requested to move their hand to reach the final target location as quickly as possible. Results showed that, for the younger group, the variance in the directional error of the corrective response correlated with the variance in the reaching trajectory at the halfway point of the reach, but the correlation decreased at the end of the reaching. On the other hand, such correlations were not significant in elderly participants, although the variance of the directional error did not show a significant difference between age groups. Thus, the quick, corrective response seems to play an important role in decreasing variability, especially before the end of reaching, and aging can impair this process. PMID:26441641

  5. Two-dimensional QR-coded metamaterial absorber

    NASA Astrophysics Data System (ADS)

    Sui, Sai; Ma, Hua; Wang, Jiafu; Pang, Yongqiang; Zhang, Jieqiu; Qu, Shaobo

    2016-01-01

    In this paper, the design of metamaterial absorbers is proposed based on QR coding and topology optimization. Such absorbers look like QR codes and can be recognized by decoding softwares as well as mobile phones. To verify the design, two lightweight wideband absorbers are designed, which can achieve wideband absorption above 90 % in 6.68-19.30 and 7.00-19.70 GHz, respectively. More importantly, polarization-independent absorption over 90 % can be maintained under incident angle within 55°. The QR code absorber not only can achieve wideband absorption, but also can carry information such as texts and Web sites. They are of important values in applications such identification and electromagnetic protection.

  6. The College Recruiters' Quick Guide

    ERIC Educational Resources Information Center

    Holleman, Dewey

    2005-01-01

    The College Recruiters' Quick Guide provides an orientation to Recruitment responsibilities for new admissions professionals and those contemplating a career in college admissions. It is organized to give the reader a quick orientation and down-to-earth advice about what is involved in the admissions profession. This short publication defines the

  7. Responsiveness of the QuickDASH and SF-12 in workers with neck or upper extremity musculoskeletal disorders: one-year follow-up.

    PubMed

    Fan, Z Joyce; Smith, Caroline K; Silverstein, Barbara A

    2011-06-01

    INTRODUCTION Questionnaires that measure functional status such as the Disability of the Arm, Shoulder and Hand (QuickDASH) and the Medical Outcomes Study 12-item Short-Form Health Survey (SF-12) can quantify the impact of health on performance. Little is known about whether these questionnaires can be used as a tool for measuring disabilities among workers. We compare the responsiveness of these two functional status questionnaires to changes in clinical outcomes of neck or upper extremity musculoskeletal disorders (UEMSD) among active workers in a longitudinal study. METHODS We evaluated the effect size (ES) and standardized response means (SRM) of the QuickDASH and the SF-12 for 148 workers who were divided into four subgroups based on the diagnosis status change between baseline and 1-year visit. RESULTS The ES and SRM for QuickDASH scores were 0.6/0.6 for the 50 subjects who became incident symptomatic neck or UEMSD cases, 1.3/1.0 for the 18 subjects who became incident clinical cases of neck or UEMSD, -1.0/-1.1 for the 46 subjects who recovered from having neck or UEMSD symptoms, and -1.1/-1.1 for the 34 subjects who recovered from being neck or UEMSD clinical cases. The correspondent ES/SRM for the QuickDASH work module were 0.4/0.3, 0.7/0.5, -0.6/-0.4, and -1.0/-0.8, respectively. The correspondent ES/SRM for the physical component scores of SF-12 (PCS12) for the four subgroups were 0.2/0.2, -0.9/-0.6, 0.3/0.2, and 0.3/0.3, respectively. CONCLUSIONS The QuickDASH scores were responsive to changes among active workers who were neck or UEMSD symptomatic or clinical case. PCS12 scores were sufficient only for use in clinical case status change. PMID:20890643

  8. QR Codes as Finding Aides: Linking Electronic and Print Library Resources

    ERIC Educational Resources Information Center

    Kane, Danielle; Schneidewind, Jeff

    2011-01-01

    As part of a focused, methodical, and evaluative approach to emerging technologies, QR codes are one of many new technologies being used by the UC Irvine Libraries. QR codes provide simple connections between print and virtual resources. In summer 2010, a small task force began to investigate how QR codes could be used to provide information and

  9. Nested image steganography scheme using QR-barcode technique

    NASA Astrophysics Data System (ADS)

    Chen, Wen-Yuan; Wang, Jing-Wein

    2009-05-01

    In this paper, QR bar code and image processing techniques are used to construct a nested steganography scheme. There are two types of secret data (lossless and lossy) embedded into a cover image. The lossless data is text that is first encoded by the QR barcode; its data does not have any distortion when comparing with the extracted data and original data. The lossy data is a kind of image; the face image is suitable for our case. Because the extracted text is lossless, the error correction rate of QR encoding must be carefully designed. We found a 25% error correction rate is suitable for our goal. In image embedding, because it can sustain minor perceptible distortion, we thus adopted the lower nibble byte discard of the face image to reduce the secret data. When the image is extracted, we use a median filter to filter out the noise and obtain a smoother image quality. After simulation, it is evident that our scheme is robust to JPEG attacks. Compared to other steganography schemes, our proposed method has three advantages: (i) the nested scheme is an enhanced security system never previously developed; (ii) our scheme can conceal lossless and lossy secret data into a cover image simultaneously; and (iii) the QR barcode used as secret data can widely extend this method's application fields.

  10. Algorithm based on symmetry for locating the finder pattern of the QR code

    NASA Astrophysics Data System (ADS)

    Hu, Donghong; Chen, Xinmeng; Yu, Dan; Liu, Weina; Mei, Bin

    2006-10-01

    The symbology of the QR Code and the traditional techniques for recognizing the finder pattern of the QR Code were introduced and the disadvantages of these techniques were analyzed. Based on the symmetry of the finder pattern of the QR Code, an algorithm for locating the center of the finder pattern was proposed. By this algorithm, the center of the finder pattern of the QR Code can be located accurately even though one module of the QR Code image occupies only 2.8 pixels or the image is skewed seriously or the image is illuminated not uniformly.

  11. The differentially regulated genes TvQR1 and TvPirin of the parasitic plant Triphysaria exhibit distinctive natural allelic diversity

    PubMed Central

    2013-01-01

    Background Plant parasitism represents an extraordinary interaction among flowering plants: parasitic plants use a specialized organ, the haustorium, to invade the host vascular system to deprive host plants of water and nutrients. Various compounds present in exudates of host plants trigger haustorium development. The two most effective haustorium inducing factors (HIFs) known for the parasitic plant Triphysaria versicolor (T. versicolor) are peonidin, an antioxidant flavonoid, and 2,6-dimethoxybenzoquinone (DMBQ), an oxidative stress agent. To date, two genes involved in haustorium initiation in T. versicolor have been identified: TvQR1, a quinone oxidoreductase that generates the active HIF from DMBQ, and TvPirin, a transcription co-factor that regulates several other DMBQ- responsive and non-responsive genes. While the expression of these genes in response to DMBQ is well characterized, their expression in response to peonidin is not. In addition, the pattern of polymorphisms in these genes is unknown, even though nucleotide changes in TvQR1 and TvPirin may have contributed to the ability of T. versicolor to develop haustoria. To gain insights into these aspects, we investigated their transcriptional responses to HIFs and non-HIF and their natural nucleotide diversity. Results Here we show that TvQR1 and TvPirin are transcriptionally upregulated by both DMBQ and peonidin in T. versicolor roots. Yet, while TvQR1 also responded to juglone, a non-HIF quinone with toxicity comparable to that of DMBQ, TvPirin did not. We further demonstrate that TvPirin encodes a protein shorter than the one previously reported. In the T. versicolor natural population of Northern California, TvQR1 exhibited remarkably higher molecular diversity and more recombination events than TvPirin, with the highest non-synonymous substitution rate in the substrate recognition and catalytic domain of the TvQR1 protein. Conclusion Our results suggest that TvQR1 and TvPirin have most likely evolved highly distinct roles for haustorium formation. Unlike TvPirin, TvQR1 might have been under diversifying selection to maintain a diverse collection of polymorphisms, which might be related to the recognition of an assortment of HIF and non-HIF quinones as substrates for successful haustorial establishment in a wide range of host plants. PMID:23419068

  12. Melatonin inhibits granulocyte adhesion to ICAM via MT3/QR2 and MT2 receptors.

    PubMed

    Černyšiov, Vitalij; Mauricas, Mykolas; Girkontaite, Irute

    2015-12-01

    Neutrophils are cells of the innate immune system that first respond and arrive to the site of infection. Melatonin modulates acute inflammatory responses by interfering with leukocyte recruitment. It is known that melatonin modulates granulocyte migration though the endothelial layer thereby acting on the endothelial cell. Here we investigated whether melatonin could modulate granulocyte infiltration by acting directly on granulocytes. Granulocyte infiltration into the peritoneal cavity was investigated in mice kept at normal light/dark conditions and mice kept under constant lighting. To induce migration of neutrophils from the blood into the injury site via the endothelial layer, a bacterial product N-formyl-l-methionyl- l-leucyl- l-phenylalanine (fMLP) was injected into the peritoneal cavity. We found that the number of infiltrated granulocytes during the dark time was lower than that during the light time. It did not depend on circadian time. Moreover, the expression of an adhesion molecule, CD18, on granulocytes, was also lower during the dark time as compared with the light time. We have found that melatonin inhibited fMLP-induced CD18 up-regulation. Importantly, melatonin also inhibited the integrin-mediated granulocyte adhesion to intercellular adhesion molecule-coated plates. This study additionally showed that melatonin receptors MT2 and MT3/quinone reductase 2 (QR2) are expressed on granulocytes. Interestingly, melatonin increases the expression of its MT3/QR2 receptor. The fMLP-mediated CD18 up-regulation was inhibited by melatonin via MT2 receptor and the integrin-mediated granulocyte adhesion was inhibited by melatonin via MT3/QR2 and MT2 receptors. In conclusion, we show that melatonin suppresses granulocyte migration via endothelium by acting directly on granulocytes. PMID:26031343

  13. Automatic Blocking Of QR and LU Factorizations for Locality

    SciTech Connect

    Yi, Q; Kennedy, K; You, H; Seymour, K; Dongarra, J

    2004-03-26

    QR and LU factorizations for dense matrices are important linear algebra computations that are widely used in scientific applications. To efficiently perform these computations on modern computers, the factorization algorithms need to be blocked when operating on large matrices to effectively exploit the deep cache hierarchy prevalent in today's computer memory systems. Because both QR (based on Householder transformations) and LU factorization algorithms contain complex loop structures, few compilers can fully automate the blocking of these algorithms. Though linear algebra libraries such as LAPACK provides manually blocked implementations of these algorithms, by automatically generating blocked versions of the computations, more benefit can be gained such as automatic adaptation of different blocking strategies. This paper demonstrates how to apply an aggressive loop transformation technique, dependence hoisting, to produce efficient blockings for both QR and LU with partial pivoting. We present different blocking strategies that can be generated by our optimizer and compare the performance of auto-blocked versions with manually tuned versions in LAPACK, both using reference BLAS, ATLAS BLAS and native BLAS specially tuned for the underlying machine architectures.

  14. QUICK FACTS (CENSUS)

    EPA Science Inventory

    Quick, easy access to facts about people, business, and geography. QuickFacts tables are summary profiles showing frequently requested data items from various Census Bureau programs. Profiles are available at the national, state, and county level.

  15. Computationally Efficient Adaptive Beamformer for Ultrasound Imaging Based on QR Decomposition.

    PubMed

    Park, Jongin; Wi, Seok-Min; Lee, Jin S

    2016-02-01

    Adaptive beamforming methods for ultrasound imaging have been studied to improve image resolution and contrast. The most common approach is the minimum variance (MV) beamformer which minimizes the power of the beamformed output while maintaining the response from the direction of interest constant. The method achieves higher resolution and better contrast than the delay-and-sum (DAS) beamformer, but it suffers from high computational cost. This cost is mainly due to the computation of the spatial covariance matrix and its inverse, which requires O(L(3)) computations, where L denotes the subarray size. In this study, we propose a computationally efficient MV beamformer based on QR decomposition. The idea behind our approach is to transform the spatial covariance matrix to be a scalar matrix σI and we subsequently obtain the apodization weights and the beamformed output without computing the matrix inverse. To do that, QR decomposition algorithm is used and also can be executed at low cost, and therefore, the computational complexity is reduced to O(L(2)). In addition, our approach is mathematically equivalent to the conventional MV beamformer, thereby showing the equivalent performances. The simulation and experimental results support the validity of our approach. PMID:26742130

  16. Quick response PZT/P(VDF-TrFE) composite film pyroelectric infrared sensor with patterned polyimide thermal isolation layer

    NASA Astrophysics Data System (ADS)

    Wu, C. G.; Li, P.; Cai, G. Q.; Luo, W. B.; Sun, X. Y.; Peng, Q. X.; Zhang, W. L.

    2014-09-01

    The fabrication method and the pyroelectric response of a single element infrared sensor based lead zirconate titanate (PZT) particles and polyvinylidene fluoride P(VDF-TrFE) copolymer composite thick film is reported in this paper. A special thermal insulation structure, including polyimide (PI) thermal insulation layer and thermal insulation tanks, was used in this device. The thermal insulation tanks were fabricated by laser micro-etching technique. Voltage responsivity (RV), noise voltage (Vnoise), noise equivalent power (NEP), and detectivity (D*) of the PZT/P(VDF-TrFE) based infrared sensor are 1.2 × 103 V/W, 1.25 × 10-6 V Hz1/2, 1.1 × 10-9 W and 1.9 × 108 cm Hz1/2 W-1 at 137.3 Hz modulation frequency, respectively. The thermal time constant of the infrared sensor τT was about 15 ms. The results demonstrate that the composite infrared sensor show a high detectivity at high chopper frequency, which is an essential advantage in infrared detectors and some other devices.

  17. A Regularization Approach to Blind Deblurring and Denoising of QR Barcodes

    NASA Astrophysics Data System (ADS)

    van Gennip, Yves; Athavale, Prashant; Gilles, Jerome; Choksi, Rustum

    2015-09-01

    QR bar codes are prototypical images for which part of the image is a priori known (required patterns). Open source bar code readers, such as ZBar, are readily available. We exploit both these facts to provide and assess purely regularization-based methods for blind deblurring of QR bar codes in the presence of noise.

  18. A Regularization Approach to Blind Deblurring and Denoising of QR Barcodes.

    PubMed

    van Gennip, Yves; Athavale, Prashant; Gilles, Jrme; Choksi, Rustum

    2015-09-01

    QR bar codes are prototypical images for which part of the image is a priori known (required patterns). Open source bar code readers, such as ZBar, are readily available. We exploit both these facts to provide and assess purely regularization-based methods for blind deblurring of QR bar codes in the presence of noise. PMID:25974935

  19. Supporting Situated Learning Based on QR Codes with Etiquetar App: A Pilot Study

    ERIC Educational Resources Information Center

    Camacho, Miguel Olmedo; Prez-Sanagustn, Mar; Alario-Hoyos, Carlos; Soldani, Xavier; Kloos, Carlos Delgado; Sayago, Sergio

    2014-01-01

    EtiquetAR is an authoring tool for supporting the design and enactment of situated learning experiences based on QR tags. Practitioners use etiquetAR for creating, managing and personalizing collections of QR codes with special properties: (1) codes can have more than one link pointing at different multimedia resources, (2) codes can be updated

  20. EPA QUICK REFERENCE GUIDES

    EPA Science Inventory

    EPA Quick Reference Guides are compilations of information on chemical and biological terrorist agents. The information is presented in consistent format and includes agent characteristics, release scenarios, health and safety data, real-time field detection, effect levels, samp...

  1. Quick fuzzy backpropagation algorithm.

    PubMed

    Nikov, A; Stoeva, S

    2001-03-01

    A modification of the fuzzy backpropagation (FBP) algorithm called QuickFBP algorithm is proposed, where the computation of the net function is significantly quicker. It is proved that the FBP algorithm is of exponential time complexity, while the QuickFBP algorithm is of polynomial time complexity. Convergence conditions of the QuickFBP, resp. the FBP algorithm are defined and proved for: (1) single output neural networks in case of training patterns with different targets; and (2) multiple output neural networks in case of training patterns with equivalued target vector. They support the automation of the weights training process (quasi-unsupervised learning) establishing the target value(s) depending on the network's input values. In these cases the simulation results confirm the convergence of both algorithms. An example with a large-sized neural network illustrates the significantly greater training speed of the QuickFBP rather than the FBP algorithm. The adaptation of an interactive web system to users on the basis of the QuickFBP algorithm is presented. Since the QuickFBP algorithm ensures quasi-unsupervised learning, this implies its broad applicability in areas of adaptive and adaptable interactive systems, data mining, etc. applications. PMID:11316236

  2. Quick connect fastener

    NASA Technical Reports Server (NTRS)

    Weddendorf, Bruce (Inventor)

    1994-01-01

    A quick connect fastener and method of use is presented wherein the quick connect fastener is suitable for replacing available bolts and screws, the quick connect fastener being capable of installation by simply pushing a threaded portion of the connector into a member receptacle hole, the inventive apparatus being comprised of an externally threaded fastener having a threaded portion slidably mounted upon a stud or bolt shaft, wherein the externally threaded fastener portion is expandable by a preloaded spring member. The fastener, upon contact with the member receptacle hole, has the capacity of presenting cylindrical threads of a reduced diameter for insertion purposes and once inserted into the receiving threads of the receptacle member hole, are expandable for engagement of the receptacle hole threads forming a quick connect of the fastener and the member to be fastened, the quick connect fastener can be further secured by rotation after insertion, even to the point of locking engagement, the quick connect fastener being disengagable only by reverse rotation of the mated thread engagement.

  3. High performance optical encryption based on computational ghost imaging with QR code and compressive sensing technique

    NASA Astrophysics Data System (ADS)

    Zhao, Shengmei; Wang, Le; Liang, Wenqiang; Cheng, Weiwen; Gong, Longyan

    2015-10-01

    In this paper, we propose a high performance optical encryption (OE) scheme based on computational ghost imaging (GI) with QR code and compressive sensing (CS) technique, named QR-CGI-OE scheme. N random phase screens, generated by Alice, is a secret key and be shared with its authorized user, Bob. The information is first encoded by Alice with QR code, and the QR-coded image is then encrypted with the aid of computational ghost imaging optical system. Here, measurement results from the GI optical system's bucket detector are the encrypted information and be transmitted to Bob. With the key, Bob decrypts the encrypted information to obtain the QR-coded image with GI and CS techniques, and further recovers the information by QR decoding. The experimental and numerical simulated results show that the authorized users can recover completely the original image, whereas the eavesdroppers can not acquire any information about the image even the eavesdropping ratio (ER) is up to 60% at the given measurement times. For the proposed scheme, the number of bits sent from Alice to Bob are reduced considerably and the robustness is enhanced significantly. Meantime, the measurement times in GI system is reduced and the quality of the reconstructed QR-coded image is improved.

  4. Polarization demultiplexing by recursive least squares constant modulus algorithm based on QR decomposition

    NASA Astrophysics Data System (ADS)

    Ling, Zhao; Yeling, Wang; Guijun, Hu; Yunpeng, Cui; Jian, Shi; Li, Li

    2013-07-01

    Recursive least squares constant modulus algorithm based on QR decomposition (QR-RLS-CMA) is first proposed as the polarization demultiplexing method. We compare its performance with the stochastic gradient descent constant modulus algorithm (SGD-CMA) and the recursive least squares constant modulus algorithm (RLS-CMA) in a polarization-division-multiplexing system with coherent detection. It is demonstrated that QR-RLS-CMA is an efficient demultiplexing algorithm which can avoid the problem of step-length choice in SGD-CMA. Meanwhile, it also has better symbol error rate (SER) performance and more stable convergence property.

  5. Quick-Connect Nut

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Marshall Space Flight Center (MSFC) has developed a specially-designed nut, called the Quick-Connect Nut, for quick and easy assembly of components in the harsh environment of space, as in assembly of International Space Station. The design permits nuts to be installed simply by pushing them onto standard bolts, then giving a quick twist. To remove, they are unscrewed like conventional nuts. Possible applications include the mining industry for erecting support barriers, assembling underwater oil drilling platforms, fire-fighting equipment, scaffolding, assembly-line machinery, industrial cranes, and even changing lug nuts on race cars. The speed of assembly can make the difference between life and death in different aspects of life on Earth.

  6. Quick Information Sheets.

    ERIC Educational Resources Information Center

    Wisconsin Univ., Madison. Trace Center.

    This compilation of "Trace Quick Sheets" provides descriptions, prices, and ordering information for products and services that assist with communication, control, and computer access for disabled individuals. Product descriptions or product sources are included for: adaptive toys and toy modifications; head pointers, light pointers, and…

  7. Quick Information Sheets.

    ERIC Educational Resources Information Center

    Wisconsin Univ., Madison. Trace Center.

    This compilation of "Trace Quick Sheets" provides descriptions, prices, and ordering information for products and services that assist with communication, control, and computer access for disabled individuals. Product descriptions or product sources are included for: adaptive toys and toy modifications; head pointers, light pointers, and

  8. Optical encryption and QR codes: secure and noise-free information retrieval.

    PubMed

    Barrera, John Fredy; Mira, Alejandro; Torroba, Roberto

    2013-03-11

    We introduce for the first time the concept of an information "container" before a standard optical encrypting procedure. The "container" selected is a QR code which offers the main advantage of being tolerant to pollutant speckle noise. Besides, the QR code can be read by smartphones, a massively used device. Additionally, QR code includes another secure step to the encrypting benefits the optical methods provide. The QR is generated by means of worldwide free available software. The concept development probes that speckle noise polluting the outcomes of normal optical encrypting procedures can be avoided, then making more attractive the adoption of these techniques. Actual smartphone collected results are shown to validate our proposal. PMID:23482108

  9. Fast heap transform-based QR-decomposition of real and complex matrices: algorithms and codes

    NASA Astrophysics Data System (ADS)

    Grigoryan, Artyom M.

    2015-03-01

    In this paper, we describe a new look on the application of Givens rotations to the QR-decomposition problem, which is similar to the method of Householder transformations. We apply the concept of the discrete heap transform, or signal-induced unitary transforms which had been introduced by Grigoryan (2006) and used in signal and image processing. Both cases of real and complex nonsingular matrices are considered and examples of performing QR-decomposition of square matrices are given. The proposed method of QR-decomposition for the complex matrix is novel and differs from the known method of complex Givens rotation and is based on analytical equations for the heap transforms. Many examples illustrated the proposed heap transform method of QR-decomposition are given, algorithms are described in detail, and MATLAB-based codes are included.

  10. Single-intensity-recording optical encryption technique based on phase retrieval algorithm and QR code

    NASA Astrophysics Data System (ADS)

    Wang, Zhi-peng; Zhang, Shuai; Liu, Hong-zhao; Qin, Yi

    2014-12-01

    Based on phase retrieval algorithm and QR code, a new optical encryption technology that only needs to record one intensity distribution is proposed. In this encryption process, firstly, the QR code is generated from the information to be encrypted; and then the generated QR code is placed in the input plane of 4-f system to have a double random phase encryption. For only one intensity distribution in the output plane is recorded as the ciphertext, the encryption process is greatly simplified. In the decryption process, the corresponding QR code is retrieved using phase retrieval algorithm. A priori information about QR code is used as support constraint in the input plane, which helps solve the stagnation problem. The original information can be recovered without distortion by scanning the QR code. The encryption process can be implemented either optically or digitally, and the decryption process uses digital method. In addition, the security of the proposed optical encryption technology is analyzed. Theoretical analysis and computer simulations show that this optical encryption system is invulnerable to various attacks, and suitable for harsh transmission conditions.

  11. Phenolic derivatives from soy flour ethanol extract are potent in vitro quinone reductase (QR) inducing agents.

    PubMed

    Bolling, Bradley W; Parkin, Kirk L

    2008-11-26

    The fractionation of soy flour directed by a cellular bioassay for induction of phase 2 detoxification enzymes was used to identify quinone reductase (QR) inducing agents. A phospholipid-depleted, 80% methanol-partitioned isolate from a crude ethanol extract of soy flour was resolved using normal phase medium-pressure liquid chromatography (MPLC). Early eluting fractions were found to be the most potent QR inducing agents among the separated fractions. Fraction 2 was the most potent, doubling QR at <2 mug/mL. Further fractionation of this isolate led to the identification of several constituents. Fatty acids and sn-1 and sn-2 monoacylglycerols were identified, but were not highly potent QR inducers. Benzofuran-3-carbaldehyde, 4-hydroxybenzaldeyde, 4-ethoxybenzoic acid, 4-ethoxycinnamic acid, benzofuran-2-carboxylic ethyl ester, and ferulic acid ethyl ester (FAEE) were also identified as QR inducing constituents of this fraction. FAEE was the most potent of the identified constituents, doubling QR specific activity at 3.2 muM in the cellular bioassay. PMID:18956872

  12. Quick stop device

    DOEpatents

    Hipwell, Roger L. (35 Hounds Ditch La., Duxbury, MA 02332); Hazelton, Andrew J. (3877 Army St., San Francisco, CA 94131)

    1996-01-01

    A quick stop device for abruptly interrupting the cutting of a workpiece by a cutter is disclosed. The quick stop device employs an outer housing connected to an inner workpiece holder by at least one shear pin. The outer housing includes an appropriate shank designed to be received in the spindle of a machine, such as a machine tool. A cutter, such as a drill bit, is mounted in a stationary position and the workpiece, mounted to the workpiece holder, is rotated during engagement with the cutter. A trigger system includes at least one spring loaded punch disposed for movement into engagement with the workpiece holder to abruptly stop rotation of the workpiece holder. This action shears the shear pin and permits continued rotation of the spindle and outer housing without substantially disturbing the chip root formed during cutting.

  13. Quick-release medical tape

    PubMed Central

    Laulicht, Bryan; Langer, Robert; Karp, Jeffrey M.

    2012-01-01

    Medical tape that provides secure fixation of life-sustaining and -monitoring devices with quick, easy, damage-free removal represents a longstanding unmet medical need in neonatal care. During removal of current medical tapes, crack propagation occurs at the adhesiveskin interface, which is also the interface responsible for device fixation. By designing quick-release medical tape to undergo crack propagation between the backing and adhesive layers, we decouple removal and device fixation, enabling dual functionality. We created an ordered adhesive/antiadhesive composite intermediary layer between the medical tape backing and adhesive for which we achieve tunable peel removal force, while maintaining high shear adhesion to secure medical devices. We elucidate the relationship between the spatial ordering of adhesive and antiadhesive regions to create a fully tunable system that achieves strong device fixation and quick, easy, damage-free device removal. We also described ways of neutralizing the residual adhesive on the skin and have observed that thick continuous films of adhesive are easier to remove than the thin islands associated with residual adhesive left by current medical tapes. PMID:23112196

  14. Characterization of a gC1qR from the giant freshwater prawn, Macrobrachium rosenbergii.

    PubMed

    Ye, Ting; Huang, Xin; Wang, Xian-Wei; Shi, Yan-Ru; Hui, Kai-Min; Ren, Qian

    2015-03-01

    gC1qR, as a multicompartmental and a multifunctional protein, plays an important role in innate immunity. In this study, a gC1qR homolog (MrgC1qR) in the giant freshwater prawn, Macrobrachium rosenbergii was identified. MrgC1qR, a 258-amino-acid polypeptide, shares high identities with gC1qR from other species. MrgC1qR gene was expressed in different tissues and was highest expressed in the hepatopancreas. In addition, the MrgC1qR transcript was significantly enhanced after 6 h of white spot syndrome virus (WSSV) infection or post 2 h, 24 h of Vibrio anguillarum challenge compared to appropriate controls. Moreover, recombinant MrgC1qR (rMrgC1qR) had bacterial binding activity, the result also revealed that rMrgC1qR could bind pathogen-associated molecular patterns (PAMPs) such as LPS or PGN, suggesting that MrgC1qRmight function as a pathogen-recognition receptor (PRR). Furthermore, glutathione S-transferase (GST) pull-down assays showed that rMrgC1qR with GST-tag could bind to rMrFicolin1 or rMrFicolin2 with His-tag. Altogether, these results may demonstrate a role for MrgC1qR in innate immunity in the giant freshwater prawns. PMID:25555810

  15. Lithographically encoded polymer microtaggant using high-capacity and error-correctable QR code for anti-counterfeiting of drugs.

    PubMed

    Han, Sangkwon; Bae, Hyung Jong; Kim, Junhoi; Shin, Sunghwan; Choi, Sung-Eun; Lee, Sung Hoon; Kwon, Sunghoon; Park, Wook

    2012-11-20

    A QR-coded microtaggant for the anti-counterfeiting of drugs is proposed that can provide high capacity and error-correction capability. It is fabricated lithographically in a microfluidic channel with special consideration of the island patterns in the QR Code. The microtaggant is incorporated in the drug capsule ("on-dose authentication") and can be read by a simple smartphone QR Code reader application when removed from the capsule and washed free of drug. PMID:22930454

  16. QDPHOT: Quick & Dirty PHOTometry

    NASA Astrophysics Data System (ADS)

    Mighell, Kenneth

    2016-01-01

    QDPHOT is a fast CCD stellar photometry task which quickly produces CCD stellar photometry from two CCD images of a star field. It was designed to be a data mining tool for finding high-quality stellar observations in the data archives of the National Virtual Observatory. QDPHOT typically takes just a few seconds to analyze two Hubble Space Telescope WFPC2 observations of Local Group star clusters. It is also suitable for real-time data-quality analysis of CCD observations; on-the-fly instrumental color-magnitude diagrams can be produced at the telescope console during the few seconds between CCD readouts.

  17. Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval

    NASA Astrophysics Data System (ADS)

    Trejos, Sorayda; Fredy Barrera, John; Torroba, Roberto

    2015-08-01

    We present for the first time an optical encryptingdecrypting protocol for recovering messages without speckle noise. This is a digital holographic technique using a 2f scheme to process QR codes entries. In the procedure, letters used to compose eventual messages are individually converted into a QR code, and then each QR code is divided into portions. Through a holographic technique, we store each processed portion. After filtering and repositioning, we add all processed data to create a single pack, thus simplifying the handling and recovery of multiple QR code images, representing the first multiplexing procedure applied to processed QR codes. All QR codes are recovered in a single step and in the same plane, showing neither cross-talk nor noise problems as in other methods. Experiments have been conducted using an interferometric configuration and comparisons between unprocessed and recovered QR codes have been performed, showing differences between them due to the involved processing. Recovered QR codes can be successfully scanned, thanks to their noise tolerance. Finally, the appropriate sequence in the scanning of the recovered QR codes brings a noiseless retrieved message. Additionally, to procure maximum security, the multiplexed pack could be multiplied by a digital diffuser as to encrypt it. The encrypted pack is easily decoded by multiplying the multiplexing with the complex conjugate of the diffuser. As it is a digital operation, no noise is added. Therefore, this technique is threefold robust, involving multiplexing, encryption, and the need of a sequence to retrieve the outcome.

  18. Expand the Internet standard to the DICOM standard: DICOM-QR URL scheme

    NASA Astrophysics Data System (ADS)

    Sakusabe, Takaya; Baatar, Shirchin; Kimura, Michio

    1998-07-01

    Recently, a DICOM-compliant image server application (Query/Retrieve Service Class Provider; Q/R SCP) is available commercially or freely in small or large scale. It is better to use these products as an image management sub system of sophisticated image networking applications such as a teaching file system and electric clinical patient record exchange. We describe a new facility to construct medical image database systems using Query/Retrieve Service Class applications. We propose a new Internet Standard; DICOM-QR URL scheme. It is an expansion of the URL (Uniform Resource Locator) standard to comply the DICOM standard. The DICOM-QR URL conveys the complete information to access to the specified images on the Q/R SCP. It is encoded into the compact ASCII string that is easily stored in fields of relational databases or text documents. Finally, we propose that the DICOM-QR URL scheme should be standardized following the Internet Standards Process and we propose many colleagues to join the process.

  19. Improving performance of channel equalization in RSOA-based WDM-PON by QR decomposition.

    PubMed

    Li, Xiang; Zhong, Wen-De; Alphones, Arokiaswami; Yu, Changyuan; Xu, Zhaowen

    2015-10-19

    In reflective semiconductor optical amplifier (RSOA)-based wavelength division multiplexed passive optical network (WDM-PON), the bit rate is limited by low modulation bandwidth of RSOAs. To overcome the limitation, we apply QR decomposition in channel equalizer (QR-CE) to achieve successive interference cancellation (SIC) for discrete Fourier transform spreading orthogonal frequency division multiplexing (DFT-S OFDM) signal. Using an RSOA with a 3-dB modulation bandwidth of only ~800 MHz, we experimentally demonstrate a 15.5-Gb/s over 20-km SSMF DFT-S OFDM transmission with QR-CE. The experimental results show that DFTS-OFDM with QR-CE attains much better BER performance than DFTS-OFDM and OFDM with conventional channel equalizers. The impacts of several parameters on QR-CE are investigated. It is found that 2 sub-bands in one OFDM symbol and 1 pilot in each sub-band are sufficient to achieve optimal performance and maintain the high spectral efficiency. PMID:26480390

  20. Quick release engine cylinder

    DOEpatents

    Sunnarborg, Duane A. (1123 Lucille St., Livermore, Alameda County, CA 94550)

    2000-01-01

    A quick release engine cylinder allows optical access to an essentially unaltered combustion chamber, is suitable for use with actual combustion processes, and is amenable to rapid and repeated disassembly and cleaning. A cylinder member, adapted to constrain a piston to a defined path through the cylinder member, sealingly engages a cylinder head to provide a production-like combustion chamber. A support member mounts with the cylinder member. The support-to-cylinder mounting allows two relationships therebetween. In the first mounting relationship, the support engages the cylinder member and restrains the cylinder against the head. In the second mounting relationship, the cylinder member can pass through the support member, moving away from the head and providing access to the piston-top and head.

  1. A quick SEED tutorial

    USGS Publications Warehouse

    Ringler, Adam; Evans, John R.

    2015-01-01

    A number of different government-funded seismic data centers offer free open-access data (e.g., U.S. Geological Survey, National Earthquake Information Center, the Incorporated Research Institutions for Seismology (IRIS), and Data Management System), which can be freely downloaded and shared among different members of the community (Lay, 2009). To efficiently share data, it is important that different data providers follow a common format. The Standard for the Exchange of Earthquake Data (SEED) provides one such format for storing seismic and other geophysical data. The SEED format is widely used in earthquake seismology; however, SEED and its structure can be difficult for many first-time users (ourselves included). Below is a quick tutorial that outlines the basic structure of SEED format. This write-up is in no way intended to replace the comprehensive SEED manual (Ahernetal., 2009), and instead of going into the details of any specific part of the SEED format we refer the reader to the manual for additional details. The goal of this write-up is to succinctly explain the basic structure of SEED format as well as the associated jargon, as most commonly used now, in a colloquial way so that novice users of SEED can become more familiar with the format and its application quickly. Our goal is to give the reader the necessary background so that when problems or questions about SEED format arise they will have some understanding of where they should look for more details or from where the problem might be stemming. As a secondary goal, we hope to help the reader become familiar with the SEED manual (Ahernetal., 2009), which contains detailed information about all aspects of the SEED format.

  2. Optical information encryption based on incoherent superposition with the help of the QR code

    NASA Astrophysics Data System (ADS)

    Qin, Yi; Gong, Qiong

    2014-01-01

    In this paper, a novel optical information encryption approach is proposed with the help of QR code. This method is based on the concept of incoherent superposition which we introduce for the first time. The information to be encrypted is first transformed into the corresponding QR code, and thereafter the QR code is further encrypted into two phase only masks analytically by use of the intensity superposition of two diffraction wave fields. The proposed method has several advantages over the previous interference-based method, such as a higher security level, a better robustness against noise attack, a more relaxed work condition, and so on. Numerical simulation results and actual smartphone collected results are shown to validate our proposal.

  3. The use of the QR factorization in the partial realization problem

    NASA Technical Reports Server (NTRS)

    Verhaegen, M. H.

    1987-01-01

    The use of the QR factorization of the Hankel matrix in solving the partial realization problem is analyzed. Straightforward use of the QR factorization results in a realization scheme that possesses all of the computational advantages of Rissanen's realization scheme. These latter properties are computational efficiency, recursiveness, use of limited computer memory, and the realization of a system triplet having a condensed structure. Moreover, this scheme is robust when the order of the system corresponds to the rank of the Hankel matrix. When this latter condition is violated, an approximate realization could be determined via the QR factorization. In this second scheme, the given Hankel matrix is approximated by a low-rank non-Hankel matrix. Furthermore, it is demonstrated that column pivoting might be incorporated in this second scheme. The results presented are derived for a single input/single output system, but this does not seem to be a restriction.

  4. Soluble gC1qR in Blood and Body Fluids: Examination in a Pancreatic Cancer Patient Cohort

    PubMed Central

    Peerschke, Ellinor IB; Brandwijk, Ricardo JMGE; Dembitzer, Francine R; Kinoshita, Yayoi; Ghebrehiwet, Berhane

    2015-01-01

    Background gC1qR is a multifunctional cellular protein that has been linked to inflammation and cancer. gC1qR is highly upregulated in adenocarcinomas as compared to normal tissue counterparts, and soluble gC1qR (sgC1qR) has been detected in vitro in the pericellular milieu of proliferating malignant cells. Aim The present study explored the tissue expression of gC1qR in pancreatic cancer by immunohistochemistry, and the presence of sgC1qR in vivo, by examining blood and malignant effusions from patients with metastatic pancreatic adenocarcinoma. Methods Tissue expression of gC1qR by pancreatic adenocarcinoma was visualized by immunohistochemistry. SgC1qR was quantified in serum from healthy volunteers (n=20) and pancreatic cancer patients (n=34), as well as in malignant pleural (n=23) and peritoneal effusions (n=27), using a newly developed, sensitive immunocapture sandwich ELISA. Results Overexpression of gC1qR was confirmed in pancreatic adenocarcinoma compared to nonmalignant pancreatic tissue. Moreover, increased serum levels of sgC1qR (0.29 ± 0.22 ng/ml) were noted in patients with metastatic pancreatic cancer compared to healthy controls (0.15 ± 0.10 ng/ml) (mean ± S.D.) (p=0.035). In 11 of 16 patients for whom sequential samples were available, serum sgC1qR levels rose with disease progression, and paralleled changes in tumor biomarkers, CEA and CA19.9. In addition to blood, sgC1qR was detected in malignant pleural (0.55 ± 0.47 ng/ml) and peritoneal effusions (0.57 ± 0.38 ng/ml). Conclusion This study provides the first evidence for the presence of sgC1qR in vivo. The ability to detect sgC1qR in blood and body fluids will enable further studies to elucidate its pathophysiology in malignancy.

  5. QuickTox™ Kit for QuickScan Aflatoxin FREE.

    PubMed

    Polakowski, Sergiusz; Roberts, Russell W; Tanguay, Keith; Bailey, Cheryl; Davis, Alan H; Gow, Brendan

    2015-01-01

    The QuickTox Kit for QuickScan Aflatoxin FREE uses competitive lateral flow technology and a reader based system for quantitative determination of total aflatoxins in varied matrixes. Aqueous based extraction protocols are used for corn and wheat, reducing use of solvents. Fifty percent ethanol (Reagent Alcohol) extraction is used for oats, sorghum, and barley. Eighty percent ethanol (Reagent Alcohol) extraction is used for whole peanut, peanut seed, and peanut hull samples. Matrix specific assay procedures and calibration curves are used to enable analyses across multiple sample types. The performance of this assay was examined using naturally contaminated aflatoxin corn samples and spiked samples of barley, oats, sorghum, wheat, whole peanut, peanut seed, and peanut hull samples. All data were judged against previously established acceptance criteria. Performance was evaluated in linearity, selectivity, matrix, lot consistency, and robustness experiments in the sponsor's laboratory. Results produced in all studies except robustness were within acceptable ranges. Out of range robustness study results reflected simultaneous deviation in sample volume and assay development time compared to the standard assay procedures. Aflatoxin B1, B2, and G1 were detected with approximately equal sensitivity; sensitivity for G2 was 64% that of B1. The presence of other common mycotoxins did not interfere with the assay. Matrix studies in an independent laboratory examined corn and barley to challenge both aqueous and ethanol based extraction procedures. All data points in these studies fell within the ranges defined in the acceptance criteria. The assay exhibited a linear dose response over the range tested, 0-100 ppb, with R(2) values exceeding 0.93 and RSDr values for results ranging from 2.27 to 23.84%. PMID:26651570

  6. Development of Human-Tracking Robot by Using QR Code Recognition

    NASA Astrophysics Data System (ADS)

    Eimon, Koki; Anezaki, Takashi; Tansuriyavong, Suriyon; Yagi, Yasushi

    In this paper, we propose a human-tracking robot that can be used in some commercial establishments, such as airports and factories. Human-tracking process involves four main steps. The first step involves robust personal identification by using QR code recognition. It is the most important step in human tracking. The second step is location detection by shape-based pattern matching in order to determine the position of the QR code when the human being tracked moves far from the robot. The third step involves auxiliary re-detection by using IR cameras and retroreflectors in case that local detection is difficult in the second step. The fourth step is robot control to maintain the correct distance for human tracking. In a measurement experiment for rate of QR code recognition, it was shown that the rate of QR code recognition was 99.9% and that location detection is robust. In a robot-control experiment, it was shown that the tracking is accurate. During tracking, the robot maintains an appropriate distance from the human.

  7. Isolation of a human endothelial cell C1q receptor (C1qR).

    PubMed

    Peerschke, E I; Malhotra, R; Ghebrehiwet, B; Reid, K B; Willis, A C; Sim, R B

    1993-02-01

    C1q binding to endothelial cells has been described previously, but the putative cell surface receptor(s) has not been identified. In the present study, modifications of a reported purification of lymphocyte C1q receptor (C1qR) were used to isolate C1q binding sites from human umbilical vein endothelial cells. Cells were harvested, without protease treatment, at passage 10-17 and lysed with 1% Triton X-100. The lysate was fractionated on Fast-performance liquid chromatography (FPLC) Mono-Q using a linear NaCl gradient, followed by high-performance liquid chromatography (HPLC) ion exchange (TSKgel DEAE-NPR). A major protein was eluted that had the same mobility on sodium dodecyl sulfate-polyacrylamide gels and the same NH2-terminal sequence as lymphocyte C1qR. This protein was expressed on the surface, as judged by surface radioiodination, bound to C1q-coated surfaces, and was recognized by polyclonal antilymphocyte C1qR antibodies. Thus, endothelial cells express a C1q receptor that appears identical to lymphocyte C1qR. The data further support the hypothesis that cell surface C1qRs identified on a variety of somatic and cultured cells are either identical or constitute a family of closely related molecules. PMID:8445329

  8. Using QR Codes to Differentiate Learning for Gifted and Talented Students

    ERIC Educational Resources Information Center

    Siegle, Del

    2015-01-01

    QR codes are two-dimensional square patterns that are capable of coding information that ranges from web addresses to links to YouTube video. The codes save time typing and eliminate errors in entering addresses incorrectly. These codes make learning with technology easier for students and motivationally engage them in news ways.

  9. Breaking the Code: The Creative Use of QR Codes to Market Extension Events

    ERIC Educational Resources Information Center

    Hill, Paul; Mills, Rebecca; Peterson, GaeLynn; Smith, Janet

    2013-01-01

    The use of smartphones has drastically increased in recent years, heralding an explosion in the use of QR codes. The black and white square barcodes that link the physical and digital world are everywhere. These simple codes can provide many opportunities to connect people in the physical world with many of Extension online resources. The

  10. UV-responsive polyvinyl alcohol nanofibers prepared by electrospinning

    NASA Astrophysics Data System (ADS)

    Khatri, Zeeshan; Ali, Shamshad; Khatri, Imran; Mayakrishnan, Gopiraman; Kim, Seong Hun; Kim, Ick-Soo

    2015-07-01

    We report UV-responsive polyvinyl alcohol (PVA) nanofibers for potential application for recording and erasing quick response (QR) codes. We incorporate 1‧-3‧-dihydro-8-methoxy-1‧,3‧,3‧-trimethyl-6-nitrospiro [2H-1-benzopyran-2,2‧-(2H)-indole] (indole) and,3-dihydro-1,3,3-trimethylspiro [2H-indole-2,3‧-[3H] phenanthr [9,10-b] (1,4) oxazine] (oxazine) into PVA polymer matrix via electrospinning technique. The resultant nanofibers were measured for recording-erasing, photo-coloration and thermal reversibility. The rate of photo-coloration of PVA-indole nanofibers was five times higher than the PVA-oxazine nanofibers, whereas the thermal reversibility found to be more than twice as fast as PVA-oxazine nanofibers. Results showed that the resultant nanofibers have very good capability of recording QR codes multiple times. The FTIR spectroscopy and SEM were employed to characterize the electrospun nanofibers. The UV-responsive PVA nanofibers have great potentials as a light-driven nanomaterials incorporated within sensors, sensitive displays and in optical devices such as erasable and rewritable optical storage.

  11. Structural basis for high substrate-binding affinity and enantioselectivity of 3-quinuclidinone reductase AtQR

    SciTech Connect

    Hou, Feng; Miyakawa, Takuya; Kataoka, Michihiko; Takeshita, Daijiro; Kumashiro, Shoko; Uzura, Atsuko; Urano, Nobuyuki; Nagata, Koji; Shimizu, Sakayu; Tanokura, Masaru

    2014-04-18

    Highlights: • Crystal structure of AtQR has been determined at 1.72 Å. • NADH binding induces the formation of substrate binding site. • AtQR possesses a conserved hydrophobic wall for stereospecific binding of substrate. • Additional Glu197 residue is critical to the high binding affinity. - Abstract: (R)-3-Quinuclidinol, a useful compound for the synthesis of various pharmaceuticals, can be enantioselectively produced from 3-quinuclidinone by 3-quinuclidinone reductase. Recently, a novel NADH-dependent 3-quinuclidionone reductase (AtQR) was isolated from Agrobacterium tumefaciens, and showed much higher substrate-binding affinity (>100 fold) than the reported 3-quinuclidionone reductase (RrQR) from Rhodotorula rubra. Here, we report the crystal structure of AtQR at 1.72 Å. Three NADH-bound protomers and one NADH-free protomer form a tetrameric structure in an asymmetric unit of crystals. NADH not only acts as a proton donor, but also contributes to the stability of the α7 helix. This helix is a unique and functionally significant part of AtQR and is related to form a deep catalytic cavity. AtQR has all three catalytic residues of the short-chain dehydrogenases/reductases family and the hydrophobic wall for the enantioselective reduction of 3-quinuclidinone as well as RrQR. An additional residue on the α7 helix, Glu197, exists near the active site of AtQR. This acidic residue is considered to form a direct interaction with the amine part of 3-quinuclidinone, which contributes to substrate orientation and enhancement of substrate-binding affinity. Mutational analyses also support that Glu197 is an indispensable residue for the activity.

