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Sample records for gerenciamento dos testes

  1. Different Roles of DosS and DosT in the Hypoxic Adaptation of Mycobacteria▿

    PubMed Central

    Kim, Min-Ju; Park, Kwang-Jin; Ko, In-Jeong; Kim, Young Min; Oh, Jeong-Il

    2010-01-01

    The DosS (DevS) and DosT histidine kinases form a two-component system together with the DosR (DevR) response regulator in Mycobacterium tuberculosis. DosS and DosT, which have high sequence similarity to each other over the length of their amino acid sequences, contain two GAF domains (GAF-A and GAF-B) in their N-terminal sensory domains. Complementation tests in conjunction with phylogenetic analysis showed that DevS of Mycobacterium smegmatis is more closely related to DosT than DosS. We also demonstrated in vivo that DosS and DosT of M. tuberculosis play a differential role in hypoxic adaptation. DosT responds to a decrease in oxygen tension more sensitively and strongly than DosS, which might be attributable to their different autooxidation rates. The different responsiveness of DosS and DosT to hypoxia is due to the difference in their GAF-A domains accommodating the hemes. Multiple alignment analysis of the GAF-A domains of mycobacterial DosS (DosT) homologs and subsequent site-directed mutagenesis revealed that just one substitution of E87, D90, H97, L118, or T169 of DosS with the corresponding residue of DosT is sufficient to convert DosS to DosT with regard to the responsiveness to changes in oxygen tension. PMID:20675480

  2. DOS cones along atomic chains

    NASA Astrophysics Data System (ADS)

    Kwapiński, Tomasz

    2017-03-01

    The electron transport properties of a linear atomic chain are studied theoretically within the tight-binding Hamiltonian and the Green’s function method. Variations of the local density of states (DOS) along the chain are investigated. They are crucial in scanning tunnelling experiments and give important insight into the electron transport mechanism and charge distribution inside chains. It is found that depending on the chain parity the local DOS at the Fermi level can form cone-like structures (DOS cones) along the chain. The general condition for the local DOS oscillations is obtained and the linear behaviour of the local density function is confirmed analytically. DOS cones are characterized by a linear decay towards the chain which is in contrast to the propagation properties of charge density waves, end states and Friedel oscillations in one-dimensional systems. We find that DOS cones can appear due to non-resonant electron transport, the spin–orbit scattering or for chains fabricated on a substrate with localized electrons. It is also shown that for imperfect chains (e.g. with a reduced coupling strength between two neighboring sites) a diamond-like structure of the local DOS along the chain appears.

  3. A DOS Primer for Librarians.

    ERIC Educational Resources Information Center

    Beecher, Henry

    1989-01-01

    Presents a basic orientation to the functions and capabilities of disk operating systems (DOS), aimed at the nontechnically oriented user of IBM personal computers and compatible microcomputers. Areas discussed include booting up, the use of floppy and hard disks, file storage and manipulation, and directories. Further readings are provided. (CLB)

  4. A DOS Primer for Librarians.

    ERIC Educational Resources Information Center

    Beecher, Henry

    1989-01-01

    Presents a basic orientation to the functions and capabilities of disk operating systems (DOS), aimed at the nontechnically oriented user of IBM personal computers and compatible microcomputers. Areas discussed include booting up, the use of floppy and hard disks, file storage and manipulation, and directories. Further readings are provided. (CLB)

  5. DIGLIB. PC-DOS Graphics Subroutine Library

    SciTech Connect

    Burleson, R.R.

    1989-02-01

    DIGLIB is a collection of general graphics subroutines. It was designed to be small, reasonably fast, device-independent, and compatible with DEC-supplied operating systems for VAXes, PDP-11s, and LSI-11s, and the DOS operating system for IBM PCs and IBM-compatible machines. DIGLIB/PC runs on IBM PCs under PC-DOS or MS-DOS. The software is readily usable by casual programmers for two-dimensional plotting.

  6. Self-regulating the effortful "social dos".

    PubMed

    Cortes, Kassandra; Kammrath, Lara K; Scholer, Abigail A; Peetz, Johanna

    2014-03-01

    In the current research, we explored differences in the self-regulation of the personal dos (i.e., engaging in active and effortful behaviors that benefit the self) and in the self-regulation of the social dos (engaging in those same effortful behaviors to benefit someone else). In 6 studies, we examined whether the same trait self-control abilities that predict task persistence on personal dos would also predict task persistence on social dos. That is, would the same behavior, such as persisting through a tedious and attentionally demanding task, show different associations with trait self-control when it is framed as benefitting the self versus someone else? In Studies 1-3, we directly compared the personal and social dos and found that trait self-control predicted self-reported and behavioral personal dos but not social dos, even when the behaviors were identical and when the incentives were matched. Instead, trait agreeableness--a trait linked to successful self-regulation within the social domain--predicted the social dos. Trait self-control did not predict the social dos even when task difficulty increased (Study 4), but it did predict the social don'ts, consistent with past research (Studies 5-6). The current studies provide support for the importance of distinguishing different domains of self-regulated behaviors and suggest that social dos can be successfully performed through routes other than traditional self-control abilities. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

  7. A DOS Primer for Librarians: Part II.

    ERIC Educational Resources Information Center

    Beecher, Henry

    1990-01-01

    Provides an introduction to DOS commands and strategies for the effective organization and use of hard disks. Functions discussed include the creation of directories and subdirectories, enhanced copying, the assignment of disk drives, and backing up the hard disk. (CLB)

  8. A DOS Primer for Librarians: Part II.

    ERIC Educational Resources Information Center

    Beecher, Henry

    1990-01-01

    Provides an introduction to DOS commands and strategies for the effective organization and use of hard disks. Functions discussed include the creation of directories and subdirectories, enhanced copying, the assignment of disk drives, and backing up the hard disk. (CLB)

  9. DataPlus™ - a revolutionary applications generator for DOS hand-held computers

    Treesearch

    David Dean; Linda Dean

    2000-01-01

    DataPlus allows the user to easily design data collection templates for DOS-based hand-held computers that mimic clipboard data sheets. The user designs and tests the application on the desktop PC and then transfers it to a DOS field computer. Other features include: error checking, missing data checks, and sensor input from RS-232 devices such as bar code wands,...

  10. Measurements of degree of sensitization (DoS) in aluminum alloys using EMAT ultrasound.

    PubMed

    Li, Fang; Xiang, Dan; Qin, Yexian; Pond, Robert B; Slusarski, Kyle

    2011-07-01

    Sensitization in 5XXX aluminum alloys is an insidious problem characterized by the gradual formation and growth of beta phase (Mg(2)Al(3)) at grain boundaries, which increases the susceptibility of alloys to intergranular corrosion (IGC) and intergranular stress-corrosion cracking (IGSCC). The degree of sensitization (DoS) is currently quantified by the ASTM G67 Nitric Acid Mass Loss Test, which is destructive and time consuming. A fast, reliable, and non-destructive method for rapid detection and the assessment of the condition of DoS in AA5XXX aluminum alloys in the field is highly desirable. In this paper, we describe a non-destructive method for measurements of DoS in aluminum alloys with an electromagnetic acoustic transducer (EMAT). AA5083 aluminum alloy samples were sensitized at 100°C with processing times varying from 7days to 30days. The DoS of sensitized samples was first quantified with the ASTM 67 test in the laboratory. Both ultrasonic velocity and attenuation in sensitized specimens were then measured using EMAT and the results were correlated with the DoS data. We found that the longitudinal wave velocity was almost a constant, independent of the sensitization, which suggests that the longitudinal wave can be used to determine the sample thickness. The shear wave velocity and especially the shear wave attenuation are sensitive to DoS. Relationships between DoS and the shear velocity, as well as the shear attenuation have been established. Finally, we performed the data mining to evaluate and improve the accuracy in the measurements of DoS in aluminum alloys with EMAT. Copyright © 2010 Elsevier B.V. All rights reserved.

  11. 27 CFR 9.175 - Dos Rios.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... is located in northern Mendocino County, California, at the confluence of the Eel River and the Middle Fork of the Eel River. The area's boundaries are defined as follows— (1) Beginning in the... the Middle Fork of the Eel River, to the southeast corner of section 11, T21N, R13W (Dos...

  12. "DOS for Managers." Management Training Series.

    ERIC Educational Resources Information Center

    Marion County Schools, Fairmont, WV.

    A plan is provided for a lesson on disk operating systems (DOS) for managers. Twenty-five lesson objectives are listed, followed by suggestions for learning activities and special resources. In the presentation section, key points and content are provided for 25 instructional topics that correspond to the 25 lesson objectives. The topics are as…

  13. Testing, Testing, Testing

    ERIC Educational Resources Information Center

    Coatney, Sharon

    2005-01-01

    Teacher-librarians and teachers said that testing is driving everything that they do. One elementary teacher said that her entire grade level had not been to the library all year because they did not have time because the testing is all consuming and dictating all they do in the classroom. The teacher-librarian at that school added there was…

  14. DOS: the discrete-ordinates system. [LMFBR

    SciTech Connect

    Rhoades, W. A.; Emmett, M. B.

    1982-09-01

    The Discrete Ordinates System determines the flux of neutrons or photons due either to fixed sources specified by the user or to sources generated by particle interaction with the problem materials. It also determines numerous secondary results which depend upon flux. Criticality searches can be performed. Numerous input, output, and file manipulation facilities are provided. The DOS driver program reads the problem specification from an input file and calls various program modules into execution as specified by the input file.

  15. DIGLIB. PC-DOS Graphics Subroutine Library

    SciTech Connect

    Brand, H.R.

    1989-02-01

    DIGLIB is a collection of general graphics subroutines. It was designed to be small, reasonably fast, device-independent, and compatible with DEC-supplied operating systems for VAXes, PDP-11s, and LSI-11s, and the DOS operating system for IBM PCs and IBM-compatible machines. DIGLIB/VMS runs on the VAX and MicroVAX series of computers under VMS. The software is readily usable by casual programmers for two-dimensional plotting.

  16. Disk Operating System--DOS. Teacher Packet. Learning Activity Packets.

    ERIC Educational Resources Information Center

    Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

    The Learning Activity Packets (LAPs) contained in this manual are designed to assist the beginning user in understanding DOS (Disk Operating System). LAPs will not work with any version below DOS Version 3.0 and do not address the enhanced features of versions 4.0 or higher. These elementary activities cover only the DOS commands necessary to…

  17. Effect of modulation frequency bandwidth on measurement accuracy and precision for digital diffuse optical spectroscopy (dDOS)

    NASA Astrophysics Data System (ADS)

    Jung, Justin; Istfan, Raeef; Roblyer, Darren

    2014-03-01

    Near-infrared (NIR) frequency-domain Diffuse Optical Spectroscopy (DOS) is an emerging technology with a growing number of potential clinical applications. In an effort to reduce DOS system complexity and improve portability, we recently demonstrated a direct digital sampling method that utilizes digital signal generation and detection as a replacement for more traditional analog methods. In our technique, a fast analog-to-digital converter (ADC) samples the detected time-domain radio frequency (RF) waveforms at each modulation frequency in a broad-bandwidth sweep (50- 300MHz). While we have shown this method provides comparable results to other DOS technologies, the process is data intensive as digital samples must be stored and processed for each modulation frequency and wavelength. We explore here the effect of reducing the modulation frequency bandwidth on the accuracy and precision of extracted optical properties. To accomplish this, the performance of the digital DOS (dDOS) system was compared to a gold standard network analyzer based DOS system. With a starting frequency of 50MHz, the input signal of the dDOS system was swept to 100, 150, 250, or 300MHz in 4MHz increments and results were compared to full 50-300MHz networkanalyzer DOS measurements. The average errors in extracted μa and μs' with dDOS were lowest for the full 50-300MHz sweep (less than 3%) and were within 3.8% for frequency bandwidths as narrow as 50-150MHz. The errors increased to as much as 9.0% when a bandwidth of 50-100MHz was tested. These results demonstrate the possibility for reduced data collection with dDOS without critical compensation of optical property extraction.

  18. Strains of the East Asian (W/Beijing) Lineage of Mycobacterium tuberculosis Are DosS/DosT-DosR Two-Component Regulatory System Natural Mutants▿ †

    PubMed Central

    Fallow, Ashley; Domenech, Pilar; Reed, Michael B.

    2010-01-01

    As part of our ongoing efforts to uncover the phenotypic consequences of genetic variability among clinical Mycobacterium tuberculosis isolates, we previously reported that isolates of the “East Asian” or “W/Beijing” lineage constitutively overexpress the coordinately regulated transcriptional program known as the DosR regulon under standard in vitro conditions. This phenotype distinguishes the W/Beijing lineage from all other M. tuberculosis lineages, which normally induce expression of this regulon only once exposed to low oxygen or nitric oxide, both of which result in inhibition of bacterial respiration and replication. Transcription of the DosR regulon is controlled through a two-component regulatory system comprising the transcription factor DosR and two possible cognate histidine sensor kinases, DosS and DosT. Through sequence analysis of a carefully selected set of isolates representing each of the major M. tuberculosis lineages, we describe herein a naturally occurring frameshift mutation in the gene encoding the DosT sensor kinase for isolates of the most recently evolved W/Beijing sublineages. Intriguingly, the occurrence of the frameshift mutation correlates precisely with the appearance of the constitutive DosR regulon phenotype displayed by the same “modern” W/Beijing strains. However, complementation studies have revealed that the mutation in dosT alone is not directly responsible for the constitutive DosR regulon phenotype. Our data serve to highlight the evolutionary pressure that exists among distinct M. tuberculosis lineages to maintain tight control over DosR regulon expression. PMID:20154135

  19. Inhibitors of Mycobacterium tuberculosis DosRST signaling and persistence.

    PubMed

    Zheng, Huiqing; Colvin, Christopher J; Johnson, Benjamin K; Kirchhoff, Paul D; Wilson, Michael; Jorgensen-Muga, Katriana; Larsen, Scott D; Abramovitch, Robert B

    2017-02-01

    The Mycobacterium tuberculosis (Mtb) DosRST two-component regulatory system promotes the survival of Mtb during non-replicating persistence (NRP). NRP bacteria help drive the long course of tuberculosis therapy; therefore, chemical inhibition of DosRST may inhibit the ability of Mtb to establish persistence and thus shorten treatment. Using a DosRST-dependent fluorescent Mtb reporter strain, a whole-cell phenotypic high-throughput screen of a ∼540,000 compound small-molecule library was conducted. The screen discovered novel inhibitors of the DosRST regulon, including three compounds that were subject to follow-up studies: artemisinin, HC102A and HC103A. Under hypoxia, all three compounds inhibit Mtb-persistence-associated physiological processes, including triacylglycerol synthesis, survival and antibiotic tolerance. Artemisinin functions by disabling the heme-based DosS and DosT sensor kinases by oxidizing ferrous heme and generating heme-artemisinin adducts. In contrast, HC103A inhibits DosS and DosT autophosphorylation activity without targeting the sensor kinase heme.

  20. A Comparison of Three LISP Interpreters for MS-DOS-Based Microcomputers

    PubMed Central

    Kahane, Stephen N.; Johannes, Richard S.

    1985-01-01

    We report a comparison of three commercially available LISP interpreters running on MS-DOS-based microcomputers. Marked differences were found between the different products' memory addressing abilities, error handling and debugging facilities. Editing tools, tutoring environments, windowing, graphic capabilities, operating system and port call facilities are also contrasted. Speed was tested via a group of LISP functions (benchmarks) that attempt to isolate list manipulation, iteration, function calling, recursion and mathematical calculation performance.

  1. CRONUS, A Distributed Operating System. Volume 4. CRONUS DOS implementation

    DTIC Science & Technology

    1988-06-01

    3 VI’(of i,:oa4r) TC- ’ CRON S, A DISTRIBUTED OPERATING S YS^4T EM: CRONUS DOS Implementation .131N Laboratories Incorporated R~. Schantz, K...Classification) CRONUS , A DISTRIBUTED OPERATING SYSTEM: CRONUS DOS Implementation 1Z.P ERSONAL AUTHOR(S) R. Schantz, K. Schroder, M. Barrow, G. Bono, M. Dean, R...second contract phase for development of the Cronus Project. ’% Cronus is the name given to the distributed operating system (DOS) and system

  2. Observational Assessment of Preschool Disruptive Behavior, Part I: reliability of the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS).

    PubMed

    Wakschlag, Lauren S; Hill, Carri; Carter, Alice S; Danis, Barbara; Egger, Helen L; Keenan, Kate; Leventhal, Bennett L; Cicchetti, Domenic; Maskowitz, Katie; Burns, James; Briggs-Gowan, Margaret J

    2008-06-01

    To examine the reliability of the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS), a new observational method for assessing preschool disruptive behavior. The DB-DOS is a structured clinic-based assessment designed to elicit clinically salient behaviors relevant to the diagnosis of disruptive behavior in preschoolers. Child behavior is assessed in three interactional contexts that vary by partner (parent versus examiner) and level of support provided. Twenty-one disruptive behaviors are coded within two domains: problems in Behavioral Regulation and problems in Anger Modulation. A total of 364 referred and nonreferred preschoolers participated: interrater reliability and internal consistency were assessed on a primary sample (n = 335) and test-retest reliability was assessed in a separate sample (n = 29). The DB-DOS demonstrated good interrater and test-retest reliability. Confirmatory factor analysis demonstrated an excellent fit of the DB-DOS multidomain model of disruptive behavior. The DB-DOS is a reliable observational tool for clinic-based assessment of preschool disruptive behavior. This standardized assessment method holds promise for advancing developmentally sensitive characterization of preschool psychopathology.

  3. Divorce Matters: Visitation Dos and Don'ts

    MedlinePlus

    divorce matters Visitation dos and don’ts For both parents and children, visitation is critical to maintaining ... sense of connectedness both during and after a divorce. But in the early stages of family restructuring ...

  4. Research on a Denial of Service (DoS) Detection System Based on Global Interdependent Behaviors in a Sensor Network Environment

    PubMed Central

    Song, Jae-gu; Jung, Sungmo; Kim, Jong Hyun; Seo, Dong Il; Kim, Seoksoo

    2010-01-01

    This research suggests a Denial of Service (DoS) detection method based on the collection of interdependent behavior data in a sensor network environment. In order to collect the interdependent behavior data, we use a base station to analyze traffic and behaviors among nodes and introduce methods of detecting changes in the environment with precursor symptoms. The study presents a DoS Detection System based on Global Interdependent Behaviors and shows the result of detecting a sensor carrying out DoS attacks through the test-bed. PMID:22163475

  5. CALS Test Network Handbook

    DTIC Science & Technology

    1993-03-01

    Reduce media dependent instructions - Review, revise and simplify decl:ttra:on and data file header information - Review packaging requirements...5881 73 CTN Handbook March 1993 CTN Test Reports TEST DATA AND TOOLS X Media (F=Floppy; T=9-Track Tape) For Floppy: - 3.5" LD/HD - 5.25" LD/HD E I...CTNTB.350) CIN TAPETOOL (VAX, VMS. StN’UNIX. PC DOS) CTN Tech, Pubs. Ref Docs -l I Files (PreliminarN) _ CTN Tools Tape To receive copies of test data

  6. Izabel dos Santos and the training of the health workers.

    PubMed

    Paiva, Carlos Henrique Assunção

    2015-06-01

    This article discusses the career of Izabel dos Santos (1927-2010) as a means of examining the connections between health schools and agendas in contemporary Brazil. The article highlights dos Santos's training and her work in the Serviço Especial de Saúde Pública (SESP- Special Public Health Service), the Pan American Health Organization (PAHO) and in the formulation and implementation of national training programs for human resources within the area of health from the late 1970s onwards. The article highlights dos Santos's central role in the formulation and implementation of training policies for health workers, especially nursing technicians and assistants, and demonstrates how she occupies an important place in the history of Brazilian public health.

  7. Isotopic and chemical investigations on Angra dos Reis

    NASA Technical Reports Server (NTRS)

    Wasserburg, G. J.; Tera, F.; Papanastassiou, D. A.; Huneke, J. C.

    1977-01-01

    Isotope ratios and chemical abundance measurements for a variety of elements are reported for total meteorite and mineral separates of the Angra dos Reis achondrite. U-Pb, Th-Pb, and Pb-Pb ages are concordant at 4.54 eons for the total meteorite and for high-purity whitlockite, which indicates that Angra dos Reis is an early planetary differentiate that has not been disturbed for these systems since 4.54 eons ago. The implications of different ratios of Sr-87 and Sr-86 found in different components are discussed. Xe isotopic measurements show that Pu-244 was enriched in the whitlockite relative to the pyroxene by a factor of about 18. Chemical enrichment factors between the whitlockite and the fassaitic pyroxene in Angra dos Reis are presented

  8. When worlds collide - Mac to MS-DOS. [Data transfer to and from Apple Macintosh computers and MS-DOS based personal computers

    SciTech Connect

    Busbey, A.B.

    1989-04-01

    A number of methods and products, both hardware and software, to allow data exchange between Apple Macintosh computers and MS-DOS based systems. These included serial null modem connections, MS-DOS hardware and/or software emulation, MS-DOS disk-reading hardware and networking.

  9. 48 CFR 619.402-70 - DOS designee.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Section 619.402-70 Federal Acquisition Regulations System DEPARTMENT OF STATE SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS Cooperation with the Small Business Administration 619.402-70 DOS designee. Where the FAR requires action by a Small Business Administration procurement center representative, but one has not been...

  10. Special Section--Library Workstations: Mac and DOS.

    ERIC Educational Resources Information Center

    Valauskas, Ed; Flower, Eric

    1993-01-01

    Two articles discuss the library hardware marketplace. The first examines the Apple Macintosh in libraries from 1984 to the present, including linking libraries, computers, and endusers over large geographic distances. The second article discusses upgrading components of systems in the IBM compatible, MS-DOS, and Windows environments as costs…

  11. Ultrafast ligand dynamics in the heme-based GAF sensor domains of the histidine kinases DosS and DosT from Mycobacterium tuberculosis†

    PubMed Central

    Vos, Marten H.; Bouzhir-Sima, Latifa; Lambry, Jean-Christophe; Luo, Hao; Eaton-Rye, Julian J.; Ioanoviciu, Alexandra; Ortiz de Montellano, Paul R.; Liebl, Ursula

    2011-01-01

    The transcriptional regulator DosR from M. tuberculosis plays a crucial role in the virulence to dormancy transition of the pathogen. DosR can be activated by DosT and DosS, two histidine kinases with heme-containing sensor GAF domains, capable of diatomic ligand binding, To investigate the initial processes occurring upon ligand dissociation, we performed ultrafast time-resolved absorption spectroscopy of the isolated sensor domains ligated with O2, NO and CO. The results reveal a relatively closed heme pocket for both proteins. For DosT the yield of O2 escape from the heme pocket on the picoseconds timescale upon photodissociation was found to be very low (1.5%), similar to other heme-based oxygen sensor proteins, implying that this sensor acts as an effective O2 trap. Remarkably, this yield is an order of magnitude higher in DosS (18%). For CO, by contrast, the fraction of CO rebinding within the heme pocket is higher in DosS. Experiments with mutant DosT sensor domains and molecular dynamics simulations indicate an important role in ligand discrimination of the distal tyrosine, present in both proteins, which forms a hydrogen bond with heme-bound O2. We conclude that despite their similarity, DosT and DosS display ligand-specific different primary dynamics during the initial phases of intra-protein signaling. The distal tyrosine, present in both proteins, plays an important role in these processes. PMID:22142262

  12. Deceiving entropy-based DoS detection

    NASA Astrophysics Data System (ADS)

    Özçelik, Ä.°lker; Brooks, Richard R.

    2014-06-01

    Denial of Service (DoS) attacks disable network services for legitimate users. A McAfee report shows that eight out of ten Critical Infrastructure Providers (CIPs) surveyed had a significant Distributed DoS (DDoS) attack in 2010.1 Researchers proposed many approaches for detecting these attacks in the past decade. Anomaly based DoS detection is the most common. In this approach, the detector uses statistical features; such as the entropy of incoming packet header fields like source IP addresses or protocol type. It calculates the observed statistical feature and triggers an alarm if an extreme deviation occurs. However, intrusion detection systems (IDS) using entropy based detection can be fooled by spoofing. An attacker can sniff the network to collect header field data of network packets coming from distributed nodes on the Internet and fuses them to calculate the entropy of normal background traffic. Then s/he can spoof attack packets to keep the entropy value in the expected range during the attack. In this study, we present a proof of concept entropy spoofing attack that deceives entropy based detection approaches. Our preliminary results show that spoofing attacks cause significant detection performance degradation.

  13. 33 CFR 105.245 - Declaration of Security (DoS).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... DoS and for handling DoS requests from a vessel. (b) At MARSEC Level 1, a facility receiving a cruise ship or a manned vessel carrying Certain Dangerous Cargo, in bulk, must comply with the following:...

  14. 33 CFR 105.245 - Declaration of Security (DoS).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... DoS and for handling DoS requests from a vessel. (b) At MARSEC Level 1, a facility receiving a cruise ship or a manned vessel carrying Certain Dangerous Cargo, in bulk, must comply with the following:...

  15. 33 CFR 105.245 - Declaration of Security (DoS).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... DoS and for handling DoS requests from a vessel. (b) At MARSEC Level 1, a facility receiving a cruise ship or a manned vessel carrying Certain Dangerous Cargo, in bulk, must comply with the following:...

  16. Structures of Mycobacterium tuberculosis DosR and DosR-DNA Complex Involved in Gene Activation during Adaptation to Hypoxic Latency

    SciTech Connect

    Wisedchaisri, Goragot; Wu, Meiting; Rice, Adrian E; Roberts, David M; Sherman, David R; Hol, Wim G.J.

    2010-07-20

    On encountering low oxygen conditions, DosR activates the transcription of 47 genes, promoting long-term survival of Mycobacterium tuberculosis in a non-replicating state. Here, we report the crystal structures of the DosR C-terminal domain and its complex with a consensus DNA sequence of the hypoxia-induced gene promoter. The DosR C-terminal domain contains four {alpha}-helices and forms tetramers consisting of two dimers with non-intersecting dyads. In the DNA-bound structure, each DosR C-terminal domain in a dimer places its DNA-binding helix deep into the major groove, causing two bends in the DNA. DosR makes numerous protein-DNA base contacts using only three amino acid residues per subunit: Lys179, Lys182, and Asn183. The DosR tetramer is unique among response regulators with known structures.

  17. What State Tests Test.

    ERIC Educational Resources Information Center

    McGee, Glenn W.

    What the Illinois Goal Assessment Program (IGAP) test actually tests and the consequences of these tests for funding decisions were studied with a random sample of 100 school districts in the Cook County suburbs of Chicago. Eighth-grade IGAP scores for reading were obtained from the state report card, a document prepared by each school district…

  18. Quality control and assurance for validation of DOS/I measurements

    NASA Astrophysics Data System (ADS)

    Cerussi, Albert; Durkin, Amanda; Kwong, Richard; Quang, Timothy; Hill, Brian; Tromberg, Bruce J.; MacKinnon, Nick; Mantulin, William W.

    2010-02-01

    Ongoing multi-center clinical trials are crucial for Biophotonics to gain acceptance in medical imaging. In these trials, quality control (QC) and assurance (QA) are key to success and provide "data insurance". Quality control and assurance deal with standardization, validation, and compliance of procedures, materials and instrumentation. Specifically, QC/QA involves systematic assessment of testing materials, instrumentation performance, standard operating procedures, data logging, analysis, and reporting. QC and QA are important for FDA accreditation and acceptance by the clinical community. Our Biophotonics research in the Network for Translational Research in Optical Imaging (NTROI) program for breast cancer characterization focuses on QA/QC issues primarily related to the broadband Diffuse Optical Spectroscopy and Imaging (DOS/I) instrumentation, because this is an emerging technology with limited standardized QC/QA in place. In the multi-center trial environment, we implement QA/QC procedures: 1. Standardize and validate calibration standards and procedures. (DOS/I technology requires both frequency domain and spectral calibration procedures using tissue simulating phantoms and reflectance standards, respectively.) 2. Standardize and validate data acquisition, processing and visualization (optimize instrument software-EZDOS; centralize data processing) 3. Monitor, catalog and maintain instrument performance (document performance; modularize maintenance; integrate new technology) 4. Standardize and coordinate trial data entry (from individual sites) into centralized database 5. Monitor, audit and communicate all research procedures (database, teleconferences, training sessions) between participants ensuring "calibration". This manuscript describes our ongoing efforts, successes and challenges implementing these strategies.

  19. Prevalence and predictors of orthorexia nervosa among German students using the 21-item-DOS.

    PubMed

    Depa, Julia; Schweizer, Jenny; Bekers, Sandra-Kristin; Hilzendegen, Carolin; Stroebele-Benschop, Nanette

    2017-03-01

    Orthorexia nervosa (ON) describes the constant pathological preoccupation with "healthy" nutrition. The current results regarding the prevalence of ON differ widely possibly because of invalid measurement tools. This study aimed to investigate ON prevalence in a sample of German students and to examine age, gender, semester, and nutritional knowledge as potential predictors of ON by comparing nutrition science (NS) with economics (ES) students. A total of 446 university students participated in the survey (NS 188, ES 268). ON was determined using the 21-item-DOS, which is a well-constructed, validated, and reliability-tested questionnaire. Age, gender, and semester were also assessed. Of the total sample, 3.3 % were classified as having ON and 9.0 % were at risk of developing ON. Older students scored significantly higher on the subscale "avoidance of additives" compared with younger students and students of lower semester suffered significantly more often from ON than students of higher semester. In addition, comparing field of study showed no significant difference in the prevalence of ON or the risk of developing ON between female NS and ES students. However, mean values for the three DOS subscales were higher among female NS students, albeit far below values indicating pathological behavior. The prevalence of ON appears to be low in this sample of German university students. Female NS students do not seem to have higher prevalence of ON or risk of developing ON.

  20. [Anterior cruciate ligament-plasty using the "U-dos" technique].

    PubMed

    Morales-Trevizo, C; Paz-García, M; Leal-Berumen, I; Leal-Contreras, C; Berumen-Nafarrate, E

    2013-01-01

    The knee is a compound diarthrodial joint, vulnerable to serious injuries such as ligament injuries of: medial collateral ligament, lateral collateral ligament, anterior cruciate ligament and posterior cruciate ligament, as cruciate ligaments limit rotation movement in the joint. The purpose of our study was to create a new technique to treat injuries of the anterior cruciate ligament, which is composed of two bundles--anteromedial and posterolateral--trying to achieve an anatomical reconstruction that allows for a normal biomechanical recovery. This technique reduces the use of fixation material and costs. The diagnosis of anterior cruciate ligament injuries was made with the pivot shift test. There are currently two repair methods for anterior cruciate ligament injuries: single bundle or double bundle repair; none of these techniques is considered as the gold standard, as their results are very similar. This paper describes a technique used for the treatment of anterior cruciate ligament injuries, known as "U-dos", and its clinical results. Cross-sectional, observational study that enrolled 20 patients with total anterior cruciate ligament injuries who underwent anterior cruciate ligament plasty using the "U-dos" technique between June 2009 and June 2010. The technique requires the use of bone bank allograft, in this case of the anterior tibial ligament. Patients were assessed using the Lysholm scale and the pivot shift test. Our results show that all the pivot shift tests were negative and assessments according to the Lysholm scale were from normal to excellent in 95% of cases (19/20). Only one failure was reported, with avulsion of the graft attachment which required a surgical intervention.

  1. Test Architecture, Test Retrofit

    ERIC Educational Resources Information Center

    Fulcher, Glenn; Davidson, Fred

    2009-01-01

    Just like buildings, tests are designed and built for specific purposes, people, and uses. However, both buildings and tests grow and change over time as the needs of their users change. Sometimes, they are also both used for purposes other than those intended in the original designs. This paper explores architecture as a metaphor for language…

  2. The Secret List of Dos and Don'ts for Filmmaking

    NASA Astrophysics Data System (ADS)

    Kramer, N.

    2012-12-01

    Science is a massive black box to billions of people who walk the streets. However, the process of filmmaking can be equally as mystifying. As with the development of many scientific experiments, the process starts on a napkin at a restaurant…but then what? The road to scientific publication is propelled by a canonical list of several dos and don't that fit most situations. An equally useful list exists for up-and-coming producers. The list streamlines efforts, optimizes your use of the tools at your fingertips and enhances impact. Many fundamentals can be learned from books, but during this talk we will project and discuss several examples of best practices, from honing a story, to identifying audience appeal, filming, editing and the secrets of inexpensively acquiring expert help. Whether your goal is a two-minute webisode or a 90 minute documentary, these time-tested practices, with a little awareness, can give life to your films.;

  3. Detection of DoS attacks using intrusion detection sensors

    NASA Astrophysics Data System (ADS)

    Ramakrishna, Pathmenanthan; Maarof, Mohd A.

    2002-09-01

    Intrusion detection systems have usually been developed using large host-based components. These components impose an extra load on the system where they run (sometimes even requiring a dedicated system) and are subject to tampering or disabling by an intruder. Additionally, intrusion detection systems have usually obtained information about host behavior through indirect means, such as audit trails or network packet traces. This potentially allows intruders to modify the information before the intrusion detection system obtains it and slows down the detection and prevention of DoS attacks, making it possible for an intruder to hide his activities. In this paper we propose work that will attempt to show that it is possible to perform intrusion detection mechanism of DoS attacks using small sensors embedded in a computer system. These sensors will look for signs of specific intrusions. They will perform target monitoring by observing the behavior of the through an audit trail or other indirect means in real time while the Snort IDS running. Furthermore, by being built into the computer system it could provide a flexible alert sensor which may not impose a considerable extra load on the host they monitor.

  4. Análise da aplicação e dos resultados do modelo OPM3® para a área da saúde

    PubMed Central

    Augusto dos Santos, Luis; de Fátima Marin, Heimar

    2015-01-01

    Esta pesquisa procurou analisar se um modelo de questionário criado por uma comunidade internacional de gerenciamento de projetos e se é aplicavél a organizações voltadas a área de saúde. O modelo OPM3® (Organizational Project Management Maturity Model) foi criado para que organizações de qualquer área ou porte pudessem identificar a presença, ou ausência, de boas práticas de gerenciamento. O objetivo da aplicação desse modelo é avaliar sempre a organização e não o entrevistado. No presente artigo, são apresentados os resultados da aplicação desse modelo em uma organização que possuía produtos e serviços de tecnologia da informação aplicados à área de saúde. Este estudo verificou que o modelo é aplicável de forma rápida e que a organização analisada possuía um número expressivo de boas práticas. PMID:26924862

  5. Immunogenicity of Novel DosR Regulon-Encoded Candidate Antigens of Mycobacterium tuberculosis in Three High-Burden Populations in Africa▿ †

    PubMed Central

    Black, Gillian F.; Thiel, Bonnie A.; Ota, Martin O.; Parida, Shreemanta K.; Adegbola, Richard; Boom, W. Henry; Dockrell, Hazel M.; Franken, Kees L. M. C.; Friggen, Annemiek H.; Hill, Philip C.; Klein, Michel R.; Lalor, Maeve K.; Mayanja, Harriet; Schoolnik, Gary; Stanley, Kim; Weldingh, Karin; Kaufmann, Stefan H. E.; Walzl, Gerhard; Ottenhoff, Tom H. M.

    2009-01-01

    Increasing knowledge about DosR regulon-encoded proteins has led us to produce novel Mycobacterium tuberculosis antigens for immunogenicity testing in human populations in three countries in Africa to which tuberculosis (TB) is endemic. A total of 131 tuberculin skin test-positive and/or ESAT-6/CFP10-positive, human immunodeficiency virus-negative adult household contacts of active pulmonary TB cases from South Africa (n = 56), The Gambia (n = 26), and Uganda (n = 49) were tested for gamma interferon responses to 7 classical and 51 DosR regulon-encoded M. tuberculosis recombinant protein antigens. ESAT-6/CFP10 fusion protein evoked responses in >75% of study participants in all three countries. Of the DosR regulon-encoded antigens tested, Rv1733c was the most commonly recognized by participants from both South Africa and Uganda and the third most commonly recognized antigen in The Gambia. The four most frequently recognized DosR regulon-encoded antigens in Uganda (Rv1733c, Rv0081, Rv1735c, and Rv1737c) included the three most immunogenic antigens in South Africa. In contrast, Rv3131 induced the highest percentage of responders in Gambian contacts (38%), compared to only 3.4% of Ugandan contacts and no South African contacts. Appreciable percentages of TB contacts with a high likelihood of latent M. tuberculosis infection responded to several novel DosR regulon-encoded M. tuberculosis proteins. In addition to significant similarities in antigen recognition profiles between the three African population groups, there were also disparities, which may stem from genetic differences between both pathogen and host populations. Our findings have implications for the selection of potential TB vaccine candidates and for determining biosignatures of latent M. tuberculosis infection, active TB disease, and protective immunity. PMID:19553548

  6. Sedimentation survey of Lago Dos Bocas, Puerto Rico, June 1985

    USGS Publications Warehouse

    Quinones, Ferdinand; Melendez, Frank; Bonnet, Carlos

    1989-01-01

    A survey of the sedimentation of Dos Bocas reservoir, in central Puerto Rico, was conducted during July 1985. The survey showed that the capacity of the reservoir has declined from 30,420 acre-ft in 1942 to about 19,620 acre-ft. Sediment is accumulating in the reservoir at an average rate of about 251 acre-ft/yr, or about 0.83%/yr of the original capacity. The expected usable life of the reservoir on the basis of the long-term sedimentation rate is about 78 years. However, the sedimentation rate appears to have increased significantly since 1979. During the last six years, the average sedimentation rate has exceeded 600 acre-ft/yr. If this rate is maintained, the expected usable life of the reservoir would be about 32 years. (Author 's abstract)

  7. Document image archive transfer from DOS to UNIX

    NASA Technical Reports Server (NTRS)

    Hauser, Susan E.; Gill, Michael J.; Thoma, George R.

    1994-01-01

    An R&D division of the National Library of Medicine has developed a prototype system for automated document image delivery as an adjunct to the labor-intensive manual interlibrary loan service of the library. The document image archive is implemented by a PC controlled bank of optical disk drives which use 12 inch WORM platters containing bitmapped images of over 200,000 pages of medical journals. Following three years of routine operation which resulted in serving patrons with articles both by mail and fax, an effort is underway to relocate the storage environment from the DOS-based system to a UNIX-based jukebox whose magneto-optical erasable 5 1/4 inch platters hold the images. This paper describes the deficiencies of the current storage system, the design issues of modifying several modules in the system, the alternatives proposed and the tradeoffs involved.

