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Sample records for science matthew received

  1. The Matthew effect in environmental science publication: a bibliometric analysis of chemical substances in journal articles.

    Science.gov (United States)

    Grandjean, Philippe; Eriksen, Mette L; Ellegaard, Ole; Wallin, Johan A

    2011-11-10

    While environmental research addresses scientific questions of possible societal relevance, it is unclear to what degree research focuses on environmental chemicals in need of documentation for risk assessment purposes. In a bibliometric analysis, we used SciFinder to extract Chemical Abstract Service (CAS) numbers for chemicals addressed by publications in the 78 major environmental science journals during 2000-2009. The Web of Science was used to conduct title searches to determine long-term trends for prominent substances and substances considered in need of research attention. The 119,636 journal articles found had 760,056 CAS number links during 2000-2009. The top-20 environmental chemicals consisted of metals, (chlorinated) biphenyls, polyaromatic hydrocarbons, benzene, and ethanol and contributed 12% toward the total number of links- Each of the top-20 substances was covered by 2,000-10,000 articles during the decade. The numbers for the 10-year period were similar to the total numbers of pre-2000 articles on the same chemicals. However, substances considered a high priority from a regulatory viewpoint, due to lack of documentation, showed very low publication rates. The persistence in the scientific literature of the top-20 chemicals was only weakly related to their publication in journals with a high impact factor, but some substances achieved high citation rates. The persistence of some environmental chemicals in the scientific literature may be due to a 'Matthew' principle of maintaining prominence for the very reason of having been well researched. Such bias detracts from the societal needs for documentation on less well known environmental hazards, and it may also impact negatively on the potentials for innovation and discovery in research.

  2. The Matthew effect in environmental science publication: A bibliometric analysis of chemical substances in journal articles

    Directory of Open Access Journals (Sweden)

    Grandjean Philippe

    2011-11-01

    Full Text Available Abstract Background While environmental research addresses scientific questions of possible societal relevance, it is unclear to what degree research focuses on environmental chemicals in need of documentation for risk assessment purposes. Methods In a bibliometric analysis, we used SciFinder to extract Chemical Abstract Service (CAS numbers for chemicals addressed by publications in the 78 major environmental science journals during 2000-2009. The Web of Science was used to conduct title searches to determine long-term trends for prominent substances and substances considered in need of research attention. Results The 119,636 journal articles found had 760,056 CAS number links during 2000-2009. The top-20 environmental chemicals consisted of metals, (chlorinated biphenyls, polyaromatic hydrocarbons, benzene, and ethanol and contributed 12% toward the total number of links- Each of the top-20 substances was covered by 2,000-10,000 articles during the decade. The numbers for the 10-year period were similar to the total numbers of pre-2000 articles on the same chemicals. However, substances considered a high priority from a regulatory viewpoint, due to lack of documentation, showed very low publication rates. The persistence in the scientific literature of the top-20 chemicals was only weakly related to their publication in journals with a high impact factor, but some substances achieved high citation rates. Conclusions The persistence of some environmental chemicals in the scientific literature may be due to a 'Matthew' principle of maintaining prominence for the very reason of having been well researched. Such bias detracts from the societal needs for documentation on less well known environmental hazards, and it may also impact negatively on the potentials for innovation and discovery in research.

  3. Matthew and marginality

    Directory of Open Access Journals (Sweden)

    Denis C. Duling

    1995-12-01

    Full Text Available This article explores marginality theory as it was first proposed in  the social sciences, that is related to persons caught between two competing cultures (Park; Stonequist, and, then, as it was developed in sociology as related to the poor (Germani and in anthropology as it was related to involuntary marginality and voluntary marginality (Victor Turner. It then examines a (normative scheme' in antiquity that creates involuntary marginality at the macrosocial level, namely, Lenski's social stratification model in an agrarian society, and indicates how Matthean language might fit with a sample inventory  of socioreligious roles. Next, it examines some (normative schemes' in  antiquity for voluntary margi-nality at the microsocial level, namely, groups, and examines how the Matthean gospel would fit based on indications of factions and leaders. The article ,shows that the author of the Gospel of Matthew has an ideology of (voluntary marginality', but his gospel includes some hope for (involuntary  marginals' in  the  real world, though it is somewhat tempered. It also suggests that the writer of the Gospel is a (marginal man', especially in the sense defined by the early theorists (Park; Stone-quist.

  4. Matthews and Yates Ltd

    International Nuclear Information System (INIS)

    McFarland, J.

    1986-01-01

    The paper concerns the work of the engineering company Matthews and Yates Ltd for the nuclear industry. The company produces centrifugal and axial flow fans, and air handling units for nuclear power stations. Quality assurance, performance testing and seismic testing of the products, are all briefly discussed. (U.K.)

  5. Matthew Arnold and Minimal Competency Testing.

    Science.gov (United States)

    Tuman, Myron C.

    1979-01-01

    Presents arguments by Robert Lowe and Matthew Arnold on the 19th century British "Payment by Results" Plan, whereby schools received funds for students who passed minimal competency tests. Emphasizes that the Victorian experience produced acrimonious teachers with low morale and encourages contemporary minimal testing advocates not to…

  6. Matthew Fuller / Matthew Fuller ; interv. Tilman Baumgärtel

    Index Scriptorium Estoniae

    Fuller, Matthew

    2006-01-01

    Osnabrückis tehtud intervjuu inglise kunstniku Matthew Fulleriga, kes koos Simon Pope'i ja Colin Greeniga asutasid 1994. a. Londonis kunstnikegrupi I/O/D. I/O/D-i Interneti-sirvijast Webstalker (1997)

  7. Lindstrom Receives 2013 Ocean Sciences Award: Citation

    Science.gov (United States)

    Gordon, Arnold L.; Lagerloef, Gary S. E.

    2014-09-01

    Eric J. Lindstrom's record over the last 3 decades exemplifies both leadership and service to the ocean science community. Advancement of ocean science not only depends on innovative research but is enabled by support of government agencies. As NASA program scientist for physical oceanography for the last 15 years, Eric combined his proven scientific knowledge and skilled leadership abilities with understanding the inner workings of our government bureaucracy, for the betterment of all. He is a four-time NASA headquarters medalist for his achievements in developing a unified physical oceanography program that is well integrated with those of other federal agencies.

  8. Solomon M. Hsiang Receives 2013 Science for Solutions Award: Response

    Science.gov (United States)

    Hsiang, Solomon M.

    2014-01-01

    I am honored to receive this award, created by Peter Schlosser, nominated by my postdoc advisor Michael Oppenheimer, and alongside my thesis advisor Mark Cane, recipient of this year's Maurice Ewing Medal—all role models and original pioneers in "the application and use of Earth and space sciences to solve societal problems."

  9. Language, meaning, sense and reference: Matthew's passion ...

    African Journals Online (AJOL)

    Language, meaning, sense and reference: Matthew's passion narrative and Psalm 22. The passion narrative of Jesus as told by Matthew is a verbal enunciation which finds its place next to other passion narratives in which the narrator lets the protagonist use the words of the '1' person of Psalm 22 and in which the narrator ...

  10. Riccardo Giacconi to Receive National Medal of Science

    Science.gov (United States)

    2005-02-01

    Riccardo Giacconi, very recently retired President of Associated Universities, Inc. (AUI), will be awarded the National Medal of Science by President George W. Bush on March 14, according to the White House. Giacconi, who received the Nobel Prize in Physics in 2002, will be honored for his pioneering research in X-ray astronomy and for his visionary leadership of major astronomy facilities. Established by Congress in 1959, the National Medal of Science is the Nation's highest honor for American scientists and is awarded annually by the President of the United States to individuals "deserving of special recognition for their outstanding contributions to knowledge." "We are extremely proud that Riccardo Giacconi has been selected to receive the nation's highest award for scientific achievement," said current AUI President Ethan J. Schreier, a long-term colleague of Dr. Giacconi. "It is another fitting recognition for an outstanding scientific career that has enhanced our basic understanding of the universe," Schreier added. Giacconi, known as the father of X-ray astronomy, used X-ray detectors launched on rockets to discover the first cosmic X-ray source in 1962. Because X-ray radiation is absorbed in Earth's atmosphere, space-based instruments are necessary to study it. Giacconi outlined a methodical program to investigate this new X-ray universe and, working with his research group at American Science and Engineering, Inc. in Cambridge, Massachusetts, developed the first space satellite dedicated to the new field of X-ray astronomy. Named Uhuru, this X-ray satellite observatory was launched in 1970 and subsequently discovered hundreds of X-ray sources. The ground-breaking work of Giacconi and his group led to the discovery of black holes, which to that point had been hypothesized but never seen. Giacconi was also the first to prove that the universe contains background radiation of X-ray light. Riccardo Giacconi has played a key role in many other landmark

  11. TRAO Multibeam Receiver System and Key Science Programs

    Science.gov (United States)

    Lee, Youngung

    2017-06-01

    Taeduk Radio Astronomy Observatory (TRAO) is now equipped with a main controling computer with VxWorks operating system, a new receiver system, and a new backend system. The new receiver system(TRAO-SEQUOIA) is equipped with high-performing 16-pixel MMIC pre-amplifiers in a 4x4 array, operating within 85~115 GHz frequency range. The system temperature ranges from 150 K (86~110 GHz) to 450 K (115 GHz). The 2nd IF modules with the narrow band and the 8 channels with 4 FFT spectrometers allow to observe 2 frequencies simultaneously within the 85~100 or 100~115 GHz bands for all 16 pixels of the receiver. Radome replacement was completed successfully as of February 2017. In addition, a new servo system will be installed in 2017 summer. We provide OTF (On-The-Fly) as a main observing mode, and position switching mode is available as well. The backend system (FFT spectrometer) provides the 4096x2 channels with fine velocity resolution of about 0.05 km/sec (15 kHz) per channel, and their full spectra bandwidth is 60 MHz. Beam efficiency of the TRAO was measured to be about 46% - 54% (with less than 2% error) between 86 and 115 GHz bands and pointing errors of the 14m telescope were found be 4.4 arcsec in AZ direction and 6 arcsec in EL direction. Generally, we allocate 18 hours of telescope time a day from January to the middle of May, and from October to December. Three Key Science Programs had been selected in 2015 fall and they are supposed to have higher priority for telescope time.

  12. The Gospel of Matthew: Reconfigured Torah

    Directory of Open Access Journals (Sweden)

    Richard B. Hays

    2005-10-01

    Full Text Available This essay surveys the evangelist Matthew’s reading of Israel’s Scripture. Rather than focusing only on Matthew’s distinctive formula quotations, we must observe the subtler ways that Matthew evokes scriptural images and patterns. The essay highlights four major aspects of Matthew’s reading of Scripture. (1 Matthew reads Israel’s Scripture as a story that highlights election, kingship, exile, and messianic salvation as the end of exile. (2 Matthew reconfigures Torah into a call for radical transformation of the heart. (3 Matthew highlights Scripture’s call for mercy, particularly by emphasizing Hosea 6:6 as the hermeneutical key to Torah. (4 Matthew interprets the mission to the Gentiles as the fulfilment of Israel’s destiny and the active embodiment of the authority of the Son of Man (Dn 7:13-14 over the whole world. Jointly taken, these strategies of interpretation produce a striking reconfiguration of Israel’s Torah.

  13. Solomon M. Hsiang Receives 2013 Science for Solutions Award: Citation

    Science.gov (United States)

    Oppenheimer, Michael

    2014-01-01

    Solomon Hsiang is representative of a new generation in the geosciences community, whose work spans several disciplines, drawing on methods and concepts from far outside the traditional physical science domain in order to make progress on difficult questions at the intersection of natural science, social science, and public policy. Broadly speaking, by examining how humanity has responded to climate variability and change in the distant and recent past, Sol's research elucidates the question of how humanity may respond to a changing climate in the future. Combining large, independent sets of social science, meteorological, and climatological data and analyzing them with tools more common in microeconomics than natural science, Sol, still at an early stage of his career, has made critical contributions to an incipient revolution in our understanding of the sensitivity and adaptability of humans and their social arrangements to climate variability and change. Such insights will greatly improve the information base from which effective public policy is developed.

  14. Regeneration and resurrection in Matthew – Peasants in campo ...

    African Journals Online (AJOL)

    2010-12-10

    Dec 10, 2010 ... University of Pretoria, South ... These concepts lead to Matthew's reading3: 1. .... The idea of the kingdom of God can be viewed as an apocalyptic alternative to ... Matthew completes a circular movement when his 'genesis'.

  15. The kingdom of heaven and Matthew 10

    Directory of Open Access Journals (Sweden)

    Jacob J. Scholtz

    2014-08-01

    Full Text Available This article proposes that the mission discourse in Matthew 10 is a single mission assignment that covers two distinct time periods when the gospel of the kingdom is preached. This assignment commenced during Christ’s first advent when the 12 apostles preached the gospel of the kingdom only in Israel. However, as a result of ‘this generation’ committing the unpardonable sin, this assignment became postponed until it will be resumed in the Tribulation when the coming King will authorise Jewish messengers to preach the gospel of the kingdom again – this time as a witness to all the nations. Based on this view of the mission discourse in Matthew 10, this article proposes a chiastic structure for Matthew 9:36−11:1a. Each section of this text will then be briefly discussed. Although the Church can make applications from this discourse, it is argued that Matthew 10:5b−42 does not refer to the Church age.

  16. Fighting, Anger, Frustration and Tears: Matthew's Story of Hegemonic Masculinity

    Science.gov (United States)

    Keddie, Amanda

    2006-01-01

    This paper draws on Matthew's story to illustrate the conflicting discourses of being a boy and being a student. Matthew is 12 years old and in Grade Six, his final year at Banrock Primary (a K-6 Australian State School). School is far from a happy place for Matthew--his tearful accounts of his combative relationships with his peers and his…

  17. Resonance – Journal of Science Education | Indian Academy of ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 18; Issue 1. Discrete Event Simulation. Matthew Jacob ... Keywords. Simulation; modelling; computer programming. Author Affiliations. Matthew Jacob1. Department of Computer Science and Automation, Indian Institute of Science, Bangalore 560 012.

  18. Verification of ICESat-2/ATLAS Science Receiver Algorithm Onboard Databases

    Science.gov (United States)

    Carabajal, C. C.; Saba, J. L.; Leigh, H. W.; Magruder, L. A.; Urban, T. J.; Mcgarry, J.; Schutz, B. E.

    2013-12-01

    NASA's ICESat-2 mission will fly the Advanced Topographic Laser Altimetry System (ATLAS) instrument on a 3-year mission scheduled to launch in 2016. ATLAS is a single-photon detection system transmitting at 532nm with a laser repetition rate of 10 kHz, and a 6 spot pattern on the Earth's surface. A set of onboard Receiver Algorithms will perform signal processing to reduce the data rate and data volume to acceptable levels. These Algorithms distinguish surface echoes from the background noise, limit the daily data volume, and allow the instrument to telemeter only a small vertical region about the signal. For this purpose, three onboard databases are used: a Surface Reference Map (SRM), a Digital Elevation Model (DEM), and a Digital Relief Maps (DRMs). The DEM provides minimum and maximum heights that limit the signal search region of the onboard algorithms, including a margin for errors in the source databases, and onboard geolocation. Since the surface echoes will be correlated while noise will be randomly distributed, the signal location is found by histogramming the received event times and identifying the histogram bins with statistically significant counts. Once the signal location has been established, the onboard Digital Relief Maps (DRMs) will be used to determine the vertical width of the telemetry band about the signal. University of Texas-Center for Space Research (UT-CSR) is developing the ICESat-2 onboard databases, which are currently being tested using preliminary versions and equivalent representations of elevation ranges and relief more recently developed at Goddard Space Flight Center (GSFC). Global and regional elevation models have been assessed in terms of their accuracy using ICESat geodetic control, and have been used to develop equivalent representations of the onboard databases for testing against the UT-CSR databases, with special emphasis on the ice sheet regions. A series of verification checks have been implemented, including

  19. The kingdom of heaven and Matthew 10

    Directory of Open Access Journals (Sweden)

    Jacob J. Scholtz

    2014-08-01

    Full Text Available This article proposes that the mission discourse in Matthew 10 is a single mission assignment that covers two distinct time periods when the gospel of the kingdom is preached. This assignment commenced during Christ’s first advent when the 12 apostles preached the gospel of the kingdom only in Israel. However, as a result of ‘this generation’ committing the unpardonable sin, this assignment became postponed until it will be resumed in the Tribulation when the coming King will authorise Jewish messengers to preach the gospel of the kingdom again – this time as a witness to all the nations. Based on this view of the mission discourse in Matthew 10, this article proposes a chiastic structure for Matthew 9:36−11:1a. Each section of this text will then be briefly discussed. Although the Church can make applications from this discourse, it is argued that Matthew 10:5b−42 does not refer to the Church age. Die koninkryk van die hemele en Matteus 10. Hierdie artikel bespreek die sendingdiskoers in Matteus 10 en beweer dat dit ’n enkele sendingopdrag is wat twee diskrete tydperiodes dek wanneer die evangelie van die koninkryk verkondig is. Hierdie sendingopdrag is tydens Christus se eerste koms aan die 12 apostels gegee om die evangelie van die koninkryk net in Israel te verkondig. Omdat ‘hierdie geslag’ die onvergeeflike sonde gedoen het, is hierdie sendingopdrag uitgestel en sal hervat word tydens die Verdrukking wanneer die komende Koning Joodse boodskappers sal magtig om weer die evangelie van die koninkryk te verkondig – hierdie keer tot getuienis vir al die nasies. Hierdie artikel stel ’n chiastiese struktuur vir Matteus 9:36−11:1a voor wat gebaseer is op hierdie siening van die sendingdiskoers in Matteus 10. Daarna word elke afdeling van die teks kortliks bespreek. Alhoewel die Kerk toepassings uit hierdie diskoers kan maak, word geargumenteer dat Matteus 10:5b−42 nie na die Kerk-era verwys nie.

  20. Hayes Receives 2012 Ronald Greeley Early Career Award in Planetary Science: Citation

    Science.gov (United States)

    Leshin, Laurie A.

    2013-10-01

    Alexander G. Hayes Jr. received the 2012 Ronald Greeley Early Career Award in Planetary Science at the 2012 AGU Fall Meeting, held 3-7 December in San Francisco, Calif. The award recognizes significant early-career contributions to planetary science.

  1. The influence of Greek drama on Matthew's Gospel

    African Journals Online (AJOL)

    2014-05-20

    May 20, 2014 ... This article presents the Greek influence on the genre of Matthew's text. Greek and Roman .... Matthew's Gospel, it is necessary to examine the basic make- up of Greek .... purpose of the chorus was to depict the reaction of the people in the audience. ..... in Knowing Jesus and his friends better, viewed 18 ...

  2. Regeneration and resurrection in Matthew – Peasants in campo ...

    African Journals Online (AJOL)

    The article aimed to describe the distinctive element in the use of the motif of the resurrection in the Gospel of Matthew in comparison with Mark, Luke and the Sayings Gospel Q. It argued that the distinctive element occurs where parallel texts in Luke 22:24–30, Matthew 19:27–29 and Mark 10:28–31 converge.

  3. The Gospel of Matthew and women

    Directory of Open Access Journals (Sweden)

    P.J.J. Botha

    2003-08-01

    Full Text Available Matthew obviously reveals no concern with gender roles and issues about female leadership. This Gospel simply perceives such issues from the perspective of conventional patriarchal terms within the Roman household ideology, at best believing “collegiality” to be proper for his community. In order to avoid biblicistic and/or fundamentalistic theological reflection these issues should be acknowledged in our “wrestling” with Scripture. At the same time Matthew’s vision of God and the abundant righteousness demanded allow us to go beyond Matthew’s treatment of women and radicalise not only the implicit call to equity in our tradition but even our own context’s emphasis on equality.

  4. What light does Matthew's use of Mark in Matthew 1–4 throw on ...

    African Journals Online (AJOL)

    2016-06-30

    Jun 30, 2016 ... use of Mark in these chapters is confined largely to Matthew 3–4, this article will ... that to add material is also a way of responding to Mark, so will give just as much attention to .... judgement (13:41–43; 25:31) with parallels in the Parables of ... Christology which would have gone far too far for most Jews.

  5. Evocative allusions in Matthew: Matthew 5:5 as a test case

    Directory of Open Access Journals (Sweden)

    Robert L. Brawley

    2003-10-01

    Full Text Available Combining theories of intertextuality and abductive reasoning, this article demonstrates the figurative nature of scriptural allusions in Matthew. Allusions form figurations that open new perspectives for readers inasmuch as the source text and the new text stand in a tensive relationship in which each modifies the other and in which together they evoke meaning beyond the mere sum of the two independent texts. Allusions also form figurations inasmuch as arguments that are analogous to logic. Surprising, original, uncanny correlations between the source text and the new text involve what Charles Peirce called abductive reasoning which also challenges constructs of reality. This article interprets Matthew 5:5 as an allusion to the Abrahamic promise of the inheritance of the land and the blessing of all the families of the earth mediated through Psalm 36 (LXX and describes the figurative nature of the allusion using Harold Bloom’s revisionary ratios. Another version of the article will also be published in Kim, P & Ringe, S (eds, Literary encounters with the reign of God: Essays in honor of Robert C Tannehill, Harrisburg, PA: Trinity Press International (Forthcoming.

  6. Books Received

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. Books Received. Articles in Resonance – Journal of Science Education. Volume 1 Issue 1 January 1996 pp 118-118 Books Received. Books Received · More Details Fulltext PDF. Volume 1 Issue 2 February 1996 pp 120-120 Books Received. Books Received.

  7. Stephen Hall Receives 2012 Walter Sullivan Award for Excellence in Science Journalism-Features: Citation

    Science.gov (United States)

    Pearson, Helen

    2013-01-01

    Stephen Hall, a freelance science writer and science-communication teacher, received the Walter Sullivan Award for Excellence in Science Journalism-Features at the AGU Fall Meeting Honors Ceremony, held on 5 December 2012 in San Francisco, Calif. Hall was honored for the article "At Fault?" published 15 September 2011 in Nature. The article examines the legal, personal, and political repercussions from a 2009 earthquake in L'Aquila, Italy for seismologists who had attempted to convey seismic risk assessments to the public. The 6.3 magnitude quake devastated the medieval town and caused more than 300 deaths. Six scientists and one government official were subsequently convicted of manslaughter and sentenced to prison for inadequately assessing and mischaracterizing the risks to city residents, despite the inexact nature of seismic risk assessment. The Sullivan award is for work published with a deadline pressure of more than 1 week.

  8. Mitchell Receives 2013 Ronald Greeley Early Career Award in Planetary Science: Citation

    Science.gov (United States)

    McKinnon, William B.

    2014-07-01

    The Greeley Early Career Award is named for pioneering planetary scientist Ronald Greeley. Ron was involved in nearly every major planetary mission from the 1970s until his death and was extraordinarily active in service to the planetary science community. Ron's greatest legacies, however, are those he mentored through the decades, and it is young scientists whose work and promise we seek to recognize. This year's Greeley award winner is Jonathan L. Mitchell, an assistant professor at the University of California, Los Angeles (UCLA). Jonathan received his Ph.D. from the University of Chicago, and after a postdoc at the Institute for Advanced Studies in Princeton, he joined the UCLA faculty, where he holds a joint appointment in Earth and space sciences and in atmospheric sciences.

  9. Review article: The mountain motif in the plot of Matthew

    Directory of Open Access Journals (Sweden)

    Gert J. Volschenk

    2010-09-01

    Full Text Available This article reviewed T.L. Donaldson’s book, Jesus on the mountain: A study in Matthean theology, published in 1985 by JSOT Press, Sheffield, and focused on the mountain motif in the structure and plot of the Gospel of Matthew, in addition to the work of Donaldson on the mountain motif as a literary motif and as theological symbol. The mountain is a primary theological setting for Jesus’ ministry and thus is an important setting, serving as one of the literary devices by which Matthew structured and progressed his narrative. The Zion theological and eschatological significance and Second Temple Judaism serve as the historical and theological background for the mountain motif. The last mountain setting (Mt 28:16–20 is the culmination of the three theological themes in the plot of Matthew, namely Christology, ecclesiology and salvation history.

  10. Assessing the Process of Receiving Students’ Meals in Tabriz University of Medical Sciences in 2012

    Directory of Open Access Journals (Sweden)

    Farahnaz Varmazyar

    2015-08-01

    Full Text Available ​ Background and Objectives : The process of receiving meal is one of the most important daily events of university students and managers. Since this process happens within a limited time during the day, and all the students are directly involved in this process, proper management is one  of the main factors of conducting this process appropriately. The aim of this study was to evaluate the process of receiving meals step by step and analyzing how this process takes place and finally offer some strategies for promoting the quality of conducting this process at Tabriz University of Medical Sciences. Material and Methods : The is a cross-sectional study which was conducted by observation, interview and the questionnaires filled out by students and automation section staff. The flowchart for the process of receiving meals of the university was drawn after step by step observation. The questionnaire including 14 questions were answered by 60 students randomly. A suggested flowchart was adjusted after general and specialized analysis of the flowchart in 5W1H method. For analyzing data, Excel 2007 software was applied. Results : Data analysis indicated that 55% of the students believed that too much time was wasted in this process. Currently, each student spends about 43 minutes for having lunch everyday. Although the university has facilitated food reservation by internet, 80% of students do not use this service and refer to self-service restaurant operators and cause long queues . After interviewing with the manager of food section, it was specified that an average amount of Rls. 300,000,000/- is allocated daily for students’ food by students’ deputy which is Rls. 100,000/- for each student and each student pays only 6.5% of the whole price and 93.5% of the price is supplied by students’ welfare affairs deputy. Conclusion: The process of receiving meals of students at Tabriz University of Medical Sciences is a time-consuming process and

  11. a perspective from matthew 25:31-46

    African Journals Online (AJOL)

    when dealing with the latter situation, as is so masterly done in the book by. Moberly ..... out (Mt 20:15), not the strict economic law of wages being paid according ..... Ethical responsibility and human wholeness in Matthew 25:31-46. Harvard.