  12. An Exploratory Study of a Subspace Iteration Method as an Alternative to the QR Method for Floquet Eigenanalysis

    NASA Technical Reports Server (NTRS)

    Achar, N. S.; Gaonkar, G. H.

    1994-01-01

    Floquet eigenanalysis requires a few dominant eigenvalues of the Floquet transition matrix (FTM). Although the QR method is used almost exclusively, it is expensive for such partial eigenanalysis; the operation counts and, thereby, the approximate machine-time grow cubically with the matrix order. Accordingly, for Floquet eigenanalysis, the Arnold-Saad method, a subspace iteration method, is investigated as an alternative to the QR method. The two methods are compared for machine-time efficiency and the residual errors of the corresponding eigenpairs. The Arnolds-Saad method takes much less machine-time than the QR method with comparable computational reliability and offers promise fpr large-scale Floquet eigenanalysis.

  13. QR-STEM: Energy and Environment as a Context for Improving QR and STEM Understandings of 6-12 Grade Teachers I. The Science

    NASA Astrophysics Data System (ADS)

    Lyford, M. E.; Myers, J. D.; Mayes, R. L.

    2009-12-01

    Numerous educational studies have documented serious shortcomings in student's quantitative reasoning (QR), understanding of science and ability to connect these to their daily lives. These have driven many reform efforts in teacher professional development. Historically, most of these efforts have focused on science or math and rarely on the science-society connection. For the past two years, a Wyoming Department of Education funded Math-Science Partnership (MSP) professional development program has created a collaboration of university and community college faculty and middle and high school teachers to address QR, science and social relevance in the context of energy and the environment. This professional development project is designed to: 1) improve teacher content knowledge (both in the sciences and math); 2) demonstrate the many social contexts in which science and QR are relevant and can be taught; 3) model effective science and QR classroom activities for teachers; 4) provide teachers with the opportunity to develop and test their own classroom materials; 5) foster the development of professional learning communities across the state; and 6) initiate discussions about curriculum across disciplinary boundaries. Over the course of four summer meetings, participants investigate a series of issues centered on energy and the environment, including transportation, electricity, biogeochemical cycles, Peak Oil, carbon sequestration and climate change. Each issue is approached in an interdisciplinary manner, where relevant aspects from the life sciences, earth sciences, chemistry and physics are addressed. An introductory presentation on the general theme kicks off each meeting to introduce the problem. Subsequent sessions are lead by faculty from the various scientific disciplines as well as math. During their sessions, university and community college faculty model active learning exercises for each issue. These activities weave together the relevant disciplinary scientific concepts, societal connections, and the quantitative skills students need to understand the issues from the perspective of an engaged but questioning citizen of a democracy. The project encourages multidisciplinary teams of teachers (science and math) from a school or district to work together to develop curricula that may span across courses and across grade levels within a school. During the meetings, teachers work in teams to develop activities tied to energy and the environment which they present to the entire group for feedback. During the course of the school year, teachers implement their activities and share their experiences with the whole group through online-meetings. To date, the program has worked with three teacher cohorts of 25-30 teachers each. Teachers in the program are drawn from both the math and science areas thereby initiating cross-disciplinary discourses that are rarely accommodated by current school organizational structures.

  14. Asthma - quick-relief drugs

    MedlinePLUS

    Asthma quick-relief medicines work fast to control asthma symptoms. You take them when you are coughing, wheezing, having trouble breathing, or having an asthma attack. They are also called rescue drugs. These ...

  15. Spacecraft design applications of QUICK

    NASA Technical Reports Server (NTRS)

    Skinner, David L.

    1992-01-01

    The interactive space mission trajectory design environment software QUICK, which is currently available on 14 different machine architectures, furnishes a programmable FORTRAN-like interface for a wide range of both built-in and user-defined functions. Since its inception at JPL in 1971, QUICK has evolved from a specialized calculator into a general-purpose engineering tool which also facilitates spacecraft conceptual design by treating spacecraft as collections of data records describing individual components of instruments.

  16. Experimental scrambling and noise reduction applied to the optical encryption of QR codes.

    PubMed

    Barrera, John Fredy; Vlez, Alejandro; Torroba, Roberto

    2014-08-25

    In this contribution, we implement two techniques to reinforce optical encryption, which we restrict in particular to the QR codes, but could be applied in a general encoding situation. To our knowledge, we present the first experimental-positional optical scrambling merged with an optical encryption procedure. The inclusion of an experimental scrambling technique in an optical encryption protocol, in particular dealing with a QR code "container", adds more protection to the encoding proposal. Additionally, a nonlinear normalization technique is applied to reduce the noise over the recovered images besides increasing the security against attacks. The opto-digital techniques employ an interferometric arrangement and a joint transform correlator encrypting architecture. The experimental results demonstrate the capability of the methods to accomplish the task. PMID:25321236

  17. Rate Control for Zero-Forcing Beamforming Multiuser MIMO Systems with QR-Decomposition MLD Receiver

    NASA Astrophysics Data System (ADS)

    Fujii, Masaaki

    A rate control scheme is described for zero-forcing beamforming (ZFBF) multiuser multiple-input and multiple-output (MU-MIMO) systems with a QR-decomposition maximum likelihood detector (MLD) at the receiver. For selected users, a modulation-and-coding set is selected for each substream by estimating the per-substream post-MLD signal-to-interference-plus-noise ratio. Iterative modified QR-decomposition MLD is employed at the receiver to achieve the throughput expected from the transmitter. The simulation results demonstrated that the proposed rate-control scheme achieved the target packet error rate while increasing the throughout for ZFBF-MU-MIMO systems as the number of user candidates increases.

  18. Implementation of QR-decomposition based on CORDIC for unitary MUSIC algorithm

    NASA Astrophysics Data System (ADS)

    Lounici, Merwan; Luan, Xiaoming; Saadi, Wahab

    2013-07-01

    The DOA (Direction Of Arrival) estimation with subspace methods such as MUSIC (MUltiple SIgnal Classification) and ESPRIT (Estimation of Signal Parameters via Rotational Invariance Technique) is based on an accurate estimation of the eigenvalues and eigenvectors of covariance matrix. QR decomposition is implemented with the Coordinate Rotation DIgital Computer (CORDIC) algorithm. QRD requires only additions and shifts [6], so it is faster and more regular than other methods. In this article the hardware architecture of an EVD (Eigen Value Decomposition) processor based on TSA (triangular systolic array) for QR decomposition is proposed. Using Xilinx System Generator (XSG), the design is implemented and the estimated logic device resource values are presented for different matrix sizes.

  19. The minimal residual QR-factorization algorithm for reliably solving subset regression problems

    NASA Technical Reports Server (NTRS)

    Verhaegen, M. H.

    1987-01-01

    A new algorithm to solve test subset regression problems is described, called the minimal residual QR factorization algorithm (MRQR). This scheme performs a QR factorization with a new column pivoting strategy. Basically, this strategy is based on the change in the residual of the least squares problem. Furthermore, it is demonstrated that this basic scheme might be extended in a numerically efficient way to combine the advantages of existing numerical procedures, such as the singular value decomposition, with those of more classical statistical procedures, such as stepwise regression. This extension is presented as an advisory expert system that guides the user in solving the subset regression problem. The advantages of the new procedure are highlighted by a numerical example.

  20. Effects of q(r) on the Alpha Particle Ripple Loss in TFTR

    SciTech Connect

    D.S. Darrow; M. Diesso; R.V. Budny; S. Batha; S.J. Zweben; et al.

    1997-09-01

    An experiment was done with TFTR DT plasmas to determine the effect of the q(r) profile on the alpha particle ripple loss to the outer midplane. The alpha particle loss measurements were made using a radially movable scintillator detector 20 degrees below the outer midplane. The experimental results were compared with TF ripple loss calculations done using a Monte Carlo guiding center orbit following code, ORBIT. Although some of the experimental results are consistent with the ORBIT code modeling, the variation of the alpha loss with the q(r) profiles is not well explained by this code. Quantitative interpretation of these measurements requires a careful analysis of the limiter shadowing effect, which strongly determines the diffusion of alphas into the detector aperture.

  1. gC1qR expression in chimpanzees with resolved and chronic infection: Potential role of HCV core/gC1qR-mediated T cell suppression in the outcome of HCV infection

    SciTech Connect

    Yao Zhiqang; Shata, Mohamed Tarek; Tricoche, Nancy; Shan, M.M.; Brotman, Betsy; Pfahler, Wolfram; Hahn, Young S. . E-mail: ysh5e@virginia.edu; Prince, Alfred M.

    2006-03-15

    Chimpanzee is a unique animal model for HCV infection, in which about 50% of infections resolve spontaneously. It has been reported that the magnitude of T cell responses to HCV core in recovered chimpanzees is greater than that in chronically infected ones. However, the mechanism(s) by which the chimpanzees with resolved infection overcome core-mediated immunosuppression remains unknown. In this study, we examined the effect of HCV core on T cell responsiveness in chimpanzees with resolved and chronic HCV infection. We found that core protein strongly inhibited T cell activation and proliferation in chimpanzees with chronic infection, while this inhibition was limited in chimpanzees with resolved infection. Notably, the level of gC1qR, as well as the binding of core protein, on the surface of T cells was lower in recovered chimpanzees when compared to chimpanzees with chronic HCV infection. Intriguingly, the observed differences in gC1qR expression levels and susceptibility to core-induced suppression amongst HCV-chronically infected and recovered chimpanzees were observed prior to HCV challenge, suggesting a possible genetic determination of the outcome of infection. These findings suggest that gC1qR expression on the surface of T cells is crucial for HCV core-mediated T cell suppression and viral clearance, and that represents a novel mechanism by which a virus usurps host machinery for persistence.

  2. gC1qR expression in chimpanzees with resolved and chronic infection: potential role of HCV core/gC1qR-mediated T cell suppression in the outcome of HCV infection.

    PubMed

    Yao, Zhi Qiang; Shata, Mohamed Tarek; Tricoche, Nancy; Shan, Mei Mei; Brotman, Betsy; Pfahler, Wolfram; Hahn, Young S; Prince, Alfred M

    2006-03-15

    Chimpanzee is a unique animal model for HCV infection, in which about 50% of infections resolve spontaneously. It has been reported that the magnitude of T cell responses to HCV core in recovered chimpanzees is greater than that in chronically infected ones. However, the mechanism(s) by which the chimpanzees with resolved infection overcome core-mediated immunosuppression remains unknown. In this study, we examined the effect of HCV core on T cell responsiveness in chimpanzees with resolved and chronic HCV infection. We found that core protein strongly inhibited T cell activation and proliferation in chimpanzees with chronic infection, while this inhibition was limited in chimpanzees with resolved infection. Notably, the level of gC1qR, as well as the binding of core protein, on the surface of T cells was lower in recovered chimpanzees when compared to chimpanzees with chronic HCV infection. Intriguingly, the observed differences in gC1qR expression levels and susceptibility to core-induced suppression amongst HCV-chronically infected and recovered chimpanzees were observed prior to HCV challenge, suggesting a possible genetic determination of the outcome of infection. These findings suggest that gC1qR expression on the surface of T cells is crucial for HCV core-mediated T cell suppression and viral clearance, and that represents a novel mechanism by which a virus usurps host machinery for persistence. PMID:16368125

  3. Diagnosis of breast tumor using thermal tomography q-r curve.

    PubMed

    Shi, Guilian; Wang, Lin; Han, Fei; Liang, Chengwen; Li, Kaiyang

    2015-06-01

    Metabolic heat, the product following the metabolism of cells, is closely related to the pathological information of living organisms, which means there are strong connections between the heat distribution and the pathological state of the living organism. The mathematical function ? is introduced in the classical Pennes bioheat transfer equation as a point heat source, and by simplifying the boundary condition, a bioheat transfer model is established. Based on the temperature distribution of the human body surface, the q?r curve of heat intensity q varying with depth r is acquired while combining the ?tting method of the Lorentz curve. According to 34,977 clinical confirmed cases and the corresponding classified statistics, diagnostic criteria (for breast diseases) for judging diseases by the q?r curve are proposed. The P -value of our statistics is <0.05 , which means our classified statistics are reliable. Six typical clinical examinations are performed, and the diagnosis results are very consistent with those of B-ultrasonic images, molybdenum target x-ray, and pathological examination, which suggests that the method of diagnosing diseases with a q?r curve has very good prospects for application. It is radiation free and noninvasive to the human body. PMID:26107508

  4. QuickBird Panchromatic Imagery: Spatial Resolution Evaluation

    NASA Technical Reports Server (NTRS)

    Blonski, Slawomir

    2003-01-01

    This viewgraph document reviews the use of inflight edge response measurements to evaluate remote sensing image products. Specifically the QuickBird panchormatic imagery of tarps at Stennis Space Center is evaluated

  5. A virtual tour of geological heritage: Valourising geodiversity using Google Earth and QR code

    NASA Astrophysics Data System (ADS)

    Martnez-Graa, A. M.; Goy, J. L.; Cimarra, C. A.

    2013-12-01

    When making land-use plans, it is necessary to inventory and catalogue the geological heritage and geodiversity of a site to establish an apolitical conservation protection plan to meet the educational and social needs of society. New technologies make it possible to create virtual databases using virtual globes - e.g., Google Earth - and other personal-use geomatics applications (smartphones, tablets, PDAs) for accessing geological heritage information in real time for scientific, educational, and cultural purposes via a virtual geological itinerary. Seventeen mapped and georeferenced geosites have been created in Keyhole Markup Language for use in map layers used in geological itinerary stops for different applications. A virtual tour has been developed for Las Quilamas Natural Park, which is located in the Spanish Central System, using geological layers and topographic and digital terrain models that can be overlaid in a 3D model. The Google Earth application was used to import the geosite placemarks. For each geosite, a tab has been developed that shows a description of the geology with photographs and diagrams and that evaluates the scientific, educational, and tourism quality. Augmented reality allows the user to access these georeferenced thematic layers and overlay data, images, and graphics in real time on their mobile devices. These virtual tours can be incorporated into subject guides designed by public. Seven educational and interpretive panels describing some of the geosites were designed and tagged with a QR code that could be printed at each stop or in the printed itinerary. These QR codes can be scanned with the camera found on most mobile devices, and video virtual tours can be viewed on these devices. The virtual tour of the geological heritage can be used to show tourists the geological history of the Las Quilamas Natural Park using new geomatics technologies (virtual globes, augmented reality, and QR codes).

  6. CliffsQuickReview Physics

    NASA Astrophysics Data System (ADS)

    Huetinck, Linda; Ph., D.; Adams, Scott

    2001-06-01

    CliffsQuickReview course guides cover the essentials of your toughest subjects. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. Whether you need a course supplement, help preparing for a physics exam, or a concise reference for physics, CliffsQuickReview Physics can help. This guide provides a valuable introduction to the concepts of classical mechanics, thermodynamics, magnetism, and electricity. In no time, you'll be ready to tackle other concepts in this book such as Wave motion and sound Current and resistance Electromagnetic induction Geometrical optics Nuclear physics Quantum mechanics CliffsQuickReview Physics acts as a supplement to your other learning material. Use this reference in any way that fits your personal style for study and review -- you decide what works best with your needs. You can flip through the book until you find what you're looking for -- it's organized to gradually build on key concepts. Or, here are just a few other ways you can search for topics: Use the free Pocket Guide full of essential information Get a glimpse of what you'll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.

  7. STAR adaptation of QR algorithm. [program for solving over-determined systems of linear equations

    NASA Technical Reports Server (NTRS)

    Shah, S. N.

    1981-01-01

    The QR algorithm used on a serial computer and executed on the Control Data Corporation 6000 Computer was adapted to execute efficiently on the Control Data STAR-100 computer. How the scalar program was adapted for the STAR-100 and why these adaptations yielded an efficient STAR program is described. Program listings of the old scalar version and the vectorized SL/1 version are presented in the appendices. Execution times for the two versions applied to the same system of linear equations, are compared.

  8. Quick-change filter cartridge

    DOEpatents

    Rodgers, John C. (Santa Fe, NM); McFarland, Andrew R. (College Station, TX); Ortiz, Carlos A. (Bryan, TX)

    1995-01-01

    A quick-change filter cartridge. In sampling systems for measurement of airborne materials, a filter element is introduced into the sampled airstream such that the aerosol constituents are removed and deposited on the filter. Fragile sampling media often require support in order to prevent rupture during sampling, and careful mounting and sealing to prevent misalignment, tearing, or creasing which would allow the sampled air to bypass the filter. Additionally, handling of filter elements may introduce cross-contamination or exposure of operators to toxic materials. Moreover, it is desirable to enable the preloading of filter media into quick-change cartridges in clean laboratory environments, thereby simplifying and expediting the filter-changing process in the field. The quick-change filter cartridge of the present invention permits the application of a variety of filter media in many types of instruments and may also be used in automated systems. The cartridge includes a base through which a vacuum can be applied to draw air through the filter medium which is located on a porous filter support and held there by means of a cap which forms an airtight seal with the base. The base is also adapted for receiving absorbing media so that both particulates and gas-phase samples may be trapped for investigation, the latter downstream of the aerosol filter.

  9. The binding protein for globular heads of complement C1q, gC1qR. Functional expression and characterization as a novel vitronectin binding factor.

    PubMed

    Lim, B L; Reid, K B; Ghebrehiwet, B; Peerschke, E I; Leigh, L A; Preissner, K T

    1996-10-25

    A binding protein for the globular head domains of complement component C1q, designated gC1qR, recently described to be present on vascular and blood cells (Ghebrehiwet, B., Lim, B.-L., Peerschke, E. I. B., Willis, A. C., and Reid, K. B. M. (1994) J. Exp. Med. 179, 1809-1821 was expressed in recombinant form in bacteria to investigate its functional and structural properties. The recombinant gC1qR was found to be functional because tetramerization of the 24.3-kDa polypeptide occurred as described for the native protein, and the binding of the ligand C1q by recombinant gC1qR was indistinguishable from binding shown by gC1qR isolated from Raji cells. Recombinant gC1qR immobilized to microspheres was used to search for additional binding proteins unrelated to C1q. Surprisingly, it was found that vitronectin or complexes containing vitronectin were retained from plasma or serum, and subsequent analysis revealed the specific binding of the ternary vitronectin-thrombin-antithrombin complex to gC1qR. Because the thrombin-antithrombin complex was unable to interact with gC1qR, direct binding with vitronectin was investigated in a purified system. The heparin binding multimeric form of vitronectin but not the plasma form of vitronectin was found to bind specifically to gC1qR isolated from Raji cell membrane as well as to recombinant gC1qR. This interaction was saturable (KD approximately 20 nM) and inhibitable by glycosaminoglycans such as heparin but not by chondroitin sulfate. C1q and vitronectin did not compete with each other for binding to gC1qR, and both ligands seem to interact with different parts of the gC1qR because a truncated version of recombinant gC1qR lacking the N-terminal 22-amino acid portion hardly interacted with vitronectin but bound C1q as well as the intact gC1qR. These findings establish gC1qR as a novel vitronectin-binding protein that may participate in the clearance of vitronectin-containing complexes or opsonized particles or cooperate with vitronectin in the inhibition of complement-mediated cytolysis. PMID:8900153

  10. Q-r curve of thermal tomography and its clinical application on breast tumor diagnosis

    PubMed Central

    Shi, Guilian; Han, Fei; Wang, Lin; Liang, Chengwen; Li, Kaiyang

    2015-01-01

    Heat is the product following the metabolism of cells, and the metabolism is closely related with the pathological information of living organism. So, there are strong ties between the heat distribution and the pathological state in living organism. In this paper, the mathematical function ? is introduced in the classical Pennes bio-heat transfer equation as the point heat source. By simplifying the boundary conditions, a novel bio-heat transfer model is established and solved in a spherical coordinate system. Based on the temperature distribution of human body surface, the information of heat source is mined layer by layer, and the corresponding q-r curve of heat intensity varying with depth is acquired combining the fitting method of Lorentz curve. According to a large number of clinical confirmed cases and statistics, the diagnostic criteria judging diseases by q-r curve are proposed. Five typical clinical practices are performed and four of the diagnosis results are very consistent with those of molybdenum target (MT) X-ray, B-ultrasonic images and pathological examination, one gives the result of early stage malignant tumor that MT X-ray and B-ultrasonic cant check out. It is a radiation-free green method with noninvasive diagnostic procedure and accurate diagnosis result. PMID:25908998

  11. A tight and explicit representation of Q in sparse QR factorization

    SciTech Connect

    Ng, E.G.; Peyton, B.W.

    1992-05-01

    In QR factorization of a sparse m{times}n matrix A (m {ge} n) the orthogonal factor Q is often stored implicitly as a lower trapezoidal matrix H known as the Householder matrix. This paper presents a simple characterization of the row structure of Q, which could be used as the basis for a sparse data structure that can store Q explicitly. The new characterization is a simple extension of a well known row-oriented characterization of the structure of H. Hare, Johnson, Olesky, and van den Driessche have recently provided a complete sparsity analysis of the QR factorization. Let U be the matrix consisting of the first n columns of Q. Using results from, we show that the data structures for H and U resulting from our characterizations are tight when A is a strong Hall matrix. We also show that H and the lower trapezoidal part of U have the same sparsity characterization when A is strong Hall. We then show that this characterization can be extended to any weak Hall matrix that has been permuted into block upper triangular form. Finally, we show that permuting to block triangular form never increases the fill incurred during the factorization.

  12. Q-r curve of thermal tomography and its clinical application on breast tumor diagnosis.

    PubMed

    Shi, Guilian; Han, Fei; Wang, Lin; Liang, Chengwen; Li, Kaiyang

    2015-04-01

    Heat is the product following the metabolism of cells, and the metabolism is closely related with the pathological information of living organism. So, there are strong ties between the heat distribution and the pathological state in living organism. In this paper, the mathematical function ? is introduced in the classical Pennes bio-heat transfer equation as the point heat source. By simplifying the boundary conditions, a novel bio-heat transfer model is established and solved in a spherical coordinate system. Based on the temperature distribution of human body surface, the information of heat source is mined layer by layer, and the corresponding q-r curve of heat intensity varying with depth is acquired combining the fitting method of Lorentz curve. According to a large number of clinical confirmed cases and statistics, the diagnostic criteria judging diseases by q-r curve are proposed. Five typical clinical practices are performed and four of the diagnosis results are very consistent with those of molybdenum target (MT) X-ray, B-ultrasonic images and pathological examination, one gives the result of early stage malignant tumor that MT X-ray and B-ultrasonic can't check out. It is a radiation-free green method with noninvasive diagnostic procedure and accurate diagnosis result. PMID:25908998

  13. Two case studies: QuietRock QR-530 drywall panels in new and remediated multifamily construction

    NASA Astrophysics Data System (ADS)

    Tinianov, Brian D.

    2005-09-01

    Reliable acoustical isolation continues to be a high risk element of contemporary multifamily construction. Traditional construction techniques, offering potentially high acoustical performance, exist but may be compromised during typical construction or occupation. This paper presents two case studies using a new class of construction material-drywall panels employing constrained layer damping. QuietRock QR-530 damped gypsum board panels are used in a new construction project and as part of a remediation treatment. In a first study, QR-530 panels were used as a drywall alternative in a 26, semistaggered, framed wall separating luxury condominiums. Field evaluation per ASTM E36 revealed a normalized noise isolation class of 56. In a second case study, a single layer of QuietRock was applied directly to an existing single stud assembly in a resort hotel. Before and after testing yielded a change of 14 points, raising the noise isolation class from 36 to 50. This paper reviews the details of the test cases and the underlying physical principals of the subject materials.

  14. PIRLA DBMS quick reference guide

    SciTech Connect

    Smith, J.

    1991-11-01

    The handbook facilitates the use of the PIRLA (Paleoecological Investigation of Recent Lake Acidification) database retrievals by showing all possible inputs, outputs, ranges, and quick reference information that you would want at your fingertips when accessing the PIRLA data. The handbook assumes no prior knowledge of PIRLA or SIR (a database management system), although a basic familiarity with computers is helpful. The PIRLA Data Base Management System User's Manual is recommended for reference, much additional detail, description of the intrinsic structure of the PIRLA database, and how it is set up under SIR.

  15. Quick-release connector module

    NASA Technical Reports Server (NTRS)

    Sedig, Albert R. (Inventor)

    1995-01-01

    A multi-bay electrical connector is described, of the type that has a frame (12, FIG. 2 ) with cavities (14) that each holds a separate module 20, which enables quick withdrawal of a single module from the frame and its quick replacement. A lock arm (42) is slidable along a first side (50) of a first cavity, and has at least one lock lug (80). A first module has a barrier part (70) that lies inward of the lock lug, which prevents outward movement of the first module out of the frame cavity. The lock arm can be moved to an unlocked position wherein the barrier part on the module lies inward of a gap (84) in the lock arm to permit the module to be pulled out of the frame cavity and later inserted therein. A latch (54) is slidable on the frame in directions (A, B) perpendicular to the sliding movement of the lock arm, and has an abutment (112, FIG. 5 ) that abuts a shoulder (114) on the lock arm to keep the lock arm in its unlocked position until the latch is released.

  16. Quickly making the correct choice.

    PubMed

    Brenner, Eli; Smeets, Jeroen B J

    2015-08-01

    In daily life, unconscious choices guide many of our on-going actions. Such choices need to be made quickly, because the options change as the action progresses. We confirmed that people make reasonable choices when they have to quickly decide between two alternatives, and studied the basis of such decisions. The task was to tap with their finger on as many targets as possible within 2 min. A new target appeared after every tap, sometimes accompanied by a second target that was easier to hit. When there was only one target, subjects had to find the right balance between speed and accuracy. When there were two targets, they also had to choose between them. We examined to what extent subjects switched to the target that was easier to hit when it appeared some time after the original one. Subjects generally switched to the easier target whenever doing so would help them hit more targets within the 2-min session. This was so, irrespective of whether the different delays were presented in separate sessions or were interleaved within one session. Whether or not they switched did not depend on how successful they were at hitting the targets on earlier attempts, but it did depend on the position of the finger at the moment that the easy target appeared. We conclude that people have continuous access to reasonable estimates of how long various movement options would take and of how precise the endpoints are likely to be, given the instantaneous circumstances. PMID:25913027

  17. Adaptive multilayer method of fundamental solutions using a weighted greedy QR decomposition for the Laplace equation

    NASA Astrophysics Data System (ADS)

    Shigeta, Takemi; Young, D. L.; Liu, Chein-Shan

    2012-08-01

    The mixed boundary value problem of the Laplace equation is considered. The method of fundamental solutions (MFS) approximates the exact solution to the Laplace equation by a linear combination of independent fundamental solutions with different source points. The accuracy of the numerical solution depends on the distribution of source points. In this paper, a weighted greedy QR decomposition (GQRD) is proposed to choose significant source points by introducing a weighting parameter. An index called an average degree of approximation is defined to show the efficiency of the proposed method. From numerical experiments, it is concluded that the numerical solution tends to be more accurate when the average degree of approximation is larger, and that the proposed method can yield more accurate solutions with a less number of source points than the conventional GQRD.

  18. Digitized forensics: retaining a link between physical and digital crime scene traces using QR-codes

    NASA Astrophysics Data System (ADS)

    Hildebrandt, Mario; Kiltz, Stefan; Dittmann, Jana

    2013-03-01

    The digitization of physical traces from crime scenes in forensic investigations in effect creates a digital chain-of-custody and entrains the challenge of creating a link between the two or more representations of the same trace. In order to be forensically sound, especially the two security aspects of integrity and authenticity need to be maintained at all times. Especially the adherence to the authenticity using technical means proves to be a challenge at the boundary between the physical object and its digital representations. In this article we propose a new method of linking physical objects with its digital counterparts using two-dimensional bar codes and additional meta-data accompanying the acquired data for integration in the conventional documentation of collection of items of evidence (bagging and tagging process). Using the exemplary chosen QR-code as particular implementation of a bar code and a model of the forensic process, we also supply a means to integrate our suggested approach into forensically sound proceedings as described by Holder et al.1 We use the example of the digital dactyloscopy as a forensic discipline, where currently progress is being made by digitizing some of the processing steps. We show an exemplary demonstrator of the suggested approach using a smartphone as a mobile device for the verification of the physical trace to extend the chain-of-custody from the physical to the digital domain. Our evaluation of the demonstrator is performed towards the readability and the verification of its contents. We can read the bar code despite its limited size of 42 x 42 mm and rather large amount of embedded data using various devices. Furthermore, the QR-code's error correction features help to recover contents of damaged codes. Subsequently, our appended digital signature allows for detecting malicious manipulations of the embedded data.

  19. Detecting Cancer Quickly and Accurately

    NASA Astrophysics Data System (ADS)

    Gourley, Paul; McDonald, Anthony; Hendricks, Judy; Copeland, Guild; Hunter, John; Akhil, Ohmar; Capps, Heather; Curry, Marc; Skirboll, Steve

    2000-03-01

    We present a new technique for high throughput screening of tumor cells in a sensitive nanodevice that has the potential to quickly identify a cell population that has begun the rapid protein synthesis and mitosis characteristic of cancer cell proliferation. Currently, pathologists rely on microscopic examination of cell morphology using century-old staining methods that are labor-intensive, time-consuming and frequently in error. New micro-analytical methods for automated, real time screening without chemical modification are critically needed to advance pathology and improve diagnoses. We have teamed scientists with physicians to create a microlaser biochip (based upon our R&D award winning bio-laser concept)1 which evaluates tumor cells by quantifying their growth kinetics. The key new discovery was demonstrating that the lasing spectra are sensitive to the biomolecular mass in the cell, which changes the speed of light in the laser microcavity. Initial results with normal and cancerous human brain cells show that only a few hundred cells -- the equivalent of a billionth of a liter -- are required to detect abnormal growth. The ability to detect cancer in such a minute tissue sample is crucial for resecting a tumor margin or grading highly localized tumor malignancy. 1. P. L. Gourley, NanoLasers, Scientific American, March 1998, pp. 56-61. This work supported under DOE contract DE-AC04-94AL85000 and the Office of Basic Energy Sciences.

  20. Detecting cancer quickly and accurately

    NASA Astrophysics Data System (ADS)

    Gourley, Paul L.; McDonald, Anthony E.; Hendricks, Judy K.; Copeland, G. C.; Hunter, John A.; Akhil, O.; Cheung, D.; Cox, Jimmy D.; Capps, H.; Curry, Mark S.; Skirboll, Steven K.

    2000-03-01

    We present a new technique for high throughput screening of tumor cells in a sensitive nanodevice that has the potential to quickly identify a cell population that has begun the rapid protein synthesis and mitosis characteristic of cancer cell proliferation. Currently, pathologists rely on microscopic examination of cell morphology using century-old staining methods that are labor-intensive, time-consuming and frequently in error. New micro-analytical methods for automated, real time screening without chemical modification are critically needed to advance pathology and improve diagnoses. We have teamed scientists with physicians to create a microlaser biochip (based upon our R&D award winning bio- laser concept) which evaluates tumor cells by quantifying their growth kinetics. The key new discovery was demonstrating that the lasing spectra are sensitive to the biomolecular mass in the cell, which changes the speed of light in the laser microcavity. Initial results with normal and cancerous human brain cells show that only a few hundred cells -- the equivalent of a billionth of a liter -- are required to detect abnormal growth. The ability to detect cancer in such a minute tissue sample is crucial for resecting a tumor margin or grading highly localized tumor malignancy.

  1. TMI-2 quick look examination

    SciTech Connect

    Franz, W.A.; Rider, R.L.; Austin, W.A.; Cole, N.

    1982-01-01

    The purpose of this work, conducted under the Department of Energy's Reactor Evaluation Program, was to gain the earliest possible access to the TMI-2 reactor vessel and to determine the condition of the plenum assembly and the reactor core. Completion of this examination has also provided substantial progress towards removal of the reactor vessel head and eventual defueling. Two methods were developed for gaining through-head access. The first involves removal of an entire CRDM, providing a 6.8-cm-diameter access through the nozzle. In case normal uncoupling proved unsuccessful, contingency techniques were developed to disconnect the leadscrew. Two contingency procedures, one ex-head and one in-head, were developed. A second technique for through-head access, the so-called Quick Look technique, was developed at the suggestion of the Technical Assessment and Advisory Group (TAAG), a group of senior technical people funded by DOE to advise GPU Nuclear on the TMI-2 recovery. This simplified method involves uncoupling and removing a CRDM leadscrew by basically normal methods and inserting a Closed Circuit Television (CCTV) camera directly through the space vacated by the leadscrew.

  2. Quick matching of binary images

    NASA Astrophysics Data System (ADS)

    Mustafa, Adnan A. Y.

    2015-09-01

    Matching images is a fundamental problem in image processing. The most common technique used to compare binary images is to calculate the correlation between two images or simply to subtract them. Both of these methods -as well as other matching methods- require some type of similarity operation to be applied to the whole image, and hence they are image size dependent. This implies that as image size increases, more processing time is required. However, with image sizes already exceeding 20 mega-pixels and standard image sizes doubling approximately every five years, the need to find a size invariant image matching method is becoming crucial. In this paper, we present a quick way to compare and match binary images based on the Probabilistic Matching Model (PMM). We present two simple image size invariant methods based on PMM: one for fast detection of dissimilar binary images and another for matching binary images. For detecting dissimilar binary images we introduce the Dissimilar Detection via Mapping method (DDM). We compare DDM to other popular matching methods used in the image processing arena and show that DDM is magnitudes faster than any other method. For binary image matching, we use DDM as a preprocessor for other popular methods to speed up their matching speed. In particular, we use DDM with cross correlation to speed it up. Test results are presented for real images varying in size from 16 kilo-pixel images to 10 mega-pixel images to show the method's size invariance.

  3. Combined fast multipole-QR compression technique for solving electrically small to large structures for broadband applications

    NASA Technical Reports Server (NTRS)

    Jandhyala, Vikram (Inventor); Chowdhury, Indranil (Inventor)

    2011-01-01

    An approach that efficiently solves for a desired parameter of a system or device that can include both electrically large fast multipole method (FMM) elements, and electrically small QR elements. The system or device is setup as an oct-tree structure that can include regions of both the FMM type and the QR type. An iterative solver is then used to determine a first matrix vector product for any electrically large elements, and a second matrix vector product for any electrically small elements that are included in the structure. These matrix vector products for the electrically large elements and the electrically small elements are combined, and a net delta for a combination of the matrix vector products is determined. The iteration continues until a net delta is obtained that is within predefined limits. The matrix vector products that were last obtained are used to solve for the desired parameter.

  4. Integrating the ODI-PPA scientific gateway with the QuickReduce pipeline for on-demand processing

    NASA Astrophysics Data System (ADS)

    Young, Michael D.; Kotulla, Ralf; Gopu, Arvind; Liu, Wilson

    2014-07-01

    As imaging systems improve, the size of astronomical data has continued to grow, making the transfer and processing of data a significant burden. To solve this problem for the WIYN Observatory One Degree Imager (ODI), we developed the ODI-Portal, Pipeline, and Archive (ODI-PPA) science gateway, integrating the data archive, data reduction pipelines, and a user portal. In this paper, we discuss the integration of the QuickReduce (QR) pipeline into PPA's Tier 2 processing framework. QR is a set of parallelized, stand-alone Python routines accessible to all users, and operators who can create master calibration products and produce standardized calibrated data, with a short turn-around time. Upon completion, the data are ingested into the archive and portal, and made available to authorized users. Quality metrics and diagnostic plots are generated and presented via the portal for operator approval and user perusal. Additionally, users can tailor the calibration process to their specific science objective(s) by selecting custom datasets, applying preferred master calibrations or generating their own, and selecting pipeline options. Submission of a QuickReduce job initiates data staging, pipeline execution, and ingestion of output data products all while allowing the user to monitor the process status, and to download or further process/analyze the output within the portal. User-generated data products are placed into a private user-space within the portal. ODI-PPA leverages cyberinfrastructure at Indiana University including the Big Red II supercomputer, the Scholarly Data Archive tape system and the Data Capacitor shared file system.

  5. Developing Quick Writing Skills of Middle School Students with Disabilities

    ERIC Educational Resources Information Center

    Mason, Linda H.; Kubina, Richard M., Jr.; Taft, Raol J.

    2011-01-01

    Two multiple-baseline, across-participants design studies were used to examine persuasive quick write (10-minute writing responses) performance of seventh-grade students with disabilities. In the first study, 6 students were taught by a graduate research assistant; in the second study, 10 students were taught by their special education teacher. In

  6. QuickDOC: an interlibrary loan department in a microcomputer.

    PubMed

    Klein, P; Hewison, N S

    1991-01-01

    Interlibrary loan (ILL) is a critical service in most libraries and one that may consume much staff time. QuickDOC, a software program written by a medical librarian, has been designed to expedite and organize the process of requesting loans, keeping records, and preparing reports on ILL activity. The software communicates with DOCLINE, the automated ILL and referral system of the National Library of Medicine (NLM), and simplifies the management of all borrowing and lending, regardless of how requests are transmitted. QuickDOC's creator is very responsive to suggestions from users and continues to enhance the capabilities of this excellent software package. PMID:10111410

  7. Using Perturbed QR Factorizations To Solve Linear Least-Squares Problems

    SciTech Connect

    Avron, Haim; Ng, Esmond G.; Toledo, Sivan

    2008-03-21

    We propose and analyze a new tool to help solve sparse linear least-squares problems min{sub x} {parallel}Ax-b{parallel}{sub 2}. Our method is based on a sparse QR factorization of a low-rank perturbation {cflx A} of A. More precisely, we show that the R factor of {cflx A} is an effective preconditioner for the least-squares problem min{sub x} {parallel}Ax-b{parallel}{sub 2}, when solved using LSQR. We propose applications for the new technique. When A is rank deficient we can add rows to ensure that the preconditioner is well-conditioned without column pivoting. When A is sparse except for a few dense rows we can drop these dense rows from A to obtain {cflx A}. Another application is solving an updated or downdated problem. If R is a good preconditioner for the original problem A, it is a good preconditioner for the updated/downdated problem {cflx A}. We can also solve what-if scenarios, where we want to find the solution if a column of the original matrix is changed/removed. We present a spectral theory that analyzes the generalized spectrum of the pencil (A*A,R*R) and analyze the applications.

  8. Quick Fix for Managing Risks

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Under a Phase II SBIR contract, Kennedy and Lumina Decision Systems, Inc., jointly developed the Schedule and Cost Risk Analysis Modeling (SCRAM) system, based on a version of Lumina's flagship software product, Analytica(R). Acclaimed as "the best single decision-analysis program yet produced" by MacWorld magazine, Analytica is a "visual" tool used in decision-making environments worldwide to build, revise, and present business models, minus the time-consuming difficulty commonly associated with spreadsheets. With Analytica as their platform, Kennedy and Lumina created the SCRAM system in response to NASA's need to identify the importance of major delays in Shuttle ground processing, a critical function in project management and process improvement. As part of the SCRAM development project, Lumina designed a version of Analytica called the Analytica Design Engine (ADE) that can be easily incorporated into larger software systems. ADE was commercialized and utilized in many other developments, including web-based decision support.

  9. Quick and Dirty WFPC2 Stellar Photometry

    NASA Technical Reports Server (NTRS)

    Mighell, Kenneth J.

    2001-01-01

    The latest release of the IRAF (Image Reduction and Analysis Facility) MXTOOLS package includes the new tasks QDWFPC2 (Quick and Dirty Wide Field and Planetary Camera, which does quick CCD (charge-coupled device) stellar photometry on two Hubble Space Telescope (HST) WFPC2 (Wide Field and Planetary Camera) observations: WFPC2COLOR, which converts HST WFPC2 instrumental magnitudes to standard colors using the Holtzman et al. color equations, and QDCMD (Quick and Dirty Color Magnitude Diagram), which reads the output of WFPC2COLOR and displays a color-magnitude diagram on a user-chosen graphics device.

  10. Colonoscopy Findings Fade Quickly from Memory

    MedlinePLUS

    ... fullstory_155055.html Colonoscopy Findings Fade Quickly From Memory Study found the more time between checks, the ... All rights reserved. More Health News on: Colonoscopy Memory Recent Health News Related MedlinePlus Health Topics Colonoscopy ...

  11. Quick Tips - When Planning for Surgery

    MedlinePLUS

    ... Go to Online Store Quick Tips — When Planning for Surgery The single most important way you ... your care. This information will help you when planning for surgery. No surgery is risk free. It ...

  12. QUICK INDICATOR TESTS TO CHARACTERIZE BENTONITE TYPE

    EPA Science Inventory

    Ten commercially available bentonite products representing unaltered, polymer protected, and chemically treated sodium bentonites were used in laboratory testing. The purpose was to identify a quick, reliable, cost-effective and field practical indicator test procedure which perm...

  13. A quick look back - 2011 journal resume

    PubMed Central

    Talanow, Roland

    2011-01-01

    This is a quick retrospective view back to the year 2011, summarizing the journal’s experience, demonstrating submission statistics of the Journal of Radiology Case Reports and journal updates planned for the year 2012. PMID:22470774

  14. GluA2 is rapidly edited at the Q/R site during neural differentiation in vitro

    PubMed Central

    Pachernegg, Svenja; Münster, Yvonne; Muth-Köhne, Elke; Fuhrmann, Gloria; Hollmann, Michael

    2015-01-01

    The majority of AMPA receptors in the adult brain contain GluA2 subunits, which can be edited at the Q/R site, changing a glutamine to an arginine within the ion pore. Q/R editing renders AMPARs virtually Ca2+-impermeable, which is important for normal AMPA receptor function. Thus, all GluA2 subunits are Q/R-edited in the adult brain. However, it has remained controversial precisely when editing sets in during development. In the present study, we show that GluA2 mRNA is very rapidly Q/R-edited immediately after its appearance, which is after 4.5 days of differentiation from 46C embryonic stem cells (ESCs) to neuroepithelial precursor cells (NEPs). At this time point, most of the GluA2 transcripts were already edited, with only a small fraction remaining unedited, and half a day later all GluA2 transcripts were edited. This can be explained by the observation that the enzyme that Q/R-edits GluA2 transcripts, ADAR2, is already expressed in the cell well before GluA2 transcription starts, and later is not significantly upregulated any more. Editing at another site works differently: The R/G site within the ligand-binding domain was never completely edited at any of the developmental stages tested, and the enzyme that performs this editing, ADAR1, was significantly upregulated during neural differentiation. This confirms previous data suggesting that R/G editing, in contrast to Q/R editing, progresses gradually during development. PMID:25798088

  15. Data ingestion into NeQuick 2

    NASA Astrophysics Data System (ADS)

    Nava, B.; Radicella, S. M.; Azpilicueta, F.

    2011-12-01

    NeQuick 2 is the latest version of the NeQuick ionosphere electron density model developed at the Aeronomy and Radiopropagation Laboratory of the Abdus Salam International Centre for Theoretical Physics (ICTP) - Trieste, Italy with the collaboration of the Institute for Geophysics, Astrophysics and Meteorology of the University of Graz, Austria. It is a quick-run model particularly designed for trans-ionospheric propagation applications that has been conceived to reproduce the median behavior of the ionosphere. To provide 3-D specification of the ionosphere electron density for current conditions, different ionosphere electron density retrieval techniques based on the NeQuick adaptation to GPS-derived Total Electron Content (TEC) data and ionosonde measured peak parameters values have been developed. In the present paper the technique based on the ingestion of global vertical TEC map into NeQuick 2 will be validated and an assessment of the capability of the model to reproduce the ionosphere day-to-day variability will also be performed. For this purpose hourly GPS-derived global vertical TEC maps and hourly foF2 values from about 20 ionosondes corresponding to one month in high solar activity and one month in low solar activity period will be used. Furthermore, the first results concerning the ingestion of space-based GPS-derived TEC data will be presented.

  16. FaQR, Required for the Biosynthesis of the Strawberry Flavor Compound 4-Hydroxy-2,5-Dimethyl-3(2H)-Furanone, Encodes an Enone Oxidoreductase

    PubMed Central

    Raab, Thomas; Lpez-Rez, Juan Antonio; Klein, Dorothe; Caballero, Jose Luis; Moyano, Enriqueta; Schwab, Wilfried; Muoz-Blanco, Juan

    2006-01-01

    The flavor of strawberry (Fragaria ananassa) fruit is dominated by an uncommon group of aroma compounds with a 2,5-dimethyl-3(H)-furanone structure. We report the characterization of an enzyme involved in the biosynthesis of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF; Furaneol), the key flavor compound in strawberries. Protein extracts were partially purified, and the observed distribution of enzymatic activity correlated with the presence of a single polypeptide of ?37 kD. Sequence analysis of two peptide fragments showed total identity with the protein sequence of a strongly ripening-induced, auxin-dependent putative quinone oxidoreductase, Fragaria ananassa quinone oxidoreductase (FaQR). The open reading frame of the FaQR cDNA consists of 969 bp encoding a 322amino acid protein with a calculated molecular mass of 34.3 kD. Laser capture microdissection followed by RNA extraction and amplification demonstrated the presence of FaQR mRNA in parenchyma tissue of the strawberry fruit. The FaQR protein was functionally expressed in Escherichia coli, and the monomer catalyzed the formation of HDMF. After chemical synthesis and liquid chromatographytandem mass spectrometry analysis, 4-hydroxy-5-methyl-2-methylene-3(2H)-furanone was confirmed as a substrate of FaQR and the natural precursor of HDMF. This study demonstrates the function of the FaQR enzyme in the biosynthesis of HDMF as enone oxidoreductase and provides a foundation for the improvement of strawberry flavor and the biotechnological production of HDMF. PMID:16517758

  17. FaQR, required for the biosynthesis of the strawberry flavor compound 4-hydroxy-2,5-dimethyl-3(2H)-furanone, encodes an enone oxidoreductase.

    PubMed

    Raab, Thomas; Lpez-Rez, Juan Antonio; Klein, Dorothe; Caballero, Jose Luis; Moyano, Enriqueta; Schwab, Wilfried; Muoz-Blanco, Juan

    2006-04-01

    The flavor of strawberry (Fragaria x ananassa) fruit is dominated by an uncommon group of aroma compounds with a 2,5-dimethyl-3(H)-furanone structure. We report the characterization of an enzyme involved in the biosynthesis of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF; Furaneol), the key flavor compound in strawberries. Protein extracts were partially purified, and the observed distribution of enzymatic activity correlated with the presence of a single polypeptide of approximately 37 kD. Sequence analysis of two peptide fragments showed total identity with the protein sequence of a strongly ripening-induced, auxin-dependent putative quinone oxidoreductase, Fragaria x ananassa quinone oxidoreductase (FaQR). The open reading frame of the FaQR cDNA consists of 969 bp encoding a 322-amino acid protein with a calculated molecular mass of 34.3 kD. Laser capture microdissection followed by RNA extraction and amplification demonstrated the presence of FaQR mRNA in parenchyma tissue of the strawberry fruit. The FaQR protein was functionally expressed in Escherichia coli, and the monomer catalyzed the formation of HDMF. After chemical synthesis and liquid chromatography-tandem mass spectrometry analysis, 4-hydroxy-5-methyl-2-methylene-3(2H)-furanone was confirmed as a substrate of FaQR and the natural precursor of HDMF. This study demonstrates the function of the FaQR enzyme in the biosynthesis of HDMF as enone oxidoreductase and provides a foundation for the improvement of strawberry flavor and the biotechnological production of HDMF. PMID:16517758

  18. Quick data evaluation inspired by human vision

    NASA Astrophysics Data System (ADS)

    Meinert, Dieter

    2014-05-01

    In environmental monitoring, small differences are expected in data allowing the discrimination of harmless from dangerous, e.g. discern passing trucks from an earth quake. For conventional data analysis it is a challenging problem to identify these signals in noisy data. Electronic data processing consumes extra time, or much energy when processed in parallel. This is not suitable for quick automatic decisions nor useful in nearly autonomous systems with very low energy budget. This paper presents methods inspired by human vision, applied to quickly determine the content of signals collected by a monitoring system. It is shown that the system is capable to distinguish different signals, using a simple filter-set.