  8. Test Less - Test Right

    DTIC Science & Technology

    2011-05-17

    Large software product development & testing – Extensive Database & Business Analytics experience  Co-authored 2 books on DB2 and Business ... Intelligence  Frequent speaker at Midrange system conferences  Strategic thinking and execution with completeness of visions http://www.linkedin.com/in

  9. Test plan :

    SciTech Connect

    Dwyer, Stephen F.

    2013-05-01

    This test plan is a document that provides a systematic approach to the planned testing of rooftop structures to determine their actual load carrying capacity. This document identifies typical tests to be performed, the responsible parties for testing, the general feature of the tests, the testing approach, test deliverables, testing schedule, monitoring requirements, and environmental and safety compliance.

  10. HIV Testing

    MedlinePlus

    ... antibody tests, combination or fourth-generation tests, and nucleic acid tests (NAT). HIV tests may be performed on ... retested 3 months after your possible exposure. A nucleic acid test (NAT) looks for HIV in the blood. ...

  11. Pinworm test

    MedlinePlus

    Oxyuriasis test; Enterobiasis test; Tape test ... diagnose this infection is to do a tape test. The best time to do this is in ... lay their eggs at night. Steps for the test are: Firmly press the sticky side of a ...

  12. Mycobacterium tuberculosis growth following aerobic expression of the DosR regulon.

    PubMed

    Minch, Kyle; Rustad, Tige; Sherman, David R

    2012-01-01

    The Mycobacterium tuberculosis regulator DosR is induced by multiple stimuli including hypoxia, nitric oxide and redox stress. Overlap of these stimuli with conditions thought to promote latency in infected patients fuels a model in which DosR regulon expression is correlated with bacteriostasis in vitro and a proxy for latency in vivo. Here, we find that inducing the DosR regulon to wildtype levels in aerobic, replicating M. tuberculosis does not alter bacterial growth kinetics. We conclude that DosR regulon expression alone is insufficient for bacterial latency, but rather is expressed during a range of growth states in a dynamic environment.

  13. Pharmacogenomic Testing

    MedlinePlus

    ... Primary care providers Specialists Getting covered Research Basic science research Research in people ... screening Diagnostic testing Direct-to-consumer genetic testing Newborn screening Pharmacogenomic testing ...

  14. Predictive Testing

    MedlinePlus

    ... Primary care providers Specialists Getting covered Research Basic science research Research in people ... screening Diagnostic testing Direct-to-consumer genetic testing Newborn screening Pharmacogenomic testing ...

  15. DosS Is required for the complete virulence of mycobacterium tuberculosis in mice with classical granulomatous lesions.

    PubMed

    Gautam, Uma S; McGillivray, Amanda; Mehra, Smriti; Didier, Peter J; Midkiff, Cecily C; Kissee, Ryan S; Golden, Nadia A; Alvarez, Xavier; Niu, Tianhua; Rengarajan, Jyothi; Sherman, David R; Kaushal, Deepak

    2015-06-01

    Mycobacterium tuberculosis (Mtb) must counter hypoxia within granulomas to persist. DosR, in concert with sensor kinases DosS and DosT, regulates the response to hypoxia. Yet Mtb lacking functional DosR colonize the lungs of C57Bl/6 mice, presumably owing to the lack of organized lesions with sufficient hypoxia in that model. We compared the phenotype of the Δ-dosR, Δ-dosS, and Δ-dosT mutants to Mtb using C3HeB/FeJ mice, an alternate mouse model where lesions develop hypoxia. C3HeB/FeJ mice were infected via aerosol. The progression of infection was analyzed by tissue bacterial burden and histopathology. A measure of the comparative global immune responses was also analyzed. Although Δ-dosR and Δ-dosT grew comparably to wild-type Mtb, Δ-dosS exhibited a significant defect in bacterial burden and pathology in vivo, accompanied by ablated proinflammatory response. Δ-dosS retained the ability to induce DosR. The Δ-dosS mutant was also attenuated in murine macrophages ex vivo, with evidence of reduced expression of the proinflammatory signature. Our results show that DosS, but not DosR and DosT, is required by Mtb to survive in C3HeB/FeJ mice. The attenuation of Δ-dosS is not due to its inability to induce the DosR regulon, nor is it a result of the accumulation of hypoxia. That the in vivo growth restriction of Δ-dosS could be mimicked ex vivo suggested sensitivity to macrophage oxidative burst. Anoxic caseous centers within tuberculosis lesions eventually progress to cavities. Our results provide greater insight into the molecular mechanisms of Mtb persistence within host lungs.

  16. Trypsinogen Test

    MedlinePlus

    ... name: Immunoreactive Trypsinogen Related tests: Chymotrypsin ; Sweat Test ; CF Gene Mutation Testing All content on Lab Tests ... of some newborn screening programs to screen for cystic fibrosis (CF) . It may be used in conjunction with ...

  17. Pregnancy Tests

    MedlinePlus

    ... Us Home A-Z Health Topics Pregnancy tests Pregnancy tests > A-Z Health Topics Pregnancy test fact ... To receive Publications email updates Enter email Submit Pregnancy tests If you think you may be pregnant , ...

  18. Ham test

    MedlinePlus

    Acid hemolysin test; Paroxysmal nocturnal hemoglobinuria - Ham test; PNH - Ham test ... BJ. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures . 6th ed. Philadelphia, PA: Elsevier ...

  19. America Inc.: John Dos Passos'"USA" as Professional Writing Textbook.

    ERIC Educational Resources Information Center

    Di Renzo, Anthony

    While working as a special consultant for General Mills in 1948, John Dos Passos wrote a report explaining the latest scientific research and technological advancements and how the postwar economy was affecting General Mills and the cereal market. General Mills, using a real writer for a corporate freelance, profited from Dos Passos' expertise and…

  20. Unique Regulation of the DosR Regulon in the Beijing Lineage of Mycobacterium tuberculosis.

    PubMed

    Domenech, Pilar; Zou, Jason; Averback, Alexandra; Syed, Nishath; Curtis, Daniele; Donato, Samuel; Reed, Michael B

    2017-01-15

    The DosR regulon, a set of 48 genes normally expressed in Mycobacterium tuberculosis under conditions that inhibit aerobic respiration, is controlled via the DosR-DosS/DosT two-component system. While the regulon requires induction in most M. tuberculosis isolates, for members of the Beijing lineage, its expression is uncoupled from the need for signaling. In our attempts to understand the mechanistic basis for this uncoupling in the Beijing background, we previously reported the identification of two synonymous single-nucleotide polymorphisms (SNPs) within the adjacent Rv3134c gene. In the present study, we have interrogated the impact of these SNPs on dosR expression in wild-type strains, as well as a range of dosR-dosS-dosT mutants, for both Beijing and non-Beijing M. tuberculosis backgrounds. In this manner, we have unequivocally determined that the C601T dosR promoter SNP is the sole requirement for the dramatic shift in the pattern of DosR regulon expression seen in this globally important lineage. Interestingly, we also show that DosT is completely nonfunctional within these strains. Thus, a complex series of evolutionary steps has led to the present-day Beijing DosR phenotype that, in turn, potentially confers a fitness advantage in the face of some form of host-associated selective pressure. Mycobacterium tuberculosis strains of the Beijing lineage have been described as being of enhanced virulence compared to other lineages, and in certain regions, they are associated with the dramatic spread of multidrug-resistant tuberculosis (TB). In terms of trying to understand the functional basis for these broad epidemiological phenomena, it is interesting that, in contrast to the other major lineages, the Beijing strains all constitutively overexpress members of the DosR regulon. Here, we identify the mutational events that led to the evolution of this unique phenotype. In addition, our work highlights the fact that important phenotypic differences exist between

  1. Thermomechanical Multiaxial Fatigue Testing Capability Developed

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Structural components in aeronautical gas turbine engines typically experience multiaxial states of stress under nonisothermal conditions. To estimate the durability of the various components in the engine, one must characterize the cyclic deformation and fatigue behavior of the materials used under thermal and complex mechanical loading conditions. To this end, a testing protocol and associated test control software were developed at the NASA Lewis Research Center for thermomechanical axial-torsional fatigue tests. These tests are to be performed on thin-walled, tubular specimens fabricated from the cobalt-based superalloy Haynes 188. The software is written in C and runs on an MS-DOS based microcomputer.

  2. The DosR regulon of M. tuberculosis and antibacterial tolerance

    PubMed Central

    Bartek, I.L.; Rutherford, R.; Gruppo, V.; Morton, R.A.; Morris, R.P.; Klein, M.R.; Visconti, K.C.; Ryan, G.J.; Schoolnik, G.K.; Lenaerts, A.; Voskuil, M.I.

    2009-01-01

    Summary Adaptation of Mycobacterium tuberculosis to an anaerobic dormant state that is tolerant to several antibacterials is mediated largely by a set of highly expressed genes controlled by DosR. A DosR mutant was constructed to investigate whether the DosR regulon is involved in antibacterial tolerance. We demonstrate that induction of the regulon is not required for drug tolerance either in vivo during a mouse infection or in vitro during anaerobic dormancy. Thus, drug tolerance observed in these models is due to other mechanisms such as the bacilli simply being in a non-replicating or low metabolic state. Our data also demonstrate that the DosR regulon is not essential for virulence during chronic murine infection. However, decreased lung pathology was observed in the DosR mutant. We also show that the DosR regulon genes are more highly conserved in environmental mycobacteria, than in pathogenic mycobacteria lacking a latent phase or environmental reservoir. It is possible that the DosR regulon could contribute to drug tolerance in human infections; however, it is not the only mechanism and not the primary mechanism for tolerance during a mouse infection. These data suggest that the regulon evolved not for pathogenesis or drug tolerance but for adaptation to anaerobic conditions in the environment and has been adapted by M. tuberculosis for survival during latent infection. PMID:19577518

  3. Laboratory Tests

    MedlinePlus

    Laboratory tests check a sample of your blood, urine, or body tissues. A technician or your doctor ... compare your results to results from previous tests. Laboratory tests are often part of a routine checkup ...

  4. Susceptibility Testing

    MedlinePlus

    ... Testing ; MRSA ; Fungal Tests ; Sputum Culture ; Stool Culture ; Gram Stain ; Body Fluid Analysis ; Pleural Fluid Analysis ; Pericardial ... to Get Tested? As follow up to a positive bacterial or fungal culture ; when you have an ...

  5. Lipase Test

    MedlinePlus

    ... known as: LPS Formal name: Lipase Related tests: Amylase , Trypsin , Trypsinogen At a Glance Test Sample The ... lipase is most often used, along with an amylase test , to help diagnose and monitor acute pancreatitis . ...

  6. Hardness testing

    SciTech Connect

    Not Available

    1987-01-01

    This technical manual is a handbook dealing with all aspects of hardness testing. Every hardness testing method is fully covered, from Rockwell to ultrasonic hardness testing. Specific hardness testing problems are also discussed, and methods are offered for many applications. One chapter examines how to select the correct hardness testing method. A directory of manufacturers, distributors and suppliers of hardness testing equipment and supplies in the United States and Canada is also included. The book consist of eight chapters and an appendix. It discusses common concepts of hardness, and the theories and methods of hardness testing. Coverage includes specific hardness testing methods - Brinell, Rockwell, Vickers, and microhardness testing; and other hardness testing methods, such as scleroscope, ultrasonic, scratch and file testing, and hardness evaluation by eddy current testing.

  7. Test Madness

    ERIC Educational Resources Information Center

    Hedrick, Wanda B., Ed.

    2007-01-01

    There's accountability and then there's the testing craze an iatrogenic practice that undermines real learning. Hedrick documents the negative effects of testing, giving teachers another weapon in their arsenal against mindless preparation for high-stakes tests.

  8. Thyroid Tests

    MedlinePlus

    ... the thyroid, a computerized tomography (CT) scan, or nuclear medicine tests, to diagnose and find the cause ... is having the scan for other health problems. Nuclear medicine tests. Nuclear medicine tests of the thyroid ...

  9. Test Madness

    ERIC Educational Resources Information Center

    Hedrick, Wanda B., Ed.

    2007-01-01

    There's accountability and then there's the testing craze an iatrogenic practice that undermines real learning. Hedrick documents the negative effects of testing, giving teachers another weapon in their arsenal against mindless preparation for high-stakes tests.

  10. Stool Tests

    MedlinePlus

    ... For Kids For Parents MORE ON THIS TOPIC E. Coli Giardiasis Yersiniosis Stool Test: Bacteria Culture Stool Test: ... Stool Test: Ova and Parasites (O&P) Diarrhea E. Coli Contact Us Print Resources Send to a Friend ...

  11. Historic tests

    NASA Image and Video Library

    2012-08-16

    Two large-engine tests were conducted simultaneously for the first time at Stennis Space Center on Aug. 16. A plume on the left indicates a test on the facility's E-1 Test Stand. On the right, a finger of fire indicates a test under way on the A-1 Test Stand. In another first, both tests were conducted by female engineers. The image was taken from atop the facility's A-2 Test Stand, offering a panoramic view that includes the new A-3 Test Stand under construction to the left.

  12. CSG test

    NASA Image and Video Library

    2011-09-15

    E-2 Test Stand team members at Stennis Space Center conducted their first series of tests on a three-module chemical steam generator unit Sept. 15. All three modules successfully fired during the tests. The chemical steam generator is a critical component for the A-3 Test Stand under construction at Stennis.

  13. Testing Services

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Trace Laboratories is an independent testing laboratory specializing in testing printed circuit boards, automotive products and military hardware. Technical information from NASA Tech Briefs and two subsequent JPL Technical Support packages have assisted Trace in testing surface insulation resistance on printed circuit board materials. Testing time was reduced and customer service was improved because of Jet Propulsion Laboratory technical support packages.

  14. RPR test

    MedlinePlus

    ... more specific test for syphilis, such as FTA-ABS . The FTA-ABS test will help distinguish between syphilis and other ... Elsevier Saunders; 2015:chap 239. Read More FTA-ABS test VDRL test Review Date 9/10/2015 ...

  15. Composite Testing

    DTIC Science & Technology

    2007-01-01

    Impact Test Matrix for Each Team Impact Tests Qty. Reqd. Per Team Dimensions Steel- GFRP Hybrid Specimen 3 40” x 12” GFRP Control...5: Tension Test Specimen Details Table 2: Tension Test Matrix for Each Team Tension Tests Qty. Reqd. Per Team Dimensions Steel- GFRP Hybrid...Specimen 6 12” L x 1-2” W GFRP Control Specimen 3 12” L x 1-2” W Numerical Modelling A detailed numerical model

  16. The Rio dos Sinos watershed: an economic and social space and its interface with environmental status.

    PubMed

    Figueiredo, J A S; Drumm, E; Rodrigues, M A S; Spilki, F R

    2010-12-01

    The Rio dos Sinos watershed is located in the eastern region of the state of Rio Grande do Sul and includes 32 municipalities. These municipalities develop several different economic activities such as farming and livestock along the 190 km length of the Rio dos Sinos, one of the rivers with the worst quality of water in Brazil. The region is also characterised by growing urbanisation and heavy industrialisation. The main economic activity is the leather and footwear industry. This diversified land use puts the Rio dos Sinos watershed at risk of a wide range of potential environmental impacts. The aim of the present article is to discuss the socioeconomic process currently implemented in the Rio dos Sinos watershed and the effect of these human actions on the environmental quality described throughout this special issue of the Brazilian Journal of Biology.

  17. DosR-regulon genes induction in Mycobacterium bovis BCG under aerobic conditions.

    PubMed

    Flores Valdez, Mario Alberto; Schoolnik, Gary K

    2010-05-01

    In this report we demonstrated that under aerobic conditions, Mycobacterium bovis BCG expressing an hsp60-driven second copy of the hypoxia-related transcriptional regulator DosR increased 2-fold or greater the expression of 38 out of the 48 genes belonging to the DosR regulon, including the latency antigens Rv1733c, Rv2029, Rv2627, and Rv2628. Expression of DosR under these conditions slightly delayed in vitro growth, but did not promote a non-replicating state as opposed to microaerobic and hypoxic adaptation. Our results suggest BCG producing DosR can be cultured under standard in vitro conditions, allowing evaluation of this strain as a latency-specific vaccine candidate.

  18. Linking Social Media Reports to Network Indicators of DoS Attacks

    DTIC Science & Technology

    2015-02-15

    reporting in fast-paced social media such as Twitter, but these reports are rarely linked to quantiable network behavior. A data set of network-based...FEB 2015 2. REPORT TYPE N/A 3. DATES COVERED 4. TITLE AND SUBTITLE Linking Social Media Reports to Network Indicators of DoS Attacks 5a...Random sample of 30 (D, E) pairs yielding 21 unique entities (E) Linking Social Media Reports to Network Indicators of DoS Attacks Evan Wright

  19. Potassium test

    MedlinePlus

    ... this page: //medlineplus.gov/ency/article/003484.htm Potassium test To use the sharing features on this ... enable JavaScript. This test measures the amount of potassium in the fluid portion (serum) of the blood. ...

  20. Triglycerides Test

    MedlinePlus

    ... Cholesterol ; LDL Cholesterol ; Direct LDL Cholesterol ; VLDL Cholesterol ; Lipid Profile ; Cardiac Risk Assessment All content on Lab Tests ... tests for triglycerides are usually part of a lipid profile that is used to help identify an individual's ...

  1. Lead Test

    MedlinePlus

    ... the condition. Children should also be assessed for iron deficiency and general nutrition consistent with AAP guidelines. BLLs ... raised blood lead concentrations should be tested for iron deficiency . Each person eliminates lead differently. Thus, laboratory tests ...

  2. HPV Test

    MedlinePlus

    ... test for wider range of HPV types. 2009 Mar 13. US Food and Drug Administration. Available online ... approves two DNA tests to detect HPV. 2009 Mar 17. Infectious Disease News. Available online at http:// ...

  3. VDRL test

    MedlinePlus

    ... laboratory test Images Blood test References LaSala PR, Smith MB. Spirochete infections. In: McPherson RA, Pincus MR, ... commercial use must be authorized in writing by ADAM Health Solutions. About MedlinePlus Site Map FAQs Customer ...

  4. Gonorrhea Test

    MedlinePlus

    ... Amplification Test (NAAT); Neisseria gonorrhoeae Culture; Neisseria gonorrhoeae Gram Stain; Neisseria gonorrhoeae DNA Probe Related tests: Chlamydia ... a clinic or healthcare provider's office is the gram stain , which allows the healthcare practitioner to look ...

  5. Syphilis Test

    MedlinePlus

    ... Treponemal Antibody Absorption Test; FTA-ABS; Treponema pallidum Particle Agglutination Assay; TPPA; Microhemagglutination Assay; MHA-TP; Darkfield ... to help diagnose neurosyphilis. TP-PA ( T. pallidum particle agglutination assay)--this test is sometimes performed instead ...

  6. Chlamydia Testing

    MedlinePlus

    ... GC STD Panel Formal name: Chlamydia trachomatis by Nucleic Acid Amplification Test (NAAT); Chlamydia trachomatis Culture; Chlamydia trachomatis ... months after a person has completed treatment. The nucleic acid amplification test (NAAT) is the recommended method of ...

  7. String test

    MedlinePlus

    Duodenal parasites test; Giardia - string test ... may be a sign parasite infection such as giardia . ... Elsevier; 2017:chap 58. Hill DR, Nash TE. Giardia lamblia. In: Bennett JE, Dolin R, Blaser MJ, ...

  8. Genomic Testing

    MedlinePlus

    ... Prevention (EGAPP™) In 2004, the Centers for Disease Control and Prevention launched the EGAPP initiative to establish and test a systematic, evidence-based process for evaluating genetic tests and other applications ...

  9. Magnesium Test

    MedlinePlus

    ... Mag Formal name: Magnesium Related tests: Calcium , Potassium , Phosphorus , PTH , Vitamin D At a Glance Test Sample ... checked to help diagnose problems with calcium, potassium, phosphorus , and/or parathyroid hormone – another component of calcium ...

  10. PTH Test

    MedlinePlus

    ... Parathormone Formal name: Parathyroid Hormone Related tests: Calcium ; Phosphorus ; Magnesium ; Vitamin D At a Glance Test Sample ... low calcium level further by measuring vitamin D , phosphorus , and magnesium levels. If calcium levels are low ...

  11. DHEAS Test

    MedlinePlus

    ... DHEA Sulfate Formal name: Dehydroepiandrosterone Sulfate Related tests: Testosterone ; ACTH ; FSH ; LH ; Prolactin ; Estrogens ; SHBG ; 17-Hydroxyprogesterone ; ... sulfate (DHEAS) is ordered along with tests for testosterone and several other male hormones ( androgens ) to: Evaluate ...

  12. Toxoplasmosis Testing

    MedlinePlus

    ... name: Toxoplasma gondii Antibodies, IgG, IgM; Toxoplasma gondii Molecular Detection by PCR Related tests: TORCH ; CSF Analysis ; ... for: toxoplasmosis, rubella, cytomegalovirus, and herpes simplex virus. Molecular detection Molecular testing may be performed to detect ...

  13. AMA Test

    MedlinePlus

    ... Liver/Kidney Microsomal Antibody , ALP , ALT , Liver Panel , Smooth Muscle Antibody , ANA All content on Lab Tests ... PBC) . Other tests that may be ordered include: Smooth muscle antibodies (SMA) Antinuclear antibodies (ANA) Alkaline phosphatase ( ...

  14. Glucose Tests

    MedlinePlus

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Glucose Tests Share this page: Was this page helpful? ... the meaning of other test results. Fasting Blood Glucose Glucose Level Indication From 70 to 99 mg/ ...

  15. Seismic testing

    SciTech Connect

    Knott, S.

    1981-10-01

    Electric Power Research Institute (EPRI) research programs in seismic testing to improve earthquake design guidelines lowers the safety-design costs of nuclear power plants. Explosive tests that simulate earthquakes help to determine how structures respond to ground motion and how these are related to soil and geologic conditions at a specific site. Explosive tests develop data for simulation using several computer codes. Photographs illustrate testing techniques. 6 references. (DCK)

  16. Runflat Testing

    DTIC Science & Technology

    2015-09-09

    5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHORS 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING... CONDITIONS ....................................... 3 3.1 Test Selection ........................................................................ 3...7 4.7 Conditions for Ending Test ................................................... 7 4.8 Post-test

  17. Teacher Testing.

    ERIC Educational Resources Information Center

    Dunn, Judy; And Others

    1987-01-01

    A one-page introduction is followed by summaries of articles and documents on teacher competency testing. George F. Madaus argues that, although tests serve some useful functions, treating them as a major mechanism for reforming education is questionable. Peter A. Garcia examines the negative impact of testing on minority teachers and minorities…

  18. RSV Test

    MedlinePlus

    ... to a laboratory for a more sensitive testing method. Results of these RSV tests are usually available the same day. RSV RT-PCR —this is a molecular test that detects the genetic material of the virus. It is generally more ...

  19. Tested Demonstrations.

    ERIC Educational Resources Information Center

    Gilbert, George L., Ed.

    1988-01-01

    Describes three flame test demonstrations including "Student-Presented Demonstrations on the Colors of Transition Metal Complexes,""A Flame Test Demonstration Device," and "Vivid Flame Tests." Preparation and procedures are discussed. Included in the first demonstration is an evaluation scheme for grading student…

  20. Analytical testing

    NASA Technical Reports Server (NTRS)

    Flannelly, W. G.; Fabunmi, J. A.; Nagy, E. J.

    1981-01-01

    Analytical methods for combining flight acceleration and strain data with shake test mobility data to predict the effects of structural changes on flight vibrations and strains are presented. This integration of structural dynamic analysis with flight performance is referred to as analytical testing. The objective of this methodology is to analytically estimate the results of flight testing contemplated structural changes with minimum flying and change trials. The category of changes to the aircraft includes mass, stiffness, absorbers, isolators, and active suppressors. Examples of applying the analytical testing methodology using flight test and shake test data measured on an AH-1G helicopter are included. The techniques and procedures for vibration testing and modal analysis are also described.

  1. Dos, a heme-binding PAS protein from Escherichia coli, is a direct oxygen sensor.

    PubMed

    Delgado-Nixon, V M; Gonzalez, G; Gilles-Gonzalez, M A

    2000-03-14

    A direct sensor of O(2), the Dos protein, has been found in Escherichia coli. Previously, the only biological sensors known to respond to O(2) by direct and reversible binding were the FixL proteins of Rhizobia. A heme-binding region in Dos is 60% homologous to the O(2)-sensing PAS domain of the FixL protein, but the remainder of Dos does not resemble FixL. Specifically, the C-terminal domain of Dos, presumed to be a regulatory partner that couples to its heme-binding domain, is not a histidine kinase but more closely resembles a phosphodiesterase. The absorption spectra of Dos indicate that both axial positions of the heme iron are coordinated to side chains of the protein. Nevertheless, O(2) and CO bind to Dos with K(d) values of 13 and 10 microM, respectively, indicating a strong discrimination against CO binding. Association rate constants for binding of O(2) (3 mM(-)(1) s(-)(1)), CO (1 mM(-)(1) s(-)(1)) and even NO (2 mM(-)(1) s(-)(1)) are extraordinarily low and very similar. Displacement of an endogenous ligand, probably Met 95, from the heme iron in Dos triggers a conformational change that alters the activity of the enzymatic domain. This sensing mechanism differs from that of FixL but resembles that of the CO sensor CooA of Rhodospirillum rubrum. Overall the results provide evidence for a heme-binding subgroup of PAS-domain proteins whose working range, signaling mechanisms, and regulatory partners can vary considerably.

  2. Non-invasive tissue temperature measurements based on quantitative diffuse optical spectroscopy (DOS) of water.

    PubMed

    Chung, S H; Cerussi, A E; Merritt, S I; Ruth, J; Tromberg, B J

    2010-07-07

    We describe the development of a non-invasive method for quantitative tissue temperature measurements using Broadband diffuse optical spectroscopy (DOS). Our approach is based on well-characterized opposing shifts in near-infrared (NIR) water absorption spectra that appear with temperature and macromolecular binding state. Unlike conventional reflectance methods, DOS is used to generate scattering-corrected tissue water absorption spectra. This allows us to separate the macromolecular bound water contribution from the thermally induced spectral shift using the temperature isosbestic point at 996 nm. The method was validated in intralipid tissue phantoms by correlating DOS with thermistor measurements (R=0.96) with a difference of 1.1+/-0.91 degrees C over a range of 28-48 degrees C. Once validated, thermal and hemodynamic (i.e. oxy- and deoxy-hemoglobin concentration) changes were measured simultaneously and continuously in human subjects (forearm) during mild cold stress. DOS-measured arm temperatures were consistent with previously reported invasive deep tissue temperature studies. These results suggest that DOS can be used for non-invasive, co-registered measurements of absolute temperature and hemoglobin parameters in thick tissues, a potentially important approach for optimizing thermal diagnostics and therapeutics.

  3. Non-invasive tissue temperature measurements based on quantitative diffuse optical spectroscopy (DOS) of water

    PubMed Central

    Chung, SH; Cerussi, AE; Merritt, SI; Ruth, J; Tromberg, BJ

    2012-01-01

    We describe the development of a non-invasive method for quantitative tissue temperature measurements using Broadband diffuse optical spectroscopy (DOS). Our approach is based on well-characterized opposing shifts in near-infrared (NIR) water absorption spectra that appear with temperature and macromolecular binding state. Unlike conventional reflectance methods, DOS is used to generate scattering-corrected tissue water absorption spectra. This allows us to separate the macromolecular bound water contribution from the thermally induced spectral shift using the temperature isosbestic point at 996 nm. The method was validated in intralipid tissue phantoms by correlating DOS with thermistor measurements (R = 0.96) with a difference of 1.1 ± 0.91 °C over a range of 28–48 °C. Once validated, thermal and hemodynamic (i.e. oxy- and deoxy-hemoglobin concentration) changes were measured simultaneously and continuously in human subjects (forearm) during mild cold stress. DOS-measured arm temperatures were consistent with previously reported invasive deep tissue temperature studies. These results suggest that DOS can be used for non-invasive, co-registered measurements of absolute temperature and hemoglobin parameters in thick tissues, a potentially important approach for optimizing thermal diagnostics and therapeutics. PMID:20551502

  4. Testing Relativity

    NASA Astrophysics Data System (ADS)

    Hentschel, Klaus

    in chapter 7 of this book, Klaus Hentschel first reviews Einstein's general attitude towards experiments, much more positive than generally believed, then reviews experimental tests of both special and general relativity, focussing on tests during Einstein's lifetime, incl. gravitational redshift, light deflection, perihelion motion. Among the non-standard tests, time-delay measurements, gyroscope experiments, the Nordtvedt effect, and gravitational waves are also discussed.

  5. Urodynamic Testing

    MedlinePlus

    ... urinary tract infections Urodynamic tests range from simple observation to precise measurements using sophisticated instruments. For simple observation, a health care provider may record the length ...

  6. Performance tests.

    PubMed Central

    Wetherell, A

    1996-01-01

    This paper discusses the use of psychological performance tests to assess the effects of environmental stressors. The large number and the variety of performance tests are illustrated, and the differences between performance tests and other psychological tests are described in terms of their design, construction, use, and purpose. The stressor emphasis is on the effects of drugs since that is where most performance tests have found their main application, although other stressors, e.g., fatigue, toxic chemicals, are mentioned where appropriate. Diazepam is used as an example. There is no particular performance emphasis since the tests are intended to have wide applicability. However, vehicle-driving performance is discussed because it has been the subject of a great deal of research and is probably one of the most important areas of application. Performance tests are discussed in terms of the four main underlying models--factor analysis, general information processing, multiple resource and strategy models, and processing-stage models--and in terms of their psychometric properties--sensitivity, reliability, and content, criterion, construct, and face validity. Some test taxonomies are presented. Standardization is also discussed with reference to the reaction time, mathematical processing, memory search, spatial processing, unstable tracking, verbal processing, and dual task tests used in the AGARD STRES battery. Some comments on measurement strengths and appropriate study designs and methods are included. PMID:9182033

  7. IQ testing

    MedlinePlus

    ... Preschool and Primary Scale of Intelligence Stanford-Binet Intelligence Scales Differential Ability Scales Kaufman Assessment Battery for Children Functioning abilities that are measured by these tests ...

  8. Diffuser Test

    NASA Image and Video Library

    2007-09-13

    Tests begun at Stennis Space Center's E Complex Sept. 13 evaluated a liquid oxygen lead for engine start performance, part of the A-3 Test Facility Subscale Diffuser Risk Mitigation Project at SSC's E-3 Test Facility. Phase 1 of the subscale diffuser project, completed Sept. 24, was a series of 18 hot-fire tests using a 1,000-pound liquid oxygen and gaseous hydrogen thruster to verify maximum duration and repeatability for steam generation supporting the A-3 Test Stand project. The thruster is a stand-in for NASA's developing J-2X engine, to validate a 6 percent scale version of A-3's exhaust diffuser. Testing the J-2X at altitude conditions requires an enormous diffuser. Engineers will generate nearly 4,600 pounds per second of steam to reduce pressure inside A-3's test cell to simulate altitude conditions. A-3's exhaust diffuser has to be able to withstand regulated pressure, temperatures and the safe discharge of the steam produced during those tests. Before the real thing is built, engineers hope to work out any issues on the miniature version. Phase 2 testing is scheduled to begin this month.

  9. Rubella Test

    MedlinePlus

    ... be limited. Home Visit Global Sites Search Help? Advertisement Proceeds from website advertising help sustain Lab Tests ... for trustworthy health information. Verify Compliance . Produced by Advertisement

  10. Malnutrition Tests

    MedlinePlus

    ... be limited. Home Visit Global Sites Search Help? Advertisement Proceeds from website advertising help sustain Lab Tests ... for trustworthy health information. Verify Compliance . Produced by Advertisement

  11. Test Review.

    ERIC Educational Resources Information Center

    Cummins, R. Porter

    1981-01-01

    Reviews the Nelson-Denny Reading Test (Forms E and F) and finds it an easy to use and valid norm-referenced survey test for determining the level of student reading achievement, assessing individual differences, and deriving group means. (AEA)

  12. Strength Testing.

    ERIC Educational Resources Information Center

    Londeree, Ben R.

    1981-01-01

    Postural deviations resulting from strength and flexibility imbalances include swayback, scoliosis, and rounded shoulders. Screening tests are one method for identifying strength problems. Tests for the evaluation of postural problems are described, and exercises are presented for the strengthening of muscles. (JN)

  13. Chymotrypsin Test

    MedlinePlus

    ... absorption of nutrients. It typically occurs as a result of progressive pancreatic damage. ^ Back to top When is it ordered? A chymotrypsin test may ... inability to gain weight, delayed growth ^ Back to top What does the test result mean? A positive result, indicating the presence of ...

  14. Testing Speaking.

    ERIC Educational Resources Information Center

    Kitao, S. Kathleen; Kitao, Kenji

    Speaking a second language is probably the most difficult skill to test in that it involves a combination of skills that may have no correlation with each other, and which do not lend themselves to objective testing. In addition, what can be understood is a function of the listener's background and ability as well as those of the speaker. Another…

  15. Microalbumin Test

    MedlinePlus

    ... test to detect very small levels of a blood protein (albumin) in your urine. A microalbumin test is used ... kidney disease. Healthy kidneys filter waste from your blood and hang on to the healthy components, including proteins such as albumin. Kidney damage can cause proteins to leak through ...

  16. Testing Behavior.

    ERIC Educational Resources Information Center

    Zirkel, Perry A.

    2003-01-01

    Analyzes Georgia high-stakes testing case involving administrative law judge's recommendation (subsequently approved) that fifth-grade science teacher's teaching certificate be suspended for giving his students pretest copies of the Iowa Tests of Basic Skills. Suggests No Child Left Behind Act will spawn similar litigation in the future. (PKP)

  17. Turing's Test

    NASA Astrophysics Data System (ADS)

    Copeland, Jack; Proudfoot, Diane

    We set the Turing Test in the historical context of the development of machine intelligence, describe the different forms of the test and its rationale, and counter common misinterpretations and objections. Recently published material by Turing casts fresh light on his thinking.

  18. Strength Testing.

    ERIC Educational Resources Information Center

    Londeree, Ben R.

    1981-01-01

    Postural deviations resulting from strength and flexibility imbalances include swayback, scoliosis, and rounded shoulders. Screening tests are one method for identifying strength problems. Tests for the evaluation of postural problems are described, and exercises are presented for the strengthening of muscles. (JN)

  19. Exercise beyond menopause: Dos and Don’ts

    PubMed Central

    Mishra, Nalini; Mishra, V. N.; Devanshi

    2011-01-01

    With a significant number of women belonging to the status of menopause and beyond, it is imperative to plan a comprehensive health program for them, including lifestyle modifications. Exercise is an integral part of the strategy. The benefits are many, most important being maintenance of muscle mass and thereby the bone mass and strength. The exercise program for postmenopausal women should include the endurance exercise (aerobic), strength exercise and balance exercise; it should aim for two hours and 30 minutes of moderate aerobic activity each week. Every woman should be aware of her target heart rate range and should track the intensity of exercise employing the talk test. Other deep breathing, yoga and stretching exercises can help to manage the stress of life and menopause-related symptoms. Exercises for women with osteoporosis should not include high impact aerobics or activities in which a fall is likely. The women and the treating medical practitioner should also be aware of the warning symptoms and contraindications regarding exercise prescription in women beyond menopause. The role of exercise in hot flashes, however, remains inconclusive. Overall, exercising beyond menopause is the only noncontroversial and beneficial aspect of lifestyle modification and must be opted by all. PMID:22408332

  20. Documenting 35 years of land cover change: Lago Cachet Dos drainage, Chile

    USGS Publications Warehouse

    Friesen, Beverly A.; Nimick, David A.; Mcgrath, Daniel; Cole, Christopher J.; Wilson, Earl M.; Noble, Suzanne M.; Fahey, Mark J.; Leidich, Jonathan; O'Kuinghttons Villena, Jorge I.

    2015-01-01

    The U.S. Geological Survey (USGS) Special Applications Science Center is monitoring temporal changes at the Colonia Glacier and Lago Cachet Dos, Northern Patagonia Icefield of southern Chile. This location is one of the newest international sites in the USGS Global Fiducial Program (GFP)—a program which provides systematic monitoring of dynamic and environmentally critical areas with high-resolution imagery (http://gfp.usgs.gov/). In 2008, Lago Cachet Dos began experiencing glacial lake outburst floods (GLOFs) during which the entire pool of water (about 200 million cubic meters) rapidly drains from the lake and flows south-southeast through the Colonia Glacier. These catastrophic events cause massive erosion of valley-fill deposits and consequent upstream expansion of Lago Cachet Dos towards Lago Cachet Uno.  Panchromatic and multispectral images for 1979, 2007, and 2014 highlight the dramatic changes that have occurred at this site over a 35-year period. The lake was smallest in 1979, when the Colonia Glacier was at its maximum extent during the study period. Between 1979 and 2007, the glacier shrank causing an increase in the surface area of the lake. The size of the lake increased substantially, from 2.98 square kilometers (km2) in 1979 to 4.41 km2 in 2014, primarily due to erosion of valley-fill deposits upstream of its northern edge by the 15 GLOFs that occurred between April 2008 and February 2014. Ongoing studies of the Colonia Glacier and Lago Cachet Dos are focused on providing real-time monitoring of Lago Cachet Dos lake levels, understanding the history of advances and retreats of the Colonia Glacier, and determining the physical mechanisms and hazards associated with the GLOFs that come from Lago Cachet Dos.

  1. WE-E-BRB-10: DosCheck - an Electronic Chart Checking Tool for Dosimetrists.

    PubMed

    Yang, D; Wu, Y; Yaddanapudi, S; Moore, K; Pierbuxg, B; Brame, S; Mutic, S

    2012-06-01

    In addition to treatment planning, dosimetrists have to prepare documentation and manually enter data in treatment management system (TMS) which did not transfer or setup automatically. The required documents and data are dependent on the disease site, treatment machine and clinical workflow. Errors and inconsistencies can cause redundant work, treatment delays and potentially treatment errors. To address these issues, an electronic checking software tool, DosCheck was clinically implemented to check the existence of necessary documentations and the integrity of manually-entered data. The purpose of this software is to reduce the frequency of human errors and to improve efficiency. DosCheck reads data and documents from 1) TMS, 2) Pinnacle TPS, and 3) DICOM plan files stored in a DICOM-RT PACS. It processes documents in Word and PDF format, treatment plan data in Pinnacle native format and DICOM format, and Mosaiq data in database records. The software cross-checks data accuracy and consistency by following rules that are pre-defined according to the clinical requirements and treatment sties. It interacts with dosimetrists and presents instantaneous results via graphical user interface. DosCheck has been implemented in C#. It performs a full check for a patient with 20 seconds. It has been clinically commissioned and is used daily by all dosimetrists at our institution. Retrospective analysis shows that DosCheck identifies 30% to 40% of previously reported dosimetrist human errors. Additional ∼30% errors are checked by other tools that could be integrated DosCheck in the near future. As an electronic data checking tool, DosCheck can obtain and process data and documents from multiple clinical computer systems in the radiation oncology department, and perform checks according to clinical rules. It is able to improve the accuracy and efficiency of clinical data and document process, and therefore to reduce any potential inconsistencies and errors. © 2012 American

  2. Contextual variation in young children's observed disruptive behavior on the DB-DOS: implications for early identification.