  12. The influence of Greek drama on Matthew's Gospel | Warner | HTS ...

    African Journals Online (AJOL)

    This article presents the Greek influence on the genre of Matthew's text. Greek and Roman tragedy is examined, from which the five basic elements of tragedy are identified. A brief examination of the characters in the Matthean text is done to identify Greek cultural influences on the structuring of the Gospel. This study offers ...

  13. MEEK OR OPPRESSED? READING MATTHEW 5:5 IN CONTEXT

    African Journals Online (AJOL)

    According to the Gospel of Matthew 5:5, Jesus pronounces a blessing on “the meek” ...... of one's land to the poor (J.T. Pe'ah, I, 15 b, 39). .... including the Sermon on the Plain (Matt 5:3-7:27 and Luke 6:20-49). ... New York: Harper Collins.

  14. Interpreting the visio Dei in Matthew 5:8

    African Journals Online (AJOL)

    2012-01-16

    Jan 16, 2012 ... With these scholarly meticulous methods, on the one hand, and less ...... Gundry, R.H., 1994, Matthew: A Commentary on his handbook for a mixed church ... Lane, T., 2007, A concise history of Chrisfian thought, T&T Clark, ...

  15. HOSEA 6:6 AND IDENTITY FORMATION IN MATTHEW

    African Journals Online (AJOL)

    that the verse is of particular importance to the first evangelist. Secondly, in .... contributed significantly to the understanding of Matthew's text. The LXX .... abolish the temple, but to reform it by stressing inner purity and not mere ritual purity ... prostitutes are entering the kingdom of God ahead of you”) probably relates to the ...

  16. Power and authority in Matthew's gospel | Viljoen | Acta Theologica

    African Journals Online (AJOL)

    Besides the strenuous relation of Matthew's community with non-Christian kinfolk, his text also reveals an underlying conflict with Roman Imperial ideology. Herod, Antipas and Pilate specifically impersonate this foreign domination. Apparently these figures have unlimited power which leaves Jesus and his followers as ...

  17. Jesus' affection towards children and Matthew's tale of two kings ...

    African Journals Online (AJOL)

    ... of Jesus' public ministry within the context of Jesus' relationship to children. Jesus' baptism by John (Mt 3:15) and Jesus' entry into Jerusalem (Mt 21:1-17) form the two poles of his ministry in Matthew. Both episodes are described as a kind of “cleansing of the temple”. Both incidents were (in a midrash fashion) understood ...

  18. MATTHEW'S SITZ IM LEBEN AND THE EMPHASIS ON THE TORAH

    African Journals Online (AJOL)

    Acta Theologica ... such as would be expected from letters (Bauckham 1998:48). Yet the ... it in other words; the Sitz im Leben der alten Kirche can indirectly be .... 4 Along with most scholars I assume that Matthew was written some time after.

  19. Handman and Senson Receive 2003 Walter Sullivan Award for Excellence in Science Journalism-Features

    Science.gov (United States)

    McDonald, Bob; Handman, Jim; Senson, Pat

    2004-03-01

    Patric Senson and James Handman received the Sullivan Award at AGU Fall Meeting Honors Ceremony, which was held on 10 December 2003, in San Francisco, California. The award honors ``a single article or radio/television report that makes geophysical material accessible and interesting to the general public.'' ``Jim Handman is one of the best kept secrets at CBC Radio. For more than 20 years he has been a bastion of integrity and an endless source of wit and has consistently produced award-winning programs in radio news and current affairs. ``Jim is currently the senior producer of Quirks & Quarks, our national science radio program, now in its 27th season, but this role is only one of many over the course of his extensive broadcasting career.

  20. Mitchell Receives 2013 Ronald Greeley Early Career Award in Planetary Science: Response

    Science.gov (United States)

    Mitchell, Jonathan L.

    2014-07-01

    I am honored to receive this award in memory of Ron Greeley. Although I did not have the opportunity to know him, I had the pleasure of getting to know his wife, Cynthia, at a luncheon prior to the special awards session at the AGU Fall Meeting. Cynthia is an intelligent and elegant southern woman with a confident gaze. She spoke fondly of Ron and of her sincere respect for his work ethic and dedication to planetary science. What most impressed me, though, was the respect Ron showed to her and the kids by always "giving them the evenings"; no matter how busy things got, Ron always kept his evenings open for Cynthia. This clearly meant the world to her. As a family man, I can only hope that my wife and kids will speak so kindly of me many years from now. I would like to dedicate this award to them in gratitude for their seemingly unconditional love and support.

  1. Synoptic, redactional, stylistic and narratological observations on the retelling of Mark 7:30 in Matthew 15:28

    Directory of Open Access Journals (Sweden)

    Peter-Ben A. Smit

    2014-10-01

    Full Text Available The Matthean redaction of Mark 7:30 in Matthew 15:28 often receives scant attention in scholarship in terms of its narrative quality. At most, it is regarded as a truncation of the full Marcan version, while all attention is given to Matthew’s introduction of the notion of ‘faith’ in this verse. This article argues, by contrast, and on the basis of a synoptic comparison and narratological analysis of both texts, that more justice is done to both versions of the conclusion of this healing miracle when understanding them as achieving different narrative effects, with Matthew focusing on the immediacy of the healing, while Mark creates suspense, thus focusing on the veracity of Jesus’ statement that the girl in question is healed.

  2. LDRD Final Report 15-ERD-037 Matthews

    Energy Technology Data Exchange (ETDEWEB)

    Matthews, Manyalibo J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-10-26

    The physics and materials science involved in laser materials processing of metals was studied experimentally using custom-built test beds and in situ diagnostics. Special attention was given to laser-based powder bed fusion additive manufacturing processes, a technology critically important to the stockpile stewardship program in NNSA. New light has been shed on several phenomena such as laser-driven spatter, material displacement and morphology changes. The results presented here and in publications generated by this work have proven impactful and useful to both internal and external communities. New directions in additive manufacturing research at LLNL have been enabled, along with new scientific capabilities that can serve future program needs.

  3. A hermeneutic of justice. Justice as discernment in Matthew ...

    African Journals Online (AJOL)

    In some important dictionaries for the study of the New Testament, δικαιοσύνη has two meanings: justice in the sense of distributive justice and righteousness as a relational notion. In Matthew, we discover that the word concerns a threefold loyalty: loyalty to the law, loyalty to fellow people, and loyalty to the will of God. In the ...

  4. Examination of the Life Satisfactions Levels of Students Receiving Education in Sports Sciences

    Directory of Open Access Journals (Sweden)

    Abdullah Bora ÖZKARA

    2015-07-01

    Full Text Available The aim of this study is to examine of life satisfaction levels of students receiving education in sports science according to some variabl es. To this aim, individual info form and Turkish form of life satisfaction questionnaire , developed by Diener, Emmos, Larsen and Griffin (1985 and adapted to Turkish by Kokler (1991 4, were administered ,as a online, to 25 4 students from Ağrı İbrahim Çeçen University, Afyon Kocatepe University, Dumlupınar University and Karadeniz Technical University with voluntary participation. Depending on the data on gender, smoking, universities,alchool using and family income were app lied Kolmogorov - Smirnov normality test. The tests results indicated that the data are not normally distributed. Depending on the data; for gender, smoking, alchool using Mann - Whitney U test, for universities and family income Kruskal - Wallis tests were use d at the level of α=0.05 significance.The result showed that there was no significant differences on genders ((Z 0.05 ; - 1,616; P>0.05, smoking (Z 0.05 ; - 1,556; P>0.05 and universities (X 2 (3; 0,.370; P>0.05 according to life satisfaction levels. On the o ther hand; alchool using (Z 0.05 ; - 2,008; P<0.05 and family income (X 2 (3; 10,257; P<0.05 scores were found significant depending on life satisfaction levels .

  5. ESO Receives Computerworld Honors Program 21st Century Achievement Award in Science Category

    Science.gov (United States)

    2005-06-01

    In a ceremony held in Washington, D.C. (USA) on June 6, 2005, ESO, the European Organisation for Astronomical Research in the southern Hemisphere, received the coveted 21st Century Achievement Award from the Computerworld Honors Program for its visionary use of information technology in the Science category. Sybase, a main database server vendor and member of the Chairmen's Committee, nominated ESO's Data Flow System in recognition of its contributions to the global information technology revolution and its positive impact on society. The citations reads: "ESO has revolutionized the operations of ground-based astronomical observatories with a new end-to-end data flow system, designed to improve the transmission and management of astronomical observations and data over transcontinental distances." This year's awards, in 10 categories, were presented at a gala event at the National Building Museum, attended by over 250 guests, including leaders of the information technology industry, former award recipients, judges, scholars, and diplomats representing many of the 54 countries from which the 17-year-old program's laureates have come. "The Computerworld Honors Program 21st Century Achievement Awards are presented to companies from around the world whose visionary use of information technology promotes positive social, economic and educational change," said Bob Carrigan, president and CEO of Computerworld and chairman of the Chairmen's Committee of the Computerworld Honors Program. "The recipients of these awards are the true heroes of the information age and have been appropriately recognized by the leading IT industry chairmen as true revolutionaries in their fields." ESO PR Photo 18/05 ESO PR Photo 18/05 ESO Receives the Award in the Science Category [Preview - JPEG: 400 x 496 pix - 53k] [Normal - JPEG: 800 x 992 pix - 470k] [Full Res - JPEG: 1250 x 1550 pix - 1.1M] Caption: ESO PR Photo 18/05: Receiving the Computerworld 21st Century Achievement Award for Science

  6. The renouncement of possessions according to Matthew 19:16–30

    African Journals Online (AJOL)

    2015-07-13

    Jul 13, 2015 ... of Jesus who adhered to a stricter ethic and those who did not (i.e. between religious virtuosi ... Jesus and the rich young man in Matthew 19:16–30 as the clearest example of a ..... in Matthew 19:16–29, a case can be made that most of the .... While Matthew often refers to the theme of reward for virtuous.

  7. The love for the poor neighbour: in memory of her (Matthew 26:6-13 ...

    African Journals Online (AJOL)

    This article explores whether the Jesus saying in Matthew 26:11 contradicts the Jesus tradition about caring for the poor. Bultmann's understanding of the love commandment provides a key to understanding this perceived paradox. On the one hand, in Matthew 19:21, Jesus says that to love one's neighbour as required by ...

  8. The Key for The gosPeL According To mATTheW

    African Journals Online (AJOL)

    K. Lee & F.P. Viljoen. The uLTimATe commission: The Key for The gosPeL. According To mATTheW. ABsTrAcT it is frequently acknowledged that the ultimate commission is important for understand ing the whole gospel of matthew. in this article, we investigate how several themes incorporated in the ultimate commission ...

  9. Matthew Crabbe, Myth-Busting China's Numbers: Understandig and Using China's Statistics

    DEFF Research Database (Denmark)

    Grünberg, Nis

    2014-01-01

    Book review of: Matthew Crabbe: Myth-Busting China's Numbers: Understandig and Using China's Statistics. Houndmills, Basingstoke: Palgrave Macmillan, 2014. 268 pp.......Book review of: Matthew Crabbe: Myth-Busting China's Numbers: Understandig and Using China's Statistics. Houndmills, Basingstoke: Palgrave Macmillan, 2014. 268 pp....

  10. The friendship of Matthew and Paul: A response to a recent trend in ...

    African Journals Online (AJOL)

    David Sim has argued that Matthew's so-called Great Commission (Mt 28:16–20) represents a direct anti-Pauline polemic. While this thesis may be theoretically possible and perhaps fits within the perspective of an earlier era in New Testament research, namely that of the Tübingen School, the evidence in both Matthew ...

  11. An Awkward Echo: Matthew Arnold and John Dewey. Research in Curriculum and Instruction

    Science.gov (United States)

    Dietz, Mark David

    2010-01-01

    Matthew Arnold, 19th century English poet, literary critic and school inspector, felt that each age had to determine that philosophy that was most adequate to its own concerns and contexts. This study looks at the influence that Matthew Arnold had on John Dewey and attempts to fashion a philosophy of education that is adequate for our own…

  12. Matthew's Messianic Shepherd-king: In search of “the lost sheep of ...

    African Journals Online (AJOL)

    p1243322

    in regard to the intricate symmetry of Matthew's Gospel (cf Davies and Allison 1988:58-72). Matthew's division of the Gospel .... 12 Luz (2005:21; cf also Davies and Allison 1988:385; and most recently Nolland 2005:172-. 74) would be characteristic of the ..... Early Christian literature, tr by R W Funk. Chicago, IL: University of ...

  13. The Gospel of Matthew, John the elder and the Papias tradition: A ...

    African Journals Online (AJOL)

    p1243322

    this effect was made by Irenaeus around the year 180, who said that Matthew ... 2005:50). The first of these is to establish the early date of Papias' writings, ..... was passing on a tradition that Matthew wrote his Gospel in a Hebrew style; in short ...

  14. Hayes Receives 2012 Ronald Greeley Early Career Award in Planetary Science: Response

    Science.gov (United States)

    Hayes, Alexander G.

    2013-10-01

    I am deeply honored to be the inaugural recipient of the Ronald Greeley Early Career Award. Ron was an icon in the field of planetary science, and the establishment of this award is a fitting way to pay tribute to his legacy. I applaud Laurie Leshin, Bill McKinnon, and the rest of the AGU Planetary Science section officers and selection committee for taking the time to organize this memorial. Ron is remembered not only for his fundamental scientific contributions but also for his mentorship and support of early-career scientists, both his own students and postdocs and those of his colleagues.

  15. Resonance – Journal of Science Education | Indian Academy of ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. Matthew Jacob. Articles written in Resonance – Journal of Science Education. Volume 18 Issue 1 January 2013 pp 78-86 Classroom. Discrete Event Simulation · Matthew Jacob · More Details Fulltext PDF ...

  16. Paul Voosen Receives 2013 David Perlman Award for Excellence in Science Journalism—News: Citation

    Science.gov (United States)

    Zaneski, Cyril T.

    2014-01-01

    It's my pleasure to nominate Paul Voosen, the former science reporter for Greenwire, for the David Perlman award. Last November, as Superstorm Sandy pounded the East Coast of the United States, Paul found himself stranded for several days in Miami, mourning a recently deceased family member.

  17. How Accurate Is the Science News We Receive from the Mass Media?

    Science.gov (United States)

    Molitor, Fred

    One day before a health study appeared in the "New England Journal of Medicine (NEJM)" the study was reported media. A content analysis of the top 5 national newspapers examined the accuracy of this news reporting. The NEJM study found that men who took aspirin had 50% fewer heart attacks than men who received a placebo. Analysis of the…

  18. Assessment of Risk of Cholera in Haiti following Hurricane Matthew.

    Science.gov (United States)

    Khan, Rakib; Anwar, Rifat; Akanda, Shafqat; McDonald, Michael D; Huq, Anwar; Jutla, Antarpreet; Colwell, Rita

    2017-09-01

    Damage to the inferior and fragile water and sanitation infrastructure of Haiti after Hurricane Matthew has created an urgent public health emergency in terms of likelihood of cholera occurring in the human population. Using satellite-derived data on precipitation, gridded air temperature, and hurricane path and with information on water and sanitation (WASH) infrastructure, we tracked changing environmental conditions conducive for growth of pathogenic vibrios. Based on these data, we predicted and validated the likelihood of cholera cases occurring past hurricane. The risk of cholera in the southwestern part of Haiti remained relatively high since November 2016 to the present. Findings of this study provide a contemporary process for monitoring ground conditions that can guide public health intervention to control cholera in human population by providing access to vaccines, safe WASH facilities. Assuming current social and behavioral patterns remain constant, it is recommended that WASH infrastructure should be improved and considered a priority especially before 2017 rainy season.

  19. Selling science 2.0: What scientific projects receive crowdfunding online?

    Science.gov (United States)

    Schäfer, Mike S; Metag, Julia; Feustle, Jessica; Herzog, Livia

    2016-09-19

    Crowdfunding has emerged as an additional source for financing research in recent years. The study at hand identifies and tests explanatory factors influencing the success of scientific crowdfunding projects by drawing on news value theory, the "reputation signaling" approach, and economic theories of online payment. A standardized content analysis of 371 projects on English- and German-language platforms reveals that each theory provides factors influencing crowdfunding success. It shows that projects presented on science-only crowdfunding platforms have a higher success rate. At the same time, projects are more likely to be successful if their presentation includes visualizations and humor, the lower their targeted funding is, the less personal data potential donors have to relinquish and the more interaction between researchers and donors is possible. This suggests that after donors decide to visit a scientific crowdfunding platform, factors unrelated to science matter more for subsequent funding decisions, raising questions about the potential and implications of crowdfunding science. © The Author(s) 2016.

  20. Social influence and the Matthew mechanism: The case of an artificial cultural market

    Science.gov (United States)

    Bask, Miia; Bask, Mikael

    2014-10-01

    We show that the Matthew effect, or Matthew mechanism, was present in the artificial cultural market Music Lab in one-fourth of the “worlds” when social influence between individuals was allowed, whereas this effect was not present in the “world” that disallowed social influence between individuals. We also sketch on a class of social network models, derived from social influence theory, that may generate the Matthew effect. Thus, we propose a theoretical framework that may explain why the most popular songs could be much more popular, and the least popular songs could be much less popular, than when disallowing social influence between individuals.

  1. External cultic tradition and internal ethical purity in Matthew 15

    Directory of Open Access Journals (Sweden)

    Francois P. Viljoen

    2014-11-01

    Full Text Available In Matthew 15:1–20, Jesus responds to the accusation made by the Pharisees and the scribes that his disciples do not observe the tradition of hand-washing (οὐ γὰρ νίπτονται τὰς χεῖραςὅταν ἄρτον ἐσθίωσιν, because they do not wash their hands before they eat bread. In this story of dispute, two ideas are interwoven, namely the locus of impurity (external or internal and the manmade tradition of the elders (ἡ παράδοσις τῶν πρεσβυτέρων versus the Word of God (ὁ λόγος τοῦ Θεοῦ. The Pharisees are depicted as obsessed with external manmade rules to ensure purity, whilst Jesus is concerned with inner purity based on God’s Word. In this article, the story is interpreted on two levels. The first level describes the dispute between Jesus and the Pharisees. The second level explores the tension the Matthean community experienced in their encounter with Pharisean Judaism of their day – the Judaism of the dual Torah. The question is which aspect of the Torah is challenged by Matthew’s Jesus, and what he considers to be the true meaning of the Law. It seems that Matthew uses this story to define and maintain the identity and values of his community over and against that of the Pharisees and their successors. Devices that Matthew uses to define the identity and required morality for his community, are identified. Such devices demonstrate how a community’s values can influence the identity and ethics of a society. In Matteus 15:1–20 reageer Jesus op die aantyging van die Fariseërs en skrifgeleerdes dat sy dissipels nie die handewas-tradisie eerbiedig nie. In hierdie verhaal van dispuut word twee idees vervleg: eerstens dié van die locus van onreinheid, en tweedens dié van mensgemaakte tradisies teenoor die Woord van God. Die Fariseërs word voorgestel as mense wat obsessiefis oor mensgemaakte reëls wat reinheid verseker, terwyl Jesus op innerlike reinheid

  2. Matthew, Paul and the origin and nature of the gentile mission: The ...

    African Journals Online (AJOL)

    p1243322

    previous restriction of the mission to Israel alone and demands that the disciples .... The relationship between Matthew and Paul has never been at the forefront of. Matthean studies. For the ..... eat the children's' crumbs”. London: T & T Clark.

  3. Regeneration and resurrection in Matthew – Peasants in campo hearing time signals from scribes

    Directory of Open Access Journals (Sweden)

    Andries G. van Aarde

    2011-10-01

    Full Text Available The article aimed to describe the distinctive element in the use of the motif of the resurrection in the Gospel of Matthew in comparison with Mark, Luke and the Sayings Gospel Q. It argued that the distinctive element occurs where parallel texts in Luke 22:24–30, Matthew 19:27–29 and Mark 10:28–31 converge. The distinctive element pertains particularly to the meaning of the Greek expression ‘en tē palingenesia’ in Matthew 19:28. By elaborating on time as a social construct, the article showed how Matthew deals with the conception of time differently than both Mark and Luke. It illustrated that the Gospel of Matthew represents a storyline consisting of a circular movement between ‘genesis’ (Mt 1:1 and ‘palingenesia’ (Mt 19:28, where the word ‘palingenesia’ denotes the meaning ‘regeneration’ rather than ‘resurrection’. Matthew does not narrate an abrupt transition from linear time to clock time. Both co-existed in a world where illiterate peasants and literate scribes scheduled their lives in terms of motifs pertaining to a linear and a punctual conception of time.

  4. Is Matthew 28:16–20 the summary of the Gospel?

    Directory of Open Access Journals (Sweden)

    David C. Sim

    2014-11-01

    Full Text Available It is generally acknowledged that the Great Commission at the end of Matthew’s Gospel is a dramatic and fitting end to the evangelist’s narrative. In the eyes of many scholars this final pericope does more than simply conclude the Gospel; it serves as a summary of the text’s major themes and even provides the interpretative key by which the earlier story should be read. This view, however, is questionable for two reasons. Firstly, the Great Commission introduces new themes and motifs into the Gospel story, which means that it cannot be viewed as a mere summary of what has come before. Secondly, this passage does not mention all the major themes of the Gospel. While some important motifs are included in the final pericope, there are others that receive no mention at all. This point too casts considerable doubt on the view that Matthew 28:16–20 serves to summarise Matthew’s story of Jesus. Moreover, the Great Commission, despite recalling a number of earlier themes, looks more towards the time of the future Church than back to the time of ‘the historical Jesus’. It is therefore better viewed as a bridging text that concludes one Christian story about the mission of Jesus and introduces another story about the history of the Church.

  5. Jesus as Healer in the Gospel of Matthew, Part II: Jesus as Healer in Matthew 8–9

    Directory of Open Access Journals (Sweden)

    Richard A. Culpepper

    2016-11-01

    Full Text Available This exploration of the healing narratives in Matthew 8 and 9, guided by current scholarship in the fields of medical anthropology and social-scientific study of ancient Mediterranean culture, shows that when viewed in their historical and cultural context these biblical narratives point us toward a more holistic understanding of healing that may encourage contemporary movements in this direction. In this context, the goal is ‘healing’ the person rather than simply ‘curing’ the disease. The goal of restoring persons to a state of well-being and social reintegration into their families and communities requires attention to the emotional, social and spiritual well-being of persons as well as their physical health. A critically and culturally informed interpretation of Matthew’s healing narratives may therefore promote the broader understanding of healing in view of these biblical stories.

  6. The Syriac versions of Old Testament quotations in Matthew

    Directory of Open Access Journals (Sweden)

    Herrie F. van Rooy

    2015-12-01

    Full Text Available In the Gospel of Matthew 10 quotations from the Old Testament are introduced by a formula containing the verb πληροῦν. This article explores the rendering of 9 of these 10 quotations in 3 Syriac versions of the New Testament, namely the Peshitta and the 2 versions of the Old Syriac Gospels (Sinaiticus and Curetonianus. The question addressed is the relationship of the Syriac versions to one another, to the Peshitta of the Old Testament and to the Greek Gospel. For the quotations in Matthew, their relationship to the Hebrew and Greek Old Testament is very important. In the quotations discussed, the Greek New Testament did not make much use of the Septuagint as it is known today. The Old Testament Peshitta influenced the Old Syriac, but not to the same extent in all instances. This influence could have been through Tatian’s Diatessaron. Tatian probably used the text of the Old Testament Peshitta for the quotations of the Old Testament in the gospels. In instances where the Curetonianus and the Sinaiticus differ, it could demonstrate attempts to bring the text closer to the Greek New Testament. The New Testament Peshitta normally started with a text close to the Old Syriac, but frequently adapted it to bring it closer to New Testament Greek. Die Siriese weergawes van die Ou-Testamentiese aanhalings in Matteus. Die Evangelie van Matteus het 10 aanhalings uit die Ou Testament wat deur ’n formule met die werkwoord, πληροῦν, ingelei word. Hierdie artikel ondersoek die weergawe van 9 van die 10 aanhalings in drie Siriese weergawes van die Nuwe Testament, naamlik die Peshitta en die twee weergawes van die Ou Siriese Evangelies (Sinaiticus en Curetonianus. Die vraagstuk handel oor dieverhouding van die drie Siriese weergawes tot mekaar, tot die Peshitta van die Ou Testament en die Griekse Evangelie. Vir die aanhalings in Matteus is hulle verhouding tot die Hebreeuse e Griekse Ou Testament baie belangrik. In die aanhalings wat bespreek

  7. Cumulative (DisAdvantage and the Matthew Effect in Life-Course Analysis.

    Directory of Open Access Journals (Sweden)

    Miia Bask

    Full Text Available To foster a deeper understanding of the mechanisms behind inequality in society, it is crucial to work with well-defined concepts associated with such mechanisms. The aim of this paper is to define cumulative (disadvantage and the Matthew effect. We argue that cumulative (disadvantage is an intra-individual micro-level phenomenon, that the Matthew effect is an inter-individual macro-level phenomenon and that an appropriate measure of the Matthew effect focuses on the mechanism or dynamic process that generates inequality. The Matthew mechanism is, therefore, a better name for the phenomenon, where we provide a novel measure of the mechanism, including a proof-of-principle analysis using disposable personal income data. Finally, because socio-economic theory should be able to explain cumulative (disadvantage and the Matthew mechanism when they are detected in data, we discuss the types of models that may explain the phenomena. We argue that interactions-based models in the literature traditions of analytical sociology and statistical mechanics serve this purpose.