  19. The molecular link between inefficient GluA2 Q/R site-RNA editing and TDP-43 pathology in motor neurons of sporadic amyotrophic lateral sclerosis patients.

    PubMed

    Yamashita, Takenari; Kwak, Shin

    2014-10-10

    TAR DNA-binding protein (TDP-43) pathology and reduced expression of adenosine deaminase acting on RNA 2 (ADAR2), which is the RNA editing enzyme responsible for adenosine-to-inosine conversion at the GluA2 glutamine/arginine (Q/R) site, concomitantly occur in the same motor neurons of amyotrophic lateral sclerosis (ALS) patients; this finding suggests a link between these two ALS-specific molecular abnormalities. AMPA receptors containing Q/R site-unedited GluA2 in their subunit assembly are Ca(2+)-permeable, and motor neurons lacking ADAR2 undergo slow death in conditional ADAR2 knockout (AR2) mice, which is a mechanistic ALS model in which the ADAR2 gene is targeted in cholinergic neurons. Moreover, deficient ADAR2 induced mislocalization of TDP-43 similar to TDP-43 pathology seen in the sporadic ALS patients in the motor neurons of AR2 mice. The abnormal mislocalization of TDP-43 specifically resulted from activation of the Ca(2+)-dependent serine protease calpain that specifically cleaved TDP-43 at the C-terminal region, and generated aggregation-prone N-terminal fragments. Notably, the N-terminal fragments of TDP-43 lacking the C-terminus were demonstrated in the brains and spinal cords of ALS patients. Because normalization of either the Ca(2+)-permeability of AMPA receptors or the calpain activity in the motor neurons normalized the subcellular localization of TDP-43 in AR2 mice, it is likely that exaggerated calpain-dependent TDP-43 fragments played a role at least in the initiation of TDP-43 pathology. Elucidation of the molecular cascade of neuronal death induced by ADAR2 downregulation could provide a new specific therapy for sporadic ALS. In this review, we summarized the work from our group on the role of inefficient GluA2 Q/R site-RNA editing and TDP-43 pathology in sporadic ALS, and discussed possible effects of inefficient ADAR2-mediated RNA editing in general. PMID:24355598

  20. Possible Quick-Clay Motion in Turbidity Currents.

    PubMed

    Kerr, P F

    1962-08-10

    Sensitive clay masses that lie dormant for years but, as the result of a sudden shock, become turbulent, flowing mud, have been called quick clays. Such masses may move in quantity over almost flat terrain, and they exhibit the power to transport buildings and other heavy objects considerable distances. On theoretical grounds it is proposed that one of the elements in the flowage of turbidity currents on the ocean floor may be comparable to quick-clay flowage on land. Both types of flowage cover considerable areas, may move on a comparatively flat base, exhibit fairly rapid motion, involve masses of colloidal-size clay and detritus, exhibit powerful transporting power, involve porous material of high water content, and are initiated by some form of trigger action. While experimental data are inadequate for proof, the parallelism in these two forms of erosional movement warrants the suggestion that the mobile mechanisms responsible for mass transport may be similar in the two cases. PMID:17779251

  1. The 1975 Insecticide, Herbicide, Fungicide Quick Guide.

    ERIC Educational Resources Information Center

    Page, Bill G.; Thomson, W. T.

    This is a quick guide for choosing a chemical to use to control a certain pest on a specific crop. Information in the book was obtained from manufacturers' labels and from the USDA and FDA pesticide summary. The book is divided into four parts: (1) insecticides, (2) herbicides, (3) fungicides, and (4) conversion tables. Each of the first three

  2. Quick Dissection of the Segmental Bronchi

    ERIC Educational Resources Information Center

    Nakajima, Yuji

    2010-01-01

    Knowledge of the three-dimensional anatomy of the bronchopulmonary segments is essential for respiratory medicine. This report describes a quick guide for dissecting the segmental bronchi in formaldehyde-fixed human material. All segmental bronchi are easy to dissect, and thus, this exercise will help medical students to better understand the

  3. Quick Facts for 2013-2014

    ERIC Educational Resources Information Center

    Alabama Department of Education, 2014

    2014-01-01

    The Alabama Department of Education presents "Quick Facts," an annual snapshot of general state statistics, facts about public schools, the State Board of Education, and general financial data. The data presented in this report covers the school year 2013-2014.

  4. Quick-disconnect coupling/filter

    NASA Technical Reports Server (NTRS)

    Jankowski, F.

    1977-01-01

    Two-part coupling system for hose lines combines both connection and filter in one fitting. Flared fittings make coupling less prone to leakage, and reduced number of components speeds operation. These features may make coupler useful with liquid-bulk carriers, where materials (e.g., milk, cooking oil, and liquid sugar) must be transferred quickly from vehicle to storage facility.

  5. Quick Reads: Using Ipads to Explore Parabolas

    ERIC Educational Resources Information Center

    Bixler, Sharon G.

    2014-01-01

    An iPad can be used to teach students to graph parabolas with ease and grasp vocabulary quickly. Parabolas come to life for students in this easily implemented activity described in this article. Teachers can use this tool in a fun and interactive way to not only address these graphing and vocabulary concepts but also introduce and explore

  6. JOC Be Nimble, JOC Be Quick

    ERIC Educational Resources Information Center

    Schreyer, Paul R.

    2012-01-01

    Given our aging and crowded schools, today's administrators have to focus their attention on modernizing facilities. The Job Order Contracting (JOC) procurement method allows school administrators to complete a large number of high quality maintenance projects quickly with a single, competitively bid contract. The JOC process fits schools' unique…

  7. Quick Reads: Using Ipads to Explore Parabolas

    ERIC Educational Resources Information Center

    Bixler, Sharon G.

    2014-01-01

    An iPad® can be used to teach students to graph parabolas with ease and grasp vocabulary quickly. Parabolas come to life for students in this easily implemented activity described in this article. Teachers can use this tool in a fun and interactive way to not only address these graphing and vocabulary concepts but also introduce and explore…

  8. JOC Be Nimble, JOC Be Quick

    ERIC Educational Resources Information Center

    Schreyer, Paul R.

    2012-01-01

    Given our aging and crowded schools, today's administrators have to focus their attention on modernizing facilities. The Job Order Contracting (JOC) procurement method allows school administrators to complete a large number of high quality maintenance projects quickly with a single, competitively bid contract. The JOC process fits schools' unique

  9. Quickly Approximating the Distance Between Two Objects

    NASA Technical Reports Server (NTRS)

    Hammen, David

    2009-01-01

    A method of quickly approximating the distance between two objects (one smaller, regarded as a point; the other larger and complexly shaped) has been devised for use in computationally simulating motions of the objects for the purpose of planning the motions to prevent collisions.

  10. The 1975 Insecticide, Herbicide, Fungicide Quick Guide.

    ERIC Educational Resources Information Center

    Page, Bill G.; Thomson, W. T.

    This is a quick guide for choosing a chemical to use to control a certain pest on a specific crop. Information in the book was obtained from manufacturers' labels and from the USDA and FDA pesticide summary. The book is divided into four parts: (1) insecticides, (2) herbicides, (3) fungicides, and (4) conversion tables. Each of the first three…

  11. Quick-Connect Heavy-Duty Fastener

    NASA Technical Reports Server (NTRS)

    Moore, D. M.

    1986-01-01

    Attaching device combines fast connection and disconnection with high strength. T-shaped stud engages groove in receptacle after one-quarter turn. Further turning tightens nut on receptacle. Like quarter-turn attaching devices, connected and disconnected quickly. Like threaded devices, adjusted to desired preload, withstand high loads, and accommodate wide range of grip lengths.

  12. Quick-Connect, Slow-Disconnect Bolt

    NASA Technical Reports Server (NTRS)

    Weddendorf, Bruce

    1995-01-01

    Proposed bolt functions similarly to device described in article "Quick-Connect, Slow-Disconnect Nut" (MFS-28833). Bolt installed in standard threaded hole simply by pushing it into hole. Once inserted, bolt withdrawn only by turning it in conventional way.

  13. Security authentication using phase-encoded nanoparticle structures and polarized light.

    PubMed

    Carnicer, Artur; Hassanfiroozi, Amir; Latorre-Carmona, Pedro; Huang, Yi-Pai; Javidi, Bahram

    2015-01-15

    Phase-encoded nanostructures such as quick response (QR) codes made of metallic nanoparticles are suggested to be used in security and authentication applications. We present a polarimetric optical method able to authenticate random phase-encoded QR codes. The system is illuminated using polarized light, and the QR code is encoded using a phase-only random mask. Using classification algorithms, it is possible to validate the QR code from the examination of the polarimetric signature of the speckle pattern. We used Kolmogorov-Smirnov statistical test and Support Vector Machine algorithms to authenticate the phase-encoded QR codes using polarimetric signatures. PMID:25679827

  14. High Pressure Quick Disconnect Particle Impact Tests

    NASA Technical Reports Server (NTRS)

    Rosales, Keisa R.; Stoltzfus, Joel M.

    2009-01-01

    NASA Johnson Space Center White Sands Test Facility (WSTF) performed particle impact testing to determine whether there is a particle impact ignition hazard in the quick disconnects (QDs) in the Environmental Control and Life Support System (ECLSS) on the International Space Station (ISS). Testing included standard supersonic and subsonic particle impact tests on 15-5 PH stainless steel, as well as tests performed on a QD simulator. This paper summarizes the particle impact tests completed at WSTF. Although there was an ignition in Test Series 4, it was determined the ignition was caused by the presence of a machining imperfection. The sum of all the test results indicates that there is no particle impact ignition hazard in the ISS ECLSS QDs. KEYWORDS: quick disconnect, high pressure, particle impact testing, stainless steel

  15. A quick accurate model of nozzle backflow

    NASA Technical Reports Server (NTRS)

    Kuharski, R. A.

    1991-01-01

    Backflow from nozzles is a major source of contamination on spacecraft. If the craft contains any exposed high voltages, the neutral density produced by the nozzles in the vicinity of the craft needs to be known in order to assess the possibility of Paschen breakdown or the probability of sheath ionization around a region of the craft that collects electrons for the plasma. A model for backflow has been developed for incorporation into the Environment-Power System Analysis Tool (EPSAT) which quickly estimates both the magnitude of the backflow and the species makeup of the flow. By combining the backflow model with the Simons (1972) model for continuum flow it is possible to quickly estimate the density of each species from a nozzle at any position in space. The model requires only a few physical parameters of the nozzle and the gas as inputs and is therefore ideal for engineering applications.

  16. Homestyle quick-cooking rice meal products.

    PubMed

    Azanza, Ma Patricia V; Basman, Irenei Camila V; Tinsay, Cathrina B; Tasarra, Christy G

    2002-01-01

    The study developed processes for quick-cooking rice meal products (QCRMP) paella and bringhe originally based on homestyle recipes. These QCRMPs consisted of basal quick-cooking waxy Malagkit Sungsong and non-waxy irrigated rice (IR) 42 Philippine rice cultivars, dehydrated vegetables, textured vegetable proteins (TVPs) as meat analogs, and seasonings. The rehydrated QCRMP paella and bringhe were found to be more acceptable than their conventionally prepared counterparts at 5% level of significance based on results of sensory acceptability evaluation by 50 consumer panelists. Improvement of the sensory attributes of the QCRMPs was ascribed to the use of alternate concentrates and powdered ingredients which imparted more intense flavors to the developed products than their fresh counterparts. PMID:11820099

  17. A Simple Method for Quick-Freezing

    PubMed Central

    BEARER, ELAINE L.; ORCI, LELIO

    2015-01-01

    In conventional freeze-fracture replicas produced from tissue cryoprotected with glycerol, the hydrophobic inner surfaces of membranes are revealed, but hydrophillic structures are obscured in the surrounding ice. Quick-freezing of tissue obviates the need for glycerol, which prevents the removal of this ice by etching or freeze-drying, but the major problem in freezing without glycerol cryoprotection is ice crystal formation. We describe here a simple method for quick-freezing tissue, in the absence of glycerol, on a nitrogen-cooled copper block with a hand-held specimen holder. This method freezes samples well enough to preserve molecular detail that can be revealed by subsequent etching. We show some examples of the quality of this freezing with respect to the visualization of molecular detail in isolated protein molecules such as ferritin and catalase. Furthermore, we show examples of in situ cellular structures that are revealed by this method, and we compare the structure seen in these replicas with structures preserved by quick-freezing at liquid helium temperatures. PMID:26549928

  18. Timed Bromocriptine-QR Therapy Reduces Progression of Cardiovascular Disease and Dysglycemia in Subjects with Well-Controlled Type 2 Diabetes Mellitus

    PubMed Central

    Chamarthi, Bindu; Gaziano, J. Michael; Blonde, Lawrence; Scranton, Richard E.; Ezrokhi, Michael; Rutty, Dean; Cincotta, Anthony H.

    2015-01-01

    Background. Type 2 diabetes (T2DM) patients, including those in good glycemic control, have an increased risk of cardiovascular disease (CVD). Maintaining good glycemic control may reduce long-term CVD risk. However, other risk factors such as elevated vascular sympathetic tone and/or endothelial dysfunction may be stronger potentiators of CVD. This study evaluated the impact of bromocriptine-QR, a sympatholytic dopamine D2 receptor agonist, on progression of metabolic disease and CVD in T2DM subjects in good glycemic control (HbA1c ?7.0%). Methods. 1834 subjects (1219 bromocriptine-QR; 615 placebo) with baseline HbA1c ?7.0% derived from the Cycloset Safety Trial (this trial is registered with ClinicalTrials.gov Identifier: NCT00377676), a 12-month, randomized, multicenter, placebo-controlled, double-blind study in T2DM, were evaluated. Treatment impact upon a prespecified composite CVD endpoint (first myocardial infarction, stroke, coronary revascularization, or hospitalization for angina/congestive heart failure) and the odds of losing glycemic control (HbA1c >7.0% after 52 weeks of therapy) were determined. Results. Bromocriptine-QR reduced the CVD endpoint by 48% (intention-to-treat; HR: 0.52 [0.28?0.98]) and 52% (on-treatment analysis; HR: 0.48 [0.24?0.95]). Bromocriptine-QR also reduced the odds of both losing glycemic control (OR: 0.63 (0.47?0.85), p = 0.002) and requiring treatment intensification to maintain HbA1c ?7.0% (OR: 0.46 (0.31?0.69), p = 0.0002). Conclusions. Bromocriptine-QR therapy slowed the progression of CVD and metabolic disease in T2DM subjects in good glycemic control. PMID:26060823

  19. A preliminary study of human paraoxonase and PON 1 L/M55-PON 1 Q/R 192 polymorphisms in Turkish patients with coronary artery disease.

    PubMed

    Kaman, Dilara; Ilhan, Necip; Metin, Kerem; Akbulut, Mehmet; Ustnda?, Bilal

    2009-03-01

    Paraoxonase 1 (PON 1) is a high-density lipoprotein (HDL)-associated enzyme with antioxidant function protecting low-density lipoprotein (LDL) from oxidation. PON 1 has two amino acid polymorphisms in coding region; L/M 55 and Q/R 192. These polymorphisms modulate paraoxonase activity of the enzyme. PON 1 activity decreases in coronary artery disease (CAD). In the present study, distribution of PON 1 L/M 55 and Q/R 192 polymorphisms and the effect of these polymorphisms on the activities of PON 1, and on the severity of CAD in 277 CAD (+) patient and 92 CAD (-) subjects were examined. PON 1 L/M 55 and Q/R 192 genotypes were determined by PCR, RFLP and agarose gel electrophoresis techniques. Genotype distributions and allele frequencies for PON 1 Q/R 192 polymorphism were not significantly different between controls and CAD (+) patient group (p > 0.05), but in genotype and allele distribution of PON 1 L/M55 polymorphism, there was significantly difference among groups (p < 0.05). Genotype distributions for both polymorphisms were not significantly different between subgroups of single-vessel disease (SVD), double-vessel disease (DVD) and triple-vessel disease (TVD). Serum PON 1 activity was lower in CAD (+) group than in controls and this was also statistically significant (p < 0.001). In both groups, the highest PON activities were detected in LL and RR genotypes. In summary, our results suggest that there is an association between the PON 1 L/M 55 polymorphism of paraoxonase and CAD in Turkish patients but not with PON 1 Q/R 192 polymorphism. However, it is hard to correlate these polymorphisms and severity of CAD. PMID:19226538

  20. Quick-setting concrete and a method for making quick-setting concrete

    DOEpatents

    Wagh, Arun S. (Joliet, IL); Singh, Dileep (Westmont, IL); Pullockaran, Jose D. (Trenton, NJ); Knox, Lerry (Glen Ellyn, IL)

    1997-01-01

    A method for producing quick setting concrete is provided comprising hydrng a concrete dry mixture with carbonate solution to create a slurry, and allowing the slurry to cure. The invention also provides for a quick setting concrete having a predetermined proportion of CaCO.sub.3 of between 5 and 23 weight percent of the entire concrete mixture, and whereby the concrete has a compression strength of approximately 4,000 pounds per square inch (psi) within 24 hours after pouring.

  1. The design and implementation of the parallel out-of-core ScaLAPACK LU, QR and Cholesky factorization routines

    SciTech Connect

    D`Azevedo, E.F.; Dongarra, J.J.

    1997-04-01

    This paper describes the design and implementation of three core factorization routines--LU, QR and Cholesky--included in the out-of-core extension of ScaLAPACK. These routines allow the factorization and solution of a dense system that is too large to fit entirely in physical memory. An image of the full matrix is maintained on disk and the factorization routines transfer sub-matrices into memory. The left-looking column-oriented variant of the factorization algorithm is implemented to reduce the disk I/O traffic. The routines are implemented using a portable I/O interface and utilize high performance ScaLAPACK factorization routines as in-core computational kernels. The authors present the details of the implementation for the out-of-core ScaLAPACK factorization routines, as well as performance and scalability results on the Intel Paragon.

  2. A QR accelerated volume-to-surface boundary condition for finite element solution of eddy current problems

    SciTech Connect

    White, D; Fasenfest, B; Rieben, R; Stowell, M

    2006-09-08

    We are concerned with the solution of time-dependent electromagnetic eddy current problems using a finite element formulation on three-dimensional unstructured meshes. We allow for multiple conducting regions, and our goal is to develop an efficient computational method that does not require a computational mesh of the air/vacuum regions. This requires a sophisticated global boundary condition specifying the total fields on the conductor boundaries. We propose a Biot-Savart law based volume-to-surface boundary condition to meet this requirement. This Biot-Savart approach is demonstrated to be very accurate. In addition, this approach can be accelerated via a low-rank QR approximation of the discretized Biot-Savart law.

  3. ATRC Neutron Detector Testing Quick Look Report

    SciTech Connect

    Troy C. Unruh; Benjamin M. Chase; Joy L. Rempe

    2013-08-01

    As part of the Advanced Test Reactor (ATR) National Scientific User Facility (NSUF) program, a joint Idaho State University (ISU) / French Alternative Energies and Atomic Energy Commission (CEA) / Idaho National Laboratory (INL) project was initiated in FY-10 to investigate the feasibility of using neutron sensors to provide online measurements of the neutron flux and fission reaction rate in the ATR Critical Facility (ATRC). A second objective was to provide initial neutron spectrum and flux distribution information for physics modeling and code validation using neutron activation based techniques in ATRC as well as ATR during depressurized operations. Detailed activation spectrometry measurements were made in the flux traps and in selected fuel elements, along with standard fission rate distribution measurements at selected core locations. These measurements provide additional calibration data for the real-time sensors of interest as well as provide benchmark neutronics data that will be useful for the ATR Life Extension Program (LEP) Computational Methods and V&V Upgrade project. As part of this effort, techniques developed by Prof. George Imel will be applied by Idaho State University (ISU) for assessing the performance of various flux detectors to develop detailed procedures for initial and follow-on calibrations of these sensors. In addition to comparing data obtained from each type of detector, calculations will be performed to assess the performance of and reduce uncertainties in flux detection sensors and compare data obtained from these sensors with existing integral methods employed at the ATRC. The neutron detectors required for this project were provided to team participants at no cost. Activation detectors (foils and wires) from an existing, well-characterized INL inventory were employed. Furthermore, as part of an on-going ATR NSUF international cooperation, the CEA sent INL three miniature fission chambers (one for detecting fast flux and two for detecting thermal flux) with associated electronics for assessment. In addition, Prof. Imel, ISU, has access to an inventory of Self-Powered Neutron Detectors (SPNDs) with a range of response times as well as Back-to-Back (BTB) fission chambers from prior research he conducted at the Transient REActor Test Facility (TREAT) facility and Neutron RADiography (NRAD) reactors. Finally, SPNDs from the National Atomic Energy Commission of Argentina (CNEA) were provided in connection with the INL effort to upgrade ATR computational methods and V&V protocols that are underway as part of the ATR LEP. Work during fiscal year 2010 (FY10) focussed on design and construction of Experiment Guide Tubes (EGTs) for positioning the flux detectors in the ATRC N-16 locations as well as obtaining ATRC staff concurrence for the detector evaluations. Initial evaluations with CEA researchers were also started in FY10 but were cut short due to reactor reliability issues. Reactor availability issues caused experimental work to be delayed during FY11/12. In FY13, work resumed; and evaluations were completed. The objective of this "Quick Look" report is to summarize experimental activities performed from April 4, 2013 through May 16, 2013.

  4. System Characterization Results for the QuickBird Sensor

    NASA Technical Reports Server (NTRS)

    Holekamp, Kara; Ross, Kenton; Blonski, Slawomir

    2007-01-01

    An overall system characterization was performed on several DigitalGlobe' QuickBird image products by the NASA Applied Research & Technology Project Office (formerly the Applied Sciences Directorate) at the John C. Stennis Space Center. This system characterization incorporated geopositional accuracy assessments, a spatial resolution assessment, and a radiometric calibration assessment. Geopositional assessments of standard georeferenced multispectral products were obtained using an array of accurately surveyed geodetic targets evenly spaced throughout a scene. Geopositional accuracy was calculated in terms of circular error. Spatial resolution of QuickBird panchromatic imagery was characterized based on edge response measurements using edge targets and the tilted-edge technique. Relative edge response was estimated as a geometric mean of normalized edge response differences measured in two directions of image pixels at points distanced from the edge by -0.5 and 0.5 of ground sample distance. A reflectance-based vicarious calibration approach, based on ground-based measurements and radiative transfer calculations, was used to estimate at-sensor radiance. These values were compared to those measured by the sensor to determine the sensor's radiometric accuracy. All imagery analyzed was acquired between fall 2005 and spring 2006. These characterization results were compared to previous years' results to identify any temporal drifts or trends.

  5. Simple New Method of Detecting Lies By Identifying Invisible Unique Physiological Reflex Response Appearing Often Less Than 10-15 Seconds on the Specific Parts of Face of Lying Person; Quick Screening of Potential Murderers & Problematic Persons.

    PubMed

    Omura, Yoshiaki; Nihrane, Abdallah; Lu, Dominic; Jones, Marilyn K; Shimotsuura, Yasuhiro; Ohki, Motomu

    2015-01-01

    Frequently, we cannot find any significant visible changes when somebody lies, but we found there are significant invisible changes appearing in specific areas of the face when somebody lies and their location often depends on whether the lie is serious with or without physical violence involvement. These abnormalities were detected non-invasively at areas: 1) lobules and c) a small round area of each upper lateral side of forehead; 2) the skin between the base of the 2 orifices of the nose and the upper end of upper lip and 3) Alae of both sides of nose. These invisible significant changes usually last less than 15 seconds after telling a lie. In these areas, Bi-Digital O-Ring Test (BDORT), which received a U.S. Patent in 1993, became significantly weak with an abnormal value of (-)7 and TXB2, measured non-invasively, was increased from 0.125-0.5ng to 12.5-15ng (within the first 5 seconds) and then went back down to less than 1ng (after 15 seconds). These unique changes can be documented semi-permanently by taking photographs of the face of people who tell a lie, within as short as 10 seconds after saying a lying statement. These abnormal responses appear in one or more of the above-mentioned 3 areas 1), 2) & 3). At least one abnormal pupil with BDORT of (-)8-(-)12 & marked reduction in Acetylcholine and abnormal increase in any of 3 Alzheimer's disease associated factors Apolipoprotein (Apo) E4, ?-Amyloid (1-42), Tau protein, viral and bacterial infections were detected in both pupils and forehead of murderers and people who often have problems with others. Analysis of well-known typical examples of recent mass murderers was presented as examples. Using these findings, potential murderers and people who are very likely to develop problems with others can be screened within 5-10 minutes by examining their facial photographs and signatures before school admission or employment. PMID:26369253

  6. Dairy manure nutrient analysis using quick tests.

    PubMed

    Singh, A; Bicudo, J R

    2005-05-01

    Rapid on-farm assessment of manure nutrient content can be achieved with the use of quick tests. These tests can be used to indirectly measure the nutrient content in animal slurries immediately before manure is applied on agricultural fields. The objective of this study was to assess the reliability of hydrometers, electrical conductivity meter and pens, and Agros N meter against standard laboratory methods. Manure samples were collected from 34 dairy farms in the Mammoth Cave area in central Kentucky. Regression equations were developed for combined and individual counties located In the area (Barren, Hart and Monroe). Our results indicated that accuracy in nutrient estimation could be improved if separate linear regressions were developed for farms with similar facilities in a county. Direct hydrometer estimates of total nitrogen were among the most accurate when separate regression equations were developed for each county (R2 = 0.61, 0.93, and 0.74 for Barren, Hart and Monroe county, respectively). Reasonably accurate estimates (R2 > 0.70) were also obtained for total nitrogen and total phosphorus using hydrometers, either by relating specific gravity to nutrient content or to total solids content. Estimation of ammoniacal nitrogen with Agros N meter and electrical conductivity meter/pens correlated well with standard laboratory determinations, especially while using the individual data sets from Hart County (R2 = 0.70 to 0.87). This study indicates that the use of quick test calibration equations developed for a small area or region where farms are similar in terms of manure handling and management, housing, and feed ration are more appropriate than using "universal" equations usually developed with combined data sets. Accuracy is expected to improve if individual farms develop their own calibration curves. Nevertheless, we suggest confidence intervals always be specified for nutrients estimated through quick testing for any specific region, county, or farm. PMID:15974265

  7. Quick-sealing design for radiological containment

    DOEpatents

    Rampolla, Donald S. (Pittsburgh, PA); Speer, Elmer (Ruffsdale, PA)

    1991-01-01

    A quick-sealing assembly and method for forming an adhesive seal on opposite sides of a mechanical seal for a flexible containment bag of the type used for working with radioactively contaminated objects. The assembly includes an elongated mechanical fastener having opposing engaging members affixed at a predetermined distance from each of the elongated edges, with an adhesive layer formed between the mechanical fastener and the elongated edge such that upon engagement of the mechanical fastener and adhesive layers to opposing containment fabric, a neat triple hermetic seal is formed.

  8. Quick-sealing design for radiological containment

    DOEpatents

    Rampolia, Donald S. (Pittsburgh, PA); Speer, Elmer (Ruffsdale, PA)

    1990-01-01

    A quick-sealing assembly and method for forming an adhesive seal on opposite sides of a mechanical seal for a flexible containment bag of the type used for working with radioactively contaminated objects. The assembly includes an elongated mechanical fastener having opposing engaging members affixed at a predetermined distance from each of the elongated edges, with an adhesive layer formed between the mechanical fastener and the elongated edge such that upon engagement of the mechanical fastener and adhesive layers to opposing containment fabric, a neat triple hermetic seal is formed.

  9. Fluid Quick Disconnects - ISS Lessons Learned

    NASA Technical Reports Server (NTRS)

    Bond, Timothy A.; Morrison, Russell H.

    2006-01-01

    The International Space Station has many fluid systems on the United States On-orbit Segment supporting thermal control, life support, extravehicular activities and payloads. To facilitate assembly and maintenance, fluid quick disconnect (QD) fittings are used throughout these systems for both internal pressurized modules and for external systems exposed to space. In the years since full scale development began on these QDs, a number of design and performance issues have surfaced and required substantial program funds and activity to rectify. This paper is intended to describe the most significant of these issues, their resolutions, and the lessons learned from the ISS experience.

  10. The NASA master directory: Quick reference guide

    NASA Technical Reports Server (NTRS)

    Satin, Karen (Editor); Kanga, Carol (Editor)

    1989-01-01

    This is a quick reference guide to the NASA Master Directory (MD), which is a free, online, multidisciplinary directory of space and Earth science data sets (NASA and non-NASA data) that are of potential interest to the NASA-sponsored research community. The MD contains high-level descriptions of data sets, other data systems and archives, and campaigns and projects. It provides mechanisms for searching for data sets by important criteria such as geophysical parameters, time, and spatial coverage, and provides information on ordering the data. It also provides automatic connections to a number of data systems such as the NASA Climate Data System, the Planetary Data System, the NASA Ocean Data System, the Pilot Land Data System, and others. The MD includes general information about many data systems, data centers, and coordinated data analysis projects, It represents the first major step in the Catalog Interoperability project, whose objective is to enable researchers to quickly and efficiently identify, obtain information about, and get access to space and Earth science data. The guide describes how to access, use, and exit the MD and lists its features.

  11. Program helps quickly calculate deviated well path

    SciTech Connect

    Gardner, M.P. )

    1993-11-22

    A BASIC computer program quickly calculates the angle and measured depth of a simple directional well given only the true vertical depth and total displacement of the target. Many petroleum engineers and geologists need a quick, easy method to calculate the angle and measured depth necessary to reach a target in a proposed deviated well bore. Too many of the existing programs are large and require much input data. The drilling literature is full of equations and methods to calculate the course of well paths from surveys taken after a well is drilled. Very little information, however, covers how to calculate well bore trajectories for proposed wells from limited data. Furthermore, many of the equations are quite complex and difficult to use. A figure lists a computer program with the equations to calculate the well bore trajectory necessary to reach a given displacement and true vertical depth (TVD) for a simple build plant. It can be run on an IBM compatible computer with MS-DOS version 5 or higher, QBasic, or any BASIC that does no require line numbers. QBasic 4.5 compiler will also run the program. The equations are based on conventional geometry and trigonometry.

  12. Quick-setting concrete and a method for making quick-setting concrete

    DOEpatents

    Wagh, A.S.; Singh, D.; Pullockaran, J.D.; Knox, L.

    1997-04-29

    A method for producing quick setting concrete is provided comprising mixing a concrete dry mixture with carbonate solution to create a slurry, and allowing the slurry to cure. The invention also provides for a quick setting concrete having a predetermined proportion of CaCO{sub 3} of between 5 and 23 weight percent of the entire concrete mixture, and whereby the concrete has a compression strength of approximately 4,000 pounds per square inch (psi) within 24 hours after pouring. 2 figs.

  13. Quickulum: A Process for Quick Response Curriculum Verification

    ERIC Educational Resources Information Center

    Lovett, Marvin; Jones, Irma S.; Stingley, Paul

    2010-01-01

    This paper addresses the need for a method of continual and frequent verification regarding course content taught in some post-secondary courses. With excessive amounts of information generated within the workplace, continual change exists for what is taught in some of our business courses. This is especially true for specific content areas such…

  14. Momentum kill procedure can quickly control blowouts

    SciTech Connect

    Watson, W.D. ); Moore, P. )

    1993-08-30

    The momentum kill method can help in quickly regaining control of a blowing well, providing the blowing well rate and fluid properties can be estimated reasonably. The momentum of the kill fluid counteracts and overcomes the flowing momentum of formation fluids. In other words, sufficient mud density pumped at a sufficient rate is directed into the flow stream to force the escaping fluid column back into the well bore. Sufficient kill fluid hydrostatic pressure must be stacked'' in the hole so that the well remains dead after the operation. The momentum kill is not a panacea for all blowouts. An assessment must be made of the potential problems unique to this method, and certain requirements must be met if the technique is to be successful. The paper discusses some of the considerations for evaluating the use of the momentum kill method.

  15. ACAA fly ash basics: quick reference card

    SciTech Connect

    2006-07-01

    Fly ash is a fine powdery material created when coal is burned to generate electricity. Before escaping into the environment via the utility stacks, the ash is collected and may be stored for beneficial uses or disposed of, if necessary. The use of fly ash provides environmental benefits, such as the conservation of natural resources, the reduction of greenhouse gas emissions and eliminating the needed for ash disposal in landfills. It is also a valuable mineral resource that is used in construction and manufacturing. Fly ash is used in the production of Portland cement, concrete, mortars and stuccos, manufactured aggregates along with various agricultural applications. As mineral filler, fly ash can be used for paints, shingles, carpet backing, plastics, metal castings and other purposes. This quick reference card is intended to provide the reader basic source, identification and composition, information specifically related to fly ash.

  16. Quick-Mixing Studies Under Reacting Conditions

    NASA Technical Reports Server (NTRS)

    Leong, May Y.; Samuelsen, G. S.

    1996-01-01

    The low-NO(x) emitting potential of rich-burn/quick-mix/lean-burn )RQL) combustion makes it an attractive option for engines of future stratospheric aircraft. Because NO(x) formation is exponentially dependent on temperature, the success of the RQL combustor depends on minimizing high temperature stoichiometric pocket formation in the quick-mixing section. An experiment was designed and built, and tests were performed to characterize reaction and mixing properties of jets issuing from round orifices into a hot, fuel-rich crossflow confined in a cylindrical duct. The reactor operates on propane and presents a uniform, non-swirling mixture to the mixing modules. Modules consisting of round orifice configurations of 8, 9, 10, 12, 14, and 18 holes were evaluated at a momentum-flux ratio of 57 and jet-to-mainstream mass-flaw ratio of 2.5. Temperatures and concentrations of O2, CO2, CO, HC, and NO(x) were obtained upstream, down-stream, and within the orifice plane to determine jet penetration as well as reaction processes. Jet penetration was a function of the number of orifices and affected the mixing in the reacting system. Of the six configurations tested, the 14-hole module produced jet penetration close to the module half-radius and yielded the best mixing and most complete combustion at a plane one duct diameter from the orifice leading edge. The results reveal that substantial reaction and heat release occur in the jet mixing zone when the entering effluent is hot and rich, and that the experiment as designed will serve to explore satisfactorily jet mixing behavior under realistic reacting conditions in future studies.

  17. D.P.I. Quick Notes; D.E. Quick Notes.

    ERIC Educational Resources Information Center

    Buckingham, Betty Jo

    This document contains 12 brief discussions of library-related topics with emphasis on school library media centers, which were originally published by the Iowa Department of Public Instruction (DPI) or the Iowa Department of Education (DE). These "Quick Notes" appear under the following headings: (1) "A Bill of Rights for the School Library Media

  18. Canonical polyadic decomposition of third-order semi-nonnegative semi-symmetric tensors using LU and QR matrix factorizations

    NASA Astrophysics Data System (ADS)

    Wang, Lu; Albera, Laurent; Kachenoura, Amar; Shu, Huazhong; Senhadji, Lotfi

    2014-12-01

    Semi-symmetric three-way arrays are essential tools in blind source separation (BSS) particularly in independent component analysis (ICA). These arrays can be built by resorting to higher order statistics of the data. The canonical polyadic (CP) decomposition of such semi-symmetric three-way arrays allows us to identify the so-called mixing matrix, which contains the information about the intensities of some latent source signals present in the observation channels. In addition, in many applications, such as the magnetic resonance spectroscopy (MRS), the columns of the mixing matrix are viewed as relative concentrations of the spectra of the chemical components. Therefore, the two loading matrices of the three-way array, which are equal to the mixing matrix, are nonnegative. Most existing CP algorithms handle the symmetry and the nonnegativity separately. Up to now, very few of them consider both the semi-nonnegativity and the semi-symmetry structure of the three-way array. Nevertheless, like all the methods based on line search, trust region strategies, and alternating optimization, they appear to be dependent on initialization, requiring in practice a multi-initialization procedure. In order to overcome this drawback, we propose two new methods, called [InlineEquation not available: see fulltext.] and [InlineEquation not available: see fulltext.], to solve the problem of CP decomposition of semi-nonnegative semi-symmetric three-way arrays. Firstly, we rewrite the constrained optimization problem as an unconstrained one. In fact, the nonnegativity constraint of the two symmetric modes is ensured by means of a square change of variable. Secondly, a Jacobi-like optimization procedure is adopted because of its good convergence property. More precisely, the two new methods use LU and QR matrix factorizations, respectively, which consist in formulating high-dimensional optimization problems into several sequential polynomial and rational subproblems. By using both LU and QR matrix factorizations, we aim at studying the influence of the used matrix factorization. Numerical experiments on simulated arrays emphasize the advantages of the proposed methods especially the one based on LU factorization, in the presence of high-variance model error and of degeneracies such as bottlenecks. A BSS application on MRS data confirms the validity and improvement of the proposed methods.

  19. 7 CFR 305.7 - Quick freeze treatment requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 5 2013-01-01 2013-01-01 false Quick freeze treatment requirements. 305.7 Section 305... INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE PHYTOSANITARY TREATMENTS 305.7 Quick freeze treatment requirements. Quick freeze treatment for fruits and vegetables imported into the United States or...

  20. 7 CFR 305.7 - Quick freeze treatment requirements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 5 2014-01-01 2014-01-01 false Quick freeze treatment requirements. 305.7 Section 305... INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE PHYTOSANITARY TREATMENTS 305.7 Quick freeze treatment requirements. Quick freeze treatment for fruits and vegetables imported into the United States or...

  1. 7 CFR 305.18 - Quick freeze treatment schedule.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 5 2010-01-01 2010-01-01 false Quick freeze treatment schedule. 305.18 Section 305.18 Agriculture Regulations of the Department of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE PHYTOSANITARY TREATMENTS Quick Freeze Treatments 305.18 Quick...

  2. 20 CFR 404.1619 - Quick disability determination process.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 2 2011-04-01 2011-04-01 false Quick disability determination process. 404... DISABILITY INSURANCE (1950- ) Determinations of Disability Quick Disability Determinations § 404.1619 Quick disability determination process. (a) If we identify a claim as one involving a high degree of...

  3. 20 CFR 416.1019 - Quick disability determination process.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 2 2013-04-01 2013-04-01 false Quick disability determination process. 416... FOR THE AGED, BLIND, AND DISABLED Determinations of Disability Quick Disability Determinations § 416.1019 Quick disability determination process. (a) If we identify a claim as one involving a high...

  4. 20 CFR 404.1619 - Quick disability determination process.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Quick disability determination process. 404... DISABILITY INSURANCE (1950- ) Determinations of Disability Quick Disability Determinations § 404.1619 Quick disability determination process. (a) If we identify a claim as one involving a high degree of...

  5. 20 CFR 416.1019 - Quick disability determination process.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Quick disability determination process. 416... FOR THE AGED, BLIND, AND DISABLED Determinations of Disability Quick Disability Determinations § 416.1019 Quick disability determination process. (a) If we identify a claim as one involving a high...

  6. 20 CFR 404.1619 - Quick disability determination process.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 2 2012-04-01 2012-04-01 false Quick disability determination process. 404... DISABILITY INSURANCE (1950- ) Determinations of Disability Quick Disability Determinations § 404.1619 Quick disability determination process. (a) If we identify a claim as one involving a high degree of...

  7. 20 CFR 416.1019 - Quick disability determination process.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 2 2011-04-01 2011-04-01 false Quick disability determination process. 416... FOR THE AGED, BLIND, AND DISABLED Determinations of Disability Quick Disability Determinations § 416.1019 Quick disability determination process. (a) If we identify a claim as one involving a high...

  8. 20 CFR 404.1619 - Quick disability determination process.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 2 2013-04-01 2013-04-01 false Quick disability determination process. 404... DISABILITY INSURANCE (1950- ) Determinations of Disability Quick Disability Determinations § 404.1619 Quick disability determination process. (a) If we identify a claim as one involving a high degree of...

  9. 20 CFR 416.1019 - Quick disability determination process.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 2 2014-04-01 2014-04-01 false Quick disability determination process. 416... FOR THE AGED, BLIND, AND DISABLED Determinations of Disability Quick Disability Determinations § 416.1019 Quick disability determination process. (a) If we identify a claim as one involving a high...

  10. 20 CFR 416.1019 - Quick disability determination process.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 2 2012-04-01 2012-04-01 false Quick disability determination process. 416... FOR THE AGED, BLIND, AND DISABLED Determinations of Disability Quick Disability Determinations § 416.1019 Quick disability determination process. (a) If we identify a claim as one involving a high...

  11. 20 CFR 404.1619 - Quick disability determination process.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 2 2014-04-01 2014-04-01 false Quick disability determination process. 404... DISABILITY INSURANCE (1950- ) Determinations of Disability Quick Disability Determinations § 404.1619 Quick disability determination process. (a) If we identify a claim as one involving a high degree of...

  12. QUICK - An interactive software environment for engineering design

    NASA Technical Reports Server (NTRS)

    Skinner, David L.

    1989-01-01

    QUICK, an interactive software environment for engineering design, provides a programmable FORTRAN-like calculator interface to a wide range of data structures as well as both built-in and user created functions. QUICK also provides direct access to the operating systems of eight different machine architectures. The evolution of QUICK and a brief overview of the current version are presented.

  13. Sarcomere Length and Tension Changes in Tetanized Frog Muscle Fibers after Quick Stretches and Releases

    NASA Astrophysics Data System (ADS)

    Sugi, Haruo; Kobayashi, Takakazu

    1983-10-01

    The sarcomere length changes in tetanized frog muscle fibers in response to quick fiber length changes were examined along the fiber length with a high-sensitivity laser diffraction technique. The experiments were only performed with muscle fibers in which the uniform orientation and sarcomere length of the component myofibrils were well preserved during a tetanus. When the sarcomere length changes were recorded near the fixed fiber end, the delay of the onset of sarcomere length change in response to the applied fiber length change tended to be longer than that of the onset of tension changes recorded at the fixed fiber end. The magnitude of sarcomere length changes was larger near the moving fiber end than near the fixed fiber end. In the case of quick releases, the resulting sarcomere shortening tended to outlast the fiber shortening, so that the quick tension recovery started during the sarcomere shortening. These results indicate (i) that the tension changes in response to quick fiber length changes may not give direct information about the cross-bridge properties and (ii) that the viscoelastic multisegmental nature of muscle fibers should be taken into consideration in interpreting the tension responses to quick length changes.

  14. Laboratory selection quickly erases historical differentiation.

    PubMed

    Fragata, Ins; Simes, Pedro; Lopes-Cunha, Miguel; Lima, Margarida; Kellen, Brbara; Brbaro, Margarida; Santos, Josiane; Rose, Michael R; Santos, Mauro; Matos, Margarida

    2014-01-01

    The roles of history, chance and selection have long been debated in evolutionary biology. Though uniform selection is expected to lead to convergent evolution between populations, contrasting histories and chance events might prevent them from attaining the same adaptive state, rendering evolution somewhat unpredictable. The predictability of evolution has been supported by several studies documenting repeatable adaptive radiations and convergence in both nature and laboratory. However, other studies suggest divergence among populations adapting to the same environment. Despite the relevance of this issue, empirical data is lacking for real-time adaptation of sexual populations with deeply divergent histories and ample standing genetic variation across fitness-related traits. Here we analyse the real-time evolutionary dynamics of Drosophila subobscura populations, previously differentiated along the European cline, when colonizing a new common environment. By analysing several life-history, physiological and morphological traits, we show that populations quickly converge to the same adaptive state through different evolutionary paths. In contrast with other studies, all analysed traits fully converged regardless of their association with fitness. Selection was able to erase the signature of history in highly differentiated populations after just a short number of generations, leading to consistent patterns of convergent evolution. PMID:24788553

  15. Laboratory Selection Quickly Erases Historical Differentiation

    PubMed Central

    Lopes-Cunha, Miguel; Lima, Margarida; Kellen, Bárbara; Bárbaro, Margarida; Santos, Josiane; Rose, Michael R.; Santos, Mauro; Matos, Margarida

    2014-01-01

    The roles of history, chance and selection have long been debated in evolutionary biology. Though uniform selection is expected to lead to convergent evolution between populations, contrasting histories and chance events might prevent them from attaining the same adaptive state, rendering evolution somewhat unpredictable. The predictability of evolution has been supported by several studies documenting repeatable adaptive radiations and convergence in both nature and laboratory. However, other studies suggest divergence among populations adapting to the same environment. Despite the relevance of this issue, empirical data is lacking for real-time adaptation of sexual populations with deeply divergent histories and ample standing genetic variation across fitness-related traits. Here we analyse the real-time evolutionary dynamics of Drosophila subobscura populations, previously differentiated along the European cline, when colonizing a new common environment. By analysing several life-history, physiological and morphological traits, we show that populations quickly converge to the same adaptive state through different evolutionary paths. In contrast with other studies, all analysed traits fully converged regardless of their association with fitness. Selection was able to erase the signature of history in highly differentiated populations after just a short number of generations, leading to consistent patterns of convergent evolution. PMID:24788553

  16. Quick management of accidental tritium exposure cases.

    PubMed

    Singh, Vishwanath P; Badiger, N M; Managanvi, S S; Bhat, H R

    2012-07-01

    Removal half-life (RHL) of tritium is one of the best means for optimising medical treatment, reduction of committed effective dose (CED) and quick/easy handling of a large group of workers for medical treatment reference. The removal of tritium from the body depends on age, temperature, relative humidity and daily rainfall; so tritium removal rate, its follow-up and proper data analysis and recording are the best techniques for management of accidental acute tritium exposed cases. The decision of referring for medical treatment or medical intervention (MI) would be based on workers' tritium RHL history taken from their bodies at the facilities. The workers with tritium intake up to 1 ALI shall not be considered for medical treatment as it is a derived limit of annual total effective dose. The short-term MI may be considered for tritium intake of 1-10 ALI; however, if the results show intake ?100 ALI, extended strong medical/therapeutic intervention may be recommended based on the severity of exposure for maximum CED reduction requirements and annual total effective dose limit. The methodology is very useful for pressurized heavy water reactors (PHWRs) which are mainly operated by Canada and India and future fusion reactor technologies. Proper management will optimise the cases for medical treatment and enhance public acceptance of nuclear fission and fusion reactor technologies. PMID:22349318

  17. Zebrafish Adar2 Edits the Q/R Site of AMPA Receptor Subunit gria2? Transcript to Ensure Normal Development of Nervous System and Cranial Neural Crest Cells

    PubMed Central

    Wang, Yi-Yun; Tzeng, Bo-Wei; Ou, Chun-Wen; Lau, Yi-Yan; Wu, Kan-Mai; Chan, Tzu-Min; Lin, Wei-Hsiang; Hwang, Sheng-Ping L.; Chow, Wei-Yuan

    2014-01-01

    Background Adar2 deaminates selective adenosines to inosines (A-to-I RNA editing) in the double-stranded region of nuclear transcripts. Although the functions of mouse Adar2 and its biologically most important substrate gria2, encoding the GluA2 subunit of AMPA (?-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid) receptor, have been extensively studied, the substrates and functions of zebrafish Adar2 remain elusive. Methods/Principal Findings Expression of Adar2 was perturbed in the adar2 morphant (adar2MO), generated by antisense morpholio oligonucleotides. The Q/R editing of gria2? was reduced in the adar2MO and was enhanced by overexpression of Adar2, demonstrating an evolutionarily conserved activity between zebrafish and mammalian Adar2 in editing the Q/R site of gria2. To delineate the role of Q/R editing of gria2? in the developmental defects observed in the adar2MO, the Q/R editing of gria2? was specifically perturbed in the gria2?QRMO, generated by a morpholio oligonucleotide complementary to the exon complementary sequence (ECS) required for the Q/R editing. Analogous to the adar2-deficient and Q/R-editing deficient mice displaying identical neurological defects, the gria2?QRMO and adar2MO displayed identical developmental defects in the nervous system and cranial cartilages. Knockdown p53 abolished apoptosis and partially suppressed the loss of spinal cord motor neurons in these morphants. However, reducing p53 activity neither replenished the brain neuronal populations nor rescued the developmental defects. The expressions of crestin and sox9b in the neural crest cells were reduced in the adar2MO and gria2?QRMO. Overexpressing the edited GluA2?R in the adar2MO restored normal expressions of cresting and sox9b. Moreover, overexpressing the unedited GluA2?Q in the wild type embryos resulted in reduction of crestin and sox9b expressions. These results argue that an elevated GluA2?Q level is sufficient for generating the cranial neural crest defects observed in the adar2MO. Our results present a link between dysfunction of AMPA receptors and defective development of the nervous system and cranial neural crest in the zebrafish. PMID:24818983

  18. Durability of Quick Reaction Satellite Antenna (QRSA) trunnion castings

    NASA Astrophysics Data System (ADS)

    Wang, Wego; Wells, Martin G.