    PubMed

    Petitclerc, Amélie; Briggs-Gowan, Margaret J; Estabrook, Ryne; Burns, James L; Anderson, Erica L; McCarthy, Kimberly J; Wakschlag, Lauren S

    2015-09-01

    Contextual variation in child disruptive behavior is well documented but remains poorly understood. We first examine how variation in observed disruptive behavior across interactional contexts is associated with maternal reports of contextual variation in oppositional-defiant behavior and functional impairment. Second, we test whether child inhibitory control explains the magnitude of contextual variation in observed disruptive behavior. Participants are 497 young children (mean age = 4 years, 11 months) from a subsample of the MAPS, a sociodemographically diverse pediatric sample, enriched for risk of disruptive behavior. Observed anger modulation and behavioral regulation problems were coded on the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS) during interactions with parent and examiner. Oppositional-defiant behavior, and impairment in relationships, with parents and nonparental adults, were measured with the Preschool Age Psychiatric Assessment (PAPA) interview with the mother. Functional impairment in the home and out-and-about was assessed with the Family Life Impairment Scale (FLIS), and expulsion from child care/school was measured with the baseline survey and FLIS. Observed disruptive behavior on the DB-DOS Parent Context was associated with oppositional-defiant behavior with parents, and with impairment at home and out-and-about. Observed disruptive behavior with the Examiner was associated with oppositional-defiant behavior with both parents and nonparental adults, impairment in relationships with nonparental adults, and child care/school expulsion. Differences in observed disruptive behavior in the Parent versus Examiner Contexts was related to the differences in maternal reports of oppositional-defiant behavior with parents versus nonparental adults. Children with larger decreases in disruptive behavior from Parent to Examiner Context had better inhibitory control and fewer attention-deficit/hyperactivity disorder symptoms. The DB-DOS

  3. Contextual variation in young children’s observed disruptive behavior on the DB-DOS: implications for early identification

    PubMed Central

    Petitclerc, Amélie; Briggs-Gowan, Margaret J.; Estabrook, Ryne; Burns, James L.; Anderson, Erica L.; McCarthy, Kimberly J.; Wakschlag, Lauren S.

    2015-01-01

    Background Contextual variation in child disruptive behavior is well documented but remains poorly understood. We first examine how variation in observed disruptive behavior across interactional contexts is associated with maternal reports of contextual variation in oppositional-defiant behavior and functional impairment. Second, we test whether child inhibitory control explains the magnitude of contextual variation in observed disruptive behavior. Methods Participants are 497 young children (mean age = 4 years, 11 months) from a subsample of the MAPS, a sociodemographically diverse pediatric sample, enriched for risk of disruptive behavior. Observed anger modulation and behavioral regulation problems were coded on the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS) during interactions with parent and examiner. Oppositional-defiant behavior, and impairment in relationships, with parents and nonparental adults, were measured with the Preschool Age Psychiatric Assessment (PAPA) interview with the mother. Functional impairment in the home and out-and-about was assessed with the Family Life Impairment Scale (FLIS), and expulsion from child care/school was measured with the baseline survey and FLIS. Results Observed disruptive behavior on the DB-DOS Parent Context was associated with oppositional-defiant behavior with parents, and with impairment at home and out-and-about. Observed disruptive behavior with the Examiner was associated with oppositional-defiant behavior with both parents and nonparental adults, impairment in relationships with nonparental adults, and child care/school expulsion. Differences in observed disruptive behavior in the Parent versus Examiner Contexts was related to the differences in maternal reports of oppositional-defiant behavior with parents versus nonparental adults. Children with larger decreases in disruptive behavior from Parent to Examiner Context had better inhibitory control and fewer attention

  4. Reagent based DOS: a "Click, Click, Cyclize" strategy to probe chemical space.

    PubMed

    Rolfe, Alan; Lushington, Gerald H; Hanson, Paul R

    2010-05-07

    The synthesis of small organic molecules as probes for discovering new therapeutic agents has been an important aspect of chemical-biology. Herein we report a reagent-based, diversity-oriented synthetic (DOS) strategy to probe chemical and biological space via a "Click, Click, Cyclize" protocol. In this DOS approach, three sulfonamide linchpins underwent cyclization protocols with a variety of reagents to yield a collection of structurally diverse S-heterocycles. In silico analysis is utilized to evaluate the diversity of the compound collection against chemical space (PC analysis), shape space (PMI) and polar surface area (PSA) calculations.

  5. Optical testing

    NASA Technical Reports Server (NTRS)

    Wyant, James; Hochberg, Eric; Breault, Robert; Greivenkamp, John; Hunt, Gary; Mason, Pete; Mcguire, James; Meinel, Aden; Morris, Mike; Scherr, Larry

    1992-01-01

    Optical testing is one of the most vital elements in the process of preparing an optical instrument for launch. Without well understood, well controlled, and well documented test procedures, current and future mission goals will be jeopardized. We should keep in mind that the reason we test is to provide an opportunity to catch errors, oversights, and problems on the ground, where solutions are possible and difficulties can be rectified. Consequently, it is necessary to create tractable test procedures that truly provide a measure of the performance of all optical elements and systems under conditions which are close to those expected in space. Where testing is not feasible, accurate experiments are required in order to perfect models that can exactly predict the optical performance. As we stretch the boundaries of technology to perform more complex space and planetary investigations, we must expand the technology required to test the optical components and systems which we send into space. As we expand the observational wavelength ranges, so must we expand our range of optical sources and detectors. As we increase resolution and sensitivity, our understanding of optical surfaces to accommodate more stringent figure and scatter requirements must expand. Only with research and development in these areas can we hope to achieve success in the ever increasing demands made on optical testing by the highly sophisticated missions anticipated over the next two decades. Technology assessment and development plan for surface figure, surface roughness, alignment, image quality, radiometric quantities, and stray light measurement are presented.

  6. Patch tests.

    PubMed

    Lazzarini, Rosana; Duarte, Ida; Ferreira, Alessandra Lindmayer

    2013-01-01

    Patch tests were introduced as a diagnostic tool in the late nineteenth century. Since then, they have improved considerably becoming what they are today. Patch tests are used in the diagnostic investigation of contact dermatitis worldwide. Batteries or series previously studied and standardized should be used in patch testing. The methodology is simple, but it requires adequate training for the results to be correctly interpreted and used. Despite having been used for over a century, it needs improvement like all other diagnostic techniques in the medical field.

  7. Patch tests*

    PubMed Central

    Lazzarini, Rosana; Duarte, Ida; Ferreira, Alessandra Lindmayer

    2013-01-01

    Patch tests were introduced as a diagnostic tool in the late nineteenth century. Since then, they have improved considerably becoming what they are today. Patch tests are used in the diagnostic investigation of contact dermatitis worldwide. Batteries or series previously studied and standardized should be used in patch testing. The methodology is simple, but it requires adequate training for the results to be correctly interpreted and used. Despite having been used for over a century, it needs improvement like all other diagnostic techniques in the medical field. PMID:24474094

  8. Misconceptions Tests or Misconceived Tests?

    ERIC Educational Resources Information Center

    Griggs, Richard A.; Ransdell, Sarah E.

    1987-01-01

    States that taking a high school psychology course did not improve the performance of college students in an introductory psychology class on a modified version of Vaughan's misconceptions test (Test of Common Beliefs). Concludes that while college experience did lead to some improvement, comparison with other studies indicates that perhaps the…

  9. Collaborative Testing and Test Anxiety

    ERIC Educational Resources Information Center

    Breedlove, William; Burkett, Tracy; Winfield, Idee

    2004-01-01

    Prior research concluded that collaborative learning reduces test anxiety. Examination of the evidence used in that research, however, calls into question those conclusions. The present study used an empirical measure of test anxiety and an experimental design to provide an improved estimate of the effect of collaboration in an evaluative context…

  10. VLDL test

    MedlinePlus

    ... and proteins. They move cholesterol, triglycerides, and other lipids (fats) to around the body. VLDL is one ... Images Blood test References Semenkovich CF. Disorders of lipid metabolism. In: Goldman L, Schafer AI, eds. Goldman's ...

  11. Procalcitonin Test

    MedlinePlus

    ... CRP) , cultures (e.g., blood culture , urine culture ), lactate , blood gases , complete blood count (CBC) , and cerebrospinal ... of procalcitonin can be seen with medullary thyroid cancer , but the test is not used to diagnose ...

  12. Tested Demonstrations.

    ERIC Educational Resources Information Center

    Gilbert, George L.

    1990-01-01

    Included are three demonstrations that include the phase change of ice when under pressure, viscoelasticity and colloid systems, and flame tests for metal ions. The materials, procedures, probable results, and applications to real life situations are included. (KR)

  13. VMA Test

    MedlinePlus

    ... used to detect and rule out tumors called neuroblastomas in children with an abdominal mass or other ... homovanillic acid (HVA) test to help diagnose a neuroblastoma, to monitor the effectiveness of treatment, and to ...

  14. Test report :

    SciTech Connect

    Rose, David Martin; Schenkman, Benjamin L.; Borneo, Daniel R.

    2013-10-01

    The Department of Energy Office of Electricity (DOE/OE), Sandia National Laboratories (SNL) and the Base Camp Integration Lab (BCIL) partnered together to incorporate an energy storage system into a microgrid configured Forward Operating Base to reduce the fossil fuel consumption and to ultimately save lives. Energy storage vendors will be sending their systems to SNL Energy Storage Test Pad (ESTP) for functional testing and then to the BCIL for performance evaluation. The technologies that will be tested are electro-chemical energy storage systems comprising of lead acid, lithium-ion or zinc-bromide. Raytheon/KTech has developed an energy storage system that utilizes zinc-bromide flow batteries to save fuel on a military microgrid. This report contains the testing results and some limited analysis of performance of the Raytheon/KTech Zinc-Bromide Energy Storage System.

  15. Test Report :

    SciTech Connect

    Rose, David Martin; Schenkman, Benjamin L.; Borneo, Daniel R.

    2013-10-01

    The Department of Energy Office of Electricity (DOE/OE), Sandia National Laboratories (SNL) and the Base Camp Integration Lab (BCIL) partnered together to incorporate an energy storage system into a microgrid configured Forward Operating Base to reduce the fossil fuel consumption and to ultimately save lives. Energy storage vendors will be sending their systems to SNL Energy Storage Test Pad (ESTP) for functional testing and then to the BCIL for performance evaluation. The technologies that will be tested are electro-chemical energy storage systems comprising of lead acid, lithium-ion or zinc-bromide. GS Battery and EPC Power have developed an energy storage system that utilizes zinc-bromide flow batteries to save fuel on a military microgrid. This report contains the testing results and some limited analysis of performance of the GS Battery, EPC Power HES RESCU.

  16. Insulin Test

    MedlinePlus

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Insulin Share this page: Was this page helpful? Also known as: Fasting Insulin Formal name: Insulin, serum Related tests: C-peptide , ...

  17. Tested Demonstrations.

    ERIC Educational Resources Information Center

    Gilbert, George L.

    1990-01-01

    Included are three demonstrations that include the phase change of ice when under pressure, viscoelasticity and colloid systems, and flame tests for metal ions. The materials, procedures, probable results, and applications to real life situations are included. (KR)

  18. Serotonin Test

    MedlinePlus

    ... of this website will be limited. Home Visit Global Sites Search Help? ... Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: Policy | Opportunities Serotonin Share ...

  19. Myoglobin Test

    MedlinePlus

    ... of this website will be limited. Home Visit Global Sites Search Help? ... Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: Policy | Opportunities Myoglobin Share ...

  20. Bernstein test

    MedlinePlus

    Acid perfusion test ... your nose and into your esophagus. Mild hydrochloric acid will be sent down the tube, followed by ... when the tube is put in place. The acid may cause symptoms of heartburn. Your throat may ...

  1. Fungal Tests

    MedlinePlus

    ... diagnosis is needed, as in cases of persistent, deep, or systemic infections, more extensive testing may be ... mouth (thrush) Vaginal itching and discharge (yeast infection) Deep and systemic fungal infections may cause a variety ...

  2. Prenatal Tests

    MedlinePlus

    ... genetic counselor to help you look at the history of problems in your family and to determine the risk to your children. To decide which tests are right for you, it's important to carefully discuss with ...

  3. Troponins Test

    MedlinePlus

    ... affected by damage to skeletal muscles, so injections, accidents, and drugs that can damage muscle do not ... Learn more about ... Understanding Your Tests Inside the Lab In the News Article Index About This Site ...

  4. Cholesterol Test

    MedlinePlus

    ... Academy of Pediatrics. Children younger than 2 years old are too young to be tested. If the ... an existing problem like malnutrition , liver disease , or cancer . However there is no evidence that low ... Proudly ...

  5. Amylase Test

    MedlinePlus

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Amylase Share this page: Was this page helpful? Also known as: Amy Formal name: Amylase Related tests: Lipase , Trypsin , Trypsinogen At a Glance ...

  6. Test report :

    SciTech Connect

    Rose, David Martin; Schenkman, Benjamin L.; Borneo, Daniel R.

    2013-08-01

    The Department of Energy Office of Electricity (DOE/OE), Sandia National Laboratory (SNL) and the Base Camp Integration Lab (BCIL) partnered together to incorporate an energy storage system into a microgrid configured Forward Operating Base to reduce the fossil fuel consumption and to ultimately save lives. Energy storage vendors will be sending their systems to SNL Energy Storage Test Pad (ESTP) for functional testing and then to the BCIL for performance evaluation. The technologies that will be tested are electro-chemical energy storage systems comprised of lead acid, lithium-ion or zinc-bromide. Princeton Power Systems has developed an energy storage system that utilizes lithium ion phosphate batteries to save fuel on a military microgrid. This report contains the testing results and some limited analysis of performance of the Princeton Power Systems Prototype Energy Storage System.

  7. Test report :

    SciTech Connect

    Rose, David Martin; Schenkman, Benjamin L.; Borneo, Daniel R.

    2013-08-01

    The Department of Energy Office of Electricity (DOE/OE), Sandia National Laboratory (SNL) and the Base Camp Integration Lab (BCIL) partnered together to incorporate an energy storage system into a microgrid configured Forward Operating Base to reduce the fossil fuel consumption and to ultimately save lives. Energy storage vendors have supplied their systems to SNL Energy Storage Test Pad (ESTP) for functional testing and a subset of these systems were selected for performance evaluation at the BCIL. The technologies tested were electro-chemical energy storage systems comprised of lead acid, lithium-ion or zinc-bromide. MILSPRAY Military Technologies has developed an energy storage system that utilizes lead acid batteries to save fuel on a military microgrid. This report contains the testing results and some limited assessment of the Milspray Scorpion Energy Storage Device.

  8. PTT Test

    MedlinePlus

    ... PT and INR ; Fibrinogen ; D-dimer ; Thrombin Time ; Lupus Anticoagulant Testing ; ACT ; Coagulation Factors ; Platelet Count ; Heparin ... the blood. To detect nonspecific autoantibodies , such as lupus anticoagulant ; these are associated with clotting episodes and ...

  9. Phosphorus Test

    MedlinePlus

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Phosphorus Share this page: Was this page helpful? Also ... else I should know? How is it used? Phosphorus tests are most often ordered along with other ...

  10. AMA Test

    MedlinePlus

    ... M2 test may be ordered to help diagnose primary biliary cirrhosis (PBC) . PBC is a serious condition in which ... be performed to look for characteristic signs of primary biliary cirrhosis in the liver tissue and to confirm the ...

  11. Test Anxiety

    MedlinePlus

    ... Parents for Kids for Teens Search Teens Home Body Mind Sexual Health Food & Fitness Diseases & Conditions Infections Q& ... Like other anxiety reactions, test anxiety affects the body and the mind. When you're under stress, your body releases ...

  12. Albumin Test

    MedlinePlus

    ... may also be ordered to evaluate a person's nutritional status. ^ Back to top When is it ordered? An ... albumin test to check or monitor a person's nutritional status. However, since albumin concentrations respond to a variety ...

  13. Bilirubin Test

    MedlinePlus

    ... Also known as: Total Bilirubin; TBIL; Neonatal Bilirubin; Direct Bilirubin; Conjugated Bilirubin; Indirect Bilirubin; Unconjugated Bilirubin Formal ... Hepatitis B ; Hepatitis C ; Complete Blood Count ; Urinalysis ; Direct Antiglobulin Test ; Haptoglobin ; Reticulocyte Count All content on ...

  14. Digoxin test

    MedlinePlus

    Heart failure - digoxin test ... Mann DL. Management of patients with heart failure with reduced ejection fraction. In: Mann DL, Zipes DP, Libby P, Bonow RO, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of ...

  15. Pregnancy test

    MedlinePlus

    ... urine. There are 2 types of blood tests: Qualitative, which measures whether the HCG hormone is present ... eds. Henry's Clinical Diagnosis and Management by Laboratory Methods . 23rd ed. Philadelphia, PA: Elsevier; 2017:chap 25. ...

  16. Prenatal Tests

    MedlinePlus

    ... pregnant with multiples (more than one baby, like twins or triplets). The test is called noninvasive because ... us to hear how you can make a difference and let your friends know you are helping ...

  17. FRAXE testing

    SciTech Connect

    Holinski-Feder, E.; Chahrokh-Zadeh, S.; Jedele, K.B.

    1996-11-01

    With great interest we read the recent article and accompanying editorial on the routine testing of mentally retarded individuals for the FRAXE mutation. In that article a very low FRAXE prevalence (overall <4% of FRAXA, or {approximately}1/50,000 males) was noted when several study populations were combined. We wish to add our data on FRAXE and FRAXA testing in Germany. 4 refs.

  18. Sedimentation survey of Lago Dos Bocas, Utuado, Puerto Rico, January 2010

    USGS Publications Warehouse

    Soler-López, Luis R.

    2014-01-01

    Lago Dos Bocas reservoir was completed in 1942 to provide water for hydroelectric power generation along the northern coast of Puerto Rico. The reservoir had an original storage capacity of 37.50 million cubic meters (Mm3). The dam is located about 9 kilometers (km) northeast of the town of Utuado, immediately downstream of the original confluence of the Río Grande de Arecibo and the Río Caonillas (fig. 1). The Puerto Rico Electric Power Authority (PREPA) owns and operates the Lago Dos Bocas reservoir, and since 1996, the reservoir has become an essential part of the Puerto Rico Aqueduct and Sewer Authority (PRASA) North Coast Superaqueduct Project. The Superaqueduct is supplied by controlled releases for hydroelectric power generation that replenish the public-supply raw-water intake pool located about 10 km downstream from the Lago Dos Bocas Dam (fig. 1). As of 2005, the Superaqueduct supplies about 4.03 cubic meters per second (m3/s) (348,192 cubic meters per day [m3/d]) of potable water to communities along the northern coast, from Arecibo to the San Juan metropolitan area. Because of the importance of the reservoir to the North Coast Superaqueduct, the U.S. Geological Survey (USGS), in cooperation with PRASA, conducted a sedimentation survey of Lago Dos Bocas in January 2009. The results of this survey were used to estimate the useful life and the firm yield of the reservoir, and evaluate the need to dredge the reservoir.

  19. Content Analysis Schedule for Bilingual Education Programs: Programa en Dos Lenguas.

    ERIC Educational Resources Information Center

    Ludanyi, R. P.; Shore, Marietta Saravia

    This content analysis schedule for the "Programa en Dos Lenguas" of Fort Worth, Texas, presents information on the history, funding, and scope of the project. Included are sociolinguistic process variables such as the native and dominant languages of students and their interaction. Information is provided on staff selection and the…

  20. Function, regulation and pathological roles of the Gab/DOS docking proteins

    PubMed Central

    2009-01-01

    Since their discovery a little more than a decade ago, the docking proteins of the Gab/DOS family have emerged as important signalling elements in metazoans. Gab/DOS proteins integrate and amplify signals from a wide variety of sources including growth factor, cytokine and antigen receptors as well as cell adhesion molecules. They also contribute to signal diversification by channelling the information from activated receptors into signalling pathways with distinct biological functions. Recent approaches in protein biochemistry and systems biology have revealed that Gab proteins are subject to complex regulation by feed-forward and feedback phosphorylation events as well as protein-protein interactions. Thus, Gab/DOS docking proteins are at the centre of entire signalling subsystems and fulfil an important if not essential role in many physiological processes. Furthermore, aberrant signalling by Gab proteins has been increasingly linked to human diseases from various forms of neoplasia to Alzheimer's disease. In this review, we provide a detailed overview of the structure, effector functions, regulation and evolution of the Gab/DOS family. We also summarize recent findings implicating Gab proteins, in particular the Gab2 isoform, in leukaemia, solid tumours and other human diseases. PMID:19737390

  1. Pygmy Rice Rat as Potential Host of Castelo dos Sonhos Hantavirus

    PubMed Central

    Travassos da Rosa, Elizabeth S.; Medeiros, Daniele B. A.; Nunes, Márcio R.T.; Simith, Darlene B.; Pereira, Armando de Souza; Elkhoury, Mauro R.; Lavocat, Marília; Marques, Aparecido A.R.; Via, Alba Valéria; D’Andrea, Paulo; Bonvicino, Cibele R.; Lemos, Elba Regina S.

    2011-01-01

    To study the dynamics of wild rodent populations and identify potential hosts for hantavirus, we conducted an eco-epidemiologic study in Campo Novo do Parecis, Mato Grosso State, Brazil. We detected and genetically characterized Castelo dos Sonhos virus found in a species of pygmy rice rat (Oligoryzomys utiaritensis). PMID:21801642

  2. 33 CFR 106.250 - Declaration of Security (DoS).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Declaration of Security (DoS). 106.250 Section 106.250 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARINE SECURITY: OUTER CONTINENTAL SHELF (OCS) FACILITIES Outer Continental Shelf...

  3. 33 CFR 106.250 - Declaration of Security (DoS).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Declaration of Security (DoS). 106.250 Section 106.250 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARINE SECURITY: OUTER CONTINENTAL SHELF (OCS) FACILITIES Outer Continental Shelf...

  4. 33 CFR 106.250 - Declaration of Security (DoS).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Declaration of Security (DoS). 106.250 Section 106.250 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARINE SECURITY: OUTER CONTINENTAL SHELF (OCS) FACILITIES Outer Continental Shelf...

  5. 33 CFR 106.250 - Declaration of Security (DoS).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Declaration of Security (DoS). 106.250 Section 106.250 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARINE SECURITY: OUTER CONTINENTAL SHELF (OCS) FACILITIES Outer Continental Shelf...

  6. 33 CFR 106.250 - Declaration of Security (DoS).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Declaration of Security (DoS). 106.250 Section 106.250 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARINE SECURITY: OUTER CONTINENTAL SHELF (OCS) FACILITIES Outer Continental Shelf...

  7. 33 CFR 105.245 - Declaration of Security (DoS).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) of this section. (e) At MARSEC Levels 1 and 2, FSOs of facilities that frequently interface with the... part to implement a DoS with the VSO prior to any vessel-to-facility interface when he or she deems it...

  8. 33 CFR 105.245 - Declaration of Security (DoS).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) of this section. (e) At MARSEC Levels 1 and 2, FSOs of facilities that frequently interface with the... part to implement a DoS with the VSO prior to any vessel-to-facility interface when he or she deems it...

  9. Stretching the Software Dollar: MS-DOS Shareware and Public Domain Software.

    ERIC Educational Resources Information Center

    Grosch, Audrey N.

    1989-01-01

    Discusses shareware and public domain software for MS-DOS systems that are available through bulletin board systems (BBS). Problems with computer viruses are discussed; shareware available for communications, database and file management, spreadsheets, word processing, and menuing software is described; and source information for software is…

  10. Entre Dos Mundos/Between Two Worlds: Youth Violence Prevention for Acculturating Latino Families

    ERIC Educational Resources Information Center

    Smokowski, Paul R.; Bacallao, Martica

    2009-01-01

    Objective: This study evaluated the efficacy of Entre Dos Mundos/Between Two Worlds (EDM) prevention for Latino adolescents. Method: In an experimental trial to compare implementation formats, 41 Latino families were randomly assigned to EDM action-oriented skills training groups, and 47 families were randomly assigned to unstructured EDM support…

  11. Low-Budget, Cost-Effective OCR: Optical Character Recognition for MS-DOS Micros.

    ERIC Educational Resources Information Center

    Perez, Ernest

    1990-01-01

    Discusses optical character recognition (OCR) for use with MS-DOS microcomputers. Cost effectiveness is considered, three types of software approaches to character recognition are explained, hardware and operation requirements are described, possible library applications are discussed, future OCR developments are suggested, and a list of OCR…

  12. Entre Dos Mundos/Between Two Worlds: Youth Violence Prevention for Acculturating Latino Families

    ERIC Educational Resources Information Center

    Smokowski, Paul R.; Bacallao, Martica

    2009-01-01

    Objective: This study evaluated the efficacy of Entre Dos Mundos/Between Two Worlds (EDM) prevention for Latino adolescents. Method: In an experimental trial to compare implementation formats, 41 Latino families were randomly assigned to EDM action-oriented skills training groups, and 47 families were randomly assigned to unstructured EDM support…

  13. Low-Budget, Cost-Effective OCR: Optical Character Recognition for MS-DOS Micros.

    ERIC Educational Resources Information Center

    Perez, Ernest

    1990-01-01

    Discusses optical character recognition (OCR) for use with MS-DOS microcomputers. Cost effectiveness is considered, three types of software approaches to character recognition are explained, hardware and operation requirements are described, possible library applications are discussed, future OCR developments are suggested, and a list of OCR…

  14. Comparison and evaluation of atmospheric correction algorithms of QUAC, DOS, and FLAASH for HICO hyperspectral imagery

    NASA Astrophysics Data System (ADS)

    Shi, Liangliang; Mao, Zhihua; Chen, Peng; Han, Sha'ou; Gong, Fang; Zhu, Qiankun

    2016-10-01

    In order to obtain the spectral information of objects and improve the retrieval of quantitative parameters from remotely sensing data accurately on land or over water bodies, atmospheric correction is a vital step, certainly, it is also a prerequisite to hyperspectral imagery data analysis approaches. On the base of previous studies, the atmospheric correction algorithms were divided to two categories: image-based empirical and model-based correction methods. The Quick Atmospheric Correction (QUAC) and Dark Object Subtraction (DOS) methods belong to the empirical or semiempirical methods, however, the Fast Line-of-sight Atmospheric Analysis of Spectral Hypercube (FLAASH) method was developed from the radiative transfer model. In this paper, we initially evaluated the performance from Hyperspectral Imager for the Coastal Ocean (HICO) of 16 Nov 2013 using QUAC, DOS, and MODTRAN integrated in FLAASH, and compared the results of these correction methods with in situ data. The results indicate that the method of FLAASH model performs much better than DOS and QUAC in atmospheric correction for HICO hyperspectral imagery, although the DOS and QUAC method is conducted more easily and do not require inputs of complex parameters.

  15. Independent Test

    NASA Astrophysics Data System (ADS)

    Nomoto, Hideki; Katahira, Masafumi; Fukatsu, Tsutomu; Okabe, Hideki; Yamanaka, Kohji

    2005-12-01

    This paper describes IV&V (Independent Verification & Validation) methodology applied for the Rendezvous Flight Software (RVFS) of the H-IIA Transfer Vehicle (HTV).HTV is a cargo transportation vehicle to the International Space Station (ISS). RVFS not only controls the HTV's flight sequence autonomously, but also is deployed with two-fault tolerant FDIR (Fault Detection Isolation Recovery) functionality. Since software such as RVFS is very critical for safe and successful HTV operations, exhaustive IV&V is being conducted.RVFS is required to function to avoid HTV's collision to the ISS. The biggest challenge is thoroughness of the verification. Due to its complicated software algorithm to accomplish fully autonomous rendezvous to the ISS, required numbers of test cases can easily go beyond realistic for conventional verification methodologies.IV&V team developed a verification environment on which 1) formal specification model was made from the detailed software design specification and 2) C source code and test sequence were generated/executed from the model automatically.One of the main efforts of this activity was to increase fidelity of the model and the quality of the generated code sufficiently. This will be discussed in the modeling, the model checking and code generation technology sections. The other issue that had to be resolved was the methodology to generate exhaustive test cases for the developed model that takes continuous input values (so called hybrid model). Conventional random test case generation or boundary condition generation does not assure the sufficiency/validity of the test cases because combinations of inputs becomes theoretically infinite for this kind of model [1]. To resolve this problem, IV&V team developed a unique algorithm to generate finite number test cases that satisfies full-scale test requirement. This will be discussed in the testing section.The generated code was put through 550 billion full-path test cases. We succeeded to

  16. Sedimentation History of Lago Dos Bocas, Puerto Rico, 1942-2005

    USGS Publications Warehouse

    Soler-López, Luis R.

    2007-01-01

    The Lago Dos Bocas Dam, located in the municipality of Utuado in north central Puerto Rico, was constructed in 1942 for hydroelectric power generation. The reservoir had an original storage capacity of 37.50 million cubic meters and a drainage area of 440 square kilometers. In 1948, the construction of the Lago Caonillas Dam on the Rio Caonillas branch of Lago Dos Bocas reduced the natural sediment-contributing drainage area to 310 square kilometers; therefore, the Lago Caonillas Dam is considered an effective sediment trap. Sedimentation in Lago Dos Bocas reservoir has reduced the storage capacity from 37.50 million cubic meters in 1942 to 17.26 million cubic meters in 2005, which represents a storage loss of about 54 percent. The long-term annual water-storage capacity loss rate remained nearly constant at about 320,000 cubic meters per year to about 1997. The inter-survey sedimentation rate between 1997 and 1999, however, is higher than the long-term rate at about 1.09 million cubic meters per year. Between 1999 and 2005 the rate is lower than the long-term rate at about 0.13 million cubic meters per year. The Lago Dos Bocas effective sediment-contributing drainage area had an average sediment yield of about 1,400 cubic meters per square kilometer per year between 1942 and 1997. This rate increased substantially by 1999 to about 4,600 cubic meters per square kilometer per year, probably resulting from the historical magnitude floods caused by Hurricane Georges in 1998. Recent data indicate that the Lago Dos Bocas drainage area sediment yield decreased substantially to about 570 cubic meters per square kilometer per year, which is much lower than the 1942-1997 area normalized sedimentation rate of 1,235 cubic meters per square kilometer per year. The impact of Hurricane Georges on the basin sediment yield could have been the cause of this change, since the magnitude of the floods could have nearly depleted the Lago Dos Bocas drainage area of easily erodible and

  17. Testing technology

    SciTech Connect

    Not Available

    1993-10-01

    This bulletin from Sandia National Laboratories presents current research highlights in testing technology. Ion microscopy offers new nondestructive testing technique that detects high resolution invisible defects. An inexpensive thin-film gauge checks detonators on centrifuge. Laser trackers ride the range and track helicopters at low-level flights that could not be detected by radar. Radiation transport software predicts electron/photon effects via cascade simulation. Acoustic research in noise abatement will lead to quieter travelling for Bay Area Rapid Transport (BART) commuters.

  18. Rotational testing.

    PubMed

    Furman, J M

    2016-01-01

    The natural stimulus for the semicircular canals is rotation of the head, which also might stimulate the otolith organs. Vestibular stimulation usually induces eye movements via the vestibulo-ocular reflex (VOR). The orientation of the subject with respect to the axis of rotation and the orientation of the axis of rotation with respect to gravity together determine which labyrinthine receptors are stimulated for particular motion trajectories. Rotational testing usually includes the measurement of eye movements via a video system but might use a subject's perception of motion. The most common types of rotational testing are whole-body computer-controlled sinusoidal or trapezoidal stimuli during earth-vertical axis rotation (EVAR), which stimulates primarily the horizontal semicircular canals bilaterally. Recently, manual impulsive rotations, known as head impulse testing (HIT), have been developed to assess individual horizontal semicircular canals. Most types of rotational stimuli are not used routinely in the clinical setting but may be used in selected research environments. This chapter will discuss clinically relevant rotational stimuli and several types of rotational testing that are used primarily in research settings.

  19. Oral Testing.

    ERIC Educational Resources Information Center

    de Charruf, Laurie Frey

    1984-01-01

    Oral tests for speaking skills evaluate two major skills: linguistic competence, including accuracy of pronunciation, vocabulary, and structure, and communication ease. Four factors affect students' oral performance: verbal intelligence, short-term auditory and visual memory, sound-symbol association skill, and grammatical analysis. Personality…

  20. TORCH Test

    MedlinePlus

    PLEASE NOTE: Your web browser does not have JavaScript enabled. Unless you enable Javascript , your ability to navigate and access the features of this website will be limited. ... Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: ...

  1. Ammonia Test

    MedlinePlus

    PLEASE NOTE: Your web browser does not have JavaScript enabled. Unless you enable Javascript , your ability to navigate and access the features of this website will be limited. ... Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: ...

  2. Electrolytes Test

    MedlinePlus

    PLEASE NOTE: Your web browser does not have JavaScript enabled. Unless you enable Javascript , your ability to navigate and access the features of this website will be limited. ... Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: ...

  3. Trichomonas Testing

    MedlinePlus

    PLEASE NOTE: Your web browser does not have JavaScript enabled. Unless you enable Javascript , your ability to navigate and access the features of this website will be limited. ... Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: ...

  4. Pertussis Tests

    MedlinePlus

    ... less specific and sensitive than either the pertussis culture or PCR. ^ Back to top Proudly sponsored by ... Learn more about ... Understanding Your Tests Inside the Lab In the News Article Index About This Site Send Us Your Comments For Health Professionals Get the Mobile ...

  5. Prealbumin Test

    MedlinePlus

    PLEASE NOTE: Your web browser does not have JavaScript enabled. Unless you enable Javascript , your ability to navigate and access the features of this website will be limited. ... Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: ...

  6. Chloride Test

    MedlinePlus

    ... practitioner determine if there is also an acid-base imbalance and helps to guide treatment. ^ Back to top What does the test result mean? An increased level of blood chloride (called hyperchloremia) usually indicates ... too much base is lost from the body (producing metabolic acidosis ) ...

  7. Bicarbonate Test

    MedlinePlus

    ... blood). They also help monitor treatment until acid-base balance is restored. ^ Back to top When is it ordered? Bicarbonate testing ... hypertension ), heart failure , and liver and kidney disease . ^ ... having trouble maintaining its acid-base balance , either by failing to remove carbon dioxide ...

  8. Mono Test

    MedlinePlus

    ... services. Advertising & Sponsorship: Policy | Opportunities PLEASE NOTE: Your web browser does not have JavaScript enabled. Unless you enable Javascript , your ability to navigate and access the features of this website will be ... Mononucleosis (Mono) Test Share this page: Was this page helpful? Also ...

  9. 76 FR 25733 - 60-Day Notice of Proposed Information Collection: DS-7001 and DS-7005, DOS-Sponsored Academic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-05

    ... Notice of Proposed Information Collection: DS-7001 and DS- 7005, DOS-Sponsored Academic Exchange Program... preceding submission to OMB. We are conducting this process in accordance with the Paperwork Reduction Act of 1995. Title of Information Collection: DOS-Sponsored Academic Exchange Program Application. OMB...

  10. Observational Assessment of Preschool Disruptive Behavior, Part II: Validity of the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS)

    ERIC Educational Resources Information Center

    Wakschlag, Lauren S.; Briggs-Gowan, Margaret J.; Hill, Carri; Danis, Barbara; Leventhal, Bennett L.; Keenan, Kate; Egger, Helen L.; Cicchetti, Domenic; Burns, James; Carter, Alice S.

    2008-01-01

    A study is conducted to determine whether the multidomain, multicontext Disruptive Behavior Diagnostic Observation Schedule (DB-DOS) is a valid observational method for assessing disruptive behavior of preschool children. It is concluded that the DB-DOS is a valid method for a direct observational assessment of clinically significant disruptive…

  11. Observational Assessment of Preschool Disruptive Behavior, Part II: Validity of the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS)

    ERIC Educational Resources Information Center

    Wakschlag, Lauren S.; Briggs-Gowan, Margaret J.; Hill, Carri; Danis, Barbara; Leventhal, Bennett L.; Keenan, Kate; Egger, Helen L.; Cicchetti, Domenic; Burns, James; Carter, Alice S.

    2008-01-01

    A study is conducted to determine whether the multidomain, multicontext Disruptive Behavior Diagnostic Observation Schedule (DB-DOS) is a valid observational method for assessing disruptive behavior of preschool children. It is concluded that the DB-DOS is a valid method for a direct observational assessment of clinically significant disruptive…

  12. 48 CFR 653.217-70 - DOS form DS-1921, Award/Modification of Interagency Acquisition Agreement.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false DOS form DS-1921, Award... Regulations System DEPARTMENT OF STATE CLAUSES AND FORMS FORMS Prescription of Forms 653.217-70 DOS form DS-1921, Award/Modification of Interagency Acquisition Agreement. As prescribed in 617.504-70(b)(5)(i), DS...

  13. Models that Teach about the Computer: AppleWorks and ProDOS, the Computer's Memory and Disk Storage.

    ERIC Educational Resources Information Center

    Niess, Margaret L.

    1989-01-01

    This final article in a series on creating models for teaching about computer memory and disk storage and retrieval focuses on AppleWorks software and the Professional Disk Operating System (ProDOS). Instructions for creating a paper model of the AppleWorks menu system and the ProDOS disk file are given. (LRW)

  14. ACONF DOS

    SciTech Connect

    Atcitty, Stanley; Butler, Paul; Symons, Phlip; & Corey, Garth

    2009-03-25

    ACONF is a system which has been developed by Sandia National Laboratories. ACONF is a system for optimizing the interaction between generator, photovoltaic system, batteries, and load in independent non-grid-tied electrical systems. It is primarily used in rural locations where running utility lines proves costly if it is possible at all. It is controlled by an Ampro PC-104 Coremodule 400 controller system. The code for this system is written in the BASIC programming language. The routine contained in this document was written originally by Phil Symons. ACONF is intended to increase the efficiency of freestanding electrical systems to increase battery life and more efficiently use generator fuel.