  8. Fulfilment of Scripture and Jesus’ Teachings in Matthew

    Directory of Open Access Journals (Sweden)

    R. Alan Culpepper

    2015-08-01

    Full Text Available One of the most intriguing aspects of the experience of reading the gospels, for both beginning students and those who have been at it for decades, is the growing awareness of how the gospels convey their message. Our attention is usually focused first on what the message is: the storyline, the plot, the climax or resolution, and its implications. As we continue to read and reread, we may find that we begin to grow interested in various features of the narrative, such as its organisation, collections of material (parables or miracle stories, repetitions, the ways characters are represented or the narrator’s comments. These are not incidental features of the gospel narrative. On the contrary, they are the elements with which it is constructed and that guide the reader’s experience of the narrative. In this article we will explore how Matthew leads its Jewish-Christian readers, sometime late in the 1st century and during theprocess of the separation of early believers from the synagogue, to accept Jesus’ teachings as a new teaching on righteousness and functionally at least a new Torah. Specifically, we will analyse the role of repetition and redundancy in Matthew’s narrative rhetoric in relation to this theme. Vervulling van die Skrif en Jesus se onderrig in Matteus. Een van die boeiendste aspekte wat beginnerstudente sowel as ervare lesers met die bestudering van die evangelies ondervind, is die groeiende bewustheid van hoe die boodskap oorgedra word. Normaalweg word die aandag eerstens op die boodskap gevestig: die storielyn, die verloop, die hoogtepunt en die ontknoping, en die implikasies daarvan. Met die lees en herlees daarvan word ’n groeiende belangstelling ondervind in die onderskeie kenmerke van die narratief soos die samestelling daarvan, die tipe gegewens (gelykenisse of wonderwerke, herhalings, die manier hoe die karakters voorgestel word en die verteller se kommentaar. Hierdie is nie toevallige kenmerke van die evangelie

  9. The Gospel of Matthew, John the elder and the Papias tradition: A ...

    African Journals Online (AJOL)

    For Gundry the apostolic source of this tradition thereby guarantees its reliability, in which case we can be confident that Matthew, the disciple of Jesus, was the author of the Gospel that bears his name. Gundry's arguments are, however, not altogether convincing. It will be shown that not only is his reading of the Papian ...

  10. Siim Nestor soovitab : D1 Recordingsi turnee Eestis. Matthew Herbert / Siim Nestor

    Index Scriptorium Estoniae

    Nestor, Siim, 1974-

    2005-01-01

    Iiri techno-firma D1 Recordingsi esindajate kontsertidest 4. märtsil üritusel "Kõigem ruudus" Von Krahlis Tallinnas ja 5. märtsil Ranna klubis Sillamäel. Matthew Herbert Big Band'i ja soome elktroonilise muusika ansambli Uusi Fantaasia kontserdist 5. märtsil Sakala keskuses Tallinnas üritusel "Jazz'n'Motion"

  11. The significance of dreams and the star in Matthew's infancy narrative

    African Journals Online (AJOL)

    The phenomena of dreams and the star of Bethlehem in Matthew's birth narrative have intrigued scholars through the ages. Scholarship in this regard went through the stages of identifying the origin of the material and of arguing the historicity of these events. Currently scholarship is moving into a new stage of investigating ...

  12. Thomas Aquinas on the Beatitudes : Reading Matthew, Disputing Grace and Virtue, Preaching Happiness

    NARCIS (Netherlands)

    ten Klooster, Anton

    2018-01-01

    What is happiness and how do we attain it? Saint Thomas Aquinas (ca. 1226-1274) devoted much time to these questions. In studying them he always returned to the beatitudes as they are found in Matthew 5:1-10. They function as the framework for his theology of human happiness. This study presents

  13. President Ilves andis Washingtonis üle teenetemärgi Matthew J. Bryzale

    Index Scriptorium Estoniae

    2010-01-01

    Ameerika Ühendriikides töövisiidil viibinud president Toomas Hendrik Ilves andis 18. märtsil 2010 Eesti saatkonnas Washingtonis Maarjamaa Risti IV klassi teenetemärgi USA diplomaadile Matthew J. Bryzale. Töövisiit Ameerika Ühendriikidesse 17.-23.03.2010

  14. On Earth as It is in Heaven : New Creation in Matthew's Gospel

    NARCIS (Netherlands)

    Holmgaard, Christian

    2018-01-01

    The purpose of this dissertation is to investigate the presence and meaning of the motif of new creation in Matthew's Gospel. New creation in this study is generally defined as an eschatological expectation which refers to protology and involves divine agency. In other terms it may also be called an

  15. The "Black Ships" and "Sakoku": Commodore Matthew C. Perry's Expedition to Japan. Asian Studies Module.

    Science.gov (United States)

    Finkelston, Ted

    This curriculum guide presents the components of a U.S. history course examining the causes and immediate effects of the opening of Japan to American trade and diplomacy by Commodore Matthew C. Perry's 1853-1854 Japanese expedition. The first part of the guide introduces the goals of the course. Next, the student objectives of the course are…

  16. The Two Hands of Thomas Aquinas : The Reportationes of the Commentary on Matthew

    NARCIS (Netherlands)

    ten Klooster, Anton

    2014-01-01

    The gospel of Matthew is more important to the theology of Thomas Aquinas than most scholars have realised. Access to his commentary on this gospel is impeded by the lack of a critical edition. Moreover, we have only two reportationes of the text. In order to establish the value of these texts, I

  17. Science Information Requirements of Scientists: The Need for an Interacting Request Receiver in an Information Clearinghouse, Technical Report 3.

    Science.gov (United States)

    Kinkade, Robert G.; Bedarf, Erwin W.

    Evaluated were the role and importance of request-receiver feedback in an information system. Participants were 50 university biological scientists who agreed to place requests for information by telephone with a specially established clearinghouse. One type of receiver was a scientist holding a Ph.D. in biochemistry, with over 20 years biological…

  18. On the complex interaction between mathematics and the sciences of living systems. Comment on "Move me, astonish me...delight my eyes and brain: The Vienna Integrated Model of top-down and bottom-up processes in Art Perception (VIMAP) and corresponding affective, evaluative, and neurophysiological correlates" by Matthew Pelowski et al.

    Science.gov (United States)

    Bellomo, Nicola; Outada, Nisrine

    2017-07-01

    Cultural framework: Our comment looks at the general framework given by the interactions between the so-called ;soft; and ;hard; sciences. Specifically, it looks at the development of a mathematics for living systems. Our comment aims at showing how the interesting survey [11] can contribute to the aforementioned challenging task.

  19. Science to Support Management of Receiving Waters in an Event-Driven Ecosystem: From Land to River to Sea

    Directory of Open Access Journals (Sweden)

    Stuart E. Bunn

    2013-06-01

    Full Text Available Managing receiving-water quality, ecosystem health and ecosystem service delivery is challenging in regions where extreme rainfall and runoff events occur episodically, confounding and often intensifying land-degradation impacts. We synthesize the approaches used in river, reservoir and coastal water management in the event-driven subtropics of Australia, and the scientific research underpinning them. Land-use change has placed the receiving waters of Moreton Bay, an internationally-significant coastal wetland, at risk of ecological degradation through increased nutrient and sediment loads. The event-driven climate exacerbates this issue, as the waterways and ultimately Moreton Bay receive large inputs of nutrients and sediment during events, well above those received throughout stable climatic periods. Research on the water quality and ecology of the region’s rivers and coastal waters has underpinned the development of a world-renowned monitoring program and, in combination with catchment-source tracing methods and modeling, has revealed the key mechanisms and management strategies by which receiving-water quality, ecosystem health and ecosystem services can be maintained and improved. These approaches provide a useful framework for management of water bodies in other regions driven by episodic events, or where novel stressors are involved (e.g., climate change, urbanization, to support sustained ecosystem service delivery and restoration of aquatic ecosystems.

  20. Poor—rich demarcation of Matthew effect on scale-free systems and its application

    International Nuclear Information System (INIS)

    Dong, Yan; Sui-Ran, Yu; Ming, Dong; Bouras, Abdelaziz

    2011-01-01

    In a scale-free network, only a minority of nodes are connected very often, while the majority of nodes are connected rarely. However, what is the ratio of minority nodes to majority nodes resulting from the Matthew effect? In this paper, based on a simple preferential random model, the poor-rich demarcation points are found to vary in a limited range, and form a poor-rich demarcation interval that approximates to k/m in [3,4]. As a result, the (cumulative) degree distribution of a scale-free network can be divided into three intervals: the poor interval, the demarcation interval and the rich interval. The inequality of the degree distribution in each interval is measured. Finally, the Matthew effect is applied to the ABC analysis of project management. (general)

  1. the function of “weeping and gnashing of teeth” in matthew's gospel

    African Journals Online (AJOL)

    and gnashing of teeth”) (8:12; 13:42; 13:50; 22:13; 24:51; 25:30). Generally, interpreters ... In terms of the first question, Sim commences with a chapter that ... focused question, namely how Matthew uses the phrase weeping and gnashing of ..... In other words, a study of the forms of Jesus' teaching reveals that a majority of ...

  2. Peter as character in the Gospel of Matthew: complexity and inversion

    Directory of Open Access Journals (Sweden)

    João Leonel

    2014-03-01

    Full Text Available This article focuses on the apostle Peter as a character in the Gospel of Matthew.  It aims at identifying the nuances and changes of the character Peter in the Gospel. For this purpose, I take as a starting point that the gospel belongs to the literary genre of ancient Greco-Roman Biography, which presents Jesus Christ as the protagonist. The other characters are developed in relationship with him. The same is true with the Apostle Peter. The article unfolds from narrative theory, in particular the categorization of characters. I categorize, based on Erich Auerbach and Robert Alter, the features of biblical characters, developing comparisons with theories of the character in the modern novel. The analysis of the main texts from the Gospel of Matthew that portray the character Peter leads to the conclusion that its main features are complexity and inversion. They produce an overview of the involution of the character in the narrative of the Gospel of Matthew.

  3. Language, meaning, sense and reference: Matthew's passion narrative and Psalm 22

    Directory of Open Access Journals (Sweden)

    S. van Tilborg

    1988-01-01

    Full Text Available The passion narrative of Jesus as told by Matthew is a verbal enunciation which finds its place next to other passion narratives in which the narrator lets the protagonist use the words of the '1' person of Psalm 22 and in which the narrator describes internal and external conflicts with the words of the Psalm. Against the background of the Greek Septuagint and the Aramaic text in the Targum, parallel to what the hymnist of Qumran tries to do and the narrator of the story about Aseneth, based on the narrative as we find it in Mark, Matthew took Psalm 22 as anchor for his story. What is described in the Psalm, happens in the life and death of Jesus. To approach Jesus' passion more closely, Matthew used poetic language: words on words on words. The passion and death of Jesus has thus become literature, an ambiguous attempt to express the impossible. The question, 'how can one maintain today compassion against the forces of violence?', is the concern of the article.

  4. A new era in nuclear energy science. When will radiation application receive citizenship ranking along with energy utilization

    International Nuclear Information System (INIS)

    Tabata, Yoneho; Tagawa, Seiichi; Saito, Naoki; Fujii, Yasuhiko

    2005-01-01

    Japan has been obtaining definite results in these decades in both fields of nuclear power generation (energy utilization) and radiation application thus contributing to a sustainable development of the world. The present special issue of 'Atom Eye' introduces (1) Japanese achievements in cooperative relationships with developing countries in the field of radiation applications, (2) history of research and development of radiation-utilization techniques in Japan, (3) present status of quantum-beam applications in life-science, medial application, and nano-technology, etc, (4) applications of high-intensity neutron source, (5) cancer therapy using high-energy heavy-ion beams, (6) radiation sterilizations, (7) radiation mutations, (8) three interviewer's reports visiting several research institutes of radiation applications in Japan, and introduction of (9) a bencher enterprise and also (10) an accelerator business. (S. Ohno)

  5. The Utopia of Science Education

    Science.gov (United States)

    Castano, Carolina

    2012-01-01

    In this forum I expand on the ideas I initially presented in "Extending the purposes of science education: addressing violence within socio-economic disadvantaged communities" by responding to the comments provided by Matthew Weinstein, Francis Broadway and Sheri Leafgren. Focusing on their notion of utopias and superheroes, I ask us to reconsider…

  6. Una conversación con Matthew Sher sobre privacidad y la amistad

    OpenAIRE

    García, María Beatriz; Fleischman, William M.; Bogado García, Joaquín Ignacio

    2013-01-01

    El siguiente trabajo indaga en la importancia de la privacidad para la dignidad humana desde dos miradas esenciales al tema: ética y psicológica, teniendo cuenta la privacidad en las redes sociales y el comportamiento de la generación del milenio según el artículo de Matthew Sher al respecto. Partiendo de la necesidad y la valoración de la de privacidad se va desarrollando su conceptualización a la luz de la Etica Nicomaquea, su lugar en la estructuración del psiquismo y su impronta en la ...

  7. Gothic elements in contemporary detective story : Matthew Gregory Lewis and Minette Walters compared

    Directory of Open Access Journals (Sweden)

    Vesna Marinko

    2009-12-01

    Full Text Available One of the most shocking Gothic novels was written by Matthew Gregory Lewis in 1796. His Gothic novel The Monk contains all the typical Gothic elements such as a ruined castle, aggressive villain, women in distress, the atmosphere of terror and horror and a lot more. This article analyses and compares to what extent the Gothic elements of the late 18th century survived in the contemporary detective story The Ice House (1993 written by Minette Walters and how these elements have changed.

  8. Comparative endurance testing of the Biomet Matthews Nail and the Dynamic Compression Screw, in simulated condylar and supracondylar femoral fractures

    Directory of Open Access Journals (Sweden)

    Davies Benjamin M

    2008-01-01

    Full Text Available Abstract Background The dynamic compression screw is a plate and screws implant used to treat fractures of the distal femur. The Biomet Matthews Nail is a new retrograde intramedullary nail designed as an alternative surgical option to treat these fractures. The objective of this study was to assess the comparative endurance of both devices. Method The dynamic compression screw (DCS and Biomet Matthews Nail (BMN were implanted into composite femurs, which were subsequently cyclically loaded using a materials testing machine. Simulated fractures were applied to each femur prior to the application of load. Either a Y type fracture or a transverse osteotomy was prepared on each composite femur using a jig to enable consistent positioning of cuts. Results The Biomet Matthews Nail demonstrated a greater endurance limit load over the dynamic compression screw in both fracture configurations. Conclusion The distal locking screws pass through the Biomet Matthews Nail in a unique "cruciate" orientation. This allows for greater purchase in the bone of the femoral condyle and potentially improves the stability of the fracture fixation. As these fractures are usually in weak osteoporotic bone, the Biomet Matthews Nail represents a favourable surgical option in these patients.

  9. The Matthew effect in environmental science publication: A bibliometric analysis of chemical substances in journal articles

    DEFF Research Database (Denmark)

    Grandjean, Philippe; Eriksen, Mette Lindholm; Ellegaard, Ole

    2011-01-01

    attention. Results The 119,636 journal articles found had 760,056 CAS number links during 2000-2009. The top-20 environmental chemicals consisted of metals, (chlorinated) biphenyls, polyaromatic hydrocarbons, benzene, and ethanol and contributed 12% toward the total number of links- Each of the top-20...... substances was covered by 2,000-10,000 articles during the decade. The numbers for the 10-year period were similar to the total numbers of pre-2000 articles on the same chemicals. However, substances considered a high priority from a regulatory viewpoint, due to lack of documentation, showed very low...

  10. Matthew Mackisack - Discoveries: Art, Science & Exploration [exposição

    Directory of Open Access Journals (Sweden)

    Matthew Mackisack

    2015-12-01

    Full Text Available Being a selection from all eight museums of the University of Cambridge, which concern everything from archaeology to zoology, the diversity of objects on display in Discoveries is remarkable. Cultural artefacts, fossils, western fine art, and scientific instruments, all sit alongside one another. The curators have – for the most part, very effectively – grouped the things into themed sections: “Objects”, “Inscriptions”, “Illuminations”, “Collections”, and “Founders”. The latter two themes in...

  11. Living shorelines enhanced the resilience of saltmarshes to Hurricane Matthew (2016).

    Science.gov (United States)

    Smith, Carter S; Puckett, Brandon; Gittman, Rachel K; Peterson, Charles H

    2018-06-01

    Nature-based solutions, such as living shorelines, have the potential to restore critical ecosystems, enhance coastal sustainability, and increase resilience to natural disasters; however, their efficacy during storm events compared to traditional hardened shorelines is largely untested. This is a major impediment to their implementation and promotion to policy-makers and homeowners. To address this knowledge gap, we evaluated rock sill living shorelines as compared to natural marshes and hardened shorelines (i.e., bulkheads) in North Carolina, USA for changes in surface elevation, Spartina alterniflora stem density, and structural damage from 2015 to 2017, including before and after Hurricane Matthew (2016). Our results show that living shorelines exhibited better resistance to landward erosion during Hurricane Matthew than bulkheads and natural marshes. Additionally, living shorelines were more resilient than hardened shorelines, as they maintained landward elevation over the two-year study period without requiring any repair. Finally, rock sill living shorelines were able to enhance S. alterniflora stem densities over time when compared to natural marshes. Our results suggest that living shorelines have the potential to improve coastal resilience while supporting important coastal ecosystems. © 2018 by the Ecological Society of America.

  12. Phenotypic spectrum of STRA6 mutations: from Matthew-Wood syndrome to non-lethal anophthalmia.

    Science.gov (United States)

    Chassaing, Nicolas; Golzio, Christelle; Odent, Sylvie; Lequeux, Léopoldine; Vigouroux, Adeline; Martinovic-Bouriel, Jelena; Tiziano, Francesco Danilo; Masini, Lucia; Piro, Francesca; Maragliano, Giovanna; Delezoide, Anne-Lise; Attié-Bitach, Tania; Manouvrier-Hanu, Sylvie; Etchevers, Heather C; Calvas, Patrick

    2009-05-01

    Matthew-Wood, Spear, PDAC or MCOPS9 syndrome are alternative names used to refer to combinations of microphthalmia/anophthalmia, malformative cardiac defects, pulmonary dysgenesis, and diaphragmatic hernia. Recently, mutations in STRA6, encoding a membrane receptor for vitamin A-bearing plasma retinol binding protein, have been identified in such patients. We performed STRA6 molecular analysis in three fetuses and one child diagnosed with Matthew-Wood syndrome and in three siblings where two adult living brothers are affected with combinations of clinical anophthalmia, tetralogy of Fallot, and mental retardation. Among these patients, six novel mutations were identified, bringing the current total of known STRA6 mutations to seventeen. We extensively reviewed clinical data pertaining to all twenty-one reported patients with STRA6 mutations (the seven of this report and fourteen described elsewhere) and discuss additional features that may be part of the syndrome. The clinical spectrum associated with STRA6 deficiency is even more variable than initially described. Copyright 2009 Wiley-Liss, Inc.

  13. Examining the Matthew effect on the motivation and ability to stay at work after heart disease.

    Science.gov (United States)

    Meland, Eivind; Grønhaug, Siri; Oystese, Kristin; Mildestvedt, Thomas

    2011-07-01

    Cardiac rehabilitation should safeguard that socioeconomic factors or other differences that affect people's cardiovascular health are not further aggravated after healthcare treatment. The study examines whether socioeconomic status, emotional problems, or the severity of disease affect people's ability to continue to work after heart disease. We also examined if these effects can be explained by differences in motivational factors. 217 patients (41 women) from the Krokeide Rehabilitation Centre in Bergen participated. Multiple linear regression analysis was used to examine motivational differences, and logistic regression analysis was used to examine whether socioeconomic factors or other differences affected people's ability to continue to work after heart disease. Self-efficacy for future work strongly impacted the likelihood of being incapacitated for work during the 2-year follow-up. The household's total income and emotional problems were statistically significant related to patients dropping out from work in the course of the observation. The association between emotional problems and future work was mediated by motivational problems. The relation between income and future incapacity for work could not be explained by motivational factors. The study shows a clear Matthew effect on people's ability to continue to work after heart disease as low-income groups and people with emotional problems are more at risk of dropping out of work. This Matthew effect was, however, only explained by the motivational difficulties for the association between emotional distress and dropping out of work and not for the impact of household income on the likelihood of leaving work.

  14. Diversity receiver

    NARCIS (Netherlands)

    2005-01-01

    The invention is directed to the reception of high rate radio signals (for example DVB-T signals) while the receiver is moving at a high speed (for example in or with a car). Two or more antennas (12, 16) are closely spaced and arranged behind each other in the direction of motion (v) for receiving

  15. Hurricane Impacts on Small Island Communities: Case study of Hurricane Matthew on Great Exuma, The Bahamas

    Science.gov (United States)

    Sullivan Sealey, Kathleen; Bowleg, John

    2017-04-01

    Great Exuma has been a UNESCO Eco-hydrology Project Site with a focus on coastal restoration and flood management. Great Exuma and its largest settlement, George Town, support a population of just over 8.000 people on an island dominated by extensive coastal wetlands. The Victoria Pond Eco-Hydrology project restored flow and drainage to highly-altered coastal wetlands to reduce flooding of the built environment as well as regain ecological function. The project was designed to show the value of a protected wetland and coastal environment within a populated settlement; demonstrating that people can live alongside mangroves and value "green" infrastructure for flood protection. The restoration project was initiated after severe storm flooding in 2007 with Tropical Storm Noel. In 2016, the passing of Hurricane Matthew had unprecedented impacts on the coastal communities of Great Exuma, challenging past practices in restoration and flood prevention. This talk reviews the loss of natural capital (for example, fish populations, mangroves, salt water inundation) from Hurricane Matthew based on a rapid response survey of Great Exuma. The surprisingly find was the impact of storm surge on low-lying areas used primarily for personal farms and small-scale agriculture. Although women made up the overwhelming majority of people who attended Coastal Restoration workshops, women were most adversely impacted by the recent hurricane flooding with the loss of their small low-lying farms and gardens. Although increasing culverts in mangrove creeks in two areas did reduce building flood damage, the low-lying areas adjacent to mangroves, mostly ephemeral freshwater wetlands, were inundated with saltwater, and seasonal crops in these areas were destroyed. These ephemeral wetlands were designed as part of the wetland flooding system, it was not known how important these small areas were to artisanal farming on Great Exuma. The size and scope of Hurricane Matthew passing through the

  16. Behold the glory of the King: The chiastic structures of Matthew 21−25

    Directory of Open Access Journals (Sweden)

    Jacob J. Scholtz

    2015-03-01

    Full Text Available The Olivet Discourse is complex and difficult to interpret, but crucial to any preaching about eschatology. By identifying two chiastic structures that mirror each other, namely in Matthew 21:1−23:39 and 24:1−25:46, the relation and correspondence of the parts to each other and to the whole may be identified. Whereas the centre of the chiastic structure of Matthew 21:1−23:39 emphasises the authority and identity of Jesus Christ, the Lord and Son of David, the centre of the chiastic structure of 24:1−25:46 focuses on the sign and coming of the Son of Man. Matthew 21:1−25:46 could be a major literary unit that emphasises the King’s entrance into, rejection of and exit from the temple and Jerusalem during his first coming, juxtaposed with the sign and coming of the Son of Man to Jerusalem in glory. Until then, the Lord expects his followers to watch, to be ready and prepared as they labour faithfully for him in these last days. Kyk die heerlikheid van die Koning: Die chiastiese strukture van Matteus 21−25. Die Olyfberg-diskoers is kompleks en moeilik om te interpreteer, dog onontbeerlik vir enige prediking oor die eskatologie. Deur die eiening van twee chiastiese strukture wat mekaar weerspieël, naamlik in Matteus 21:1−23:39 en 24:1−25:46, kan die verhouding en ooreenkomste van die dele tot mekaar en die geheel geïdentifiseer word. Waar die middelpunt van die chiastiese struktuur in Matteus 21:1−23:39 die gesag en identiteit van Jesus Christus, die Here en Seun van Dawid, beklemtoon, fokus die middelpunt van die chiastiese struktuur in 24:1−25:46 op die teken en koms van die Seun van die Mens. Matteus 21:1−25:46 sou ’n belangrike literêre eenheid kon wees wat die Koning se ingang na, verwerping en agterlaat van die tempel en Jerusalem tydens sy eerste koms beklemtoon teenoor die teken en koms van die Seun van die Mens na Jerusalem in heerlikheid. Tot dan verwag die Here van sy volgelinge om te waak

  17. "This strange process of typing on a glowing glass screen": an interview with Matthew Kirschenbaum

    Directory of Open Access Journals (Sweden)

    Portela, Manuel

    2016-07-01

    Full Text Available Track Changes, by Matthew Kirschenbaum, tells the early history of word processing, roughly situated between 1964—when the IBM Magnetic Tape/Selectric Typewriter (MT/ST was advertised as a word processing system for offices—and 1984—when the Apple Macintosh generalized the graphical user interface in personal computers. The history of word processing both as technological process and mode of textual production is deeply entangled with the changes in the technologies of writing as they reflect and contribute to efficiency and control in increasingly bureaucratic processes of social administration and organization. The literary history of word processing can be situated within this general computerization of the modes of production of writing. Kirschenbaum’s methods combine archival work in special collections and writers’ archives, oral interviews with writers and engineers, and hands-on descriptions of historical word processing machines. Track Changes is the subject of this interview.