    1993-03-01

    Repeated failures of quick reaction satellite antenna (QRSA) trunnion castings in the field caused alarming concerns about their durability. Arguments over the cause of the failures, ranging from improper installation, unbalanced and/or excess force to poor design and insufficient material strength, have been disputed between the contractor and the government engineers. Incipient melting during solution treatment was also suspected as one of the reasons responsible for cracking in the original aluminum castings. This study compared the microstructures of as-cast and heat-treated samples and concluded that incipient melting did not occur during solution treatment and thus was not the principal cause for cracking in the aluminum castings. Eventually, the light aluminum alloy was replaced by a heavier but stronger ductile iron. As a result, the durability of the QRSA trunnion casting has been significantly improved and the deficiency was remedied.

  19. QuickSmart: a basic academic skills intervention for middle school students with learning difficulties.

    PubMed

    Graham, Lorraine; Bellert, Anne; Thomas, Jenny; Pegg, John

    2007-01-01

    QuickSmart is a basic academic skills intervention designed for persistently low-achieving students in the middle years of schooling that aims to improve the automaticity of basic skills to improve higher-order processes, such as problem solving and comprehension, as measured on standardized tests. The QuickSmart instructional program consists of three structured, teacher- or teacher aide-directed, 30-minute, small-group lessons each week for approximately 26 weeks. In this study, 42 middle school students experiencing learning difficulties (LD) completed the QuickSmart reading program, and a further 42 students with LD took part in the QuickSmart mathematics program. To investigate the effects of the intervention, comparisons were made between the reading and mathematics progress of the intervention group and a group of 10 high-achieving and 10 average-achieving peers. The results indicated that although the standardized reading comprehension and mathematics scores of QuickSmart students remained below those of comparison students, they improved significantly from pretest to posttest. In contrast, the standardized scores of comparison students were not significantly different from pretest to posttest. On measures of response speed and accuracy gathered using the Cognitive Aptitude Assessment System (CAAS), QuickSmart students were able to narrow the gap between their performance and that of their high- and average-achieving peers. Implications are drawn regarding the importance of interventions that emphasize the automaticity of basic academic skills for students with learning difficulties. PMID:17915495

  20. Comparison of the main sequence of reflexive saccades and the quick phases of optokinetic nystagmus

    PubMed Central

    Garbutt, S.; Harwood, M.; Harris, C.

    2001-01-01

    BACKGROUND/AIMSAbnormalities in the saccadic main sequence are an important finding and may indicate pathology of the ocular motor periphery or central neurological disorders. In young or uncooperative patients it can be difficult eliciting a sufficient number of saccades to measure the main sequence. It is often assumed that the quick phases of optokinetic nystagmus (OKN) are identical to saccades. If this were the case, it would be feasible to use OKN, an involuntary response that is easily evoked, as a simple way of eliciting many saccades. The aim of this study was to determine whether reflexive saccades and the quick phases of OKN are indeed identical, and whether OKN quick phases could have a clinical role in identifying patients with slow saccades.?METHODSOKN and reflexive saccades were recorded from 10healthy adults using an infrared limbus eye tracker and bitemporal DC electro-oculography simultaneously. OKN was stimulated by rotating a full field patterned curtain around the subject at 10-50/s. Reflexive saccades were elicited to red LED targets at 5-20 eccentricity.?RESULTSOKN quick phases tended to have a longer duration compared to saccades, but these differences were not significant. OKN quick phases had a slightly lower peak velocity compared to saccades, which was statistically significant (p<0.05).?CONCLUSIONThe main sequence for duration is the same for reflexive saccades and OKN quick phases. The main sequence for peak velocity is slightly faster for reflexive saccades than OKN quick phases, but the difference is unlikely to be of clinical significance. As an illustration of the potential of this technique, the authors demonstrate that OKN quick phases show similar slowness to saccades in a child with brainstem pathology caused by Gaucher disease type III. It is concluded that recording OKN may be a simple clinical means for approximating the main sequence.?? PMID:11734524

  1. Act Quickly! Seconds Count! Second Edition.

    ERIC Educational Resources Information Center

    Ogden, Bob; Hayter, Roy, Ed.

    This booklet is designed to help hotel employees know what to do if a fire breaks out in the hotel. It also gives hints and suggestions that will help employees to reduce the risk of a fire occurring. Topics are as follows: an employee's responsibility if a fire breaks out; procedures to follow in the event of fire; mapping fire exits and escape

  2. Quick Phases of Infantile Nystagmus Show the Saccadic Inhibition Effect

    PubMed Central

    Harrison, James J.; Sumner, Petroc; Dunn, Matt J.; Erichsen, Jonathan T.; Freeman, Tom C. A.

    2015-01-01

    Purpose. Infantile nystagmus (IN) is a pathological, involuntary oscillation of the eyes consisting of slow, drifting eye movements interspersed with rapid reorienting quick phases. The extent to which quick phases of IN are programmed similarly to saccadic eye movements remains unknown. We investigated whether IN quick phases exhibit ‘saccadic inhibition,' a phenomenon typically related to normal targeting saccades, in which the initiation of the eye movement is systematically delayed by task-irrelevant visual distractors. Methods. We recorded eye position from 10 observers with early-onset idiopathic nystagmus while task-irrelevant distractor stimuli were flashed along the top and bottom of a large screen at ±10° eccentricity. The latency distributions of quick phases were measured with respect to these distractor flashes. Two additional participants, one with possible albinism and one with fusion maldevelopment nystagmus syndrome, were also tested. Results. All observers showed that a distractor flash delayed the execution of quick phases that would otherwise have occurred approximately 100 ms later, exactly as in the standard saccadic inhibition effect. The delay did not appear to differ between the two main nystagmus types under investigation (idiopathic IN with unidirectional and bidirectional jerk). Conclusions. The presence of the saccadic inhibition effect in IN quick phases is consistent with the idea that quick phases and saccades share a common programming pathway. This could allow quick phases to take on flexible, goal-directed behavior, at odds with the view that IN quick phases are stereotyped, involuntary eye movements. PMID:25670485

  3. Using Quick Writes as a Classroom Assessment Tool: Prospects and Problems

    ERIC Educational Resources Information Center

    Green, Susan K.; Smith, Julian, III; Brown, E. Kenyon

    2007-01-01

    Educators are currently exploring the expanded use of a variety of new assessment tools in the classroom in response to pressures to enhance student learning. The present study examined quick writes as a tool in the context of third-grade classroom assessment. Third-grade teachers administered the same brief writing probe before and after students

  4. QUICK (QUick Index to Caduceus Knowledge): using the INTERNIST-1/CADUCEUS knowledge base as an electronic textbook of medicine.

    PubMed

    First, M B; Soffer, L J; Miller, R A

    1985-04-01

    QUICK (QUick Index to Caduceus Knowledge), is a prototypical user-friendly access system which adapts the INTERNIST-1/CADUCEUS knowledge base for use as an electronic textbook of medicine. The QUICK program can be used both as a diagnostic aid and a teaching tool in the field of internal medicine. A preliminary evaluation of a prototypical version of QUICK was conducted in order to identify its strengths and weaknesses. QUICK was made available to the medical housestaff at three Pittsburgh area teaching hospitals for a period of 2 months. Most users felt QUICK was educational and wanted future access to the system. An examination of log files revealed the users' most frequently encountered difficulties. Using the INTERNIST-I knowledge base as an electronic textbook expands the project's intended audience by providing clinical support for a broad group of diagnostic problems. PMID:3886276

  5. Urban mockingbirds quickly learn to identify individual humans

    PubMed Central

    Levey, Douglas J.; Londoo, Gustavo A.; Ungvari-Martin, Judit; Hiersoux, Monique R.; Jankowski, Jill E.; Poulsen, John R.; Stracey, Christine M.; Robinson, Scott K.

    2009-01-01

    Practically all animals are affected by humans, especially in urban areas. Although most species respond negatively to urbanization, some thrive in human-dominated settings. A central question in urban ecology is why some species adapt well to the presence of humans and others do not. We show that Northern Mockingbirds (Mimus polyglottos) nesting on the campus of a large university rapidly learn to assess the level of threat posed by different humans, and to respond accordingly. In a controlled experiment, we found that as the same human approached and threatened a nest on 4 successive days, mockingbirds flushed from their nest at increasingly greater distances from that human. A different human approaching and threatening the nest identically on the fifth day elicited the same response as the first human on the first day. Likewise, alarm calls and attack flights increased from days 14 with the first human, and decreased on day 5 with the second human. These results demonstrate a remarkable ability of a passerine bird to distinguish one human from thousands of others. Also, mockingbirds learned to identify individual humans extraordinarily quickly: after only 2 30-s exposures of the human at the nest. More generally, the varying responses of mockingbirds to intruders suggests behavioral flexibility and a keen awareness of different levels of threat posed by individuals of another species: traits that may predispose mockingbirds and other species of urban wildlife to successful exploitation of human-dominated environments. PMID:19451622

  6. Induced loss of ADAR2 engenders slow death of motor neurons from Q/R site-unedited GluR2.

    PubMed

    Hideyama, Takuto; Yamashita, Takenari; Suzuki, Takeshi; Tsuji, Shoji; Higuchi, Miyoko; Seeburg, Peter H; Takahashi, Ryosuke; Misawa, Hidemi; Kwak, Shin

    2010-09-01

    GluR2 is a subunit of the AMPA receptor, and the adenosine for the Q/R site of its pre-mRNA is converted to inosine (A-to-I conversion) by the enzyme called adenosine deaminase acting on RNA 2 (ADAR2). Failure of A-to-I conversion at this site affects multiple AMPA receptor properties, including the Ca(2+) permeability of the receptor-coupled ion channel, thereby inducing fatal epilepsy in mice (Brusa et al., 1995; Feldmeyer et al., 1999). In addition, inefficient GluR2 Q/R site editing is a disease-specific molecular dysfunction found in the motor neurons of sporadic amyotrophic lateral sclerosis (ALS) patients (Kawahara et al., 2004). Here, we generated genetically modified mice (designated as AR2) in which the ADAR2 gene was conditionally targeted in motor neurons using the Cre/loxP system. These AR2 mice showed a decline in motor function commensurate with the slow death of ADAR2-deficient motor neurons in the spinal cord and cranial motor nerve nuclei. Notably, neurons in nuclei of oculomotor nerves, which often escape degeneration in ALS, were not decreased in number despite a significant decrease in GluR2 Q/R site editing. All cellular and phenotypic changes in AR2 mice were prevented when the mice carried endogenous GluR2 alleles engineered to express edited GluR2 without ADAR2 activity (Higuchi et al., 2000). Thus, loss of ADAR2 activity causes AMPA receptor-mediated death of motor neurons. PMID:20826656

  7. Effect of paraoxonase 1 192 Q/R polymorphism on paraoxonase and acetylcholinesterase enzyme activities in a Turkish population exposed to organophosphate.

    PubMed

    Sunay, Seda Zengin; Kayaalt?, Zeliha; Bayrak, Tlin; Sylemezo?lu, Tlin

    2015-12-01

    Organophosphate (OP) compounds are the most commonly used pesticide groups and they are commercially used in the market for local and industrial purposes. Paraoxonase 1 (PON1) enzyme plays an important role in biotransformation of OP compounds, which shows toxic effects via inhibiting the acetylcholinesterase (AChE). The aim of this study was to determine the effects of PON1 gene polymorphism and its effects on PON and AChE enzyme activities in individuals who were exposed to organophosphorus insecticides due to occupational reasons, and to profile the probability of susceptibility to organophosphorus compounds. For this purpose, 54 individuals who were exposed to OPs and 54 healthy unrelated controls were studied. First, PON1 and AChE enzyme activities were measured. Second, PON1 192 Q/R polymorphism was determined by standard polymerase chain reaction-restriction fragment length polymorphism technique. When the PON1 192 Q/R polymorphism was compared with PON1 enzyme activities, statistically significant association was found in both OP-exposed and control groups (p < 0.05). PON1 192 R(+) (QR + RR genotypes) genotype carriers had higher PON1 activities than 192 R(-) (QQ) genotype carriers. On the other hand, results were statistically analyzed in terms of AChE enzyme activities and there were statistically significant differences only in the OP-exposed group (p < 0.05). The mean AChE concentration in the OP-exposed group was determined as 33.79 6.84 U/g haemoglobin (Hb) for PON1 192 R(+) carriers and 30.37 7.62 U/g Hb for PON1 192 R(+) carriers. As a conclusion, PON1 and AChE activities were increasing according to the genotypes found in individuals having been exposed to OPs at a chronic level; 192 R(+) > 192 R(-), respectively. PMID:23625910

  8. 7 CFR 305.7 - Quick freeze treatment requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 5 2011-01-01 2011-01-01 false Quick freeze treatment requirements. 305.7 Section 305.7 Agriculture Regulations of the Department of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE PHYTOSANITARY TREATMENTS § 305.7 Quick freeze...

  9. Quick Quality Check for Infant and Toddler Programs.

    ERIC Educational Resources Information Center

    Knoll, Michelle; O'Brien, Marion

    Intended for use by childcare center directors, this guide presents the Quick Quality Check, a practical method for measuring and improving the quality of care in infant/toddler classrooms. The four chapters of the guide discuss the specifics of the Quick Quality Check method for both infants and toddlers, including the instrument development, as…

  10. 48 CFR 42.708 - Quick-closeout procedure.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Quick-closeout procedure. 42.708 Section 42.708 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION CONTRACT MANAGEMENT CONTRACT ADMINISTRATION AND AUDIT SERVICES Indirect Cost Rates 42.708 Quick-closeout procedure....

  11. 28 CFR 8.6 - Quick-release authority.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Quick-release authority. 8.6 Section 8.6 Judicial Administration DEPARTMENT OF JUSTICE FBI FORFEITURE AUTHORITY FOR CERTAIN STATUTES § 8.6 Quick-release authority. Where the forfeiture proceedings are administrative, the Special Agent in Charge,...

  12. 28 CFR 8.6 - Quick-release authority.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 1 2011-07-01 2011-07-01 false Quick-release authority. 8.6 Section 8.6 Judicial Administration DEPARTMENT OF JUSTICE FBI FORFEITURE AUTHORITY FOR CERTAIN STATUTES § 8.6 Quick-release authority. Where the forfeiture proceedings are administrative, the Special Agent in Charge,...

  13. 28 CFR 8.6 - Quick-release authority.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 1 2012-07-01 2012-07-01 false Quick-release authority. 8.6 Section 8.6 Judicial Administration DEPARTMENT OF JUSTICE FBI FORFEITURE AUTHORITY FOR CERTAIN STATUTES § 8.6 Quick-release authority. Where the forfeiture proceedings are administrative, the Special Agent in Charge,...

  14. Quick Prototyping of Educational Software: An Object-Oriented Approach.

    ERIC Educational Resources Information Center

    Wong, Simon C-H

    1994-01-01

    Introduces and demonstrates a quick-prototyping model for educational software development that can be used by teachers developing their own courseware using an object-oriented programming system. Development of a courseware package called "The Match-Maker" is explained as an example that uses HyperCard for quick prototyping. (Contains 21

  15. 7 CFR 305.7 - Quick freeze treatment requirements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 5 2012-01-01 2012-01-01 false Quick freeze treatment requirements. 305.7 Section 305.7 Agriculture Regulations of the Department of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE PHYTOSANITARY TREATMENTS 305.7 Quick freeze...

  16. Developing rich and quickly accessed knowledge of an artificial grammar.

    PubMed

    Sallas, Bill; Mathews, Robert C; Lane, Sean M; Sun, Ron

    2007-12-01

    In contrast to prior research, our results demonstrate that it is possible to acquire rich, highly accurate, and quickly accessed knowledge of an artificial grammar. Across two experiments, we trained participants by using a string-edit task and highlighting relatively low-level (letters), medium-level (chunks), or high-level (structural; i.e., grammar diagram) information to increase the efficiency of grammar acquisition. In both experiments, participants who had structural information available during training generated more highly accurate strings during a cued generation test than did those in other conditions, with equivalent speed. Experiment 2 revealed that structural information enhanced acquisition only when relevant features were highlighted during the task using animation. We suggest that two critical components for producing enhanced performance from provided model-based knowledge involve (1) using the model to acquire experience-based knowledge, rather than using a representation of the model to generate responses, and (2) receiving that knowledge precisely when it is needed during training. PMID:18265626

  17. QR-on-a-chip: a computer-recognizable micro-pattern engraved microfluidic device for high-throughput image acquisition.

    PubMed

    Yun, Kyungwon; Lee, Hyunjae; Bang, Hyunwoo; Jeon, Noo Li

    2016-02-21

    This study proposes a novel way to achieve high-throughput image acquisition based on a computer-recognizable micro-pattern implemented on a microfluidic device. We integrated the QR code, a two-dimensional barcode system, onto the microfluidic device to simplify imaging of multiple ROIs (regions of interest). A standard QR code pattern was modified to arrays of cylindrical structures of polydimethylsiloxane (PDMS). Utilizing the recognition of the micro-pattern, the proposed system enables: (1) device identification, which allows referencing additional information of the device, such as device imaging sequences or the ROIs and (2) composing a coordinate system for an arbitrarily located microfluidic device with respect to the stage. Based on these functionalities, the proposed method performs one-step high-throughput imaging for data acquisition in microfluidic devices without further manual exploration and locating of the desired ROIs. In our experience, the proposed method significantly reduced the time for the preparation of an acquisition. We expect that the method will innovatively improve the prototype device data acquisition and analysis. PMID:26728124

  18. Modeling Laser Wake Field Acceleration with the Quasi-Static PIC Code QuickPIC

    SciTech Connect

    Vieira, J.; Antonsen, T. Jr.; Cooley, J.; Silva, L. O.

    2006-11-27

    We use the Quasi-static Particle-In-Cell code QuickPIC to model laser wake field acceleration, in both uniform and parabolic plasma channels within current state of the art experimental laser and plasma parameters. QuickPIC uses the quasi-static approximation, which allows the separation of the plasma and laser evolution, as they respond in different time scales. The laser is evolved with a larger time step, that correctly resolves distances of the order of the Rayleigh length, according to the ponderomotive guiding center approximation, while the plasma response is calculated through a quasi-static field solver for each transverse 2d slice. We have performed simulations that show very good agreement between QuickPIC and three dimensional simulations using the full PIC code OSIRIS. We have scanned laser intensities from those for which linear plasma waves are excited to those for which the plasma response is highly nonlinear. For these simulations, QuickPIC was 2-3 orders of magnitude faster than OSIRIS.

  19. Mercury Quick Facts: Health Effects of Mercury Exposure

    MedlinePLUS

    Mercury Quick Facts Health Effects of Mercury Exposure What is Elemental Mercury? Elemental (metallic) mercury is the shiny, silver-gray metal found in thermometers, barometers, and thermostats and other ...

  20. Near-Centenarian Makes Friends Quickly in New Home

    MedlinePLUS

    ... Living Near-Centenarian Makes Friends Quickly in New Home Past Issues / Summer 2009 Table of Contents For ... who is thinking about transitioning from their own home to an assisted living facility, her answer was ...

  1. Preschool Intellectual Assessment With the Ammons Quick Test

    ERIC Educational Resources Information Center

    Hoffman, Seymour; And Others

    1975-01-01

    The Quick Test, Form I (QT) and the Stanford-Binet Intelligence Scale, Form L-M (SB) were administered to 70 preschool children. Results raise serious doubt about the validity of the QT functioning. Further research is indicated. (Author)

  2. Comparing Tests for Diabetes and Prediabetes: A Quick Reference Guide

    MedlinePLUS

    ... to 5 p.m. eastern time, M-F Diabetes Disease Organizations ​There are many organizations who provide ... 293 KB). Alternate Language URL Comparing Tests for Diabetes and Prediabetes: A Quick Reference Guide Page Content ...

  3. Quick Guide to Health Literacy and Older Adults

    MedlinePLUS

    ... Disease Prevention and Health Promotion Quick Guide to Health Literacy and Older Adults skip to content ODPHP Health Communication Healthy People 2010 Health Communication Focus Area Health Literacy Improvement Consumer and Patient e-Health Resources Health ...

  4. Use of interactive graphics to analyze QUICK-geometry

    NASA Technical Reports Server (NTRS)

    Townsend, J. C.

    1981-01-01

    The QUICK InterActive Graphics Analysis (QUIAGA) program and its advantages for displaying aircraft QUICK-geometry to aid in detection and analysis of errors are described. The QUICK-geometry system generates a completely analytical aircraft geometry description for use by finite-difference flow codes. The QUIAGA program was developed to exercise the QUICK-geometry subroutines to examine the analytic definition of a configuration by plotting cross sections and body lines on a graphics terminal. A number of options are available, including multiple cross-section views, hidden-line removal, and display of control point locations. Use of these options for the detection and analysis of errors in the QUICK-geometry definition can be of great assistance in speedily arriving at a correct analytical geometry description for flow-field computation. The QUIAGA program has been used in developing a QUICK-geometry model of the NASA Space Shuttle Orbiter, and examples from this experience are given to show some of the program's features. Details of program usage and an example session are given in the appendixes.

  5. Preliminar Performance Assessment of NeQuick2-Plas Model

    NASA Astrophysics Data System (ADS)

    Migoya Orue, Yenca; Gulyaeva, Tamara; Nava, Bruno; Radicella, Sandro M.

    NeQuick is a semi-empirical model that describes spatial and temporal variations of the ionospheric electron density at global scale. It was jointly developed by the Aeronomy and Radiopropagation Laboratory of the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy and the Institute for Geophysics, Astrophysics and Meteorology of the University of Graz, Austria. The model is able to calculate the electron concentration at any given location in the ionosphere as well as the total electron content (TEC) along any ground-to-satellite ray-path. One of the recent major changes introduced in the NeQuick2 model is the integration of the plasmasphere formulation of IRI-Plas that gave origin to the NeQuick-Plas. The plasmasphere extension of IRI, IRI-Plas, is an empirical model derived from many years of measurements designed to represent typical ionospheric conditions as a function of geomagnetic and solar activity. For the smooth fitting of the NeQuick and plasmasphere models, the half-peak density point, h0.5p is searched iteratively from NeQuick topside electron density profile. The present study uses median values of IGS combined global vertical TEC maps as reference to be compared with NeQuick 2 and NeQuick-Plas models. Representative months of years of high, moderate and low solar activity have been utilized. The preliminary results indicate an improvement of the NeQuick 2 -Plas with respect to NeQuick 2 especially during periods of high and moderate solar activity as indicated by the average and standard deviation of the TEC error distributions (e.g. IGS-NeQ2 mean is -9.73, standard deviation is 5.6 while IGS-NePlas mean is 2.87, with a standard deviation of 4.8 for October 2000; IGS-NeQ2 mean is -5.28, standard deviation is 0.37 while IGS-NeQ-Plas mean is 1.25, standard deviation of 0.49 for Jul 2003). During low solar activity (year 2008), instead, there is a slight tendency of NeQuick-Plas to overestimate TEC values and so increase the disagreements with IGS VTEC maps. The similarities and differences found between the models performance by UT and modip are also analyzed and discussed.

  6. Quick reconnection triggering in an ion-scale current

    NASA Astrophysics Data System (ADS)

    Shinohara, I.

    2003-04-01

    Carrying out a large scale 3D full particle simulation, we have recently found that quick triggering of magnetic reconnection is possible even in an ion-scale current sheet. If one thinks of the two-dimensional tearing mode as the triggering agent of magnetic reconnection in a current sheet of the Harris-type, the current sheet has to thin down to the electron scale for the instability to grow quickly. When the third dimension in the current-wise direction is taken into account, we have found that reconnection can be triggered very quickly. For the quick triggering, the lower-hybrid drift waves excited at the edges of the current sheet is indispensable. This wave excitation brings about formation of a thin current layer sustained by accelerated electrons. The inductive electric field, which is generated through change of the current profile, can efficiently accelerate meandering electrons around the magnetic neutral sheet. As a result, electric current in the thin layer is mostly carried by non-adiabatic electrons. Thus, the electron acceleration is playing a crucial role in making the quick triggering available. While it is unlikely that the mechanism studied here will work in its present form, we think that it still remains as a key element in a chain of processes that triggers reconnection in the real space.

  7. Control Scheme for Quickly Starting X-ray Tube

    NASA Astrophysics Data System (ADS)

    Nakahama, Masayuki; Nakanishi, Toshiki; Ishitobi, Manabu; Ito, Tuyoshi; Hosoda, Kenichi

    A control scheme for quickly starting a portable X-ray generator used in the livestock industry is proposed in this paper. A portable X-ray generator used to take X-ray images of animals such as horses, sheep and dogs should be capable of starting quickly because it is difficult for veterinarians to take X-ray images of animals at their timing. In order to develop a scheme for starting the X-ray tube quickly, it is necessary to analysis the X-ray tube. However, such an analysis has not been discussed until now. First, the states of an X-ray tube are classified into the temperature-limited state and the space-charge-limited state. Furthermore, existence of mixed state that comprises both is newly proposed in this paper. From these analyses, a novel scheme for quickly starting an X-ray generator is proposed; this scheme is considered with the characteristics of the X-ray tube. The proposed X-ray system that is capable of starting quickly is evaluated on the basis of experimental results.

  8. Four-dimensional key design in amplitude, phase, polarization and distance for optical encryption based on polarization digital holography and QR code.

    PubMed

    Lin, Chao; Shen, Xueju; Li, Baochen

    2014-08-25

    We demonstrate that all parameters of optical lightwave can be simultaneously designed as keys in security system. This multi-dimensional property of key can significantly enlarge the key space and further enhance the security level of the system. The single-shot off-axis digital holography with orthogonal polarized reference waves is employed to perform polarization state recording on object wave. Two pieces of polarization holograms are calculated and fabricated to be arranged in reference arms to generate random amplitude and phase distribution respectively. When reconstruction, original information which is represented with QR code can be retrieved using Fresnel diffraction with decryption keys and read out noise-free. Numerical simulation results for this cryptosystem are presented. An analysis on the key sensitivity and fault tolerance properties are also provided. PMID:25321276

  9. Toward using direct methods in seismic tomography: Computation of the full resolution matrix using high performance computing and sparse QR factorization

    NASA Astrophysics Data System (ADS)

    Bogiatzis, Petros; Ishii, Miaki; Davis, Timothy A.

    2016-02-01

    For more than two decades, the number of data and model parameters in seismic tomography problems has exceeded the available computational resources required for application of direct computational methods, leaving iterative solvers the only option. One disadvantage of the iterative techniques is that the inverse of the matrix that defines the system is not explicitly formed, and as a consequence, the model resolution and covariance matrices cannot be computed. Despite the significant effort in finding computationally affordable approximations of these matrices, challenges remain, and methods such as the checkerboard resolution tests continue to be used. Based upon recent developments in sparse algorithms and high performance computing resources, we show that direct methods are becoming feasible for large seismic tomography problems. We demonstrate the application of QR factorization in solving the regional P-wave structure and computing the full resolution matrix with 267,520 model parameters.

  10. NeQuick bottomside analysis at low latitudes

    NASA Astrophysics Data System (ADS)

    Coïsson, P.; Nava, B.; Radicella, S. M.; Oladipo, O. A.; Adeniyi, J. O.; Gopi Krishna, S.; Rama Rao, P. V. S.; Ravindran, S.

    2008-12-01

    NeQuick ionospheric electron density model produces the full electron density profile in the ionosphere using the F2 layer peak values (foF2 and hmF2) as anchor points. Each part of the profile is modeled using Epstein layer formalism. Simple empirical relations are used to compute the thicknesses of each semi-Epstein layer. It has been observed that when NeQuick model is used to estimate total electron content at low latitudes the modeled values tend to underestimate the observed ones. Beside the F2 peak values, the most important profile parameter is the thickness of the F2 layer bottomside. The present study focuses on NeQuick model behavior at low latitudes comparing modeled profiles parameters with the ones extracted from experimental data mostly from African and Indian sector at different levels of solar activity and different time of the day. Possible model improvements are discussed.

  11. PARENT Quick Blind Round-Robin Test Report

    SciTech Connect

    Braatz, Brett G.; Heasler, Patrick G.; Meyer, Ryan M.

    2014-09-30

    The U.S. Nuclear Regulatory Commission has established the Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT) whose goal is to investigate the effectiveness of current and novel nondestructive examination procedures and techniques to find flaws in nickel-alloy welds and base materials. This is to be done by conducting a series of open and blind international round-robin tests on a set of piping components that include large-bore dissimilar metal welds, small-bore dissimilar metal welds, and bottom-mounted instrumentation penetration welds. The blind testing is being conducted in two segments, one is called Quick-Blind and the other is called Blind. The Quick-Blind testing and destructive analysis of the test blocks has been completed. This report describes the four Quick-Blind test blocks used, summarizes their destructive analysis, gives an overview of the nondestructive evaluation (NDE) techniques applied, provides an analysis inspection data, and presents the conclusions drawn.

  12. Quick Attach Docking Interface for Lunar Electric Rover

    NASA Technical Reports Server (NTRS)

    Schuler, Jason M.; Nick, Andrew J.; Immer, Christopher; Mueller, Robert P.

    2010-01-01

    The NASA Lunar Electric Rover (LER) has been developed at Johnson Space Center as a next generation mobility platform. Based upon a twelve wheel omni-directional chassis with active suspension the LER introduces a number of novel capabilities for lunar exploration in both manned and unmanned scenarios. Besides being the primary vehicle for astronauts on the lunar surface, LER will perform tasks such as lunar regolith handling (to include dozing, grading, and excavation), equipment transport, and science operations. In an effort to support these additional tasks a team at the Kennedy Space Center has produced a universal attachment interface for LER known as the Quick Attach. The Quick Attach is a compact system that has been retro-fitted to the rear of the LER giving it the ability to dock and undock on the fly with various implements. The Quick Attach utilizes a two stage docking approach; the first is a mechanical mate which aligns and latches a passive set of hooks on an implement with an actuated cam surface on LER. The mechanical stage is tolerant to misalignment between the implement and the LER during docking and once the implement is captured a preload is applied to ensure a positive lock. The second stage is an umbilical connection which consists of a dust resistant enclosure housing a compliant mechanism that is optionally actuated to mate electrical and fluid connections for suitable implements. The Quick Attach system was designed with the largest foreseen input loads considered including excavation operations and large mass utility attachments. The Quick Attach system was demonstrated at the Desert Research And Technology Studies (D-RA TS) field test in Flagstaff, AZ along with the lightweight dozer blade LANCE. The LANCE blade is the first implement to utilize the Quick Attach interface and demonstrated the tolerance, speed, and strength of the system in a lunar analog environment.

  13. JACIE Radiometric Assessment of QuickBird Multispectral Imagery

    NASA Technical Reports Server (NTRS)

    Pagnutti, Mary; Carver, David; Holekamp, Kara; Knowlton, Kelly; Ryan, Robert; Zanoni, Vicki; Thome, Kurtis; Aaron, David

    2004-01-01

    Radiometric calibration of commercial imaging satellite products is required to ensure that science and application communities can place confidence in the imagery they use and can fully understand its properties. Inaccurate radiometric calibrations can lead to erroneous decisions and invalid conclusions and can limit intercomparisons with other systems. To address this calibration need, the NASA Stennis Space Center (SSC) Earth Science Applications (ESA) directorate,through the Joint Agency for Commercial Imagery Evaluation (JACIE) framework, established a commercial imaging satellite radiometric calibration team consisting of two groups: 1) NASA SSC ESA, supported by South Dakota State University, and 2) the University of Arizona Remote Sensing Group. The two groups determined the absolute radiometric calibration coefficients of the Digital Globe 4-band, 2.4-m QuickBird multispectral product covering the visible through near-infrared spectral region. For a 2-year period beginning in 2002, both groups employed some variant of a reflectance-based vicarious calibration approach, which required ground-based measurements coincident with QuickBird image acquisitions and radiative transfer calculations. The groups chose several study sites throughout the United States that covered nearly the entire dynamic range of the QuickBird sensor. QuickBird at-sensor radiance values were compared with those estimated by the two independent groups to determine the QuickBird sensor's radiometric accuracy. Approximately 20 at-sensor radiance estimates were vicariously determined each year. The estimates were combined to provide a high-precision radiometric gain calibration coefficient. The results of this evaluation provide the user community with an independent assessment of the QuickBird sensor's absolute calibration and stability over the 2-year period. While the techniques and method described reflect those developed at the NASA SSC, the results of both JACIE team groups are included in this paper.

  14. Mission design applications of QUICK. [software for interactive trajectory calculation

    NASA Technical Reports Server (NTRS)

    Skinner, David L.; Bass, Laura E.; Byrnes, Dennis V.; Cheng, Jeannie T.; Fordyce, Jess E.; Knocke, Philip C.; Lyons, Daniel T.; Pojman, Joan L.; Stetson, Douglas S.; Wolf, Aron A.

    1990-01-01

    An overview of an interactive software environment for space mission design termed QUICK is presented. This stand-alone program provides a programmable FORTRAN-like calculator interface to a wide range of both built-in and user defined functions. QUICK has evolved into a general-purpose software environment that can be intrinsically and dynamically customized for a wide range of mission design applications. Specific applications are described for some space programs, e.g., the earth-Venus-Mars mission, the Cassini mission to Saturn, the Mars Observer, the Galileo Project, and the Magellan Spacecraft.

  15. Combining Quick-Turnaround and Batch Workloads at Scale

    NASA Technical Reports Server (NTRS)

    Matthews, Gregory A.

    2012-01-01

    NAS uses PBS Professional to schedule and manage the workload on Pleiades, an 11,000+ node 1B cluster. At this scale the user experience for quick-turnaround jobs can degrade, which led NAS initially to set up two separate PBS servers, each dedicated to a particular workload. Recently we have employed PBS hooks and scheduler modifications to merge these workloads together under one PBS server, delivering sub-1-minute start times for the quick-turnaround workload, and enabling dynamic management of the resources set aside for that workload.

  16. An Approach to Generating Program Code in Quickly Evolving Environments

    NASA Astrophysics Data System (ADS)

    Ablonskis, Linas

    In model-driven engineering (MDE) program code generators are used to generate program code from abstract program models, thus bringing the final code closer to program specification and saving time that would be spent in coding. Current approach to program code generation from abstract program models does not work well in quickly evolving environments due to the large amount of work that is required to fully prepare and maintain program code generator. This chapter presents analysis of current approach to program code generation and presents an alternative approach tailored for generating program code in quickly evolving environments by using self-configuring program code generator.

  17. 75 Quick and Easy Solutions to Common Classroom Disruptions

    ERIC Educational Resources Information Center

    Harris, Bryan; Goldberg, Cassandra

    2012-01-01

    This very well organized book is packed with practical solutions to the most common classroom problems--side talk, rude behavior, calling out, students losing focus, and students refusing even to try. Every solution is classroom-tested, highly effective, and quick and easy to implement! Use this book to help make your classroom a happier, more

  18. Quick and Easy Rate Equations for Multistep Reactions

    ERIC Educational Resources Information Center

    Savage, Phillip E.

    2008-01-01

    Students rarely see closed-form analytical rate equations derived from underlying chemical mechanisms that contain more than a few steps unless restrictive simplifying assumptions (e.g., existence of a rate-determining step) are made. Yet, work published decades ago allows closed-form analytical rate equations to be written quickly and easily for…

  19. Is there a quick way to view MISR images?

    Atmospheric Science Data Center

    2014-12-08

    ... allows quick viewing of images from the MISR instrument. The color images are produced from the L1B2 Ellipsoid product for each camera ... The MISR red, green and blue bands are used to create the color image, which are intentionally clipped and gamma-stretched to make cloud, ...

  20. Quick Start Training Program. PY95 Final Detailed Report.

    ERIC Educational Resources Information Center

    El Paso Community Coll., TX.

    The Quick Start Training Program is a transitional program that was developed to help the homeless population of El Paso, Texas, become self-sufficient through short-term vocational skills training. The program's occupational training component was designed to meet local training needs and was supplemented with activities to give participants…

  1. A Better Quick-Connect Passive Capture Joint

    NASA Technical Reports Server (NTRS)

    Nabors, Sammy A.

    2015-01-01

    NASA's Marshall Space Flight Center has developed a joint that employs a unique spring-loaded mechanism that automatically secures a ball hitch upon insertion into a coupler. This eliminates the need for the locking lever found in most conventional ball joints. Connections made using MSFC's quick-connect joint are easier, safer, and more reliable than those made using conventional ball joints.

  2. Water/Ice Heat Sink With Quick-Connect Couplings

    NASA Technical Reports Server (NTRS)

    Lomax, Curtis; Webbon, Bruce

    1996-01-01

    Report presents additional detailed information on apparatus described in "Direct-Interface, Fusible Heat Sink" (ARC-11920). Describes entire apparatus, with special emphasis on features of quick-disconnect couplings governing flow of water under various operating conditions and plumbing configuration.

  3. Modular Building Supplement: A Quick, Quality Solution for Schools.

    ERIC Educational Resources Information Center

    Goodmiller, Brian D.; Schendell, Derek G.

    2003-01-01

    This supplement presents three articles on modular construction that look at: "Fast Track Expansion for a New Jersey School" (involving a modular addition); "Precast Construction Helps Schools Meet Attendance Boom" (precast concrete components are quick, durable, and flexible); and "Airing HVAC Concerns" (poor indoor air quality in prefabricated

  4. Quick-Connect Current Limiter Scores High in University Testing.

    ERIC Educational Resources Information Center

    Energy Management Technology, 1985

    1985-01-01

    To maintain good light quality while attempting to reduce energy costs, the University of Illinois (Chicago) investigated a variety of light-related cutbacks. An inexpensive, quickly installed current-limiting device (NO-WATT manufactured by Remtec Systems) on 1000 fixtures resulted in energy savings of $18,000 annually. (DH)

  5. Probe And Drogue For Quick Attachment And Detachment

    NASA Technical Reports Server (NTRS)

    Thomson, Mark; Gralewski, Mark; Young, Grant

    1992-01-01

    Prototype probe-and-drogue attachment mechanism connects and disconnects parts quickly and locks them together positively. Probe intended to be capturing stud, and drogue is mating recess in panel to be captured, as described in "Easy Attachment Of Panels To A Truss" (LAR-14478). Accommodates large alignment error when parts brought together.

  6. Quick and Easy Rate Equations for Multistep Reactions

    ERIC Educational Resources Information Center

    Savage, Phillip E.

    2008-01-01

    Students rarely see closed-form analytical rate equations derived from underlying chemical mechanisms that contain more than a few steps unless restrictive simplifying assumptions (e.g., existence of a rate-determining step) are made. Yet, work published decades ago allows closed-form analytical rate equations to be written quickly and easily for

  7. Quick Guide to ERIC Tools for the Graduate Student.

    ERIC Educational Resources Information Center

    ERIC Clearinghouse on Higher Education, Washington, DC.

    This collection serves as a quick guide to Educational Resources Information Center (ERIC) tools graduate students may find useful. The guide contains example screens and information on each of these: (1) ACCESS ERIC Home Page, the hub of the ERIC system, which links to all Clearinghouses and support components; (2) the ERIC system slide show home

  8. A Quick-Test for Biochar Effects on Seed Germination

    EPA Science Inventory

    Biochar is being globally evaluated as a soil amendment to improve soil characteristics (e.g. soil water holding, nutrient exchange, microbiology, pesticides and chemical availability) to increase crop yields. Unfortunately, there are no quick tests to determine what biochar type...

  9. Part B Maintenance of Effort (MOE) Quick Reference Document

    ERIC Educational Resources Information Center

    Ball, Wayne; Beridon, Virginia; Hamre, Kent; Morse, Amanda

    2012-01-01

    This Quick Reference Document has been prepared by the Regional Resource Center Program Fiscal Priority Team to aid RRCP State liaisons and other Technical Assistance (TA) providers in understanding the general context of State questions surrounding Maintenance of State Financial Support (MFS) and Local Educational Agency (LEA) Maintenance of…

  10. Covert Anti-Compensatory Quick Eye Movements during Head Impulses

    PubMed Central

    Todd, Nicholas S.; Jahn, Klaus; Schneider, Erich; Lehnen, Nadine

    2014-01-01

    Background Catch-up saccades during passive head movements, which compensate for a deficient vestibulo-ocular reflex (VOR), are a well-known phenomenon. These quick eye movements are directed toward the target in the opposite direction of the head movement. Recently, quick eye movements in the direction of the head movement (covert anti-compensatory quick eye movements, CAQEM) were observed in older individuals. Here, we characterize these quick eye movements, their pathophysiology, and clinical relevance during head impulse testing (HIT). Methods Video head impulse test data from 266 patients of a tertiary vertigo center were retrospectively analyzed. Forty-three of these patients had been diagnosed with vestibular migraine, and 35 with Menière’s disease. Results CAQEM occurred in 38% of the patients. The mean CAQEM occurrence rate (per HIT trial) was 11±10% (mean±SD). Latency was 83±30 ms. CAQEM followed the saccade main sequence characteristics and were compensated by catch-up saccades in the opposite direction. Compensatory saccades did not lead to more false pathological clinical head impulse test assessments (specificity with CAQEM: 87%, and without: 85%). CAQEM on one side were associated with a lower VOR gain on the contralateral side (p<0.004) and helped distinguish Menière’s disease from vestibular migraine (p = 0.01). Conclusion CAQEM are a common phenomenon, most likely caused by a saccadic/quick phase mechanism due to gain asymmetries. They could help differentiate two of the most common causes of recurrent vertigo: vestibular migraine and Menière’s disease. PMID:24732783

  11. QUICK - AN INTERACTIVE SOFTWARE ENVIRONMENT FOR ENGINEERING DESIGN

    NASA Technical Reports Server (NTRS)

    Schlaifer, R. S.

    1994-01-01

    QUICK provides the computer user with the facilities of a sophisticated desk calculator which can perform scalar, vector and matrix arithmetic, propagate conic orbits, determine planetary and satellite coordinates and perform other related astrodynamic calculations within a Fortran-like environment. QUICK is an interpreter, therefore eliminating the need to use a compiler or a linker to run QUICK code. QUICK capabilities include options for automated printing of results, the ability to submit operating system commands on some systems, and access to a plotting package (MASL)and a text editor without leaving QUICK. Mathematical and programming features of QUICK include the ability to handle arbitrary algebraic expressions, the capability to define user functions in terms of other functions, built-in constants such as pi, direct access to useful COMMON areas, matrix capabilities, extensive use of double precision calculations, and the ability to automatically load user functions from a standard library. The MASL (The Multi-mission Analysis Software Library) plotting package, included in the QUICK package, is a set of FORTRAN 77 compatible subroutines designed to facilitate the plotting of engineering data by allowing programmers to write plotting device independent applications. Its universality lies in the number of plotting devices it puts at the user's disposal. The MASL package of routines has proved very useful and easy to work with, yielding good plots for most new users on the first or second try. The functions provided include routines for creating histograms, "wire mesh" surface plots and contour plots as well as normal graphs with a large variety of axis types. The library has routines for plotting on cartesian, polar, log, mercator, cyclic, calendar, and stereographic axes, and for performing automatic or explicit scaling. The lengths of the axes of a plot are completely under the control of the program using the library. Programs written to use the MASL subroutines can be made to output to the Calcomp 1055 plotter, the Hewlett-Packard 2648 graphics terminal, the HP 7221, 7475 and 7550 pen plotters, the Tektronix 40xx and 41xx series graphics terminals, the DEC VT125/VT240 graphics terminals, the QMS 800 laser printer, the Sun Microsystems monochrome display, the Ridge Computers monochrome display, the IBM/PC color display, or a "dumb" terminal or printer. Programs using this library can be written so that they always use the same type of plotter or they can allow the choice of plotter type to be deferred until after program execution. QUICK is written in RATFOR for use on Sun4 series computers running SunOS. No source code is provided. The standard distribution medium for this program is a .25 inch streaming magnetic tape cartridge in UNIX tar format. An electronic copy of the documentation in ASCII format is included on the distribution medium. QUICK was developed in 1991 and is a copyrighted work with all copyright vested in NASA.