  15. Microgrid Testing

    SciTech Connect

    Shirazi, M.; Kroposki, B.

    2012-01-01

    With the publication of IEEE 1574.4 Guide for Design, Operation, and Integration of Distributed Resource Island Systems with Electric Power Systems, there is an increasing amount of attention on not only the design and operations of microgrids, but also on the proper operation and testing of these systems. This standard provides alternative approaches and good practices for the design, operation, and integration of microgrids. This includes the ability to separate from and reconnect to part of the utility grid while providing power to the islanded power system. This presentation addresses the industry need to develop standardized testing and evaluation procedures for microgrids in order to assure quality operation in the grid connected and islanded modes of operation.

  16. Robonaut testing

    NASA Image and Video Library

    2013-08-05

    ISS036-E-029109 (6 Aug. 2013) --- In the International Space Station’s Destiny laboratory, NASA astronaut Chris Cassidy, Expedition 36 flight engineer, wears tele-operation gear consisting of a vest, gloves and visor to telerobotically test Robonaut 2’s maneuvers. Cassidy was able to manipulate R2’s head, neck, arms and fingers telerobotically through his own movements as well as through verbal commands.

  17. Robonaut testing

    NASA Image and Video Library

    2013-08-05

    ISS036-E-029110 (6 Aug. 2013) --- In the International Space Station’s Destiny laboratory, NASA astronaut Chris Cassidy, Expedition 36 flight engineer, wears tele-operation gear consisting of a vest, gloves and visor to telerobotically test Robonaut 2’s maneuvers. Cassidy was able to manipulate R2’s head, neck, arms and fingers telerobotically through his own movements as well as through verbal commands.

  18. Adaptive Tests

    DTIC Science & Technology

    1988-08-01

    triz + (1 - t) ). Therefore we have g’t) -u + X(Ca) - X(t1s) + X’(t±7p + (1 - t) where g’, X are derivitives of g, X with respect to t. If sc...hy- pothesis based on a sum of observations. Ann. Math. Statist., 23, 493-507. 12 [8] Blahut, R.E. (1974). Hypothesis testing and information theory

  19. Earthquake Testing

    NASA Technical Reports Server (NTRS)

    1979-01-01

    During NASA's Apollo program, it was necessary to subject the mammoth Saturn V launch vehicle to extremely forceful vibrations to assure the moonbooster's structural integrity in flight. Marshall Space Flight Center assigned vibration testing to a contractor, the Scientific Services and Systems Group of Wyle Laboratories, Norco, California. Wyle-3S, as the group is known, built a large facility at Huntsville, Alabama, and equipped it with an enormously forceful shock and vibration system to simulate the liftoff stresses the Saturn V would encounter. Saturn V is no longer in service, but Wyle-3S has found spinoff utility for its vibration facility. It is now being used to simulate earthquake effects on various kinds of equipment, principally equipment intended for use in nuclear power generation. Government regulations require that such equipment demonstrate its ability to survive earthquake conditions. In upper left photo, Wyle3S is preparing to conduct an earthquake test on a 25ton diesel generator built by Atlas Polar Company, Ltd., Toronto, Canada, for emergency use in a Canadian nuclear power plant. Being readied for test in the lower left photo is a large circuit breaker to be used by Duke Power Company, Charlotte, North Carolina. Electro-hydraulic and electro-dynamic shakers in and around the pit simulate earthquake forces.

  20. Testing Understanding and Understanding Testing.

    ERIC Educational Resources Information Center

    Pedersen, Jean; Ross, Peter

    1985-01-01

    Provides examples in which graphs are used in the statements of problems or in their solutions as a means of testing understanding of mathematical concepts. Examples (appropriate for a beginning course in calculus and analytic geometry) include slopes of lines and curves, quadratic formula, properties of the definite integral, and others. (JN)

  1. Trace Element Distribution Between Olivine and Kirschsteinite in Angra Dos Reis

    NASA Technical Reports Server (NTRS)

    Fittipaldo, M. M.; Jones, R. H.; Shearer, C. K.

    2003-01-01

    The angrites are a small and enigmatic group of basaltic achondrites that possess unique mineralogical and chemical properties. The dominant mineralogy of the seven angrite members (Angra dos Reis, LEW 86010, LEW 87051, Asuka 881371, Sahara 99555, D Orbigny, and a new Moroccan member) is fassaite, olivine, and plagioclase. Angrites display a wide range of thermal histories, with Angra dos Reis (AdoR) exhibiting a cooling history different from that of the rapidly cooled members and from LEW86010, a more slowly cooled member. AdoR could represent either a cumulate or a porphyritic igneous rock that was later altered by metamorphism. We are re-examining the thermal history of AdoR in light of the more recently described angrite members. Our emphasis is a trace element study of low-Ca olivine, which we refer to as olivine, and high-Ca olivine, which we refer to as kirschsteinite, in AdoR.

  2. Using satellite images to monitor glacial-lake outburst floods: Lago Cachet Dos drainage, Chile

    USGS Publications Warehouse

    Friesen, Beverly A.; Cole, Christopher J.; Nimick, David A.; Wilson, Earl M.; Fahey, Mark J.; McGrath, Daniel J.; Leidich, Jonathan

    2015-01-01

    During 2008–2013, 14 GLOFs were released from Lago Cachet Dos and created environmental and safety concerns for downstream residents and to infrastructure. If GLOFs and the consequent headward erosion continue, the moraine that creates Lago Cachet Uno could be destabilized and breached, and the two lakes could merge. If the two lakes become connected, the volume of future GLOFs likely would be greater and thus cause longer and (or) more extensive flooding downstream. Additional GLOFs from Lago Cachet Dos are expected in the future, and continued environmental monitoring could provide an early warning system as well as scientific information that could increase our understanding of GLOFs and their consequences. GLOFs occur in glaciated areas around the world and remote sensing technologies can allow researchers to better understand—and potentially predict—future GLOF events.

  3. Magnetic field effects on the DOS of a Kondo quantum dot coupled to LL leads

    NASA Astrophysics Data System (ADS)

    Yang, Kai-Hua; Qin, Chang-Dong; Wang, Huai-Yu; Wang, Xu

    2017-01-01

    We investigate the joint effects of a magnetic field and electron-electron interaction on the tunneling density of states (DOS) of a quantum dot coupled to the Luttinger liquid leads in the Kondo regime. We find that for intralead electron interaction, the DOS develops two peaks deviated from the origin by the Zeeman energy. With the increase of the intralead interaction, a phase transition occurs. For moderately strong interaction, the Zeeman splitting peaks develop into two dips. The splitting of the Kondo peak and dip is not symmetric with respect to up and down spins. In the limit of strong interaction the Zeeman splitting behavior disappears and there appears a power-law scaling behavior.

  4. Application of a sparse matrix design strategy to the synthesis of dos libraries.

    PubMed

    Akella, Lakshmi B; Marcaurelle, Lisa A

    2011-07-11

    We have implemented an interactive and practical sparse matrix design strategy for the synthesis of DOS libraries, which facilitates the selection of diverse library members within a user-defined range of physicochemical properties while still maintaining synthetic efficiency. The utility of this approach is illustrated with the synthesis of an 8000-membered library of stereochemically diverse medium-sized rings accessible via a build/couple/pair DOS strategy. Diverse library members were selected from a virtual library by applying the maximum dissimilarity method, while the selection of similar analogs around each diverse product was ensured by picking near neighbors algorithmically based on fingerprint comparison. Adjustable filters on compound properties, which can be tailored to suit the needs of the target biology, facilitated subset selection from the synthetically accessible compounds.

  5. Adaptive Suspicious Prevention for Defending DoS Attacks in SDN-Based Convergent Networks

    PubMed Central

    Dao, Nhu-Ngoc; Kim, Joongheon; Park, Minho; Cho, Sungrae

    2016-01-01

    The convergent communication network will play an important role as a single platform to unify heterogeneous networks and integrate emerging technologies and existing legacy networks. Although there have been proposed many feasible solutions, they could not become convergent frameworks since they mainly focused on converting functions between various protocols and interfaces in edge networks, and handling functions for multiple services in core networks, e.g., the Multi-protocol Label Switching (MPLS) technique. Software-defined networking (SDN), on the other hand, is expected to be the ideal future for the convergent network since it can provide a controllable, dynamic, and cost-effective network. However, SDN has an original structural vulnerability behind a lot of advantages, which is the centralized control plane. As the brains of the network, a controller manages the whole network, which is attractive to attackers. In this context, we proposes a novel solution called adaptive suspicious prevention (ASP) mechanism to protect the controller from the Denial of Service (DoS) attacks that could incapacitate an SDN. The ASP is integrated with OpenFlow protocol to detect and prevent DoS attacks effectively. Our comprehensive experimental results show that the ASP enhances the resilience of an SDN network against DoS attacks by up to 38%. PMID:27494411

  6. Adaptive Suspicious Prevention for Defending DoS Attacks in SDN-Based Convergent Networks.

    PubMed

    Dao, Nhu-Ngoc; Kim, Joongheon; Park, Minho; Cho, Sungrae

    2016-01-01

    The convergent communication network will play an important role as a single platform to unify heterogeneous networks and integrate emerging technologies and existing legacy networks. Although there have been proposed many feasible solutions, they could not become convergent frameworks since they mainly focused on converting functions between various protocols and interfaces in edge networks, and handling functions for multiple services in core networks, e.g., the Multi-protocol Label Switching (MPLS) technique. Software-defined networking (SDN), on the other hand, is expected to be the ideal future for the convergent network since it can provide a controllable, dynamic, and cost-effective network. However, SDN has an original structural vulnerability behind a lot of advantages, which is the centralized control plane. As the brains of the network, a controller manages the whole network, which is attractive to attackers. In this context, we proposes a novel solution called adaptive suspicious prevention (ASP) mechanism to protect the controller from the Denial of Service (DoS) attacks that could incapacitate an SDN. The ASP is integrated with OpenFlow protocol to detect and prevent DoS attacks effectively. Our comprehensive experimental results show that the ASP enhances the resilience of an SDN network against DoS attacks by up to 38%.

  7. FlexyDos3D: a deformable anthropomorphic 3D radiation dosimeter: radiation properties

    NASA Astrophysics Data System (ADS)

    De Deene, Y.; Skyt, P. S.; Hil, R.; Booth, J. T.

    2015-02-01

    Three dimensional radiation dosimetry has received growing interest with the implementation of highly conformal radiotherapy treatments. The radiotherapy community faces new challenges with the commissioning of image guided and image gated radiotherapy treatments (IGRT) and deformable image registration software. A new three dimensional anthropomorphically shaped flexible dosimeter, further called ‘FlexyDos3D’, has been constructed and a new fast optical scanning method has been implemented that enables scanning of irregular shaped dosimeters. The FlexyDos3D phantom can be actuated and deformed during the actual treatment. FlexyDos3D offers the additional advantage that it is easy to fabricate, is non-toxic and can be molded in an arbitrary shape with high geometrical precision. The dosimeter formulation has been optimized in terms of dose sensitivity. The influence of the casting material and oxygen concentration has also been investigated. The radiophysical properties of this new dosimeter are discussed including stability, spatial integrity, temperature dependence of the dosimeter during radiation, readout and storage, dose rate dependence and tissue equivalence. The first authors Y De Deene and P S Skyt made an equivalent contribution to the experimental work presented in this paper.

  8. Tauwer Test

    SciTech Connect

    Russ, James; Iori, Maurizio; Ronzhin, Anatoly; /Fermilab

    2011-01-24

    TAUWER is a proposed astroparticle experiment to detect ultrahigh energy TAU neutrinos, using detector towers arrayed on a mountainside looking down into a valley. This test is to study the possibility of replacing Hamamatsu miniature PMTs with SiPMs for readout by determining the response of scintillation detectors with SiPM readout to low energy electrons, 2 GeV or lower, as the beam will provide. The detector itself is a compact package shown in the picture on the cover. it was used in a parasitic test beam run on December 15, 2010, to compare the relative timing of the signals from three counters for MIPs. The only change for this new run is the insertion of 1.5 cm of Pb in front of counter 2 or counter 3 during most of the running. The experiment takes some electron data without Pb for calibration purposes. The apparatus will be mounted on the moving table in MT6.2B.

  9. Brief communication: "Zuzu" strikes again--morphological affinities of the early holocene human skeleton from Toca dos Coqueiros, Piaui, Brazil.

    PubMed

    Hubbe, Mark; Neves, Walter A; do Amaral, Heleno Licurgo; Guidon, Niéde

    2007-10-01

    The Serra da Capivara National Park in northeastern Brazil is one of the richest archaeological regions in South America. Nonetheless, so far only two paleoindian skeletons have been exhumed from the local rockshelters. The oldest one (9870 +/- 50 BP; CAL 11060 +/- 50), uncovered in Toca dos Coqueiros and known as "Zuzu," represents a rare opportunity to explore the biological relationships of paleoindian groups living in northeastern Brazil. As previously demonstrated, South and Central America Paleoindians present skull morphology distinct from the one found nowadays in Amerindians and similar to Australo-Melanesians. Here we test the hypothesis that Zuzu shows higher morphological affinity with Paleoindians. However, Zuzu is a controversial skeleton since previous osteological assessments have disagreed on several aspects, especially regarding its sex. Thus, we compared Zuzu to males and females independently. Morphological affinities were assessed through clustering of principal components considering 18 worldwide populations and through principal components analysis of the individual dispersion of five key regions for America's settlement. The results obtained do not allow us to refute the hypothesis, expanding the known geographical dispersion of the Paleoindian morphology into northeast Brazil. To contribute to the discussion regarding Zuzu's sex, a new estimation is presented based on visual inspection of cranial and post-cranial markers, complemented by a discriminant analysis of its morphology in relation to the paleoindian sample. The results favor a male classification and are consistent with the mortuary offerings found in the burial, yet do not agree with a molecular determination.

  10. Performance Testing

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Systems Technology, Inc., Hawthorne, CA, developed an electronic Critical Tracking Task (CTT) system that analyzes and rates a subject's visual/motor responses for Ames Research Center. Originally applied to measuring the effects of long term confinement in the mid 1960's, the CTT system is now marketed as FACTOR 1000 by Performance Factors, Inc. Alameda, CA, under a licensing agreement with Systems Technology. The system is a non-invasive, self-administered test that takes less than a minute and detects impairment from a broad range of causes, including stress, fatigue, illness, drugs, or alcohol. It is used daily by Old Town Trolley Tours, San Diego, CA, to assess each driver's physical coordination skills prior to the start of each shift. FACTOR 1000 reduces liabilities and costs related to accidents, and costs less than one dollar per day per employee. Performance Factors is now BioFactors, Inc.

  11. Drug testing.

    PubMed

    Cowan, David A

    2008-01-01

    The analysis of sports samples for prohibited substances began in the 1960s and has developed since then using modern technologies close to the latest scientific discoveries. In this chapter the latest techniques and applications are described as well as the role of the World Anti-Doping Agency as the controlling body for the implementation of these tests. For small molecules, apart from the routine use of GC-MS, the newer techniques include the use of isotope ratio MS to detect testosterone and nandrolone administration and LC-MS/MS (liquid chromatography-tandem MS) to detect diuretics. For large molecules, several applications of LC-MS/MS are described as well as immunoprocedures for erythropoietin and human growth hormone. Finally, the latest method to detect homologous blood transfusion is briefly described.

  12. Collaborative Testing

    PubMed Central

    Nafziger, Rita; Meseke, Jamie K.; Meseke, Christopher A.

    2011-01-01

    Purpose: With increased focus on student preparation for high-stakes licensure exams, there is more interest in alternate forms of content delivery and assessment. This interest has focused on factors within the learning environment that may impact student's course performance and program progress. In this project, the impact of the method of group determination (random assignment vs. student selection) on student performance in a neuroanatomy course within a collaborative testing environment is examined. Methods: The course performance of two cohorts (cohort one: randomized grouping = 80; cohort two: student-selected grouping = 82) were compared. All students completed weekly quizzes within collaborative groups, while completing unit exams individually. The mean sum of both the quiz scores and examination scores were compared. Results: While the two groups differed (Wilks' lambda = 0.211; F = 53.541; df = 10,143; p < .05), no pattern was evident among the assessments (ie, one group did not differ significantly on all quizzes or examinations). In overall quiz performance, the randomized groupings scored significantly higher than the student-selected groups (F = 112.252; df = 1152; p < .05) while no difference was noted relative to overall exam scores (F = 2.672; df = 1152; p > .05). Conclusions: While the collaborative testing paradigm has been shown to be a valuable learning tool, no differences are apparent in the course performance between students in randomly assigned groups compared to those in student-selected groups. The very nature of random groups may have encouraged students to be proficient in all of the material, whereas students who were allowed to choose their groups may have divided the material among themselves and not become individually proficient in all concepts. PMID:21677868

  13. Lab Test Information

    MedlinePlus

    ... Test Anion Gap Blood Test AST Test B Bacteria Culture Test Bilirubin Blood Test Bilirubin in Urine Blood Differential Blood Glucose Test Blood in Urine Blood Smear BUN (Blood Urea Nitrogen) C Calcium Blood Test Calcium in Urine ...

  14. Heliostat tested

    NASA Astrophysics Data System (ADS)

    1984-12-01

    An enormous glint of sunlight darted over gently sloping summits and the hairpin curves of the mountain road. Mirrors concentrated this glint into a single beam, which then shot through a thick sheet of aluminum. Such was the result of the first test run on heliostats of the unique Solntse scientific-production complex being erected in Tashkent Oblast. There will be 62 such heliostats, each with an area of 50 square meters. Hot beams will be transmitted to the concave mirror of a concentrator (2,000 square meters). And the glint that shoots from it effortlessly melts not only aluminum but also almost all known materials. A special melting furnace toward which the concentractor directs hundreds of kilowatts of energy, burns brighter than a thousand suns. The complex presently under construction is intended for acquisition of ultrahigh-heat and concurrently ultrapure materials needed by many industrial sectors. This is extremely difficult to do by traditional chemical methods and even by the most modern methods--ultrahigh frequency and cathode ray methods.

  15. Hepatitis A seroprevalence in public school children in Campos dos Goytacazes, Rio de Janeiro State, Brazil, prior to the introduction of the hepatitis A universal childhood vaccination.

    PubMed

    Kury, Charbell Miguel; Pinto, Marcelo Alves; Silva, Jaquelline Pereira da; Cruz, Oswaldo Gonçalves; Vitral, Claudia Lamarca

    2016-11-01

    This cross-sectional study was carried out between August 2011 and July 2012 in the city of Campos dos Goytacazes in Rio de Janeiro State, Brazil. Dried blood spot samples were collected on filter paper from 919 individuals between the ages of 1 and 19 and were tested for antibodies against the hepatitis A virus (anti-HAV). The total prevalence was 20.7%, while 94.7% of children under the age of 5 were found to be susceptible to HAV infection. The prevalence of anti-HAV increased with age, reaching 33.3% among individuals aged between 15 and 19, thereby indicating that this municipality has a low level of endemicity for hepatitis A. Age, non-white skin color, accustomed to swimming in the river and more than five people living at home were the factors that were associated with an increase in the chance of a positive anti-HAV result. Mother's education level (secondary or tertiary) was considered a protective factor for HAV infection. The data obtained showed that a large proportion of the children from Campos dos Goytacazes were at risk of HAV infection, which should be minimized with the introduction of the vaccination program against hepatitis A that was launched in the municipality in 2011.

  16. APU diaphragm testing. Test plan

    NASA Technical Reports Server (NTRS)

    Shelley, Richard

    1992-01-01

    Auxiliary Power Unit (APU) fuel (hydrazine) tanks have had to be removed from the Columbia Shuttle (OV-102) because they have been in service for 11 years, which is the limit of their useful life. As part of an effort to determine whether the useful life of the fuel tanks can be extended, examination of the ethylene propylene rubber (EPR) diaphragm and the metal from one of the APU tanks is required. The JSC Propulsion and Power Division has requested White Sands Test Facility (WSTF) to examine the EPR diaphragm thoroughly and the metal casing generally from one tank. The objective is to examine the EPR diaphragm for signs of degradation that may limit the life of its function in the APU propellant tank. The metal casing will also be examined for signs of surface corrosion.

  17. OptaDOS: A tool for obtaining density of states, core-level and optical spectra from electronic structure codes

    NASA Astrophysics Data System (ADS)

    Morris, Andrew J.; Nicholls, Rebecca J.; Pickard, Chris J.; Yates, Jonathan R.

    2014-05-01

    We present OptaDOS, a program for calculating core-electron and low-loss electron energy loss spectra (EELS) and optical spectra along with total-, projected- and joint-density of electronic states (DOS) from single-particle eigenenergies and dipole transition coefficients. Energy-loss spectroscopy is an important tool for probing bonding within a material. Interpreting these spectra can be aided by first principles calculations. The spectra are generated from the eigenenergies through integration over the Brillouin zone. An important feature of this code is that this integration is performed using a choice of adaptive or linear extrapolation broadening methods which we show produces higher accuracy spectra than standard fixed-width Gaussian broadening. OptaDOS may be straightforwardly interfaced to any electronic structure code. OptaDOS is freely available under the GNU General Public licence from http://www.optados.org.

  18. [European Portuguese EARS test battery adaptation].

    PubMed

    Alves, Marisa; Ramos, Daniela; Oliveira, Graça; Alves, Helena; Anderson, Ilona; Magalhães, Isabel; Martins, Jorge H; Simões, Margarida; Ferreira, Raquel; Fonseca, Rita; Andrade, Susana; Silva, Luís; Ribeiro, Carlos; Ferreira, Pedro Lopes

    2014-01-01

    Introdução: A utilização de instrumentos de avaliação em saúde adequados é fundamental na gestão da prestação de cuidados. A escassez, em Portugal, de instrumentos específicos para a avaliação do desempenho de crianças utilizadoras de implantes cocleares motivou o trabalho de tradução e de adaptação da bateria de testes EARS (Evaluation of Auditory Responses to Speech) para o português europeu. Esta bateria de testes é hoje um dos instrumentos mais comummente utilizados por equipas de (re)habilitação de crianças surdas com implantes cocleares em todo o mundo. O objetivo a atingir com a validação do EARS foi fornecer às equipas de (re)habilitação um instrumento que permita: (i) monitorizar a evolução individual da reabilitação; (ii) gerir um programa de (re)habilitação de acordo com resultados objetivos, comparáveis entre diferentes equipas de (re)habilitação; (iii) obter dados comparáveis comequipas internacionais; e (iv) melhorar a adesão e a motivação da família e restantes profissionais no ambulatório.Material e Métodos: No processo de tradução e de adaptação da bateria de testes, os procedimentos adotados foram os seguintes: (i) tradução da versão inglesa para português europeu por um tradutor profissional; (ii) revisão dessa tradução realizada por um painel de especialistas constituído por otorrinolaringologistas, terapeutas da fala e técnicos de audiologia; (iii) adaptação dos estímulos de teste pela equipa de terapeutas da fala; e (iv) nova revisão por parte do painel de especialistas.Resultados: São apresentados, para cada um dos instrumentos que compõem a bateria EARS, as adaptações introduzidas, conciliando as características e os objetivos originais dos instrumentos com as particularidades linguísticas e culturais da população portuguesa.Discussão: São discutidas as dificuldades encontradas durante o processo de tradução e de adaptação e as soluções adotadas. São feitas

  19. T cell responses to DosR and Rpf proteins in actively and latently infected individuals from Colombia.

    PubMed

    Riaño, Felipe; Arroyo, Leonar; París, Sara; Rojas, Mauricio; Friggen, Annemieke H; van Meijgaarden, Krista E; Franken, Kees L M C; Ottenhoff, Tom H M; García, Luis F; Barrera, Luis F

    2012-03-01

    Mycobacterium tuberculosis DosR regulon-encoded proteins elicit strong immune T-cell responses in individuals with latent tuberculosis (LTBI). Also, resuscitation (Rpf) proteins can induce such responses. However, variations in the immunogenicity of the DosR and Rpf proteins have been observed in European and African populations, and no data are published from other geographic areas. In Colombian LTBI and patients with recently diagnosed PTB, we therefore studied the immune response to DosR, Rpf, stress, and nominal antigens from Mtb, in 7-day stimulated cultures. Three DosR (Rv1737c, Rv2029c, Rv2628c) and 2 Rpf (Rv0867 and Rv2389c) antigens were recognized most prominently on the basis of the net IFNγ production (DosR) or the percentage of responding individuals (Rpf). Results show that the selected DosR antigens induced a higher proportion of CD4-T cells producing IFNγ from LTBI, compared to pulmonary TB patients (PTB), while there were no differences in the proportion of CD8-T cells. An increased frequency of CD4, but not CD8 T-cells with a CD45RO(+)CD27(+) phenotype was observed in LTBI in response to Rv2029c, Rv0867c, and Rv2389c, compared to PTB. The levels of cytokines and chemokines in the supernatants of stimulated cells, showed that the DosR and Rpf antigens induced higher levels of IFNγ in cultures from LTBI compared to PTB, although the induced pattern of cytokines and chemokines was also antigen dependent. In summary, our results are consistent with the significant immunogenicity of Mtb DosR and Rpf antigens in LTBI individuals, and confirm and extend previously reported data from other TB affected human populations.

  20. DoS detection in IEEE 802.11 with the presence of hidden nodes

    PubMed Central

    Soryal, Joseph; Liu, Xijie; Saadawi, Tarek

    2013-01-01

    The paper presents a novel technique to detect Denial of Service (DoS) attacks applied by misbehaving nodes in wireless networks with the presence of hidden nodes employing the widely used IEEE 802.11 Distributed Coordination Function (DCF) protocols described in the IEEE standard [1]. Attacker nodes alter the IEEE 802.11 DCF firmware to illicitly capture the channel via elevating the probability of the average number of packets transmitted successfully using up the bandwidth share of the innocent nodes that follow the protocol standards. We obtained the theoretical network throughput by solving two-dimensional Markov Chain model as described by Bianchi [2], and Liu and Saadawi [3] to determine the channel capacity. We validated the results obtained via the theoretical computations with the results obtained by OPNET simulator [4] to define the baseline for the average attainable throughput in the channel under standard conditions where all nodes follow the standards. The main goal of the DoS attacker is to prevent the innocent nodes from accessing the channel and by capturing the channel’s bandwidth. In addition, the attacker strives to appear as an innocent node that follows the standards. The protocol resides in every node to enable each node to police other nodes in its immediate wireless coverage area. All innocent nodes are able to detect and identify the DoS attacker in its wireless coverage area. We applied the protocol to two Physical Layer technologies: Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) and the results are presented to validate the algorithm. PMID:25685510

  1. DoS detection in IEEE 802.11 with the presence of hidden nodes.

    PubMed

    Soryal, Joseph; Liu, Xijie; Saadawi, Tarek

    2014-07-01

    The paper presents a novel technique to detect Denial of Service (DoS) attacks applied by misbehaving nodes in wireless networks with the presence of hidden nodes employing the widely used IEEE 802.11 Distributed Coordination Function (DCF) protocols described in the IEEE standard [1]. Attacker nodes alter the IEEE 802.11 DCF firmware to illicitly capture the channel via elevating the probability of the average number of packets transmitted successfully using up the bandwidth share of the innocent nodes that follow the protocol standards. We obtained the theoretical network throughput by solving two-dimensional Markov Chain model as described by Bianchi [2], and Liu and Saadawi [3] to determine the channel capacity. We validated the results obtained via the theoretical computations with the results obtained by OPNET simulator [4] to define the baseline for the average attainable throughput in the channel under standard conditions where all nodes follow the standards. The main goal of the DoS attacker is to prevent the innocent nodes from accessing the channel and by capturing the channel's bandwidth. In addition, the attacker strives to appear as an innocent node that follows the standards. The protocol resides in every node to enable each node to police other nodes in its immediate wireless coverage area. All innocent nodes are able to detect and identify the DoS attacker in its wireless coverage area. We applied the protocol to two Physical Layer technologies: Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) and the results are presented to validate the algorithm.

  2. Studies of Brazilian meteorites. III - Origin and history of the Angra dos Reis achondrite

    NASA Technical Reports Server (NTRS)

    Prinz, M.; Keil, K.; Hlava, P. F.; Berkley, J. L.; Gomes, C. B.; Curvello, W. S.

    1977-01-01

    The mineral composition of the Angra dos Reis meteorite, which fell in 1869, is described. This achondrite contains phases reported in a meteorite for the first time. Petrofabric analysis shows that fassaite has a preferred orientation and lineation, which is interpreted as being due to cumulus processes, possibly the effect of post-depositional magmatic current flow or laminar flow of a crystalline mush. The mineral chemistry indicates crystallization from a highly silica-undersaturated melt at low pressure. Several aspects of the mineral composition are discussed with reference to the implications of crystallization conditions.

  3. Anaerobic Mycobacterium tuberculosis cell death stems from intracellular acidification mitigated by the DosR regulon.

    PubMed

    Reichlen, Matthew J; Leistikow, Rachel L; Scobey, Micah S; Born, Sarah E M; Voskuil, Martin I

    2017-09-05

    Mycobacterium tuberculosis (Mtb) is a strict aerobe capable of prolonged survival in the absence of oxygen. We investigated the ability of anaerobic Mtb to counter challenges to internal pH homeostasis in the absence of aerobic respiration, the primary mechanism of proton efflux for aerobic bacilli. Anaerobic Mtb populations were markedly impaired for survival under a mildly acidic pH relative to standard culture conditions. Acidic environmental pH greatly increased the susceptibility of anaerobic bacilli to collapse of proton motive force by protonophores, to antimicrobial compounds that target entry into the electron transport system, and to small organic acids with uncoupling activity. However, anaerobic bacilli exhibited high tolerance to these challenges at near neutral pH. At a slightly alkaline pH which was near the optimum intracellular pH, protonophore addition even improved long-term bacilli survival. Although anaerobic Mtb in acidic conditions maintained 40% lower ATP levels than bacilli at standard culture conditions, ATP loss alone could not explain the viability drop. Protonophores decreased ATP levels by more than 90% regardless of extracellular pH but were bactericidal only under acidic conditions, indicating anaerobic bacilli could survive extreme ATP loss provided the external pH was within viable intracellular parameters. Acidic conditions drastically decreased anaerobic survival of a DosR mutant while an alkaline environment improved survival of the DosR mutant. Together these findings indicate intracellular acidification is a primary challenge for anaerobic Mtb survival and that the DosR regulon plays a critical role in sustaining internal pH homeostasis.Importance: During infection, Mtb bacilli are prevalent in environments largely devoid of oxygen. Yet the factors that influence survival of these severely growth- and metabolically-limited bacilli remain poorly understood. We determined how anaerobic bacilli respond to fluctuations in

  4. Volcanic and structural controls of mineralization in the Dos Cabezas Mountains of southeastern Arizona

    SciTech Connect

    Drewes, H.; Klein, D.P.; Birmingham, S.D.

    1988-01-01

    A combination of geophysical, geochemical, and geological features suggests that a central part of the Dos Cabezas Mountains probably has considerable potential for blind deposits, chiefly base metals. The area exposes the root zone of a Paleocene( ) volcanic complex and its underlying granitic stocks, which were emplaced next to a major northwest-trending, much reactivated fault zone. The new data, combined with the knowledge of past mining activity in the area, lead them to propose several exploration targets that may lead to ore bodies in breccia pipes along the base of the volcanic pile and along a possible concealed fault or caldera margin.

  5. Pinch-off dynamics and dripping-onto-substrate (DoS) rheometry of complex fluids.

    PubMed

    Dinic, Jelena; Jimenez, Leidy Nallely; Sharma, Vivek

    2017-01-31

    Liquid transfer and drop formation/deposition processes involve complex free-surface flows including the formation of columnar necks that undergo spontaneous capillary-driven instability, thinning and pinch-off. For simple (Newtonian and inelastic) fluids, a complex interplay of capillary, inertial and viscous stresses determines the nonlinear dynamics underlying finite-time singularity as well as self-similar capillary thinning and pinch-off dynamics. In rheologically complex fluids, extra elastic stresses as well as non-Newtonian shear and extensional viscosities dramatically alter the nonlinear dynamics. Stream-wise velocity gradients that arise within the thinning columnar neck create an extensional flow field, and many complex fluids exhibit a much larger resistance to elongational flows than Newtonian fluids with similar shear viscosity. Characterization of pinch-off dynamics and the response to both shear and extensional flows that influence drop formation/deposition in microfluidic and printing applications requires bespoke instrumentation not available, or easily replicated, in most laboratories. Here we show that dripping-onto-substrate (DoS) rheometry protocols that involve visualization and analysis of capillary-driven thinning and pinch-off dynamics of a columnar neck formed between a nozzle and a sessile drop can be used for measuring shear viscosity, power law index, extensional viscosity, relaxation time and the most relevant processing timescale for printing. We showcase the versatility of DoS rheometry by characterizing and contrasting the pinch-off dynamics of a wide spectrum of simple and complex fluids: water, printing inks, semi-dilute polymer solutions, yield stress fluids, food materials and cosmetics. We show that DoS rheometry enables characterization of low viscosity printing inks and polymer solutions that are beyond the measurable range of commercially-available capillary break-up extensional rheometer (CaBER). We show that for high

  6. Age and isotopic relationships among the angrites Lewis Cliff 86010 and Angra dos Reis

    SciTech Connect

    Lugmair, G.W. ); Galer, S.J.G. Max-Planck-Inst. fuer Chemie, Mainz )

    1992-04-01

    Results of a wide-ranging isotopic investigation of the unique Antarctican angrite LEW-86010 (LEW) are presented, together with a reassessment of the type angrite Angra dos Reis (ADOR). The principal objectives of this study are to obtain precise radiometric ages, initial Sr isotopic compositions, and to search for the erstwhile presence of the short-lived nuclei {sup 146}Sm and {sup 26}Al via their daughter products. The isotopic compositions of Sm, U, Ca, and Ti were also measured. This allows a detailed appraisal to be made of the relations between, and the genealogy of, these two angrites.

  7. PrDOS: prediction of disordered protein regions from amino acid sequence.

    PubMed

    Ishida, Takashi; Kinoshita, Kengo

    2007-07-01

    PrDOS is a server that predicts the disordered regions of a protein from its amino acid sequence (http://prdos.hgc.jp). The server accepts a single protein amino acid sequence, in either plain text or FASTA format. The prediction system is composed of two predictors: a predictor based on local amino acid sequence information and one based on template proteins. The server combines the results of the two predictors and returns a two-state prediction (order/disorder) and a disorder probability for each residue. The prediction results are sent by e-mail, and the server also provides a web-interface to check the results.

  8. Use of Remote Sensing and Local Knowledge for Geoconservation of Regiao dos Lagos, Brazil

    NASA Astrophysics Data System (ADS)

    Avelar, S.; Vasconcelos, G.; Mansur, K. L.; Anjos, S. C.

    2013-12-01

    A series of lagoons can be found along the coastline of Rio de Janeiro, in the so-called Regiao dos Lagos. The lagoons differ in size, physicochemical, sedimentological and biological characteristics. Rare examples of litifying microbialites that produce stromatolites, the oldest fossils on Earth, can be found living in this lagoon system. The occurrence of stromatolites in the region is of great scientific interest because it enables the study of possible analogues of the earliest life on Earth. However, this region has been suffering from intense human activities and degradations. Geoconservation planning requires an assessment of the characteristics of the region and its potential threats. The primary goal of this study is to assess physical environmental changes and anthropogenic impacts over the last four decades in Regiao dos Lagos. Using a broad integrative assessment combining remote sensing, GIS, field studies and local knowledge of communities, land-cover and land-use classes were identified, as well as the main human activities impacting the environment. The seasonal and weekend tourism and urban sprawl in this coastal area of Rio de Janeiro triggers the occupation of new areas and the removal of natural vegetation, especially on lagoon margins. This disorderly occupation by an ever increasing population, with both legal and illegal constructions and the subsequent overload of the local infrastructure, e.g. increase of electrical energy consumption, volume of vehicles, pollution in air, water and soil and problems with water supply and wastewater treatment, are hastening the gradual degradation of the lake ecosystem. The main driving forces to environmental changes over the last four decades in Regiao dos Lagos were the change of dense vegetation, saline and bare soil classes into built-up areas, adding to the poor waste treatment and inadequate sewage disposal. This analysis provides a basis for a better control of anthropogenic impacts and

  9. The Intraplate Seismogenic Zone of Porto dos Gauchos in the Amazon Craton, Brazil

    NASA Astrophysics Data System (ADS)

    Barros, L. V.; Assumpcao, M. S.; Quintero, R. Q.

    2007-05-01

    The Porto dos Gauchos Seismogenic Zone (PGSZ), in the center north of Mato Grosso State, in the contact between the southern Amazonian Craton and northern Parecis Basin, represents one of the most important area of seismic activity in Brazil, with the largest magnitude ever observed in the stable continent of the South America plate (6.2 mb on January 31, 1955). Focal mechanism studies indicated a pure reverse faulting regime with compressional SHmax. oriented in SE-NW direction. After the 1955 earthquake, located in Serra do Tombador, a recurrent seismicity has been detected in Porto dos Gauchos, 100 km northeast of Serra do Tombador. No recent events have been detected in the area of the 1955 epicenter, suggesting a long recurrence time or mislocation of Serra do Tombador earthquake. The Porto dos Gauchos recurrent seismicity has been observed since 1959, when a 4.5 macroseismic estimated magnitude was felt by local inhabitants settled in that remote area two years earlier. In subsequent years, with deployment of regional stations in Brazilian Amazon region earthquakes were detected in 1981 (3.8 mb), 1989 (3.3 mb), 1993 (3.8 mb), 1996 (4.4 mb), 1997 (3.3 mb), and finally on March 10, 1998 (5.1 mb). The aftershocks of 1998 main shock were studied with a local network with up to eight 3- component stations. Such network detected more than 2500 events until December of 2002, when the network was deactivated, but only 100 were accurately located. Based on this set of events and a controlled source experiment we determined a 1-D velocity model for the area, a composite focal mechanism with P wave polarities, spectral analysis studies to estimate the source dimension, stress drop and moment magnitudes for the main shock and some others events of the set. On March 23, 2005 another shock occurred in the same seismogenic area of Porto dos Gauchos, with magnitude 4.7 to 5.0. One week later five stations were installed again to monitor the aftershock activity, detecting

  10. Computer-Based Testing: Test Site Security.

    ERIC Educational Resources Information Center

    Rosen, Gerald A.