  18. On Growth and Form in context - an interview with Matthew Jarron.

    Science.gov (United States)

    Maartens, Aidan

    2017-12-01

    D'Arcy Thompson was born in 1860, trained in Edinburgh and Cambridge, and held positions in Dundee and St Andrews, where he worked until his death in 1948. On Growth and Form , his classic work on the mathematical patterns and physical rules underlying biological forms, was first published in 1917. To learn more about the book's context, we met Matthew Jarron, Curator of Museum Services at the University of Dundee, in the University's D'Arcy Thompson Zoology Museum. Surrounded by specimens, many of which were collected by Thompson himself, we discussed the legacy of On Growth and Form and the life of the man behind it. © 2017. Published by The Company of Biologists Ltd.

  19. Jesus as healer in the Gospel of Matthew, part 1: Methodology

    Directory of Open Access Journals (Sweden)

    Richard A. Culpepper

    2016-11-01

    Full Text Available This exploration of the healing narratives in Matthew 8 and 9, guided by current scholarship in the fields of medical anthropology and social-scientific study of ancient Mediterranean culture, shows that when viewed in their historical and cultural context these biblical narratives point toward a more holistic understanding of healing that may encourage contemporary movements in this direction. In this context, the goal is ‘healing’ the person rather than simply ‘curing’ the disease. The goal of restoring persons to a state of well-being and social reintegration into their families and communities requires attention to the emotional, social, and spiritual well-being of persons as well as their physical health. A critically and culturally informed interpretation of Matthew’s healing narratives may therefore promote the broader understanding of healing in view in these biblical stories.

  20. From text to intertext: Intertextuality as a paradigm for reading Matthew

    Directory of Open Access Journals (Sweden)

    Stefan Alkier

    2005-10-01

    Full Text Available In this article intertextuality is introduced as one important part of a theory of the semiotics of biblical texts. Intertextuality is an essential factor for the generation of the meanings of a text in the acts of the production and reception of a text. It opens the internal structure of a text with regard to its relations to other texts. The semiotic concept of intertextuality distinguishes three ways of intertextual readings: production-oriented intertextuality, reception-oriented intertextuality and experimental intertextuality. This wide but differentiated concept of intertextuality can serve as a theory and helpful method for investigations of the history of biblical texts as well as for reflected school lessons, sermons and poetics in today’s times. An intertextual reading of the first chapter of Matthew provides a test case of this semiotic concept of intertextuality.

  1. Chrysostom’s exegesis of the Gospel according to St. Matthew

    Directory of Open Access Journals (Sweden)

    Arkadiusz Baron

    2008-06-01

    Full Text Available This article is divided into four sections. In the first, Fr. Arkadiusz Baron describes shortly the reception of Chrysostom’s writings in the ancient world in the East and in the West. It is surprising that the “Golden Mouth” and his homilies have triggered so many difficulties from the very beginning until the present. In the past, in the East, a growing conflict with the Severian of Gabbala and other bishops became the main obstacle to the reception of Chrysostom’s preaching. In 403, at the so-called council at the oak, Chrysostom was condemned and exiled. One of many false accusations charged him with being too merciful toward sinners who were recidivists. In the West, Anian of Celedo, Pelagius’ friend, translated Chrysostom’s homilies (especially on Matthew into Latin. Pelagianism was condemned and Chrysostom was suspected to be semi-Pelagian. The oldest and most integral Latin version of Chrysostom’s homilies on record date back from the twelfth century. In the fifteenth century pope Nicholaus V asked for a new translation. Similarly in Poland, Chrysostom was not too lucky. In Polish, only about 15 per cent of his homilies are available. Among the translators are J. Wujek, A. Załęski and J. Krystyniacki from the eighteenth century, and T. Sinko, W. Kania, A. Baron and J. Iluk from the twentieth century. Some of them are historians and philologists, but not theologians. This is a problem of the existing Polish translations: we need a good theological, biblical and homiletical elaboration of Chrysostom’s homilies. Homilies on Matthew were preached in 390 in Antioch when Chrysostom was already well-known. Chrysostom’s homilies are the first and one of the best ancient commentaries to this Gospel. He is the only man who in the first millennium of Christianity explained the Acts of the Apostles, and he is the only one in Christianity to do this in the form of homilies. The centre of the Jesus’ Gospel according to Chrysostom

  2. Women at Home and Women in the Workplace in Matthew Weiner´s "Mad Men"

    Directory of Open Access Journals (Sweden)

    Susana Sánchez Renieblas

    2013-01-01

    Full Text Available Matthew Weiner´s successful American TV series, Mad Men (2007, set in the 1960s in New York, unmasks the private and the public spaces of the home and the office. In these spaces, not only do the masculine protagonists interact, but also several feminine characters do as well. The three female characters (Betty, Peggy and Joan, who will be analyzed, represent the female stereotypes of this period: the idyllic housewife, the Sandra Dee prototype and the bombshell Marilyn Monroe archetype. In comparing the private and public spaces of the home and the office, these women´s sexuality and submission will be affected and influenced by the spaces they inhabit.

  3. Reading Matthew 13 as a prophetic discourse: The four parables presented in public

    Directory of Open Access Journals (Sweden)

    Jacob J. Scholtz

    2015-04-01

    Full Text Available This article proposes that the task of Jesus’ disciples could be to juxtapose new and old unconditional prophecies concerning the kingdom of heaven. Matthew 13 can be read as a prophetic discourse and specific, prophetic referents are identified to gain insight into the prophecies contained in these parables. From a pre-millennial perspective, the kingdom of heaven is seen to exist in terms of the New Covenant in a spiritual sense from the cross of Christ onwards, but it will also be established in a literal sense in terms of the Davidic Covenant when Christ returns. This article discusses the four parables of Matthew 13 that were presented in public. ’n Ondersoek na Matteus 13 as ’n profetiese diskoers: Die vier gelykenisse wat in die openbaar aangebied is. Hierdie artikel stel voor dat dit die taak van Jesus se dissipels sou kon wees om nuwe en ou onvoorwaardelike profesieë oor die koninkryk van die hemele met mekaar te vergelyk. Matteus 13 kan as ’n profetiese diskoers gelees word en spesifieke, profetiese referente word geïdentifiseer om die profesieë in hierdie gelykenisse te begryp. Vanuit ’n pre-millenniale perspektief blyk dit dat die koninkryk van die hemele in ’n geestelike sin in terme van die Nuwe Verbond vanaf Christus se kruis en daarna bestaan, maar dit sal ook in ’n letterlike sin tot stand kom in terme van die Dawidiese Verbond wanneer Christus terugkeer. Hierdie artikel bespreek die vier gelykenisse van Matteus 13 wat in die openbaar aangebied is.

  4. Monitoring storm tide and flooding from Hurricane Matthew along the Atlantic coast of the United States, October 2016

    Science.gov (United States)

    Frantz, Eric R.; Byrne,, Michael L.; Caldwell, Andral W.; Harden, Stephen L.

    2017-11-02

    IntroductionHurricane Matthew moved adjacent to the coasts of Florida, Georgia, South Carolina, and North Carolina. The hurricane made landfall once near McClellanville, South Carolina, on October 8, 2016, as a Category 1 hurricane on the Saffir-Simpson Hurricane Wind Scale. The U.S. Geological Survey (USGS) deployed a temporary monitoring network of storm-tide sensors at 284 sites along the Atlantic coast from Florida to North Carolina to record the timing, areal extent, and magnitude of hurricane storm tide and coastal flooding generated by Hurricane Matthew. Storm tide, as defined by the National Oceanic and Atmospheric Administration, is the water-level rise generated by a combination of storm surge and astronomical tide during a coastal storm.The deployment for Hurricane Matthew was the largest deployment of storm-tide sensors in USGS history and was completed as part of a coordinated Federal emergency response as outlined by the Stafford Act (Public Law 92–288, 42 U.S.C. 5121–5207) under a directed mission assignment by the Federal Emergency Management Agency. In total, 543 high-water marks (HWMs) also were collected after Hurricane Matthew, and this was the second largest HWM recovery effort in USGS history after Hurricane Sandy in 2012.During the hurricane, real-time water-level data collected at temporary rapid deployment gages (RDGs) and long-term USGS streamgage stations were relayed immediately for display on the USGS Flood Event Viewer (https://stn.wim.usgs.gov/FEV/#MatthewOctober2016). These data provided emergency managers and responders with critical information for tracking flood-effected areas and directing assistance to effected communities. Data collected from this hurricane can be used to calibrate and evaluate the performance of storm-tide models for maximum and incremental water level and flood extent, and the site-specific effects of storm tide on natural and anthropogenic features of the environment.

  5. Impact of Hurricane Irma in the post-recovery of Matthew in South Carolina, the South Atlantic Bight (Western Atlantic)

    Science.gov (United States)

    Harris, M. S.; Levine, N. S.; Jaume, S. C.; Hendricks, J. K.; Rubin, N. D.; Hernandez, J. L.

    2017-12-01

    The impacts on the Southeastern United States (SEUS, Western Atlantic) from Hurricane Irma in Sept 2017 were felt primarily on the active coastline with the third highest inland storm surge in Charleston and Savannah since the 19th Century. Coastal geometry, waves, and wind duration had a strong influence on the storm surge and coastal erosion impacts regionally. To the North and immediate South, impacts were much less. A full year after the 2016 hurricane season (Hurricane Matthew), the lack of regional recovery reduced protection against Irma. The most devastating impacts of Irma in the SAB occurred from 300 to 500 km away from the eye, on the opposite side of the Floridian peninsula. As Irma devastated the Caribbean, winds started to increases off the SAB on September 8 in the early morning, continuing for the next 3 days and blowing directly towards the SC and GA coasts. Tide gauges started to respond the night of September 8, while waves started arriving in the SEUS around Sept 6. Coastal erosion pre- and post-Irma has been calculated for Central SC using vertical and oblique aerial photos. Citizen Science initiatives through the Charleston Resilience Network have provided on-the-ground data during storms when transportation infrastructures were closed, and allow for ground-truth post-storm of surge and impacts. Said information was collected through Facebook, Google, and other social media. Pictures with timestamps and water heights were collected and are validating inundation flood maps generated for the Charleston SC region. The maps have 1-m horizontal and 7- to 15-cm vertical accuracy. Inundation surfaces were generated at MHHW up to a maximum surge in 6 inch increments. The flood extents of the modeled surge and the photographic evidence show a high correspondence. Storm surge measurements from RTK-GPS provide regional coverage of surge elevations from the coast, inland, and allow for testing of modeled results and model tuning. With Hurricane Irma

  6. Reading Matthew 13 as a prophetic discourse: The four parables presented in private

    Directory of Open Access Journals (Sweden)

    Jacob J. Scholtz

    2015-04-01

    Full Text Available The task of Jesus’ disciples might be to juxtapose ‘new and old’ unconditional prophecies of the kingdom of heaven. After describing its setting, the four parables in Matthew 13, presented in private, are considered from a pre-millennial perspective. The parable of the hidden treasure may indicate how Jesus Christ first authenticates and then hides his authority and power to rule as King in terms of the Davidic Covenant over the literal Davidic kingdom – before he then goes to the cross. Having been to the cross, the parable of the pearl merchant may show how the first, spiritual phase of the kingdom commences when Christ Jesus starts his pearl ministry as High Priest in terms of the New Covenant. The parable of the dragnet has in view the transition from the spiritual phase of the kingdom into its future phase. An overview of the four privately given parables of Matthew 13 is then provided. After this a summary of the new and old prophecies contained in the eight parables of Matthew 13 is presented, followed by the conclusion. ’n Ondersoek na Matteus 13 as ’n profetiese diskoers: Die vier gelykenisse wat privaat aangebied is. Die taak van Jesus se dissipels sou kon wees om ‘nuwe en ou’ onvoorwaardelike profesieë van die koninkryk van die hemele met mekaar te vergelyk. Nadat die konteks beskryf is, word die vier gelykenisse in Matteus 13 wat privaat aangebied is vanuit ’n pre-millenniale perspektief oorweeg. Die gelykenis van die verborge skat sou kon aantoon hoe Jesus Christus sy gesag en mag om as Koning in terme van die Dawidiese Verbond oor die letterlike Dawidiese koninkryk te regeer, eers bevestig en dan verberg – waarna Hy kruis toe gaan. Nadat Hy gekruisig is, sou die gelykenis van die pêrelkoper kon aantoon hoe die eerste, geestelike fase van die koninkryk ’n aanvang neem as Christus Jesus sy pêrelbediening as Hoëpriester in terme van die Nuwe Verbond begin. Die gelykenis van die net toon die

  7. Transformational Zones and Violent Encounters. Matthew Barney’s “The Order”

    Directory of Open Access Journals (Sweden)

    Stefanie Heine

    2014-06-01

    Full Text Available In “The Order,” Matthew Barney transforms the Guggenheim Museum into a space reminding of a computer game or sports-arena. The protagonist struggles his way through different ‘levels’ and at the heart of the setting, he is confronted with the para-athlete Aimee Mullins, a cyborg embodying the Deleuzian notion of the ani/omalous. To complete his final task, the protagonist kills the creature. The question arises, why the ani/omalous has to be violently eliminated. In this respect, it is important to know that the DVD offers two viewing options: a film version structured according to a fixed narrative order and an interactive version where one can switch between the levels simultaneously. Thus, Barney’s film also raises the question of the aesthetic order at work and invites to consider how what is shown relates to the way in which it is shown.Keywords: Matthew Barney, becoming ani/omalous, Deleuze & Guattari, violence in artMatthew Barney’s hybrid monumental aesthetic work the Cremaster Cycle, consisting of film material, but also integrating drawings, sculpture, photography and performance elements can as such be considered as a multiplicity in Gilles Deleuze’s and Félix Guattari’s terms. In A Thousand Plateaus, Deleuze and Guattari argue against Art (with a capital A as a nominal concept and in favour of “the possibility of a simultaneous usage of the various arts within a determinable multiplicity” (331. That Barney’s work is indebted to Deleuze’s and Guattari’s philosophy seems unquestionable. What interests me in this paper is the relation between Deleuze’s and Guattari’s thinking and Barney’s own theoretical conceptions of art as well as how an example of Barney’s artistic work locates itself against the background of these frameworks. To do so, I want to concentrate on a so-called “choric interlude” in Cremaster 3 titled “The Order,” “which rehearses the initiation rites of the Masonic

  8. From Norman Mailer to Matthew Barney. The post human myth of Gary Gilmore

    Directory of Open Access Journals (Sweden)

    Francesca Agamennoni

    2012-11-01

    Full Text Available Gary Gilmore, a murderer who was condamned to death in the USA in 1976, gained international notoriety thanks to his decision to accept and encourage his death sentence, refusing every kind of juridical appeal, surprisingly turning his own execution into a public and intentional suicide. For its power to make American institutions wonder about ethical and political problems, like the legitimacy of death penalty or the relationship between individual freedom and public law, this case inspired in 1979 The Executioner's Song, a non-fiction novel by Norman Mailer. about twenty years later Gilmore became a character of The Cremaster Cycle, one of the most important works by the american video-artist Matthew Barney, who based the plot of his Cremaster 2 (the second episode of this five-movie saga on Mailer's novel. The comparison between Cremaster 2 and its literary model will provide an example of the transformation of a story between different artistic languages, but also between different historical and cultural backgrounds: in the post human era the story of Gary Gilmore has lost most of its political and ethical meanings becoming a symbol of the struggle between human willingness and biological destiny.

  9. Leveraging Twitter to gauge evacuation compliance: Spatiotemporal analysis of Hurricane Matthew.

    Science.gov (United States)

    Martín, Yago; Li, Zhenlong; Cutter, Susan L

    2017-01-01

    Hurricane Matthew was the deadliest Atlantic storm since Katrina in 2005 and prompted one of the largest recent hurricane evacuations along the Southeastern coast of the United States. The storm and its projected landfall triggered a massive social media reaction. Using Twitter data, this paper examines the spatiotemporal variability in social media response and develops a novel approach to leverage geotagged tweets to assess the evacuation responses of residents. The approach involves the retrieval of tweets from the Twitter Stream, the creation and filtering of different datasets, and the statistical and spatial processing and treatment to extract, plot and map the results. As expected, peak Twitter response was reached during the pre-impact and preparedness phase, and decreased abruptly after the passage of the storm. A comparison between two time periods-pre-evacuation (October 2th-4th) and post-evacuation (October 7th-9th)-indicates that 54% of Twitter users moved away from the coast to a safer location, with observed differences by state on the timing of the evacuation. A specific sub-state analysis of South Carolina illustrated overall compliance with evacuation orders and detailed information on the timing of departure from the coast as well as the destination location. These findings advance the use of big data and citizen-as-sensor approaches for public safety issues, providing an effective and near real-time alternative for measuring compliance with evacuation orders.

  10. Leveraging Twitter to gauge evacuation compliance: Spatiotemporal analysis of Hurricane Matthew.

    Directory of Open Access Journals (Sweden)

    Yago Martín

    Full Text Available Hurricane Matthew was the deadliest Atlantic storm since Katrina in 2005 and prompted one of the largest recent hurricane evacuations along the Southeastern coast of the United States. The storm and its projected landfall triggered a massive social media reaction. Using Twitter data, this paper examines the spatiotemporal variability in social media response and develops a novel approach to leverage geotagged tweets to assess the evacuation responses of residents. The approach involves the retrieval of tweets from the Twitter Stream, the creation and filtering of different datasets, and the statistical and spatial processing and treatment to extract, plot and map the results. As expected, peak Twitter response was reached during the pre-impact and preparedness phase, and decreased abruptly after the passage of the storm. A comparison between two time periods-pre-evacuation (October 2th-4th and post-evacuation (October 7th-9th-indicates that 54% of Twitter users moved away from the coast to a safer location, with observed differences by state on the timing of the evacuation. A specific sub-state analysis of South Carolina illustrated overall compliance with evacuation orders and detailed information on the timing of departure from the coast as well as the destination location. These findings advance the use of big data and citizen-as-sensor approaches for public safety issues, providing an effective and near real-time alternative for measuring compliance with evacuation orders.

  11. Fact, Myth and Legend in Matthew Arnold’s Westminster Abbey

    Directory of Open Access Journals (Sweden)

    Tadej Braček

    2007-06-01

    Full Text Available The paper deals with the multilayered elegy “Westminster Abbey;” which was not given a lot of attention by Matthew Arnold’s critics. The poem is dedicated to Arnold’s life-long friend Dean Stanley; who was; like Arnold himself; “a child of light.” The term refers to their common fight against Philistinism in the English society of the time. As the poem is about a real person; it contains real data; such as excerpts from Stanley’s life; described in the form of praise. However; the poem also introduces the old Saxon legend of consecration of the Abbey; namely the consecration by the light; performed by the First Apostle (St Peter himself. In addition to the legend; Arnold also used some classical Greek allusions to depict the late Dean’s character. In one of the allusions; Stanley is associated with Demophon; whose immortality was never achieved due to the fault of another human; and in the second he is transformed into an everlasting oracle of the Abbey using the Trophonius; a builder of Delphi; metaphor. All elements of the poem form a homogenous eulogy; making it worthwhile reading for English scholars and students; and possibly a candidate for the English poetic canon.

  12. Absence of quantum oscillations in electronic excitation transfer in the Fenna-Matthews-Olson complex

    Science.gov (United States)

    Eisfeld, Alexander; Ritschel, Gerhard; Roden, Jan; Strunz, Walter; Aspuru-Guzik, Alan

    2012-02-01

    Energy transfer in the photosynthetic Fenna-Matthews-Olson (FMO) complex of the Green Sulfur Bacteria is studied theoretically taking all three subunits (monomers) of the FMO trimer and the recently found eighth bacteriochlorophyll (BChl) molecule into account. For the calculations we use the efficient Non-Markovian Quantum State diffusion approach. Since it is believed that the eighth BChl is located near the main light harvesting antenna we look at the differences in transfer between the situation when BChl 8 is initially excited and the usually considered case when BChl 1 or 6 is initially excited. We find strong differences in the transfer dynamics, both qualitatively and quantitatively. When the excited state dynamics is initialized at site eight of the FMO complex, we see a slow exponential-like decay of the excitation. This is in contrast to the oscillations and a relatively fast transfer that occurs when only seven sites or initialization at sites 1 and 6 is considered. Additionally we show that differences in the values of the electronic transition energies found in the literature lead to a large difference in the transfer dynamics.

  13. Dynamics of electronic dephasing in the Fenna-Matthews-Olson complex

    International Nuclear Information System (INIS)

    Hayes, Dugan; Panitchayangkoon, Gitt; Fransted, Kelly A; Caram, Justin R; Freed, Karl F; Engel, Gregory S; Wen Jianzhong

    2010-01-01

    Electronic coherence has been shown to persist in the Fenna-Matthews-Olson (FMO) antenna complex from green sulfur bacteria at 77 K for at least 660 fs, several times longer than the typical lifetime of a coherence in a dynamic environment at this temperature. Such long-lived coherence was proposed to improve energy transfer efficiency in photosynthetic systems by allowing an excitation to follow a quantum random walk as it approaches the reaction centre. Here we present a model for bath-induced electronic transitions, demonstrating that the protein matrix protects coherences by globally correlating fluctuations in transition energies. We also quantify the dephasing rates for two particular electronic coherences in the FMO complex at 77 K using two-dimensional Fourier transform electronic spectroscopy and find that the lifetimes of individual coherences are distinct. Within the framework of noise-assisted transport, this result suggests that the FMO complex has been locally tuned by natural selection to optimize transfer efficiency by exploiting quantum coherence.

  14. Plasmonic bio-sensing for the Fenna-Matthews-Olson complex

    Science.gov (United States)

    Chen, Guang-Yin; Lambert, Neill; Shih, Yen-An; Liu, Meng-Han; Chen, Yueh-Nan; Nori, Franco

    2017-01-01

    We study theoretically the bio-sensing capabilities of metal nanowire surface plasmons. As a specific example, we couple the nanowire to specific sites (bacteriochlorophyll) of the Fenna-Matthews-Olson (FMO) photosynthetic pigment protein complex. In this hybrid system, we find that when certain sites of the FMO complex are subject to either the suppression of inter-site transitions or are entirely disconnected from the complex, the resulting variations in the excitation transfer rates through the complex can be monitored through the corresponding changes in the scattering spectra of the incident nanowire surface plasmons. We also find that these changes can be further enhanced by changing the ratio of plasmon-site couplings. The change of the Fano lineshape in the scattering spectra further reveals that “site 5” in the FMO complex plays a distinct role from other sites. Our results provide a feasible way, using single photons, to detect mutation-induced, or bleaching-induced, local defects or modifications of the FMO complex, and allows access to both the local and global properties of the excitation transfer in such systems.

  15. Matthew Murray Commissioned to photograph eyewear brands, Chanel, Giorgio Armani, Hugo Boss, Jean Paul Gaultier for a fashion story in i-D magazine

    OpenAIRE

    Murray, Matthew

    2004-01-01

    Matthew Murray Commissioned to photograph an editorial spread of a variety of designer sunglasses for a fashion spread in i-D Magazine. The brief - to shot a fashion piece with a clear fashion narrative, using the personal photographic style of Matthew Murray. The models cast are everyday people - street cast and include a drag artist, a policeman, a hairdresser, a care assistant with her boxer dogs among others.