  12. Using CHAINS, a QuickBASIC 4.5 Program, to Teach Single-Subject Experimentation with Humans

    ERIC Educational Resources Information Center

    Dermer, Marshall Lev

    2004-01-01

    Students enrolled in a single-subject design course studied the repeated acquisition of response sequences by using CHAINS, a QuickBASIC 4.5 program, which runs in DOS or Windows. For about 2 months, students examined the learning of such sequences as a function of various treatments. Each week students graphed their data, discussed their

  13. Modular workover rig designed for quick moves between platforms

    SciTech Connect

    1995-08-07

    A new workover rig has a modular design for quick rig up and rig down and easy transport between offshore platforms using field supply boats and platform cranes. Pool Energy Services Co.`s new electric-powered platform workover rig recently left Houston bound for Australia`s Bass Strait, where it began offshore operations for Esso Australia Ltd. in July. This SCR (silicon controlled rectifier) rig is rated at 1,000 hp. A sister rig began operations offshore Malaysia for Esso Production Malaysia Inc. in late 1994. The offshore platforms in Bass Strait are within close proximity of each other. The rig must be able to make quick moves from one location to another. The 427-ton rig has a modular configuration, allowing it to be rigged down, transported, and reassembled in this field in about 5--7 days, depending on the weather and supply boat schedule. The paper describes the design and operation of the workover rig.

  14. Quick application/release nut with engagement indicator

    NASA Technical Reports Server (NTRS)

    Wright, Jay M. (inventor)

    1992-01-01

    A composite nut is shown which permits a fastener to be inserted or removed from either side with an indicator of fastener engagement. The nut has a plurality of segments, preferably at least three segments, which are internally threaded, spring loaded apart by an internal spring, and has detents on opposite sides which force the nut segments into operative engagements with a threaded member when pushed in and release the segments for quick insertion or removal of the nut when moved out. When the nut is installed, end pressure on one of the detents presses the nut segments into operative engagement with a threaded member where continued rotation locks the structure together with the detents depressed to indicate positive locking engagement of the nut. On removal, counterclockwise rotation of the nut relieves the endwise pressure on the detents, permitting internal springs to force the detents outward and allowing the nut segments to move outward and separate to permit quick removal of the fastener.

  15. Unit hydrographs to model quick and slow runoff components of streamflow

    NASA Astrophysics Data System (ADS)

    Yue, S.; Hashino, M.

    2000-01-01

    This article derives the unit pulse response functions (unit hydrographs (UHs)) for the quick and slow runoff components of streamflow (quick runoff: direct or surface runoff; slow runoff: the sum of rapid subsurface, delayed subsurface, and groundwater runoffs) using the model of three serial tanks with a parallel tank. The interdependence between the tanks is described by exponential functions of the model's parameters. The parameters are identified using the Simplex method. In comparison to traditional unit hydrograph (TUH) methods, the proposed UH method has the following advantages: (1) it can be used to separate quick and slow streamflow components; (2) it is appropriate for forecasting streamflow hydrographs produced by various storms such as single-peak storms and multi-peak storms without resorting to changing model's parameters; and (3) it does not require either an a priori calculation of rainfall excess or baseflow separation for deriving the UH. The TUH models such as the Sherman model and the Nash model with three cascade reservoirs are particular cases of the proposed model. The applicability and validity of the proposed model are verified using observed rainfall-streamflow data from an actual basin. The resulting computed streamflows show a good correspondence with observed ones.

  16. Quick look Atlantic Ocean rain maps for gale

    NASA Technical Reports Server (NTRS)

    Martin, David W.; Auvine, Brian

    1987-01-01

    A set of quick look maps of Atlantic Ocean rainfall were made. The maps are based entirely on information extracted from geostationary satellite images. The maps and the process by which they were made are briefly described. The major shortcomings of such a project are pointed out. For convenience the maps are presented in rectangular format. Each map covers one day. Rainfall is contoured in units of millimeters. Rainfall was estimated by the Arkin technique.

  17. Fastener provides for bolt misalignment and quick release of flange

    NASA Technical Reports Server (NTRS)

    England, C.

    1966-01-01

    Fastener enables two large flanges to be bolted together without close alignment between the bolt and bolt-hole diameters, and provides for a quick release of one of the flanges under emergency conditions. It contains a nut that is retained by a square head in a recess in one side of the removable flange and by a collar and snap ring on the other side of the flange.

  18. Straight talk with...Jonathan Quick. Interview by Roxanne Khamsi.

    PubMed

    Quick, Jonathan

    2013-09-01

    In April 2012, an e-mail announcing the impending closure of the Global Health Council following the cancellation of its annual conference sent shockwaves through its community of 325 organizational members spanning 39 countries. For 40 years, the Alexandria, Virginia-based nonprofit had acted as an umbrella organization for stakeholders that include some of the world's most prominent medical institutions and drug companies. As the June 2012 closure of the GHC approached, several members stepped in to rescue the operation, including Jonathan Quick, a family physician and CEO of Management Sciences for Health, a Cambridge, Massachusetts-based outfit that works to strengthen health systems and infrastructure around the globe. In January, a new GHC board was elected, with Quick at the helm. In the ensuing months the board members have built the organization back up-albeit as a leaner and more targeted operation. This past summer, they launched a revamped website (www.globalhealth.org) and are looking ahead to convening GHC members at the UN General Assembly on 18 September in New York, where the discussion of Millennium Development Goals will take place. As Nature Medicine went to press, the relaunched GHC was in the midst of recruiting for its first staff position, executive director. Roxanne Khamsi spoke with Quick about the health of the organization. PMID:24013739

  19. Quick-disconnect harness system for helmet-mounted displays

    NASA Astrophysics Data System (ADS)

    Bapu, P. T.; Aulds, M. J.; Fuchs, Steven P.; McCormick, David M.

    1992-10-01

    We have designed a pilot's harness-mounted, high voltage quick-disconnect connectors with 62 pins, to transmit voltages up to 13.5 kV and video signals with 70 MHz bandwidth, for a binocular helmet-mounted display system. It connects and disconnects with power off, and disconnects 'hot' without pilot intervention and without producing external sparks or exposing hot embers to the explosive cockpit environment. We have implemented a procedure in which the high voltage pins disconnect inside a hermetically-sealed unit before the physical separation of the connector. The 'hot' separation triggers a crowbar circuit in the high voltage power supplies for additional protection. Conductor locations and shields are designed to reduce capacitance in the circuit and avoid crosstalk among adjacent circuits. The quick- disconnect connector and wiring harness are human-engineered to ensure pilot safety and mobility. The connector backshell is equipped with two hybrid video amplifiers to improve the clarity of the video signals. Shielded wires and coaxial cables are molded as a multi-layered ribbon for maximum flexibility between the pilot's harness and helmet. Stiff cabling is provided between the quick-disconnect connector and the aircraft console to control behavior during seat ejection. The components of the system have been successfully tested for safety, performance, ergonomic considerations, and reliability.

  20. Quick, Quick, Slow

    ERIC Educational Resources Information Center

    Johnson, Will

    2008-01-01

    As someone more at home in jeans and pumps it was a bit of a shock. The author could not quite get used to the sight of his feet in his father-in-law's black and pointy dancing shoes. Jennie, more often seen in trainers or steel-capped boots, had on a pair of strappy heels she'd borrowed from her mum. They felt like kids dressing up in their

  1. Quick, Quick, Slow

    ERIC Educational Resources Information Center

    Johnson, Will

    2008-01-01

    As someone more at home in jeans and pumps it was a bit of a shock. The author could not quite get used to the sight of his feet in his father-in-law's black and pointy dancing shoes. Jennie, more often seen in trainers or steel-capped boots, had on a pair of strappy heels she'd borrowed from her mum. They felt like kids dressing up in their…

  2. Quick setting water-compatible furfuryl alcohol polymer concretes

    SciTech Connect

    Sugama, Toshifumi; Kukacka, Lawrence E.; Horn, William H.

    1982-11-30

    A novel quick setting polymer concrete composite comprising a furfuryl alcohol monomer, an aggregate containing a maximum of 8% by weight water, and about 1-10% trichlorotoluene initiator and about 20-80% powdered metal salt promoter, such as zinc chloride, based on the weight of said monomer, to initiate and promote polymerization of said monomer in the presence of said aggregate, within 1 hour after mixing at a temperature of -20.degree. C. to 40.degree. C., to produce a polymer concrete having a 1 hour compressive strength greater than 2000 psi.

  3. Quick setting water-compatible furfuryl alcohol polymer concretes

    SciTech Connect

    Horn, W.H.; Kukacka, L.E.; Sugama, T.

    1982-11-30

    A novel quick setting polymer concrete composite comprising a furfuryl alcohol monomer, an aggregate containing a maximum of 8% by weight water, and about 1-10% trichlorotoluene initiator and about 20-80% powdered metal salt promoter, such as zinc chloride, based on the weight of said monomer, to initiate and promote polymerization of said monomer in the presence of said aggregate, within 1 hour after mixing at a temperature of -20/sup 0/ C to 40/sup 0/ C, to produce a polymer concrete having a 1 hour compressive strength greater than 2000 psi.

  4. International Space Station Increment-2 Quick Look Report

    NASA Technical Reports Server (NTRS)

    Jules, Kenol; Hrovat, Kenneth; Kelly, Eric

    2001-01-01

    The objective of this quick look report is to disseminate the International Space Station (ISS) Increment-2 reduced gravity environment preliminary analysis in a timely manner to the microgravity scientific community. This report is a quick look at the processed acceleration data collected by the Microgravity Acceleration Measurement System (MAMS) during the period of May 3 to June 8, 2001. The report is by no means an exhaustive examination of all the relevant activities, which occurred during the time span mentioned above for two reasons. First, the time span being considered in this report is rather short since the MAMS was not active throughout the time span being considered to allow a detailed characterization. Second, as the name of the report implied, it is a quick look at the acceleration data. Consequently, a more comprehensive report, the ISS Increment-2 report, will be published following the conclusion of the Increment-2 tour of duty. NASA sponsors the MAMS and the Space Acceleration Microgravity System (SAMS) to support microgravity science experiments, which require microgravity acceleration measurements. On April 19, 2001, both the MAMS and the SAMS units were launched on STS-100 from the Kennedy Space Center for installation on the ISS. The MAMS unit was flown to the station in support of science experiments requiring quasisteady acceleration data measurements, while the SAMS unit was flown to support experiments requiring vibratory acceleration data measurement. Both acceleration systems are also used in support of the vehicle microgravity requirements verification. The ISS reduced gravity environment analysis presented in this report uses mostly the MAMS acceleration data measurements (the Increment-2 report will cover both systems). The MAMS has two sensors. The MAMS Orbital Acceleration Research Experiment Sensor Subsystem, which is a low frequency range sensor (up to 1 Hz), is used to characterize the quasi-steady environment for payloads and vehicle. The MAMS High Resolution Acceleration Package is used to characterize the ISS vibratory environment up to 100 Hz. This quick look report presents some selected quasi-steady and vibratory activities recorded by the MAMS during the ongoing ISS Increment-2 tour of duty.

  5. Quick focusing of imaging optics using micromachined adaptive mirrors

    NASA Astrophysics Data System (ADS)

    Vdovin, Gleb

    1997-08-01

    Inexpensive micromachined varifocal mirrors, providing a very wide range of focal distance control are described. The focal distance of a mirror with a clear aperture of 1 cm can be controlled in the range ? to +0.25 m (four diopters) in a frequency band up to 75 Hz by applying control voltages in the range of 0 to 200 V. Applications for quick focus control in a CCD camera and for direct correction of the accommodation depth of a human eye are reported.

  6. Improved Quick Disconnect (QD) Interface Through Fail Safe Parts Identification

    NASA Technical Reports Server (NTRS)

    Blanch-Payne, Evelyn

    2001-01-01

    An extensive review of existing Quick Disconnects (QDs) mating and demating operations was performed to determine which shuttle part interface identifications and procedures contribute to human factor errors. The research methods used consisted of interviews with engineers and technicians, examination of incident reports, critiques of video and audio tapes of QD operations, and attendance of a Hyper QD operational course. The data strongly suggests that there are inherit human factor errors involved in QD operations. To promote fail-safe operations, QD interface problem areas and recommendations were outlined and reviewed. It is suggested that dialogue, investigations and recommendations continue.

  7. Pharmaceutical Spending and German Reunification: Parity Comes Quickly to Berlin

    PubMed Central

    Katz, Eric M.

    1994-01-01

    As the Berlin Wall fell and the population of the Federal Republic of Germany (FRG, West Germany) swelled by 25 percent with the addition of the former German Democratic Republic (GDR, East Germany), the health care system struggled to keep pace. This article examines drug outlays by the statutory sickness funds during the first 2 years of unified operations. It shows that providing equivalent coverage quickly led to equal rates of pharmaceutical consumption nationwide, while in Berlin the former East outdistanced the West by a considerable margin. PMID:10137795

  8. Evaluation of NeQuick 2 derived vertical TEC at three northern mid-latitude locations

    NASA Astrophysics Data System (ADS)

    Alazo Cuartas, Katy; Radicella, Sandro M.; Nava, Bruno; Lazo Olazabal, Bienvenido; Migoya Orue, Yenca O.

    2013-04-01

    NeQuick 2 is the latest version of the three-dimensional and time dependent ionospheric electron density model developed at the T/ICT4D (former ARPL) of the Abdus Salam International Centre for Theoretical Physics (ICTP) - Trieste, Italy and at the Institute for Geophysics, Astrophysics and Meteorology of the University of Graz, Austria. The purpose of this work is to identify possible limitations of the model. Therefore, the ability of NeQuick 2 in reproducing the vertical Total Electron Content (vTEC) derived from GPS observations using different input sources has been evaluated. The daily solar flux in 10.7 cm, the monthly smoothed solar flux and the hourly daily ionosonde derived F2 peak parameters, foF2 and hmF2, have been therefore used as model drivers to compute the vTEC at the relevant locations. Peak parameter values from three ionosonde stations (Ebre, El Arenosillo and Ramey) and GPS-derived vTEC data obtained from the corresponding co-located receivers (ebre, sfer, pur3) have been processed for the present work. The available data for the years 2000 and 2004, corresponding to high and moderate solar activity periods, have been considered to be able to estimate the model performance in a wide range of geophysical conditions. For each location, the data analysis has been based on statistical comparisons between experimental and retrieved vTEC. The results indicate that the differences between NeQuick 2-computed and GPS-derived vTEC exhibit well defined diurnal and seasonal patterns that depend on the location and period considered. On average, NeQuick 2 underestimates the vTEC during nighttime, mainly in the winter months and slightly during the summer months. In the daytime hours on the European locations, the model generally overestimates the vTEC in winter months, having an opposite behavior in the summer months. At PRJ18/pur3 location the NeQuick 2 response is more complex. During high solar activity, the daily difference between modeled and GPS derived TEC mean behavior are similar to the observed on the European locations. During the mid-to-low solar activity period the model generally overestimates vTEC for all seasons. In addition, the post-sunset enhancements of the TEC values are usually overestimated by the model. For all locations and solar activity conditions evaluated, the local sunrise hours and the equinoctial months are usually the best reproduced periods.

  9. QDPHOT : An IRAF Task for Quick &Dirty Photometry

    NASA Astrophysics Data System (ADS)

    Mighell, K. J.

    I presented a new fast CCD stellar photometry task for IRAF called QDPHOT (Quick & Dirty PHOTometry) which is designed to quickly produce good CCD stellar photometry for applications where speed matters and every second is important. QDPHOT currently detects and photometers stars present in two aligned CCD images with stellar full-width-at-half-maximum values of 2-3 pixels. QDPHOT typically takes just a few seconds to analyze a single CCD of two aligned WFPC2 observations in two filters [e.g. 2-3 seconds on a 200MHz Sun Ultra1 workstation]. QDPHOT is suitable for producing on-the-fly instrumental color-magnitude diagrams at the telescope console in the few seconds between CCD readouts. QDPHOT is also an excellent data mining tool for finding high-quality stellar observations amongst GB of archived data. As an example of using QDPHOT as a data mining tool, I presented many instrumental color-magnitude diagrams of globular clusters in the Milky Way and nearby galaxies which are based on archival WFPC2 observations obtained from the Hubble Space Telescope data archive. Typical reduction times for these WFPC2 observations was about 8-12 seconds per cluster CMD (all 4 WFPC2 CCDs). QDPHOT is currently packaged as part of the IRAF QDTOOLS package which is available at the following website: http://www.noao.edu/staff/mighell/qdtools/

  10. Evaluation of quick tests for phosphorus determination in dairy manures.

    PubMed

    Lugo-Ospina, A; Dao, Thanh H; Van Kessel, J A; Reeves, J B

    2005-05-01

    Nutrients in animal manure are valuable inputs in agronomic crop production. Rapid and timely information about manure nutrient content are needed to minimize the risks of phosphorus (P) over-application and losses of dissolved P (DP) in runoff from fields treated with manure. We evaluated the suitability of a commercial hand-held reflectometer, a hydrometer, and an electrical conductivity (EC) meter for determining DP and total P (TP) in dairy manures. Bulk samples (n = 107) collected from farms across CT, MD, NY, PA, and VA were highly variable in total solids (TS) concentration, ranging from 11 to 213gL(-1), in suspensions' pH (6.3-9.2), and EC (6.2-53.3 dS m(-1)). Manure DP concentrations measured using the RQFlex reflectometer (RQFlex-DP(s)) were related to molybdate-reactive P (MRP(s)) concentrations as follows: RQFlex-DP(s) = 0.471 x MRP(s) + 1102 (r2 = 0.29). Inclusion of pH and squared-pH terms improved the prediction of manure DP from RQFlex results (r2 = 0.66). Excluding five outlier samples that had pH < or = 6.9 the coefficient of determination (r2) for the MRP(s) and RQFlex-DP(s) relationship was 0.83 for 95% of the samples. Manure TS were related to hydrometer specific gravity readings (r2 = 0.53) that were in turn related to TP (r2 = 0.34), but not to either RQFlex-DP or MRP. Relationships between suspensions' EC and DP or TP were non-significant. Therefore, the RQFlex method is the only viable option for on-site quick estimates of DP that can be made more robust when complemented with TS and pH measurements. The DP quick test can provide near real-time information on soluble manure nutrient content across a wide range of handling and storage conditions on dairy farms and quick estimates of potential soluble P losses in runoff following land applications of manure. PMID:15701402

  11. Adaptive Selection of Surviving Symbol Replica Candidates for Quasi-Maximum Likelihood Detection Using M-Algorithm with QR-Decomposition for OFDM MIMO Multiplexing

    NASA Astrophysics Data System (ADS)

    Higuchi, Kenichi; Kawai, Hiroyuki; Taoka, Hidekazu; Maeda, Noriyuki; Sawahashi, Mamoru

    This paper proposes an adaptive selection algorithm for the surviving symbol replica candidates (ASESS) based on the maximum reliability in maximum likelihood detection with QR decomposition and the M-algorithm (QRM-MLD) for Orthogonal Frequency Division Multiplexing (OFDM) multiple-input multiple-output (MIMO) multiplexing. In the proposed algorithm, symbol replica candidates newly-added at each stage are ranked for each surviving symbol replica from the previous stage using multiple quadrant detection. Then, branch metrics are calculated only for the minimum number of symbol replica candidates with a high level of reliability using an iterative loop based on symbol ranking results. Computer simulation results show that the computational complexity of the QRM-MLD employing the proposed ASESS algorithm is reduced to approximately 1/4 and 1/1200 compared to that of the original QRM-MLD and that of the conventional MLD with squared Euclidian distance calculations for all symbol replica candidates, respectively, assuming the identical achievable average packet error rate (PER) performance in 4-by-4 MIMO multiplexing with 16QAM data modulation. The results also show that 1-Gbps throughput is achieved at the average received signal energy per bit-to-noise power spectrum density ratio (Eb/N0) per receiver antenna of approximately 9dB using the ASESS algorithm in QRM-MLD associated with 16QAM modulation and Turbo coding with the coding rate of 8/9 assuming a 100-MHz bandwidth for a 12-path Rayleigh fading channel (root mean square (r.m.s.) delay spread of 0.26s and maximum Doppler frequency of 20Hz).

  12. Autophagic Vacuolation Induced by Excess ROS Generation in HABP1/p32/gC1qR Overexpressing Fibroblasts and Its Reversal by Polymeric Hyaluronan

    PubMed Central

    Saha, Paramita; Chowdhury, Anindya Roy; Dutta, Shubhra; Chatterjee, Soumya; Ghosh, Ilora; Datta, Kasturi

    2013-01-01

    The ubiquitous hyaladherin, hyaluronan-binding protein 1 (HABP1/p32/gC1qR) upon stable overexpression in normal fibroblasts (F-HABP07) has been reported to induce mitochondrial dysfunction, growth retardation and apoptosis after 72 h of growth. HABP1 has been observed to accumulate in the mitochondria resulting in generation of excess Reactive Oxygen Species (ROS), mitochondrial Ca++ efflux and drop in mitochondrial membrane potential. In the present study, autophagic vacuolation was detected with monodansylcadaverin (MDC) staining from 36 h to 60 h of culture period along with elevated level of ROS in F-HABP07 cells. Increased expression of autophagic markers like MAP-LC3-II, Beclin 1 and autophagic modulator, DRAM confirmed the occurrence of the phenomenon. Reduced vacuole formation was observed upon treatment with 3-MA, a known PI3 kinase inhibitor, only at 32 h and was ineffective if treated later, as high ROS level was already attained. Treatment of F111 and F-HABP07 cells with bafilomycin A1 further indicated an increase in autophagosome formation along with autophagic degradation in HABP1 overexpressed fibroblasts. Comparison between normal fibroblast (F111) and F-HABP07 cells indicate reduced level of polymeric HA, its depolymerization and perturbed HA-HABP1 interaction in F-HABP07. Interestingly, supplementation of polymeric HA, an endogenous ROS scavenger, in the culture medium prompted reduction in number of vacuoles in F-HABP07 along with drop in ROS level, implying that excess ROS generation triggers initiation of autophagic vacuole formation prior to apoptosis due to overexpression of HABP1. Thus, the phenomenon of autophagy takes place prior to apoptosis induction in the HABP1 overexpressing cell line, F-HABP07. PMID:24205125

  13. Increased Hyaluronan Levels in HABP1/p32/gC1qR Overexpressing HepG2 Cells Inhibit Autophagic Vacuolation Regulating Tumor Potency

    PubMed Central

    Saha, Paramita; Ghosh, Ilora; Datta, Kasturi

    2014-01-01

    Tumor growth and development is influenced by its microenvironment. A major extracellular matrix molecule involved in cancer progression is hyaluronan (HA). Hyaluronan and expression of a number of hyaladherin family proteins are dramatically increased in many cancer malignancies. One such hyaladherin, hyaluronan-binding protein 1 (HABP1/p32/gC1qR) has been considered to be a biomarker for tumor progression. Interestingly, overexpression of HABP1 in fibroblast has been shown to increase autophagy via generation of excess reactive oxygen species (ROS) and depletion of HA leading to apoptosis. Cancerous cells are often found to exhibit decreased rate of proteolysis/autophagy in comparison to their normal counterparts. To determine if HABP1 levels alter tumorigenicity of cancerous cells, HepR21, the stable transfectant overexpressing HABP1 in HepG2 cell line was derived. HepR21 has been shown to have increased proliferation rate than HepG2, intracellular HA cable formation and enhanced tumor potency without any significant alteration of intracellular ROS. In this paper we have observed that HepR21 cells containing higher endogenous HA levels, have downregulated expression of the autophagic marker, MAP-LC3, consistent with unaltered levels of endogenous ROS. In fact, HepR21 cells seem to have significant resistance to exogenous ROS stimuli and glutathione depletion. HepR21 cells were also found to be more resilient to nutrient starvation in comparison to its parent cell line. Decline in intracellular HA levels and HA cables in HepR21 cells upon treatment with HAS inhibitor (4-MU), induced a surge in ROS levels leading to increased expression of MAP-LC3 and tumor suppressors Beclin 1 and PTEN. This suggests the importance of HABP1 induced HA cable formation in enhancing tumor potency by maintaining the oxidant levels and subsequent autophagic vacuolation. PMID:25061661

  14. High flow, low mobile weight quick disconnect system

    NASA Technical Reports Server (NTRS)

    Smith, Ronn G. (Inventor); Nagy, Jr., Zoltan Frank (Inventor); Moszczienski, Joseph Roch (Inventor)

    2010-01-01

    A fluid coupling device and coupling system that may start and stop the flow of a fluid is disclosed. In some embodiments, first and second couplings are provided having an actuator coupled with each of the couplings. The couplings and actuators may be detachable to provide quick disconnect features and, in some embodiments, provide unitary actuation for the actuators of the coupling device to facilitate connection in mobile applications. Actuation may occur as the two couplings and actuators are engaged and disengaged and may occur by rotational actuation of the actuators. Rotational actuation can be provided to ensure flow through the coupling device, which in some embodiments may further provide an offset venturi feature. Upon disengagement, a compression element such as a compression spring can be provided to return the actuators to a closed position. Some embodiments further provide a seal external to the actuators and provided at incipient engagement of the couplings.

  15. QuickEval: a web application for psychometric scaling experiments

    NASA Astrophysics Data System (ADS)

    Van Ngo, Khai; Storvik, Jehans J.; Dokkeberg, Christopher A.; Farup, Ivar; Pedersen, Marius

    2015-01-01

    QuickEval is a web application for carrying out psychometric scaling experiments. It offers the possibility of running controlled experiments in a laboratory, or large scale experiment over the web for people all over the world. It is a unique one of a kind web application, and it is a software needed in the image quality field. It is also, to the best of knowledge, the first software that supports the three most common scaling methods; paired comparison, rank order, and category judgement. It is also the first software to support rank order. Hopefully, a side effect of this newly created software is that it will lower the threshold to perform psychometric experiments, improve the quality of the experiments being carried out, make it easier to reproduce experiments, and increase research on image quality both in academia and industry. The web application is available at www.colourlab.no/quickeval.

  16. International Space Station (ISS) Low Pressure Intramodule Quick Disconnect Failures

    NASA Technical Reports Server (NTRS)

    Lewis, John F.; Harris, Danny; Link, Dwight; Morrison, Russel

    2004-01-01

    A failure of an ISS intermodule Quick Disconnect (QD) during protoflight vibration testing of ISS regenerative Environmental Control and Life Support (ECLS) hardware led to the discovery of QD design, manufacturing, and test flaws which can yield the male QD susceptible to failure of the secondary housing seal and inadequate housing assembly locking mechanisms. Discovery of this failure had large implications when considering that currently there are 399 similar units on orbit and approximately 1100 units on the ground integrated into flight hardware. Discovery of the nature of the failure required testing and analysis and implementation of a recovery plan requiring part screening and review of element level and project hazard analysis to determine if secondary seals are required. Implementation also involves coordination with the Nodes and MPLM project offices, Regenerative ECLS Project, ISS Payloads, JAXA, ESA, and ISS Logistics and Maintenance.

  17. Report on JANNAF panel on shotgun/relative quickness testing

    NASA Technical Reports Server (NTRS)

    Gould, R. A.

    1980-01-01

    As the need for more energetic solid propellants continues, a number of problems arises. One of these is the tendency of high energy propellants to transition from burning (deflagration) to detonation in regions where the propellant is present in small particle sizes; e.g., in case bonding areas of a motor after a rapid depressurization causes a shear zone at the bond interface as the stressed propellant and motor case relax at different rates. In an effort to determine the susceptibility of propellants to high strain rate break up (friability), and subsequent DDT, the propulsion community uses the shotgun/relative quickness test as one of a number of screening tests for new propellant formulations. Efforts to standardize test techniques and equipment are described.

  18. The salt stimulation property of serum paraoxonase (PON1) could be a valuable factor in evaluating the enzyme status in ischemic stroke: the role of activity-determined PON1 192Q/R phenotypes.

    PubMed

    Mahrooz, Abdolkarim; Alizadeh, Ahad; Gohari, Ghorban

    2014-03-15

    Variability in the activity and function of serum paraoxonase (PON1) as an antioxidant enzyme involved in vascular disease has been observed. In this study, we investigated the enzyme activity parameters, based on the 192Q/R polymorphism, using the salt stimulation property of PON1 as an important although neglected property. In total, 172 participants, including 90 control subjects and 82 patients with ischemic stroke were enrolled. Paraoxonase activity (para), arylesterase activity (aryl) and salt-stimulated paraoxonase activity (para-Na) were measured by spectrophotometric assays. The distribution of the 192Q/R phenotypes was determined using the dual substrate method. We observed that the para-percent (percentage stimulation of paraoxonase activity by NaCl) was significantly lower in the patients than in the controls, in both the QR+RR group (p=0.01) and QQ phenotypes (p=0.001). More than the other parameters, para-percent and para-degree (para-Na-para) are affected by ischemic stroke (p<0.001). In R-containing phenotypes, significant correlations were observed between both aryl and para, with age (r=-0.364, p=0.016; and r=-0.333, p=0.029, respectively). The salt stimulation properties of PON1 activity, particularly the parameters para-percent and para-degree, could be considered more important than the prevalent activities of the enzyme, and could be better applied for the assessment of PON1 status in ischemic stroke rather than the common enzyme activities. PMID:24433930

  19. A method for quickly and exactly extracting hepatic vein

    NASA Astrophysics Data System (ADS)

    Xiong, Qing; Yuan, Rong; Wang, Luyao; Wang, Yanchun; Li, Zhen; Hu, Daoyu; Xie, Qingguo

    2013-02-01

    It is of vital importance that providing detailed and accurate information about hepatic vein (HV) for liver surgery planning, such as pre-operative planning of living donor liver transplantation (LDLT). Due to the different blood flow rate of intra-hepatic vascular systems and the restrictions of CT scan, it is common that HV and hepatic portal vein (HPV) are both filled with contrast medium during the scan and in high intensity in the hepatic venous phase images. As a result, the HV segmentation result obtained from the hepatic venous phase images is always contaminated by HPV which makes accurate HV modeling difficult. In this paper, we proposed a method for quick and accurate HV extraction. Based on the topological structure of intra-hepatic vessels, we analyzed the anatomical features of HV and HPV. According to the analysis, three conditions were presented to identify the nodes that connect HV with HPV in the topological structure, and thus to distinguish HV from HPV. The method costs less than one minute to extract HV and provides a correct and detailed HV model even with variations in vessels. Evaluated by two experienced radiologists, the accuracy of the HV model obtained from our method is over 97%. In the following work, we will extend our work to a comprehensive clinical evaluation and apply this method to actual LDLT surgical planning.

  20. Probabilistic model for quick detection of dissimilar binary images

    NASA Astrophysics Data System (ADS)

    Mustafa, Adnan A. Y.

    2015-09-01

    We present a quick method to detect dissimilar binary images. The method is based on a "probabilistic matching model" for image matching. The matching model is used to predict the probability of occurrence of distinct-dissimilar image pairs (completely different images) when matching one image to another. Based on this model, distinct-dissimilar images can be detected by matching only a few points between two images with high confidence, namely 11 points for a 99.9% successful detection rate. For image pairs that are dissimilar but not distinct-dissimilar, more points need to be mapped. The number of points required to attain a certain successful detection rate or confidence depends on the amount of similarity between the compared images. As this similarity increases, more points are required. For example, images that differ by 1% can be detected by mapping fewer than 70 points on average. More importantly, the model is image size invariant; so, images of any sizes will produce high confidence levels with a limited number of matched points. As a result, this method does not suffer from the image size handicap that impedes current methods. We report on extensive tests conducted on real images of different sizes.

  1. Interference currents can be located and measured quickly

    SciTech Connect

    Swaim, W.H.

    1995-03-01

    Pipelines or cables can carry unwanted and often unexpected electrical current due to interference from another line, subway systems, or other conductors in the area. Since corrosion is likely to occur in areas where current leaves a source and enters ground soil, it is important to locate and measure the amount of current and find its origin as quickly as possible. Interference currents can be located by the method described in the paper and by examining the areas near the company pipeline and the nearby foreign pipeline. As discussed, work is simplified by the existence of a new foreign rectifier and anode ground bed. By measuring current in the company line at several locations on both sides of the new anode ground bed and the foreign pipeline, it can be established that the foreign line is indeed the source of interference current. In actual cases, there may be currents from several other sources. The easiest way to measure current from these other sources is to use the interrupter on each, one at a time. If this is not practical, a full-floating zero procedure can be used to measure total current from all sources.

  2. Cloudy_3D: Quick Pseudo-3D Photoionization Code

    NASA Astrophysics Data System (ADS)

    Morisset, Christophe

    2011-03-01

    We developed a new quick pseudo-3D photoionization code based on Cloudy (G. Ferland) and IDL (RSI) tools. The code is running the 1D photoionization code Cloudy various times, changing at each run the input parameters (e.g. inner radius, density law) according to an angular law describing the morphology of the object. Then a cube is generated by interpolating the outputs of Cloudy. In each cell of the cube, the physical conditions (electron temperature and density, ionic fractions) and the emissivities of lines are determined. Associated tools (VISNEB and VELNEB_3D) are used to rotate the nebula and to compute surface brightness maps and emission line profiles, given a velocity law and taking into account the effect of the thermal broadening and eventually the turbulence. Integrated emission line profiles are computed, given aperture shapes and positions (seeing and instrumental width effects are included). The main advantage of this tool is the short time needed to compute a model (a few tens minutes).

  3. Quick setup of unit test for accelerator controls system

    SciTech Connect

    Fu, W.; D'Ottavio, T.; Gassner, D.; Nemesure, S.; Morris, J.

    2011-03-28

    Testing a single hardware unit of an accelerator control system often requires the setup of a program with graphical user interface. Developing a dedicated application for a specific hardware unit test could be time consuming and the application may become obsolete after the unit tests. This paper documents a methodology for quick design and setup of an interface focused on performing unit tests of accelerator equipment with minimum programming work. The method has three components. The first is a generic accelerator device object (ADO) manager which can be used to setup, store, and log testing controls parameters for any unit testing system. The second involves the design of a TAPE (Tool for Automated Procedure Execution) sequence file that specifies and implements all te testing and control logic. The sting third is the design of a PET (parameter editing tool) page that provides the unit tester with all the necessary control parameters required for testing. This approach has been used for testing the horizontal plane of the Stochastic Cooling Motion Control System at RHIC.

  4. Quick monitoring of pozzolanic reactivity of waste ashes.

    PubMed

    Sinthaworn, Suppachai; Nimityongskul, Pichai

    2009-05-01

    This article proposes a quick method of monitoring for pozzolanic reactivity of waste ashes by investigating the electrical conductivity of the suspension at an elevated temperature. This suspension is obtained by mixing tested pozzolan with an ordinary Portland cement (OPC) solution produced by mixing ordinary Portland cement with water. For comparison, silica fume, metakaolin, rice husk ash and river sand - whose pozzolanic reactivities range from reactive to inert - were used in the experimental investigation. The electrical conductivity of the suspension was continually recorded by using an electrical conductivity meter and stored by using a personal computer for a period of slightly over 1day. The indicative parameters that can be related to pozzolanic reactivity were discussed and analyzed in detail. It was found that it is possible to determine the pozzolanic reactivity of fly ash within 28h by using the proposed technique, as compared to 7 or 28 days for the determination of strength activity index according to ASTM. This technique would help concrete technologists to speedily investigate the quality of fly ash for use as a cement replacement in order to alleviate pollution caused by cement production and solve disposal problems of waste ashes. PMID:19131237

  5. “They think surgery is just a quick fix”

    PubMed Central

    2014-01-01

    Background To prevent weight regain, patients undergoing weight loss surgery are encouraged to change their exercise and dietary habits. Building on previous research, the aim of this study was to explore women's experiences of changing exercise habits – focusing on women participating in a group based rehabilitation program including surgical as well as non-surgical participants. Findings Based on interviews with the 11 women included in this study, as well as participant observation, two themes were identified; 1) Pushing ones tolerance limits, and 2) Rebutting the “quick fix” fallacy. Taken together, the findings showcase how being a part of this mixed group involved having to relate to social stigmas, as well as notions regarding successful and non-successful surgical outcomes. Although such notions may be useful in identifying potential challenges related to changing exercise habits, they do not illuminate the complexity of undergoing such changes following weight loss surgery. Conclusion The findings point to the need of acknowledging patients' own exceriences to determine how successful they are after surgery. Given the findings, I argue for the need to reconsider the notion of success in relation to group based interventions. PMID:25022267

  6. The research about the quick algorithm of subtracting the DTM

    NASA Astrophysics Data System (ADS)

    Chian, Tao; Li, Yan; Geng, Juan

    2007-06-01

    There is some relationship between the Digital Surface Model (DSM) and the Digital Terrain Model (DTM). The contents they express are relative: DSM expresses the height we focus on about the surface of the ground, including the terrain and the objects on it, and DTM only gives the height of the terrain excluding the objects above it. DSM have the information of DTM, therefore it provides us a chance to subtract the DTM from the DSM. Mathematical morphology is a new method applied to Imagery processing and pattern recognition fields. It provides an effective method of subtracting DTM from DSM. But in practical application, the original calculations of these two are in low efficiency. Especially when it comes to a large template or huge block data, the computation speed can be a very headache question. This paper is studying the implementing process of the Open and the Close operators, especially the Erode and the Dilate calculations. Then we have developed two kinds of quick algorithms, which are aim to avoid the repeated calculation, and to enhance the efficiency sharply. The step of the two operations also should be refined, while the disposals are different from each other depending on the distinct configuration of these two kinds of algorithms.

  7. Summary of Proton Test on the Quick Logic QL3025 at Indiana University

    NASA Technical Reports Server (NTRS)

    Katz, Richard

    1998-01-01

    This issue of the Programmable Logic Application Notes is a compilation of topics: (1) Proton irradiation tests were performed on the Quick Logic QL3025 at the Indian University Cyclotron facility. The devices, tests, and results are discussed; (2) The functional failure of EEPROM's in heavy ion environment is presented; (3) the Act 1 architecture is summarized; (4) Antifuse hardness and hardness testing is updated; the single even upset (SEU) response of hardwired flip-flops is also presented; (4) Total dose results of the ACT 2 and ACT 3 circuits is presented in a chart; (5) Recent sub-micron devices testing of total dose is presented in a chart along with brief discussion; and (6) a reference to the WWW site for more articles of interest.

  8. Psychometric Properties of the Quick Inventory of Depressive Symptomatology in Adolescents

    PubMed Central

    Bernstein, Ira H.; Rush, A. John; Trivedi, Madhukar H.; Hughes, Carroll W.; Macleod, Laurie; Witte, Bradley P.; Jain, Shailesh; Mayes, Taryn L.; Emslie, Graham J.

    2010-01-01

    Objective The clinician-rated (QIDS-C16) and self-report (QIDS-SR16) versions of the 16-item Quick Inventory of Depressive Symptomatology have been extensively examined in adult populations. This study evaluated both versions of the QIDS and the 17-item Childrens Depressive Rating Scale-Revised (CDRS-R) in an adolescent outpatient sample. Method Both the QIDS-C16 and QIDS-SR16 were completed for the adolescents. Three different methods were used to complete the QIDS-C16: (a) adolescents responses to clinician interviews; (b) parents responses to clinician interview; and (c) a composite score using the most pathological response from the two interviews. Both classical and item response theory methods were used. Factor analyses evaluated the dimensionality of each scale. Results The sample included 140 adolescent outpatients. All versions of the QIDS, save the parent interview, and the CDRS-R were very reliable (? ? 0.8). All four versions of the QIDS are reasonably effective and unidimensional. The CDRS-R was clearly at least two-dimensional. The CDRS-R was the most discriminating among low and extremely high levels of depression. The QIDS-SR16 was the most discriminating at moderate levels of depression. There was no relation between the QIDS scores and concurrent Axis III comorbidities. Conclusion The QIDS-C16 and the QIDS-SR16 are suitable for use in adolescents. PMID:20683845

  9. Response

    ERIC Educational Resources Information Center

    Higgins, Chris

    2012-01-01

    This article presents the author's response to the reviews of his book, "The Good Life of Teaching: An Ethics of Professional Practice." He begins by highlighting some of the main concerns of his book. He then offers a brief response, doing his best to address the main criticisms of his argument and noting where the four reviewers (Charlene

  10. A quick guide for building a successful bioinformatics community.

    PubMed

    Budd, Aidan; Corpas, Manuel; Brazas, Michelle D; Fuller, Jonathan C; Goecks, Jeremy; Mulder, Nicola J; Michaut, Magali; Ouellette, B F Francis; Pawlik, Aleksandra; Blomberg, Niklas

    2015-02-01

    "Scientific community" refers to a group of people collaborating together on scientific-research-related activities who also share common goals, interests, and values. Such communities play a key role in many bioinformatics activities. Communities may be linked to a specific location or institute, or involve people working at many different institutions and locations. Education and training is typically an important component of these communities, providing a valuable context in which to develop skills and expertise, while also strengthening links and relationships within the community. Scientific communities facilitate: (i) the exchange and development of ideas and expertise; (ii) career development; (iii) coordinated funding activities; (iv) interactions and engagement with professionals from other fields; and (v) other activities beneficial to individual participants, communities, and the scientific field as a whole. It is thus beneficial at many different levels to understand the general features of successful, high-impact bioinformatics communities; how individual participants can contribute to the success of these communities; and the role of education and training within these communities. We present here a quick guide to building and maintaining a successful, high-impact bioinformatics community, along with an overview of the general benefits of participating in such communities. This article grew out of contributions made by organizers, presenters, panelists, and other participants of the ISMB/ECCB 2013 workshop "The 'How To Guide' for Establishing a Successful Bioinformatics Network" at the 21st Annual International Conference on Intelligent Systems for Molecular Biology (ISMB) and the 12th European Conference on Computational Biology (ECCB). PMID:25654371

  11. A Quick Guide for Building a Successful Bioinformatics Community

    PubMed Central

    Budd, Aidan; Corpas, Manuel; Brazas, Michelle D.; Fuller, Jonathan C.; Goecks, Jeremy; Mulder, Nicola J.; Michaut, Magali; Ouellette, B. F. Francis; Pawlik, Aleksandra; Blomberg, Niklas

    2015-01-01

    “Scientific community” refers to a group of people collaborating together on scientific-research-related activities who also share common goals, interests, and values. Such communities play a key role in many bioinformatics activities. Communities may be linked to a specific location or institute, or involve people working at many different institutions and locations. Education and training is typically an important component of these communities, providing a valuable context in which to develop skills and expertise, while also strengthening links and relationships within the community. Scientific communities facilitate: (i) the exchange and development of ideas and expertise; (ii) career development; (iii) coordinated funding activities; (iv) interactions and engagement with professionals from other fields; and (v) other activities beneficial to individual participants, communities, and the scientific field as a whole. It is thus beneficial at many different levels to understand the general features of successful, high-impact bioinformatics communities; how individual participants can contribute to the success of these communities; and the role of education and training within these communities. We present here a quick guide to building and maintaining a successful, high-impact bioinformatics community, along with an overview of the general benefits of participating in such communities. This article grew out of contributions made by organizers, presenters, panelists, and other participants of the ISMB/ECCB 2013 workshop “The ‘How To Guide’ for Establishing a Successful Bioinformatics Network” at the 21st Annual International Conference on Intelligent Systems for Molecular Biology (ISMB) and the 12th European Conference on Computational Biology (ECCB). PMID:25654371

  12. Rejecting probability summation for RF patterns, not so Quick!

    PubMed

    Baldwin, Alex; Schmidtmann, Gunnar; Kingdom, Frederick; Hess, Robert

    2015-09-01

    Investigations of shape processing frequently use radial frequency (RF) patterns. An RF pattern is a circular contour with a periodic modulation applied to its radius. The way in which the visual system detects these patterns has been studied in several previous summation experiments. Typically data is compared to predictions from a model that detects each part of the pattern independently and then combines those local outputs through probability summation (these models predict less summation). This is then rejected in favour of a model that detects the whole RF pattern globally (predicting more summation). The "Quick pooling" probability summation model they use is based on the High Threshold Theory (HTT) of detection however, which lacks empirical support. In our study we first measured receiver operating characteristic curves to demonstrate that models of RF pattern detection should be based on Signal Detection Theory (SDT). Our data followed the SDT prediction (curved lines) rather than the HTT prediction (straight lines). We then measured psychometric functions for a four-cycle RF pattern as its lobes were modulated individually and in combination. We also collected data for summation between individual cycles in a quad of RF patterns to see whether within-RF summation differed from between-RF summation. Although thresholds for the between-RF condition were higher, the level of summation was very similar to that in the within-RF condition. We analysed our data using a maximum-likelihood fit of SDT-based additive and probability summation models. These include five parameters: individual gains for each cycle of the RF and a transducer exponent. We find that our probability summation model is able to provide as good a fit to both datasets as the additive summation (global) model. We discuss how the use of a HTT model may have led to premature rejection of probability summation in the past. Meeting abstract presented at VSS 2015. PMID:26326719

  13. The effect of the ketogenic diet on hippocampal GluR5 and Glu(6 mRNA expression and Q/R site editing in the kainate-induced epilepsy model.

    PubMed

    Xu, Xiangping; Sun, Ruopeng; Jin, Ruifeng

    2008-10-01

    Treatment with the ketogenic diet has been used to control refractory epilepsy for many years, although its anticonvulsant mechanism is unknown. By modulating synaptic transmission in the hippocampus, kainate receptors and their RNA editing might play a role in the antiseizure action of the treatment. To investigate the potential effect of the ketogenic diet on GluR(5) mRNA and GluR(6) mRNA expression and Q/R site editing, we used the kainate-induced epilepsy model in the present study. Reverse transcription polymerase chain reaction was performed to determine GluR(5) and GluR(6) mRNA expression, and RNA editing was analyzed with the BbvIota restriction enzyme assay. The results demonstrated that expression of GluR(6) mRNA, but not GluR(5) mRNA, was significantly increased after 8 weeks of dietary treatment. Neither the GluR(5) nor the GluR(6) RNA editing rate at the Q/R site was significantly changed by dietary treatment. These data indicate that GluR(6) may be involved in the anticonvulsant mechanism of ketogenic diet treatment. PMID:18606572

  14. Older Homebound Women: Sharing the Risk with Age-Peers of Being Unable to Reach Help Quickly

    PubMed Central

    Porter, Eileen J.; Lasiter, Sue

    2012-01-01

    The purpose of this facet of a longitudinal descriptive phenomenological study of the experience of reaching help quickly for older homebound women was to explore the personal-social context (life-world) of situations when age-peers had needed to reach help quickly (RHQ). Twenty-five women aged 85–95 (13 subscribers to a personal emergency response system and 12 non-subscribers) reported 80 peer situations. Life-world was characterized by sharing with peers the risk of being unable to RHQ. Knowledge of peer situations had varying degrees of influence on participants’ decisions to adopt and use RHQ devices. Findings support the need for healthcare professionals to explore the influences of age-peer RHQ situations upon adoption and use of devices to RHQ by older homebound women. PMID:23070958

  15. A method for quick assessment of CO2 storage capacity in closedand semi-closed saline formations

    SciTech Connect

    Zhou, Q.; Birkholzer, J.; Tsang, C.F.; Rutqvist, J.