    Computer-based testing places great burdens on all involved parties to ensure test security. A task analysis of test site security might identify the areas of protecting the test, protecting the data, and protecting the environment as essential issues in test security. Protecting the test involves transmission of the examinations, identifying the…

  11. Common Tests for Arrhythmia

    MedlinePlus

    ... more about Cardiac Event Recorders . Treadmill testing (Exercise Stress Test or Stress Test) This is an option that provokes arrhythmias and ... rhythm are monitored. Learn more about the exercise stress test . Tilt-Table Test A tilt test may be ...

  12. Mononucleosis spot test

    MedlinePlus

    Monospot test; Heterophile antibody test; Heterophile agglutination test; Paul-Bunnell test; Forssman antibody test ... The mononucleosis spot test is done when symptoms of mononucleosis are ... Fatigue Fever Large spleen (possibly) Sore throat Tender ...

  13. RighTime: A real time clock correcting program for MS-DOS-based computer systems

    NASA Technical Reports Server (NTRS)

    Becker, G. Thomas

    1993-01-01

    A computer program is described which effectively eliminates the misgivings of the DOS system clock in PC/AT-class computers. RighTime is a small, sophisticated memory-resident program that automatically corrects both the DOS system clock and the hardware 'CMOS' real time clock (RTC) in real time. RighTime learns what corrections are required without operator interaction beyond the occasional accurate time set. Both warm (power on) and cool (power off) errors are corrected, usually yielding better than one part per million accuracy in the typical desktop computer with no additional hardware, and RighTime increases the system clock resolution from approximately 0.0549 second to 0.01 second. Program tools are also available which allow visualization of RighTime's actions, verification of its performance, display of its history log, and which provide data for graphing of the system clock behavior. The program has found application in a wide variety of industries, including astronomy, satellite tracking, communications, broadcasting, transportation, public utilities, manufacturing, medicine, and the military.

  14. Reproductive Dynamics of Sterna hirundinacea Lesson, 1831 in Ilha dos Cardos, Santa Catarina, Brazil

    PubMed Central

    Fracasso, Hélio Augusto Alves; Branco, Joaquim Olinto; Efe, Márcio Amorim

    2014-01-01

    In this work, we intend to describe the reproductive dynamics of Sterna hirundinacea in an island from South Brazil. We studied the reproductive biology of this species in its natural environment and provide data on their growth, survival, and reproductive success in Ilha dos Cardos, Santa Catarina, South Brazil. Samplings were carried out daily on the island throughout the reproductive seasons of 2003, 2005, and 2006 and the different stages of development of the chicks were characterized according to age, length of the beak, and plumage characteristics. We provide a basic equation Lm = 167.91 (1 − e −0.062t−(−0.23)) to determine the approximate age of individuals using their body mass. The main cause of chick mortality on the island was natural (63.17% in 2003, 81.41% in 2005, and 79.96% in 2006), whereas predation contributed to mortality in a proportion of 38.83% in 2003, 18.59% in 2005, and 20.04% in 2006. The absence in the area of the chicks' main predator, Kelp gull (Larus dominicanus), the large number of chicks that reached the final stages of development, and their reproductive success demonstrate that Ilha dos Cardos is an important breeding site for the species in southern Brazil. PMID:24977100

  15. Electron spin resonance dating of megafauna from Lagoa dos Porcos, Piauí, Brazil.

    PubMed

    Kinoshita, Angela; Mayer, Elver; Ribau Mendes, Vinícius; Figueiredo, Ana Maria G; Baffa, Oswaldo

    2014-06-01

    Excavations performed at Lagoa dos Porcos site revealed a vast amount of extinct mammal fossil remains, becoming one of the richest palaeontological occurrences in the Serra da Capivara National Park region, a UNESCO World Heritage. Although anatomic and taxonomic aspects of extinct Quaternary mammals are relatively well known, chronologic information for deposits is rare. In this context, electron spin resonance (ESR) dating of megafauna samples provides important information for establishing a chronological background. This work presents the ESR dating of two teeth, one of Gomphotheriidae and other of Toxodontinae. Dose-response curves of each sample were constructed using spectra acquired with a JEOL FA-200 X-Band spectrometer resulting in equivalent dose (De) of 220 ± 40 Gy and 39 ± 2 Gy for Toxodontinae and Gomphotheriidae tooth, respectively. The conversion of De in age was made using ROSY ESR dating software resulting in 26 ± 4 and 22 ± 3 ka. These results place Lagoa dos Porcos fossil assemblage within the Late Pleistocene. These dates overlap with a period of abrupt increase in rainfall in northeast Brazil, and it is possible that this environmental change is related to the formation of this deposit.

  16. "Las Dos Cosas," or Why Mexican American Mothers Breast-Feed, But Not for Long.

    PubMed

    Flores, Angela; Anchondo, Inés; Huang, Cindy; Villanos, MariaTeresa; Finch, Casey

    2016-01-01

    To determine why mothers in El Paso, Texas, choose to breast-feed but not exclusively and why breast-feeding duration is short. This was a cross-sectional observational study of 300, mostly Mexican American, low-income mothers delivering at a county hospital who answered questions about breast-feeding and formula feeding, sociodemographics, and health habits. Most mothers (92.6%) in our study initiated breast-feeding, but only 20.3% breast-fed exclusively at the time of hospital discharge. Most mothers (73%) self-identified as Mexicans or Mexican Americans living on the border of the United States and Mexico. Mothers in our study chose to breast-feed if they decided to breast-feed during pregnancy, had breast-fed a previous child, had support from a female relative, and had attended college. Distinctively, most mothers in our study chose "las dos cosas" or to breast-feed and formula feed together early after birth. Acculturation failed to explain the breast-feeding decisions. Mexican American mothers who decided to breast-feed during pregnancy, breast-fed another child, attended college, and enlist a female relative's breast-feeding help were more likely to choose breast-feeding exclusively. Most Mexican American low-income mothers in our study chose "las dos cosas."

  17. RighTime: A real time clock correcting program for MS-DOS-based computer systems

    NASA Technical Reports Server (NTRS)

    Becker, G. Thomas

    1993-01-01

    A computer program is described which effectively eliminates the misgivings of the DOS system clock in PC/AT-class computers. RighTime is a small, sophisticated memory-resident program that automatically corrects both the DOS system clock and the hardware 'CMOS' real time clock (RTC) in real time. RighTime learns what corrections are required without operator interaction beyond the occasional accurate time set. Both warm (power on) and cool (power off) errors are corrected, usually yielding better than one part per million accuracy in the typical desktop computer with no additional hardware, and RighTime increases the system clock resolution from approximately 0.0549 second to 0.01 second. Program tools are also available which allow visualization of RighTime's actions, verification of its performance, display of its history log, and which provide data for graphing of the system clock behavior. The program has found application in a wide variety of industries, including astronomy, satellite tracking, communications, broadcasting, transportation, public utilities, manufacturing, medicine, and the military.

  18. Crystal Structures of the Response Regulator DosR From Mycobacterium Tuberculosis Suggest a Helix Rearrangement Mechanism for Phosphorylation Activation

    SciTech Connect

    Wisedchaisri, G.; Wu, M.; Sherman, D.R.; Hol, W.G.J.

    2009-05-26

    The response regulator DosR is essential for promoting long-term survival of Mycobacterium tuberculosis under low oxygen conditions in a dormant state and may be responsible for latent tuberculosis in one-third of the world's population. Here, we report crystal structures of full-length unphosphorylated DosR at 2.2 {angstrom} resolution and its C-terminal DNA-binding domain at 1.7 {angstrom} resolution. The full-length DosR structure reveals several features never seen before in other response regulators. The N-terminal domain of the full-length DosR structure has an unexpected ({beta}{alpha}){sub 4} topology instead of the canonical ({beta}{alpha}){sub 5} fold observed in other response regulators. The linker region adopts a unique conformation that contains two helices forming a four-helix bundle with two helices from another subunit, resulting in dimer formation. The C-terminal domain in the full-length DosR structure displays a novel location of helix {alpha}10, which allows Gln199 to interact with the catalytic Asp54 residue of the N-terminal domain. In contrast, the structure of the DosR C-terminal domain alone displays a remarkable unstructured conformation for helix {alpha}10 residues, different from the well-defined helical conformations in all other known structures, indicating considerable flexibility within the C-terminal domain. Our structures suggest a mode of DosR activation by phosphorylation via a helix rearrangement mechanism.

  19. Crystal Structures of the Response Regulator DosR from Mycobacterium tuberculosis Suggest a Helix Rearrangement Mechanism for Phosphorylation Activation

    PubMed Central

    Wisedchaisri, Goragot; Wu, Meiting; Sherman, David R.; Hol, Wim G. J.

    2008-01-01

    The response regulator DosR is essential for promoting long-term survival of Mycobacterium tuberculosis under low oxygen conditions in a dormant state and may be responsible for latent tuberculosis in one third of the world’s population. Here we report crystal structures of full-length unphosphorylated DosR at 2.2 Å and its C-terminal DNA-binding domain at 1.7 Å resolution. The full-length DosR structure reveals several features never seen before in other response regulators. The N-terminal domain of the full-length DosR structure has an unexpected (βα)4 topology instead of the canonical (βα)5 fold observed in other response regulators. The linker region adopts a unique conformation which contains two helices forming a four-helix bundle with two helices from another subunit, resulting in dimer formation. The C-terminal domain in the full-length DosR structure displays a novel location of helix α10 which provides Gln199 to interact with the catalytic Asp54 residue of the N-terminal domain. In contrast, the structure of the DosR C-terminal domain alone displays a remarkable unstructured conformation for helix α10 residues different from the well-defined helical conformations in all other known structures, indicating considerable flexibility within the C-terminal domain. Our structures suggest a mode of DosR activation by phosphorylation via a helix rearrangement mechanism. PMID:18353359

  20. A Direct Method to Extract Transient Sub-Gap Density of State (DOS) Based on Dual Gate Pulse Spectroscopy.

    PubMed

    Dai, Mingzhi; Khan, Karim; Zhang, Shengnan; Jiang, Kemin; Zhang, Xingye; Wang, Weiliang; Liang, Lingyan; Cao, Hongtao; Wang, Pengjun; Wang, Peng; Miao, Lijing; Qin, Haiming; Jiang, Jun; Xue, Lixin; Chu, Junhao

    2016-06-14

    Sub-gap density of states (DOS) is a key parameter to impact the electrical characteristics of semiconductor materials-based transistors in integrated circuits. Previously, spectroscopy methodologies for DOS extractions include the static methods, temperature dependent spectroscopy and photonic spectroscopy. However, they might involve lots of assumptions, calculations, temperature or optical impacts into the intrinsic distribution of DOS along the bandgap of the materials. A direct and simpler method is developed to extract the DOS distribution from amorphous oxide-based thin-film transistors (TFTs) based on Dual gate pulse spectroscopy (GPS), introducing less extrinsic factors such as temperature and laborious numerical mathematical analysis than conventional methods. From this direct measurement, the sub-gap DOS distribution shows a peak value on the band-gap edge and in the order of 10(17)-10(21)/(cm(3)·eV), which is consistent with the previous results. The results could be described with the model involving both Gaussian and exponential components. This tool is useful as a diagnostics for the electrical properties of oxide materials and this study will benefit their modeling and improvement of the electrical properties and thus broaden their applications.

  1. A Direct Method to Extract Transient Sub-Gap Density of State (DOS) Based on Dual Gate Pulse Spectroscopy

    NASA Astrophysics Data System (ADS)

    Dai, Mingzhi; Khan, Karim; Zhang, Shengnan; Jiang, Kemin; Zhang, Xingye; Wang, Weiliang; Liang, Lingyan; Cao, Hongtao; Wang, Pengjun; Wang, Peng; Miao, Lijing; Qin, Haiming; Jiang, Jun; Xue, Lixin; Chu, Junhao

    2016-06-01

    Sub-gap density of states (DOS) is a key parameter to impact the electrical characteristics of semiconductor materials-based transistors in integrated circuits. Previously, spectroscopy methodologies for DOS extractions include the static methods, temperature dependent spectroscopy and photonic spectroscopy. However, they might involve lots of assumptions, calculations, temperature or optical impacts into the intrinsic distribution of DOS along the bandgap of the materials. A direct and simpler method is developed to extract the DOS distribution from amorphous oxide-based thin-film transistors (TFTs) based on Dual gate pulse spectroscopy (GPS), introducing less extrinsic factors such as temperature and laborious numerical mathematical analysis than conventional methods. From this direct measurement, the sub-gap DOS distribution shows a peak value on the band-gap edge and in the order of 1017-1021/(cm3·eV), which is consistent with the previous results. The results could be described with the model involving both Gaussian and exponential components. This tool is useful as a diagnostics for the electrical properties of oxide materials and this study will benefit their modeling and improvement of the electrical properties and thus broaden their applications.

  2. DOS-HEATING6: A general conduction code with nuclear heat generation derived from DOT-IV transport calculations

    SciTech Connect

    Williams, M.L.; Yuecel, A.; Nadkarny, S.

    1988-05-01

    The HEATING6 heat conduction code is modified to (a) read the multigroup particle fluxes from a two-dimensional DOT-IV neutron- photon transport calculation, (b) interpolate the fluxes from the DOT-IV variable (optional) mesh to the HEATING6 control volume mesh, and (c) fold the interpolated fluxes with kerma factors to obtain a nuclear heating source for the heat conduction equation. The modified HEATING6 is placed as a module in the ORNL discrete ordinates system (DOS), and has been renamed DOS-HEATING6. DOS-HEATING6 provides the capability for determining temperature distributions due to nuclear heating in complex, multi-dimensional systems. All of the original capabilities of HEATING6 are retained for the nuclear heating calculation; e.g., generalized boundary conditions (convective, radiative, finned, fixed temperature or heat flux), temperature and space dependent thermal properties, steady-state or transient analysis, general geometry description, etc. The numerical techniques used in the code are reviewed and the user input instructions and JCL to perform DOS-HEATING6 calculations are presented. Finally a sample problem involving coupled DOT-IV and DOS-HEATING6 calculations of a complex space-reactor configurations described, and the input and output of the calculations are listed. 10 refs., 11 figs., 6 tabs.

  3. A Direct Method to Extract Transient Sub-Gap Density of State (DOS) Based on Dual Gate Pulse Spectroscopy

    PubMed Central

    Dai, Mingzhi; Khan, Karim; Zhang, Shengnan; Jiang, Kemin; Zhang, Xingye; Wang, Weiliang; Liang, Lingyan; Cao, Hongtao; Wang, Pengjun; Wang, Peng; Miao, Lijing; Qin, Haiming; Jiang, Jun; Xue, Lixin; Chu, Junhao

    2016-01-01

    Sub-gap density of states (DOS) is a key parameter to impact the electrical characteristics of semiconductor materials-based transistors in integrated circuits. Previously, spectroscopy methodologies for DOS extractions include the static methods, temperature dependent spectroscopy and photonic spectroscopy. However, they might involve lots of assumptions, calculations, temperature or optical impacts into the intrinsic distribution of DOS along the bandgap of the materials. A direct and simpler method is developed to extract the DOS distribution from amorphous oxide-based thin-film transistors (TFTs) based on Dual gate pulse spectroscopy (GPS), introducing less extrinsic factors such as temperature and laborious numerical mathematical analysis than conventional methods. From this direct measurement, the sub-gap DOS distribution shows a peak value on the band-gap edge and in the order of 1017–1021/(cm3·eV), which is consistent with the previous results. The results could be described with the model involving both Gaussian and exponential components. This tool is useful as a diagnostics for the electrical properties of oxide materials and this study will benefit their modeling and improvement of the electrical properties and thus broaden their applications. PMID:27297030

  4. First-principle calculation of the electronic structure, DOS and effective mass TlInSe2

    NASA Astrophysics Data System (ADS)

    Ismayilova, N. A.; Orudzhev, G. S.; Jabarov, S. H.

    2017-05-01

    The electronic structure, density of states (DOS), effective mass are calculated for tetragonal TlInSe2 from first principle in the framework of density functional theory (DFT). The electronic structure of TlInSe2 has been investigated by Quantum Wise within GGA. The calculated band structure by Hartwigsen-Goedecker-Hutter (HGH) pseudopotentials (psp) shows both the valence band maximum and conduction band minimum located at the T point of the Brillouin zone. Valence band maximum at the T point and the surrounding parts originate mainly from 6s states of univalent Tl ions. Bottom of the conduction band is due to the contribution of 6p-states of Tl and 5s-states of In atoms. Calculated DOS effective mass for holes and electrons are mDOS h∗ = 0.830m e, mDOS h∗ = 0.492m e, respectively. Electron effective masses are fairly isotropic, while the hole effective masses show strong anisotropy. The calculated electronic structure, density of states and DOS effective masses of TlInSe2 are in good agreement with existing theoretical and experimental results.

  5. Turbine blade testing methods

    NASA Technical Reports Server (NTRS)

    1984-01-01

    Testing procedures which could be used to model test turbine blades are developed. The methods studied were methods which used and extended current modal testing procedures. An acoustical impacting testing method was perfected for testing small turbine blades.

  6. Glucose urine test

    MedlinePlus

    Urine sugar test; Urine glucose test; Glucosuria test; Glycosuria test ... After you provide a urine sample, it is tested right away. The health care provider uses a dipstick made with a color-sensitive pad. The ...

  7. Heart failure - tests

    MedlinePlus

    CHF - tests; Congestive heart failure - tests; Cardiomyopathy - tests; HF - tests ... An echocardiogram (echo) is a test that uses sound waves to create a moving picture of the heart. The picture is much more detailed than a plain ...

  8. Tests Related to Pregnancy

    MedlinePlus

    ... to learn. Search form Search Tests related to pregnancy You are here Home Testing & Services Testing for ... to Genetic Counseling . What Are Tests Related to Pregnancy? Pregnancy related testing is done before or during ...

  9. Test and control computer user's guide for a digital beam former test system

    NASA Technical Reports Server (NTRS)

    Alexovich, Robert E.; Mallasch, Paul G.

    1992-01-01

    A Digital Beam Former Test System was developed to determine the effects of noise, interferers and distortions, and digital implementations of beam forming as applied to the Tracking and Data Relay Satellite 2 (TDRS 2) architectures. The investigation of digital beam forming with application to TDRS 2 architectures, as described in TDRS 2 advanced concept design studies, was conducted by the NASA/Lewis Research Center for NASA/Goddard Space Flight Center. A Test and Control Computer (TCC) was used as the main controlling element of the digital Beam Former Test System. The Test and Control Computer User's Guide for a Digital Beam Former Test System provides an organized description of the Digital Beam Former Test System commands. It is written for users who wish to conduct tests of the Digital Beam forming Test processor using the TCC. The document describes the function, use, and syntax of the TCC commands available to the user while summarizing and demonstrating the use of the commands wtihin DOS batch files.

  10. Age and isotopic relationships among the angrites Lewis Cliff 86010 and Angra dos Reis

    NASA Technical Reports Server (NTRS)

    Lugmair, G. W.; Galer, S. J. G.

    1992-01-01

    The paper presents results of a wide-ranging isotopic investigation of the the Antarctic angrite LEW-86010 (LEW), and reassesses the type angrite Angra dos Reis (ADOR) in order to obtain precise radiometric ages and initial Sr isotopic compositions, and to search for the erstwhile presence of the short-lived nuclei Sm-146 and Al-26 via their daughter products. The isotopic compositions of Sm, U, Ca, and Ti were measured to allow a detailed appraisal to be made of the relations between, and the geneology of, these two angrites. LEW proves to be severely contaminated with modern terrestrial Pb, which is shown to result from terrestrial weathering. Concordant Pb-Pb model ages of pyroxene separates are obtained; uranium isotopic compositions are normal within error. Overall, striking age and isotopic similarities between LEW and ADOR were found, suggesting almost simultaneous production on the same asteroid, even though recent experimental studies imply that the two are not comagmatic.

  11. Estudio dinámico de un potencial perturbador dependiente de dos parámetros

    NASA Astrophysics Data System (ADS)

    Miloni, O.; Brunini, A.

    El objeto del presente trabajo consiste en el estudio dinámico de un sistema dinámico caracterizado por la función hamiltoniana correspondiente a un satélite planetario perturbado por la acción del Sol y del achatamiento del planeta madre. Cuando dicha Hamiltoniana se promedia respecto de los términos de corto período, esta queda con dos grados de libertad, y su estudio puede ser realizado con las herramientas clásicas de la dinámica no-lineal. Se tratará de determinar regiones regulares y caóticas de movimiento. En el caso de estas últimas, es de particular interés la determinación de su orígen.

  12. On securing wireless sensor network--novel authentication scheme against DOS attacks.

    PubMed

    Raja, K Nirmal; Beno, M Marsaline

    2014-10-01

    Wireless sensor networks are generally deployed for collecting data from various environments. Several applications specific sensor network cryptography algorithms have been proposed in research. However WSN's has many constrictions, including low computation capability, less memory, limited energy resources, vulnerability to physical capture, which enforce unique security challenges needs to make a lot of improvements. This paper presents a novel security mechanism and algorithm for wireless sensor network security and also an application of this algorithm. The proposed scheme is given to strong authentication against Denial of Service Attacks (DOS). The scheme is simulated using network simulator2 (NS2). Then this scheme is analyzed based on the network packet delivery ratio and found that throughput has improved.

  13. Age and isotopic relationships among the angrites Lewis Cliff 86010 and Angra dos Reis

    NASA Technical Reports Server (NTRS)

    Lugmair, G. W.; Galer, S. J. G.

    1992-01-01

    The paper presents results of a wide-ranging isotopic investigation of the the Antarctic angrite LEW-86010 (LEW), and reassesses the type angrite Angra dos Reis (ADOR) in order to obtain precise radiometric ages and initial Sr isotopic compositions, and to search for the erstwhile presence of the short-lived nuclei Sm-146 and Al-26 via their daughter products. The isotopic compositions of Sm, U, Ca, and Ti were measured to allow a detailed appraisal to be made of the relations between, and the geneology of, these two angrites. LEW proves to be severely contaminated with modern terrestrial Pb, which is shown to result from terrestrial weathering. Concordant Pb-Pb model ages of pyroxene separates are obtained; uranium isotopic compositions are normal within error. Overall, striking age and isotopic similarities between LEW and ADOR were found, suggesting almost simultaneous production on the same asteroid, even though recent experimental studies imply that the two are not comagmatic.

  14. Measured oxygen fugacities of the Angra dos Reis achondrite as a function of temperature

    USGS Publications Warehouse

    Brett, R.; Stephen, Huebner J.; Sato, M.

    1977-01-01

    Measurements of the oxygen fugacity (f{hook}O2) as a function of temperature (T) were made on an interior bulk sample of the cumulate achondrite, Angra dos Reis. Data clustered between the f{hook}O2-T relationship of the iron-wu??stite assemblage and 1.2 log atm units above iron-wu??stite. Interpretation of the data indicates that, throughout most of the cooling history of the meteorite, f{hook}O2 values were defined by equilibria involving iron-bearing species at values close to the f{hook}O2 of the assemblage iron-wu??stite. Measured f{hook}O2 data are compatible with crystallization and cooling at pressures greater than 50 bars. ?? 1977.

  15. Revisiting DoS Attacks and Privacy in RFID-Enabled Networks

    NASA Astrophysics Data System (ADS)

    D'Arco, Paolo; Scafuro, Alessandra; Visconti, Ivan

    Vaudenay presented in [ASIACRYPT 2007] a general RFID security and privacy model that abstracts some previous works in a single, concise, and much more understandable framework. He introduced eight distinct notions of privacy, corresponding to adversaries of different strength, and proved some possibility and impossibility results for such privacy notions. However, some interesting problems as: 1) achieving stronger privacy using low-cost tags (i.e., tags that usually can not perform public-key cryptography), 2) achieving stronger privacy in presence of side-channel attacks (e.g., DoS attacks, detection of the outputs of identification protocols), and 3) achieving stronger privacy under standard complexity-theoretic assumptions, are still left open.

  16. An MS-DOS-based program for analyzing plutonium gamma-ray spectra

    SciTech Connect

    Ruhter, W.D.; Buckley, W.M.

    1989-09-07

    A plutonium gamma-ray analysis system that operates on MS-DOS-based computers has been developed for the International Atomic Energy Agency (IAEA) to perform in-field analysis of plutonium gamma-ray spectra for plutonium isotopics. The program titled IAEAPU consists of three separate applications: a data-transfer application for transferring spectral data from a CICERO multichannel analyzer to a binary data file, a data-analysis application to analyze plutonium gamma-ray spectra, for plutonium isotopic ratios and weight percents of total plutonium, and a data-quality assurance application to check spectral data for proper data-acquisition setup and performance. Volume 3 contains the software listings for these applications.

  17. Draft Test Guideline: Mysid Chronic Toxicity Test

    EPA Pesticide Factsheets

    The following draft test guideline is part of a series of test guidelines that have been developed by EPA for use in the testing of pesticides and toxic substances, and the development of test data for submission to the Agency for review.

  18. Draft Test Guideline: Chironomid Sediment Toxicity Test

    EPA Pesticide Factsheets

    The following draft test guideline is part of a series of test guidelines that have been developed by EPA for use in the testing of pesticides and toxic substances, and the development of test data for submission to the Agency for review.

  19. Tests, Testing, and Genuine School Reform

    ERIC Educational Resources Information Center

    Walberg, Herbert J., Ed.

    2011-01-01

    The pressing need to improve achievement in American schools is widely recognized. In "Tests, Testing, and Genuine School Reform," Herbert J. Walberg draws on scientific studies of tests and their uses to inform citizens, educators, and policy makers about well-established principles of testing, current problems, and promising evidence-based…

  20. Model test plan for HV pulse testing

    NASA Astrophysics Data System (ADS)

    Dunbar, W. G.; Schweickart, D. L.

    This pulse test plan will contain the configuration, operation and maintenance test requirements, equipment requirements, and procedures for high-voltage pulse testing of aerospace high power experimental and operational parts and equipment. The plan details peak voltage and test pulse rise time and fall time as they are applied to evaluate electrical insulation within electrical and electronic system components.

  1. Test Review: Kaufman Test of Educational Achievement.

    ERIC Educational Resources Information Center

    Lewandowski, Lawrence J.

    1986-01-01

    Appraises the Kaufman Test of Educational Achievement, an individually administered test of reading, spelling, and mathematics for children in grades 1 through 12. Considers the test well-conceived and carefully constructed, though not sufficiently tested for validity in the field. (SRT)

  2. Draft Test Guideline: Penaeid Acute Toxicity Test

    EPA Pesticide Factsheets

    The following draft test guideline is part of a series of test guidelines that have been developed by EPA for use in the testing of pesticides and toxic substances, and the development of test data for submission to the Agency for review.

  3. Draft Test Guideline: Daphnid Chronic Toxicity Test

    EPA Pesticide Factsheets

    The following draft test guideline is part of a series of test guidelines that have been developed by EPA for use in the testing of pesticides and toxic substances, and the development of test data for submission to the Agency for review.

  4. Draft Test Guideline: Mysid Acute Toxicity Test

    EPA Pesticide Factsheets

    The following draft test guideline is part of a series of test guidelines that have been developed by EPA for use in the testing of pesticides and toxic substances, and the development of test data for submission to the Agency for review.

  5. Draft Test Guideline: Gammarid Acute Toxicity Test

    EPA Pesticide Factsheets

    The following draft test guideline is part of a series of test guidelines that have been developed by EPA for use in the testing of pesticides and toxic substances, and the development of test data for submission to the Agency for review.

  6. Google Test MPI Listener

    SciTech Connect

    Oxberry, Geoffrey

    2016-11-24

    Google Test MPI Listener is a plugin for the Google Test c++ unit testing library that organizes test output of software that uses both the MPI parallel programming model and Google Test. Typically, such output is ordered arbitrarily and disorganized, making difficult the process of interpreting test output. This plug organizes output in MPI rank order, enabling easy interpretation of test results.

  7. What Is Diagnostic Testing?

    MedlinePlus

    ... Primary care providers Specialists Getting covered Research Basic science research Research in people ... screening Diagnostic testing Direct-to-consumer genetic testing Newborn screening Pharmacogenomic testing ...

  8. Testing the limits of testing effects using completion tests.

    PubMed

    Hinze, Scott R; Wiley, Jennifer

    2011-04-01

    Recent work on testing effects has shown that retrieval practice can facilitate memory even for complex prose materials (Roediger & Karpicke, 2006a, 2006b). In three experiments the current study explores the effectiveness of retrieval practice on fill-in-the-blank (FITB) tests requiring the recall of specific words or phrases from a text. Final tests included both repeated items that were directly taken from initial tests, and related items. In Experiment 1, with a 2-day delay between initial and final tests, FITB testing benefited performance only on repeated items. In Experiment 2 a 7-day delay between testing sessions led to more robust effects on repeated items. However, once again no benefits were seen for related items. In Experiment 3 the scope of retrieval was varied by comparing FITB tests to paragraph recall tests requiring retrieval of all sentences following a topic sentence. Only the more open-ended recall practice demonstrated improvements in transfer to novel questions. The results suggest that scope or type of processing required during retrieval practice is likely a critical factor in whether testing will have specific or robust benefits.

  9. Helicobacter pylori Test

    MedlinePlus

    ... urease test (RUT) for H. pylori Formal name: Helicobacter pylori Related tests: Gastrin At a Glance Test ... else I should know? How is it used? Helicobacter pylori testing is used to diagnose an infection ...

  10. Allergy Skin Tests

    MedlinePlus

    ... allergic rhinitis) Allergic asthma Dermatitis (eczema) Food allergies Penicillin allergy Bee venom allergy Latex allergy Skin tests are ... may recommend this test to check for an allergy to insect venom or penicillin. Patch test Patch testing is generally done to ...

  11. Blood Culture Test

    MedlinePlus

    ... Complete Blood Count , Urine Culture , Bacterial Wound Culture , Gram Stain , CSF Analysis , Fungal Tests , Susceptibility Testing At a ... Other related tests that may be performed include: Gram stain —a relatively quick test used to detect and ...

  12. Genetic Testing (For Parents)

    MedlinePlus

    ... Habits for TV, Video Games, and the Internet Genetic Testing KidsHealth > For Parents > Genetic Testing Print A ... blood, skin, bone, or other tissue is needed. Genetic Testing During Pregnancy For genetic testing before birth, ...

  13. Overview of Imaging Tests

    MedlinePlus

    ... examined (called contrast agents or dyes) Risks of Radiation in Medical Imaging Imaging tests that use radiation, ... diagnostic test often outweighs the potential risks. Comparing Radiation Doses For Different Tests* Imaging Test Number of ...

  14. Coccidioides precipitin test

    MedlinePlus

    Coccidioidomycosis antibody test ... There is no special preparation for the test. ... The precipitin test is one of several tests that can be done to determine if you are infected with the fungus ...

  15. Lactose tolerance tests

    MedlinePlus

    Hydrogen breath test for lactose tolerance ... Two common methods include: Lactose tolerance blood test Hydrogen breath test The hydrogen breath test is the preferred method. It measures the amount of hydrogen in the air you breathe out. ...

  16. Listening: Who's Testing What?

    ERIC Educational Resources Information Center

    Watson, Kittie W.

    1984-01-01

    Discusses how listening is now being tested as three separate abilities, how test validity is affected by administration factors, criticisms of listening skills tests currently available, and criteria for development of reliable and valid listening tests. (MBR)

  17. Heart Health Tests

    MedlinePlus

    ... is easier to treat. Blood tests and heart health tests can help find heart diseases or identify ... diseases. There are several different types of heart health tests. Your doctor will decide which test or ...

  18. Listening: Who's Testing What?

    ERIC Educational Resources Information Center

    Watson, Kittie W.

    1984-01-01

    Discusses how listening is now being tested as three separate abilities, how test validity is affected by administration factors, criticisms of listening skills tests currently available, and criteria for development of reliable and valid listening tests. (MBR)

  19. Blood sugar test

    MedlinePlus

    ... sugar; Blood sugar level; Fasting blood sugar; Glucose test; Diabetic screening - blood sugar test; Diabetes - blood sugar test ... The test may be done in the following ways: After you have not eaten anything for at least 8 ...

  20. Sweat electrolytes test

    MedlinePlus

    Sweat test; Sweat chloride; Iontophoretic sweat test ... No special steps are needed before this test. ... The test is not painful. Some people have a tingling feeling at the site of the electrode. This feeling ...

  1. Ketones urine test

    MedlinePlus

    Ketone bodies - urine; Urine ketones; Ketoacidosis - urine ketones test; Diabetic ketoacidosis - urine ketones test ... Urine ketones are usually measured as a "spot test." This is available in a test kit that ...

  2. Evaluation and Tests

    MedlinePlus

    ... Visiting Your Doctor Evaluation + Tests Autonomic Testing Nerve/Skin/Muscle Biopsy Computerized Axial Tomography Scan (CAT) Electrodiagnostic Testing Lumbar Puncture Imaging Quantitative Sensory Testing (QST) Peripheral Neuropathy Treatments Facts + Risk Factors ...

  3. Growth hormone suppression test

    MedlinePlus

    GH suppression test; Glucose loading test; Acromegaly - blood test; Gigantism - blood test ... drink anything. You then drink a solution containing glucose (sugar). You may be told to drink slowly ...

  4. Busy test week

    NASA Image and Video Library

    2012-11-08

    NASA recorded a historic week Nov. 5-9, conducting tests on all three stands in the E Test Complex at John C. Stennis Space Center. Inset images show the types of tests conducted on the E-1 Test Stand (right), the E-2 Test Stand (left) and the E-3 Test Stand (center). The E-1 photo is from an early October test and is provided courtesy of Blue Origin. Other photos are from tests conducted the week of Nov. 5.

  5. CRYSTAL FILTER TEST SET

    DTIC Science & Technology

    CRYSTAL FILTERS, *HIGH FREQUENCY, *RADIOFREQUENCY FILTERS, AMPLIFIERS, ELECTRIC POTENTIAL, FREQUENCY, IMPEDANCE MATCHING , INSTRUMENTATION, RADIOFREQUENCY, RADIOFREQUENCY AMPLIFIERS, TEST EQUIPMENT, TEST METHODS

  6. Professional Issues in Testing.

    ERIC Educational Resources Information Center

    Pryor, Robert G. L.

    1991-01-01

    The following issues in psychological testing in Australia are reviewed: (1) commercialization of testing; (2) test user qualifications; and (3) computerization of testing. Proposed solutions include development of user guidelines, accreditation standards, test standards, and a network of test data information; and regulation by a professional…

  7. GED Testing Fact Sheet

    ERIC Educational Resources Information Center

    GED Testing Service, 2009

    2009-01-01

    This GED Testing fact sheet provides information on: (1) GED[R] Tests; (2) Versions and Editions of the GED Tests; (3) Earning a Credential; (4) GED Testing Service[R]; (5) History of the GED Tests; (6) Who Accepts the GED Credential; (7) Public/Private Partnership of GEDTS; (8) Renowned GED Credential Recipients; (9) GED Testing Numbers for 2008;…

  8. Automatic Test Program Generation.

    DTIC Science & Technology

    1978-03-01

    presents a test description language, NOPAL , in which a user may describe diagnostic tests, and a software system which automatically generates test...programs for an automatic test equipment based on the descriptions of tests. The software system accepts as input the tests specified in NOPAL , performs

  9. Intelligent test integration system

    NASA Technical Reports Server (NTRS)

    Sztipanovits, J.; Padalkar, S.; Rodriguez-Moscoso, J.; Kawamura, K.; Purves, B.; Williams, R.; Biglari, H.

    1988-01-01

    A new test technology is described which was developed for space system integration. The ultimate purpose of the system is to support the automatic generation of test systems in real time, distributed computing environments. The Intelligent Test Integration System (ITIS) is a knowledge based layer above the traditional test system components which can generate complex test configurations from the specification of test scenarios.

  10. Improving Your Test Questions.

    ERIC Educational Resources Information Center

    Ory, John C.

    Information on the uses, advantages, and limitations of different types of test items is presented for college faculty, along with guidelines for developing test items. Included is advice on: choosing between objective and subjective test items, when essay tests or objective tests are appropriate, and when either essay or objective tests can be…

  11. Boilerplate Test Article (BTA) Modal Test Correlation

    NASA Technical Reports Server (NTRS)

    Vassilakos, Gregory J.; Corliss, James M.; Mark, Stephen D.

    2017-01-01

    Modal testing of the Boilerplate Test Article (BTA) was performed to obtain data to determine the accuracy of the BTA LS- DYNA model in determining the structural response. The BTA is a full-scale steel and aluminum test article that is representative of the Orion Crew Module (CM), with similar outer-mold-line geometry, mass properties, and some similar structural features, including an internal pressure vessel connected to a backshell and heatshield via longerons, Retention and Release (R&R) brackets, and an aft ring. The structural design of the Orion CM is being developed based on LS-DYNA water landing simulations. To obtain data to evaluate the accuracy of LS-DYNA water impact landing simulations, a series of BTA water impacts was conducted at NASA Langley Research Center (LaRC). Discrepancies between test and simulation data are attributed to three causes:(1) Test data variability and uncertainty, (2) LS-DYNA water model and fluid-structure coupling approximations; and (3) LS-DYNA structural modeling approximations. Two activities have been undertaken to assess the accuracy of the BTA LS-DYNA structural model separately from the fluid-structure coupling portion of the water landing simulations: 1) modal testing, and 2) static load testing. The results from the static load tests are documented in a separate report. For the modal test series, the following tests were performed: (1) BTA Fully-Assembled Model Test, (2) BTA Backshell Removed Modal Test, (3) Standalone Heatshield Modal Test, (4) Standalone Windward Backshell Panel Modal Test; and (5) Standalone Leeward Backshell Panel Modal Test. This report documents findings from correlation of modal test data with LS-DYNA modal analysis results. The following figures illustrate the correlation of the modal frequencies. Where multiple closely spaced modes have been identified, the points representing the upper and lower frequencies are shown connected by a dotted line.

  12. Testing and Tests: Pedagogical Versus Public Uses.

    ERIC Educational Resources Information Center

    Anderson, Scarvia B.; Dobbin, John E.