  16. Robustness, efficiency, and optimality in the Fenna-Matthews-Olson photosynthetic pigment-protein complex

    Energy Technology Data Exchange (ETDEWEB)

    Baker, Lewis A.; Habershon, Scott, E-mail: S.Habershon@warwick.ac.uk [Department of Chemistry and Centre for Scientific Computing, University of Warwick, Coventry CV4 7AL (United Kingdom)

    2015-09-14

    Pigment-protein complexes (PPCs) play a central role in facilitating excitation energy transfer (EET) from light-harvesting antenna complexes to reaction centres in photosynthetic systems; understanding molecular organisation in these biological networks is key to developing better artificial light-harvesting systems. In this article, we combine quantum-mechanical simulations and a network-based picture of transport to investigate how chromophore organization and protein environment in PPCs impacts on EET efficiency and robustness. In a prototypical PPC model, the Fenna-Matthews-Olson (FMO) complex, we consider the impact on EET efficiency of both disrupting the chromophore network and changing the influence of (local and global) environmental dephasing. Surprisingly, we find a large degree of resilience to changes in both chromophore network and protein environmental dephasing, the extent of which is greater than previously observed; for example, FMO maintains EET when 50% of the constituent chromophores are removed, or when environmental dephasing fluctuations vary over two orders-of-magnitude relative to the in vivo system. We also highlight the fact that the influence of local dephasing can be strongly dependent on the characteristics of the EET network and the initial excitation; for example, initial excitations resulting in rapid coherent decay are generally insensitive to the environment, whereas the incoherent population decay observed following excitation at weakly coupled chromophores demonstrates a more pronounced dependence on dephasing rate as a result of the greater possibility of local exciton trapping. Finally, we show that the FMO electronic Hamiltonian is not particularly optimised for EET; instead, it is just one of many possible chromophore organisations which demonstrate a good level of EET transport efficiency following excitation at different chromophores. Overall, these robustness and efficiency characteristics are attributed to the highly

  17. Near real-time forecasting for cholera decision making in Haiti after Hurricane Matthew.

    Science.gov (United States)

    Pasetto, Damiano; Finger, Flavio; Camacho, Anton; Grandesso, Francesco; Cohuet, Sandra; Lemaitre, Joseph C; Azman, Andrew S; Luquero, Francisco J; Bertuzzo, Enrico; Rinaldo, Andrea

    2018-05-01

    Computational models of cholera transmission can provide objective insights into the course of an ongoing epidemic and aid decision making on allocation of health care resources. However, models are typically designed, calibrated and interpreted post-hoc. Here, we report the efforts of a team from academia, field research and humanitarian organizations to model in near real-time the Haitian cholera outbreak after Hurricane Matthew in October 2016, to assess risk and to quantitatively estimate the efficacy of a then ongoing vaccination campaign. A rainfall-driven, spatially-explicit meta-community model of cholera transmission was coupled to a data assimilation scheme for computing short-term projections of the epidemic in near real-time. The model was used to forecast cholera incidence for the months after the passage of the hurricane (October-December 2016) and to predict the impact of a planned oral cholera vaccination campaign. Our first projection, from October 29 to December 31, predicted the highest incidence in the departments of Grande Anse and Sud, accounting for about 45% of the total cases in Haiti. The projection included a second peak in cholera incidence in early December largely driven by heavy rainfall forecasts, confirming the urgency for rapid intervention. A second projection (from November 12 to December 31) used updated rainfall forecasts to estimate that 835 cases would be averted by vaccinations in Grande Anse (90% Prediction Interval [PI] 476-1284) and 995 in Sud (90% PI 508-2043). The experience gained by this modeling effort shows that state-of-the-art computational modeling and data-assimilation methods can produce informative near real-time projections of cholera incidence. Collaboration among modelers and field epidemiologists is indispensable to gain fast access to field data and to translate model results into operational recommendations for emergency management during an outbreak. Future efforts should thus draw together multi

  18. Robustness, efficiency, and optimality in the Fenna-Matthews-Olson photosynthetic pigment-protein complex

    International Nuclear Information System (INIS)

    Baker, Lewis A.; Habershon, Scott

    2015-01-01

    Pigment-protein complexes (PPCs) play a central role in facilitating excitation energy transfer (EET) from light-harvesting antenna complexes to reaction centres in photosynthetic systems; understanding molecular organisation in these biological networks is key to developing better artificial light-harvesting systems. In this article, we combine quantum-mechanical simulations and a network-based picture of transport to investigate how chromophore organization and protein environment in PPCs impacts on EET efficiency and robustness. In a prototypical PPC model, the Fenna-Matthews-Olson (FMO) complex, we consider the impact on EET efficiency of both disrupting the chromophore network and changing the influence of (local and global) environmental dephasing. Surprisingly, we find a large degree of resilience to changes in both chromophore network and protein environmental dephasing, the extent of which is greater than previously observed; for example, FMO maintains EET when 50% of the constituent chromophores are removed, or when environmental dephasing fluctuations vary over two orders-of-magnitude relative to the in vivo system. We also highlight the fact that the influence of local dephasing can be strongly dependent on the characteristics of the EET network and the initial excitation; for example, initial excitations resulting in rapid coherent decay are generally insensitive to the environment, whereas the incoherent population decay observed following excitation at weakly coupled chromophores demonstrates a more pronounced dependence on dephasing rate as a result of the greater possibility of local exciton trapping. Finally, we show that the FMO electronic Hamiltonian is not particularly optimised for EET; instead, it is just one of many possible chromophore organisations which demonstrate a good level of EET transport efficiency following excitation at different chromophores. Overall, these robustness and efficiency characteristics are attributed to the highly

  19. Apuntes para la comprensión de "El descubrimiento de Harry", de Matthew Lipman

    Directory of Open Access Journals (Sweden)

    Diego Antonio Pineda Rivera

    2015-01-01

    Full Text Available Este trabajo recoge algunas ideas generales en torno a la novela de Matthew Lipman El descubrimiento de Harry. La pretensión del artículo es ofrecer "claves de lectura" que ayuden a los maestros que leen la novela, o la trabajan con su grupo de alumnos en un salón de clase, a comprender su significado filosófico. Para ello el artículo describe el contexto definido por las cuatro novelas del programa completo de "Filosofía para niños" que propone el autor y, a partir de allí, aborda cinco elementos que resultan orientadores para el lector potencial: cuál es el descubrimiento de Harry, la estructura teórica y narrativa de la novela, la relación de la lógica con otros problemas filosóficos, las "formas del pensamiento superior", y algunas sugerencias para trabajar la novela en el aula de clase. Recorre en el proceso aspectos propios de la filosofía que la novela asume, como las proposiciones categóricas, que constituyen el principal descubrimiento de Harry, la construcción del lenguaje de la lógica formal, los actos mentales y los mecanismos de validación de los razonamientos, así como la relación que se da entre pensamiento y lenguaje, y sus implicaciones en el abordaje de problemas desde los diversos ámbitos de la filosofía: cosmológicos, políticos, estéticos, epistemológicos, éticos, etc. 

  20. Apuntes para la comprensión de "El descubrimiento de Harry", de Matthew Lipman

    Directory of Open Access Journals (Sweden)

    Diego Antonio Pineda R.

    2015-01-01

    Full Text Available Este trabajo recoge algunas ideas generales en torno a la novela de Matthew Lipman El descubrimiento de Harry . La pretensión del artículo es ofrecer "claves de lectura" que ayuden a los maestros que leen la novela, o la trabajan con su grupo de alumnos en un salón de clase, a comprender su significado filosófico. Para ello el artículo describe el contexto definido por las cuatro novelas del programa completo de "Filosofía para niños" que propone el autor y, a partir de allí, aborda cinco elementos que resultan orientadores para el lector poten- cial: cuál es el descubrimiento de Harry, la estructura teórica y narrativa de la novela, la relación de la lógica con otros problemas filosóficos, las "formas del pensamiento superior", y algunas sugerencias para trabajar la novela en el aula de clase. Recorre en el proceso aspectos propios de la filosofía que la novela asume, como las proposiciones categóricas, que constituyen el principal descubrimiento de Harry, la construcción del lenguaje de la lógica formal, los actos mentales y los mecanismos de validación de los razonamientos, así como la relación que se da entre pensamiento y lenguaje, y sus implicaciones en el abordaje de problemas desde los diversos ámbitos de la filosofía: cosmológicos, políticos, estéticos, epistemológicos, éticos, etc.

  1. Book received: Towards a Science of Art History: J. J. Tikkanen and Art Historical Scholarship in Europe and The shaping of Art History in Finland

    OpenAIRE

    Publications of the Society of Art History in Finland

    2010-01-01

    Publications of the Society of Art History in Finland: Towards a Science of Art History: J. J. Tikkanen and Art Historical Scholarship in Europe and The shaping of Art History in Finland, Helsinki 2007 with tables of contents.

  2. The Matthew Effect and widely prescribed pharmaceuticals lacking environmental monitoring: case study of an exposure-assessment vulnerability.

    Science.gov (United States)

    Daughton, Christian G

    2014-01-01

    Assessing ambient exposure to chemical stressors often begins with time-consuming and costly monitoring studies to establish environmental occurrence. Both human and ecological toxicology are currently challenged by the unknowns surrounding low-dose exposure/effects, compounded by the reality that exposure undoubtedly involves mixtures of multiple stressors whose identities and levels can vary over time. Long absent from the assessment process, however, is whether the full scope of the identities of the stressors is sufficiently known. The Matthew Effect (a psychosocial phenomenon sometimes informally called the "bandwagon effect" or "iceberg effect," among others) may adversely bias or corrupt the exposure assessment process. The Matthew Effect is evidenced by decisions that base the selection of stressors to target in environmental monitoring surveys on whether they have been identified in prior studies, rather than considering the possibility that additional, but previously unreported, stressors might also play important roles in an exposure scenario. The possibility that the Matthew Effect might influence the scope of environmental stressor research is explored for the first time in a comprehensive case study that examines the preponderance of "absence of data" (in contrast to positive data and "data of absence") for the environmental occurrence of a very large class of potential chemical stressors associated with ubiquitous consumer use - active pharmaceutical ingredients (APIs). Comprehensive examination of the published data for an array of several hundred of the most frequently used drugs for whether their APIs are environmental contaminants provides a prototype example to catalyze discussion among the many disciplines involved with assessing risk. The findings could help guide the selection of those APIs that might merit targeting for environmental monitoring (based on the absence of data for environmental occurrence) as well as the prescribing of those

  3. Hurricane Matthew's Effects on Wetland Sources of Organic Matter to North Carolina Coastal Waters.

    Science.gov (United States)

    Rudolph, J. C.; Osburn, C. L.; Paerl, H. W.; Hounshell, A.

    2017-12-01

    Increased frequency and intensity of storm events such as tropical cyclones will have a major impact on estuarine and coastal biogeochemical cycling. Here, we determined the sources of dissolved and particulate organic matter (DOM and POM) as part of a larger study to quantify the short-term (several months) response of carbon and nitrogen cycling in the Neuse River Estuary-Pamlico Sound (NRE-PS) ecosystem to floodwaters associated with Hurricane Matthew. Sampling was conducted weekly in both the NRE-PS (October 2016 to January 2017), the Neuse River (NR) (October to December 2016) and in freshwater wetlands of the Neuse River above head of tide in March 2017. Specific ultraviolet (UV) absorbance at 254 nm (SUVA254) and stable carbon isotope ratios (δ13C-DOC) were used to determine the sources of DOM and POM transported to the NRE-PS in post-hurricane floodwaters. For DOM, SUVA254 values increased from 3.23 ±0.52 mg C L-1 m-1 in the NR to 4.14±0.52 mg C L-1 m-1 in the NRE and then declined to 3.63±0.32 mg C L-1 m-1 in PS. Combined with depleted δ13C-DOC values (-26 to -32‰) and elevated C:N values in the estuary and sound, these results confirm continued loading of fresh terrestrial organic matter into NRE-PS weeks after the storm. For POM, δ13C-POC and C:N ratio results likewise indicated a terrestrial source in floodwaters. SUVA254 values >3.5 mg C L-1 m-1 coupled with the depleted δ13C values and large C:N values were consistent with DOM primarily sourced from wetlands (e.g., wetland SUVA254 = 3.77±0.52 mg C L-1 m-1 in March 2017). We hypothesize that floodwaters connected riverine wetlands to the main channel of the NR, exporting DOM and POM into the NRE-PS. Our results indicate that upstream wetlands play a central and potentially significant role in organic matter enrichment and metabolism of estuarine and coastal waters, in light of increasing frequencies and intensities of tropical cyclones impacting coastal watersheds.

  4. 1st International Conference on Engineering and Applied Sciences Optimization : Dedicated to the Memory of Professor M.G. Karlaftis

    CERN Document Server

    Papadrakakis, Manolis; OPT-i

    2015-01-01

    The chapters which appear in this volume are selected studies presented at the First International Conference on Engineering and Applied Sciences Optimization (OPT-i), Kos, Greece, 4-6 June 2014,  and works written by friends, former colleagues and students of the late Professor M. G. Karlaftis; all in the area of optimization that he loved and published so much in himself. The subject areas represented here range from structural optimization, logistics, transportation, traffic and telecommunication networks to operational research, metaheuristics, multidisciplinary and multiphysics design optimization, etc.  This volume is dedicated to the life and the memory of Professor Matthew G. Karlaftis, who passed away a few hours before he was to give the opening speech at OPT-i. All contributions reflect the warmth and genuine friendship which he enjoyed from his associates and show how much his scientific contribution has been appreciated. He will be greatly missed and it is hoped that this volume will be receive...

  5. 洪堡與馬太之對決 Showdown between Humboldt and Matthew

    Directory of Open Access Journals (Sweden)

    張源泉 Yuan-Chuan Chang

    2015-06-01

    has an urgent need for highly educated specialists, higher education has become an emerging industry driving national economic growth. In response to the current situation, Germany has begun making fundamental reforms to its system of higher education. Universities in modern Germany have long subscribed to the ideal of Humboldtian homogeneity. However, in recent years the German government has implemented various measures designed to increase competition, based on the principle that the lion’s share of educational resources should be devoted to those with the most distinguished, the so-called Matthew effect. Framing the current state of higher education in Germany as a showdown between Humboldt and Matthew, in this paper I use document analysis to present the traditional ideal of homogeneity, discuss the measures recently adopted for increasing competition, and to investigate how much influence these measures have had on distinguished students and researchers. Traditionally as the hallmark of the Germany higher education, the Humboldtian model has come into being by the following factors: the legal structure, the regulations preventing the hiring of former students as teaching staff, the non-competitive allocations of funding in higher education, and the way in which the higher education system developed. However, due to such recent measures as the Excellence Initiative, performance-based budget allocations, and the ranking of universities, in recent years German universities have begun to emphasize the importance of differentiation and specialization, while homogeneity has begun to fall by the wayside. While some may see these changes as an actual paradigm shift, due to the continuing influence of the traditional system, as well as the limited effect of the differentiation measures, it is unlikely that the German system of higher education will become as hierarchically structured as ivy-league universities in the United States; instead, it’s more likely that

  6. Between the Mount of Transfiguration and Jerusalem and beyond: The chiastic structure of Matthew 17:14–20:34

    Directory of Open Access Journals (Sweden)

    Jacob J. Scholtz

    2017-05-01

    Full Text Available In this article, a chiastic structure in Matthew 17:14–20:34 is identified, evaluated and discussed. This structure highlights the movements of Jesus between the Mount of Transfiguration and Jerusalem as he is on his way to the cross to provide forgiveness of sins. However, this chiastic structure may also be considered in its wider, prophetic context. The structure of Matthew 17:14–20:34 fits into the larger thought or movement of Matthew 16:28–25:46. This shows Jesus’ movements from the Mount of Transfiguration to Jerusalem and beyond — not only during his first advent, but also at his second coming.

  7. Interpretation of the oratorio music "St. Matthew Passion" by the Metropolitan Hilarion (Alfeev in Pavel Semenovich Lungin's film "The Conductor"

    Directory of Open Access Journals (Sweden)

    Zaytseva Marina

    2016-07-01

    Full Text Available The article scientifically substantiates the value of the mass in the history of musical art. Genesis of the mass and its development as a leading spiritual vocal and choral genre of the European middle Ages and Renaissance are considered. The peculiarities of composition and musical language of the oratorio «St. Matthew Passion» by Metropolitan Hilarion are identified. It is proved that the formation of the logic of melodic development, composition and harmonic solutions of the oratorio has been influenced by the traditions of Western music. Factors here are the images, themes, and artistic techniques, which are taken from the Byzantine and Russian Church services. Analysis of music of Pavel Lungin's “The Conductor” has revealed the importance of the oratorio “St. Matthew Passion” by Metropolitan Hilarion to understand the meaning of the work. The interaction of the visual and auditory aspects leads to a polyphony of meanings. This polyphony enriches the understanding of works of art.

  8. Communications receivers principles and design

    CERN Document Server

    Rohde, Ulrich L; Zahnd, Hans

    2017-01-01

    This thoroughly updated guide offers comprehensive explanations of the science behind today’s radio receivers along with practical guidance on designing, constructing, and maintaining real-world communications systems. You will explore system planning, antennas and antenna coupling, amplifiers and gain control, filters, mixers, demodulation, digital communication, and the latest software defined radio (SDR) technology. Written by a team of telecommunication experts, Communications Receivers: Principles and Design, Fourth Edition, features technical illustrations, schematic diagrams, and detailed examples. Coverage includes: • Basic radio considerations • Radio receiver characteristics • Receiver system planning • Receiver implementation considerations • RF and baseband techniques for Software-Defined Radios • Transceiver SDR considerations • Antennas and antenna coupling • Mixers • Frequency sources and control • Ancillary receiver circuits • Performance measurement

  9. Examining the effects of hurricanes Matthew and Irma on water quality in the intracoastal waterway, St. Augustine, FL.

    Science.gov (United States)

    Ward, N. D.; Osborne, T.; Dye, T.; Julian, P.

    2017-12-01

    The last several years have been marked by a high incidence of Atlantic tropical cyclones making landfall as powerful hurricanes or tropical storms. For example, in 2016 Hurricane Matthew devastated parts of the Caribbean and the southeastern United States. In 2017, this region was further battered by hurricanes Irma and Maria. Here, we present water quality data collected in the intracoastal waterway near the Whitney Lab for Marine Bioscience during hurricanes Matthew and Irma, a region that experienced flooding during both storms. YSI Exo 2 sondes were deployed to measure pH, salinity, temperature, dissolved O2, fluorescent dissolved organic matter (fDOM), turbidity, and Chlorophyll-a (Chl-a) on a 15 minute interval. The Hurricane Matthew sonde deployment failed as soon as the storm hit, but revealed an interesting phenomenon leading up to the storm that was also observed during Irma. Salinity in the intracoastal waterway (off the Whitney Lab dock) typically varies from purely marine to 15-20 psu throughout the tidal cycle. However, several days before both storms approached the Florida coast (i.e. when they were near the Caribbean), the salinity signal became purely marine, overriding any tidal signal. Anecdotally, storm drains were already filled up to street level prior to the storm hitting, poising the region for immense flooding and storm surge. The opposite effect was observed after Irma moved past FL. Water became much fresher than normal for several days and it took almost a week to return to "normal" salinity tidal cycles. As both storms hit, turbidity increased by an order of magnitude for a several hour period. fDOM and O2 behaved similar to salinity during and after Irma, showing a mostly marine signal (e.g. higher O2, lower fDOM) in the lead up, and brief switch to more freshwater influence the week after the storm. Chl-a peaked several days after the storm, presumably due to mobilization of nutrient rich flood and waste waters and subsequent algae

  10. Communication dated 10 September 2008 received from the Permanent Mission of Egypt to the Agency concerning the High Level Policy Review Seminar of African Regional Cooperative Agreement for Research, Development and Training related to Nuclear Science and Technology (AFRA)

    International Nuclear Information System (INIS)

    2008-01-01

    The Secretariat has received a communication dated 10 September 2008 from the Permanent Mission of Egypt enclosing the documents of the High Level Policy Review Seminar of the African Regional Cooperative Agreement for Research, Development and Training related to Nuclear Science and Technology (AFRA) held in Aswan, Egypt on 28-29 November 2007. The communication, and as requested therein, the enclosures containing the Declaration of Aswan, the Aswan Action Plan and the Profile of the Regional Strategic Cooperative Framework (2008-2013) are circulated herewith for information

  11. "Freely Ye Have Received, Freely Give" (Matthew 10: 8)--How Giving Away Religious Digital Books Influences the Print Sales of Those Books

    Science.gov (United States)

    Hilton, John, III.

    2010-01-01

    Lack of access prevents many from benefiting from educational resources. Digital technologies now enable educational resources, such as books, to be openly available to those with access to the Internet. This study examined the financial viability of a religious publisher's putting free digital versions of eight of its books on the Internet. The…

  12. SPATIAL-TEMPORAL ANALYSIS OF OPENSTREETMAP DATA AFTER NATURAL DISASTERS: A CASE STUDY OF HAITI UNDER HURRICANE MATTHEW

    Directory of Open Access Journals (Sweden)

    J. Xu

    2017-09-01

    Full Text Available Volunteered geographic information (VGI has been widely adopted as an alternative for authoritative geographic information in disaster management considering its up-to-date data. OpenStreetMap, in particular, is now aiming at crisis mapping for humanitarian purpose. This paper illustrated that natural disaster played an essential role in updating OpenStreetMap data after Haiti was hit by Hurricane Matthew in October, 2016. Spatial-temporal analysis of updated OSM data was conducted in this paper. Correlation of features was also studied to figure out whether updates of data were coincidence or the results of the hurricane. Spatial pattern matched the damaged areas and temporal changes fitted the time when disaster occurred. High level of correlation values of features were recorded when hurricane occurred, suggesting that updates in data were led by the hurricane.

  13. Characterization of peak streamflows and flood inundation at selected areas in North Carolina following Hurricane Matthew, October 2016

    Science.gov (United States)

    Musser, Jonathan W.; Watson, Kara M.; Gotvald, Anthony J.

    2017-05-05

    The passage of Hurricane Matthew through central and eastern North Carolina during October 7–9, 2016, brought heavy rainfall, which resulted in major flooding. More than 15 inches of rain was recorded in some areas. More than 600 roads were closed, including Interstates 95 and 40, and nearly 99,000 structures were affected by floodwaters. Immediately following the flooding, the U.S. Geological Survey documented 267 high-water marks, of which 254 were surveyed. North Carolina Emergency Management documented and surveyed 353 high-water marks. Using a subset of these highwater marks, six flood-inundation maps were created for hard-hit communities. Digital datasets of the inundation areas, study reach boundary, and water-depth rasters are available for download. In addition, peak gage-height data, peak streamflow data, and annual exceedance probabilities (in percent) were determined for 24 U.S. Geological Survey streamgages located near the heavily flooded communities.

  14. Spatial-Temporal Analysis of Openstreetmap Data after Natural Disasters: a Case Study of Haiti Under Hurricane Matthew

    Science.gov (United States)

    Xu, J.; Li, L.; Zhou, Q.

    2017-09-01

    Volunteered geographic information (VGI) has been widely adopted as an alternative for authoritative geographic information in disaster management considering its up-to-date data. OpenStreetMap, in particular, is now aiming at crisis mapping for humanitarian purpose. This paper illustrated that natural disaster played an essential role in updating OpenStreetMap data after Haiti was hit by Hurricane Matthew in October, 2016. Spatial-temporal analysis of updated OSM data was conducted in this paper. Correlation of features was also studied to figure out whether updates of data were coincidence or the results of the hurricane. Spatial pattern matched the damaged areas and temporal changes fitted the time when disaster occurred. High level of correlation values of features were recorded when hurricane occurred, suggesting that updates in data were led by the hurricane.

  15. St. Matthew Island reindeer crash revisited: Their demise was not nigh—but then, why did they die?

    Directory of Open Access Journals (Sweden)

    Frank L. Miller

    2005-05-01

    Full Text Available Twenty-nine yearling reindeer (Rangifer tarandus were released on St. Matthew Island in the Bering Sea Wildlife Refuge in 1944: 24 females and five males. They were reported to have increased to 1350 reindeer by summer 1957 and to 6000 by summer 1963. The 6000 reindeer on St. Matthew Island in summer 1963 were then reduced by 99% to 42 by summer 1966. The evidence suggests that after growing at a high average annual rate of lamda = 1.32 for 19 years, the entire die-off occurred in winter 1963—64, making it the largest single-year crash ever recorded in any R. tarandus population. Although a supposedly meaningful decline in successful reproduction and early survival of calves was originally reported for the population between 1957 and 1963, our reevaluation indicates this is an error resulting from the wrong sample being used in the between-year comparison. The quantitative data indicate no meaningful change occurred, and the calf:cow ratio was about 60 calves:100 cows in both 1957 and 1963. Calf production and survival were high up to the crash, and in the die-off population the age distribution (72%, 1—3 years old and the sex ratio (69 males:100 females reflected a still fast-growing R. tarandus population. All of these parameters do not support the hypothesis that the limited abundance of the absolute food supply was at a lethal level between 1957 and 1963 or in winter 1963—64. We now know from other studies that a high density of R. tarandus is not a prerequisite for a major single-year winter die-off. Existing population dynamics data do not support lack of lichens as a major causative factor in this single-year crash. If a decline had been caused by the limitation of the absolute food supply, it would have followed a multi-year pattern—it would not have been a single-year event. There was no evidence of a sudden, massive, island-wide loss of the absolute food supply, or that its nutritional value was inadequate for sustaining the

  16. Modelling of oscillations in two-dimensional echo-spectra of the Fenna-Matthews-Olson complex

    International Nuclear Information System (INIS)

    Hein, Birgit; Kreisbeck, Christoph; Kramer, Tobias; Rodríguez, Mirta

    2012-01-01

    Recent experimental observations of time-dependent beatings in the two-dimensional echo-spectra of light-harvesting complexes at ambient temperatures have opened up the question of whether coherence and wave-like behaviour play a significant role in photosynthesis. We carry out a numerical study of the absorption and echo-spectra of the Fenna-Matthews-Olson (FMO) complex in Chlorobium tepidum and analyse the requirements in the theoretical model needed to reproduce beatings in the calculated spectra. The energy transfer in the FMO pigment-protein complex is theoretically described by an exciton Hamiltonian coupled to a phonon bath which accounts for the pigments' electronic and vibrational excitations, respectively. We use the hierarchical equations of motions method to treat the strong couplings in a non-perturbative way. We show that the oscillations in the two-dimensional echo-spectra persist in the presence of thermal noise and static disorder. (paper)

  17. Nonlinear network model analysis of vibrational energy transfer and localisation in the Fenna-Matthews-Olson complex

    Science.gov (United States)

    Morgan, Sarah E.; Cole, Daniel J.; Chin, Alex W.