    2008-02-10

    Saline aquifers of high permeability bounded by overlying/underlying seals may be surrounded laterally by low-permeability zones, possibly caused by natural heterogeneity and/or faulting. Carbon dioxide (CO{sub 2}) injection into and storage in such 'closed' systems with impervious seals, or 'semi-closed' systems with nonideal (low-permeability) seals, is different from that in 'open' systems, from which the displaced brine can easily escape laterally. In closed or semi-closed systems, the pressure buildup caused by continuous industrial-scale CO{sub 2} injection may have a limiting effect on CO{sub 2} storage capacity, because geomechanical damage caused by overpressure needs to be avoided. In this research, a simple analytical method was developed for the quick assessment of the CO{sub 2} storage capacity in such closed and semi-closed systems. This quick-assessment method is based on the fact that native brine (of an equivalent volume) displaced by the cumulative injected CO{sub 2} occupies additional pore volume within the storage formation and the seals, provided by pore and brine compressibility in response to pressure buildup. With nonideal seals, brine may also leak through the seals into overlying/underlying formations. The quick-assessment method calculates these brine displacement contributions in response to an estimated average pressure buildup in the storage reservoir. The CO{sub 2} storage capacity and the transient domain-averaged pressure buildup estimated through the quick-assessment method were compared with the 'true' values obtained using detailed numerical simulations of CO{sub 2} and brine transport in a two-dimensional radial system. The good agreement indicates that the proposed method can produce reasonable approximations for storage-formation-seal systems of various geometric and hydrogeological properties.

  16. Using QR Codes in Classrooms

    ERIC Educational Resources Information Center

    Cetner, Michelle

    2015-01-01

    For years, many schools and districts have had strict policies banning the use of students' personal electronic devices in classrooms. However, some schools are beginning to embrace the educational value of handheld Web-enabled devices that students already bring to school each day. As teachers begin to explore the educational opportunities that

  17. Hayabusa Reentry and Recovery of Its Capsule -Quick Report

    NASA Astrophysics Data System (ADS)

    Kawaguchi, Junichiro; Yoshikawa, Makoto; Kuninaka, Hitoshi

    The Hayabusa spacecraft successfully returned to the Earth and re-entered into the atmosphere for sample recovery after also the successful touching-downs to NEO Itokawa in 2005. The reentry occurred on June 13th, and took place in Woomera Prohibited Area (WPA) of Australia. This paper presents how the reentry and recovery operations were performed, and also reports the current status about the sample curation activity. The Hayabusa mission aims at demonstrating key technologies requisite for future real Sample and Return missions. However, the spacecraft adopted the actual Sample and Return flight sequence and was designed to make a world's first round trip to an extra terrestrial object with touching-down and lifting-off. It is the spacecraft propelled by the ion engines aboard for interplanetary cruise. The Hayabusa spacecraft launched in May of 2003 reached NEO Itokawa in September of 2005 via Earth gravity assist in May of 2004. It stayed there for about two and a half months, and performed detailed scientific observation and mapping and determination of the shape. In November of 2005, the spacecraft made two touching-downs and lifting-offs having attempted collection of surface sample. At the second opportunity, the spacecraft directed shooting a projectile. But, due to the programming problem, presumably the projectile was not shot. However, the spacecraft may have captured some small amount of sample particles in a catcher aboard, when the spacecraft made actual touches down to the surface. The spacecraft suffered from fuel leak in December of 2005, and the communication resumed after seven weeks of hiatus. And the ion engines all faced their life by November of 2009, and the project team devised an alternative drive configuration and successfully coped with the difficulty. Despite many hardships, the spacecraft has been operated for return cruise, and it made a reentry for sample recovery this June. The sample catcher was retrieved at WPA and transported back to the curation facility of JAXA. Currently the curators have examined analyzed the catcher recovered. This presentation quickly reports recent status of the spacecraft, capsule and sample analysis.

  18. 46 CFR 154.544 - Quick-closing shut-off valves.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Quick-closing shut-off valves. 154.544 Section 154.544... and Process Piping Systems 154.544 Quick-closing shut-off valves. The quick-closing shut-off valve under 154.530, 154.532 and 154.538 must: (a) Be a shut-off valve; (b) Close from the time...

  19. Bullet-itis (or What's Wrong with a Quick Fix?)

    ERIC Educational Resources Information Center

    Servage, Laura

    2008-01-01

    "Bullet-itis" (or perhaps what could be called Power Point Disease) is the tendency, in seemingly all facets of life, to seek out knowledge in its most abbreviated and rapidly consumable form. Presumably this abbreviated format is a pragmatic response to the notoriously busy lives of teachers and administrators. Given so many practical and

  20. Bullet-itis (or What's Wrong with a Quick Fix?)

    ERIC Educational Resources Information Center

    Servage, Laura

    2008-01-01

    "Bullet-itis" (or perhaps what could be called Power Point Disease) is the tendency, in seemingly all facets of life, to seek out knowledge in its most abbreviated and rapidly consumable form. Presumably this abbreviated format is a pragmatic response to the notoriously busy lives of teachers and administrators. Given so many practical and…

  1. [Efficiency of KAT-quick P.f. test (KAT medical, SAR) among the populations of drug-resistant parasites].

    PubMed

    Rabinovich, S A; Le, Dines Kong; Nguen, Van Ha; Morozov, E N; Toropov, D E; Kukina, I V; Maksakovskaia, E V; Iakovenko, M A; Chaly?, V F; Fandeev, V A; Pozdniakova, E A; Nikitiuk, Iu E; Sergiev, V P

    2006-01-01

    The KAT-Quick P.f. test (KAT Medical, South African Republic) is based on the detection of protein HPR II produced by trophozoites and young gametocytes of P. falciparum. This test was conducted by the authors in the distribution areas of P. falciparum strains differing in the spectrum of drug resistance. Five hundred and forty-nine blood samples from febrile patients in Vietnam (n=84), Sierra Leone (n=41), Nigeria (n=14), Tanzania (n=8), Kenya (n=5), and Tadjikistan (n=397) were tested. Microscopy served as a primary control. Detection of P. falciparum DNA, using polymerase chain reaction (PCR) with included primers (nested PCR) of the most sensitive modification of PCR was a final control. The efficiency of the KAT-Quick P.f. test was estimated as a ratio of the number of its positive results to those of PCR. It was equal to 98-95%. The KAT-Quick P.f. test revealed no false-positive case associated with the genome of the parasite. The specificity of the test was determined as a ratio of the number of its negative (no P. falciparum) results to those of PCR. The blood samples from patients with vivax malaria and from those with nonmalarial fever were investigated. There was no cross reaction of the KAT-Quick P.f. test system for P. falciparum with that for P. vivax. The KAT-Quick P.f. test yielded no positive reaction with the blood from patients with non-malarial fever. Drug resistance depending on the spectrum of specific drugs caused its emergence may be determined by one or several mechanisms that are ultimately determined by one, the key mechanism. Thus, the findings suggest that multidrug resistance of P. falciparum does not trigger the occurrence of changes in its surface antigen--HRPII that is responsible for the efficiency of the KAT-Quick P.f. test. These may be also extrapolated to other rapid tests patterned after the same principle. PMID:16813240

  2. A Quick Responsive Fluorogenic pH Probe for Ovarian Tumor Imaging

    PubMed Central

    Tung, Ching-Hsuan; Qi, Jianjun; Hu, Lingchuan; Han, Myung Shin; Kim, Young

    2015-01-01

    A novel cell-permeable compound, CypH-1, that is non-fluorescent at neutral pH, but fluoresces under mildly acidic conditions with a near infrared maximum emission wavelength was designed for the detection of tumors in the clinical setting. The potential of CypH-1 in ovarian cancer imaging was demonstrated using a murine model. The intraperitoneally administered CypH-1 results in a robust fluorescence signal of discrete neoplastic lesions with millimeter range resolution within few hours. Moreover, fluorescence signal is strikingly enhanced at peripheral regions of tumors at the microscopic level suggesting a sharp physiological difference at the tumor/normal tissue interface. This robust acid-activated imaging agent is expected to have significant impact in broad surgical and diagnostic applications. PMID:26284146

  3. SHORT-TERM SCREENING TEST FOR QUICK RESPONSES TO POLLUTANTS WHERE HEALTH EFFECTS DATA ARE LACKING

    EPA Science Inventory

    Results of assessment of various health effects parameters were correlated to determine which tests were the most sensitive indicators of toxic effects of exposure to sulfate aerosols. Inhalation studies were conducted involving single 3-hr exposure to various concentrations of c...

  4. 7 CFR 1486.206 - What is the Quick Response Marketing Fund?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... CORPORATION, DEPARTMENT OF AGRICULTURE LOANS, PURCHASES, AND OTHER OPERATIONS EMERGING MARKETS PROGRAM... established to address priority constraints to market access that arise because of unforeseen events; market conditions in emerging markets are often less predictable than in more developed countries. It...

  5. Food Stamp Quick Response Studies. Categorical Eligibility Descriptive Report. Final Draft.

    ERIC Educational Resources Information Center

    Treesh, Kevin; Ruggles, Patricia

    This report reviews the impact of the categorical eligibility provision of the Food Security Act of 1985 (FSA) on the program participation, administrative costs, and error rates of the Food Stamp Program (FSP). The Act automatically granted eligibility for the FSP to households composed entirely of participants in the Aid to Families with

  6. A Clinical Method for the Detection and Quantification of Quick Respiratory Hyperkinesia

    ERIC Educational Resources Information Center

    Hixon, Thomas J.; Hoit, Jeannette D.

    2006-01-01

    Purpose: Quick respiratory hyperkinesia can be difficult to detect with the naked eye. A clinical method is described for the detection and quantification of quick respiratory hyperkinesia. Method: Flow at the airway opening is sensed during spontaneous apnea (rest), voluntary breath holding (postural fixation), and voluntary volume displacement…

  7. 40 CFR 22.18 - Quick resolution; settlement; alternative dispute resolution.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 1 2012-07-01 2012-07-01 false Quick resolution; settlement; alternative dispute resolution. 22.18 Section 22.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... REVOCATION/TERMINATION OR SUSPENSION OF PERMITS Prehearing Procedures 22.18 Quick resolution;...

  8. 40 CFR 22.18 - Quick resolution; settlement; alternative dispute resolution.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Quick resolution; settlement; alternative dispute resolution. 22.18 Section 22.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... REVOCATION/TERMINATION OR SUSPENSION OF PERMITS Prehearing Procedures 22.18 Quick resolution;...

  9. 40 CFR 22.18 - Quick resolution; settlement; alternative dispute resolution.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 1 2014-07-01 2014-07-01 false Quick resolution; settlement; alternative dispute resolution. 22.18 Section 22.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... REVOCATION/TERMINATION OR SUSPENSION OF PERMITS Prehearing Procedures 22.18 Quick resolution;...

  10. 40 CFR 22.18 - Quick resolution; settlement; alternative dispute resolution.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Quick resolution; settlement; alternative dispute resolution. 22.18 Section 22.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... REVOCATION/TERMINATION OR SUSPENSION OF PERMITS Prehearing Procedures 22.18 Quick resolution;...

  11. 40 CFR 22.18 - Quick resolution; settlement; alternative dispute resolution.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 1 2011-07-01 2011-07-01 false Quick resolution; settlement; alternative dispute resolution. 22.18 Section 22.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... REVOCATION/TERMINATION OR SUSPENSION OF PERMITS Prehearing Procedures 22.18 Quick resolution;...

  12. Quick-Guides to Inclusion: Ideas for Educating Students with Disabilities, Second Edition

    ERIC Educational Resources Information Center

    Giangreco, Michael F., Ed.; Doyle, Mary Beth, Ed.

    2007-01-01

    Now for the first time ever, the bestselling, teacher-trusted "Quick-Guides to Inclusion" are available in a single updated and revised volume -- complete with seven all-new Quick-Guides. A resource for busy K-12 teachers who need fast, friendly, and practical guidance on including students with disabilities in general education classrooms, this…

  13. A Clinical Method for the Detection and Quantification of Quick Respiratory Hyperkinesia

    ERIC Educational Resources Information Center

    Hixon, Thomas J.; Hoit, Jeannette D.

    2006-01-01

    Purpose: Quick respiratory hyperkinesia can be difficult to detect with the naked eye. A clinical method is described for the detection and quantification of quick respiratory hyperkinesia. Method: Flow at the airway opening is sensed during spontaneous apnea (rest), voluntary breath holding (postural fixation), and voluntary volume displacement

  14. Quick-Guides to Inclusion: Ideas for Educating Students with Disabilities, Second Edition

    ERIC Educational Resources Information Center

    Giangreco, Michael F., Ed.; Doyle, Mary Beth, Ed.

    2007-01-01

    Now for the first time ever, the bestselling, teacher-trusted "Quick-Guides to Inclusion" are available in a single updated and revised volume -- complete with seven all-new Quick-Guides. A resource for busy K-12 teachers who need fast, friendly, and practical guidance on including students with disabilities in general education classrooms, this

  15. An Experimental Examination of Quick Writing in the Middle School Science Classroom

    ERIC Educational Resources Information Center

    Benedek-Wood, Elizabeth; Mason, Linda H.; Wood, Philip H.; Hoffman, Katie E.; McGuire, Ashley

    2014-01-01

    A staggered A-B design study was used to evaluate the effects of Self- Regulated Strategy Development (SRSD) instruction for quick writing in middle school science across four classrooms. A sixth-grade science teacher delivered all students' writing assessment and SRSD instruction for informative quick writing. Results indicated that…

  16. An Experimental Examination of Quick Writing in the Middle School Science Classroom

    ERIC Educational Resources Information Center

    Benedek-Wood, Elizabeth; Mason, Linda H.; Wood, Philip H.; Hoffman, Katie E.; McGuire, Ashley

    2014-01-01

    A staggered A-B design study was used to evaluate the effects of Self- Regulated Strategy Development (SRSD) instruction for quick writing in middle school science across four classrooms. A sixth-grade science teacher delivered all students' writing assessment and SRSD instruction for informative quick writing. Results indicated that

  17. "QuickSmart": A Basic Academic Skills Intervention for Middle School Students with Learning Difficulties

    ERIC Educational Resources Information Center

    Graham, Lorraine; Bellert, Anne; Thomas, Jenny; Pegg, John

    2007-01-01

    "QuickSmart" is a basic academic skills intervention designed for persistently low-achieving students in the middle years of schooling that aims to improve the automaticity of basic skills to improve higher-order processes, such as problem solving and comprehension, as measured on standardized tests. The "QuickSmart" instructional program consists

  18. Distal radius fractures: a prospective randomized comparison of fibreglass tape with QuickCast.

    PubMed

    Cohen, M S; Frillman, T

    1997-05-01

    Cast immobilization remains the most commonly employed method in the treatment of distal radius fractures. In an effort to test a new shrinkable polymer-coated casting material (QuickCast), a prospective randomized study was performed on 30 consecutive distal radius fractures. Fractures were divided into three groups based on the severity of fracture and treated with either a conventional short-arm fibreglass tape cast or a QuickCast. Results showed no significant differences in minor cast complications or maintenance of fracture reduction between conventional fibreglass tape and the QuickCast material. The shrinkable QuickCast, however, resulted in an average of one less cast change in all groups. This reduction in time and labour must be weighed against the slightly increased cost of the QuickCast immobilizer. PMID:9282188

  19. ARM Quick-looks Database for North Slope Alaska (NSA) sites

    DOE Data Explorer

    Stamnes, Knut [NSA Site Scientist

    From these pages one can monitor parts of the data acquisition process and access daily data visualizations from the different instruments. These data visualizations are produced in near real time automatically and are called Quick-Looks (QLs). The quick-looks contains unofficial data of unknown quality. Once data is released one can obtain the full data-set from any instrument available, and along with that, a statement about the data quality from the ARM archive. The database provides Quick-looks for the Barrow ACRF site (NSA C1), the Atqasuk ACRF site (NSA C2), or the SHEBA ice campaign of 1997 and 1998. As of 12-17-08, the database had more than 528,000 quick-looks available as data figures and data plots. No password is required for Quick-look access. (Specialized Interface)

  20. Build great web search applications quickly with Solr and Blacklight

    NASA Astrophysics Data System (ADS)

    DuPlain, Ron; Balser, Dana S.; Radziwill, Nicole M.

    2010-07-01

    The NRAO faced performance and usability issues after releasing a single-search-box ("Google-like") web application to query data across all NRAO telescope archives. Running queries with several relations across multiple databases proved to be very expensive in compute resources. An investigation for a better platform led to Solr and Blacklight, a solution stack which allows in-house development to focus on in-house problems. Solr is an Apache project built on Lucene to provide a modern search server with a rich set of features and impressive performance. Blacklight is a web user interface (UI) for Solr primarily developed by libraries at the University of Virginia and Stanford University. Though Blacklight targets libraries, it is highly adaptable for many types of search applications which benefit from the faceted searching and browsing, minimal configuration, and flexible query parsing of Solr and Lucene. The result: one highly reused codebase provides for millisecond response times and a flexible UI. Not just for observational data, NRAO is rolling out Solr and Blacklight across domains of library databases, telescope proposals, and more -- in addition to telescope data products, where integration with the Virtual Observatory is on-going.

  1. Quick self-healing and thermo-reversible liposome gel.

    PubMed

    Rao, Zhi; Inoue, Motoki; Matsuda, Miyuki; Taguchi, Tetsushi

    2011-01-01

    Self-assembled liposome gel from liposome and cholesterol-end capped polyethylene glycol, was systematically investigated by rheological method, especially in the aspect of its recovery ability upon either mechanical deformation or temperature change. The liposome gel was found to have rheological behavior similar to that of Maxwell model. The dynamic shear modulus of the liposome gel was dependent on both the liposome concentration and the polymer concentration. At low liposome concentration range (5-20 mM), dynamic shear modulus decreased considerably with the liposome concentration, implying the decrease of effective cross-linking density inside gel network due to the addition of liposome. The liposome gel network had a fast, self-healing ability even after high deformation, and the injectability of the gel was confirmed by injection experiment in vitro. The liposome gel also exhibited temperature stimuli responsive behavior and thermo-reversibility. Dynamic light scattering studies proved that the particle size of liposome remained almost unchanged before and after the addition of the polymer. PMID:20855187

  2. Development of a Quick Look Pandemic Influenza Modeling and Visualization Tool

    SciTech Connect

    Brigantic, Robert T.; Ebert, David S.; Corley, Courtney D.; Maciejewski, Ross; Muller, George; Taylor, Aimee E.

    2010-05-30

    Federal, State, and local decision makers and public health officials must prepare and exercise complex plans to contend with a variety of possible mass casualty events, such as pandemic influenza. Through the provision of quick look tools (QLTs) focused on mass casualty events, such planning can be done with higher accuracy and more realism through the combination of interactive simulation and visualization in these tools. If an event happens, the QLTs can then be employed to rapidly assess and execute alternative mitigation strategies, and thereby minimize casualties. This can be achieved by conducting numerous 'what-if' assessments prior to any event in order to assess potential health impacts (e.g., number of sick individuals), required community resources (e.g., vaccinations and hospital beds), and optimal mitigative decision strategies (e.g., school closures) during the course of a pandemic. In this presentation, we overview and demonstrate a pandemic influenza QLT, discuss some of the modeling methods and construct and visual analytic components and interface, and outline additional development concepts. These include the incorporation of a user selectable infectious disease palette, simultaneous visualization of decision alternatives, additional resource elements associated with emergency response (e.g., first responders and medical professionals), and provisions for other potential disaster events.

  3. Does quick to blame mean quick to anger? The role of agreeableness in dissociating blame and anger.

    PubMed

    Meier, Brian P; Robinson, Michael D

    2004-07-01

    Two studies investigated agreeableness, the accessibility of blame, and their potential interactive effects on anger. To measure the chronic accessibility of blame, a choice reaction time task was created that required participants to classify words as blameworthy or not. It was found that for individuals low in agreeableness, blame accessibility was positively related to anger and arguments during the course of daily life, hostile feelings during the course of a semester, and anger in response to a short video involving a blameworthy action. This same straightforward relationship between the accessibility of blame and anger did not characterize those high in agreeableness. The results suggest that agreeableness plays an important role in facilitating (low agreeableness) or inhibiting (high agreeableness) the link between accessible blame and anger. PMID:15200692

  4. Anticipatory synergy adjustments: Preparing a quick action in an unknown direction

    PubMed Central

    Zhou, Tao; Wu, Yen-Hsun; Bartsch, Angelo; Cuadra, Cristian; Zatsiorsky, Vladimir M.; Latash, Mark L.

    2013-01-01

    We studied a mechanism of feed-forward control of a multi-finger action, namely anticipatory synergy adjustments (ASAs) prior to a quick force correction in response to a change in the gain of the visual feedback. Synergies were defined as co-varied across trials adjustments of commands to fingers that stabilized (decreased variance of) the total force. We hypothesized that ASAs would be highly sensitive to prior information about the timing of the action but not to information on its direction, i.e., on whether the gain would go up or down. The subjects produced accurate constant total force by pressing with four fingers on individual force sensors. The feedback signal could change from veridical (the sum of finger forces) to modified, with the middle finger force multiplied by 0.2 or by 1.8. The timing of the gain change and its direction could be known or unknown to the subject in advance. When the timing of the gain change was known, ASA was seen as a drop in the synergy index starting about 250300 ms prior to the first visible correction of the total force. When the gain change timing was unknown, ASAs started much later, less than 100 ms prior to the total force correction. The magnitude of synergy index changes was significantly larger under the time known conditions. Information on the direction of the visual gain change had no effect on the ASA timing, while the ASA magnitude was somewhat larger when this information was not available to the subject. After the total force correction, the synergy index was significantly larger for the force signal computed using the modified gain values as compared to the synergy index value for the actual total force. We conclude that ASAs represent an important feed-forward motor control mechanism that allows preparing for a quick action even when the direction of the action is not known in advance. The results emphasize the subtle control of multi-finger synergies that are specific to the exact contributions of individual fingers to performance variables. The data fit well the central back-coupling hypothesis of synergies and the idea of control with referent body configurations. PMID:23494385

  5. Quick blots and nonradioactive detection of DNA probes for the identification of mosquitoes.

    PubMed

    Johnson, D W; Cockburn, A F; Seawright, J A

    1992-09-01

    The quick blot protocol is an improved technique for preparing crude insect homogenates for hybridization to nucleic acid probes. Individual insects are ground in wells of a microtiter plate and transferred to a dot blot manifold. This allows preparation of multiple filters and provides uniformity and an orderly arrangement of samples. The high background detection resulting from use of crude insect homogenates with nonradioactive detection systems was eliminated by incubating quick blot filters in a laundry stain remover containing proteases. We used mosquito species-specific DNA probes to demonstrate the effectiveness of nonradioactive DNA labeling systems with quick blots. PMID:1357085

  6. Nonsteroidal Anti-Inflammatory Drugs Quickly Resolve Symptoms Associated with EBV-Induced Infectious Mononucleosis in Patients with Atopic Predispositions.

    PubMed

    Kazama, Itsuro; Miura, Chieko; Nakajima, Toshiyuki

    2016-01-01

    BACKGROUND Infectious mononucleosis is a clinical syndrome most commonly associated with primary Epstein-Barr virus (EBV) infection. In adults, the symptoms can often be severe and prolonged, sometimes causing serious complications. Analgesic or antipyretic drugs are normally used to relieve the symptoms. However, there is no causal treatment for the disease. CASE REPORT Two cases of adult patients with atopic predispositions developed nocturnal fever, general fatigue, pharyngitis and lymphadenopathy after an exacerbation of atopic symptoms or those of allergic rhinitis. Due to the positive results for EBV viral-capsid antigen (VCA) IgM and negative results for EBV nuclear antigen (EBNA) IgG, diagnoses of infectious mononucleosis induced by EBV were made in both cases. Although oral antibiotics or acetaminophen alone did not improve the deteriorating symptoms, including fever, headache and general fatigue, nonsteroidal anti-inflammatory drugs (NSAIDs), such as tiaramide or loxoprofen, completely improved the symptoms quickly after the initiation. CONCLUSIONS In these cases, given the atopic predispositions of the patients, an enhanced immunological response was likely to be mainly responsible for the pathogenesis of the symptoms. In such cases, NSAIDs, that are known to reduce the activity of EBV, may dramatically improve the deteriorating symptoms quickly after the initiation. In the present cases, the immunosuppressive property of these drugs was considered to suppress the activity of lymphocytes and thus provide the rapid and persistent remission of the disease. PMID:26874639

  7. QuickFF: A program for a quick and easy derivation of force fields for metal-organic frameworks from ab initio input.

    PubMed

    Vanduyfhuys, Louis; Vandenbrande, Steven; Verstraelen, Toon; Schmid, Rochus; Waroquier, Michel; Van Speybroeck, Veronique

    2015-05-15

    QuickFF is a software package to derive accurate force fields for isolated and complex molecular systems in a quick and easy manner. Apart from its general applicability, the program has been designed to generate force fields for metal-organic frameworks in an automated fashion. The force field parameters for the covalent interaction are derived from ab initio data. The mathematical expression of the covalent energy is kept simple to ensure robustness and to avoid fitting deficiencies as much as possible. The user needs to produce an equilibrium structure and a Hessian matrix for one or more building units. Afterward, a force field is generated for the system using a three-step method implemented in QuickFF. The first two steps of the methodology are designed to minimize correlations among the force field parameters. In the last step, the parameters are refined by imposing the force field parameters to reproduce the ab initio Hessian matrix in Cartesian coordinate space as accurate as possible. The method is applied on a set of 1000 organic molecules to show the easiness of the software protocol. To illustrate its application to metal-organic frameworks (MOFs), QuickFF is used to determine force fields for MIL-53(Al) and MOF-5. For both materials, accurate force fields were already generated in literature but they requested a lot of manual interventions. QuickFF is a tool that can easily be used by anyone with a basic knowledge of performing ab initio calculations. As a result, accurate force fields are generated with minimal effort. © 2015 Wiley Periodicals, Inc. PMID:25740170

  8. Technical Support Document: 50% Energy Savings for Quick-Service Restaurants

    SciTech Connect

    Zhang, Jian; Schrock, D. W.; Fisher, D. R.; Livchak, A.; Zabrowski, D. A.; Athalye, Rahul A.; Liu, Bing

    2010-09-30

    Document describing PNNL's project to develop a package of energy efficiency measures that demonstrate the feasibility of achieving a 50% energy savings for quick-service restaurants with a simple payback of 5 years or less.

  9. Information Regarding the OraQuick In-Home HIV Test

    MedlinePLUS

    ... test? Information on the OraQuick In-Home HIV Test can be found on FDA’s website . Additionally, information can be obtained from the manufacturer, OraSure Technologies. back to top More in Premarket Approvals (PMAs) ...

  10. Health Implications of Adults' Eating at and Living near Fast Food or Quick Service Restaurants

    PubMed Central

    Jiao, J; Moudon, A V; Kim, S Y; Hurvitz, P M; Drewnowski, A

    2015-01-01

    Background: This paper examined whether the reported health impacts of frequent eating at a fast food or quick service restaurant on health were related to having such a restaurant near home. Methods: Logistic regressions estimated associations between frequent fast food or quick service restaurant use and health status, being overweight or obese, having a cardiovascular disease or diabetes, as binary health outcomes. In all, 2001 participants in the 2008–2009 Seattle Obesity Study survey were included in the analyses. Results: Results showed eating ⩾2 times a week at a fast food or quick service restaurant was associated with perceived poor health status, overweight and obese. However, living close to such restaurants was not related to negative health outcomes. Conclusions: Frequent eating at a fast food or quick service restaurant was associated with perceived poor health status and higher body mass index, but living close to such facilities was not. PMID:26192449

  11. 78 FR 48464 - Comment request for Information Collection for Quick Turnaround Surveys of All Statutes and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... agencies, local workforce boards, American Job Centers, employment service offices, or other entities... whether the proposed collection of information is necessary for the proper performance of the functions of... Employment and Training Administration Comment request for Information Collection for Quick...

  12. QuickStats: Percentage of Adult Day Services Center Participants, by Selected Diagnoses

    MedlinePLUS

    ... MMWR ) MMWR Share Compartir QuickStats: Percentage of Adult Day Services Center Participants,* by Selected Diagnoses † — National Study ... which is the estimated number of enrolled adult day services center participants in the United States on ...

  13. Development of a bone-fixation prosthetic attachment. [with quick-disconnect coupling

    NASA Technical Reports Server (NTRS)

    Owens, L. J.

    1975-01-01

    An artificial limb attached directly to the bone by a quick-disconnect coupling was tested in-place at a California medical rehabilitation center. Its design concept and development, made possible by multiple spinoffs of aerospace technology, are discussed.

  14. A new version of the NeQuick ionosphere electron density model

    NASA Astrophysics Data System (ADS)

    Nava, B.; Cosson, P.; Radicella, S. M.

    2008-12-01

    NeQuick is a three-dimensional and time dependent ionospheric electron density model developed at the Aeronomy and Radiopropagation Laboratory of the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy and at the Institute for Geophysics, Astrophysics and Meteorology of the University of Graz, Austria. It is a quick-run model particularly tailored for trans-ionospheric applications that allows one to calculate the electron concentration at any given location in the ionosphere and thus the total electron content (TEC) along any ground-to-satellite ray-path by means of numerical integration. Taking advantage of the increasing amount of available data, the model formulation is continuously updated to improve NeQuick capabilities to provide representations of the ionosphere at global scales. Recently, major changes have been introduced in the model topside formulation and important modifications have also been introduced in the bottomside description. In addition, specific revisions have been applied to the computer package associated to NeQuick in order to improve its computational efficiency. It has therefore been considered appropriate to finalize all the model developments in a new version of the NeQuick. In the present work the main features of NeQuick 2 are illustrated and some results related to validation tests are reported.

  15. Executive summary: A Quick Reference Guide for Managing Fecal Incontinence (FI).

    PubMed

    Willson, Margaret M; Angyus, Melissa; Beals, Dawn; Callan, Laurie; Francis, Kathleen; Kingan, Michael J; Porras, Opal Kathleen

    2014-01-01

    This article is an executive summary of A Quick Reference Guide for Managing Fecal Incontinence (FI), which was published September 2013 by the WOCN Society's Continence Committee. The quick reference guide provides an overview of fecal incontinence and how it is commonly managed. The information has been compiled so that nurses can quickly access a wide array of information in a single resource to facilitate patient care and patient/staff education. The topics include a definition of FI, epidemiologic data, psychosocial impact, costs, a brief description of bowel physiology, causes of FI, skin complications, assessment, management, patient education, and recommendations for future research. The complete quick reference guide also includes 5 appendices. The appendices provide additional information about predisposing factors for FI, assessment tools, medications and foods that affect gastric or colonic motility, and examples of FI management systems/collectors. The complete quick reference guide is available in the Members-Only library at the WOCN Society's Web site (http://www.wocn.org), and it can also be purchased from the online bookstore at the Society's Web site. This article provides a synopsis of the key features contained in the complete quick reference guide. PMID:24378693

  16. Quick Statistics

    MedlinePLUS

    ... Policies Free Publications U.S. Department of Health and Human Services National Institutes of Health USA.gov—Government Made Easy NIH… Turning Discovery Into Health ® National Institute on Deafness and Other Communication Disorders 31 Center Drive, MSC 2320, Bethesda, MD ...

  17. Quick Work

    ERIC Educational Resources Information Center

    Twomey, Matt

    2007-01-01

    In summer 2005, with two-and-a-half months to convert a nursing home to a 256-bed college residence hall, Philadelphia Biblical University established a fast-track construction schedule. By finishing the project in time for it to house students that fall, the university was able to avoid the high cost of renting accommodations for students.

  18. Quick Facts

    Cancer.gov

    The Cancer Genome Atlas (TCGA) is a comprehensive, collaborative effort led by the National Institutes of Health (NIH) to map the genomic changes associated with specific types of tumors to improve the prevention, diagnosis and treatment of cancer. Its mission is to accelerate the understanding of the molecular basis of cancer through the application of genome analysis and characterization technologies.

  19. Quick Statistics

    MedlinePLUS

    ... movements of one or more muscles of the larynx (voice box), can affect anyone. The first signs ... disease consisting of tumors that grow inside the larynx, vocal folds, or the air passages leading from ...

  20. Quick Statistics

    MedlinePLUS

    ... population, or about 25 million Americans, has experienced tinnitus lasting at least five minutes in the past ... by NIDCD Epidemiology and Statistics Program staff: (1) tinnitus prevalence was obtained from the 2008 National Health ...

  1. Brief Pictorial Description of New Mobile Technologies Used in Cultural Institutions in Japan

    ERIC Educational Resources Information Center

    Awano, Yumi

    2007-01-01

    Many Japanese museums and other cultural institutions have been exploring ways to enrich visitors' experiences using new digital devices. This paper briefly describes some examples in Japan, ranging from a PDA, a mobile phone, podcasting, and an audio guide speaker-equipped vest to a Quick Response (QR) code on a brochure for downloading a short

  2. Brief Pictorial Description of New Mobile Technologies Used in Cultural Institutions in Japan

    ERIC Educational Resources Information Center

    Awano, Yumi

    2007-01-01

    Many Japanese museums and other cultural institutions have been exploring ways to enrich visitors' experiences using new digital devices. This paper briefly describes some examples in Japan, ranging from a PDA, a mobile phone, podcasting, and an audio guide speaker-equipped vest to a Quick Response (QR) code on a brochure for downloading a short…

  3. The Effectiveness of Using Procedural Scaffoldings in a Paper-Plus-Smartphone Collaborative Learning Context

    ERIC Educational Resources Information Center

    Huang, Hui-Wen; Wu, Chih-Wei; Chen, Nian-Shing

    2012-01-01

    The purpose of this study was to evaluate the effectiveness of using procedural scaffoldings in fostering students' group discourse levels and learning outcomes in a paper-plus-smartphone collaborative learning context. All participants used built-in camera smartphones to learn new knowledge by scanning Quick Response (QR) codes, a type of

  4. Reliability and Validity of the Executive Interview (EXIT) and Quick EXIT among Community Dwelling Older Adults

    PubMed Central

    Campbell, Grace B.; Whyte, Ellen M.; Sereika, Susan M.; Dew, Mary Amanda; Reynolds, Charles F.; Butters, Meryl A.

    2014-01-01

    Objectives To investigate the psychometric properties of the Executive Interview (EXIT) and Quick EXIT in community dwelling older adults. Design Secondary analysis of data obtained as part of a longitudinal study of cognitive function in late life depression. Setting: A university hospital. Participants Community dwelling adults (n=422), aged 59 years and older, with current or recent history of non-psychotic unipolar major depression, and never-depressed comparison subjects. Measurements The EXIT and other measures of executive control functions (ECF), non-executive cognitive domains and global cognitive function. We calculated Quick EXIT scores from the EXIT. Results The EXIT demonstrated high inter-rater reliability (Intraclass correlation coefficient = .978, F(7, 21) = 174.85, p < .001), while both the EXIT and Quick EXIT demonstrated moderate internal consistency (?= 0.66 and ? = 0.68, respectively). Both tests also demonstrated acceptable convergent validity against several standard tests of ECF (rs ?.399 to .322, except for the Trail Making Test B, where rs was .057 to .063) as well as against measures of multifactorial cognitive function (rs ?.432 to .491). However, both tests demonstrated inconsistent discriminant validity against a variety of standard non-ECF tests (rs ?.013 to .376). Conclusions Both the EXIT and the Quick EXIT have adequate reliability and appear to require ECF in this population. However, both the EXIT and the Quick EXIT also reflect non-ECF domains. The EXIT and Quick EXIT should be considered to be measures of global cognitive function rather than pure ECF measures. Given similar reliability and validity, the Quick EXIT should be preferred clinically as it is briefer and less burdensome than the full EXIT. PMID:24119860

  5. Development and validation of a quick easily used biochemical assay for evaluating the viability of small immobile arthropods.

    PubMed

    Phillips, Craig B; Iline, Ilia I; Richards, Nicola K; Novoselov, Max; McNeill, Mark R

    2013-10-01

    Quickly, accurately, and easily assessing the efficacy of treatments to control sessile arthropods (e.g., scale insects) and stationary immature life stages (e.g., eggs and pupae) is problematic because it is difficult to tell whether treated organisms are alive or dead. Current approaches usually involve either maintaining organisms in the laboratory to observe them for development, gauging their response to physical stimulation, or assessing morphological characters such as turgidity and color. These can be slow, technically difficult, or subjective, and the validity of methods other than laboratory rearing has seldom been tested. Here, we describe development and validation of a quick easily used biochemical colorimetric assay for measuring the viability of arthropods that is sufficiently sensitive to test even very small organisms such as white fly eggs. The assay was adapted from a technique for staining the enzyme hexokinase to signal the presence of adenosine triphosphate in viable specimens by reducing a tetrazolium salt to formazan. Basic laboratory facilities and skills are required for production of the stain, but no specialist equipment, expertise, or facilities are needed for its use. PMID:24224241

  6. Relative radiometric correction of QuickBird imagery using the side-slither technique on-orbit.

    SciTech Connect

    Henderson, B. G.; Krause, Keith S.

    2004-01-01

    The QuickBird commercial imaging satellite is a pushbroom system with four multispectral bands covering the visible through near-infrared region of the spectrum and a panchromatic band. 6972 detectors in each MS band and 27888 detectors in the pan band must be calibrated. In an ideal sensor, a uniform radiance target will produce a uniform image. Unfortunately, raw imagery generated from a pushbroom sensor contains vertical streaks caused by variability in detector response, variability in electronic gain and offset, lens falloff, and particulate contamination on the focal plane. Relative radiometric correction is necessary to account for the detector-to-detector non-uniformity seen in raw imagery. A relative gain is calculated for each detector while looking at a uniform target such as an integrating sphere during ground calibrations, diffuser panel, or large desert target on-orbit. A special maneuver developed for QuickBird called the 'Side-Slither' technique is discussed. This technique improves the statistics of a desert target and achieves superior non-uniformity correction in imagery. The 'Side-Slither' technique is compared to standard techniques for calculation of relative gain and shows a reduction in the streaking seen in imagery.

  7. Fermentation and costs of fuel ethanol from corn with Quick-Germ process.

    PubMed

    Taylor, F; Mcaloon, A J; Craig, J C; Yang, P; Wahjudi, J; Eckhoff, S R

    2001-04-01

    The Quick-Germ process developed at the University of Illinois at Urbana-Champaign is a way to obtain corn oil, but with lower capital costs than the traditional wet-milling process. Quick-Germ has the potential to increase the coproduct credits and profitability of the existing dry-grind fuel ethanol process, but the fermentability of the corn remaining after oil recovery has not been tested. Therefore, a series of pilot scale (50 L) fermentations was carefully controlled and monitored with unique methods for standard inoculation and automatic sampling. It was found that the concentration of suspended solids was significantly reduced in the Quick-Germ fermentations. When compared at the same concentration of fermentable sugars, the fermentation rate and yield were not statistically different from controls. When Quick-Germ was integrated into a state-of-the-art dry-grind fuel ethanol process, computer simulation and cost models indicated savings of approx $0.01/L of ethanol ($0.04/gal) with the Quick-Germ process. Additional savings associated with the lower suspended solids could not be quantified and were not included. However, the savings are sensitive to the price of corn oil. PMID:11393355

  8. Using 10AFC to further improve the efficiency of the quick CSF method

    PubMed Central

    Hou, Fang; Lesmes, Luis; Bex, Peter; Dorr, Michael; Lu, Zhong-Lin

    2015-01-01

    The contrast sensitivity function (CSF) provides a fundamental characterization of spatial vision, important for basic and clinical applications, but its long testing times have prevented easy, widespread assessment. The original quick CSF method was developed using a two-alternative forced choice (2AFC) grating orientation identification task (Lesmes, Lu, Baek, & Albright, 2010), and obtained precise CSF assessments while reducing the testing burden to only 50 trials. In this study, we attempt to further improve the efficiency of the quick CSF method by exploiting the properties of psychometric functions in multiple-alternative forced choice (m-AFC) tasks. A simulation study evaluated the effect of the number of alternatives m on the efficiency of the sensitivity measurement by the quick CSF method, and a psychophysical study validated the quick CS method in a 10AFC task. We found that increasing the number of alternatives of the forced-choice task greatly improved the efficiency of CSF assessment in both simulation and psychophysical studies. The quick CSF method based on a 10-letter identification task can assess the CSF with an averaged standard deviation of 0.10 decimal log unit in less than 2 minutes. PMID:26161631

  9. Ionospheric correction based on ingestion of global ionospheric maps into the NeQuick 2 model.

    PubMed

    Yu, Xiao; She, Chengli; Zhen, Weimin; Bruno, Nava; Liu, Dun; Yue, Xinan; Ou, Ming; Xu, Jisheng

    2015-01-01

    The global ionospheric maps (GIMs), generated by Jet Propulsion Laboratory (JPL) and Center for Orbit Determination in Europe (CODE) during a period over 13 years, have been adopted as the primary source of data to provide global ionospheric correction for possible single frequency positioning applications. The investigation aims to assess the performance of new NeQuick model, NeQuick 2, in predicting global total electron content (TEC) through ingesting the GIMs data from the previous day(s). The results show good performance of the GIMs-driven-NeQuick model with average 86% of vertical TEC error less than 10 TECU, when the global daily effective ionization indices (Az) versus modified dip latitude (MODIP) are constructed as a second order polynomial. The performance of GIMs-driven-NeQuick model presents variability with solar activity and behaves better during low solar activity years. The accuracy of TEC prediction can be improved further through performing a four-coefficient function expression of Az versus MODIP. As more measurements from earlier days are involved in the Az optimization procedure, the accuracy may decrease. The results also reveal that more efforts are needed to improve the NeQuick 2 model capabilities to represent the ionosphere in the equatorial and high-latitude regions. PMID:25815369

  10. Ionospheric Correction Based on Ingestion of Global Ionospheric Maps into the NeQuick 2 Model

    PubMed Central

    Yu, Xiao; She, Chengli; Zhen, Weimin; Bruno, Nava; Liu, Dun; Yue, Xinan; Ou, Ming; Xu, Jisheng

    2015-01-01

    The global ionospheric maps (GIMs), generated by Jet Propulsion Laboratory (JPL) and Center for Orbit Determination in Europe (CODE) during a period over 13 years, have been adopted as the primary source of data to provide global ionospheric correction for possible single frequency positioning applications. The investigation aims to assess the performance of new NeQuick model, NeQuick 2, in predicting global total electron content (TEC) through ingesting the GIMs data from the previous day(s). The results show good performance of the GIMs-driven-NeQuick model with average 86% of vertical TEC error less than 10 TECU, when the global daily effective ionization indices (Az) versus modified dip latitude (MODIP) are constructed as a second order polynomial. The performance of GIMs-driven-NeQuick model presents variability with solar activity and behaves better during low solar activity years. The accuracy of TEC prediction can be improved further through performing a four-coefficient function expression of Az versus MODIP. As more measurements from earlier days are involved in the Az optimization procedure, the accuracy may decrease. The results also reveal that more efforts are needed to improve the NeQuick 2 model capabilities to represent the ionosphere in the equatorial and high-latitude regions. PMID:25815369

  11. Quick-MESS: A Fast Statistical Tool for Exoplanet Imaging Surveys

    NASA Astrophysics Data System (ADS)

    Bonavita, M.; de Mooij, E. J. W.; Jayawardhana, R.

    2013-07-01

    Several tools have been developed in the past few years for the statistical analysis of the exoplanet search surveys, mostly using a combination of Monte Carlo simulations or a Bayesian approach. Here we present Quick-MESS, a grid-based, non-Monte Carlo tool aimed to perform statistical analyses on results from direct imaging surveys, as well as help with the planning of these surveys. Quick-MESS uses the (expected) contrast curves for direct imaging surveys to assess for each target the probability that a planet of a given mass and semimajor axis can be detected. By using a grid-based approach, Quick-MESS is typically more than an order of magnitude faster than tools based on Monte Carlo sampling of the planet distribution. In addition, Quick-MESS is extremely flexible, enabling the study of a large range of parameter space for the mass and semimajor axes distributions without the need of resimulating the planet distribution. In order to show examples of the capabilities of Quick-MESS, we present the analysis of the Gemini Deep Planet Survey and the predictions for upcoming surveys with extreme-AO instruments.

  12. Titanium casting using commercial phosphate-bonded investments with quick heating method.

    PubMed

    Yan, Min; Takahashi, Hidekazu

    2006-06-01

    The purpose of this study was to investigate the possible use of quick heating method for titanium casting using two commercial investments (Rematitan Plus and Tancovest). The resulting characteristics of the investments with the quick heating method were as follows: residual thermal expansion at the casting temperature was in the range of 0.39 to 0.64%; green strength and fired strength ranged from 4.4 to 10.3 MPa and from 13.8 to 17.6 MPa, respectively. Five full crown titanium castings from each casting condition were obtained using an argon arc melting and gas pressure casting machine. The thickness of cast surface reaction layer was approximately 200 microm, regardless of heating methods or investments. Further, the heating method did not significantly influence either the accuracy or surface roughness of the titanium castings. These results therefore suggested that these commercial investments for titanium could be used for the quick heating method. PMID:16916246

  13. QuickSite{sup SM}, the Argonne expedited site characterization methodology,

    SciTech Connect

    Burton, J.C.; Meyer, W.T.

    1997-09-01

    Expedited site characterization (ESC), developed by Argonne National Laboratory, is an interactive, integrated process emphasizing the use of existing data of sufficient quality, multiple complementary characterization methods, and on-site decision making to optimize site investigations. The Argonne ESC is the basis for the provisional ESC standard of the ASTM (American Society for Testing and Materials). QuickSite{sup SM} is the implementation package developed by Argonne to facilitate ESC of sites contaminated with hazardous wastes. At various sites, Argonne has successfully implemented QuickSite{sup SM} and demonstrated the technical superiority of the ESC process over traditional methodologies guided by statistics and random-sampling approaches. For example, in a QuickSite{sup SM} characterization of a perched aquifer at the Pantex Plant in Texas, past data and geochemical analyses of existing wells were used to develop a model for recharge and contaminant movement. With the model as a guide, closure was achieved with minimal field work.

  14. Quick AS NEXAFS Tool (QANT): a program for NEXAFS loading and analysis developed at the Australian Synchrotron.

    PubMed

    Gann, Eliot; McNeill, Christopher R; Tadich, Anton; Cowie, Bruce C C; Thomsen, Lars

    2016-01-01

    An analysis program for near-edge X-ray absorption fine-structure (NEXAFS) spectra has been developed and implemented at the soft X-ray beamline of the Australian Synchrotron. The program allows for instant viewing of corrected data channels including normalizations to a standard, double normalizations when the standard itself has an undesired spectral response, and background subtraction. The program performs simple compositional analysis and peak fitting and includes rapid common calculations such as the average tilt angle of molecules with respect to the surface, and the determination of the complex index of refraction, which previously required intensive manual analysis. These functionalities make common manipulations carried out with NEXAFS data quick and straightforward as spectra are collected, greatly increasing the efficiency and overall throughput of NEXAFS experiments. PMID:26698087

  15. Software support: Pre-empting the quick question. [User's support group at Fermilab

    SciTech Connect

    Loebel, L.