    Public uses of tests and testing include all those materials and practices in observation of human behavior that are intended to help administrators, school boards, legislatures, taxpayers, and others to evaluate their educational systems. Pedagogical uses of tests, on the other hand, cover all those materials and practices in observation of human…

  13. From Test Takers to Test Makers

    ERIC Educational Resources Information Center

    Smith, Kari

    2009-01-01

    As a classroom teacher, Kari Smith realized that traditional objective tests don't always assess what students actually know. But tests are so deeply embedded in the education system that it would be difficult to do away with them entirely. Smith decided to make tests into learning tools. In this article, Smith describes three strategies for…

  14. Test Technical Manual 2014 GED® Test

    ERIC Educational Resources Information Center

    GED Testing Service, 2014

    2014-01-01

    This manual was written to provide technical information regarding the General Educational Development (GED®) test as evidence that the GED® test is technically sound. Throughout this manual, documentation is provided regarding the development of the GED® test and data collection activities, as well as evidence of reliability and validity. This…

  15. From Test Takers to Test Makers

    ERIC Educational Resources Information Center

    Smith, Kari

    2009-01-01

    As a classroom teacher, Kari Smith realized that traditional objective tests don't always assess what students actually know. But tests are so deeply embedded in the education system that it would be difficult to do away with them entirely. Smith decided to make tests into learning tools. In this article, Smith describes three strategies for…

  16. Seroprevalence of Rickettsia bellii and Rickettsia felis in dogs, São José dos Pinhais, State of Paraná, Brazil.

    PubMed

    Fortes, Fernanda Silva; Silveira, Iara; Moraes-Filho, Jonas; Leite, Ronaldo Viana; Bonacim, José Edivaldo; Biondo, Alexander Welker; Labruna, Marcelo Bahia; Molento, Marcelo Beltrão

    2010-01-01

    Brazilian spotted fever (BSF) is a vector-borne zoonosis caused by Rickettsia rickettsii bacteria. Dogs can be host sentinels for this bacterium. The aim of the study was to determine the presence of antibodies against Rickettsia spp. in dogs from the city of São José dos Pinhais, State of Paraná, Southern Brazil, where a human case of BSF was first reported in the state. Between February 2006 and July 2007, serum samples from 364 dogs were collected and tested at 1:64 dilutions by indirect immunofluorescence assay (IFA) against R. rickettsii and R. parkeri. All sera that reacted at least to one of Rickettsia species were tested against the six main Rickettsia species identified in Brazil: R. rickettsii, R. parkeri, R. bellii, R. rhipicephali, R. amblyommii and R. felis. Sixteen samples (4.4%) reacted to at least one Rickettsia species. Among positive animals, two dogs (15.5%) showed suggestive titers for R. bellii exposure. One sample had a homologous reaction to R. felis, a confirmed human pathogen. Although Rickettsia spp. circulation in dogs in the area studied may be considered at low prevalence, suggesting low risk of human infection, the present data demonstrate for the first time the exposure of dogs to R. bellii and R. felis in Southern Brazil.

  17. Sonar Test and Test Instrumentation Support.

    DTIC Science & Technology

    1976-11-10

    6487 < rM SEL ECTE CO, BU 9 1 Approved for public release;distribution unlimited. 611 095 A DNAR IA ST WI EST INSTRUMENTATIONJUPPORT.J ) Quaterly ...INSTRUMENTATION TEST AND EVALUATION 17 A. Introduction 17 B. Operational Testing of the AN/WQM-7 Sonar Test Set 17 C. AN/SQM-( ) Feasibility Study 19 VII. STUDY ...AN/WQM-5 Sonar Test Set Field Support IV. Special Purpose Passive Sonar Systems Support V. Sonar Instrumentation Test and Evaluation VI. Study of

  18. Creating a Global Fiducials Program (GFP) Site: Lago Cachet Dos example in Chile

    NASA Astrophysics Data System (ADS)

    Friesen, B. A.; Nimick, D. A.; Wilson, E. M.

    2012-12-01

    The USGS has been acquiring remotely sensed imagery from all over the world, collecting thousands of images at more than 200 sites, and creating Literal Image Derived Products (LIDPs) as part of the Global Fiducials Program (GFP). The GFP program enables scientists to use these images to study our rapidly changing planet at carefully selected locations around the world. New GFP Sites are created and added each year. Researchers at the University of Alaska, for instance, added areas susceptible to coastal erosion for monitoring the long-term effects of high tides and storms. This presentation will guide you through the process of creating a new GFP site for your area of interest. We will describe the components of the GFP and its archive, the Global Fiducials Library. The Global Fiducials Program—Initial Site Proposal form will be presented and we will show you how to complete each component in order to propose a new site. Lago Cachet Dos, a glacier-dammed lake in southern Chile, is currently being proposed as a new GFP site and will be used as the example for this exercise. In addition, USGS web sites will be used to illustrate how a long-term imagery record can tell a story and to demonstrate viewing and downloading the type of data that will be available online and free of charge through the GFP.

  19. A proposed application of an industrial DOS computer for distribution substation monitoring and control

    SciTech Connect

    Batur, I. . Aselsan Military); Guven, A.N.; Ozay, N. . Electrical Engineering Dept.)

    1994-04-01

    This paper presents the design and implementation of an intelligent controller intended for use in distribution substations to perform monitoring and control duties within the framework of distribution automation needs. The hardware of the developed controller is a DOS based industrial computer running on ECB-BUS. The application software handles all input/output tasks, data collection, manipulation and control decisions with its flexible structure. This embedded controller measures bus voltage, transformer and feeder currents and calculates the real and reactive power, power factor, frequency, and total harmonic distortion of voltage and current. In addition to its local and remote data acquisition and monitoring functions by means of console and SCADA outputs, the system, through its relay outputs, is capable of performing automation tasks such as integrated Volt/Var control, overload and underfrequency detection and load shedding at the substation level. This reliable, high capacity and low cost system is completely programmable so that it can handle new requirements with new configurations easily.

  20. Environmental discrimination among soft-bottom mollusc associations off Lagoa dos Patos, South Brazil

    NASA Astrophysics Data System (ADS)

    Absalão, R. S.

    1991-01-01

    Sublittoral benthic molluscs established in the outlet of Lagoa dos Patos (South Brazil) were sampled with a rectangular dredge and the malacological associations delineated by cluster analysis (WPGA) using the Baroni-Urbani and Buser similarity index. Three main associations were characterized in bands parallel to the beach with relative concordance with specific sedimentological facies. The multiple discriminant analysis showed that there was a high correlation between these associations and the following environmental parameters: depth, average grain size, skewness of the sediment, medium sand, coarse sand, total sand and total mud. The effect of reducing the multidimensionality of the data to two factors, ecologically explained, brings out the importance of depth, average grain size, total sand and total mud. The first appears to be a bathymetric gradient of stability/disturbance; the disturbance from storms becomes less frequent with increasing depth. This is partially supported by the results of the Caswell neutral model, and is in agreement with the intermediate disturbance hypothesis predictions. The second sedimentological factor is the relative percentages of sand and mud in determining the specific composition of these associations.

  1. Endocrine disruptors in water filters used in the Rio dos Sinos Basin region, Southern Brazil.

    PubMed

    Furtado, C M; von Mühlen, C

    2015-05-01

    The activated carbon filter is used in residences as another step in the treatment of drinking water, based on a physical-chemical process to absorb pollutants that are not removed in conventional treatment. Endocrine disruptors (EDCs) are exogenous substances or mixtures of substances that acts on the endocrine system similarly to the endogenously produced hormones, triggering malfunctions and harmful changes to human and animal health. The objective of the present work was to study EDCs through semi-quantitative analysis of residential water filters collected in the region of Rio dos Sinos basin, focusing on two specific classes: hormones and phenols. The solid phase extraction principle was used for the extraction of compounds and gas chromatography coupled with mass spectrometry for the separation and characterization of EDCs. Four samples of residential filters collected from public water distribution and artesian wells, from the cities of Novo Hamburgo and São Leopoldo were analysed. Using the developed methodology, it was possible to detect and comparatively quantify selected EDCs in all studied samples, which indicates the presence of these contaminants in drinking water from different sources.

  2. Urano y sus dos satélites irregulares recientemente descubiertos

    NASA Astrophysics Data System (ADS)

    Parisi, M. G.; Brunini, A.

    Hasta hace poco tiempo, Urano era el único de los Planetas Gigantes que no poseía satélites irregulares. Esto lo diferenciaba del resto de los planetas Gigantes, al igual que la peculiar oblicuidad de su eje de spin. La gran inclinación de su eje de rotación se debe probablemente a una colisión que sufrió el planeta con otro embrión planetario al final del proceso de formación. Esta colisión habría desligado satélites exteriores preexistentes del planeta. Recientemente se han descubierto dos satélites irregulares de Urano, lo que introduce algunas nuevas cotas y condiciones en el escenario de la "Hipótesis de la Gran Colisión" . Los satélites irregulares de Urano tuvieron que ser capturados en una etapa posterior a la del escenario de la Gran Colisión, de no ser así, hubieran sido eyectados del sistema por el impulso impartido con ese gran impacto. En este trabajo, se discuten los posibles mecanismos de captura de los satélites irregulares y se presenta un nuevo posible mecanismo para dicha captura.

  3. Dos and don'ts for using climate information for water resource planning and management

    NASA Astrophysics Data System (ADS)

    Vano, J. A.; Clark, M. P.; Nijssen, B.; Wood, A.; Gutmann, E. D.; Arnold, J.

    2016-12-01

    Increasingly water managers and planners are being required to incorporate climate change information into their planning processes. This is generally seen as a step in the right direction. However, the continuously evolving and expanding realm of climate information can be confusing to use and easy to apply in ways the information producers never intended, and often in ways those producers might say are not viable. Additionally, advice on how various products should be used is not usually straightforward - it may require an extended dialogue between scientists and end users, which is not always feasible with current resources. While rarely is there a one-size fits all approach, there are usually preferable paths forward. To help the water resource planning and management community navigate the ever-changing climate science landscape, we present a set of guidelines for better practices when using climate information. These are divided into two categories: (1) process-based recommendations for developing an effective approach for using climate change scenarios, and (2) product-based cautions for using climate change information. This collection of dos and don'ts provides context on why certain strategies are preferable, including real-world examples. This work is intended to provide a foundation that can be built on through dialogue within and between the climate science and application communities to increase the usefulness of climate information.

  4. Geochemical and isotopic constraints on the tectonic setting of Serra dos Carajas belt, eastern Para, Brazil

    NASA Technical Reports Server (NTRS)

    Olszewski, W. J., Jr.; Gibbs, A. K.; Wirth, K. R.

    1986-01-01

    The lower part of the Serra dos Carajas belt is the metavolcanic and metasedimentary Grao para Group (GPG). The GPG is thought to unconformably overlie the older (but undated) Xingu Complex, composed of medium and high-grade gneisses and amphibolite and greenstone belts. The geochemical data indicate that the GPG has many features in common with ancient and modern volcanic suites erupted through continental crust. The mafic rocks clearly differ from those of most Archean greenstone belts, and modern MORB, IAB, and hot-spot basalts. The geological, geochemical, and isotopic data are all consistent with deposition on continental crust, presumably in a marine basin formed by crustal extension. The isotopic data also suggest the existence of depleted mantle as a source for the parent magmas of the GPG. The overall results suggest a tectonic environment, igneous sources, and petrogenesis similar to many modern continental extensional basins, in contrast to most Archean greenstone belts. The Hammersley basin in Australia and the circum-Superior belts in Canada may be suitable Archean and Proterozoic analogues, respectively.

  5. ANALYSIS OF THE PICO DOS DIAS SURVEY HERBIG Ae/Be CANDIDATES

    SciTech Connect

    Sartori, Marilia J.; Rodrigues, Claudia V.; Batalha, Celso

    2010-01-15

    A large sample of Herbig Ae/Be (HAeBe) candidates, distributed in different Galactic regions south to declination +30 deg., were identified by the Pico dos Dias Survey (a search for young stellar objects based on IRAS colors). Most of the candidates are nearby or associated with star-forming clouds, but several others are considered isolated objects. Aiming to verify the young nature of 93 HAeBe candidates, we searched for additional information that could be useful to confirm if they are pre-main-sequence (PMS) stars or evolved objects, which coincidentally show similar IRAS colors. By adopting a spectral index that is related to the amount of infrared excess and the shape of the spectral energy distribution, we have classified the sample according to three groups, which are analyzed on the basis of (1) circumstellar luminosity; (2) spatial distribution; (3) optical polarization; (4) near-infrared colors; (5) stellar parameters (mass, age, effective temperature); and (5) intensity of emission lines. Our analysis indicates that only 76% of the studied sample, mainly the group with intermediate to low levels of circumstellar emission, can be more confidently considered PMS stars. The nature of the remaining stars, which are in the other group that contains the highest levels of infrared excess, remains to be confirmed. They share the same characteristics of evolved objects, requiring complementary studies in order to correctly classify them. At least seven objects show characteristics typical of post-asymptotic giant branch or proto-planetary nebulae.

  6. Test chip assembler and test program generator

    NASA Technical Reports Server (NTRS)

    Pina, C. A.

    1985-01-01

    One of the major problems in working at the geometry level for the generation of either test structure or functional circuit designs is the amount of labor involved in the design phase. To reduce the amount of labor involved in both the design and test of the structures used, JPL has developed a design and test program consisting of a Test Chip Assembler (TCA) and a Test Program Generator (TPG), which creates the geometrical description of the structures and generates the necessary test information using a high-level language. This system reduces the design time for a test chip by a factor of 30. To analyze the data obtained from wafer probing, a statistical package called STMJPL was developed. Some of the capabilities of the JPL software (STMJPL) are described.

  7. Balloon launched decelerator test program: Post-test test report

    NASA Technical Reports Server (NTRS)

    Dickinson, D.; Schlemmer, J.; Hicks, F.; Michel, F.; Moog, R. D.

    1972-01-01

    Balloon Launched Decelerator Test (BLDT) flights were conducted during the summer of 1972 over the White Sands Missile Range. The purpose of these tests was to qualify the Viking disk-gap band parachute system behind a full-scale simulator of the Viking Entry Vehicle over the maximum range of entry conditions anticipated in the Viking '75 soft landing on Mars. Test concerns centered on the ability of a minimum weight parachute system to operate without structural damage in the turbulent wake of the blunt-body entry vehicle (140 deg, 11.5 diameter cone). This is the first known instance of parachute operation at supersonic speeds in the wake of such a large blunt body. The flight tests utilized the largest successful balloon-payload weight combination known to get to high altitude (120kft) where rocket engines were employed to boost the test vehicle to supersonic speeds and dynamic pressures simulating the range of conditions on Mars.

  8. Satellite battery testing status

    NASA Technical Reports Server (NTRS)

    Haag, R.; Hall, S.

    1986-01-01

    Because of the large numbers of satellite cells currently being tested and anticipated at the Naval Weapons Support Center (NAVWPNSUPPCEN) Crane, Indiana, satellite cell testing is being integrated into the Battery Test Automation Project (BTAP). The BTAP, designed to meet the growing needs for battery testing at the NAVWPNSUPPCEN Crane, will consist of several Automated Test Stations (ATSs) which monitor batteries under test. Each ATS will interface with an Automation Network Controller (ANC) which will collect test data for reduction.

  9. The Stimulus test stand

    SciTech Connect

    Christofek, L.; Rapidis, P.; Reinhard, A.; /Fermilab

    2005-06-01

    The Stimulus Test Stand was originally constructed and assembled for testing the SVX2 ASIC readout and then upgraded for SVX3 ASIC prototyping and testing. We have modified this system for SVX4 ASIC [1] prototype testing. We described the individual components below. Additional details for other hardware for SVX4 testing can be found in reference [2]. We provide a description of the Stimulus Test Stand used for prototype testing of the SVX4 chip.

  10. 48 CFR 653.219-70 - DOS form DS-1910, Small Business Agency Review-Actions Above the Simplified Acquisition Threshold.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false DOS form DS-1910, Small... 653.219-70 DOS form DS-1910, Small Business Agency Review—Actions Above the Simplified Acquisition Threshold. As prescribed in 619.501(c), DS-1910 is prescribed for use in documenting set-aside decisions. ...

  11. Cross-Reactive Immunity to Mycobacterium tuberculosis DosR Regulon-Encoded Antigens in Individuals Infected with Environmental, Nontuberculous Mycobacteria▿ †

    PubMed Central

    Lin, May Young; Reddy, T. B. K.; Arend, Sandra M.; Friggen, Annemieke H.; Franken, Kees L. M. C.; van Meijgaarden, Krista E.; Verduyn, Marleen J. C.; Schoolnik, Gary K.; Klein, Michel R.; Ottenhoff, Tom H. M.

    2009-01-01

    Mycobacterium tuberculosis DosR regulon-encoded antigens are highly immunogenic in M. tuberculosis-infected humans and are associated with latent tuberculosis infection. We have investigated the hypothesis that infection with or exposure to nontuberculous mycobacteria (NTM) can induce cross-reactive immunity to M. tuberculosis DosR regulon-encoded antigens since responsiveness has been observed in non-M. tuberculosis-exposed but purified protein derivative-responsive individuals. M. tuberculosis DosR regulon-encoded antigen-specific T-cell responses were studied in peripheral blood mononuclear cells (PBMCs) of NTM-infected/exposed individuals. BLASTP was used to determine the presence of M. tuberculosis DosR regulon-encoded protein orthologs among environmental mycobacteria and nonmycobacteria. Significant gamma interferon production was observed in PBMCs from NTM-infected/exposed individuals in response to M. tuberculosis DosR regulon-encoded antigens. DosR regulon-encoded protein orthologs were prominently present in tuberculous and environmental mycobacteria and surprisingly also in nonmycobacteria. The ubiquitous presence of the highly conserved DosR master regulator protein Rv3133c suggests that this is a general adaptive bacterial response regulator. We report a first series of M. tuberculosis antigens to which cross-reactive immunity is induced by NTM infection/exposure. The high conservation of M. tuberculosis DosR regulon-encoded antigens most likely enables them to induce cross-reactive T-cell responses. PMID:19737909

  12. Cumulative achievement testing: progress testing in reverse.

    PubMed

    Swanson, D B; Holtzman, K Z; Butler, A

    2010-01-01

    This collaborative project between the National Board of Medical Examiners (NBME) and Case Western Reserve University (CWRU) School of Medicine explored the design and use of cumulative achievement tests in basic science education. In cumulative achievement testing, integrative end-of-unit tests are deliberately constructed to systematically retest topics covered in previous units as well as material from the just-completed unit. CWRU faculty developed and administered a series of six web-based cumulative achievement tests using retired United States Medical Licensing Examination (USMLE) step 1 test material and tools provided by NBME's Customized Assessment Services, and trends in student performance were examined as the new CWRU basic science curriculum unfolded. This article provides the background information about test design and administration, as well as samples of score reporting information for students and faculty. While firm conclusions about the effectiveness of cumulative achievement testing are not warranted after a pilot test at a single school, preliminary results suggest that cumulative achievement testing may be an effective complement to progress testing, with the former used to encourage retention of already-covered material and the latter used to assess growth toward the knowledge and skills expected of a graduating student.

  13. Transient Pressure Test Article Test Program

    NASA Technical Reports Server (NTRS)

    Vibbart, Charles M.

    1989-01-01

    The Transient Pressure Test Article (TPTA) test program is being conducted at a new test facility located in the East Test Area at the National Aeronautics and Space Administration's (NASA's) Marshall Space Flight Center (MSFC) in Huntsville, Alabama. This facility, along with the special test equipment (STE) required for facility support, was constructed specifically to test and verify the sealing capability of the Redesigned Solid Rocket Motor (RSRM) field, igniter, and nozzle joints. The test article consists of full scale RSRM hardware loaded with inert propellant and assembled in a short stack configuration. The TPTA is pressurized by igniting a propellant cartridge capable of inducing a pressure rise rate which stimulates the ignition transient that occurs during launch. Dynamic loads are applied during the pressure cycle to simulate external tank attach (ETA) strut loads present on the ETA ring. Sealing ability of the redesigned joints is evaluated under joint movement conditions produced by these combined loads since joint sealing ability depends on seal resilience velocity being greater than gap opening velocity. Also, maximum flight dynamic loads are applied to the test article which is either pressurized to 600 psia using gaseous nitrogen (GN2) or applied to the test article as the pressure decays inside the test article on the down cycle after the ignition transient cycle. This new test facility is examined with respect to its capabilities. In addition, both the topic of test effectiveness versus space vehicle flight performance and new aerospace test techniques, as well as a comparison between the old SRM design and the RSRM are presented.

  14. Pyrovalve Blowby Tests

    NASA Technical Reports Server (NTRS)

    Saulsberry, Regor; Keddy, Christopher P.; Julien, Howard L.

    2003-01-01

    The NASA White Sands Test Facility (WSTF) was requested to perform pyrovalve blowby tests in support of the Mars Observer Propulsion and Corrective Actions Test Program. Fifty-three tests were conducted in an attempt to characterize the blowby of commercial pyrovalves. Those pyrovalves used on NASA spacecraft are well represented, and the test data reported provide a basis for evaluating the performance of similar valves in other propulsion systems. The three test series conducted are subsequently described. All testing was done in the same test facility, with periodic changes that enhanced the test methodology.

  15. Criteria for structural test

    NASA Technical Reports Server (NTRS)

    1973-01-01

    The results of a study to define criteria and techniques of design, analysis and test which permit the use of a single major structural test article for performing dynamic, fatigue, and static testing are presented. The criteria developed is applicable to both space vehicles and aircraft structures operating in the subsonic or supersonic regime. The feasibility of such an approach was demonstrated by defining test interactions, compatibilities and incompatibilities between the three different types of tests. The results of the study indicate that the single test article concept is feasible with a testing sequence of dynamic test followed by a fatigue and static test.

  16. Reviews of Test Materials.

    ERIC Educational Resources Information Center

    Mullen, Jo-Ann

    1981-01-01

    Reviews four standardized tests geared to helping development educators in placing students in courses and assessing their learning levels: the Davis Reading Test; the Descriptive Tests of Language Skills; the Descriptive Tests of Mathematics Skills; and the Nelson-Denny Reading Test. (CAM)

  17. Test vs. simulation

    NASA Technical Reports Server (NTRS)

    Wood, Charles C.

    1991-01-01

    The following topics are presented in tabular form: (1) simulation capability assessments (no propulsion system test); (2) advanced vehicle simulation capability assessment; (3) systems tests identified events; (4) main propulsion test article (MPTA) testing evaluation; (5) Saturn 5, 1B, and 1 testing evaluation. Special vehicle simulation issues that are propulsion related are briefly addressed.

  18. Test Form Accuracy.

    ERIC Educational Resources Information Center

    Wise, Lauress

    As high-stakes use of tests increases, it becomes vital that test developers and test users communicate clearly about the accuracy and limitations of the scores generated by a test after it is assembled and used. A procedure is described for portraying the accuracy of test scores. It can be used in setting accuracy targets during form construction…

  19. Teaching to the Test.

    ERIC Educational Resources Information Center

    Powell, Sara Davis

    1999-01-01

    Academically sound methods for preparing students for standardized tests include establishing tests' importance, forming preparation teams, gathering information, aligning curricular and test objectives, teaching test-wiseness skills, informing stakeholders, involving students in preparation plans, infusing curriculum with test content, and…

  20. Longitudinal Multistage Testing

    ERIC Educational Resources Information Center

    Pohl, Steffi

    2013-01-01

    This article introduces longitudinal multistage testing (lMST), a special form of multistage testing (MST), as a method for adaptive testing in longitudinal large-scale studies. In lMST designs, test forms of different difficulty levels are used, whereas the values on a pretest determine the routing to these test forms. Since lMST allows for…

  1. CO2 blood test

    MedlinePlus

    Bicarbonate test; HCO3-; Carbon dioxide test; TCO2; Total CO2; CO2 test - serum ... Many medicines can interfere with blood test results. Your health care provider will tell you if you need to stop taking any medicines before you have this test. DO ...

  2. Growth hormone stimulation test

    MedlinePlus

    Arginine test; Arginine-GHRH test ... of re-inserting the needle each time. The test takes between 2 to 5 hours. The procedure ... eat for 10 to 12 hours before the test. Eating food can change the test results. Some ...

  3. Vendor System Vulnerability Testing Test Plan

    SciTech Connect

    James R. Davidson

    2005-01-01

    The Idaho National Laboratory (INL) prepared this generic test plan to provide clients (vendors, end users, program sponsors, etc.) with a sense of the scope and depth of vulnerability testing performed at the INL’s Supervisory Control and Data Acquisition (SCADA) Test Bed and to serve as an example of such a plan. Although this test plan specifically addresses vulnerability testing of systems applied to the energy sector (electric/power transmission and distribution and oil and gas systems), it is generic enough to be applied to control systems used in other critical infrastructures such as the transportation sector, water/waste water sector, or hazardous chemical production facilities. The SCADA Test Bed is established at the INL as a testing environment to evaluate the security vulnerabilities of SCADA systems, energy management systems (EMS), and distributed control systems. It now supports multiple programs sponsored by the U.S. Department of Energy, the U.S. Department of Homeland Security, other government agencies, and private sector clients. This particular test plan applies to testing conducted on a SCADA/EMS provided by a vendor. Before performing detailed vulnerability testing of a SCADA/EMS, an as delivered baseline examination of the system is conducted, to establish a starting point for all-subsequent testing. The series of baseline tests document factory delivered defaults, system configuration, and potential configuration changes to aid in the development of a security plan for in depth vulnerability testing. The baseline test document is provided to the System Provider,a who evaluates the baseline report and provides recommendations to the system configuration to enhance the security profile of the baseline system. Vulnerability testing is then conducted at the SCADA Test Bed, which provides an in-depth security analysis of the Vendor’s system.b a. The term System Provider replaces the name of the company/organization providing the system

  4. ZEST flight test experiments, Kauai Test Facility, Hawaii. Test report

    SciTech Connect

    Cenkci, M.J.

    1991-07-01

    The Strategic Defense Initiative Organization (SDIO) is proposing to execute two ZEST flight experiments to obtain information related to the following objectives: validation of payload modeling; characterization of a high energy release cloud; and documentation of scientific phenomena that may occur as a result of releasing a high energy cloud. The proposed action is to design, develop, launch, and detonate two payloads carrying high energy explosives. Activities required to support this proposal include: (1) execution of component assembly tests at Space Data Division (SDD) in Chandler, Arizona and Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico, and (2) execution of pre-flight flight test activities at Kauai Test Facility.

  5. Objective Testing: Urine and Other Drug Tests.

    PubMed

    Hadland, Scott E; Levy, Sharon

    2016-07-01

    Drug testing, when carefully collected and thoughtfully interpreted, offers a critical adjunct to clinical care and substance use treatment. However, because test results can be misleading if not interpreted in the correct clinical context, clinicians should always conduct a careful interview with adolescent patients to understand what testing is likely to show and then use testing to validate or refute their expectations. Because of the ease with which samples can be tampered, providers should also carefully reflect on their own collection protocols and sample validation procedures to ensure optimal accuracy." Copyright © 2016 Elsevier Inc. All rights reserved.

  6. Color vision test

    MedlinePlus

    ... present from birth) color vision problems: Achromatopsia -- complete color blindness , seeing only shades of gray Deuteranopia -- difficulty telling ... Vision test - color; Ishihara color vision test Images Color blindness tests References Bowling B. Hereditary fundus dystrophies. In: ...

  7. Cholesterol testing and results

    MedlinePlus

    ... VLDL test results; HDL test results; Coronary risk profile results; Hyperlipidemia-results; Lipid disorder test results ... in your blood. You may also have a lipid (or coronary risk) profile, which includes: Total cholesterol Low density lipoprotein (LDL ...

  8. Test Preparation: Your Role

    MedlinePlus

    ... common types of preparation required for testing is fasting (to go without all or certain foods) for ... tests that require advance preparation include: Glucose tolerance, fasting, and two-hour post-prandial blood glucose tests : ...

  9. Fecal Fat: The Test

    MedlinePlus

    ... Fat, Fecal Qualitative or Quantitative Related tests: Xylose Absorption Test , Celiac Disease Antibody Tests , Comprehensive Metabolic Panel , ... is a better evaluation of fat digestion and absorption. There are two reasons for this: For the ...

  10. PBG urine test

    MedlinePlus

    ... tested in the lab. This is called a random urine sample. If needed, your health care provider ... For a random urine sample, a negative test result is considered normal. If the test is done on a 24-hour ...

  11. Hepatitis A Test

    MedlinePlus

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Hepatitis A Testing Share this page: Was this page ... HAV-Ab total; Anti-HAV Formal name: Viral Hepatitis A Antibody Related tests: Hepatitis B Testing ; Hepatitis ...

  12. GI Radiographic Tests

    MedlinePlus

    ... Topic / Radiographic Tests in GI Radiographic Tests in GI Basics Commonly Performed Radiographic Tests in Gastroenterology Gastroenterologists ... January 2009. Updated December 2012. Return to Top GI Health Centers Colorectal Cancer Hepatitis C Inflammatory Bowel ...

  13. Kidney function tests

    MedlinePlus

    Kidney function tests are common lab tests used to evaluate how well the kidneys are working. Such tests include: ... Oh MS, Briefel G. Evaluation of renal function, water, electrolytes ... and Management by Laboratory Methods . 23rd ed. Philadelphia, ...

  14. Termite testing continues

    Treesearch

    Terence L. Wagner; Joe Mulrooney; Chris Petereson

    2002-01-01

    The United States Department of Agriculture Forest Service's termiticide testing program provides unbiased efficacy data for product registration using standardized tests, sites and evaluation procedures. Virtually all termiticides undergo Forest Service tests prior to registration.

  15. Vitamin A Test

    MedlinePlus

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Vitamin A Share this page: Was this page helpful? ... Related tests: Complete Blood Count , Comprehensive Metabolic Panel , Vitamin B12 and Folate , Vitamin D Tests , Iron Tests , ...

  16. Prenatal Genetic Diagnostic Tests

    MedlinePlus

    ... disorders and mutations. Only embryos that do not test positive for the disorders are transferred. How are the cells analyzed in prenatal diagnostic testing? A number of technologies are used in prenatal diagnostic testing. Your obstetrician ...

  17. Home Use Tests

    MedlinePlus

    ... C Human Immunodeficiency Virus (HIV) Menopause Fecal Occult Blood Ovulation (Saliva Test) Ovulation (Urine Test) Pregnancy Prothrombin Vaginal pH Resources for You Home Use Tests: Glossary Page ...

  18. Testing and the Law.

    ERIC Educational Resources Information Center

    Bersoff, Donald N.

    1981-01-01

    Examines the legal issues concerning (1) cultural bias in educational tests; (2) the validity of employment tests; and (3) the disclosure of test materials. Discusses the legal interpretations of psychometric concepts that have arisen from recent litigation. (Author/GC)

  19. What Is Stress Testing?

    MedlinePlus

    ... problem that prevents you from exercising during a stress test. If so, your doctor may give you medicine ... a pharmacological (FAR-ma-ko-LOJ-ih-kal) stress test. Overview Doctors usually use stress testing to help ...

  20. Home blood sugar testing

    MedlinePlus

    Diabetes - home glucose testing; Diabetes - home blood sugar testing ... Usual times to test your blood sugar are before meals and at bedtime. Your provider may ask you to check your blood sugar 2 hours after a ...

  1. Glucagon blood test

    MedlinePlus

    ... type I - glucagon test; Hypoglycemia - glucagon test; Low blood sugar - glucagon test ... A blood sample is needed . ... When the needle is inserted to draw blood, some people feel ... Afterward, there may be some throbbing or a slight bruise. This ...

  2. Semen Analysis Test

    MedlinePlus

    ... Sperm Count; Seminal Fluid Analysis Formal name: Semen Analysis Related tests: Antisperm Antibody Test; FSH ; LH ; Testosterone ; Prolactin ; Urinalysis All content on Lab Tests Online has been reviewed and ...

  3. Genetic Testing for ALS

    MedlinePlus

    ... Some medical centers may require a neurological exam, psychological assessment and counseling before predictive testing. If a person in the family with ALS has a negative genetic test result (no identified genetic mutation), testing family members ...

  4. Bilirubin Blood Test

    MedlinePlus

    ... precaution. Why do I need a bilirubin blood test? Your health care provider may order a bilirubin blood test: If ... hemolytic anemia What happens during a bilirubin blood test? A health care professional will take a blood sample from a ...

  5. Anion Gap Blood Test

    MedlinePlus

    ... Why do I need an anion gap blood test? Your health care provider may have ordered an anion gap blood ... which is a blood test. During a blood test, a health care professional uses a small needle to take a ...

  6. Hepatitis B Test

    MedlinePlus

    ... IgM; anti-HBe; Hepatitis B e Antibody; HBV DNA Formal name: Hepatitis B Virus Testing Related tests: ... produced by the virus, and others detect viral DNA . The main uses for HBV tests include: To ...

  7. Urine concentration test

    MedlinePlus

    ... Test is Performed For this test, the specific gravity of urine , urine electrolytes , and/or urine osmolality ... it is tested right away. For urine specific gravity, the health care provider uses a dipstick made ...

  8. Dengue Fever Testing

    MedlinePlus

    ... infection. Two primary types of testing are available: Molecular testing ( polymerase chain reaction, PCR )—this type of ... the Centers for Disease Control and Prevention (CDC). Molecular tests of blood are not likely to detect ...

  9. Dexamethasone suppression test

    MedlinePlus

    DST; ACTH suppression test; Cortisol suppression test ... During this test, you will receive dexamethasone. This is a strong man-made (synthetic) glucocorticoid medication. Afterward, your blood is drawn ...

  10. ALP isoenzyme test

    MedlinePlus

    Alkaline phosphatase isoenzyme test ... anything for 10 to 12 hours before the test, unless your health care provider tells you to do so. Many medicines can interfere with blood test results. Your health care provider will tell you ...

  11. Screening Tests for Women

    MedlinePlus

    ... All people should know their HIV status. This Web page from womenshealth.gov talks about how to get tested for HIV, types of HIV tests, and confidential versus anonymous testing. Gonorrhea Fact Sheet - ...

  12. Anthrax blood test

    MedlinePlus

    Anthrax serology test; Antibody test for anthrax; Serologic test for B anthracis ... A normal result means no antibodies to the anthrax bacteria were seen in your blood sample. However, during the early stages of infection, your body may only ...

  13. Flexible Transcription Testing

    ERIC Educational Resources Information Center

    Carr-Smith, Norma

    1976-01-01

    Flexible structure in a San Francisco State University shorthand course is described as a way to provide motivation for students. Topics discussed are transcription testing plan, method of evaluation, practice tests, increasing difficulty of tests, and classroom results. (TA)

  14. PPD skin test

    MedlinePlus

    ... is a method used to diagnose silent (latent) tuberculosis (TB) infection. PPD stands for purified protein derivative. ... skin test; Tuberculin skin test; Mantoux test Images Tuberculosis in the kidney Tuberculosis in the lung Positive ...

  15. Diagnostic Tests and Procedures

    MedlinePlus

    ... Blood Tests Cardiac Catheterization Cardiac Magnetic Resonance Imaging (MRI and MRA) Computed Tomography (CT) Scan Echocardiography Electrocardiogram Electrophysiology Studies Exercise Stress Test Holter Monitoring Intravascular Ultrasound Nuclear Stress Test ...

  16. Campylobacter serology test

    MedlinePlus

    ... this page: //medlineplus.gov/ency/article/003530.htm Campylobacter serology test To use the sharing features on this page, please enable JavaScript. Campylobacter serology test is a blood test to look ...

  17. Home vision tests

    MedlinePlus

    ... testing. AMSLER GRID TEST This test helps detect macular degeneration . This is a disease that causes blurred vision, ... exam. People who are at risk of developing macular degeneration may be told by their ophthalmologist to perform ...

  18. Liver function tests

    MedlinePlus

    Liver function tests are common tests that are used to see how well the liver is working. Tests include: ... M, Bowne WB, Bluth MH. Evaluation of liver function. In: McPherson RA, Pincus MR, eds. Henry's Clinical ...

  19. Titanium Honeycomb Panel Testing

    NASA Technical Reports Server (NTRS)

    Richards, W. Lance; Thompson, Randolph C.

    1996-01-01

    Thermal-mechanical tests were performed on a titanium honeycomb sandwich panel to experimentally validate the hypersonic wing panel concept and compare test data with analysis. Details of the test article, test fixture development, instrumentation, and test results are presented. After extensive testing to 900 deg. F, non-destructive evaluation of the panel has not detected any significant structural degradation caused by the applied thermal-mechanical loads.

  20. Busy test week

    NASA Image and Video Library

    2012-11-06

    NASA engineers test a chemical steam generator (CSG) unit on the E-2 Test Stand at John C. Stennis Space Center on Nov. 6. The test was one of 27 conducted in Stennis' E Test Complex the week of Nov. 5. Twenty-seven CSG units will be used on the new A-3 Test Stand at Stennis to produce a vacuum that allows testing of engines at simulated altitudes up to 100,000 feet.

  1. Test Analysis Guidelines

    NASA Technical Reports Server (NTRS)

    Jeng, Frank F.

    2007-01-01

    Development of analysis guidelines for Exploration Life Support (ELS) technology tests was completed. The guidelines were developed based on analysis experiences gained from supporting Environmental Control and Life Support System (ECLSS) technology development in air revitalization systems and water recovery systems. Analyses are vital during all three phases of the ELS technology test: pre-test, during test and post test. Pre-test analyses of a test system help define hardware components, predict system and component performances, required test duration, sampling frequencies of operation parameters, etc. Analyses conducted during tests could verify the consistency of all the measurements and the performance of the test system. Post test analyses are an essential part of the test task. Results of post test analyses are an important factor in judging whether the technology development is a successful one. In addition, development of a rigorous model for a test system is an important objective of any new technology development. Test data analyses, especially post test data analyses, serve to verify the model. Test analyses have supported development of many ECLSS technologies. Some test analysis tasks in ECLSS technology development are listed in the Appendix. To have effective analysis support for ECLSS technology tests, analysis guidelines would be a useful tool. These test guidelines were developed based on experiences gained through previous analysis support of various ECLSS technology tests. A comment on analysis from an experienced NASA ECLSS manager (1) follows: "Bad analysis was one that bent the test to prove that the analysis was right to begin with. Good analysis was one that directed where the testing should go and also bridged the gap between the reality of the test facility and what was expected on orbit."

  2. Busy test week

    NASA Image and Video Library

    2012-11-08

    A test of NASA's liquid oxygen, liquid methane Project Morpheus engine is conducted Nov. 8 on the E-3 Test Stand at John C. Stennis Space Center. The test was one of 27 conducted in Stennis' E Test Complex the week of Nov. 5. Twenty-seven tests were conducted in a three-day period during the week, on three different rocket engines/components and on three E Complex test stands.

  3. Strapdown gyro test program

    NASA Technical Reports Server (NTRS)

    Irvine, R. B.; Vanalstine, R.