    2016-11-01

    Collective protein modes are expected to be important for facilitating energy transfer in the Fenna-Matthews-Olson (FMO) complex of photosynthetic green sulphur bacteria, however to date little work has focussed on the microscopic details of these vibrations. The nonlinear network model (NNM) provides a computationally inexpensive approach to studying vibrational modes at the microscopic level in large protein structures, whilst incorporating anharmonicity in the inter-residue interactions which can influence protein dynamics. We apply the NNM to the entire trimeric FMO complex and find evidence for the existence of nonlinear discrete breather modes. These modes tend to transfer energy to the highly connected core pigments, potentially opening up alternative excitation energy transfer routes through their influence on pigment properties. Incorporating localised modes based on these discrete breathers in the optical spectra calculations for FMO using ab initio site energies and excitonic couplings can substantially improve their agreement with experimental results.

  18. Electronic warfare receivers and receiving systems

    CERN Document Server

    Poisel, Richard A

    2014-01-01

    Receivers systems are considered the core of electronic warfare (EW) intercept systems. Without them, the fundamental purpose of such systems is null and void. This book considers the major elements that make up receiver systems and the receivers that go in them.This resource provides system design engineers with techniques for design and development of EW receivers for modern modulations (spread spectrum) in addition to receivers for older, common modulation formats. Each major module in these receivers is considered in detail. Design information is included as well as performance tradeoffs o

  19. science

    International Development Research Centre (IDRC) Digital Library (Canada)

    David Spurgeon

    Give us the tools: science and technology for development. Ottawa, ...... altered technical rela- tionships among the factors used in the process of production, and the en- .... to ourselves only the rights of audit and periodic substantive review." If a ...... and destroying scarce water reserves, recreational areas and a generally.

  20. Receiver Test Selection Criteria

    Science.gov (United States)

    2015-03-12

    The DOT requests that GPS manufacturers submit receivers for test in the following TWG categories: - Aviation (non-certified), cellular, general location/navigation, high precision, timing, networks, and space-based receivers - Each receiver should b...

  1. Coherent wavepackets in the Fenna-Matthews-Olson complex are robust to excitonic-structure perturbations caused by mutagenesis

    Science.gov (United States)

    Maiuri, Margherita; Ostroumov, Evgeny E.; Saer, Rafael G.; Blankenship, Robert E.; Scholes, Gregory D.

    2018-02-01

    Femtosecond pulsed excitation of light-harvesting complexes creates oscillatory features in their response. This phenomenon has inspired a large body of work aimed at uncovering the origin of the coherent beatings and possible implications for function. Here we exploit site-directed mutagenesis to change the excitonic level structure in Fenna-Matthews-Olson (FMO) complexes and compare the coherences using broadband pump-probe spectroscopy. Our experiments detect two oscillation frequencies with dephasing on a picosecond timescale—both at 77 K and at room temperature. By studying these coherences with selective excitation pump-probe experiments, where pump excitation is in resonance only with the lowest excitonic state, we show that the key contributions to these oscillations stem from ground-state vibrational wavepackets. These experiments explicitly show that the coherences—although in the ground electronic state—can be probed at the absorption resonances of other bacteriochlorophyll molecules because of delocalization of the electronic excitation over several chromophores.

  2. Nicole Matthews & Nickianne Moody, eds., Judging a Book by Its Cover: Fans, Publishers, Designers, and the Marketing of Fiction.

    Directory of Open Access Journals (Sweden)

    Thomas Van Parys

    2010-01-01

    Full Text Available

     

    Judging a Book by Its Cover: Fans, Publishers, Designers, and the Marketing of Fiction

    Nicole Matthews & Nickianne Moody, eds.,

     

    Judging a Book by Its Cover: Fans, Publishers, Designers, and the Marketing of Fiction. Aldershot/Burlington: Ashgate, 2007.

    ISBN: 978-0-7546-5731-6

  3. Do not worry in Kinywang’anga: Reading Matthew 6:25–34 in a Tanzanian village

    Directory of Open Access Journals (Sweden)

    Sakari Häkkinen

    2011-04-01

    Full Text Available One of the presumptions of this article is that most of the people in the nascent ‘Christian’ communities were ordinary people struggling with questions of living under harsh conditions in a country that was occupied by an enemy force. Another presumption is that the history of these ordinary people from antiquity needs to be heard. The article aimed, with the help of archaeology, cultural anthropology, social history of antiquity, literature of the time as well as other disciplines, to create a social context of Jesus and his disciples. The article approached the Gospels in the New Testament from the poor, the majority of people living in the 1st century Roman Empire. It gives a brief analysis of one of the poverty texts, namely Matthew 6:25–34. By means of interviews, stories of villagers in Tanzania, as well as their interpretations of the Gospel texts, have been documented. The people of Kinywang’anga serve as a test case for reading the ‘do not worry’ exhortation in the Matthean passage.

  4. Reviews Book: SEP Communications: Transmitting and Receiving Signals Book: Gliding for Gold Book: Radioactivity: A History of a Mysterious Science Book: The New Quantum Age Books: The Art of Science and The Oxford Book of Modern Science Writing Equipment: SEP Analogue/digital transmission unit Equipment: SEP Optical signal transmission set Book: Stars and their Spectra Book: Voicebox: The Physics and Evolution of Speech Web Watch

    Science.gov (United States)

    2012-03-01

    WE RECOMMEND Transmitting and Receiving Signals SEP booklet transmits knowledge The New Quantum Age Understanding modern quantum theory The Art of Science and The Oxford Book of Modern Science Writing Anthologies bring science to life SEP Analogue/digital transmission unit Kit transmits signal between two points SEP Optical signal transmission set Optical kit shows light transmission Stars and their Spectra New book for teaching astrophysics WORTH A LOOK Gliding for Gold Take a journey through the physics of winter sports Radioactivity: A History of a Mysterious Science Book looks at history of radioactivity Voicebox: The Physics and Evolution of Speech TExploring the evolution of the voice WEB WATCH An interactive program with promise?

  5. A flexible WLAN receiver

    NARCIS (Netherlands)

    Schiphorst, Roelof; Hoeksema, F.W.; Slump, Cornelis H.

    2003-01-01

    Flexible radio receivers are also called Software Defined Radios (SDRs) [1], [2]. The focus of our SDR project [3] is on designing the front end, from antenna to demodulation in bits, of a °exible, multi-standard WLAN receiver. We try to combine an instance of a (G)FSK receiver (Bluetooth) with an

  6. Observations and operational model simulations reveal the impact of Hurricane Matthew (2016) on the Gulf Stream and coastal sea level

    Science.gov (United States)

    Ezer, Tal; Atkinson, Larry P.; Tuleya, Robert

    2017-12-01

    In October 7-9, 2016, Hurricane Matthew moved along the southeastern coast of the U.S., causing major flooding and significant damage, even to locations farther north well away from the storm's winds. Various observations, such as tide gauge data, cable measurements of the Florida Current (FC) transport, satellite altimeter data and high-frequency radar data, were analyzed to evaluate the impact of the storm. The data show a dramatic decline in the FC flow and increased coastal sea level along the U.S. coast. Weakening of the Gulf Stream (GS) downstream from the storm's area contributed to high coastal sea levels farther north. Analyses of simulations of an operational hurricane-ocean coupled model reveal the disruption that the hurricane caused to the GS flow, including a decline in transport of ∼20 Sv (1 Sv = 106 m3 s-1). In comparison, the observed FC reached a maximum transport of ∼40 Sv before the storm on September 10 and a minimum of ∼20 Sv after the storm on October 12. The hurricane impacts both the geostrophic part of the GS and the wind-driven currents, generating inertial oscillations with velocities of up to ±1 m s-1. Analysis of the observed FC transport since 1982 indicated that the magnitude of the current weakening in October 2016 was quite rare (outside 3 standard deviations from the mean). Such a large FC weakening in the past occurred more often in October and November, but is extremely rare in June-August. Similar impacts on the FC from past tropical storms and hurricanes suggest that storms may contribute to seasonal and interannual variations in the FC. The results also demonstrated the extended range of coastal impacts that remote storms can cause through their influence on ocean currents.

  7. Highly Sensitive Optical Receivers

    CERN Document Server

    Schneider, Kerstin

    2006-01-01

    Highly Sensitive Optical Receivers primarily treats the circuit design of optical receivers with external photodiodes. Continuous-mode and burst-mode receivers are compared. The monograph first summarizes the basics of III/V photodetectors, transistor and noise models, bit-error rate, sensitivity and analog circuit design, thus enabling readers to understand the circuits described in the main part of the book. In order to cover the topic comprehensively, detailed descriptions of receivers for optical data communication in general and, in particular, optical burst-mode receivers in deep-sub-µm CMOS are presented. Numerous detailed and elaborate illustrations facilitate better understanding.

  8. Delphi Accounts Receivable Module -

    Data.gov (United States)

    Department of Transportation — Delphi accounts receivable module contains the following data elements, but are not limited to customer information, cash receipts, line of accounting details, bill...

  9. Hurricane Matthew (2016) and its Storm Surge Inundation under Global Warming Scenarios: Application of an Interactively Coupled Atmosphere-Ocean Model

    Science.gov (United States)

    Jisan, M. A.; Bao, S.; Pietrafesa, L.; Pullen, J.

    2017-12-01

    An interactively coupled atmosphere-ocean model was used to investigate the impacts of future ocean warming, both at the surface and the layers below, on the track and intensity of a hurricane and its associated storm surge and inundation. The category-5 hurricane Matthew (2016), which made landfall on the South Carolina coast of the United States, was used for the case study. Future ocean temperature changes and sea level rise (SLR) were estimated based on the projection of Inter-Governmental Panel on Climate Change (IPCC)'s Representative Concentration Pathway scenarios RCP 2.6 and RCP 8.5. After being validated with the present-day observational data, the model was applied to simulate the changes in track, intensity, storm surge and inundation that Hurricane Matthew would cause under future climate change scenarios. It was found that a significant increase in hurricane intensity, storm surge water level, and inundation area for Hurricane Matthew under future ocean warming and SLR scenarios. For example, under the RCP 8.5 scenario, the maximum wind speed would increase by 17 knots (14.2%), the minimum sea level pressure would decrease by 26 hPa (2.85%), and the inundated area would increase by 401 km2 (123%). By including the effect of SLR for the middle-21st-century scenario, the inundated area will further increase by up to 49.6%. The increase in the hurricane intensity and the inundated area was also found for the RCP 2.6 scenario. The response of sea surface temperature was analyzed to investigate the change in intensity. A comparison was made between the impacts when only the sea surface warming is considered versus when both the sea surface and the underneath layers are considered. These results showed that even without the effect of SLR, the storm surge level and the inundated area would be higher due to the increased hurricane intensity under the influence of the future warmer ocean temperature. The coupled effect of ocean warming and SLR would cause the

  10. matthew 28:19

    African Journals Online (AJOL)

    2010-03-05

    –93; Viljoen 2007:259). Scholars have noticed the co-existence of universalism and particularism (Guthrie 1990:29–30). Readers too would have been prepared regarding this matter (Hubbard 1974:86). For example, we may ...

  11. Matthew M. Yung | NREL

    Science.gov (United States)

    pertaining to biomass and transformation to fuels and chemicals. As part of the NBC, Yung's projects include vapor phase upgrading Thermochemical Process Integration, Scale-Up, and Piloting Education M.B.A ;Transformation of Sulfur Species During Steam/Air Regeneration on a Ni Biomass Conditioning Catalyst," ACS

  12. Matthew Oliver | NREL

    Science.gov (United States)

    used for ex situ vapor-phase upgrading or steam reforming with continuous catalyst regeneration. Get more information about NREL's Thermochemical Processes. Research Interests Integration and scale up of biomass to fuels and chemicals Affiliated Research Programs Thermochemical Process Integration, Scale-Up

  13. Solar energy receiver

    Science.gov (United States)

    Schwartz, Jacob

    1978-01-01

    An improved long-life design for solar energy receivers provides for greatly reduced thermally induced stress and permits the utilization of less expensive heat exchanger materials while maintaining receiver efficiencies in excess of 85% without undue expenditure of energy to circulate the working fluid. In one embodiment, the flow index for the receiver is first set as close as practical to a value such that the Graetz number yields the optimal heat transfer coefficient per unit of pumping energy, in this case, 6. The convective index for the receiver is then set as closely as practical to two times the flow index so as to obtain optimal efficiency per unit mass of material.

  14. Cryogenic microwave channelized receiver

    International Nuclear Information System (INIS)

    Rauscher, C.; Pond, J.M.; Tait, G.B.

    1996-01-01

    The channelized receiver being presented demonstrates the use of high temperature superconductor technology in a microwave system setting where superconductor, microwave-monolithic-integrated-circuit, and hybrid-integrated-circuit components are united in one package and cooled to liquid-nitrogen temperatures. The receiver consists of a superconducting X-band four-channel demultiplexer with 100-MHz-wide channels, four commercial monolithically integrated mixers, and four custom-designed hybrid-circuit detectors containing heterostructure ramp diodes. The composite receiver unit has been integrated into the payload of the second-phase NRL high temperature superconductor space experiment (HTSSE-II). Prior to payload assembly, the response characteristics of the receiver were measured as functions of frequency, temperature, and drive levels. The article describes the circuitry, discusses the key issues related to design and implementation, and summarizes the experimental results

  15. Alexandrite Lidar Receiver

    National Research Council Canada - National Science Library

    Wilkerson, Thomas

    2000-01-01

    ...". The chosen vendor, Orca Photonics, In. (Redmond, WA), in close collaboration with USU personnel, built a portable, computerized lidar system that not only is suitable as a receiver for a near IR alexandrite laser, but also contains an independent Nd...

  16. Theoretical strengthening of the concept of appealing in analysed sermons on Matthew 25:31–46 in the context of poverty in South Africa

    Directory of Open Access Journals (Sweden)

    Hennie J.C. Pieterse

    2013-08-01

    Full Text Available From a qualitative grounded theory analysis in a sample of 26 sermons with Matthew 25:31–46 as sermon text, a rhetorical structure of how the preachers try to convince their listeners to care for the poor emerged. The homiletical concept of appealingrelated to all the categories borne out of the analysis of the inner world of the 26 sermons, and also to the categories showing this rhetorical structure in the sermons. The article discusses what the dimensions are in the concept of appealingborne out of the sermons in which the rhetorical structure was apparent, which rhetorical theory would fit as theoretical base for the concept of appealing in its relationship with the rhetorical structure in the sermons, and what dilemma the preachers face when they try to convince their listeners to participate in the care for the poor. The rhetorical theory of deliberative rhetoric (Aristotle and the classical theory with the three dimensions logos, ethosand pathosis discussed in this article as theoretical thickening of the concept of appealingto the listeners of the sermons. This article attempts to demonstrate how to go about theorising from a grounded theory analysis of sermons with Matthew 25:31–46 as a sermon text with, as result, a theory that could help preachers in preaching from this text in the context of poverty in South Africa.

  17. Receiver Gain Modulation Circuit

    Science.gov (United States)

    Jones, Hollis; Racette, Paul; Walker, David; Gu, Dazhen

    2011-01-01

    A receiver gain modulation circuit (RGMC) was developed that modulates the power gain of the output of a radiometer receiver with a test signal. As the radiometer receiver switches between calibration noise references, the test signal is mixed with the calibrated noise and thus produces an ensemble set of measurements from which ensemble statistical analysis can be used to extract statistical information about the test signal. The RGMC is an enabling technology of the ensemble detector. As a key component for achieving ensemble detection and analysis, the RGMC has broad aeronautical and space applications. The RGMC can be used to test and develop new calibration algorithms, for example, to detect gain anomalies, and/or correct for slow drifts that affect climate-quality measurements over an accelerated time scale. A generalized approach to analyzing radiometer system designs yields a mathematical treatment of noise reference measurements in calibration algorithms. By treating the measurements from the different noise references as ensemble samples of the receiver state, i.e. receiver gain, a quantitative description of the non-stationary properties of the underlying receiver fluctuations can be derived. Excellent agreement has been obtained between model calculations and radiometric measurements. The mathematical formulation is equivalent to modulating the gain of a stable receiver with an externally generated signal and is the basis for ensemble detection and analysis (EDA). The concept of generating ensemble data sets using an ensemble detector is similar to the ensemble data sets generated as part of ensemble empirical mode decomposition (EEMD) with exception of a key distinguishing factor. EEMD adds noise to the signal under study whereas EDA mixes the signal with calibrated noise. It is mixing with calibrated noise that permits the measurement of temporal-functional variability of uncertainty in the underlying process. The RGMC permits the evaluation of EDA by

  18. News Workshop: Getting the measure of space Conference: Respecting the evidence receives a great response Event: Communities meet to stimulate science in Wales Teachers: A day to polish up on A-level practicals Development: Exhilarating physics CPD day is a hit in London Lecture: The universe as a classroom

    Science.gov (United States)

    2013-07-01

    Workshop: Getting the measure of space Conference: Respecting the evidence receives a great response Event: Communities meet to stimulate science in Wales Teachers: A day to polish up on A-level practicals Development: Exhilarating physics CPD day is a hit in London Lecture: The universe as a classroom

  19. [Analysis of projects received and funded in fields of emergency and intensive care medicine/trauma/burns/plastic surgery from National Natural Science Foundation of China during 2010-2013].

    Science.gov (United States)

    Xiong, Kun; Wang, Linlin; Chen, Xulin; Cao, Yongqian; Xiang, Chuan; Xue, Lixiang; Yan, Zhangcai

    2014-01-01

    To summarized the projects received and funded in the fields of emergency and intensive care medicine/trauma/burns/plastic surgery from National Natural Science Foundation of China (NSFC) during 2010-2013, put forward the thinking and perspective of this future trend in these fields. The number of the funded project and total funding in the fields of emergency and intensive care medicine/trauma/burns/plastic surgery from NSFC during 2010-2013 had been statistical analyzed, in the meantime, the overview situation of various branches in basic research and further preliminary analysis the research frontier and hot issues have been analyzed. (1) The number of funded project were 581 in H15 of NSFC during 2010-2013, total funding reached to 277.13 million RMB, including 117 projects in H1511 (emergency and intensive care medicine/trauma/burns/plastic surgery and other science issue), 96 projects in H1507 (wound healing and scar), 88 projects in H1502 (multi-organ failure), 71 projects in H1505 (burn), 61 projects in H1504 (trauma). (2) The top 10 working unit for project funding in the field of emergency and intensive care medicine/trauma/burns/plastic surgery present as Third Military Medical University (70), Shanghai Jiao tong University (69), Second Military Medical University (40), Chinese PLA General Hospital (36), Forth Military Medical University (35), Zhejiang University (22), Sun Yat-Sen University (18), Southern Medical University (14), China Medical University (11), Capital Medical University (11) respectively, the number of funded project positive correlated with funding. (3) The funded research field in H15 covered almost all important organs and system injury or repair research, our scientists reached a fairly high level in some research field, for example, sepsis, trauma, repair, et al. "Sepsis" was funded 112 projects in H15 for 4 years, the growth rate became rapid and stable comparing to shock, burns and cardiopulmonary resuscitation funded projects

  20. 'Chaos' in superregenerative receivers

    International Nuclear Information System (INIS)

    Commercon, Jean-Claude; Badard, Robert

    2005-01-01

    The superregenerative principle has been known since the early 1920s. The circuit is extremely simple and extremely sensitive. Today, superheterodyne receivers generally supplant superregenerative receivers in most applications because there are several undesirable characteristics: poor selectivity, reradiation, etc. Superregenerative receivers undergo a revival in recent papers for wireless systems, where low cost and very low power consumption are relevant: house/building meters (such as water, energy, gas counter), personal computer environment (keyboard, mouse), etc. Another drawback is the noise level which is higher than that of a well-designed superheterodyne receiver; without an antenna input signal, the output of the receiver hears in an earphone as a waterfall noise; this sound principally is the inherent input noise amplified and detected by the circuit; however, when the input noise is negligible with respect of an antenna input signal, we are faced to an other source of 'noise' self-generated by the superregenerative working. The main objective of this paper concerns this self-generated noise coming from an exponential growing followed by a re-injection process for which the final state is a function of the phase of the input signal

  1. Solar thermal central receivers

    International Nuclear Information System (INIS)

    Vant-Hull, L.L.

    1993-01-01

    Market issues, environmental impact, and technology issues related to the Solar Central Receiver concept are addressed. The rationale for selection of the preferred configuration and working fluid are presented as the result of a joint utility-industry analysis. A $30 million conversion of Solar One to an external molten salt receiver would provide the intermediate step to a commercial demonstration plant. The first plant in this series could produce electricity at 11.2 cents/kWhr and the seventh at 8.2 cents/kWhr, completely competitive with projected costs of new utility plants in 1992

  2. Wideband CMOS receivers

    CERN Document Server

    Oliveira, Luis

    2015-01-01

    This book demonstrates how to design a wideband receiver operating in current mode, in which the noise and non-linearity are reduced, implemented in a low cost single chip, using standard CMOS technology.  The authors present a solution to remove the transimpedance amplifier (TIA) block and connect directly the mixer’s output to a passive second-order continuous-time Σ∆ analog to digital converter (ADC), which operates in current-mode. These techniques enable the reduction of area, power consumption, and cost in modern CMOS receivers.

  3. Receiver gain function: the actual NMR receiver gain

    OpenAIRE

    Mo, Huaping; Harwood, John S.; Raftery, Daniel

    2010-01-01

    The observed NMR signal size depends on the receiver gain parameter. We propose a receiver gain function to characterize how much the raw FID is amplified by the receiver as a function of the receiver gain setting. Although the receiver is linear for a fixed gain setting, the actual gain of the receiver may differ from what the gain setting suggests. Nevertheless, for a given receiver, we demonstrate that the receiver gain function can be calibrated. Such a calibration enables accurate compar...

  4. Campus Projects Receiving "Earmarks."

    Science.gov (United States)

    Schonberger, Benjamin

    1991-01-01

    Specific campus projects that Congress has directed federal agencies to support this year at over 120 colleges and universities are listed. The agencies neither requested support nor sponsored merit-based competitions for the awards. In some cases, the institutions have a history of receiving special federal treatment. (MSE)

  5. Optimization of Passive Coherent Receiver System Placement

    Science.gov (United States)

    2013-09-01

    spheroid object with a constant radar cross section (RCS). Additionally, the receiver and transmitters are assumed to be notional isotropic antennae...software- defined radio for equatorial plasma instability studies,” Radio Science, vol. 48, pp. 1–11. Aug. 2013. [2] P. C. Zhang and B. Y. Li, “Passive

  6. 78 FR 56744 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978

    Science.gov (United States)

    2013-09-13

    ... requiring special protection. The regulations establish such a permit system to designate Antarctic... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 AGENCY: National Science Foundation. ACTION: Notice of Permit Applications Received...

  7. 77 FR 38834 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978

    Science.gov (United States)

    2012-06-29

    ... requiring special protection. The regulations establish such a permit system to designate Antarctic... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 AGENCY: National Science Foundation. ACTION: Notice of permit applications received...

  8. Does immigration have a Matthew Effect? A cross-national analysis of international migration and international income inequality, 1960-2005.

    Science.gov (United States)

    Sanderson, Matthew R

    2013-05-01

    This paper empirically assesses how immigration affects international inequality by testing the relationship between immigration and national economic development across countries in different world income groups. A series of cross-national, longitudinal analyses demonstrate that, on average, immigration has a rather small, but positive long-term effect on development levels. However, the findings also indicate that immigration has a Matthew Effect (Merton, 1968) in the world-economy: immigration disproportionately benefits higher-income countries. Moreover, the wealthiest countries reap the largest gains from immigration. Thus, from the perspective of destination countries, immigration does not appear to be a panacea for international inequality. Instead, the results indicate that immigration actually reproduces, and even exacerbates, international inequality. Copyright © 2012 Elsevier Inc. All rights reserved.