    1987-09-01

    High energy physicists, researchers and graduate students, from universities all around the world come to Fermi National Accelerator Laboratory to do their experiments. They use our computer facilities to perform all phases of their data-analysis and presentation. We have a large turnover of users and a rather small support group, in a multi-vendor environment. We strive to make our users self-sufficient through the use of well-publicized maintenance procedures, documentation systems, and product support standards. By these pre-emptive measures we attempt to have quick answers at hand for the truly quick questions, leaving us time for the interesting problems.

  16. Shear Wave Velocity Imaging over Quick Clays Using Multiple Seismic Methods

    NASA Astrophysics Data System (ADS)

    Comina, C.; Krawczyk, C. M.; Polom, U.; Socco, L. V.

    2014-12-01

    Quick-clays are characterized by an highly unstable particle structure. This structure is usually caused by freshwater leaching of the original high salinity pore water generated by the former marine deposition environment. Given this instability, the clay structure can easily collapse leading to landslides of varying destructiveness. It is, therefore, of major importance to detect the presence of quick-clays. While resistivity based methodologies are commonly used to detect them (lower conductivity of the leached interstitial fluid in respect to the original one) there are also some evidences that leaching can result in a reduction of the undisturbed shear strength of these clays. Multiple integrated shear wave velocity based seismic methods (mainly SH seismic reflection and Love wave dispersion data) have been therefore applied in a case study to evaluate the potential of shear wave velocity imaging for detecting quick clays. An area near the Göta River in southwest Sweden, which was the scene of a quick clay landslide about 40 years ago, was chosen as experimental site. High-resolution SH reflection data were acquired in the area, as part of a joint project studying clay-related landslides. Seismic reflection processing has evidenced several geologically interesting interfaces related to the presence of quick clays (locally confirmed by boreholes), and sand-gravelly layers strongly contributing to water circulation within them. Dispersion data have been extracted along one of the reflection arrays with a Gaussian windowing approach, and data have been inverted with a Laterally Constrained Inversion using a priori information coming from the seismic reflection imaging. The inversion of dispersion curves has evidenced, in some portion of the seismic line, the presence of a low velocity layer most probably correlatable with quick clays. Even given the limited dispersion information extracted from the dataset, and the not yet completely understood shear wave velocity properties of quick clays, our work has evidenced the potential of the proposed approach for a more comprehensive imaging of the shear wave velocity distribution. This could be a valuable approach in quick clay identification in general.

  17. A quick precision analysis for LAGEOS SLR global normal point data in 1999

    NASA Astrophysics Data System (ADS)

    Zhu, Yuanlan; Feng, Chugang

    A quick precision analysis for LAGEOS SLR global data in 1999 of more than forty stations is introduced in detail, including the method of quick processing, the analysis of SLR global data, the mechanics models of orbit determination and so on. An accurate analysis of observational precision and systematic error, range bias and time bias for each SLR station are also reported. The overall RMS of fitting SLR global data to LAGEOS orbits in three days arc is generally about 1 cm, which corresponds to that of CSR Texas University at Austin.

  18. Nonsteroidal Anti-Inflammatory Drugs Quickly Resolve Symptoms Associated with EBV-Induced Infectious Mononucleosis in Patients with Atopic Predispositions

    PubMed Central

    Kazama, Itsuro; Miura, Chieko; Nakajima, Toshiyuki

    2016-01-01

    Case series Patient: Female, 24 • Male, 35 Final Diagnosis: EBV-induced infectious mononucleosis Symptoms: Fever • general malaise • lymphadenopathy Medication: — Clinical Procedure: Physical examination and serological testing Specialty: Infectious diseases Objective: Rare co-existance of disease or pathology Background: Infectious mononucleosis is a clinical syndrome most commonly associated with primary Epstein-Barr virus (EBV) infection. In adults, the symptoms can often be severe and prolonged, sometimes causing serious complications. Analgesic or antipyretic drugs are normally used to relieve the symptoms. However, there is no causal treatment for the disease. Case Report: Two cases of adult patients with atopic predispositions developed nocturnal fever, general fatigue, pharyngitis and lymphadenopathy after an exacerbation of atopic symptoms or those of allergic rhinitis. Due to the positive results for EBV viral-capsid antigen (VCA) IgM and negative results for EBV nuclear antigen (EBNA) IgG, diagnoses of infectious mononucleosis induced by EBV were made in both cases. Although oral antibiotics or acetaminophen alone did not improve the deteriorating symptoms, including fever, headache and general fatigue, nonsteroidal anti-inflammatory drugs (NSAIDs), such as tiaramide or loxoprofen, completely improved the symptoms quickly after the initiation. Conclusions: In these cases, given the atopic predispositions of the patients, an enhanced immunological response was likely to be mainly responsible for the pathogenesis of the symptoms. In such cases, NSAIDs, that are known to reduce the activity of EBV, may dramatically improve the deteriorating symptoms quickly after the initiation. In the present cases, the immunosuppressive property of these drugs was considered to suppress the activity of lymphocytes and thus provide the rapid and persistent remission of the disease. PMID:26874639

  19. IDEA Fiscal Monitoring and Support Activities 2011-2012 Quick Reference Document

    ERIC Educational Resources Information Center

    Regional Resource Center Program, 2011

    2011-01-01

    This Quick Reference Document is being distributed by the Regional Resource Center Program ARRA/Fiscal Priority Team to provide RRCP state liaisons and other (Technical Assistance) TA providers with a summary of critical fiscal monitoring and support activities they may be involved in during calendar years 2011 and 2012. Like other documents in

  20. Implementation of Enhanced Quick-scan Technique for Time-Resolved XAFS Experiment at PLS

    NASA Astrophysics Data System (ADS)

    Sung, Nark-Eon; Kim, Min-Gyu; Choi, Sun-Hee; Lee, Jay-Min

    2007-01-01

    Quick-scan is an important technique for the time-resolved experiments to investigate structural variation in rapid chemical reactions or phase transitions under external perturbations in the material science. Our new quick-scan technique, implemented at BL3C1 of PLS, adopts PCI-bus instead of CAMAC based system which was used in the default quick-scan system. It uses a digital I/O and a counter/timer PCI board, which are connected to DCM encoder and to VFC, respectively. Since the trigger signal is originated for a fixed interval from the counter/timer board operating on 80 MHz internal clock, all channels are synchronized without dead or delay time. When the trigger interval was set as 20 ms for each data point, it took 100 seconds for each full scan at 7 keV in the range of -200 1000 eV, and the energy step sizes corresponded to 0.7 eV. Overall performances of the Quick-XAFS technique will be demonstrated through an in situ electrochemical experiment for the Li-ion battery cathode material.

  1. A quick guide to wind power forecating : state-of-the-art 2009.

    SciTech Connect

    Monteiro, C.; Keko, H.; Bessa, R.; Miranda, V.; Botterud, A.; Wang, J.; Conzelmann, G.; Decision and Information Sciences; INESC Porto

    2009-11-20

    This document contains a summary of the main findings from our full report entitled 'Wind Power Forecasting: State-of-the-Art 2009'. The aims of this document are to provide guidelines and a quick overview of the current state-of-the-art in wind power forecasting (WPF) and to point out lines of research in the future development of forecasting systems.

  2. Quartz crystal microbalance contamination monitors on Skylab: A quick look analysis

    NASA Technical Reports Server (NTRS)

    Naumann, R.; Moore, W.; Nisen, D.; Russell, W.; Tashbar, P.

    1973-01-01

    Six quartz crystal microbalance contamination monitors were flown on Skylab to monitor the deposition of material from spacecraft outgassing and from the rendezvous and docking maneuvers of the Command/Service Module. This report contains a quick-look analysis of the data from these units during the unmanned and manned portions of SL2.

  3. Factorial Structure of the Quick Neurological Screening Test-Revised for Children with Learning Disabilities.

    ERIC Educational Resources Information Center

    Finlayson, Shannon B.; Obrzut, John E.

    1993-01-01

    Administered Quick Neurological Screening Test-Revised (QNST-R) to 122 elementary-aged children diagnosed with learning disabilities. QNST-R appeared to measure primarily lower order sensory perception/processing and fine and gross motoric skills, which are thought presumably to serve as basis for later higher order cognitive functions. Age, but…

  4. 46 CFR 10.239 - Quick reference table for MMC requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Quick reference table for MMC requirements. 10.239 Section 10.239 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MERCHANT MARINE OFFICERS AND SEAMEN... reference table for MMC requirements. Table 10.239 provides a guide to the requirements for...

  5. 46 CFR 10.239 - Quick reference table for MMC requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 1 2012-10-01 2012-10-01 false Quick reference table for MMC requirements. 10.239 Section 10.239 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MERCHANT MARINE OFFICERS AND SEAMEN... reference table for MMC requirements. Table 10.239 provides a guide to the requirements for...

  6. 46 CFR 10.239 - Quick reference table for MMC requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Quick reference table for MMC requirements. 10.239 Section 10.239 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MERCHANT MARINE OFFICERS AND SEAMEN... reference table for MMC requirements. Table 10.239 provides a guide to the requirements for...

  7. 46 CFR 10.239 - Quick reference table for MMC requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Quick reference table for MMC requirements. 10.239 Section 10.239 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MERCHANT MARINE OFFICERS AND SEAMEN... reference table for MMC requirements. Table 10.239 provides a guide to the requirements for...

  8. Genetic Fingerprints for Individually Quick Frozen 'Marion' Whole Berries and Puree

    Technology Transfer Automated Retrieval System (TEKTRAN)

    A forensic-type approach was proposed to identify ‘Marion’ type blackberry from Individually Quick Frozen (IQF) whole berries and puree using DNA-based simple sequence repeat (SSR) markers. This approach is useful for quality control and to detect contamination from other berry products. A reliable ...

  9. Guide to Preparing SAND Reports and other communication products : quick reference guide.

    SciTech Connect

    Not Available

    2009-10-01

    This Quick Reference Guide supplements the more complete Guide to Preparing SAND Reports and Other Communication Products. It provides limited guidance on how to prepare SAND Reports at Sandia National Laboratories. Users are directed to the in-depth guide for explanations of processes.

  10. The spot groups of abnormal magnetic structures accompanied by quickly variation and SWF flares.

    NASA Astrophysics Data System (ADS)

    Zhu, C.-L.; Zhan, G.-Q.

    The relation between the spot groups of abnormal magnetic structures accompanied with quickly variation and SWF flares occurring in the 21th solar cycle (1976.6 - 1980.12) is discussed. The results indicate that the spot groups of abnormal magnetic structures accompanied by rapid variations are important conditions causing SWF flares.

  11. Implementation of Enhanced Quick-scan Technique for Time-Resolved XAFS Experiment at PLS

    SciTech Connect

    Sung, Nark-Eon; Kim, Min-Gyu; Choi, Sun-Hee; Lee, Jay-Min

    2007-01-19

    Quick-scan is an important technique for the time-resolved experiments to investigate structural variation in rapid chemical reactions or phase transitions under external perturbations in the material science. Our new quick-scan technique, implemented at BL3C1 of PLS, adopts PCI-bus instead of CAMAC based system which was used in the default quick-scan system. It uses a digital I/O and a counter/timer PCI board, which are connected to DCM encoder and to VFC, respectively. Since the trigger signal is originated for a fixed interval from the counter/timer board operating on 80 MHz internal clock, all channels are synchronized without dead or delay time. When the trigger interval was set as 20 ms for each data point, it took {approx}100 seconds for each full scan at 7 keV in the range of -200 {approx} 1000 eV, and the energy step sizes corresponded to {approx}0.7 eV. Overall performances of the Quick-XAFS technique will be demonstrated through an in situ electrochemical experiment for the Li-ion battery cathode material.

  12. Improving the Quality of Student Experience in Large Lectures Using Quick Polls

    ERIC Educational Resources Information Center

    Calma, Angelito; Webster, Beverley; Petry, Stefan; Pesina, Jenny

    2014-01-01

    A quick polling initiative was tested in finance classes using multiple choice questions to determine whether it can improve student interaction and engagement in a large class. Students (n = 446) responded using either a smartphone app (53%) or by using pen and paper (47%). Immediate feedback was provided to students using charts that were

  13. A Clinician's Quick Guide of Evidence-Based Approaches Number 2: Depression

    ERIC Educational Resources Information Center

    Moulds, Michelle L.; Werner-Seidler, Aliza; Dalgleish, Tim

    2013-01-01

    This quick guide presents resources for clinicians on evidence-based approaches for assessing and treating depression. It also briefly describes the mood disorder module of the clinician administered Structured Clinical Interview for DSM-IV Axis I Disorders, treatment approaches, and new and emerging developments demonstrating the effectiveness of…

  14. Olive quick decline in Italy is associated with unique strain of Xylella fastidiosa

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Olive quick decline syndrome (OQDS) is a destructive new disease currently affecting approximately 20,000 acres of olive in southern Italy—an area approximately the size of California’s table olive production in California. Symptoms of OQDS include extensive branch and twig dieback, yellow and brown...

  15. Quick Screen for Voice and Supplementary Documents for Identifying Pediatric Voice Disorders

    ERIC Educational Resources Information Center

    Lee, Linda; Stemple, Joseph C.; Glaze, Leslie; Kelchner, Lisa N.

    2004-01-01

    Three documents are provided to help the speech-language pathologist (SLP) identify children with voice disorders and educate family members. The first is a quickly administered screening test that covers multiple aspects of voice, respiration, and resonance. It was tested on 3,000 children in kindergarten and first and fifth grades, and on 47…

  16. Aqua-Aura QuickDAM (QDAM) 2.0 Ops Concept

    NASA Technical Reports Server (NTRS)

    Nidhiry, John

    2015-01-01

    The presentation describes the Quick Debris Avoidance Maneuver (QDAM) 2.0 process used the Aqua and Aura flight teams to (a) reduce the work load and dependency on staff and systems; (b) reduce turn-around time and provide emergency last minute capabilities; and (c) increase burn parameter flexibility. The presentation also compares the QDAM 2.0 process to previous approaches.

  17. Quick and Easy: Use Screen Capture Software to Train and Communicate

    ERIC Educational Resources Information Center

    Schuster, Ellen

    2011-01-01

    Screen capture (screen cast) software can be used to develop short videos for training purposes. Developing videos is quick and easy. This article describes how these videos are used as tools to reinforce face-to-face and interactive TV curriculum training in a nutrition education program. Advantages of developing these videos are shared.

  18. STS-2 Induced Environment Contamination Monitor (IECM): Quick-Look Report

    NASA Technical Reports Server (NTRS)

    Miller, E. R. (Editor)

    1982-01-01

    The STS-2/induced environment contamination monitor (IECM) mission is described. The IECM system performance is discussed, and IECM mission time events are briefly described. Quick look analyses are presented for each of the 10 instruments comprising the IECM on the flight of STS-2. A short summary is presented.

  19. Asthma Patients in US Overuse Quick-Relief Inhalers, Underuse Control Medications

    MedlinePLUS

    ... and a focus for research and intervention. Asthma control is signaled by frequency of symptoms, need for quick-relief medications, and number of exacerbations requiring oral corticosteroids (among others). ... use, and indicators of control in a sample of patients representative of the ...

  20. Mapping of quick clay by electrical resistivity tomography under structural constraint

    NASA Astrophysics Data System (ADS)

    Bazin, S.; Pfaffhuber, A. A.

    2013-11-01

    Geotechnical projects usually rely on traditional sounding and drilling investigations. Drilling only provides point information and the geology needs to be interpolated between these points. Near surface geophysical methods can provide information to fill those gaps. Norwegian case studies are presented to illustrate how two-dimensional electrical resistivity tomography (ERT) can be used to accurately map the extent of quick clay deposits. Quick clay may be described as highly sensitive marine clay that changes from a relatively stiff condition to a liquid mass when disturbed. Quick clay slides present a geo-hazard and therefore layers of sensitive clay need to be mapped in detail. They are usually characterized by higher resistivity than non-sensitive clay and ERT is therefore a suitable approach to identify their occurrence. However, our experience shows that ERT cannot resolve this small resistivity contrast near large anomalies such as a bedrock interface. For this reason, a constrained inversion of ERT data was applied to delineate quick clay extent both vertically and laterally. As compared to the conventional unconstrained inversions, the constrained inversion models exhibit sharper resistivity contrasts and their resistivity values agree better with in situ measurements.

  1. WWC Quick Review of the Report "Head Start Impact Study: Final Report" Revised

    ERIC Educational Resources Information Center

    What Works Clearinghouse, 2010

    2010-01-01

    This paper presents an updated WWC (What Works Clearinghouse) Quick Review of the Report "Head Start Impact Study: Final Report". This study examined the effects of offering Head Start to 3- and 4-year-olds. Head Start is a federal program aimed at boosting the school readiness of low-income children by providing preschool education and health and…

  2. [Comparison of the quick Gram stain method to the B&M modified and favor methods].

    PubMed

    Osawa, Kayo; Kataoka, Nobumasa; Maruo, Toshio

    2011-01-01

    The Gram stain is an established method for bacterial identification, but the time needed to carry out this stain is 2-3 min. We attempted to shorten this time and stained a total of 70 clinical specimens isolated from using the Bartholomew & Mittwer (B&M) modified or Favor methods with a 3 s duration for washing and staining steps. Results were plotted and analyzed using a Hue Saturation Intensity (HSI) model. The range based on a plot of the two methods with the HSI model was presented as a reference interval. Our results indicated that 100% (35/35) of strains were Gram positive and 97.1% (34/35) were Gram negative for the quick B&M modified method. In the quick Favor method, 80.0% (28/35) were Gram positive and 68.6% (24/35) of strains were Gram negative. We propose that the quick B&M modified method is equivalent to the standard Gram staining method and is superior to the quick Favor method. PMID:22352706

  3. The Millionaire on the Beach: The Rhetoric of Get-Rich-Quick Schemes.

    ERIC Educational Resources Information Center

    Bytwerk, Randall L.; Schultze, Quentin J.

    Joe Karbo, author of "The Lazy Man's Way to Riches," has pioneered several of the techniques used in get-rich-quick schemes. A typical pitch contains: (1) claims of how easy it is to master the plan; (2) testimonials from ordinary folk, and sometimes quotations from newspapers and magazines; (3) criticisms of competing plans (some even say the

  4. Behavior Basics: Quick Behavior Analysis and Implementation of Interventions for Classroom Teachers

    ERIC Educational Resources Information Center

    Taylor, Shanon S.

    2011-01-01

    Dealing with student behavior is often cited as one of the most frustrating aspects of teaching, yet many classroom teachers receive no pre-service training in the basics of behavior management. This article describes the process of implementing a quick behavioral analysis for the purpose of designing a basic intervention. It will provide general

  5. Evaluation of early results of quick-chop phacoemulsification in the patients with high myopic cataract

    PubMed Central

    Akal, Ali; Goncu, Tugba; Cakmak, Sevin Soker; Yuvaci, Isa; Atas, Mustafa; Demircan, Süleyman; Yilmaz, Omer Faruk

    2014-01-01

    AIM To assess the early surgical outcomes of quick-chop phacoemulsification technique in patients with high myopia. METHODS The data of patients with high myopia who underwent quick-chop phacoemulsification were reviewed retrospectively. There were 42 eyes of 31 patients. The axial length was more than 26 mm in all eyes. All eyes underwent quick-chop phacoemulsification surgery with the placement of an intraocular lens (IOL) in the capsular bag. Postoperative visits were performed at 1, 3d; 2wk, 1mo. Early postoperative best corrected visual acuity (BCVA), preoperative and postoperative corneal endothelial cell density (ECD), central corneal thickness (CCT) and postoperative complications were assessed. Paired sample t-test or Wilcoxon tests were used to compare data between preoperative and postoperative data. RESULTS There was no statistically significant difference between preoperative and postoperative ECD and CCT. Retinal detachment was developed in one eye at postoperative first day. There was an iris prolapsus from side port insicion. CONCLUSION Quick-chop phacoemulsification technique is a safe surgical technique. However we can encounter some complications in high myopic eyes due to histopathological differences. Both side port and clear corneal tunnel insicion size is crucial for preventing postoperative complications. If any persistent leakage is noticed, suture should be placed. PMID:25349801

  6. Comparison of QuickBird and SPOT 5 Satellite Imagery for Mapping Giant Reed

    Technology Transfer Automated Retrieval System (TEKTRAN)

    QuickBird (2.4 m resolution) and SPOT 5 (10 m resolution) multi-spectral satellite imagery were compared for mapping the invasive grass, giant reed (Arundo donax L.), along the Rio Grande in southwest Texas. The imagery had three bands (green, red, and near-infrared). Three subsets from both the Q...

  7. Quick-look assessments to identify optimal CO2 EOR storage sites

    NASA Astrophysics Data System (ADS)

    Nez-Lpez, Vanessa; Holtz, Mark H.; Wood, Derek J.; Ambrose, William A.; Hovorka, Susan D.

    2008-06-01

    A newly developed, multistage quick-look methodology allows for the efficient screening of an unmanageably large number of reservoirs to generate a workable set of sites that closely match the requirements for optimal CO2 enhanced oil recovery (EOR) storage. The objective of the study is to quickly identify miscible CO2 EOR candidates in areas that contain thousands of reservoirs and to estimate additional oil recovery and sequestration capacities of selected top options through dimensionless modeling and reservoir characterization. Quick-look assessments indicate that the CO2 EOR resource potential along the US Gulf Coast is 4.7 billion barrels, and CO2 sequestration capacity is 2.6 billion metric tons. In the first stage, oil reservoirs are screened and ranked in terms of technical and practical feasibility for miscible CO2 EOR. The second stage provides quick estimates of CO2 EOR potential and sequestration capacities. In the third stage, a dimensionless group model is applied to a selected set of sites to improve the estimates of oil recovery and storage potential using appropriate inputs for rock and fluid properties, disregarding reservoir architecture and sweep design. The fourth stage validates and refines the results by simulating flow in a model that describes the internal architecture and fluid distribution in the reservoir. The stated approach both saves time and allows more resources to be applied to the best candidate sites.

  8. Guide to preparing SAND reports and other communication products : quick reference guide.

    SciTech Connect

    Not Available

    2007-03-01

    This 'Quick Reference Guide' supplements the more complete 'Guide to Preparing SAND Reports and Other Communication Products'. It provides limited guidance on how to prepare SAND Reports at Sandia National Laboratories. Users are directed to the in-depth guide for explanations of processes.

  9. "How Science Works" and Data Logging: Eleven Quick Experiments with a Kettle

    ERIC Educational Resources Information Center

    Walker, Justin

    2010-01-01

    The benefits of using data logging to teach "how science works" are presented. Pedagogical approaches that take advantage of other school ICT are briefly described. A series of simple, quick experiments are given together with their resulting charts. Examples of the questions that arise from the charts show how the rich data lead to the refinement…

  10. 77 FR 5721 - Surety Bond Guarantee Program-Quick Bond Guarantee Application and Agreement

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-06

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION 13 CFR Part 115 RIN 3245-AG39 Surety Bond Guarantee Program--Quick Bond Guarantee Application and... implement a streamlined application process in the Prior Approval Program of the Surety Bond Guarantee...

  11. Phosphorus recovery prior to land application of biosolids using the Quick Wash process developed by USDA

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Objectives: To present the case study of a new treatment process, called quick wash, that was developed by the USDA-ARS for extraction and recovery of phosphorus from animal manure solids but research has shown the approach is equally effective to recover phosphorus from biosolids prior to applica...

  12. Effect of individual quick freezing (IQF) on Salmonella recovery and texture of shrimp

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Shrimp ranks first in United States seafood consumption and is imported frozen. The Food and Drug Administration has identified Salmonella spp. as a contaminant of this frozen import product. This research was conducted to determine the effect of various individual quick freezing protocols (time an...

  13. Summer Professional Development in Chemistry for Inservice Teachers Using OWL Quick Prep

    ERIC Educational Resources Information Center

    Powell, Cynthia B.; Pamplin, Kim L.; Blake, Robert E.; Mason, Diana S.

    2010-01-01

    Secondary teachers participating in summer professional development chemistry workshops in Texas used an online chemistry tutoring program, OWL Quick Prep (Day et al. in OWL: Online Web-based Learning, Brooks-Cole Cengage Learning, Florence, KY, 1997) as a part of the inservice training. Self-reported demographic data were used to identify factors

  14. A Clinician's Quick Guide of Evidence-Based Approaches Number 2: Depression

    ERIC Educational Resources Information Center

    Moulds, Michelle L.; Werner-Seidler, Aliza; Dalgleish, Tim

    2013-01-01

    This quick guide presents resources for clinicians on evidence-based approaches for assessing and treating depression. It also briefly describes the mood disorder module of the clinician administered Structured Clinical Interview for DSM-IV Axis I Disorders, treatment approaches, and new and emerging developments demonstrating the effectiveness of

  15. Verification Survey: NASFAA Survey Shows Administrative Burden Increasing for Financial Aid Offices. Quick Scan Survey Results

    ERIC Educational Resources Information Center

    National Association of Student Financial Aid Administrators (NJ1), 2009

    2009-01-01

    More than three in four college financial aid offices reported an increase in the number of cases where they must verify information on the Free Application for Federal Student Aid (FAFSA), according to the National Association of Student Financial Aid Administrators' (NASFAA's) latest Quick-Scan Survey. The increase in the number of verification…

  16. Quick and Easy: Use Screen Capture Software to Train and Communicate

    ERIC Educational Resources Information Center

    Schuster, Ellen

    2011-01-01

    Screen capture (screen cast) software can be used to develop short videos for training purposes. Developing videos is quick and easy. This article describes how these videos are used as tools to reinforce face-to-face and interactive TV curriculum training in a nutrition education program. Advantages of developing these videos are shared.…

  17. Quick Screen for Voice and Supplementary Documents for Identifying Pediatric Voice Disorders

    ERIC Educational Resources Information Center

    Lee, Linda; Stemple, Joseph C.; Glaze, Leslie; Kelchner, Lisa N.

    2004-01-01

    Three documents are provided to help the speech-language pathologist (SLP) identify children with voice disorders and educate family members. The first is a quickly administered screening test that covers multiple aspects of voice, respiration, and resonance. It was tested on 3,000 children in kindergarten and first and fifth grades, and on 47

  18. PIC. Profile of Interaction in the Classroom. A Quick Feedback of Interaction Analysis.

    ERIC Educational Resources Information Center

    Brunner, Ellen

    The Profile of Interaction in the Classroom (PIC) is a short-cut method of interaction analysis that can provide the quick feedback essential to effective supervision of instruction. And because the PIC contains a record of all the behaviors that occurred in the classroom, as well as the sequence, the data may be used to build a traditional

  19. Quick-MESS: A fast statistical tool for Exoplanet Imaging Surveys

    NASA Astrophysics Data System (ADS)

    Bonavita, Mariangela; De Mooij, Ernst; Jayawardhana, Ray; Gratton, Raffaele

    2014-01-01

    Several tools have been developed for the analysis of the results of direct imaging exoplanet surveys, mostly using a combination of Monte-Carlo simulations or a Bayesian approach. Here we present a novel approach to the statistical analysis of Direct Imaging surveys, called Quick-MESS, which allows for a much faster and flexible analysis.

  20. "How Science Works" and Data Logging: Eleven Quick Experiments with a Kettle

    ERIC Educational Resources Information Center

    Walker, Justin

    2010-01-01

    The benefits of using data logging to teach "how science works" are presented. Pedagogical approaches that take advantage of other school ICT are briefly described. A series of simple, quick experiments are given together with their resulting charts. Examples of the questions that arise from the charts show how the rich data lead to the refinement

  1. What Works Clearinghouse Quick Review: "Early College, Early Success: Early College High School Initiative Impact Study"

    ERIC Educational Resources Information Center

    What Works Clearinghouse, 2013

    2013-01-01

    The study examined in this quick review concerns whether attending Early College High Schools increased postsecondary outcomes. This study is a randomized experiment examining the impact of Early Colleges on a number of outcomes. The study had relatively low attrition rates (approximately 7% in the intervention group and 13% in the comparison

  2. Budget Cuts: Financial Aid Offices Face Budget Cuts and Increasing Workload. Quick Scan Survey Results

    ERIC Educational Resources Information Center

    National Association of Student Financial Aid Administrators (NJ1), 2010

    2010-01-01

    The majority of college financial aid offices have seen cuts to their operating budgets this year compared to the 2007-08 academic year when the recession began, according to the National Association of Student Financial Aid Administrator's latest QuickScan Survey. Sixty-two percent of financial aid offices reported operating budget cuts this year

  3. 46 CFR 153.284 - Characteristics of required quick closing valves.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Characteristics of required quick closing valves. 153.284 Section 153.284 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK... positive shutoff valve; (b) Be of the fail-closed type that closes on loss of power; (c) Be capable...

  4. Bark Beetle Impacts on Ecosystem Processes are Over Quickly and Muted Spatially

    NASA Astrophysics Data System (ADS)

    Ewers, B. E.; Norton, U.; Borkhuu, B.; Reed, D. E.; Peckham, S. D.; Biederman, J. A.; King, A.; Gochis, D. J.; Brooks, P. D.; Harpold, A. A.; Frank, J. M.; Massman, W. J.; Mackay, D. S.; Pendall, E. G.

    2013-12-01

    The recent epidemic of bark beetles across western North America has impacted conifers from low to high elevations from New Mexico to Yukon. The mechanism of mortality is clear, with both mountain pine and spruce beetles killing trees by introducing xylem occluding blue stain fungi which dramatically stops transpiration. The visual impact of this outbreak is stunning, with mortality of canopy trees over 90% in some stands. However, emerging work shows that the impact on ecosystem processes is not as dramatic. We hypothesize that increased soil water and nitrogen sets up rapid succession of plant communities, which quickly restores ecosystem processing of water, carbon and nitrogen, while spatial patchiness of mortality and belowground responses mutes the impact as spatial scale increases from stands to watersheds. In support of our hypothesis we found 1) Soil nitrogen and moisture increase within one growing season but decrease to the same as uninfested stands five years later. 2) Soil respiration is correlated with live tree basal area suggesting a large component of autotrophic respiration. 3) Once stands have more than 50% basal area mortality, seedling density increases up to five fold and total non-tree understory cover increased two fold both within five years after infestation. 4) Ecosystem scale estimates of water vapor fluxes do not decline as rapidly as overstory leaf area. 5) Stable isotopes of snow, soil and stream water suggest that increased below canopy evapotranspiration nearly compensates for reduced canopy transpiration. 6) Nested watershed data shows that precipitation variations are much more important in regulating streamflow than changes in canopies from bark beetle induced mortality. These results were tested in the Terrestrial Regional Ecosystem Exchange Simulator (TREES) model. TREES was able to predict annual changes in the carbon fluxes but had difficulty simulating soil moisture and annual water budgets likely due to inadequate abiotic water vapor flux mechanisms and an explicit understory canopy layer. Our results show that ecosystems are resilient to the bark beetle epidemic and the resulting ecosystem process change is much less dramatic than might be expected based on the visual impact.

  5. A multidisciplinary geophysical, geotechnical and hydrogeological investigation of quick-clay landslides in Sweden

    NASA Astrophysics Data System (ADS)

    Malehmir, A.; Krawczyk, C.; Polom, U.; Lundberg, E.; Adamczyk, A.; Malinowski, M.; Bastani, M.; Gurk, M.; Juhlin, C.; Persson, L.; Ismail, N.

    2012-04-01

    In Spring 2011, the Society of Exploration Geophysicists (SEG) through its Geoscientists Without Borders (GWB) program sponsored our project to study clay-related landslides in the Nordic countries. This project will study quick clay or rapid earth flow landslides in Sweden. Undisturbed quick clay resembles a water-saturated gel. When a mass of quick clay undergoes sufficient stress, it instantly turns into a flowing ooze, a process known as liquefaction. A small block of quick clay can liquefy from a stress change due to as little as a modest blow from a human hand, while a larger deposit is mainly vulnerable to greater stress changes, such as increased saturation by excess rainwater. Despite their abundance, our geophysical understanding of clay behavior in terms of both changes in the geometrical shape (clay formations) and changes in the physical properties are limited and require a better understanding. Quick clay landslides are not particularly constrained to steep slopes and have been known to slide even in low-to-moderate angle slopes. Geophysical investigations began in September 2011 over a known landslide scar near the Göta river in southwest Sweden, an area known to contain quick clays in parts of it. The investigations involved 2D and 3D P- and S-wave source and receiver surveys, geoelectrics, controlled-source and radio-magnetotellurics, ground gravity and magnetic surveys. These data in combination with existing geotechnical information and hydrogeological investigations should allow better insight into the mechanism(s) governing clay-related landslides in the Nordic countries and to provide high-resolution images of subsurface structures down to the bedrock. We will present preliminary results from the seismic investigations, including the 2D and 3D reflection and refraction surveys. The reflection seismic data show excellent quality and image the bedrock topography and internal layering above it down to about 100 m. Tomography results suggest the presence of low-velocity zones associated with some of the reflections, making the integration of the two methods interesting. A shear-wave survey also shows excellent data quality and very high resolution. It helps to image fine structures above the bedrock, as well as the bedrock topography. The level of the detail already revealed by the seismic data demonstrates that the project will be able to image fine structures associated with quick-clay landslides that are important and valuable for any site assessment.

  6. Quick Analysis Method for Estimating Debris Flow Prone Area Caused by Overflow from Landslide dam

    NASA Astrophysics Data System (ADS)

    Shimizu, T.; Uchida, T.; Yamakoshi, T.; Yoshino, K.; Kisa, H.; Ishizuka, T.; Kaji, A.

    2012-04-01

    When earthquake or torrential rainfall cause deep catastrophic landslides, landslide dams can be formed in mountainous region. If water overflows from the landslide dams, large scale debris flow can occurs and possibly causes serious disasters in the downward region. Debris flow caused by the overflow from landslide dam is possible to affect the larger area than normal debris flow and flash flood. It is important for both a decision maker and resident in the area to recognize the disaster prone area as early as possible. For that reason, it is important to establish a quick analysis method for estimating debris flow prone area caused by overflow from landslide dams under the emergency situation. This situation requires the method to have both accuracy and speed for release. Nonetheless these two factors have trade-off relationship. We recently developed the quick analysis method to estimate debris flow disaster prone area caused by overflow from landslide dams. The method including the ways of efficient survey and numerical simulation programs called QUAD-L (QUick Analysis system for Debris flow caused by Landslide dam overflow). Our quick analysis system was actually applied to show the area for evacuation against debris flow caused by overflow from landslide dam formed by the 2011 Typhoon Talas which hit mainly the central region of Japan on September 2-4th, 2011. In addition to background of this application, since May 1st, 2011, Erosion and Sediment Control (SABO) Department of the Ministry of Land, Infrastructure, Transport and Tourism, Japan (MLIT) launched a new scheme using above-mentioned quick analysis method.

  7. On-farm quick tests for estimating nitrogen in dairy manure.

    PubMed

    Van Kessel, J S; Reeves, J B

    2000-08-01

    Manure nutrient analyses performed rapidly on the farm could be useful for nutrient management programs. The objective of this experiment was to evaluate six quick tests for their accuracy in estimating total manure N or NH4+-N. The quick tests included the hydrometer, electrical conductivity meter and pen, reflectometer, Agros N Meter, and Quantofix-N-Volumeter. The hydrometer was used to estimate total N, while the remaining tests were used to estimate NH4+-N. Samples (107) were collected from dairy farms in five northeastern states. Samples were analyzed for total N and NH4+-N by traditional laboratory methods and using each of the quick tests. Manure compositions ranged from 1.4 to 38.6% dry matter (DM), 0.9 to 9.5 kg/m3 total N, and 0.3 to 4.7 kg/m3 NH4+-N. The estimated concentration of total N or NH4+-N determined by each quick test was regressed against laboratory-determined values. The hydrometer did not estimate total N accurately. The strongest relationship for estimation of NH4+-N was with the Quantofix-N-Volumeter followed by the Agros N Meter, the reflectometer, and the electrical conductivity meter and pen. When the samples were split into high (>12%) and low (< or =12%) DM groups, in all cases the r2 for the regression equation was higher for the low DM group than for the high DM group. The Agros N Meter, the reflectometer, and the conductivity meter and pen did not perform well for the high DM group. These data indicate that several quick tests are viable options for measuring NH4+-N concentrations in dairy slurries and solids. PMID:10984160

  8. Fuel fire testing of the Quick-Donning Anit-Exposure Suit (cwu-60/p Quick-Donning, Anti-Exposure Coverall). Final report

    SciTech Connect

    Kydd, G.H.; Askew, G.K.

    1983-02-01

    Three specimens of Quick-Donning Anti-Exposure Suits were tested at the Fuel Fire Test Facility in three second exposures using JP-4 jet engine fuel. One was commercial suit designated, Imperial, a chemically expanded neoprene with nylon laminates on the inner and outer surfaces; one was a nitrogen blown neoprene with a sharkskin on the outer surface; and the third was also nitrogen expanded neoprene, the outer face having a Nomex laminate. The Imperial Suit supported combustion very well and had to be extinguished. The sharkskin self-extinguished except for two suits that tended to flame, one at the crotch and one under the arm. The Nomex Clad Neoprene was little affected by the fire.

  9. Embed dynamic content in your poster.

    PubMed

    Hutchins, B Ian

    2013-01-29

    A new technology has emerged that will facilitate the presentation of dynamic or otherwise inaccessible data on posters at scientific meetings. Video, audio, or other digital files hosted on mobile-friendly sites can be linked to through a quick response (QR) code, a two-dimensional barcode that can be scanned by smartphones, which then display the content. This approach is more affordable than acquiring tablet computers for playing dynamic content and can reach many users at large conferences. This resource details how to host videos, generate QR codes, and view the associated files on mobile devices. PMID:23362241

  10. Embed dynamic content in your poster

    PubMed Central

    Hutchins, B. Ian

    2013-01-01

    A new technology has emerged that will facilitate the presentation of dynamic or otherwise inaccessible data on posters at scientific meetings. Video, audio, or other digital files hosted on mobile-friendly sites can be linked to through a quick response (QR) code, a two-dimensional barcode that can be scanned by smartphones, which then display the content. This approach is more affordable than acquiring tablet computers for playing dynamic content and can reach many users at large conferences. This resource details how to host videos, generate QR codes, and view the associated files on mobile devices. PMID:23362241

  11. Simulation Of Electron Cloud Effects On Electron Beam At ERL With Pipelined QuickPIC

    SciTech Connect

    Feng, B.; Muggli, P.; Huang, C.; Decyk, V.; Mori, W. B.; Hoffstaetter, G. H.; Katsouleas, T.

    2009-01-22

    With the successful implementation of pipelining algorithm to the QuickPIC code, the number of processors used is increased by 2 to 3 orders of magnitude, and the speed of the simulation is improved by a similar factor. The pipelined QuickPIC is used to simulate the electron cloud effect on electron beam in the Cornell Energy Recovery Linac (ERL) due to extremely small emittance and high peak currents anticipated in the machine. A tune shift is found due to electron cloud on electron beams, which is of equal magnitude to that on positron beams but in an opposite direction; however, emittance growth of the electron beam in an electron cloud is not observed for ERL parameters.

  12. A review of Iliad and Quick Medical Reference for primary care providers. Two diagnostic computer programs.

    PubMed

    Sumner, W

    1993-01-01

    Two diagnostic computer programs, Iliad (Applied Informatics Inc, Salt Lake City, Utah) and Quick Medical Reference (Camdat Corp, Pittsburgh, Pa), are commercially available. Both describe a large subset of internal medicine diseases. These programs, also called knowledge bases, have different structures and diagnostic methods and emphasize somewhat different experimental observations regarding problem solving and expert diagnostic behavior. Quick Medical Reference has more diverse reference features and emphasizes diagnostic competitors (diseases that explain similar features in a case). Iliad has better developed teaching features and emphasizes a probabilistic approach. The histories and methods of these programs place various constraints on their diagnostic capabilities, especially from a primary care perspective. Although neither program is currently likely to fill the role of an expert diagnostic consultant for a family practitioner, both have potential as unique reference and teaching tools in primary care. PMID:8252140

  13. A novel algorithm for quick and continuous tracing the change of radon concentration in environment

    NASA Astrophysics Data System (ADS)

    Tan, Yanliang; Xiao, Detao

    2011-04-01

    Several measurements of the radon concentration are performed by RAD7 in the University of South China. We find that 30-40 min is needed for RAD7 for tracing the concentration of the standard radon chamber. There are two reasons. The first is that the sufficient time of air cycle is needed for the radon concentration in internal cell of RAD7 equal to that of the environment; and the second is that the sufficient decay time is needed for the 218Po concentration in internal cell of RAD7 equal to that of the radon. We used a zeroth order approximation to describe the evolution of the environment radon concentration, and obtained a novel algorithm for quick and continuous tracing the change of radon concentration. The corrected radon concentration obtained through this method is in good agreement with the reference value. This method can be applied to develop and improve the instruments for tracing the change of radon concentration quickly.

  14. Reliability of a Test Battery Designed for Quickly and Safely Assessing Diverse Indices of Neuromuscular Function

    NASA Technical Reports Server (NTRS)

    Spiering, Barry A.; Lee, Stuart M. C.; Mulavara, Ajitkumar P.; Bentley, Jason, R.; Buxton, Roxanne E.; Lawrence, Emily L.; Sinka, Joseph; Guilliams, Mark E.; Ploutz-Snyder, Lori L.; Bloomberg, Jacob J.

    2010-01-01

    Spaceflight affects nearly every physiological system. Spaceflight-induced alterations in physiological function translate to decrements in functional performance. Purpose: To develop a test battery for quickly and safely assessing diverse indices of neuromuscular performance. I. Quickly: Battery of tests can be completed in approx.30-40 min. II. Safely: a) No eccentric muscle actions or impact forces. b) Tests present little challenge to postural stability. III. Diverse indices: a) Strength: Excellent reliability (ICC = 0.99) b) Central activation: Very good reliability (ICC = 0.87) c) Power: Excellent reliability (ICC = 0.99) d) Endurance: Total work has excellent reliability (ICC = 0.99) e) Force steadiness: Poor reliability (ICC = 0.20 - 0.60) National

  15. Towards a numerical run-out model for quick-clay slides

    NASA Astrophysics Data System (ADS)

    Issler, Dieter; L'Heureux, Jean-Sbastien; Cepeda, Jos M.; Luna, Byron Quan; Gebreslassie, Tesfahunegn A.

    2015-04-01

    Highly sensitive glacio-marine clays occur in many relatively low-lying areas near the coasts of eastern Canada, Scandinavia and northern Russia. If the load exceeds the yield stress of these clays, they quickly liquefy, with a reduction of the yield strength and the viscosity by several orders of magnitude. Leaching, fluvial erosion, earthquakes and man-made overloads, by themselves or combined, are the most frequent triggers of quick-clay slides, which are hard to predict and can attain catastrophic dimensions. The present contribution reports on two preparatory studies that were conducted with a view to creating a run-out model tailored to the characteristics of quick-clay slides. One study analyzed the connections between the morphological and geotechnical properties of more than 30 well-documented Norwegian quick-clay slides and their run-out behavior. The laboratory experiments by Locat and Demers (1988) suggest that the behavior of quick clays can be reasonably described by universal relations involving the liquidity index, plastic index, remolding energy, salinity and sensitivity. However, these tests should be repeated with Norwegian clays and analyzed in terms of a (shear-thinning) Herschel-Bulkley fluid rather than a Bingham fluid because the shear stress appears to grow in a sub-linear fashion with the shear rate. Further study is required to understand the discrepancy between the material parameters obtained in laboratory tests of material from observed slides and in back-calculations of the same slides with the simple model by Edgers & Karlsrud (1982). The second study assessed the capability of existing numerical flow models to capture the most important aspects of quick-clay slides by back-calculating three different, well documented events in Norway: Rissa (1978), Finneidfjord (1996) and Byneset (2012). The numerical codes were (i) BING, a quasi-two-dimensional visco-plastic model, (ii) DAN3D (2009 version), and (iii) MassMov2D. The latter two are quasi-three-dimensional codes with a choice of bed-friction laws. The findings of the simulations point strongly towards the need for a different modeling approach that incorporates the essential physical features of quick-clay slides. The major requirement is a realistic description of remolding. A two-layer model is needed to describe the non-sensitive topsoil that often is passively advected by the slide. In many cases, the topography is rather complex so that 3D or quasi-3D (depth-averaged) models are required for realistic modeling of flow heights and velocities. Finally, since many Norwegian quick-clay slides run-out in a fjord (and may generate a tsunami), it is also desirable to explicitly account for buoyancy and hydrodynamic drag.

  16. Evaluation of Mars Entry Reconstructured Trajectories Based on Hypothetical 'Quick-Look' Entry Navigation Data

    NASA Technical Reports Server (NTRS)

    Pastor, P. Rick; Bishop, Robert H.; Striepe, Scott A.

    2000-01-01

    A first order simulation analysis of the navigation accuracy expected from various Navigation Quick-Look data sets is performed. Here quick-look navigation data are observations obtained by hypothetical telemetried data transmitted on the fly during a Mars probe's atmospheric entry. In this simulation study, navigation data consists of 3-axis accelerometer sensor and attitude information data. Three entry vehicle guidance types are studied: I. a Maneuvering entry vehicle (as with Mars 01 guidance where angle of attack and bank angle are controlled); II. Zero angle-of-attack controlled entry vehicle (as with Mars 98); and III. Ballistic, or spin stabilized entry vehicle (as with Mars Pathfinder);. For each type, sensitivity to progressively under sampled navigation data and inclusion of sensor errors are characterized. Attempts to mitigate the reconstructed trajectory errors, including smoothing, interpolation and changing integrator characteristics are also studied.

  17. Quick application/release nut with engagement indicator (commercial application of an innovative nut design)

    NASA Technical Reports Server (NTRS)

    Wright, Jay M.

    1991-01-01

    This is an assembly which permits a fastener to be inserted or removed from either side with an indicator of fastener engagement. The nut has a plurality of segments, preferably at least three segments, which are internally threaded, spring loaded apart by an internal spring, and has detents on opposite sides which force the nut segments into operative engagement with a threaded member when pushed in and release the segments for quick insertion or removal of the fastener when moved out. When the nut is installed, end pressure on the detents presses the nut segments into operative engagement with a threaded member where continued rotation locks the structure together with the detents depressed to indicate positive locking engagement of the nut. On removal, counterclockwise rotation relieves the endwise pressure on the detents, permitting internal springs to force the detents outward, allowing the nut segments to move outward and separate to permit quick removal of the fastener.