    1977-01-01

    The power spectral noise characteristic performance of the Teledyne two-degree-of-freedom dry tuned gimbal gyroscope was determined. Tests were conducted using a current configuration SDG-5 gyro in conjunction with test equipment with minor modification. Long term bias stability tests were conducted as well as some first difference performance tests. The gyro, test equipment, and the tests performed are described. Results are presented.

  4. Columbia University flow instability experimental program: Volume 12. Single annulus transient test program data tables: Part 1

    SciTech Connect

    Coutts, D.A.

    1993-09-01

    The single annulus test program was designed to investigate the onset of flow instability in an annular geometry similar to the fuel assemblies used in the Savannah River Site production reactors. Data files were transmitted from Columbia University to Savannah River Site in a DOS compatible format. This report provides a hardcopy version of the electronic media data files.

  5. Lessons Learned from Sleep Education in Schools: A Review of Dos and Don'ts

    PubMed Central

    Blunden, Sarah; Rigney, Gabrielle

    2015-01-01

    Study Objectives: Sleep duration and quality are associated with negative neuropsychological and psychosocial outcomes in children and adolescents. However, community awareness of this is low and sleep education programs in schools are attempting to address this issue. Several studies now exist assessing the efficacy of these sleep education programs for improving sleep knowledge, sleep hygiene and sleep patterns. This paper presents these sleep education programs, most particularly, it presents the strengths and weaknesses of the current available studies in the hope that this can identify areas where future sleep education programs can improve. Methods: A systematic search of all school-based sleep education studies in adolescents was undertaken. Studies were scrutinized for author, teacher and participant comment regarding strengths and limitations of each study, which were then extracted and summarized. Results: Two specific types of sleep education programs emerged from the review, those that sought to change sleep behavior and those that sought simply to disseminate information. Issues that dictated the strength or weakness of a particular study including who delivers the program, the theoretical basis, the tools utilized to measure sleep patterns, the content, and their capacity to engage students were assessed. Sleep education was considered important by teachers, students and parents alike. Conclusions: Future sleep education programs need to take into account lessons learned from previous sleep education efforts in order to maximize the potential for sleep education programs to improve the sleep health of our young people. Commentary: A commentary on this article appears in this issue on page 595. Citation: Blunden S, Rigney G. Lessons learned from sleep education in schools: a review of dos and don'ts. J Clin Sleep Med 2015;11(6):671–680. PMID:25766709

  6. Las dos cosas: an analysis of attitudes of latina women on non-exclusive breastfeeding.

    PubMed

    Bartick, Melissa; Reyes, Catherine

    2012-02-01

    Non-exclusive breastfeeding among Latina women is commonly seen in the newborn period. The reasons behind las dos cosas ("both things") are not well understood but have included the beliefs that formula has vitamins and that adding formula will result in a chubbier baby, which is desirable. Many previous studies involved Mexican and Puerto Rican women living in the mainland United States. We performed detailed semistructured interviews with 17 Latina mothers in late pregnancy or the newborn period at a community hospital and an affiliated clinic in Massachusetts, serving a large Dominican population. Women were asked about their beliefs about breastfeeding, colostrum, and infant formula. Transcripts were analyzed using Nvivo 9 software (QSR International Pty. Ltd., Melbourne, Australia) to identify the frequencies of common trends. The most common reasons for introducing formula were treatment for insufficient milk, to keep the baby fuller longer, and planning for return to work. None of the women understood the potential risks of introducing formula on the establishment of breastfeeding, particularly on milk supply. Many thought that even limited amounts of breastfeeding were sufficient to produce a healthier child, failing to understand a negative dose-response effect of formula on health and milk production. While every woman saw breastfeeding as healthier, only one saw formula as unhealthy, an important distinction. None of the women expressed familiarity with medical recommendations around breastfeeding duration or exclusivity, with many believing that breastmilk alone would be insufficient to satisfy the hunger or nutritional needs of a growing child after as little as 3 months. Women consistently demonstrated a willingness to learn from health professionals. In counseling Latina women, it may be important to discuss the risks of formula to infant health, breastfeeding, and milk supply and to include the medical recommendations for breastfeeding exclusivity

  7. Testing for Software Safety

    NASA Technical Reports Server (NTRS)

    Chen, Ken; Lee, Yann-Hang; Wong, W. Eric; Xu, Dianxiang

    2007-01-01

    This research focuses on testing whether or not the hazardous conditions identified by design-level fault tree analysis will occur in the target implementation. Part 1: Integrate fault tree models into functional specifications so as to identify testable interactions between intended behaviors and hazardous conditions. Part 2: Develop a test generator that produces not only functional tests but also safety tests for a target implementation in a cost-effective way. Part 3: Develop a testing environment for executing generated functional and safety tests and evaluating test results against expected behaviors or hazardous conditions. It includes a test harness as well as an environment simulation of external events and conditions.

  8. CEQATR Thermal Test Overview

    NASA Technical Reports Server (NTRS)

    Balusek, Alan R.

    2009-01-01

    A thermal test overview of the Constellation Environmental Qualification and Acceptance Test Requirement (CEQATR) is presented. The contents include: 1) CEQATR Thermal Test Overview; 2) CxP Environments; 3) CEQATR Table 1.2-1; 4) Levels of Assembly; 5) Definitions for Levels of Assembly; 6) Hardware Applicability; 7) CEQATR Thermal-Related Definitions; 8) Requirements for unit-level thermal testing; 9) Requirements for major assembly level thermal testing; 10) General thermal testing requirements; 11) General thermal cycle, thermal vacuum profiles; 12) Test tolerances; 13) Vacuum vs Ambient; 14) Thermal Gradient; 15) Sequence of Testing; 16) Alternative Strategies; 17) Protoflight; 18) Halt/Hass; 19) Humidity; and 20) Tailoring.

  9. Who fails lantern tests?

    PubMed

    Cole, B L; Vingrys, A J

    1983-05-01

    A battery of clinical colour vision tests was given to a group of 100 observers with abnormal colour vision who were also tested on the Farnsworth lantern and the Holmes-Wright lanterns types A and B. It was found that clinical colour vision tests are imperfect predictors of lantern test performance. However, observers classified as having a 'severe' colour vision defect were found to fail the lantern tests but only one half to two-thirds of those who fail the lantern tests can be identified in this way. It is not possible to identify with certainty any of the people likely to pass the lantern tests: about one-third to two-thirds of observers classified as being mildly affected fail the lantern tests. The Farnsworth D-15 and City University tests were found to be the best predictors of lantern test performance but other tests such as the Nagel anomaloscope, the H-16, L'Anthony's desaturated test can also be used. The lack of a strong correlation between clinical tests and the recognition of the small coloured stimuli presented by the lantern tests suggests that clinical tests do not test the same aspect of colour vision that is important to the recognition of signal lights. For this reason lantern tests should be retained for occupational testing of colour vision.

  10. PACS component testing: beta and acceptance testing

    NASA Astrophysics Data System (ADS)

    Honeyman-Buck, Janice C.; Frost, Meryll M.; Staab, Edward V.

    1997-05-01

    The functionality and performance expectations of all PACS components must be specified at the time of purchase and tested completely upon delivery to assure customer satisfaction and successful adoption of the new technology. This process may be more elaborate if the customer agrees to serve as a Beta test site for a new component or a new revision of an existing component.A carefully designed test plan will save time at installation, will allow the customer and vendor to agree on expectations, and will assure that the installation will proceed as planned. This paper describes the test procedure used at the University of Florida to accept each PACS component, either a commercial product, or one developed in house. A set of documents contain descriptions of the pre-installation environment, sets of studies to be used in the test, installation checklist, functional usage reports, subjective evaluations, and problem reporting forms. Training and user documentation is also reviewed and 'help lists' are created to help users perform the most common functions. Although details in the documents are changed to match the type of component being tested, the general form of the test remains the same. A formal procedure for testing the functionality and performance of new equipment can save time for both the vendor and the customer and, if specified at the time of purchase, can serve to document the expectations of the customer. Following these procedures will assure a successful installation and improve customer satisfaction.

  11. Test plan for Simulated Saltcake Retrieval Test

    SciTech Connect

    HERTING, D.L.

    2000-07-19

    This document describes the plan for a bench-scale laboratory test to evaluate physical and chemical parameters associated with dissolution of a simulated saltcake waste. Parameters to be measured during the test include water addition rate, liquid drainage rate, visual observations of flow patterns, physical appearance and volume of dissolving saltcake, chemical composition of drained liquid, and polarized light microscopy analysis of solids.

  12. Computerized Testing: The Hidden Figures Test.

    ERIC Educational Resources Information Center

    Jacobs, Ronald L.; And Others

    1985-01-01

    This study adapted the Hidden Figures Test for use on PLATO and determined the reliability of the computerized version compared to the paper and pencil version. Results indicate the test was successfully adapted with some modifications, and it was judged reliable although it may be measuring additional constructs. (MBR)

  13. Testing: Let's Put It to the Test.

    ERIC Educational Resources Information Center

    Miller, Phyllis, Ed.

    2000-01-01

    In this journal issue, articles examine various aspects of testing intelligence, creativity, and psychopathology. Featured articles include: (1) "Monglottosis: What's Wrong with the Idea of IQ Meritocracy and Its Racy Cousins?" (Johan W. Oller, Jr.), which shows empirically and theoretically that even nonverbal IQ tests mainly measure powers of…

  14. Computerized Testing: The Hidden Figures Test.

    ERIC Educational Resources Information Center

    Jacobs, Ronald L.; And Others

    1985-01-01

    This study adapted the Hidden Figures Test for use on PLATO and determined the reliability of the computerized version compared to the paper and pencil version. Results indicate the test was successfully adapted with some modifications, and it was judged reliable although it may be measuring additional constructs. (MBR)

  15. Dynamic Testing: Toward a Multiple Exciter Test

    DTIC Science & Technology

    2015-04-01

    en- hanced environmental testing. The combination of higher-per- formance vehicles generating more severe vibration environ - ments and the use of...critical vibration testing element. The field vibration environment may be described as the simultaneous vibration in three translational and three...high uncontrolled harmonic dis- tortions associated with the drive mechanisms. While they provided a rudimentary vibration environment , the

  16. Integrated Test and Evaluation Flight Test 3 Flight Test Plan

    NASA Technical Reports Server (NTRS)

    Marston, Michael Lawrence

    2015-01-01

    The desire and ability to fly Unmanned Aircraft Systems (UAS) in the National Airspace System (NAS) is of increasing urgency. The application of unmanned aircraft to perform national security, defense, scientific, and emergency management are driving the critical need for less restrictive access by UAS to the NAS. UAS represent a new capability that will provide a variety of services in the government (public) and commercial (civil) aviation sectors. The growth of this potential industry has not yet been realized due to the lack of a common understanding of what is required to safely operate UAS in the NAS. NASA's UAS Integration into the NAS Project is conducting research in the areas of Separation Assurance/Sense and Avoid Interoperability, Human Systems Integration (HSI), and Communication to support reducing the barriers of UAS access to the NAS. This research is broken into two research themes namely, UAS Integration and Test Infrastructure. UAS Integration focuses on airspace integration procedures and performance standards to enable UAS integration in the air transportation system, covering Sense and Avoid (SAA) performance standards, command and control performance standards, and human systems integration. The focus of Test Infrastructure is to enable development and validation of airspace integration procedures and performance standards, including the integrated test and evaluation. In support of the integrated test and evaluation efforts, the Project will develop an adaptable, scalable, and schedulable relevant test environment capable of evaluating concepts and technologies for unmanned aircraft systems to safely operate in the NAS. To accomplish this task, the Project will conduct a series of Human-in-the-Loop and Flight Test activities that integrate key concepts, technologies and/or procedures in a relevant air traffic environment. Each of the integrated events will build on the technical achievements, fidelity and complexity of the previous tests and

  17. Implementation of DoS attack and mitigation strategies in IEEE 802.11b/g WLAN

    NASA Astrophysics Data System (ADS)

    Deng, Julia; Meng, Ke; Xiao, Yang; Xu, Roger

    2010-04-01

    IEEE 802.11 wireless Local Area Network (WLAN) becomes very prevalent nowadays. Either as a simple range extender for a home wired Ethernet interface, or as a wireless deployment throughout an enterprise, WLAN provides mobility, convenience, and low cost. However, an IEEE 802.11b/g wireless network uses the frequency of unlicensed 2.4GHz, which makes the network unsafe and more vulnerable than traditional Ethernet networks. As a result, anyone who is familiar with wireless network may initiate a Denial of Service (DoS) attack to influence the common communication of the network or even make it crash. In this paper, we present our studies on the DoS attacks and mitigation strategies for IEEE 802.11b/g WLANs and describe some initial implementations using IEEE 802.11b/g wireless devices.

  18. Digface characterization test plan (remote testing)

    SciTech Connect

    Croft, K.; Hyde, R.; Allen, S.

    1993-08-01

    The objective of the Digface Characterization (DFC) Remote Testing project is to remotely deploy a sensor head (Mini-Lab) across a digface to determine if it can characterize the contents below the surface. The purpose of this project is to provide a robotics technology that allows removal of workers from hazards, increases speed of operations, and reduces life cycle costs compared to alternate methods and technologies. The Buried Waste Integrated Demonstration (BWID) is funding the demonstration, testing, and evaluation of DFC. This document describes the test plan for the DFC remote deployment demonstration for the BWID. The purposes of the test plan are to establish test parameters so that the demonstration results are deemed useful and usable and perform the demonstration in a safe manner and within all regulatory requirements.

  19. Role of test motivation in intelligence testing

    PubMed Central

    Duckworth, Angela Lee; Quinn, Patrick D.; Lynam, Donald R.; Loeber, Rolf; Stouthamer-Loeber, Magda

    2011-01-01

    Intelligence tests are widely assumed to measure maximal intellectual performance, and predictive associations between intelligence quotient (IQ) scores and later-life outcomes are typically interpreted as unbiased estimates of the effect of intellectual ability on academic, professional, and social life outcomes. The current investigation critically examines these assumptions and finds evidence against both. First, we examined whether motivation is less than maximal on intelligence tests administered in the context of low-stakes research situations. Specifically, we completed a meta-analysis of random-assignment experiments testing the effects of material incentives on intelligence-test performance on a collective 2,008 participants. Incentives increased IQ scores by an average of 0.64 SD, with larger effects for individuals with lower baseline IQ scores. Second, we tested whether individual differences in motivation during IQ testing can spuriously inflate the predictive validity of intelligence for life outcomes. Trained observers rated test motivation among 251 adolescent boys completing intelligence tests using a 15-min “thin-slice” video sample. IQ score predicted life outcomes, including academic performance in adolescence and criminal convictions, employment, and years of education in early adulthood. After adjusting for the influence of test motivation, however, the predictive validity of intelligence for life outcomes was significantly diminished, particularly for nonacademic outcomes. Collectively, our findings suggest that, under low-stakes research conditions, some individuals try harder than others, and, in this context, test motivation can act as a third-variable confound that inflates estimates of the predictive validity of intelligence for life outcomes. PMID:21518867

  20. Video movie making using remote procedure calls and 4BSD Unix sockets on Unix, UNICOS, and MS-DOS systems

    SciTech Connect

    Robertson, D.W.; Johnston, W.E.; Hall, D.E.; Rosenblum, M.

    1990-03-01

    We describe the use of the Sun Remote Procedure Call and Unix socket interprocess communication mechanisms to provide the network transport for a distributed, client-server based, image handling system. Clients run under Unix or UNICOS and servers run under Unix or MS-DOS. The use of remote procedure calls across local or wide-area networks to make video movies is addressed.

  1. Diverted organic synthesis (DOS): accessing a new, natural product inspired, neurotrophically active scaffold through an intramolecular Pauson-Khand reaction.

    PubMed

    Mehta, Goverdhan; Samineni, Ramesh; Srihari, Pabbaraja; Reddy, R Gajendra; Chakravarty, Sumana

    2012-09-14

    Drawing inspiration from the impressive neurotrophic activity exhibited by the natural product paecilomycine A, we have designed a new natural product-like scaffold employing an intramolecular Pauson-Khand reaction. Several compounds based on the new designer scaffold exhibited promising neurotrophic activity and are worthy of further biological evaluation. Our findings also highlight the importance of a DOS strategy in creating useful therapeutical leads.

  2. Testing for Language Teachers.

    ERIC Educational Resources Information Center

    Hughes, Arthur

    The book is designed to help language teachers write better tests, taking the view that test construction is an exercise in problem-solving, with every teaching situation presenting a different problem that an understanding of the underlying principles of testing can help solve. Examples are given from testing of English as a Second Language…

  3. Color identification testing device

    NASA Technical Reports Server (NTRS)

    Brawner, E. L.; Martin, R.; Pate, W.

    1970-01-01

    Testing device, which determines ability of a technician to identify color-coded electric wires, is superior to standard color blindness tests. It tests speed of wire selection, detects partial color blindness, allows rapid testing, and may be administered by a color blind person.

  4. Pre-Test Assessment

    ERIC Educational Resources Information Center

    Berry, Thomas

    2008-01-01

    Pre-tests are a non-graded assessment tool used to determine pre-existing subject knowledge. Typically pre-tests are administered prior to a course to determine knowledge baseline, but here they are used to test students prior to topical material coverage throughout the course. While counterintuitive, the pre-tests cover material the student is…

  5. Rh Factor Blood Test

    MedlinePlus

    Tests and Procedures Rh factor blood test By Mayo Clinic Staff Rhesus (Rh) factor is an inherited protein found on the surface of red ... positive. Your health care provider will recommend an Rh factor test during your first prenatal visit. This test ...

  6. TB Screening Tests

    MedlinePlus

    ... Protein Derivative; PPD; Mantoux; Latent Tuberculosis Infection Test; Interferon-gamma Release Assays; IGRA; T-Spot®.TB; QuantiFERON®-TB Gold (QFT- ... Tube (QFT-GIT) Formal name: Tuberculin Skin Test; Interferon Gamma Release Assays Related tests: AFB Testing ; Bacterial Sputum Culture ; Adenosine ...

  7. Testing Our Limits

    ERIC Educational Resources Information Center

    Tempel, Melissa Bollow

    2012-01-01

    Computerized testing, including the widely used MAP test, has infiltrated the public schools in Milwaukee and across the nation, bringing with it a frightening future for public education. High-stakes standardized tests can be scored almost immediately via the internet, and testing companies can now easily link districts to their online data…

  8. Flight Test Techniques

    DTIC Science & Technology

    2009-07-01

    Fort Rucker, AL 36362-5276 8. PERFORMING ORGANIZATION REPORT NUMBER TOP 7-4-020 9. SPONSORING/ MONITORING AGENCY NAME(S) AND ADDRESS(ES...2 3. REQUIRED TEST CONDITIONS ............................................. 3 3.1...3. REQUIRED TEST CONDITIONS . 3.1 Air Vehicle Flight Test Techniques. Many different flight test techniques are in existence. As technology

  9. Liquid Rocket Engine Testing

    NASA Technical Reports Server (NTRS)

    Rahman, Shamim

    2005-01-01

    Comprehensive Liquid Rocket Engine testing is essential to risk reduction for Space Flight. Test capability represents significant national investments in expertise and infrastructure. Historical experience underpins current test capabilities. Test facilities continually seek proactive alignment with national space development goals and objectives including government and commercial sectors.

  10. Testing. Occasional Papers 21.

    ERIC Educational Resources Information Center

    Culhane, P. T., Ed.; White, J., Ed.

    Five papers on testing in English as a second language are included in this volume. "A Preliminary Diagnostic Test for Adult Immigrants" by Johan I. Arthur presents the first stage in a project to develop a test for limited English speaking adults in the Colchester, Essex area. "An Initial Testing Battery on a Course for Air Traffic…

  11. 50 Years of Testing

    NASA Image and Video Library

    2016-04-23

    A 15-second test of a Saturn V rocket stage on the A-2 Test Stand at Stennis Space Center ushered in the Space Age for south Mississippi. Fifty years later, Stennis has grown into the nation’s largest rocket engine test site, continuing to test rocket engines and stages that power the nation’s space program.

  12. Busy test week

    NASA Image and Video Library

    2012-11-08

    NASA engineer Andy Guymon studies data in the E-3 Test Stand Control Center at John C. Stennis Space Center during testing of NASA's Project Morpheus engine. Nov. 8. The test of the liquid oxygen, liquid methane engine was one of 27 conducted in Stennis' E Test Complex the week of Nov. 5.

  13. Busy test week

    NASA Image and Video Library

    2012-11-08

    Jason Hopper of NASA (front row), Jody Ladner of Lockheed Martin (back row, left) and Chris Mulkey of NASA prepare to test the Blue Origin BE-3 engine thrust chamber in the E-1 Test Stand Control Center at John C. Stennis Space Center on Nov. 8. The test was one of 27 conducted in Stennis' E Test Complex the week of Nov. 5.

  14. Testing Our Limits

    ERIC Educational Resources Information Center

    Tempel, Melissa Bollow

    2012-01-01

    Computerized testing, including the widely used MAP test, has infiltrated the public schools in Milwaukee and across the nation, bringing with it a frightening future for public education. High-stakes standardized tests can be scored almost immediately via the internet, and testing companies can now easily link districts to their online data…

  15. Deconstructing Test Anxiety

    ERIC Educational Resources Information Center

    Putwain, David William

    2008-01-01

    Recent changes to educational policy which have focused attention on the use of high stakes testing as performance and accountability measures have renewed interest in test anxiety both in the UK and the USA. The aim of this paper is to provide a critical examination of the test anxiety construct, and explore the ways in which test anxiety is…

  16. Parents Can Understand Testing.

    ERIC Educational Resources Information Center

    Dyer, Henry S.

    This handbook aims to help parents become more familiar with the testing that goes on in their community schools. The first two chapters provide general background on testing, giving the reason and scope of educational testing today, and highlighting the fundamentals of the testing-measurement process. Chapters 3 and 4 consider the various…

  17. Language Testing: New Openings.

    ERIC Educational Resources Information Center

    Huhta, Ari, Ed.; And Others

    A collection of articles on second-language testing includes: "The State of Language Testing in the 1990s" (J. Charles Alderson); "The Exercise of Power and Control in the Rhetorics of Testing" (Elana Shohamy); "Institutional and Political Aspects of Language Testing" (Bernard Spolsky); "Language Planning Policy…

  18. Psychological Tests and Minorities.

    ERIC Educational Resources Information Center

    Wright, Brenda Johnson; Isenstein, Vivian R.

    The problems with traditional testing, particularly as they relate to minorities, are discussed; and psychological tests designed specifically for Blacks are reviewed. Considered are general problems, problems with testing at the higher education level and for employment, and moral and legal implications of the testing controversy. The rationale…

  19. Bibliography of Test Criticism.

    ERIC Educational Resources Information Center

    Pasanella, Ann K.; And Others

    This is a selected compilation of 47 items relating to criticisms of tests and testing. The items cover the period of ten years immediately preceding the year 1966 and are held to be scholarly writings almost without exception. The books and articles listed carry extensive annotations and focus on the following aspects of tests and testing:…

  20. Flight Test Series 3: Flight Test Report

    NASA Technical Reports Server (NTRS)

    Marston, Mike; Sternberg, Daniel; Valkov, Steffi

    2015-01-01

    This document is a flight test report from the Operational perspective for Flight Test Series 3, a subpart of the Unmanned Aircraft System (UAS) Integration in the National Airspace System (NAS) project. Flight Test Series 3 testing began on June 15, 2015, and concluded on August 12, 2015. Participants included NASA Ames Research Center, NASA Armstrong Flight Research Center, NASA Glenn Research Center, NASA Langley Research center, General Atomics Aeronautical Systems, Inc., and Honeywell. Key stakeholders analyzed their System Under Test (SUT) in two distinct configurations. Configuration 1, known as Pairwise Encounters, was subdivided into two parts: 1a, involving a low-speed UAS ownship and intruder(s), and 1b, involving a high-speed surrogate ownship and intruder. Configuration 2, known as Full Mission, involved a surrogate ownship, live intruder(s), and integrated virtual traffic. Table 1 is a summary of flights for each configuration, with data collection flights highlighted in green. Section 2 and 3 of this report give an in-depth description of the flight test period, aircraft involved, flight crew, and mission team. Overall, Flight Test 3 gathered excellent data for each SUT. We attribute this successful outcome in large part from the experience that was acquired from the ACAS Xu SS flight test flown in December 2014. Configuration 1 was a tremendous success, thanks to the training, member participation, integration/testing, and in-depth analysis of the flight points. Although Configuration 2 flights were cancelled after 3 data collection flights due to various problems, the lessons learned from this will help the UAS in the NAS project move forward successfully in future flight phases.

  1. The Acoustic Test Environment for Hearing Testing.

    PubMed

    Margolis, Robert H; Madsen, Brandon

    2015-10-01

    Audiology clinics traditionally employ expensive, prefabricated sound rooms to create an environment that is sufficiently quiet for accurate hearing tests. There is seldom any analysis of the need for or benefit from such enclosures. There may be less expensive methods that would decrease the cost of and increase access to hearing testing. This report provides information concerning the need for and effectiveness of sound rooms and an analysis of the audiometric test ranges for various earphone/room combinations. Acoustic measurements made in four rooms were analyzed with the attenuation provided by various earphone designs to determine the maximum permissible ambient noise levels and the corresponding audiometric test ranges. The measurements and calculations were performed with four test rooms and five earphone designs. Ambient noise levels and earphone attenuation characteristics were used to calculate the noise levels that reach the ear. Those were compared to the maximum permissible ambient noise levels that are provided in ANSI S3.1-1999 or calculated from measured attenuation levels. These measurements were used to calculate testable ranges for each room/earphone combination. The various room/earphone combinations resulted in minimum test levels that ranged from -10 to 20 dB HL at various test frequencies. When the actual benefits of expensive prefabricated sound rooms are assessed based on the range of hearing levels that can be tested, the effectiveness of that approach becomes highly questionable. Less expensive methods based on planning the clinic space, use of inexpensive sound treatments, and selecting an appropriate earphone can be effective in almost any space that would be used for hearing testing. American Academy of Audiology.

  2. Entry/Exit Port testing, test report

    SciTech Connect

    Winkelman, R.H.

    1993-05-01

    The Waste Receiving and Processing Module I (WRAP-1) facility must have the ability to allow 55-gallon drums to enter and exit glovebox enclosures. An Entry/Exit Port (Appendix 1, Figure 1), designed by United Engineers and Constructors (UE&C), is one method chosen for drum transfer. The Entry/Exit Port is to be used for entry of 55-gallon drums into both process entry gloveboxes, exit of 55-gallon drum waste pucks from the low-level waste (LLW) glovebox, and loadout of waste from the restricted waste management glovebox. The Entry/Exit Port relies on capture velocity air flow and a neoprene seal to provide alpha confinement when the Port is in the open and closed positions, respectively. Since the glovebox is in a slight vacuum, air flow is directed into the glovebox through the space between the overpack drum and glovebox floor. The air flow is to direct any airborne contamination into the glovebox. A neoprene seal is used to seal the Port door to the glovebox floor, thus maintaining confinement in the closed position. Entry/Exit Port testing took place February 17, 1993, through April 14, 1993, in the 305 building of Westinghouse Hanford Company. Testing was performed in accordance with the Entry/Exit Port Testing Test Plan, document number WHC-SD-WO26-TP-005. A prototype Entry/Exit Port built at the Hanford Site was tested using fluorescent paint pigment and smoke candles as simulant contaminants. This test report is an interim test report. Further developmental testing is required to test modifications made to the Port as the original design of the Port did not provide complete confinement during all stages of operation.

  3. Flight Test Engineering

    NASA Technical Reports Server (NTRS)

    Pavlock, Kate Maureen

    2013-01-01

    Although the scope of flight test engineering efforts may vary among organizations, all point to a common theme: flight test engineering is an interdisciplinary effort to test an asset in its operational flight environment. Upfront planning where design, implementation, and test efforts are clearly aligned with the flight test objective are keys to success. This chapter provides a top level perspective of flight test engineering for the non-expert. Additional research and reading on the topic is encouraged to develop a deeper understanding of specific considerations involved in each phase of flight test engineering.

  4. Clinical colour vision tests.

    PubMed

    Dain, Stephen J

    2004-07-01

    The structure and function of the available and significant clinical colour vision tests are reviewed in the light of the needs in the clinical examination of congenital and acquired colour vision deficiencies. The tests are grouped and described as pseudo-isochromatic plates, arrangement tests, matching tests and vocational tests. The colorimetric constructions of the test types are described and the efficiency of their performance and usefulness discussed. Recommendations are made for basic and extended test batteries, when examining of congenital and acquired colour vision deficiencies in the consulting room.

  5. Dtest Testing Software

    NASA Technical Reports Server (NTRS)

    Jain, Abhinandan; Cameron, Jonathan M.; Myint, Steven

    2013-01-01

    This software runs a suite of arbitrary software tests spanning various software languages and types of tests (unit level, system level, or file comparison tests). The dtest utility can be set to automate periodic testing of large suites of software, as well as running individual tests. It supports distributing multiple tests over multiple CPU cores, if available. The dtest tool is a utility program (written in Python) that scans through a directory (and its subdirectories) and finds all directories that match a certain pattern and then executes any tests in that directory as described in simple configuration files.

  6. Pancreatic exocrine function testing

    SciTech Connect

    Goff, J.S.

    1981-11-01

    It is important to understand which pancreatic function tests are available and how to interpret them when evaluating patients with malabsorption. Available direct tests are the secretin stimulation test, the Lundh test meal, and measurement of serum or fecal enzymes. Indirect tests assess pancreatic exocrine function by measuring the effect of pancreatic secretion on various nutrients. These include triglycerides labeled with carbon 14, cobalamin labeled with cobalt 57 and cobalt 58, and para-aminobenzoic acid bound to a dipeptide. Of all these tests the secretin stimulation test is the most accurate and reliable if done by experienced personnel. However, the indirect tests are simpler to do and appear to be comparable to the secretin test at detecting pancreatic exocrine insufficiency. These indirect tests are becoming clinically available and clinicians should familiarize themselves with the strengths and weaknesses of each.

  7. HIV testing in Switzerland.

    PubMed

    Jeannin, A; Dubois-Arber, F; Paccaud, F

    1994-11-01

    To obtain information about the prevalence of, reasons for, and adequacy of HIV testing in the general population in Switzerland in 1992. Telephone survey (n = 2800). Some 47% of the sample underwent one HIV test performed through blood donation (24%), voluntary testing (17%) or both (6%). Of the sample, 46% considered themselves well or very well informed about the HIV test. Patients reported unsystematic pre-test screening by doctors for the main HIV risks. People having been in situations of potential exposure to risk were more likely to have had the test than others. Overall, 85% of those HIV-tested had a relevant, generally risk-related reason for having it performed. HIV testing is widespread in Switzerland. Testing is mostly performed for relevant reasons. Pre-test counselling is poor and an opportunity for prevention is thus lost.

  8. NGST Optical Testing

    NASA Technical Reports Server (NTRS)

    Keski-Kuha, Ritva

    1999-01-01

    An Integrated Product Team (IPT) was formed to develop a detailed optical test methodology for testing of the Next Generation Space Telescope (NGST) mirrors and the optical system on the ground. Optical testing is a significant cost driver therefore the testing has to be planned in detailed fashion early. This paper will discuss the preliminary metrology test plan at the mirror component and telescope system level. Instrumentation, facilities and schedule will also be addressed.

  9. Romberg and his test.

    PubMed

    Rogers, J H

    1980-12-01

    In the eponymous test described by Romberg in 1846, the erect patient is asked to close his eyes. If he falls, the test is positive and indicates the presence of a dorsal column lesion. Slight modifications have been described in the test but in all cases, great care must be taken to do it carefully. The test compares the stability of eye-opening with that of eye-closure. A positive test does not indicate vestibular or cerebellar disease.

  10. Solderability test system

    DOEpatents

    Yost, Fred; Hosking, Floyd M.; Jellison, James L.; Short, Bruce; Giversen, Terri; Reed, Jimmy R.

    1998-01-01

    A new test method to quantify capillary flow solderability on a printed wiring board surface finish. The test is based on solder flow from a pad onto narrow strips or lines. A test procedure and video image analysis technique were developed for conducting the test and evaluating the data. Feasibility tests revealed that the wetted distance was sensitive to the ratio of pad radius to line width (l/r), solder volume, and flux predry time.

  11. Solderability test system

    DOEpatents

    Yost, F.; Hosking, F.M.; Jellison, J.L.; Short, B.; Giversen, T.; Reed, J.R.

    1998-10-27

    A new test method to quantify capillary flow solderability on a printed wiring board surface finish. The test is based on solder flow from a pad onto narrow strips or lines. A test procedure and video image analysis technique were developed for conducting the test and evaluating the data. Feasibility tests revealed that the wetted distance was sensitive to the ratio of pad radius to line width (l/r), solder volume, and flux predry time. 11 figs.

  12. FOS Target Acquisition Test

    NASA Astrophysics Data System (ADS)

    Koratkar, Anuradha

    1994-01-01

    FOS onboard target acquisition software capabilities will be verified by this test -- point source binary, point source firmware, point source peak-up, wfpc2 assisted realtime, point source peak-down, taled assisted binary, taled assisted firmware, and nth star binary modes. The primary modes are tested 3 times to determine repeatability. This test is the only test that will verify mode-to-mode acquisition offsets. This test has to be conducted for both the RED and BLUE detectors.

  13. Selected response test items.

    PubMed

    Tomey, A M

    1999-01-01

    Classroom assessment is complex and challenging. Teachers need to consider the cognitive, affective, and psychomotor levels for achievement of their educational objectives. This series of six articles discusses how to develop testing blue-prints; selected-response tests, including multiple-choice, true-false, matching, or other objective tests; completion or essay testing; problem solving/critical thinking activities; performance assessment; and computer-based testing.

  14. Seat test program

    NASA Technical Reports Server (NTRS)

    Bricker, R. W.

    1979-01-01

    The test program has the objectives to: (1) evaluate severity of newspaper ignition source with contemporary seats (determine weight loss, visual damage, and if ignition source is severe enough to show improvement with new material configurations); (2) compare damage with jet A-1 ignition source; and (3) determine if materials for seat tests pass FAR 25 and obtain L01. Test configurations, data acquired, material test results, seat test results, and conclusions are presented.

  15. Test Control Center exhibit

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Have you ever wondered how the engineers at John C. Stennis Space Center in Hancock County, Miss., test fire a Space Shuttle Main Engine? The Test Control Center exhibit at StenniSphere can answer your questions by simulating the test firing of a Space Shuttle Main Engine. A recreation of one of NASA's test control centers, the exhibit explains and portrays the 'shake, rattle and roar' that happens during a real test firing.

  16. Análise dos Conceitos Astronômicos Apresentados por Professores de Algumas Escolas Estaduais Brasileiras

    NASA Astrophysics Data System (ADS)

    Voelzke, Marcos Rincon; Gonzaga, Edson Pereira

    2011-12-01

    A razão para o desenvolvimento deste trabalho baseia-se no fato de que muitos professores da Educação Básica (EB) não lidam com conceitos relacionados à astronomia, e quando o fazem eles simplesmente seguem livros didáticos que podem conter erros conceituais. Como é de conhecimento geral a astronomia é um dos conteúdos a serem ensinados na EB fazendo parte dos Parâmetros Curriculares Nacionais e das Propostas Curriculares do Estado de São Paulo, mas é um fato, que vários pesquisadores apontam, a existência de muitos problemas no ensino da astronomia. Com o propósito de minimizar algumas dessas deficiências foi realizado um trabalho de pesquisa com a utilização de questionários pré e pós pesquisa, para tanto foi desenvolvido um Curso de Extensão Universitária para professores da Diretoria de Ensino Regional (DE) que abrange Mauá, Ribeirão Pires e Rio Grande da Serra (no Estado de São Paulo) com os seguintes objetivos: levantar concepções alternativas; subsidiar os professores por meio de palestras, debates e workshops, e verificar o sucesso da aprendizagem após o curso, adotando-se como referência, para a análise dos resultados, os dicionários de Língua Portuguesa (FERREIRA, 2004) e Enciclopédico de Astronomia e Astronáutica (MOURĀO, 1995). Portanto, dezesseis questões foram aplicadas antes e após o curso, assim pode-se verificar após a pesquisa que 100,0% dos professores sabiam os nomes das fases da Lua, 97,0% entenderam que o Sistema Solar é composto por oito planetas, 78,1% foram capazes de explicar como ocorre um eclipse lunar, um eclipse solar e um solstício, 72,7% sabiam como explicar a ocorrência das estações do ano; 64,5% explicaram corretamente a ocorrência do equinócio, 89,7% foram capazes de definir adequadamente o termo cometa; 63,6% definiram asteróide, 54,5% meteoro, 58,1% galáxia, e 42,4% planeta. Os resultados obtidos indicam uma aprendizagem significativa por parte dos participantes.

  17. Antimicrobials Products Tested or Pending Testing

    EPA Pesticide Factsheets

    The agency has completed testing of the majority of registered hospital disinfectants and tuberculocide products. The list of products can assist users in making informed choices regarding infection control in their facilities.

  18. Solid Propellant Test Article (SPTA) Test Stand

    NASA Technical Reports Server (NTRS)

    1991-01-01

    This photograph shows the Solid Propellant Test Article (SPTA) test stand with the Modified Nasa Motor (M-NASA) test article at the Marshall Space Flight Center (MSFC). The SPTA test stand, 12-feet wide by 12-feet long by 24-feet high, was built in 1989 to provide comparative performance data on nozzle and case insulation material and to verify thermostructural analysis models. A modified NASA 48-inch solid motor (M-NASA motor) with a 12-foot blast tube and 10-inch throat makes up the SPTA. The M-NASA motor is being used to evaluate solid rocket motor internal non-asbestos insulation materials, nozzle designs, materials, and new inspection techniques. New internal motor case instrumentation techniques are also being evaluated.

  19. Solid Propellant Test Article (SPTA) Test Stand

    NASA Technical Reports Server (NTRS)

    1991-01-01

    This photograph shows the Solid Propellant Test Article (SPTA) test stand with the Modified Nasa Motor (M-NASA) test article at the Marshall Space Flight Center (MSFC). The SPTA test stand, 12-feet wide by 12-feet long by 24-feet high, was built in 1989 to provide comparative performance data on nozzle and case insulation material and to verify thermostructural analysis models. A modified NASA 48-inch solid motor (M-NASA motor) with a 12-foot blast tube and 10-inch throat makes up the SPTA. The M-NASA motor is being used to evaluate solid rocket motor internal non-asbestos insulation materials, nozzle designs, materials, and new inspection techniques. New internal motor case instrumentation techniques are also being evaluated.