  9. An efficient method to calculate excitation energy transfer in light-harvesting systems: application to the Fenna-Matthews-Olson complex

    International Nuclear Information System (INIS)

    Ritschel, Gerhard; Roden, Jan; Eisfeld, Alexander; Strunz, Walter T

    2011-01-01

    A master equation derived from non-Markovian quantum state diffusion is used to calculate the excitation energy transfer in the photosynthetic Fenna-Matthews-Olson pigment-protein complex at various temperatures. This approach allows us to treat spectral densities that explicitly contain the coupling to internal vibrational modes of the chromophores. Moreover, the method is very efficient and as a result the transfer dynamics can be calculated within about 1 min on a standard PC, making systematic investigations w.r.t. parameter variations tractable. After demonstrating that our approach is able to reproduce the results of the numerically exact hierarchical equations of motion approach, we show how the inclusion of vibrational modes influences the transfer. (paper)

  10. Interviews with information receivers

    International Nuclear Information System (INIS)

    1997-11-01

    The Waste Policy Institute (WPI), through a cooperative agreement with the U.S. Department of Energy's (DOE) Office of Science and Technology (OST), conducted telephone interviews with people who requested OST publications to better understand why they wanted information from OST, how they used the information, and whether the information met their needs. Researchers selected 160 people who requested one of the two OST publications-either the Technology Summary Series (Rainbow Books) or the Initiatives newsletter. Of the 160 selected, interviewers spoke with 79 people nationwide representing six stakeholder audience categories

  11. Digital Receiver Phase Meter

    Science.gov (United States)

    Marcin, Martin; Abramovici, Alexander

    2008-01-01

    The software of a commercially available digital radio receiver has been modified to make the receiver function as a two-channel low-noise phase meter. This phase meter is a prototype in the continuing development of a phase meter for a system in which radiofrequency (RF) signals in the two channels would be outputs of a spaceborne heterodyne laser interferometer for detecting gravitational waves. The frequencies of the signals could include a common Doppler-shift component of as much as 15 MHz. The phase meter is required to measure the relative phases of the signals in the two channels at a sampling rate of 10 Hz at a root power spectral density measurements in laser metrology of moving bodies. To illustrate part of the principle of operation of the phase meter, the figure includes a simplified block diagram of a basic singlechannel digital receiver. The input RF signal is first fed to the input terminal of an analog-to-digital converter (ADC). To prevent aliasing errors in the ADC, the sampling rate must be at least twice the input signal frequency. The sampling rate of the ADC is governed by a sampling clock, which also drives a digital local oscillator (DLO), which is a direct digital frequency synthesizer. The DLO produces samples of sine and cosine signals at a programmed tuning frequency. The sine and cosine samples are mixed with (that is, multiplied by) the samples from the ADC, then low-pass filtered to obtain in-phase (I) and quadrature (Q) signal components. A digital signal processor (DSP) computes the ratio between the Q and I components, computes the phase of the RF signal (relative to that of the DLO signal) as the arctangent of this ratio, and then averages successive such phase values over a time interval specified by the user.

  12. Pressure difference receiving ears

    DEFF Research Database (Denmark)

    Michelsen, Axel; Larsen, Ole Næsbye

    2007-01-01

    Directional sound receivers are useful for locating sound sources, and they can also partly compensate for the signal degradations caused by noise and reverberations. Ears may become inherently directional if sound can reach both surfaces of the eardrum. Attempts to understand the physics...... of the eardrum. The mere existence of sound transmission to the inner surface does not ensure a useful directional hearing, since a proper amplitude and phase relationship must exist between the sounds acting on the two surfaces of the eardrum. The gain of the sound pathway must match the amplitude and phase...... of the sounds at the outer surfaces of the eardrums, which are determined by diffraction and by the arrival time of the sound, that is by the size and shape of the animal and by the frequency of sound. Many users of hearing aids do not obtain a satisfactory improvement of their ability to localize sound sources...

  13. Solar thermal energy receiver

    Science.gov (United States)

    Baker, Karl W. (Inventor); Dustin, Miles O. (Inventor)

    1992-01-01

    A plurality of heat pipes in a shell receive concentrated solar energy and transfer the energy to a heat activated system. To provide for even distribution of the energy despite uneven impingement of solar energy on the heat pipes, absence of solar energy at times, or failure of one or more of the heat pipes, energy storage means are disposed on the heat pipes which extend through a heat pipe thermal coupling means into the heat activated device. To enhance energy transfer to the heat activated device, the heat pipe coupling cavity means may be provided with extensions into the device. For use with a Stirling engine having passages for working gas, heat transfer members may be positioned to contact the gas and the heat pipes. The shell may be divided into sections by transverse walls. To prevent cavity working fluid from collecting in the extensions, a porous body is positioned in the cavity.

  14. CERN apprentice receives award

    CERN Multimedia

    2008-01-01

    Another CERN apprentice has received an award for the quality of his work. Stéphane Küng (centre), at the UIG ceremony last November, presided over by Geneva State Councillor Pierre-François Unger, Head of the Department of Economics and Health. Electronics technician Stéphane Küng was honoured in November by the Social Foundation of the Union Industrielle Genevoise (UIG) as one of Geneva’s eight best apprentices in the field of mechatronics. The 20-year-old Genevan obtained his Federal apprentice’s certificate (Certificat fédéral de capacité - CFC) in June 2007, achieving excellent marks in his written tests at the Centre d’Enseignement Professionnel Technique et Artisanal (CEPTA). Like more than 200 youngsters before him, Stéphane Küng spent part of his four-year sandwich course working at CERN, where he followed many practical training courses and gained valuable hands-on experience in various technical groups and labs. "It’ always very gr...

  15. NWWA Science Award given

    Science.gov (United States)

    Back, Bill

    John G. Ferris, a U.S. Geological Survey retiree, received the National Water Well Association (NWWA) Science Award for 1985 on September 10, 1985, in Baltimore, Md. The award recognizes Ferris's renowned contributions to the science of groundwater.

  16. Thinking and meddling with boundaries: Critical reflections on Matthew Weinstein's narrative of street medics, red-zones and glop

    Science.gov (United States)

    Alsop, Steve

    2015-03-01

    In pursuit of more mindful notions of hybridity, this review essay provides a series of reflections on Mathew Weinstein's representations of Street Medics and `sciences for the red zones of neoliberalism'. My analysis draws on three popular ways of thinking with boundaries to offer a critical reading of the boundary-work that the essay performs with respect to three dialectics: (1) technical and political; (2) disciplinarily and multidisciplinarities; and (3) structures and agencies. I conclude with reflections on my boundary labour as a researcher, writer and pedagogue and how such cultural work might learn to live better with difference, ambiguities, hybrids and cross-hybrid learning.

  17. Ground receiving station (GRS) of UMS - receiving and processing the electromagnetic wave data from satellite

    International Nuclear Information System (INIS)

    Mohammad Syahmi Nordin; Fauziah Abdul Aziz

    2007-01-01

    The low resolution Automatic Picture Transmission (APT) data from the National Oceanic and Atmospheric Administration (NOAA) polar-orbiting satellites Advanced Very High Resolution Radiometer (AVHRR) is being received and recorded in real-time mode at ground receiving station in School of Science and Technology, Universiti Malaysia Sabah. The system is suitable for the developing and undeveloped countries in south and Southeast Asia and is said to be acceptable for engineering, agricultural, climatological and environmental applications. The system comprises a personal computer attached with a small APT receiver. The data transmission between the ground receiving station and NOAA satellites is using the electromagnetic wave. The relation for receiving and processing the electromagnetic wave in the transmission will be discussed. (Author)

  18. GNSS Software Receiver for UAVs

    DEFF Research Database (Denmark)

    Olesen, Daniel Madelung; Jakobsen, Jakob; von Benzon, Hans-Henrik

    2016-01-01

    This paper describes the current activities of GPS/GNSS Software receiver development at DTU Space. GNSS Software receivers have received a great deal of attention in the last two decades and numerous implementations have already been presented. DTU Space has just recently started development of ...... of our own GNSS software-receiver targeted for mini UAV applications, and we will in in this paper present our current progress and briefly discuss the benefits of Software Receivers in relation to our research interests....

  19. David Nolfi Receives NAHRS Award for Professional Excellence

    Directory of Open Access Journals (Sweden)

    Maureen Diana Sasso

    2013-09-01

    Full Text Available News AnnouncementDavid A. Nolfi, MLS, AHIP, Health Sciences Librarian & Library Assessment Coordinator at Duquesne University’s Gumberg Library, received the 2013 NAHRS Award for Professional Excellence at the One Health Conference in Boston, MA.

  20. Reading and proclaiming the Birth Narratives from Luke and Matthew: A study in empirical theology amongst curates and their training incumbents employing the SIFT method

    Directory of Open Access Journals (Sweden)

    Leslie J. Francis

    2013-07-01

    Full Text Available Drawing on Jungian psychological type theory, the SIFT method of biblical hermeneutics and liturgical preaching suggests that the reading and proclaiming of scripture reflects the psychological type preferences of the reader and preacher. This thesis is examined amongst two samples of curates and training incumbents (N = 23, 27, serving in one Diocese of the Church of England, who completed the Myers-Briggs Type Indicator. Firstly, the narrative of the shepherds from Luke was discussed by groups organised according to scores on the perceiving process. In accordance with the theory, sensing types focused on details in the passage, but could reach no consensus on the larger picture, and intuitive types quickly identified an imaginative, integrative theme, but showed little interest in the details. Secondly, the narrative of the massacre of the infants from Matthew was discussed by groups organised according to scores on the judging process. In accordance with theory, the thinking types identified and analysed the big themes raised by the passage (political power, theodicy, obedience, whilst the feeling types placed much more emphasis on the impact that the passage may have on members of the congregation mourning the death of their child or grandchild.

  1. Visualization of Excitonic Structure in the Fenna-Matthews-Olson Photosynthetic Complex by Polarization-Dependent Two-Dimensional Electronic Spectroscopy

    International Nuclear Information System (INIS)

    Fleming, Graham; Read, Elizabeth L.; Schlau-Cohen, Gabriela S.; Engel, Gregory S.; Wen, Jianzhong; Blankenship, Robert E.; Fleming, Graham R.

    2008-01-01

    Photosynthetic light-harvesting proceeds by the collection and highly efficient transfer of energy through a network of pigment-protein complexes. Inter-chromophore electronic couplings and interactions between pigments and the surrounding protein determine energy levels of excitonic states and dictate the mechanism of energy flow. The excitonic structure (orientation of excitonic transition dipoles) of pigment-protein complexes is generally deduced indirectly from x-ray crystallography in combination with predictions of transition energies and couplings in the chromophore site basis. Here, we demonstrate that coarse-grained excitonic structural information in the form of projection angles between transition dipole moments can be obtained from polarization-dependent two-dimensional electronic spectroscopy of an isotropic sample, particularly when the nonrephasing or free polarization decay signal rather than the photon echo signal is considered. The method provides an experimental link between atomic and electronic structure and accesses dynamical information with femtosecond time resolution. In an investigation of the Fenna-Matthews-Olson complex from green sulfur bacteria, energy transfer connecting two particular exciton states in the protein is isolated as being the primary contributor to a cross peak in the nonrephasing 2D spectrum at 400 fs under a specific sequence of polarized excitation pulses. The results suggest the possibility of designing experiments using combinations of tailored polarization sequences to separate and monitor individual relaxation pathways

  2. Efficient and accurate simulations of two-dimensional electronic photon-echo signals: Illustration for a simple model of the Fenna-Matthews-Olson complex

    International Nuclear Information System (INIS)

    Sharp, Leah Z.; Egorova, Dassia; Domcke, Wolfgang

    2010-01-01

    Two-dimensional (2D) photon-echo spectra of a single subunit of the Fenna-Matthews-Olson (FMO) bacteriochlorophyll trimer of Chlorobium tepidum are simulated, employing the equation-of-motion phase-matching approach (EOM-PMA). We consider a slightly extended version of the previously proposed Frenkel exciton model, which explicitly accounts for exciton coherences in the secular approximation. The study is motivated by a recent experiment reporting long-lived coherent oscillations in 2D transients [Engel et al., Nature 446, 782 (2007)] and aims primarily at accurate simulations of the spectroscopic signals, with the focus on oscillations of 2D peak intensities with population time. The EOM-PMA accurately accounts for finite pulse durations as well as pulse-overlap effects and does not invoke approximations apart from the weak-field limit for a given material system. The population relaxation parameters of the exciton model are taken from the literature. The effects of various dephasing mechanisms on coherence lifetimes are thoroughly studied. It is found that the experimentally detected multiple frequencies in peak oscillations cannot be reproduced by the employed FMO model, which calls for the development of a more sophisticated exciton model of the FMO complex.

  3. Simulating signatures of two-dimensional electronic spectra of the Fenna-Matthews-Olson complex: By using a numerical path integral

    International Nuclear Information System (INIS)

    Liang, Xian-Ting

    2014-01-01

    A framework for simulating electronic spectra from photon-echo experiments is constructed by using a numerical path integral technique. This method is non-Markovian and nonperturbative and, more importantly, is not limited by a fixed form of the spectral density functions of the environment. Next, a two-dimensional (2D) third-order electronic spectrum of a dimer system is simulated. The spectrum is in agreement with the experimental and theoretical results previously reported [for example, M. Khalil, N. Demirdöven, and A. Tokmakoff, Phys. Rev. Lett. 90, 047401 (2003)]. Finally, a 2D third-order electronic spectrum of the Fenna-Matthews-Olson (FMO) complex is simulated by using the Debye, Ohmic, and Adolphs and Renger spectral density functions. It is shown that this method can clearly produce the spectral signatures of the FMO complex by using only the Adolphs and Renger spectral density function. Plots of the evolution of the diagonal and cross-peaks show that they are oscillating with the population time

  4. Theoretical strengthening of the concept of appealing in analysed sermons on Matthew 25:31–46 in the context of poverty in South Africa

    Directory of Open Access Journals (Sweden)

    Hennie J.C. Pieterse

    2013-08-01

    Full Text Available From a qualitative grounded theory analysis in a sample of 26 sermons with Matthew 25:31–46 as sermon text, a rhetorical structure of how the preachers try to convince their listeners to care for the poor emerged. The homiletical concept of appealing related to all the categories borne out of the analysis of the inner world of the 26 sermons, and also to the categories showing this rhetorical structure in the sermons. The article discusses what the dimensions are in the concept of appealing borne out of the sermons in which the rhetorical structure was apparent, which rhetorical theory would fit as theoretical base for the concept of appealing in its relationship with the rhetorical structure in the sermons, and what dilemma the preachers face when they try to convince their listeners to participate in the care for the poor. The rhetorical theory of deliberative rhetoric (Aristotle and the classical theory with the three dimensions logos, ethos and pathosis discussed in this article as theoretical thickening of the concept of appealing to the listeners of the sermons. This article attempts to demonstrate how to go about theorising from a grounded theory analysis of sermons with Matthew 25:31–46 as a sermon text with, as result, a theory that could help preachers in preaching from this text in the context of poverty in South Africa. Vanuit ’n kwalitatief-gegronde teorie-ontleding (grounded theory analysis van 26 preke met Matteus 25:31–46 as preekteks, het ’n retoriese struktuur na vore gekom waarmee predikers hulle toehoorders wil oorreed om armes te versorg. Die homiletiese konsep van appèl, hou verband met al die kategorieë wat uit die inhoudsanalise van die binnewêreld van die 26 preke na vore gekom het, asook die kategorieë waarin die retoriese struktuur sigbaar is. Die artikel bespreek die dimensies in die konsep van appèl wat na vore kom uit die preke waarin die retoriese struktuur duidelik is, welke retoriese teorie as

  5. The Impact of Cross-track Infrared Sounder (CrIS) Cloud-Cleared Radiances on Hurricane Joaquin (2015) and Matthew (2016) Forecasts

    Science.gov (United States)

    Wang, Pei; Li, Jun; Li, Zhenglong; Lim, Agnes H. N.; Li, Jinlong; Schmit, Timothy J.; Goldberg, Mitchell D.

    2017-12-01

    Hyperspectral infrared (IR) sounders provide high vertical resolution atmospheric sounding information that can improve the forecast skill in numerical weather prediction. Commonly, only clear radiances are assimilated, because IR sounder observations are highly affected by clouds. A cloud-clearing (CC) technique, which removes the cloud effects from an IR cloudy field of view (FOV) and derives the cloud-cleared radiances (CCRs) or clear-sky equivalent radiances, can be an alternative yet effective way to take advantage of the thermodynamic information from cloudy skies in data assimilation. This study develops a Visible Infrared Imaging Radiometer Suite (VIIRS)-based CC method for deriving Cross-track Infrared Sounder (CrIS) CCRs under partially cloudy conditions. Due to the lack of absorption bands on VIIRS, two important quality control steps are implemented in the CC process. Validation using VIIRS clear radiances indicates that the CC method can effectively obtain the CrIS CCRs for FOVs with partial cloud cover. To compare the impacts from assimilation of CrIS original radiances and CCRs, three experiments are carried out on two storm cases, Hurricane Joaquin (2015) and Hurricane Matthew (2016), using Gridpoint Statistical Interpolation assimilation system and Weather Research and Forecasting-Advanced Research Version models. At the analysis time, more CrIS observations are assimilated when using CrIS CCRs than with CrIS original radiances. Comparing temperature, specific humidity, and U/V winds with radiosondes indicates that the data impacts are growing larger with longer time forecasts (beyond 72 h forecast). Hurricane track forecasts also show improvements from the assimilation of CrIS CCRs due to better weather system forecasts. The impacts of CCRs on intensity are basically neutral with mixed positive and negative results.

  6. Solar advanced internal film receiver

    International Nuclear Information System (INIS)

    Torre Cabezas, M. de la

    1990-01-01

    In a Solar Central Internal Film Receiver, the heat absorbing fluid (a molten nitrate salt) flows in a thin film down over the non illuminated side of an absorber panel. Since the molten salt working fluid is not contained in complicated tube manifolds, the receiver design is simples than a conventional tube type-receiver resulting in a lower cost and a more reliable receiver. The Internal Film Receiver can be considered as an alternative to the Direct Absorption Receiver, in the event that the current problems of the last one can not be solved. It also describes here the test facility which will be used for its solar test, and the test plans foreseen. (Author) 17 refs

  7. Stability of heterodyne terahertz receivers

    NARCIS (Netherlands)

    Kooi, J.W.; Baselmans, J.J.A.; Baryshev, A.; Schieder, R.; Hajenius, M.; Gao, J.R.; Klapwijk, T.M.; Voronov, B.; Gol'tsman, G.

    2006-01-01

    In this paper we discuss the stability of heterodyne terahertz receivers based on small volume NbN phonon cooled hot electron bolometers (HEBs). The stability of these receivers can be broken down in two parts: the intrinsic stability of the HEB mixer and the stability of the local oscillator (LO)

  8. High Gain Advanced GPS Receiver

    National Research Council Canada - National Science Library

    Brown, Alison; Zhang, Gengsheng

    2006-01-01

    NAVSYS High Gain Advanced GPS Receiver (HAGR) uses a digital beam-steering antenna array to enable up to eight GPS satellites to be tracked, each with up to 10 dBi of additional antenna gain over a conventional receiver solution...

  9. UWB delay and multiply receiver

    Energy Technology Data Exchange (ETDEWEB)

    Dallum, Gregory E.; Pratt, Garth C.; Haugen, Peter C.; Romero, Carlos E.

    2013-09-10

    An ultra-wideband (UWB) delay and multiply receiver is formed of a receive antenna; a variable gain attenuator connected to the receive antenna; a signal splitter connected to the variable gain attenuator; a multiplier having one input connected to an undelayed signal from the signal splitter and another input connected to a delayed signal from the signal splitter, the delay between the splitter signals being equal to the spacing between pulses from a transmitter whose pulses are being received by the receive antenna; a peak detection circuit connected to the output of the multiplier and connected to the variable gain attenuator to control the variable gain attenuator to maintain a constant amplitude output from the multiplier; and a digital output circuit connected to the output of the multiplier.

  10. 77 FR 67407 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978

    Science.gov (United States)

    2012-11-09

    ... designation of certain animals and certain geographic areas a requiring special protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas. The applications received... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic...

  11. 78 FR 59728 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978

    Science.gov (United States)

    2013-09-27

    ... requiring special protection. The regulations establish such a permit system to designate Antarctic... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Foundation (NSF) is required to publish a notice of permit applications received to conduct activities...

  12. Customizable Digital Receivers for Radar

    Science.gov (United States)

    Moller, Delwyn; Heavey, Brandon; Sadowy, Gregory

    2008-01-01

    Compact, highly customizable digital receivers are being developed for the system described in 'Radar Interferometer for Topographic Mapping of Glaciers and Ice Sheets' (NPO-43962), NASA Tech Briefs, Vol. 31, No. 7 (August 2007), page 72. The receivers are required to operate in unison, sampling radar returns received by the antenna elements in a digital beam-forming (DBF) mode. The design of these receivers could also be adapted to commercial radar systems. At the time of reporting the information for this article, there were no commercially available digital receivers capable of satisfying all of the operational requirements and compact enough to be mounted directly on the antenna elements. A provided figure depicts the overall system of which the digital receivers are parts. Each digital receiver includes an analog-to-digital converter (ADC), a demultiplexer (DMUX), and a field-programmable gate array (FPGA). The ADC effects 10-bit band-pass sampling of input signals having frequencies up to 3.5 GHz. The input samples are demultiplexed at a user-selectable rate of 1:2 or 1:4, then buffered in part of the FPGA that functions as a first-in/first-out (FIFO) memory. Another part of the FPGA serves as a controller for the ADC, DMUX, and FIFO memory and as an interface between (1) the rest of the receiver and (2) a front-panel data port (FPDP) bus, which is an industry-standard parallel data bus that has a high data-rate capability and multichannel configuration suitable for DBF. Still other parts of the FPGA in each receiver perform signal-processing functions. The digital receivers can be configured to operate in a stand-alone mode, or in a multichannel mode as needed for DBF. The customizability of the receiver makes it applicable to a broad range of system architectures. The capability for operation of receivers in either a stand-alone or a DBF mode enables the use of the receivers in an unprecedentedly wide variety of radar systems.

  13. Science Programs

    Science.gov (United States)

    Laboratory Delivering science and technology to protect our nation and promote world stability Science & ; Innovation Collaboration Careers Community Environment Science & Innovation Facilities Science Pillars Research Library Science Briefs Science News Science Highlights Lab Organizations Science Programs Applied

  14. Loomalikud vaimud naasevad / Matthew Bishop

    Index Scriptorium Estoniae

    Bishop, Matthew

    2005-01-01

    Autori hinnangul läheneb maailma ettevõtluses investeerimisbuum ja ettevõtted hakkavad taas riske võtma. Diagramm: Ettevõtete kasumid ja äriinvesteeringud. Vt. samas: Sajandi kohtuprotsess? (Enroni kohtuprotsessist)

  15. Andries van Aarde's Matthew Interpretation

    African Journals Online (AJOL)

    Test

    2011-01-14

    Jan 14, 2011 ... Secondly, it is an individual and independent interpretation of the Matthean .... specific social context is emphasised: certain events in the early church ...... Moses-theology, a Covenant-theology or any other exclusive theology.

  16. The Matthew Effect: Evolutionary Implications

    Directory of Open Access Journals (Sweden)

    Leon Sloman MRCS LRCP FRCP (C

    2004-01-01

    Full Text Available This article suggests that, in prehistoric man, the results of competition magnified the effect of small genetic differences between competing individuals, thereby increasing the differential in their relative reproductive success (difference amplification. This had the effect of accelerating the evolution of early man. The differential effect of success and failure on competing individuals led to “difference amplification”. These mechanisms can still be observed today. This model is relevant to psychotherapy with depressed clients.

  17. Thompson Receives 2013 Early Career Hydrologic Science Award: Citation

    Science.gov (United States)

    Katul, Gabriel

    2014-08-01

    Sally Thompson grew up in Perth, where she was trained as an environmental engineer at the University of Western Australia. She graduated with honors in 2003 and worked for a few years as an environmental engineering consultant. Following the award of the Sir John Monash Fellowship in Australia, Sal accepted the admissions offer from the Nicholas School of the Environment at Duke University in 2006, completing her Ph.D. within 4 years and defending her dissertation in 2010. I was most fortunate to have Sal join me at Duke after an enthusiastic recommendation from Siva. Upon her arrival at Duke University, it was immediately clear to all that Sal is a special person with the remarkable skill of being able to identify the main aspects of a problem and throw at them the best that theory, experiment, and modeling tools offer.

  18. HIGH-EFFICIENCY INFRARED RECEIVER

    Directory of Open Access Journals (Sweden)

    A. K. Esman

    2016-01-01

    Full Text Available Recent research and development show promising use of high-performance solid-state receivers of the electromagnetic radiation. These receivers are based on the low-barrier Schottky diodes. The approach to the design of the receivers on the basis of delta-doped low-barrier Schottky diodes with beam leads without bias is especially actively developing because for uncooled receivers of the microwave radiation these diodes have virtually no competition. The purpose of this work is to improve the main parameters and characteristics that determine the practical relevance of the receivers of mid-infrared electromagnetic radiation at the operating room temperature by modifying the electrodes configuration of the diode and optimizing the distance between them. Proposed original design solution of the integrated receiver of mid-infrared radiation on the basis of the low-barrier Schottky diodes with beam leads allows to effectively adjust its main parameters and characteristics. Simulation of the electromagnetic characteristics of the proposed receiver by using the software package HFSS with the basic algorithm of a finite element method which implemented to calculate the behavior of electromagnetic fields on an arbitrary geometry with a predetermined material properties have shown that when the inner parts of the electrodes of the low-barrier Schottky diode is performed in the concentric elliptical convex-concave shape, it can be reduce the reflection losses to -57.75 dB and the standing wave ratio to 1.003 while increasing the directivity up to 23 at a wavelength of 6.09 μm. At this time, the rounded radii of the inner parts of the anode and cathode electrodes are equal 212 nm and 318 nm respectively and the gap setting between them is 106 nm. These parameters will improve the efficiency of the developed infrared optical-promising and electronic equipment for various purposes intended for work in the mid-infrared wavelength range. 