  18. The Geo Quick Ride (GQR) Program: Providing Inexpensive and Frequent Access to Space

    NASA Technical Reports Server (NTRS)

    Caffrey, Robert; Baniszewski, John

    2004-01-01

    This paper examines piggybacking NASA, university, and industry payloads on commercial geosynchronous satellites. NASA's RSDO Office awarded Geo Quick Ride (GQR) study contracts in 1998 to spacecraft manufactures to examine the issues with flying secondary payloads. The study results were very promising. Commercial communication satellites have frequent flights and significant unused resources that could be used to fly secondary payloads. However, manifesting secondary payloads on a commercial revenue-generating satellite is a complex problem to solve. The solution requires multiple simultaneous approaches in order to be successful. There are business, economic, technical, schedule, and organizational issues to be resolved. This paper examines the Geo Quick Ride (GQR) concept, discusses the development issues, and describes how this concept solves many of these issues.

  19. Preliminary engineering study: Quick opening valve MSFC high Reynolds number wind tunnel

    NASA Technical Reports Server (NTRS)

    1983-01-01

    FluiDyne Engineering Corporation has conducted a preliminary engineering study of a quick-opening valve for the MSFC High Reynolds Number Wind Tunnel under NASA Contract NAS8-35056. The subject valve is intended to replace the Mylar diaphragm system as the flow initiation device for the tunnel. Only valves capable of opening within 0.05 sec. and providing a minimum of 11.4 square feet of flow area were considered. Also, the study focused on valves which combined the quick-opening and tight shutoff features in a single unit. A ring sleeve valve concept was chosen for refinement and pricing. Sealing for tight shutoff, ring sleeve closure release and sleeve actuation were considered. The resulting cost estimate includes the valve and requisite modifications to the facility to accommodate the valve as well as the associated design and development work.

  20. SlimQuick-Associated Hepatotoxicity Resulting in Fulminant Liver Failure and Orthotopic Liver Transplantation.

    PubMed

    Whitsett, Maureen; Marzio, Dina Halegoua-De; Rossi, Simona

    2014-07-01

    Green tea extract is a popular ingredient in herbal weight loss supplements. There have been reports of hepatotoxicity associated with the use of dietary supplements, some of these cases lead to fatal outcomes. To our knowledge, we report the first case of fulminant hepatic failure requiring orthotopic liver transplantation caused by SlimQuick (Wellnx Life Sciences, Wilmington, DE), a widely available weight loss supplement containing green tea extract. PMID:26157882

  1. Hollow Mill for Extraction of Stripped Titanium Screws: An Easy, Quick, and Safe Technique

    PubMed Central

    Gupta, Ravi; Singh, Harpreet; Singh, Amit; Garg, Sudhir

    2014-01-01

    Removal of jammed titanium screws can be difficult due to the problem of stripping of the hexagonal heads of the screws. We present a technique of extraction of stripped screws with the use of a standard 4.5 mm stainless steel hollow mill in a patient of peri-implant fracture of the radius fixed with a titanium locking plate 2 years back. The technique is quick, safe, and cost effective. PMID:25013544

  2. SlimQuick-Associated Hepatotoxicity Resulting in Fulminant Liver Failure and Orthotopic Liver Transplantation

    PubMed Central

    Whitsett, Maureen; Rossi, Simona

    2014-01-01

    Green tea extract is a popular ingredient in herbal weight loss supplements. There have been reports of hepatotoxicity associated with the use of dietary supplements, some of these cases lead to fatal outcomes. To our knowledge, we report the first case of fulminant hepatic failure requiring orthotopic liver transplantation caused by SlimQuick (Wellnx Life Sciences, Wilmington, DE), a widely available weight loss supplement containing green tea extract. PMID:26157882

  3. Web services interface for Space Weather: NeQuick 2 web and experimental TEC Calibration

    NASA Astrophysics Data System (ADS)

    Migoya Orue, Yenca O.; Nava, Bruno; Radicella, Sandro M.; Alazo Cuartas, Katy; Luigi, Ciraolo

    2013-04-01

    A web front-end has been recently developed and released to allow retrieving and plotting ionospheric parameters computed by the latest version of the model, NeQuick 2. NeQuick is a quick-run ionospheric electron density model particularly designed for trans-ionospheric propagation applications. It has been developed at the Aeronomy and Radiopropagation Laboratory (now T/ICT4D Laboratory) of the Abdus Salam International Centre for Theoretical Physics (ICTP) - Trieste, Italy with the collaboration of the Institute for Geophysics, Astrophysics and Meteorology (IGAM) of the University of Graz, Austria. To describe the electron density of the ionosphere up to the peak of the F2 layer, NeQuick uses a profile formulation which includes five semi-Epstein layers with modelled thickness parameters. Through a simple web interface users can exploit all the model features including the possibility of computing the electron density and visualizing the corresponding Total Electron Content (TEC) along any ground-to-satellite straight line ray-path. Indeed, the TEC is the ionospheric parameter retrieved from the GPS measurements. It complements the experimental data obtained with diverse kinds of sensors and can be considered a major source of ionospheric information. Since the TEC is not a direct measurement, a "de-biasing" procedure or calibration has to be applied to obtain the relevant values from the raw GPS observables. Using the observation and navigation RINEX files corresponding to a single receiver as input data, the web application allows the user to compute the slant and/or vertical TEC following the concept of the "arc-by-arc" offsets estimation. The combined use of both tools, freely available from the T/ICT4D Web site, will allow the comparison of experimentally derived slant and vertical TEC with modelled values. An online demonstration of the capabilities of the mentioned web services will be illustrated.

  4. [Use of a questionnaire for quick identification of the principal foci of urinary bilharziasis in central Ivory Coast].

    PubMed

    N'Goran, E K; Utzinger, J; Traore, M; Lengeler, C; Tanner, M

    1998-01-01

    Simple questionnaires designed for use in schools have been used to identify communities at high risk for urinary schistosomiasis in several African countries but not in the Cote d'Ivoire. The primary purpose of this study was to assess the acceptance and feasibility of the school questionnaire approach in the Cote d'Ivoire. Questionnaires were distributed to 136 schools in central Cote d'Ivoire. Responses were obtained within 6 weeks from 124 schools (91.2%). A total of 12,479 school children were interviewed. At 60 schools, reagent stick tests were performed within two weeks to detect microhematuria by trained teachers. A biomedical team was sent to 14 selected schools to check results by reagent stick testing and urine filtration. Reagent stick tests showed high specificity (97%) and moderate sensitivity (67%). A strong statistical correlation was observed between responses to two key questions concerning "blood in urine" and "having had schistosomiasis" and the results of reagent stick testing (Spearman rank correlation, p < 0.0001). Our findings are in good agreement with previous reports. Using the data obtained, we were able to accurately map the distribution of urinary schistosomiasis in the study area. Use of this questionnaire for quick identification of high risk communities for urinary schistosomiasis was recommended as a preliminary step in the planned national control program and should allow better targeted of scarce resources. PMID:10088102

  5. Relationships between versional and vergent quick phases of the involuntary version-vergence nystagmus

    PubMed Central

    Zhu, Mingxia; Hertle, Richard W.; Yang, Dongsheng

    2008-01-01

    We used ground-plane motion stimuli displayed on a computer monitor positioned below eye level to induce involuntary version-vergence nystagmus (VVN). The VVN was recorded with a search coil system. It was shown that the VVN had both vertical versional and horizontal vergence components. The VVN induced by backward motion (toward subjects) had upward versional and divergence quick phases, whereas those induced by forward motion (away from subjects) had downward and biphasic divergence-convergence quick phases. The versional and vergence components of the VVN quick phases were analyzed. A temporal dissociation of about 20 ms between version velocity peak and convergence velocity peak was revealed, which supported a modified saccade-related vergence burst neuron (SVBN) model. We suggest that the temporal dissociation may be partly because of a lower-level OKN control mechanism. Vergence peak time was dependent on version peak time. Linear relationships between vergence peak velocity and versional saccadic peak velocity were demonstrated, which was in line with the new multiplicative model. Our data support the hypothesis that the vergence system and the saccadic system can act separately, but interact with each other whenever their movements occur simultaneously. PMID:18831647

  6. Development of a quick-reaction commercial launch site at the Cape Canaveral Air Station

    NASA Astrophysics Data System (ADS)

    Schuiling, Roelof L.; O'Connor, Edward A.

    1998-01-01

    This paper provides a description of a project which will provide a launch complex for several launch vehicles and sounding rockets. A design requirement for the complex is that it be a quick-reaction facility capable of supporting a launch within as short as six hours from notification of the need to launch. The paper describes the organization of a state and federal effort to accomplish this so as to enhance the capability of the Cape Canaveral launch site to support commercial space launch activity. The study effort envisions commercial launches as the driving need, however scientific launches will also benefit from this capability and they are also addressed. Quick-reaction missions in the fields of space commerce-termed ``Business Express''-and in the fields of science-termed ``Science Express''-are identified. The Spaceport Florida Authority is undertaking the development of this launch capability. The Spaceport Florida Authority together with its past programs as well as future efforts is described, as is the proposed quick-reaction launch complex.

  7. Eruption of the magnetic flux rope in a quick decaying active region

    NASA Astrophysics Data System (ADS)

    Yang, Shangbin; Xie, Wenbin; Liu, Jihong

    2015-03-01

    An isolated and quickly decaying active region (NOAA 9729) was observed as it passed across the solar disk. There was only one CME associated with the active region, which provides a good opportunity to investigate the whole process of the CME. A filament in this active region was observed to rise rapidly before stalling and disintegrating into flare loops. The rising filament seen in EIT images separates into two parts just before eruption. A new filament reforms several hours later after the CME; the axis of this new filament is rotated clockwise approximately 22 compared with that of the first filament,due to a changed orientation of the polarity inversion line. We also observed a bright transient slightly S-shaped X-ray sigmoid, which appears immediately after the filament eruption. The X-ray sigmoid quickly develops into a soft X-ray cusp and rises before dropping back down. Two magnetic cancelation regions were observed clearly just before filament eruption. The eruption process of the sigmoid structure in this quick decaying active region could be explained by using the 3D Tether-Cutting model. The magnetic flux rope erupted as the magnetic helicity approached its maximum and the normalized helicity was -0.036 when the magnetic flux rope erupted, which is an order of magnitude smaller than the simulation results of the kink and torus instability, but is close to the predicted value of Zhang et al. (2008) based on the theoretical non-linear force-free model.

  8. Design of a Lunar Quick-Attach Mechanism to Hummer Vehicle Mounting Interface

    NASA Technical Reports Server (NTRS)

    Grismore, David A.

    2010-01-01

    This report presents my work experiences while I was an intern with NASA (National Aeronautic and Space Administration) in the Spring of2010 at the Kennedy Space Center (KSC) launch facility in Cape Canaveral, Florida as a member of the NASA USRP (Undergraduate Student Research Program) program. I worked in the Surface Systems (NE-S) group during the internship. Within NE-S, two ASRC (Arctic Slope Regional Corporation) contract engineers, A.J. Nick and Jason Schuler, had developed a "Quick-Attach" mechanism for the Chariot Rover, the next generation lunar rover. My project was to design, analyze, and possibly fabricate a mounting interface between their "Quick-Attach" and a Hummer vehicle. This interface was needed because it would increase their capabilities to test the Quick Attach and its various attachments, as they do not have access to a Chariot Rover at KSC. I utilized both Pro Engineer, a 3D CAD software package, and a Coordinate Measuring Machine (CMM) known as a FAROarm to collect data and create my design. I relied on hand calculations and the Mechanica analysis tool within Pro Engineer to perform stress analysis on the design. After finishing the design, I began working on creating professional level CAD drawings and issuing them into the KSC design database known as DDMS before the end of the internship.

  9. Development and quality evaluation of quick cooking dhal-A convenience product.

    PubMed

    Sethi, Shruti; Samuel, D V K; Khan, Islam

    2014-03-01

    Owing to rapid urbanization and more women joining the workforce, use of ready-to-eat and ready-to-use convenience foods is gaining increasing popularity. Women require dhal that cooks fast and increases in volume when cooked. In an attempt to prepare quick cooking dhal from pigeon pea, variety UPAS 120 was milled, pre-treated with sodium chloride solution (1%), flaked and dried. The quick cooking dhal was packed in three packaging materials, namely, high molecular weight high density polyethylene (HMHDPE), high density polyethylene (HDPE) and laminated pouches. The quality evaluation of the prepared flakes with respect to the cooking quality attributes, changes in proximate composition, free fatty acid (FFA) and peroxide value (PV) were carried out during storage at ambient temperature (8-36C) at regular intervals for a period of 10months. During storage, quick cooking dhal packed in laminated pouches performed better than samples stored in other pouches with respect to the changes in the overall quality and acceptability of the product. PMID:24587538

  10. Preventing distortion of quick couplers of hoses of central pipe lines--a cheap and simple method.

    PubMed

    Kamath, S K; Patil, A V

    1995-01-01

    A cheap and practical approach of steel chains attached to the station outlet quick couplers helps in maintaining the shape of the quick couplers and ensures their effective functioning over a long period of time and avoids mishap of connection due to damage of these couplers. PMID:10740701

  11. Handbook for quick cost estimates. A method for developing quick approximate estimates of costs for generic actions for nuclear power plants

    SciTech Connect

    Ball, J.R.

    1986-04-01

    This document is a supplement to a ''Handbook for Cost Estimating'' (NUREG/CR-3971) and provides specific guidance for developing ''quick'' approximate estimates of the cost of implementing generic regulatory requirements for nuclear power plants. A method is presented for relating the known construction costs for new nuclear power plants (as contained in the Energy Economic Data Base) to the cost of performing similar work, on a back-fit basis, at existing plants. Cost factors are presented to account for variations in such important cost areas as construction labor productivity, engineering and quality assurance, replacement energy, reworking of existing features, and regional variations in the cost of materials and labor. Other cost categories addressed in this handbook include those for changes in plant operating personnel and plant documents, licensee costs, NRC costs, and costs for other government agencies. Data sheets, worksheets, and appropriate cost algorithms are included to guide the user through preparation of rough estimates. A sample estimate is prepared using the method and the estimating tools provided.

  12. Kinematics of Faster Acceleration Performance of the Quick Single in Experienced Cricketers.

    PubMed

    Callaghan, Samuel J; Lockie, Robert G; Jeffriess, Matthew D; Nimphius, Sophia

    2015-09-01

    The introduction of the shorter match formats for cricket (i.e., Twenty20) requires batsmen to be proficient in sprint acceleration to increase run scoring potential. Therefore, the study aim was to identify the kinematics of faster acceleration performance of nonstriking batsmen when completing a quick single. Eighteen experienced male cricketers currently playing cricket in a regional competition in Australia completed 17.68-m sprints using a match-specific start (walking start, bat dragged through crease, leg guards worn). Timing gates recorded the 0-5 and 0-17.68 m time. Joint and step kinematics were analyzed through the first and second steps through 3-dimensional motion analysis. Subjects were split into faster and slower groups according to 0- to 5-m time, and a 1-way analysis of variance determined significant (p ? 0.05) between-group differences. Effect sizes and Pearson's correlations (r) were also calculated. The faster group was significantly quicker for the 0-5 and 0-17.68 m intervals and had a 10% longer first, and 11% longer second, step. Second step swing leg hip adduction was 23% greater in the faster group. A significant negative correlation (r = -0.647) was found between second step drive leg extension and 0- to 5-m time. Batsmen should cover the initial 5 m of a quick single in the shortest time possible to increase the likelihood of a successful run. This is aided by longer first and second steps and increased hip adduction to transition into normal sprint technique. Step length development should be a key consideration for coaches attempting to improve quick single performance. PMID:26313578

  13. Ultrastructural study of Cryptococcus neoformans by quick-freezing and deep-etching method.

    PubMed

    Sakaguchi, N; Baba, T; Fukuzawa, M; Ohno, S

    1993-03-01

    The three-dimensional ultrastructure of Cryptococcus neoformans was studied by quick-freezing and deep-etching (QF-DE) method. C. neoformans, strain CDC551, was cultured on agar. The viable yeast cells (10(7) cells) were inoculated into each mouse from the tail vein. Three weeks after the inoculation, the brains of the mice were perfused with fixatives, quickly frozen, freeze-fractured, deeply etched and rotary shadowed with platinum and carbon. In addition, the viable cells of C. neoformans on agar were picked up and quickly frozen, and replica membranes were prepared as described above. The ultrastructure of C. neoformans was three-dimensionally demonstrated by the QF-DE method. The capsule was composed of fine meshworks of microfibrils (10-13 nm in diameter), which were directly attached to the cell walls. The capsule of the in vivo yeasts (yeast cells in the brain lesion) was thicker than that of the in vitro yeasts (yeast cells on agar culture). At the outer part of the cell wall, a particle-accumulating layer was observed. This layer in vivo was thicker than that in vitro. Occasionally, the yeast cells were ingested by phagocytes in the mouse brain. Although the cytoplasm of such yeast cells was destroyed, the capsular meshworks were well preserved. The ultrastructure of the capsule was the same both in cultured and phagocytized yeasts in the cystic lesions of the brains. This lack of morphological changes of the capsular meshworks suggests that they are resistant to the digestion by phagocytes. This stability of capsular structures may provide one of the important pathogenic factors in cystic lesions by C. neoformans. PMID:8474529

  14. Multi-Scale Validation of Forest Insect Mortality Using QuickBird and Aerial Imagery

    NASA Astrophysics Data System (ADS)

    Meddens, A. J.; Hicke, J. A.; Vierling, L. A.

    2008-12-01

    Insects are major disturbances in forested ecosystems, affecting forest succession, carbon cycling, and fuel loads. Insect-caused tree mortality causes significant change in forest structure as dead trees lose their needles and eventually fall to the ground. To manage forests and establish natural resource policy, accurate estimates of the extent of insect disturbance are needed. Mountain pine beetles (Dendroctonus ponderosae Hopkins), one of the most damaging insect species, have affected large forested areas in the United States and Canada. Our goal is to map landscape-level tree mortality caused by insect outbreaks across the western United States using satellite remote sensing. Here we report on the methods we are developing and applying to an outbreak of mountain pine beetle in Colorado as well as the means of evaluating the classification using field measurements and finer spatial resolution aerial imagery. In August 2008, 36 forest inventory plots were established in an area affected by mountain pine beetle in the Arapaho National Forest in the Rocky Mountains of Colorado, USA. A digital aerial multispectral image with a spatial resolution of 30 cm and a QuickBird image with a spatial resolution of 2.4 m were acquired in the same area. We are employing a nested validation approach using the aerial imagery and QuickBird imagery to ultimately validate a Landsat-based insect disturbance detection product. Tree-level field measurements are used to evaluate classified the aerial imagery. The classified aerial imagery is subsequently used to evaluate classified QuickBird imagery, which in turn is used to evaluate the Landsat product. The outcomes of finer spatial level classification can be used to increase understanding of the coarser spatial image classification and provide means to investigate disturbance level thresholds for the detection of insect outbreaks using the coarser resolution imagery.

  15. Order of accuracy of QUICK and related convection-diffusion schemes

    NASA Technical Reports Server (NTRS)

    Leonard, B. P.

    1993-01-01

    This report attempts to correct some misunderstandings that have appeared in the literature concerning the order of accuracy of the QUICK scheme for steady-state convective modeling. Other related convection-diffusion schemes are also considered. The original one-dimensional QUICK scheme written in terms of nodal-point values of the convected variable (with a 1/8-factor multiplying the 'curvature' term) is indeed a third-order representation of the finite volume formulation of the convection operator average across the control volume, written naturally in flux-difference form. An alternative single-point upwind difference scheme (SPUDS) using node values (with a 1/6-factor) is a third-order representation of the finite difference single-point formulation; this can be written in a pseudo-flux difference form. These are both third-order convection schemes; however, the QUICK finite volume convection operator is 33 percent more accurate than the single-point implementation of SPUDS. Another finite volume scheme, writing convective fluxes in terms of cell-average values, requires a 1/6-factor for third-order accuracy. For completeness, one can also write a single-point formulation of the convective derivative in terms of cell averages, and then express this in pseudo-flux difference form; for third-order accuracy, this requires a curvature factor of 5/24. Diffusion operators are also considered in both single-point and finite volume formulations. Finite volume formulations are found to be significantly more accurate. For example, classical second-order central differencing for the second derivative is exactly twice as accurate in a finite volume formulation as it is in single-point.

  16. Benchmarking the codes VORPAL, OSIRIS, and QuickPIC with Laser Wakefield Acceleration Simulations

    SciTech Connect

    Paul, K.; Bruhwiler, D. L.; Cowan, B.; Cary, J. R.; Huang, C.; Mori, W. B.; Tsung, F. S.; Cormier-Michel, E.; Geddes, C. G. R.; Esarey, E.; Fonseca, R. A.; Martins, S. F.; Silva, L. O.

    2009-01-22

    Three-dimensional laser wakefield acceleration (LWFA) simulations have recently been performed to benchmark the commonly used particle-in-cell (PIC) codes VORPAL, OSIRIS, and QuickPIC. The simulations were run in parallel on over 100 processors, using parameters relevant to LWFA with ultra-short Ti-Sapphire laser pulses propagating in hydrogen gas. Both first-order and second-order particle shapes were employed. We present the results of this benchmarking exercise, and show that accelerating gradients from full PIC agree for all values of a{sub 0} and that full and reduced PIC agree well for values of a{sub 0} approaching 4.

  17. Benchmarking the codes VORPAL, OSIRIS, and QuickPIC with Laser Wakefield Acceleration Simulations

    SciTech Connect

    Paul, Kevin; Huang, C.; Bruhwiler, D.L.; Mori, W.B.; Tsung, F.S.; Cormier-Michel, E.; Geddes, C.G.R.; Cowan, B.; Cary, J.R.; Esarey, E.; Fonseca, R.A.; Martins, S.F.; Silva, L.O.

    2008-09-08

    Three-dimensional laser wakefield acceleration (LWFA) simulations have recently been performed to benchmark the commonly used particle-in-cell (PIC) codes VORPAL, OSIRIS, and QuickPIC. The simulations were run in parallel on over 100 processors, using parameters relevant to LWFA with ultra-short Ti-Sapphire laser pulses propagating in hydrogen gas. Both first-order and second-order particle shapes were employed. We present the results of this benchmarking exercise, and show that accelerating gradients from full PIC agree for all values of a0 and that full and reduced PIC agree well for values of a0 approaching 4.

  18. Next-generation sequencing as a tool to quickly identify causative EMS-generated mutations

    PubMed Central

    Thole, J. M.; Strader, L. C.

    2015-01-01

    The advent of next generation sequencing has influenced every aspect of biological research. Many labs are now using whole genome sequencing in Arabidopsis thaliana as a means to quickly identify EMS-generated mutations present in isolated mutants. Following identification of these mutations, examination of T-DNA insertional alleles defective in candidate genes or complementation of the mutant phenotype with a wild type copy of candidate genes can be used to verify which mutation is causative for the phenotype of interest. Here, we discuss the benefits and pitfalls of using this method to identify mutations underlying phenotypes. PMID:26039464

  19. Analytic Programming with fMRI Data: A Quick-Start Guide for Statisticians Using R

    PubMed Central

    Eloyan, Ani; Li, Shanshan; Muschelli, John; Pekar, Jim J.; Mostofsky, Stewart H.; Caffo, Brian S.

    2014-01-01

    Functional magnetic resonance imaging (fMRI) is a thriving field that plays an important role in medical imaging analysis, biological and neuroscience research and practice. This manuscript gives a didactic introduction to the statistical analysis of fMRI data using the R project, along with the relevant R code. The goal is to give statisticians who would like to pursue research in this area a quick tutorial for programming with fMRI data. References of relevant packages and papers are provided for those interested in more advanced analysis. PMID:24586801

  20. 'How science works' and data logging: eleven quick experiments with a kettle

    NASA Astrophysics Data System (ADS)

    Walker, Justin

    2010-11-01

    The benefits of using data logging to teach 'how science works' are presented. Pedagogical approaches that take advantage of other school ICT are briefly described. A series of simple, quick experiments are given together with their resulting charts. Examples of the questions that arise from the charts show how the rich data lead to the refinement of the experiments, increased confidence in the measurements and improved understanding of the physics involved. The charts themselves support pupil discussion and curiosity about the physics. The simple experiments enable familiarity with data logging hardware and software to be built up.

  1. Next-generation sequencing as a tool to quickly identify causative EMS-generated mutations.

    PubMed

    Thole, J M; Strader, L C

    2015-01-01

    The advent of next generation sequencing has influenced every aspect of biological research. Many labs are now using whole genome sequencing in Arabidopsis thaliana as a means to quickly identify EMS-generated mutations present in isolated mutants. Following identification of these mutations, examination of T-DNA insertional alleles defective in candidate genes or complementation of the mutant phenotype with a wild type copy of candidate genes can be used to verify which mutation is causative for the phenotype of interest. Here, we discuss the benefits and pitfalls of using this method to identify mutations underlying phenotypes. PMID:26039464

  2. BLAST QuickStart: example-driven web-based BLAST tutorial.

    PubMed Central

    Wheeler, David; Bhagwat, Medha

    2007-01-01

    The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between protein or nucleotide sequences. The program compares nucleotide or protein sequences to sequence in a database and calculates the statistical significance of the matches. This chapter first provides an introduction to BLAST and then describes the practical application of different BLAST programs based on the BLAST Quick Start mini-course (www.ncbi.nlm.nih.gov/Class/minicourses). In each example, emphasis is placed on practical step-by-step procedures, although relevant theory is also given where it affects the choice of BLAST program, parameters, and database. PMID:17993672

  3. A 3D DEM-LBM approach for the assessment of the quick condition for sands

    NASA Astrophysics Data System (ADS)

    Mansouri, M.; Delenne, J.-Y.; El Youssoufi, M. S.; Seridi, A.

    2009-09-01

    We present a 3D numerical model to assess the quick condition (the onset of the boiling phenomenon) in a saturated polydisperse granular material. We use the Discrete Element Method (DEM) to study the evolution of the vertical intergranular stress in a granular sample subjected to an increasing hydraulic gradient. The hydrodynamic forces on the grains of the sample are computed using the Lattice Boltzmann Method (LBM). The principal assumption used is that grains remain at rest until the boiling onset. We show that the obtained critical hydraulic gradient is close to that defined in classical soil mechanics. To cite this article: M. Mansouri et al., C. R. Mecanique 337 (2009).

  4. Quick seismic intensity map investigation and evaluation based on cloud monitoring method using smart mobile phone

    NASA Astrophysics Data System (ADS)

    Zhao, Xuefeng; Peng, Deli; Hu, Weitong; Guan, Quanhua; Yu, Yan; Li, Mingchu; Ou, Jinping

    2015-04-01

    Seismic intensity map which reflects the actual situation of destruction in a certain area after the earthquake, and it is of great significance in guiding relief work and assessing damage loss. Based on cloud monitoring method proposed, we developed software, which can quickly investigate the seismic intensity distribution and draw the intensity map after the earthquake using the big data collected by individual smart phone questionnaire in earthquake zone. According to seismic attenuation law, we generated some seismic intensity values to test our system and successfully drawn out of the seismic intensity map.

  5. HARD REAL TIME QUICK EXAFS DATA ACQUISITION WITH ALL OPEN SOURCE SOFTWARE ON A COMMODITY PERSONAL COMPUTER.

    SciTech Connect

    SO,I.; SIDDONS, D.P.; CALIEBE, W.A.; KHALID, S.

    2007-04-25

    We describe here the data acquisition subsystem of the Quick EXAFS (QEXAFS) experiment at the National Synchrotron Light Source of Brookhaven National Laboratory. For ease of future growth and flexibility, almost all software components are open source with very active maintainers. Among them, Linux running on x86 desktop computer, RTAI for real-time response, COMEDI driver for the data acquisition hardware, Qt and PyQt for graphical user interface, PyQwt for plotting, and Python for scripting. The signal (A/D) and energy-reading (IK220 encoder) devices in the PCI computer are also EPICS enabled. The control system scans the monochromator energy through a networked EPICS motor. With the real-time kernel, the system is capable of deterministic data-sampling period of tens of micro-seconds with typical timing-jitter of several micro-seconds. At the same time, Linux is running in other non-real-time processes handling the user-interface. A modern Qt-based controls-front end enhances productivity. The fast plotting and zooming of data in time or energy coordinates let the experimenters verify the quality of the data before detailed analysis. Python scripting is built-in for automation. The typical data-rate for continuous runs are around ten mega-bytes per minute.

  6. Evidence for subtle verbal fluency deficits in occasional stimulant users: quick to play loose with verbal rules.

    PubMed

    Reske, Martina; Delis, Dean C; Paulus, Martin P

    2011-03-01

    Psychostimulants like cocaine and amphetamine are commonly abused by young adults who often state that they take these drugs to increase social or cognitive performance. The current study tested the hypothesis that individuals at early stages of occasional stimulant use show subtle executive dysfunctions such as verbal fluency deficits. 155 young (age 18-25), non-dependent occasional users of stimulants and 49 stimulant nave comparison subjects performed the Delis-Kaplan Verbal Fluency test. Correlation and median split analyses were conducted to account for stimulant history and co-drug use. Compared to stimulant nave subjects, occasional stimulant users generated significantly more responses on an over-learned verbal fluency task (Category Fluency), but at the expense of increased error rates (Set Loss and Repetition Errors). These performance differences were not related to lifetime uses of stimulants or marijuana. Taken together, these results support the hypothesis that individuals who are using stimulants occasionally exhibit subtle executive dysfunctions when required to generate verbal sets under time pressure. In particular, occasional stimulant users apply quickly but inaccurately verbal rules, which may represent a mix of diminished cognitive flexibility along with increased rigidity and impulsivity. This specific executive dysfunction may help to identify individuals at risk for stimulant use or dependence. PMID:20673916

  7. Evidence for Subtle Verbal Fluency Deficits in Occasional Stimulant Users: Quick to Play Loose with Verbal Rules

    PubMed Central

    Reske, Martina; Delis, Dean C.; Paulus, Martin P.

    2010-01-01

    Psychostimulants like cocaine and amphetamine are commonly abused by young adults who often state that they take these drugs to increase social or cognitive performance. The current study tested the hypothesis that individuals at early stages of occasional stimulant use show subtle executive dysfunctions such as verbal fluency deficits. 155 young (age 18-25), non-dependent occasional users of stimulants and 49 stimulant naïve comparison subjects performed the Delis-Kaplan Verbal Fluency test. Correlation and median split analyses were conducted to account for stimulant history and co-drug use. Compared to stimulant naïve subjects, occasional stimulant users generated significantly more responses on an over-learned verbal fluency task (Category Fluency), but at the expense of increased error rates (Set Loss and Repetition Errors). These performance differences were not related to lifetime uses of stimulants or marijuana. Taken together, these results support the hypothesis that individuals who are using stimulants occasionally exhibit subtle executive dysfunctions when required to generate verbal sets under time pressure. In particular, occasional stimulant users apply quickly but inaccurately verbal rules, which may represent a mix of diminished cognitive flexibility along with increased rigidity and impulsivity. This specific executive dysfunction may help to identify individuals at risk for stimulant use or dependence. PMID:20673916

  8. Experimental program to evaluate the performance of quick-acting on/off sprinkler heads

    SciTech Connect

    Hasegawa, H.K.; Staggs, K.; Leeds, S.G.

    1986-08-01

    We evaluated the performance of new generation on/off sprinkler heads for potential use in water-sensitive areas with costly equipment, such as computer rooms and experiment control rooms, or for areas where fire-suppression water must be minimized, such as hazardous-materials holding areas. These sprinkler heads are reputed to respond quickly and shut off automatically when the fire is controlled or extinguished. We conducted a series of fire tests to analyze the ability of such quick-acting (QA) on/off sprinklers to extinguish or control fires of various strengths and fuel types; these tests were repeated with conventional sprinkler heads for comparison. Our results show that the QA on/off heads control or extinguish the gas burner and pool fires with minimal water discharge; however, when exposed to our 20-kg wood crib fire, one manufacturer's on/off sprinkler failed to operate properly in two consecutive tests. When the QA on/off heads did operate successfully, however, they discharged only 10-45% of the water needed by standard heads to control or extinguish the test fires. We are continuing to evaluate these devices to determine if they would be appropriate fire countermeasures in areas where minimal water discharge is required.

  9. Modeling Self-Ionized Plasma Wakefield Acceleration for Afterburner Parameters Using QuickPIC

    SciTech Connect

    Zhou, M.; Clayton, C.E.; Decyk, V.K.; Huang, C.; Johnson, D.K.; Joshi, C.; Lu, W.; Mori, W.B.; Tsung, F.S.; Deng, S.; Katsouleas, T.; Muggli, P.; Oz, E.; Decker, F.-J.; Iverson, R.; O'Connel, C.; Walz, D.; /SLAC

    2006-01-25

    For the parameters envisaged in possible afterburner stages[1] of a plasma wakefield accelerator (PWFA), the self-fields of the particle beam can be intense enough to tunnel ionize some neutral gases. Tunnel ionization has been investigated as a way for the beam itself to create the plasma, and the wakes generated may differ from those generated in pre-ionized plasmas[2],[3]. However, it is not practical to model the whole stage of PWFA with afterburner parameters using the models described in [2] and [3]. Here we describe the addition of a tunnel ionization package using the ADK model into QuickPIC, a highly efficient quasi-static particle in cell (PIC) code which can model a PWFA with afterburner parameters. Comparison between results from OSIRIS (a full PIC code with ionization) and from QuickPIC with the ionization package shows good agreement. Preliminary results using parameters relevant to the E164X experiment and the upcoming E167 experiment at SLAC are shown.

  10. A quick algorithm of counting flow accumulation matrix for deriving drainage networks from a DEM

    NASA Astrophysics Data System (ADS)

    Wang, Yanping; Liu, Yonghe; Xie, Hongbo; Xiang, ZhongLin

    2011-06-01

    Computerized auto-extraction of drainage networks from Digital Elevation Model (DEM) has been widely used in hydrological modeling and relevant studies. Several essential procedures need to be implemented in eight-directional(D8) watershed delineation method, among which a problem need to be resolved is the lack of a high efficiency algorithm for quick and accurate computation of flow accumulation matrix involved in river network delineations. For the problem of depression filling, the algorithm presented by Oliver Planchon has resolved it. This study was aimed to develop a simple and quick algorithm for flow accumulation matrix computations. For this purpose, a simple and high efficiency algorithm of the time complexity of O(n) compared to the commonly used code of the time complexity of O(n2) orO(nlogn) , has been developed. Performance tests on this newly developed algorithm were conducted for different size of DEMs, and the results suggested that the algorithm has a linear time complexity with increasing sizes of DEM. The computation efficiency of this newly developed algorithm is many times higher than the commonly used code, and for a DEM of size 1000*1000, flow accumulation matrix computation can be completed within only several seconds compared with about few minutes needed by common used algorithms.

  11. Aqueous sodium borohydride induced thermally stable porous zirconium oxide for quick removal of lead ions

    PubMed Central

    Nayak, Nadiya B.; Nayak, Bibhuti B.

    2016-01-01

    Aqueous sodium borohydride (NaBH4) is well known for its reducing property and well-established for the development of metal nanoparticles through reduction method. In contrary, this research paper discloses the importance of aqueous NaBH4 as a precipitating agent towards development of porous zirconium oxide. The boron species present in aqueous NaBH4 play an active role during gelation as well as phase separated out in the form of boron complex during precipitation, which helps to form boron free zirconium hydroxide [Zr(OH)4] in the as-synthesized condition. Evolved in-situ hydrogen (H2) gas-bubbles also play an important role to develop as-synthesized loose zirconium hydroxide and the presence of intra-particle voids in the loose zirconium hydroxide help to develop porous zirconium oxide during calcination process. Without any surface modification, this porous zirconium oxide quickly adsorbs almost hundred percentages of toxic lead ions from water solution within 15 minutes at normal pH condition. Adsorption kinetic models suggest that the adsorption process was surface reaction controlled chemisorption. Quick adsorption was governed by surface diffusion process and the adsorption kinetic was limited by pore diffusion. Five cycles of adsorption-desorption result suggests that the porous zirconium oxide can be reused efficiently for removal of Pb (II) ions from aqueous solution. PMID:26980545

  12. Aqueous sodium borohydride induced thermally stable porous zirconium oxide for quick removal of lead ions.

    PubMed

    Nayak, Nadiya B; Nayak, Bibhuti B

    2016-01-01

    Aqueous sodium borohydride (NaBH4) is well known for its reducing property and well-established for the development of metal nanoparticles through reduction method. In contrary, this research paper discloses the importance of aqueous NaBH4 as a precipitating agent towards development of porous zirconium oxide. The boron species present in aqueous NaBH4 play an active role during gelation as well as phase separated out in the form of boron complex during precipitation, which helps to form boron free zirconium hydroxide [Zr(OH)4] in the as-synthesized condition. Evolved in-situ hydrogen (H2) gas-bubbles also play an important role to develop as-synthesized loose zirconium hydroxide and the presence of intra-particle voids in the loose zirconium hydroxide help to develop porous zirconium oxide during calcination process. Without any surface modification, this porous zirconium oxide quickly adsorbs almost hundred percentages of toxic lead ions from water solution within 15 minutes at normal pH condition. Adsorption kinetic models suggest that the adsorption process was surface reaction controlled chemisorption. Quick adsorption was governed by surface diffusion process and the adsorption kinetic was limited by pore diffusion. Five cycles of adsorption-desorption result suggests that the porous zirconium oxide can be reused efficiently for removal of Pb (II) ions from aqueous solution. PMID:26980545

  13. Photogrammetry and geographic information systems for quick assessment, documentation and analysis of earthquakes

    NASA Astrophysics Data System (ADS)

    Altan, O.; Toz, G.; Kulur, S.; Seker, D.; Volz, S.; Fritsch, D.; Sester, M.

    After a catastrophe like an earthquake, one on the most important problems is to provide shelter and housing for the homeless. To this end, it is necessary to decide if a building is still habitable, or if it is has to be renovated or even torn down. A prerequisite for such decisions is the detailed knowledge about the status of the building. Earlier earthquakes revealed problems in the processes of documenting and analysing the building damage, as they demanded much effort in terms of time and manpower. The main difficulties appeared to be because of the analogue damage assessments which created a great variety of unstructured information that had to be put in a line to allow further analysis. Apart from that, documentation of damage effects was not detailed and could only be carried out on the spot of a disaster. The aim of this study is to make an improvement, using combination of Geographic Information Systems (GIS) as a management and data analysis tool and photogrammetry as a documentation method. Photogrammetric data acquisition is achieved using a CCD camera and the digital photogrammetric software package PICTRAN by Technet. The information system part is the GIS package ArcView by ESRI. The combination of rapid data acquisition and GIS offers a quick assessment of the situation and the possibility of its objective and holistic analysis. This is the prerequisite for a quick initiation of appropriate measures to help people.

  14. A novel algorithm for quick and continuous tracing the change of radon concentration in environment.

    PubMed

    Tan, Yanliang; Xiao, Detao

    2011-04-01

    Several measurements of the radon concentration are performed by RAD7 in the University of South China. We find that 30-40 min is needed for RAD7 for tracing the concentration of the standard radon chamber. There are two reasons. The first is that the sufficient time of air cycle is needed for the radon concentration in internal cell of RAD7 equal to that of the environment; and the second is that the sufficient decay time is needed for the (218)Po concentration in internal cell of RAD7 equal to that of the radon. We used a zeroth order approximation to describe the evolution of the environment radon concentration, and obtained a novel algorithm for quick and continuous tracing the change of radon concentration. The corrected radon concentration obtained through this method is in good agreement with the reference value. This method can be applied to develop and improve the instruments for tracing the change of radon concentration quickly. PMID:21529004

  15. Pyromorphite formation and stability after quick lime neutralisation in the presence of soil and clay sorbents

    SciTech Connect

    Chappell, Mark A.; Scheckel, Kirk G.

    2008-06-16

    Soluble Pb is immobilised in pure systems as pyromorphite by adding sources of P, but doubts remain about the effectiveness of this approach in natural soil systems, particularly given the ability of soil humic substances to interfere with Pb-mineral formation. In addition, recent thermodynamic modelling predicts that pyromorphite formed by the addition of phosphoric acid to Pb-contaminated soils, followed by neutralisation with quick lime (Ca(OH){sub 2}) will destabilise the mineral, reverting the Pb back to more soluble species such as cerussite or anglesite. In this paper, we describe experiments to form pyromorphite in the presence of two different sorbents: a reference smectite called Panther Creek Bentonite, and a commercially available, organically rich potting mixture. We present X-ray diffraction (XRD) evidence suggestive of pyromorphite formation, yet, like similar studies, the evidence is less than conclusive. Linear combination fits of Pb X-ray absorption fine-structure spectroscopy (XAFS) data collected at the Advanced Photon Source at Argonne National Laboratory show that pyromorphite is the major Pb species formed after the addition of phosphoric acid. Furthermore, XAFS data shows that neutralising with quick lime enhances (as opposed to reducing) pyromorphite content in these systems. These results call into question relying solely on XRD data to confirm or deny the existence of minerals like pyromorphite, whose complex morphology give less intense and more complicated diffraction patterns than some of the simpler Pb minerals.

  16. Optical biosensor system for the quick and reliable detection of virus infections: VIROSENS

    NASA Astrophysics Data System (ADS)

    Proll, Günther; Hartjes, Anja; Sinclair, Alexander; Markovic, Goran; Pröll, Florian; Patel, Pranav; Niedrig, Matthias

    2014-10-01

    Viral infections are of special threat because they can induce severe courses of disease but only few medical treatments are available. Because of socio-economic and climate changes, increased worldwide mobility and population growth, the risk of newly occurring and quickly spreading viral pathogens has increased. A diagnosis of these diseases at an early stage is essential for a quick risk assessment and a proper health management as well as patient's treatment in an optimal way. Currently, the diagnosis of such diseases is based on time consuming and costly detection methods that can only be performed by specially trained personnel in laboratories at specific security levels. Aim of the project VIROSENS is the development of a biosensor platform that can specifically detect virus particles as well as virus-specific antibodies out of biological matrices like blood, serum, plasma and other body fluids. For this purpose, a disposable cartridge for such antibody- and virus-arrays is designed and developed within the project. The optical detection of viruses is performed with a portable device that will be benchmarked and evaluated concerning currently used standard detection methods in terms of its analytical performance. Within this project, a novel combination of serological tests and direct detection of virus particles will be developed, which will provide faster and more reliable results than presently available and used test systems.

  17. Quick, portable toxicity testing of marine or terrigenous fluids, sediments, or chemicals with bioluminescent organism

    SciTech Connect

    Sabate, R.W.; Stiffey, A.V.; Dewailly, E.L.

    1995-12-31

    A hand-held, battery-operated instrument, which measures bioluminescence inhibition of the microscopic marine dinoflagellate Pyrocystis lunula, is capable of field-testing substances for toxicity. The organism is sensitive to ppb of strong toxicants. It tolerates some solvents in concentrations necessary for testing lipophylic samples. A test consumes only micrograms of sample. This method requires no adjustments for salinity, pH, color, or turbidity. It has been used successfully to test oil-well drilling fluids, brines produced with oil, waters and sediments from streams and lakes and petroleum-plant effluents containing contaminants such as benzene. The test is non-specific; however, if the substance is known, the end-point effects a direct measurement of its concentration. One-hour toxicity screening tests in the field produce results comparable to the standard four-hour laboratory test. Keeping the sample in the dark during incubation and testing, together with shortness of the overall procedure, eliminates anomalies from light-sensitive substances. Day-to-day variation, as well as among test replicates, is less than 10%. This quick method yields results comparable with a quick test that uses Photobacterium phosphoria, and with 96-hour tests that use Mysidopsis bahia, Artemia salina, Gonyaulax polyedra, Pimephales promelas, Ceriodaphnia dubia, and Cyprinodon variegatus.

  18. Multilevel spatial semantic model for urban house information extraction automatically from QuickBird imagery

    NASA Astrophysics Data System (ADS)

    Guan, Li; Wang, Ping; Liu, Xiangnan

    2006-10-01

    Based on the introduction to the characters and constructing flow of space semantic model, the feature space and context of house information in high resolution remote sensing image are analyzed, and the house semantic network model of Quick Bird image is also constructed. Furthermore, the accuracy and practicability of space semantic model are checked up through extracting house information automatically from Quick Bird image after extracting candidate semantic nodes to the image by taking advantage of grey division method, window threshold value method and Hough transformation. Sample result indicates that its type coherence, shape coherence and area coherence are 96.75%, 89.5 % and 88 % respectively. Thereinto the effect of the extraction of the houses with rectangular roof is the best and that with herringbone and the polygonal roofs is just ideal. However, the effect of the extraction of the houses with round roof is not satisfied and thus they need the further perfection to the semantic model to make them own higher applied value.

  19. Supply curve impacts of Quick Start projects in Phase 1 of the Resource Supply Expansion Program

    SciTech Connect

    Wright, G.A.; Warwick, W.M.; Durfee, D.L.

    1993-12-01

    The Pacific Northwest Laboratory (PNL) prepared this report under contract to the Bonneville Power Administration (Bonneville), as part of the Resource Supply Expansion Project (RSEP). RSEP is a regional program instituted by Bonneville to expand conservation and renewable generation options available to resource planners and utilities. Resource alternatives are increased by RSEP through demonstration projects designed in a collaborative process that targets specific barriers to resource development including institutional, market, and reliability barriers. RSEP was launched with several projects that were designed and implemented quickly in 1992 to lay a foundation for future collaboration. The purpose of this report is to introduce the goal and structure of RSEP and to describe the so-called ``Quick Start`` RSEP projects in Phase One of RSEP. This description includes a preliminary estimate of the energy savings and/or other expected impacts of RSEP projects funded in FY 1992 and 1993. Similar estimates are also included for Bonneville projects to confirm wind and geothermal generation potential. Bonneville`s Geothermal Confirmation Agenda preceded implementation of RSEP, although it has a similar objective and collaborative approach.

  20. The Quick Health Data Online: the ultimate interactive database on recent trends in women's health.

    PubMed

    Choi, Colleen S; Haynes, Suzanne; Konsella, Laurie; Goodman, Colleen; Meltzer, Alfred

    2007-09-01

    A growing number of nonprofit and government agencies have developed interactive databases to help their website visitors and constituents obtain information about past and recent trends in healthcare. The Office on Women's Health of the Department of Health and Human Services has joined this pursuit by launching Quick Health Data Online (QHData), an interactive database providing health statistics that specifically pertain to women. Since its inception, QHData has quickly emerged as the leader in sophisticated and user-friendly interactive databases. What is so remarkable about QHData? This database is capable of generating health statistics by race (i.e., blacks, whites, Asian and Pacific Islanders, Hispanics, and Native Americans), gender, and age. The results can also be produced across different geographic levels-the nation, by region, state, and county; the jurisdiction statuses of the counties can also be identified as a border, frontier, metropolitan, urban, or rural. Users also have the flexibility of presenting the results in tables, bar graphs, and maps or exporting results to other processing or display tools. PMID:17903071