  20. hCG Test (Pregnancy Test)

    MedlinePlus

    ... with a progesterone test , to help diagnose an ectopic pregnancy , to help diagnose and monitor a pregnancy ... practitioner wants to identify or rule out an ectopic pregnancy or to monitor a woman after a ...

  1. Testing, Testing: Good Teaching Is Difficult; so is Meaningful Testing

    ERIC Educational Resources Information Center

    Toby, Sidney; Plano, Richard J.

    2004-01-01

    The limitations of teaching and assessment of knowledge are emphasized, and an improved method is suggested to test the students. This superior examination technique would replace multiple-choice questions with free-response questions for numerical problems, wherein the numerical inputs fed in the computer would be optically scanned and graded…

  2. Letter Directionality Test, Word Directionality Test, and Sentence Directionality Test.

    ERIC Educational Resources Information Center

    Twohig, Brian T.

    Designed to measure the subject's ability to discriminate among alphabetic letters varied over three spatial dimensions (left-right, vertical, and combination left-right and vertical), the tests can be administered in groups and take about twenty minutes to complete. Ten letters of the alphabet were selected for assymetry (for example, b-d) and…

  3. Wolf Testing: Open Source Testing Software

    NASA Astrophysics Data System (ADS)

    Braasch, P.; Gay, P. L.

    2004-12-01

    Wolf Testing is software for easily creating and editing exams. Wolf Testing allows the user to create an exam from a database of questions, view it on screen, and easily print it along with the corresponding answer guide. The questions can be multiple choice, short answer, long answer, or true and false varieties. This software can be accessed securely from any location, allowing the user to easily create exams from home. New questions, which can include associated pictures, can be added through a web-interface. After adding in questions, they can be edited, deleted, or duplicated into multiple versions. Long-term test creation is simplified, as you are able to quickly see what questions you have asked in the past and insert them, with or without editing, into future tests. All tests are archived in the database. Written in PHP and MySQL, this software can be installed on any UNIX / Linux platform, including Macintosh OS X. The secure interface keeps students out, and allows you to decide who can create tests and who can edit information already in the database. Tests can be output as either html with pictures or rich text without pictures, and there are plans to add PDF and MS Word formats as well. We would like to thank Dr. Wolfgang Rueckner and the Harvard University Science Center for providing incentive to start this project, computers and resources to complete this project, and inspiration for the project's name. We would also like to thank Dr. Ronald Newburgh for his assistance in beta testing.

  4. Test Methods for Acceptance Testing of Telescopes

    DTIC Science & Technology

    1993-07-01

    instrument. Although various interferometer configurations are used, they all basically operate on the same principle. The beam from a stable continuous...a Goerz with a nominal focal length of 92 inches. This lens has been recoated and carefully aligned to produce excellent image quality. The focus...test. Such requirements are necessary when the procuring agency has no facilities for performing adequate tests. It is also an excellent policy even

  5. Nevada Test Site Sensor Test Facility

    SciTech Connect

    Gomez, B.J.; Boyer, W.B.

    1996-12-01

    A Sensor Test Facility (STF) was recently established at the Department of Energy`s Nevada Test Site (NTS). It has been used for a series of sensor tests that have demonstrated the usefulness of the testbed. The facility consists of a cut-and-cover bunker complex and the two square mile surrounding area. The STF was developed as a scientific testbed optimized for the development and evaluation of advanced sensor systems, including ground sensor systems designed to identify and detect hardened underground facilities. This was accomplished by identifying a facility in a remote location where seismic, acoustic, and electromagnetic interference would be minimal, establishing a testbed that would be accommodating to field testing, and conducting a thorough geophysical characterization of the area surrounding the facility in order to understand the local geology and its effects on geophysical signals emanating from the facility. The STF is representative of a number of cut-and-cover bunkers around the world that are used for the manufacture and/or storage of weapons of mass destruction. This paper provides a general description of the Nevada Test Site, the Sensor Test Facility, and the Geophysical Site Characterization.

  6. Morpheus Vertical Test Bed Flight Testing

    NASA Technical Reports Server (NTRS)

    Hart, Jeremy; Devolites, Jennifer

    2014-01-01

    NASA's Morpheus Project has developed and tested a prototype planetary lander capable of vertical takeoff and landing, that is designed to serve as a testbed for advanced spacecraft technologies. The lander vehicle, propelled by a LOX/Methane engine and sized to carry a 500kg payload to the lunar surface, provides a platform for bringing technologies from the laboratory into an integrated flight system at relatively low cost. Morpheus onboard software is autonomous from ignition all the way through landing, and is designed to be capable of executing a variety of flight trajectories, with onboard fault checks and automatic contingency responses. The Morpheus 1.5A vehicle performed 26 integrated vehicle test flights including hot-fire tests, tethered tests, and two attempted freeflights between April 2011 and August 2012. The final flight of Morpheus 1.5A resulted in a loss of the vehicle. In September 2012, development began on the Morpheus 1.5B vehicle, which subsequently followed a similar test campaign culminating in free-flights at a simulated planetary landscape built at Kennedy Space Center's Shuttle Landing Facility. This paper describes the integrated test campaign, including successes and setbacks, and how the system design for handling faults and failures evolved over the course of the project.

  7. Testing Tests on Active Galactic Nucleus Microvariability

    NASA Astrophysics Data System (ADS)

    de Diego, José A.

    2010-03-01

    Literature on optical and infrared microvariability in active galactic nuclei (AGNs) reflects a diversity of statistical tests and strategies to detect tiny variations in the light curves of these sources. Comparison between the results obtained using different methodologies is difficult, and the pros and cons of each statistical method are often badly understood or even ignored. Even worse, improperly tested methodologies are becoming more and more common, and biased results may be misleading with regard to the origin of the AGN microvariability. This paper intends to point future research on AGN microvariability toward the use of powerful and well-tested statistical methodologies, providing a reference for choosing the best strategy to obtain unbiased results. Light curves monitoring has been simulated for quasars and for reference and comparison stars. Changes for the quasar light curves include both Gaussian fluctuations and linear variations. Simulated light curves have been analyzed using χ2 tests, F tests for variances, one-way analyses of variance and C-statistics. Statistical Type I and Type II errors, which indicate the robustness and the power of the tests, have been obtained in each case. One-way analyses of variance and χ2 prove to be powerful and robust estimators for microvariations, while the C-statistic is not a reliable methodology and its use should be avoided.

  8. TRL - A FORMAL TEST REPRESENTATION LANGUAGE AND TOOL FOR FUNCTIONAL TEST DESIGNS

    NASA Technical Reports Server (NTRS)

    Hops, J. M.

    1994-01-01

    of values should be included, especially the ones that will maximize error detection. The purpose of the final step, partition constraint analysis, is to refine the test design specification so that only the technically effective and economically feasible test cases are implied. TRL is written in C-language to be machine independent. It has been successfully implemented on an IBM PC compatible running MS DOS, a Sun4 series computer running SunOS, an HP 9000/700 series workstation running HP-UX, a DECstation running DEC RISC ULTRIX, and a DEC VAX series computer running VMS. TRL requires 1Mb of disk space and a minimum of 84K of RAM. The documentation is available in electronic form in Word Perfect format. The standard distribution media for TRL is a 5.25 inch 360K MS-DOS format diskette. Alternate distribution media and formats are available upon request. TRL was developed in 1993 and is a copyrighted work with all copyright vested in NASA.

  9. TRL - A FORMAL TEST REPRESENTATION LANGUAGE AND TOOL FOR FUNCTIONAL TEST DESIGNS

    NASA Technical Reports Server (NTRS)

    Hops, J. M.

    1994-01-01

    of values should be included, especially the ones that will maximize error detection. The purpose of the final step, partition constraint analysis, is to refine the test design specification so that only the technically effective and economically feasible test cases are implied. TRL is written in C-language to be machine independent. It has been successfully implemented on an IBM PC compatible running MS DOS, a Sun4 series computer running SunOS, an HP 9000/700 series workstation running HP-UX, a DECstation running DEC RISC ULTRIX, and a DEC VAX series computer running VMS. TRL requires 1Mb of disk space and a minimum of 84K of RAM. The documentation is available in electronic form in Word Perfect format. The standard distribution media for TRL is a 5.25 inch 360K MS-DOS format diskette. Alternate distribution media and formats are available upon request. TRL was developed in 1993 and is a copyrighted work with all copyright vested in NASA.

  10. Thruster endurance test

    NASA Technical Reports Server (NTRS)

    Collett, C.

    1976-01-01

    A test system was built and several short term tests were completed. The test system included, in addition to the 30-cm ion thruster, a console for powering the thruster and monitoring performance, a vacuum facility for simulating a space environment, and a storage and feed system for the thruster propellant. This system was used to perform three short term tests (one 100-hour and two 500-hour tests), an 1108-hour endurance test which was aborted by a vacuum facility failure, and finally the 10,000-hour endurance test. In addition to the two 400 series thrusters which were used in the short term and 1100-hour tests, four more 400 series thrusters were fabricated, checked out, and delivered to NASA. Three consoles similar to the one used in the test program were also fabricated and delivered.

  11. Gas Test Loop Booster Fuel Hydraulic Testing

    SciTech Connect

    Gas Test Loop Hydraulic Testing Staff

    2006-09-01

    The Gas Test Loop (GTL) project is for the design of an adaptation to the Advanced Test Reactor (ATR) to create a fast-flux test space where fuels and materials for advanced reactor concepts can undergo irradiation testing. Incident to that design, it was found necessary to make use of special booster fuel to enhance the neutron flux in the reactor lobe in which the Gas Test Loop will be installed. Because the booster fuel is of a different composition and configuration from standard ATR fuel, it is necessary to qualify the booster fuel for use in the ATR. Part of that qualification is the determination that required thermal hydraulic criteria will be met under routine operation and under selected accident scenarios. The Hydraulic Testing task in the GTL project facilitates that determination by measuring flow coefficients (pressure drops) over various regions of the booster fuel over a range of primary coolant flow rates. A high-fidelity model of the NW lobe of the ATR with associated flow baffle, in-pile-tube, and below-core flow channels was designed, constructed and located in the Idaho State University Thermal Fluids Laboratory. A circulation loop was designed and constructed by the university to provide reactor-relevant water flow rates to the test system. Models of the four booster fuel elements required for GTL operation were fabricated from aluminum (no uranium or means of heating) and placed in the flow channel. One of these was instrumented with Pitot tubes to measure flow velocities in the channels between the three booster fuel plates and between the innermost and outermost plates and the side walls of the flow annulus. Flow coefficients in the range of 4 to 6.5 were determined from the measurements made for the upper and middle parts of the booster fuel elements. The flow coefficient for the lower end of the booster fuel and the sub-core flow channel was lower at 2.3.

  12. Rules for Optical Testing

    NASA Technical Reports Server (NTRS)

    Stahl, H. Philip

    2014-01-01

    Based on 30 years of optical testing experience, a lot of mistakes, a lot of learning and a lot of experience, I have defined seven guiding principles for optical testing - regardless of how small or how large the optical testing or metrology task: Fully Understand the Task, Develop an Error Budget, Continuous Metrology Coverage, Know where you are, Test like you fly, Independent Cross-Checks, Understand All Anomalies. These rules have been applied with great success to the inprocess optical testing and final specification compliance testing of the JWST mirrors.

  13. Metamorphic Testing for Cybersecurity

    PubMed Central

    Chen, Tsong Yueh; Kuo, Fei-Ching; Ma, Wenjuan; Susilo, Willy; Towey, Dave; Voas, Jeffrey

    2016-01-01

    Testing is a major approach for the detection of software defects, including vulnerabilities in security features. This article introduces metamorphic testing (MT), a relatively new testing method, and discusses how the new perspective of MT can help to conduct negative testing as well as to alleviate the oracle problem in the testing of security-related functionality and behavior. As demonstrated by the effectiveness of MT in detecting previously unknown bugs in real-world critical applications such as compilers and code obfuscators, we conclude that software testing of security-related features should be conducted from diverse perspectives in order to achieve greater cybersecurity. PMID:27559196

  14. Metamorphic Testing for Cybersecurity.

    PubMed

    Chen, Tsong Yueh; Kuo, Fei-Ching; Ma, Wenjuan; Susilo, Willy; Towey, Dave; Voas, Jeffrey; Zhou, Zhi Quan

    2016-06-01

    Testing is a major approach for the detection of software defects, including vulnerabilities in security features. This article introduces metamorphic testing (MT), a relatively new testing method, and discusses how the new perspective of MT can help to conduct negative testing as well as to alleviate the oracle problem in the testing of security-related functionality and behavior. As demonstrated by the effectiveness of MT in detecting previously unknown bugs in real-world critical applications such as compilers and code obfuscators, we conclude that software testing of security-related features should be conducted from diverse perspectives in order to achieve greater cybersecurity.

  15. Testing technology, January 1993

    SciTech Connect

    Goetsch, B.

    1993-01-01

    This bulletin from Sandia Laboratories presents current research on testing technology. Fiber optics systems at the Nevada Test Site is replacing coaxial cables. The hypervelocity launcher is being used to test orbital debris impacts with space station shielding. A digital recorder makes testing of high-speed water entries possible. Automobile engine design is aided by an instrumented head gasket that detects the combustion zone. And composite-to-metal strength and fatigue tests provide new data on joint failures in wind turbine joint tests.

  16. Wire Test Grip Fixture

    NASA Technical Reports Server (NTRS)

    Burke, Christopher S.

    2011-01-01

    Wire-testing issues, such as the gripping strains imposed on the wire, play a critical role in obtaining clean data. In a standard test frame fitted with flat wedge grips, the gripping action alone creates stresses on the wire specimen that cause the wire to fail at the grip location. A new test frame, which is outfitted with a vacuum chamber, negated the use of any conventional commercially available wire test fixtures, as only 7 in. (17.8 cm) existed between the grip faces. An innovative grip fixture was designed to test thin gauge wire for a variety of applications in an existing Instron test frame outfitted with a vacuum chamber.

  17. Materials Test Branch

    NASA Technical Reports Server (NTRS)

    Gordon, Gail

    2012-01-01

    The Materials Test Branch resides at Marshall Space Flight Center's Materials and Processing laboratory and has a long history of supporting NASA programs from Mercury to the recently retired Space Shuttle. The Materials Test Branch supports its customers by supplying materials testing expertise in a wide range of applications. The Materials Test Branch is divided into three Teams, The Chemistry Team, The Tribology Team and the Mechanical Test Team. Our mission and goal is to provide world-class engineering excellence in materials testing with a special emphasis on customer service.

  18. ECN Pressure Test

    SciTech Connect

    Dixon, K.; /Fermilab

    1991-07-18

    This note describes: the rationale for the test pressure of the inner ECN cryostat vessel, the equipment to be used in this test, the test procedure, the status of the vessel prior to the test, the actual test results, and a schematic diagram of the testing set up and the pressure testing permit. The test, performed in the evening of July 17, 1991, was a major success. Based on a neglible pressure drop indicated on the pressure gages (1/4 psi), the vessel appeared to be structurally sound throughout the duration of the test (approx. 1.5 hrs.). No pressure increases were observed on the indicators looking at the beam tube bellows volumes. There was no indication of bubbles form the soap test on the welds and most of the fittings that were checked. There were some slight deviations in the actual procedure used. The UO filter was removed after the vessel had bled down to about 18 psig in order to speed up that aspect of the test. The rationale was that the higher velocity gas had already passed through at the higher pressures and there was no visible traces of the black uo particles. The rate of 4 psi/10 minutes seemed incredibly slow and often that time was reduced to just over half that rate. The testing personnel was allowed to stay in the pit throughout the duration of the test; this was a slight relaxation of the rules.

  19. Smart HIV testing system.

    PubMed

    El Kateeb, Ali; Law, Peter; Chan, King

    2005-06-01

    The quick HIV testing method called "MiraWell Rapid HIV Test" uses a specialized testing kit to determine whether an individual's blood is contaminated with the HIV virus or not. When a drop of blood is placed on the center of the testing kit, a simple pattern will appear in the middle of the kit to indicate the test status, i.e., positive or negative. This HIV test should be done in a small clinic or in a lab and the test must be conducted by a trained technician. A smart HIV testing system was developed through this research to eliminate the human error that is associated with the use of the quick HIV testing kits. Also, the smart HIV system will improve the testing productivity in comparison to those achieved by the trained technicians. In this research, we have developed a cost-effective system that analyzes the image produced by the HIV kits. We have used a System-On-Chip (SOC) design approach based on the Field Programmable Gate Array (FPGA) technology and the Xilinx Virtex SOC chip in building the system's prototype. The system used a CMOS digital camera to capture the image and an FPGA chip to process the captured image and send the testing results to the display unit. The system can be used in small clinics and pharmacies and eliminates the need for trained technicians. The system has been tested successfully and 98% of the tests were correct.

  20. Force limited vibration testing

    NASA Technical Reports Server (NTRS)

    Scharton, Terry D.

    1991-01-01

    A new method of conducting lab vibration tests of spacecraft equipment was developed to more closely simulate the vibration environment experienced when the spacecraft is launched on a rocket. The improved tests are tailored to identify equipment design and workmanship problems without inducing artificial failures that would not have occurred at launch. These new, less destructive types of vibration tests are essential to JPL's protoflight test approach in which lab testing is conducted using the flight equipment, often one of a kind, to save time and money. In conventional vibration tests, only the input vibratory motion is specified; the feedback, or reaction force, between the test item and the vibration machine is ignored. Most test failures occur when the test item goes into resonance, and the reaction force becomes very large. It has long been recognized that the large reaction force is a test artifact which does not occur with the lightweight, flexible mounting structures characteristic of spacecraft and space vehicles. In new vibration tests, both the motion and the force provided to the test item by the vibration machine are controlled, so that the vibration ride experienced by the test item is as in flight.

  1. 32 CFR Appendix C to Part 197 - Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... the DoS for the FRUS series under Public Law No. 102-138. b. Request authorization from the CIA, NSC.... Submit to the respective Agency a list of CIA and NSC documents copied and released to the...

  2. 32 CFR Appendix C to Part 197 - Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... the DoS for the FRUS series under Public Law No. 102-138. b. Request authorization from the CIA, NSC.... Submit to the respective Agency a list of CIA and NSC documents copied and released to the...

  3. 32 CFR Appendix C to Part 197 - Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... the DoS for the FRUS series under Public Law No. 102-138. b. Request authorization from the CIA, NSC.... Submit to the respective Agency a list of CIA and NSC documents copied and released to the...

  4. 32 CFR Appendix C to Part 197 - Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... the DoS for the FRUS series under Public Law No. 102-138. b. Request authorization from the CIA, NSC.... Submit to the respective Agency a list of CIA and NSC documents copied and released to the...

  5. 32 CFR Appendix C to Part 197 - Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... the DoS for the FRUS series under Public Law No. 102-138. b. Request authorization from the CIA, NSC.... Submit to the respective Agency a list of CIA and NSC documents copied and released to the...

  6. Methylene blue test

    MedlinePlus

    ... determine the type or to treat methemoglobinemia , a blood disorder. ... Methemoglobinemia - methylene blue test ... Normally, methylene blue quickly lowers the level of ... Some labs use different measurements or test different samples. ...

  7. LDL Particle Testing

    MedlinePlus

    ... tests: HDL Cholesterol ; LDL Cholesterol ; Direct LDL Cholesterol ; Lipid Profile ; Cholesterol ; Apo A-I ; Apo B ; Lp(a) ; ... is typically done along with or following a lipid profile . While for many people, the LDL-C test ...

  8. Testing for HIV

    MedlinePlus

    ... Medical Devices Radiation-Emitting Products Vaccines, Blood & Biologics Animal & Veterinary Cosmetics Tobacco Products Vaccines, Blood & Biologics Home Vaccines, Blood & Biologics Safety & Availability (Biologics) HIV Home Test Kits Testing for HIV Share Tweet Linkedin Pin it More ...

  9. Chloride test - blood

    MedlinePlus

    ... of body fluids and maintain the body's acid-base balance. This article is about the laboratory test ... signs that your body's fluid level or acid-base balance is disturbed. This test is most often ...

  10. Aldolase blood test

    MedlinePlus

    ... cell damage include: CPK (creatine phosphokinase) test LDH (lactate dehydrogenase) test Normal Results Normal results range between ... skeletal muscles Heart attack Liver, pancreatic, or prostate cancer Muscle disease such as dermatomyositis , muscular dystrophy , polymyositis ...

  11. FTA-ABS test

    MedlinePlus

    ... absorption test Images Blood test References LaSala PR, Smith MB. Spirochete infections. In: McPherson RA, Pincus MR, ... commercial use must be authorized in writing by ADAM Health Solutions. About MedlinePlus Site Map FAQs Customer ...

  12. ISS Update: Suitport Testing

    NASA Image and Video Library

    ISS Update commentator Lynnette Madison interviews Joel Maganza, Test Director, about thermal vacuum chambers and unmanned and human-testing with the Suitport. Questions? Ask us on Twitter @NASA_Jo...

  13. Osmolality - blood test

    MedlinePlus

    ... test that measures the concentration of all chemical particles found in the fluid part of blood. Osmolality ... different samples. Talk to your provider about the meaning of your specific test results.

  14. Osmolality urine test

    MedlinePlus

    The osmolality urine test measures the concentration of particles in urine. Osmolality can also be measured using ... different samples. Talk to your provider about the meaning of your specific test results.

  15. Cord blood testing

    MedlinePlus

    ... due to infections the baby gets. Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results. Considerations Most hospitals routinely collect cord blood for testing ...

  16. Exams and Test Descriptions

    MedlinePlus

    ... look inside. Endoscopy Colonoscopy and Sigmoidoscopy Biopsy and Cytology Tests Waiting to hear a possible cancer diagnosis ... best decisions about your treatment. Testing Biopsy and Cytology Specimens for Cancer Breast Biopsy Understanding Your Lab ...

  17. Safety and abuse testing

    NASA Technical Reports Server (NTRS)

    Younger, G.

    1978-01-01

    A series of abuse tests on large lithium thionyl chloride cells was initiated. Performance data obtained in testing rectangular 2,000 and 10,000 ampere-hour cells are discussed and graphically presented.

  18. Liver Function Tests

    MedlinePlus

    ... Your Liver > Liver Disease Information > Liver Function Tests Liver Function Tests Explore this section to learn more ... including a description and diagnosis. Why is the liver important? The liver is the second largest organ ...

  19. Uric acid test (image)

    MedlinePlus

    Uric acid urine test is performed to check for the amount of uric acid in urine. Urine is collected over a 24 ... testing. The most common reason for measuring uric acid levels is in the diagnosis or treatment of ...

  20. Control system testing

    NASA Astrophysics Data System (ADS)

    Whittler, W. H.; Collart, R. E.

    1984-08-01

    A three stage process of ground testing of the Space Telescope Pointing Control System is used for verification prior to on-orbit operation. First, development tests are conducted in a laboratory environment using flight/engineering model control sensor and actuators configured with an engineering model of the flight computer and data management system breadboards. These development tests validate the results of computer simulations predicting control system performance. Integration tests bring together flight system elements and software interfaced to a software simulation of vehicle dynamics to confirm closed loop performance. The final ground test phase, flight systems testing, is conducted on the fully assembled Space Telescope, verifies interfaces with the Fine Guidance Sensors and includes a thermal vacuum testing period. During the final test phase, the Point Control System is exercised with the dynamics simulator running in real time.

  1. 17-Ketosteroids urine test

    MedlinePlus

    ... 6 to 12 mg per 24 hr Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your doctor about the meaning of your specific test results.

  2. CMV serology test

    MedlinePlus

    ... transplant recipients and people with a suppressed immune system). The test may also be performed ... laboratories. Some labs use different measurements or test different samples. Talk to your doctor ...

  3. Blood Test: Testosterone

    MedlinePlus

    ... Estradiol Precocious Puberty Understanding Puberty Endocrine System Male Reproductive System Getting a Blood Test (Video) All About Puberty Blood Test (Video) Male Reproductive System Contact Us Print Resources Send to a friend ...

  4. Vitamin A blood test

    MedlinePlus

    ... this page: //medlineplus.gov/ency/article/003570.htm Vitamin A blood test To use the sharing features on this page, please enable JavaScript. The vitamin A test measures the level of vitamin A ...

  5. Your Kidney Test Results

    MedlinePlus

    ... blood vessels healthy. Vitamin D is important for bones and heart health. 1 Your Kidney Test Results Other Important Tests, continued A1C (for patients with diabetes) Results Goal: Your Result: Total Cholesterol Normal: Less ...

  6. The first PANDA tests

    SciTech Connect

    Dreier, J.; Huggenberger, M.; Aubert, C.

    1996-08-01

    The PANDA test facility at PSI in Switzerland is used to study the long-term Simplified Boiling Water Reactor (SBWR) Passive Containment Cooling System (PCCS) performance. The PANDA tests demonstrate performance on a larger scale than previous tests and examine the effects of any non-uniform spatial distributions of steam and non-condensables in the system. The PANDA facility has a 1:1 vertical scale, and 1:25 ``system`` scale (volume, power, etc.). Steady-state PCCS condenser performance tests and extensive facility characterization tests have been completed. Transient system behavior tests were conducted late in 1995; results from the first three transient tests (M3 series) are reviewed. The first PANDA tests showed that the overall global behavior of the SBWR containment was globally repeatable and very favorable; the system exhibited great ``robustness.``

  7. Sediment Toxicity Testing

    EPA Science Inventory

    Sediment toxicity testing has become a fundamental component of regulatory frameworks for assessing the risks posed by contaminated sediments and for development of chemical sediment quality guidelines. Over the past two decades, sediment toxicity testing methods have advanced co...

  8. Follow-Up Testing

    MedlinePlus

    ... the test is not important. The University of Chicago Celiac Disease Center recommends additional testing, because the ... well. For more information contact the University of Chicago Celiac Disease Center at 773.702.7593 or ...

  9. Standard environmental testing practices

    NASA Technical Reports Server (NTRS)

    Daniel, R.; Gregory, E.; Stoker, J.; Vanbiene, F.; Woodbury, R. C.

    1972-01-01

    Manual on procedural requirements for performing certain environmental tests on space flight equipment provides information for test equipment designers, quality control and production engineers. Contents of manual are summarized.

  10. Urine specific gravity test

    MedlinePlus

    ... medlineplus.gov/ency/article/003587.htm Urine specific gravity test To use the sharing features on this page, please enable JavaScript. Urine specific gravity is a laboratory test that shows the concentration ...

  11. Blood Differential Test

    MedlinePlus

    ... related condition What happens during a blood differential test? A health care professional will take a sample of your blood ... eat or drink) for several hours before the test. Your health care provider will let you know if there are ...

  12. HIV Antibody Test

    MedlinePlus

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities HIV Antibody and HIV Antigen (p24) Share this page: Was this page helpful? Also known as: HIV Screening Tests; AIDS Test; AIDS Screen; HIV Serology; ...

  13. Screening Tests and Vaccines

    MedlinePlus

    ... Contact Us Text size | Print | Screening Tests and Vaccines This information in Spanish ( en español ) Getting important screening tests and vaccines can save your life. Check this section of ...

  14. STRUCTURAL TEST ARTICLE

    NASA Image and Video Library

    2016-04-06

    FROM RIGHT, KATHRYN GUELDE AND ASHLEY HOLLADAY OF AERIE AEROSPACE LLC IN HUNTSVILLE, INSTALL THE STRUCTURAL TEST ARTICLE FOR THE FIRST SERIES OF COMPOSITE TESTS FOR THE SHELL BUCKLING KNOCKDOWN FACTOR PROJECT.

  15. Flexseal Insulator Test Assembly

    NASA Technical Reports Server (NTRS)

    Buchanan, Eric

    1995-01-01

    Small-scale version of solid-fuel rocket motor flexseal nozzle bearing assembly instrumented and tested in compression-testing fixture simulating conditions during rocket motor operation described in report.

  16. Lyme Disease Tests

    MedlinePlus

    ... Borrelia Antibodies, IgM/IgG; Borrelia DNA Detection by PCR Related tests: CSF Analysis All content on Lab ... fluid (CSF) . In special cases, polymerase chain reaction (PCR) testing may be performed on a sample because ...

  17. Blood Count Tests

    MedlinePlus

    ... white blood cells (WBC), and platelets. Blood count tests measure the number and types of cells in ... helps doctors check on your overall health. The tests can also help to diagnose diseases and conditions ...

  18. Blood Test: Testosterone

    MedlinePlus

    ... Estradiol Precocious Puberty Understanding Puberty Endocrine System Male Reproductive System Getting a Blood Test (Video) All About Puberty Blood Test (Video) Male Reproductive System Contact Us Print Resources Send to a Friend ...

  19. Sediment Toxicity Testing

    EPA Science Inventory

    Sediment toxicity testing has become a fundamental component of regulatory frameworks for assessing the risks posed by contaminated sediments and for development of chemical sediment quality guidelines. Over the past two decades, sediment toxicity testing methods have advanced co...

  20. A-3 Test Stand

    NASA Image and Video Library

    2011-08-19

    The A-3 Test Stand under construction at Stennis Space Center is set for completion and activation in 2013. It will allow operators to conduct simulated high-altitude testing on the next-generation J-2X rocket engine.

  1. Preparing to Test

    NASA Image and Video Library

    2015-03-26

    Stennis Space Center employees install a 96-inch valve during a recent upgrade of the high-pressure industrial water system that serves the site’s large rocket engine test stands. The upgraded system has a capacity to flow 335,000 gallons of water a minute, which is a critical element for testing. At Stennis, engines are anchored in place on large test stands and fired just as they are during an actual space flight. The fire and exhaust from the test is redirected out of the stand by a large flame trench. A water deluge system directs thousands of gallons of water needed to cool the exhaust. Water also must be available for fire suppression in the event of a mishap. The new system supports RS-25 engine testing on the A-1 Test Stand, as well as testing of the core stage of NASA’s new Space Launch System on the B-2 Test Stand at Stennis.

  2. Toddler test (image)

    MedlinePlus

    With proper preparation prior to a test or procedure, a toddler's fear and anxiety may be reduced. Preparing a child for a test may include going through the steps of the procedure, explaining the body part ...

  3. Test Control Center

    NASA Technical Reports Server (NTRS)

    2000-01-01

    At the test observation periscope in the Test Control Center exhibit in StenniSphere at the John C. Stennis Space Center in Hancock County, Miss., visitors can observe a test of a Space Shuttle Main Engine exactly as test engineers might see it during a real engine test. The Test Control Center exhibit exactly simulates not only the test control environment, but also the procedure of testing a rocket engine. Designed to entertain while educating, StenniSphere includes informative dispays and exhibits from NASA's lead center for rocket propulsion and remote sensing applications. StenniSphere is open free of charge from 9 a.m. to 5 p.m. daily.

  4. Alpha-1 antitrypsin test

    MedlinePlus

    ... this page: //medlineplus.gov/ency/article/003715.htm Alpha-1 antitrypsin blood test To use the sharing features on this page, please enable JavaScript. Alpha-1 antitrypsin is a laboratory test to measure ...

  5. TESTS - APOLLO 13

    NASA Image and Video Library

    1970-06-10

    S70-41983 (June 1970) --- Second photograph in sequence of three of panel separation test at Langley Research Center. The test was part of the Apollo 13 post flight investigation of the Service Module explosion incident. Photo credit: NASA

  6. Test Control Center

    NASA Technical Reports Server (NTRS)

    2000-01-01

    At the test observation periscope in the Test Control Center exhibit in StenniSphere at the John C. Stennis Space Center in Hancock County, Miss., visitors can observe a test of a Space Shuttle Main Engine exactly as test engineers might see it during a real engine test. The Test Control Center exhibit exactly simulates not only the test control environment, but also the procedure of testing a rocket engine. Designed to entertain while educating, StenniSphere includes informative dispays and exhibits from NASA's lead center for rocket propulsion and remote sensing applications. StenniSphere is open free of charge from 9 a.m. to 5 p.m. daily.

  7. Latex agglutination test

    MedlinePlus

    ... this page: //medlineplus.gov/ency/article/003334.htm Latex agglutination test To use the sharing features on this page, please enable JavaScript. The latex agglutination test is a laboratory method to check ...

  8. Test Control Center

    NASA Image and Video Library

    2000-10-25

    At the test observation periscope in the Test Control Center exhibit in StenniSphere at the John C. Stennis Space Center in Hancock County, Miss., visitors can observe a test of a Space Shuttle Main Engine exactly as test engineers might see it during a real engine test. The Test Control Center exhibit exactly simulates not only the test control environment, but also the procedure of testing a rocket engine. Designed to entertain while educating, StenniSphere includes informative dispays and exhibits from NASA's lead center for rocket propulsion and remote sensing applications. StenniSphere is open free of charge from 9 a.m. to 5 p.m. daily.

  9. Voyager Development Test Model

    NASA Image and Video Library

    2017-07-05

    This archival photo shows the encapsulation of the Voyager Development Test Model at NASA's Kennedy Space Center's Eastern Test Range. The picture was taken on October 8, 1976. https://photojournal.jpl.nasa.gov/catalog/PIA21730

  10. Voyager Development Test Model

    NASA Image and Video Library

    2017-07-05

    This archival photo shows the encapsulation of the Voyager Development Test Model at NASA's Kennedy Space Center's Eastern Test Range. The picture was taken on October 8, 1976. https://photojournal.jpl.nasa.gov/catalog/PIA21731

  11. Lactic acid test

    MedlinePlus

    Lactate test ... test. Exercise can cause a temporary increase in lactic acid levels. ... not getting enough oxygen. Conditions that can increase lactic acid levels include: Heart failure Liver disease Lung disease ...

  12. Blood Test: Estradiol

    MedlinePlus

    ... work so closely with one another, doctors often perform the estradiol test with tests for LH, FSH, testosterone (the male sex hormone — but teen and adult females produce some, too), and progesterone ( ...

  13. Who Trusts the Tests?

    ERIC Educational Resources Information Center

    Gurney, Roger

    1978-01-01

    The author reviews the advantages and disadvantages of standardized reading tests, with special reference to the new national reading tests designed by the Assessment of Performance Unit of the Department of Education and Science. (SJL)

  14. Serotonin blood test

    MedlinePlus

    5-HT level; 5-hydroxytryptamine level; Serotonin test ... Chernecky CC, Berger BJ. Serotonin (5-hydroxytryptamine) - serum or blood. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures . 6th ed. St Louis, MO: Elsevier ...

  15. Ethylene glycol blood test

    MedlinePlus

    ... this page: //medlineplus.gov/ency/article/003564.htm Ethylene glycol blood test To use the sharing features on ... enable JavaScript. This test measures the level of ethylene glycol in the blood. Ethylene glycol is a type ...

  16. Aldosterone and Renin Test

    MedlinePlus

    ... practitioner suspects that someone has adrenal insufficiency or Addison disease . One of those tests, the aldosterone stimulation test , ... aldosterone and cortisol to determine if someone has Addison disease, low pituitary function, or a pituitary tumor. A ...

  17. Imaging Sensor Flight and Test Equipment Software

    NASA Technical Reports Server (NTRS)

    Freestone, Kathleen; Simeone, Louis; Robertson, Byran; Frankford, Maytha; Trice, David; Wallace, Kevin; Wilkerson, DeLisa

    2007-01-01

    The Lightning Imaging Sensor (LIS) is one of the components onboard the Tropical Rainfall Measuring Mission (TRMM) satellite, and was designed to detect and locate lightning over the tropics. The LIS flight code was developed to run on a single onboard digital signal processor, and has operated the LIS instrument since 1997 when the TRMM satellite was launched. The software provides controller functions to the LIS Real-Time Event Processor (RTEP) and onboard heaters, collects the lightning event data from the RTEP, compresses and formats the data for downlink to the satellite, collects housekeeping data and formats the data for downlink to the satellite, provides command processing and interface to the spacecraft communications and data bus, and provides watchdog functions for error detection. The Special Test Equipment (STE) software was designed to operate specific test equipment used to support the LIS hardware through development, calibration, qualification, and integration with the TRMM spacecraft. The STE software provides the capability to control instrument activation, commanding (including both data formatting and user interfacing), data collection, decompression, and display and image simulation. The LIS STE code was developed for the DOS operating system in the C programming language. Because of the many unique data formats implemented by the flight instrument, the STE software was required to comprehend the same formats, and translate them for the test operator. The hardware interfaces to the LIS instrument using both commercial and custom computer boards, requiring that the STE code integrate this variety into a working system. In addition, the requirement to provide RTEP test capability dictated the need to provide simulations of background image data with short-duration lightning transients superimposed. This led to the development of unique code used to control the location, intensity, and variation above background for simulated lightning strikes

  18. Cold Flow Propulsion Test Complex Pulse Testing

    NASA Technical Reports Server (NTRS)

    McDougal, Kris

    2016-01-01

    When the propellants in a liquid rocket engine burn, the rocket not only launches and moves in space, it causes forces that interact with the vehicle itself. When these interactions occur under specific conditions, the vehicle's structures and components can become unstable. One instability of primary concern is termed pogo (named after the movement of a pogo stick), in which the oscillations (cycling movements) cause large loads, or pressure, against the vehicle, tanks, feedlines, and engine. Marshall Space Flight Center (MSFC) has developed a unique test technology to understand and quantify the complex fluid movements and forces in a liquid rocket engine that contribute strongly to both engine and integrated vehicle performance and stability. This new test technology was established in the MSFC Cold Flow Propulsion Test Complex to allow injection and measurement of scaled propellant flows and measurement of the resulting forces at multiple locations throughout the engine.

  19. VIEW OF EAST TEST SITE FROM TOP OF STATIC TEST ...

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

    VIEW OF EAST TEST SITE FROM TOP OF STATIC TEST TOWER VIEW INCLUDES STRUCTURAL DYNAMICS TEST STAND COLD CALIBRATION TEST STAND AND COMPONENTS TEST LAB. - Marshall Space Flight Center, East Test Area, Dodd Road, Huntsville, Madison County, AL

  20. Ada Compiler Validation Summary Report: Certificate Number: 900125N1. 10258, R. R. Software, Inc., Janus/Ada 2.1.3 386 to DOS Bell 386 Under Ms-Dos 4 Host

    DTIC Science & Technology

    1990-01-25

    Ada Validation Vabkdim Swmy Re t AVF-VSR-90502/69 R R Softmm Im 3MW/Ada 21.3 316 to DOS chaplerl - Page I of 5 INTRODUCTION Organization ( AVO ). On...1.2 USE OF THIS VALIDATION SUMMARY REPORT Consistent with the national laws of the originating country, the AVO may make full and free public...contained in the Ada Compiler Validation Procedures and Guidelines. AVO The Ada Validation Organization. The AVO has oversight authority over all AVF