  19. Science and Science Fiction

    Science.gov (United States)

    Oravetz, David

    2005-01-01

    This article is for teachers looking for new ways to motivate students, increase science comprehension, and understanding without using the old standard expository science textbook. This author suggests reading a science fiction novel in the science classroom as a way to engage students in learning. Using science fiction literature and language…

  20. GIVING AND RECEIVING CONSTRUCTIVE FEEDBACK

    Directory of Open Access Journals (Sweden)

    Ірина Олійник

    2015-05-01

    Full Text Available The article scrutinizes the notion of feedback applicable in classrooms where team teaching is provided. The experience of giving and receiving feedback has been a good practice in cooperation between a U.S. Peace Corps volunteer and a Ukrainian counterpart. Giving and receiving feedback is an effective means of classroom observation that provides better insight into the process of teaching a foreign language. The article discusses the stages of feedback and explicates the notion of sharing experience between two teachers working simultaneously in the same classroom. The guidelines for giving and receiving feedback have been provided as well as the most commonly used vocabulary items have been listed. It has been proved that mutual feedback leads to improving teaching methods and using various teaching styles and techniques.

  1. Receiver-exciter controller design

    Science.gov (United States)

    Jansma, P. A.

    1982-01-01

    A description of the general design of both the block 3 and block 4 receiver-exciter controllers for the Deep Space Network (DSN) Mark IV-A System is presented along with the design approach. The controllers are designed to enable the receiver-exciter subsystem (RCV) to be configured, calibrated, initialized and operated from a central location via high level instructions. The RECs are designed to be operated under the control of the DMC subsystem. The instructions are in the form of standard subsystem blocks (SSBs) received via the local area network (LAN). The centralized control provided by RECs and other DSCC controllers in Mark IV-A is intended to reduce DSN operations costs from the Mark III era.

  2. Stability of heterodyne terahertz receivers

    OpenAIRE

    Kooi, J. W.; Baselmans, J. J. A.; Baryshev, A.; Schieder, R.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M.; Voronov, B.; Gol'tsman, G.

    2006-01-01

    In this paper we discuss the stability of heterodyne terahertz receivers based on small volume NbN phonon cooled hot electron bolometers (HEBs). The stability of these receivers can be broken down in two parts: the intrinsic stability of the HEB mixer and the stability of the local oscillator (LO) signal injection scheme. Measurements show that the HEB mixer stability is limited by gain fluctuations with a 1/f spectral distribution. In a 60 MHz noise bandwidth this results in an Allan varian...

  3. Morel Receives 2005 Maurice Ewing Medal

    Science.gov (United States)

    Schrag, Daniel P.; Morel, François M. M.

    2006-02-01

    François M. M. Morel received the Ewing Medal at the AGU Fall Meeting Honors Ceremony, which was held on 7 December 2005, in San Francisco, Calif. The medal is given for significant original contributions to the scientific understanding of the processes in the ocean; for the advancement of oceanographic engineering, technology, and instrumentation; and for outstanding service to marine sciences. François Morel has led the search to understand the role of metals in the ocean, starting with a focus on inorganic processes and aquatic chemistry, and leading to a blend of geochemistry, microbiology, biochemistry, and genetics. His influence comes from his research and from the way he has educated an entire community of scientists with his textbooks, with his teaching, and through his former students and postdocs who hold faculty positions at universities throughout the world.

  4. Received View of Addiction, Relapse and Treatment.

    Science.gov (United States)

    Ndasauka, Yamikani; Wei, Zhengde; Zhang, Xiaochu

    2017-01-01

    It is important to highlight that attempts at understanding and explaining addiction have been made for centuries. It is, however, just five decades ago, with the growth of science and technology that more interest has been observed in this field. This chapter examines different views and theories that have been posited to understand and explain addiction. More attention will be given to prominent views that seem to draw consensus among researchers and medical practitioners. The first section of the chapter introduces the addiction debate, the different theories that have been provided to explain it from different perspectives and disciplines such as neurosciences, philosophy and psychology. Then, the chapter discusses different views on the role of relapse and what it entails in understanding addiction. The second section discusses different proposed and used forms of treating addiction. Thus, the chapter discusses the received view of addiction, the understanding of relapse as a critical element in addiction and treatments.

  5. 77 FR 62537 - Notice of Waste Management Permit Application Received Under the Antarctic Conservation Act of 1978

    Science.gov (United States)

    2012-10-15

    ... NATIONAL SCIENCE FOUNDATION Notice of Waste Management Permit Application Received Under the Antarctic Conservation Act of 1978 AGENCY: National Science Foundation. ACTION: Notice of a Waste Management... the National Science Foundation (NSF) has received a waste management permit application for Mike...

  6. Femtosecond Photon-Counting Receiver

    Science.gov (United States)

    Krainak, Michael A.; Rambo, Timothy M.; Yang, Guangning; Lu, Wei; Numata, Kenji

    2016-01-01

    An optical correlation receiver is described that provides ultra-precise distance and/or time/pulse-width measurements even for weak (single photons) and short (femtosecond) optical signals. A new type of optical correlation receiver uses a fourth-order (intensity) interferometer to provide micron distance measurements even for weak (single photons) and short (femtosecond) optical signals. The optical correlator uses a low-noise-integrating detector that can resolve photon number. The correlation (range as a function of path delay) is calculated from the variance of the photon number of the difference of the optical signals on the two detectors. Our preliminary proof-of principle data (using a short-pulse diode laser transmitter) demonstrates tens of microns precision.

  7. Scintillation-Hardened GPS Receiver

    Science.gov (United States)

    Stephens, Donald R.

    2015-01-01

    CommLargo, Inc., has developed a scintillation-hardened Global Positioning System (GPS) receiver that improves reliability for low-orbit missions and complies with NASA's Space Telecommunications Radio System (STRS) architecture standards. A software-defined radio (SDR) implementation allows a single hardware element to function as either a conventional radio or as a GPS receiver, providing backup and redundancy for platforms such as the International Space Station (ISS) and high-value remote sensing platforms. The innovation's flexible SDR implementation reduces cost, weight, and power requirements. Scintillation hardening improves mission reliability and variability. In Phase I, CommLargo refactored an open-source GPS software package with Kalman filter-based tracking loops to improve performance during scintillation and also demonstrated improved navigation during a geomagnetic storm. In Phase II, the company generated a new field-programmable gate array (FPGA)-based GPS waveform to demonstrate on NASA's Space Communication and Navigation (SCaN) test bed.

  8. Paterson Receives 2004 Walter H. Bucher Medal

    Science.gov (United States)

    Jackson, Ian

    2005-01-01

    Mervyn S. Paterson received the Bucher Medal at the 2004 Fall Meeting Honors Ceremony on 15 December, in San Francisco, California. The medal is given for original contributions to the basic knowledge of the crust and lithosphere. Citation. It is the nature of modern research in the Earth sciences that observations of natural phenomena are often made and interpreted through the prism provided by the enabling sciences and technologies. Thus it has been with Mervyn Paterson's career. His undergraduate training in engineering in Adelaide formed the basis for his Ph.D. study of X-ray line-broadening in cold-worked metals under Orowan at Cambridge. This interest in the deformation of metals was fostered during his employment at the Aeronautical Research Laboratories in Melbourne and by postdoctoral experience at the Institute of Metals at the University of Chicago. Mervyn's general background in engineering and his particular interest in mechanical behavior have underpinned a distinguished career at the Australian National University in the experimental deformation of rocks, providing fundamental new insight into the mechanical behavior of the Earth's crust.

  9. Science and data science.

    Science.gov (United States)

    Blei, David M; Smyth, Padhraic

    2017-08-07

    Data science has attracted a lot of attention, promising to turn vast amounts of data into useful predictions and insights. In this article, we ask why scientists should care about data science. To answer, we discuss data science from three perspectives: statistical, computational, and human. Although each of the three is a critical component of data science, we argue that the effective combination of all three components is the essence of what data science is about.

  10. Communication received from South Africa

    International Nuclear Information System (INIS)

    1984-02-01

    The document reproduces the press release with a statement by Dr. J.W.L. de Villiers, Executive Chairman of the Atomic Energy Corporation of South Africa Limited, issued on 31 January 1984 and included in the letter received by the Director General of the IAEA from the Resident Representative of South Africa to the Agency on 31 January 1984. This statement refers to the transfer of nuclear material equipment and technology by South Africa to other countries and the Non-Proliferation Treaty

  11. Absorption Efficiency of Receiving Antennas

    DEFF Research Database (Denmark)

    Andersen, Jørgen Bach; Frandsen, Aksel

    2005-01-01

    A receiving antenna with a matched load will always scatter some power. This paper sets an upper and a lower bound on the absorption efficiency (absorbed power over sum of absorbed and scattered powers), which lies between 0 and 100% depending on the directivities of the antenna and scatter...... patterns. It can approach 100% as closely as desired, although in practice this may not be an attractive solution. An example with a small endfire array of dipoles shows an efficiency of 93%. Several examples of small conical horn antennas are also given, and they all have absorption efficiencies less than...

  12. Solar receiver with integrated optics

    Science.gov (United States)

    Jiang, Lun; Winston, Roland

    2012-10-01

    The current challenge for PV/Thermal (PV/T) systems is the reduction of radiation heat loss. Compared to solar thermal selective coating, the solar cells cannot be used as an efficient thermal absorber due to their large emissivity of the encapsulation material. Many commercial PV/T products therefore require a high concentration (more than 10x) to reach an acceptable thermal efficiency for their receivers. Such a concentration system inevitably has to track or semi-track, which induces additional cost and collects only the direct radiation from the sun. We propose a new PV/T design using a vacuum encapsulated thin film cell to solve this problem. The proposed design also collects the diffuse sun light efficiently by using an external compound parabolic concentrator (XCPC). Since the transparent electrode (TCO) of thin film cell is inherently transparent in visible light and reflective beyond infrared, this design uses this layer instead of the conventional solar cell encapsulation as the outmost heat loss surface. By integrating such a vacuum design with a tube shaped absorber, we reduce the complexity of conducting the heat energy and electricity out of the device. A low concentration standalone non-tracking solar collector is proposed in this paper. We also analyzed the thermosyphon system configuration using heat transfer and ray tracing models. The economics of such a receiver are presented.

  13. Broadband direct RF digitization receivers

    CERN Document Server

    Jamin, Olivier

    2014-01-01

    This book discusses the trade-offs involved in designing direct RF digitization receivers for the radio frequency and digital signal processing domains.  A system-level framework is developed, quantifying the relevant impairments of the signal processing chain, through a comprehensive system-level analysis.  Special focus is given to noise analysis (thermal noise, quantization noise, saturation noise, signal-dependent noise), broadband non-linear distortion analysis, including the impact of the sampling strategy (low-pass, band-pass), analysis of time-interleaved ADC channel mismatches, sampling clock purity and digital channel selection. The system-level framework described is applied to the design of a cable multi-channel RF direct digitization receiver. An optimum RF signal conditioning, and some algorithms (automatic gain control loop, RF front-end amplitude equalization control loop) are used to relax the requirements of a 2.7GHz 11-bit ADC. A two-chip implementation is presented, using BiCMOS and 65nm...

  14. CERN physicist receives Einstein Medal

    CERN Multimedia

    2006-01-01

    On 29 June the CERN theorist Gabriele Veneziano was awarded the prestigious Albert Einstein Medal for significant contributions to the understanding of string theory. This award is given by the Albert Einstein Society in Bern to individuals whose scientific contributions relate to the work of Einstein. Former recipients include exceptional physicists such as Murray Gell-Mann last year, but also Stephen Hawking and Victor Weisskopf. Gabriele Veneziano, a member of the integrated CERN Theory Team since 1977, led the Theory Division from 1994 to 1997 and has already received many prestigious prizes for his outstanding work, including the Enrico Fermi Prize (see CERN Courier, November 2005), the Dannie Heineman Prize for mathematical physics of the American Physical Society in 2004 (see Bulletin No. 47/2003), and the I. Ya. Pomeranchuk Prize of the Institute of Theoretical and Experimental Physics (Moscow) in 1999.

  15. Science in Science Fiction.

    Science.gov (United States)

    Allday, Jonathan

    2003-01-01

    Offers some suggestions as to how science fiction, especially television science fiction programs such as "Star Trek" and "Star Wars", can be drawn into physics lessons to illuminate some interesting issues. (Author/KHR)

  16. Odvrácená tvář otce egyptské archeologie William Matthew Flinders Petrie a eugenická věda // The Dark Side of the Father of Egyptian Archaeology William Matthew Flinders Petrie and Eugenic Science

    Directory of Open Access Journals (Sweden)

    Kamila Tomášková

    2016-06-01

    Full Text Available The text aims to bring attention of the Czech readers to Petrie's contributions to the eugenics movement in Great Britain. It describes his close association with Francis Galton and his resulting pronounced views on eugenics and shows how Petrie's racist opinions and involvement in eugenics influenced hi s work as an archaeologist and historian. An attempt is made to understand Petrie's views in the context ofhis times instead of condemning him for hi s appalling conclusions motivated by his racism and eugenics beliefs. The text offers a perspective which enables the readers to consider Petrie's thoughts in relation to the eugenic movement which was not on ly favoured by many ofhis contemporaries, but also had many supporters Jong after Petrie's death. Any consideration of the influence of past ideologies and context on Petrie's thinking and research also brings forward an unanswerable question ofhow much each one of u s is influenced by the ideologies and the context(s prevalent in present times and culture.

  17. ICAT: Integrating data infrastructure for facilities based science

    International Nuclear Information System (INIS)

    Flannery, Damian; Matthews, Brian; Griffin, Tom; Bicarregui, Juan; Gleaves, Michael; Lerusse, Laurent; Downing, Roger; Ashton, Alun; Sufi, Shoaib; Drinkwater, Glen; Kleese van Dam, Kerstin

    2009-01-01

    ICAT: Integrating data infrastructure for facilities based science Damian Flannery, Brian Matthews, Tom Griffin, Juan Bicarregui, Michael Gleaves, Laurent Lerusse, Roger Downing, Alun Ashton, Shoaib Sufi, Glen Drinkwater, Kerstin Kleese Abstract Scientific facilities, in particular large-scale photon and neutron sources, have demanding requirements to manage the increasing quantities of experimental data they generate in a systematic and secure way. In this paper, we describe the ICAT infrastructure for cataloguing facility generated experimental data which has been in development within STFC and DLS for several years. We consider the factors which have influenced its design and describe its architecture and metadata model, a key tool in the management of data. We go on to give an outline of its current implementation and use, with plans for its future development.

  18. Physical Sciences 2007 Science & Technology Highlights

    Energy Technology Data Exchange (ETDEWEB)

    Hazi, A U

    2008-04-07

    The Physical Sciences Directorate applies frontier physics and technology to grand challenges in national security. Our highly integrated and multidisciplinary research program involves collaborations throughout Lawrence Livermore National Laboratory, the National Nuclear Security Administration, the Department of Energy, and with academic and industrial partners. The Directorate has a budget of approximately $150 million, and a staff of approximately 350 employees. Our scientists provide expertise in condensed matter and high-pressure physics, plasma physics, high-energy-density science, fusion energy science and technology, nuclear and particle physics, accelerator physics, radiation detection, optical science, biotechnology, and astrophysics. This document highlights the outstanding research and development activities in the Physical Sciences Directorate that made news in 2007. It also summarizes the awards and recognition received by members of the Directorate in 2007.

  19. Physical Sciences 2007 Science and Technology Highlights

    International Nuclear Information System (INIS)

    Hazi, A.U.

    2008-01-01

    The Physical Sciences Directorate applies frontier physics and technology to grand challenges in national security. Our highly integrated and multidisciplinary research program involves collaborations throughout Lawrence Livermore National Laboratory, the National Nuclear Security Administration, the Department of Energy, and with academic and industrial partners. The Directorate has a budget of approximately $150 million, and a staff of approximately 350 employees. Our scientists provide expertise in condensed matter and high-pressure physics, plasma physics, high-energy-density science, fusion energy science and technology, nuclear and particle physics, accelerator physics, radiation detection, optical science, biotechnology, and astrophysics. This document highlights the outstanding research and development activities in the Physical Sciences Directorate that made news in 2007. It also summarizes the awards and recognition received by members of the Directorate in 2007

  20. Information Science: Science or Social Science?

    OpenAIRE

    Sreeramana Aithal; Paul P.K.,; Bhuimali A.

    2017-01-01

    Collection, selection, processing, management, and dissemination of information are the main and ultimate role of Information Science and similar studies such as Information Studies, Information Management, Library Science, and Communication Science and so on. However, Information Science deals with some different characteristics than these subjects. Information Science is most interdisciplinary Science combines with so many knowledge clusters and domains. Information Science is a broad disci...

  1. Media, risk and science

    CERN Document Server

    Allan, Stuart

    2002-01-01

    How is science represented by the media? Who defines what counts as a risk, threat or hazard, and why? In what ways do media images of science shape public perceptions? What can cultural and media studies tell us about current scientific controversies? "Media, Risk and Science" is an exciting exploration into an array of important issues, providing a much needed framework for understanding key debates on how the media represent science and risk. In a highly effective way, Stuart Allan weaves together insights from multiple strands of research across diverse disciplines. Among the themes he examines are: the role of science in science fiction, such as "Star Trek"; the problem of 'pseudo-science' in "The X-Files"; and how science is displayed in science museums. Science journalism receives particular attention, with the processes by which science is made 'newsworthy' unravelled for careful scrutiny. The book also includes individual chapters devoted to how the media portray environmental risks, HIV-AIDS, food s...

  2. Journal of Fundamental and Applied Sciences: Submissions

    African Journals Online (AJOL)

    The journal of fundamental and applied sciences receives and publishes ... and applied science which the results of studies may interest all researchers. ... the references are sorted in ascending order, according to the examples below.

  3. Science of science.

    Science.gov (United States)

    Fortunato, Santo; Bergstrom, Carl T; Börner, Katy; Evans, James A; Helbing, Dirk; Milojević, Staša; Petersen, Alexander M; Radicchi, Filippo; Sinatra, Roberta; Uzzi, Brian; Vespignani, Alessandro; Waltman, Ludo; Wang, Dashun; Barabási, Albert-László

    2018-03-02

    Identifying fundamental drivers of science and developing predictive models to capture its evolution are instrumental for the design of policies that can improve the scientific enterprise-for example, through enhanced career paths for scientists, better performance evaluation for organizations hosting research, discovery of novel effective funding vehicles, and even identification of promising regions along the scientific frontier. The science of science uses large-scale data on the production of science to search for universal and domain-specific patterns. Here, we review recent developments in this transdisciplinary field. Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

  4. Journal of Earth System Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 123; Issue 8 ... (SF) receivers has the advantages of stand-alone, absolute positioning and cost efficiency. ... College of Informatics, South China Agricultural University, Guangzhou, ...

  5. Physical and Life Sciences 2008 Science & Technology Highlights

    Energy Technology Data Exchange (ETDEWEB)

    Correll, D L; Hazi, A U

    2009-05-06

    This document highlights the outstanding research and development activities in the Physical and Life Sciences Directorate that made news in 2008. It also summarizes the awards and recognition received by members of the Directorate in 2008.

  6. Water jacket for solid particle solar receiver

    Science.gov (United States)

    Wasyluk, David T.

    2018-03-20

    A solar receiver includes: water jacket panels each having a light-receiving side and a back side with a watertight sealed plenum defined in-between; light apertures passing through the watertight sealed plenums to receive light from the light-receiving sides of the water jacket panels; a heat transfer medium gap defined between the back sides of the water jacket panels and a cylindrical back plate; and light channeling tubes optically coupled with the light apertures and extending into the heat transfer medium gap. In some embodiments ends of the light apertures at the light receiving side of the water jacket panel are welded together to define at least a portion of the light-receiving side. A cylindrical solar receiver may be constructed using a plurality of such water jacket panels arranged with their light-receiving sides facing outward.

  7. Science Smiles

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. Science Smiles. Articles in Resonance – Journal of Science Education. Volume 1 Issue 4 April 1996 pp 4-4 Science Smiles. Chief Editor's column / Science Smiles · R K Laxman · More Details Fulltext PDF. Volume 1 Issue 5 May 1996 pp 3-3 Science Smiles.

  8. Design of double capacitances infrasonic receiver

    International Nuclear Information System (INIS)

    Wang Changhai; Han Kuixia; Wang Fei

    2003-01-01

    The article introduces the theory of infrasonic generation and reception of nuclear explosion. An idea of the design of double capacitances infrasonic receiver using CPLD technology is given in it. Compare with the single capacitance infrasonic receiver, sensitivity of the improved receiver can be improved scores of times, dynamic range can be improved largely, and the whole performance gets improvement a lots

  9. 29 CFR 1917.155 - Air receivers.

    Science.gov (United States)

    2010-07-01

    .... This section applies to compressed air receivers and equipment used for operations such as cleaning... transportation applications as railways, vehicles or cranes. (b) Gauges and valves. (1) Air receivers shall be... 29 Labor 7 2010-07-01 2010-07-01 false Air receivers. 1917.155 Section 1917.155 Labor Regulations...

  10. 49 CFR 393.88 - Television receivers.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 5 2010-10-01 2010-10-01 false Television receivers. 393.88 Section 393.88... NECESSARY FOR SAFE OPERATION Miscellaneous Parts and Accessories § 393.88 Television receivers. Any motor vehicle equipped with a television viewer, screen or other means of visually receiving a television...

  11. 21 CFR 1020.10 - Television receivers.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Television receivers. 1020.10 Section 1020.10 Food...) RADIOLOGICAL HEALTH PERFORMANCE STANDARDS FOR IONIZING RADIATION EMITTING PRODUCTS § 1020.10 Television receivers. (a) Applicability. The provisions of this section are applicable to television receivers...

  12. Science or Science Fiction?

    DEFF Research Database (Denmark)

    Lefsrud, Lianne M.; Meyer, Renate

    2012-01-01

    This paper examines the framings and identity work associated with professionals’ discursive construction of climate change science, their legitimation of themselves as experts on ‘the truth’, and their attitudes towards regulatory measures. Drawing from survey responses of 1077 professional......, legitimation strategies, and use of emotionality and metaphor. By linking notions of the science or science fiction of climate change to the assessment of the adequacy of global and local policies and of potential organizational responses, we contribute to the understanding of ‘defensive institutional work...

  13. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Checkpointing is the process of saving the status information. ... Supercomputer Education and Research Centre (SERC), Indian Institute of Science, Bangalore 560 ... Manuscript received: 27 August 1998; Manuscript revised: 8 June 2000 ...

  14. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... VLSI clock interconnects; delay variability; PDF; process variation; Gaussian random ... Supercomputer Education and Research Centre, Indian Institute of Science, ... Manuscript received: 27 February 2009; Manuscript revised: 9 February ...

  15. Precise orbit determination for the shuttle radar topography mission using a new generation of GPS receiver

    Science.gov (United States)

    Bertiger, W.; Bar-Sever, Y.; Desai, S.; Duncan, C.; Haines, B.; Kuang, D.; Lough, M.; Reichert, A.; Romans, L.; Srinivasan, J.; hide

    2000-01-01

    The BlackJack family of GPS receivers has been developed at JPL to satisfy NASA's requirements for high-accuracy, dual-frequency, Y-codeless GPS receivers for NASA's Earth science missions. In this paper we will present the challenges that were overcome to meet this accuracy requirement. We will discuss the various reduced dynamic strategies, Space Shuttle dynamic models, and our tests for accuracy that included a military Y-code dual-frequency receiver (MAGR).

  16. More Efficient Solar Thermal-Energy Receiver

    Science.gov (United States)

    Dustin, M. O.

    1987-01-01

    Thermal stresses and reradiation reduced. Improved design for solar thermal-energy receiver overcomes three major deficiencies of solar dynamic receivers described in literature. Concentrator and receiver part of solar-thermal-energy system. Receiver divided into radiation section and storage section. Concentrated solar radiation falls on boiling ends of heat pipes, which transmit heat to thermal-energy-storage medium. Receiver used in number of applications to produce thermal energy directly for use or to store thermal energy for subsequent use in heat engine.

  17. An experimental study of thermal characterization of parabolic trough receivers

    International Nuclear Information System (INIS)

    Lei, Dongqiang; Li, Qiang; Wang, Zhifeng; Li, Jian; Li, Jianbin

    2013-01-01

    Highlights: ► A new test stand of heat loss has been developed at IEECAS. ► A correlation between heat loss and absorber temperature is presented, 270 W/m 400 °C. ► The ratio of end loss in total heat loss increases with decreasing the temperature. ► The emittance test stand using a high vacuum system and vacuum gauge is built. ► Emittance first decreases, then rapidly increases with increasing the temperature. - Abstract: The receiver is a key component of the parabolic trough solar station. The receiver requires the most challenging technology and has a decisive influence on the thermal and economic performance of a power plant. The Institute of Electrical Engineering Chinese Academy Sciences (IEECAS) and Himin Solar Co., Ltd. (HSC) cooperated to develop solar receivers for the first 50 MW parabolic trough project in Inner Mongolia, China. This paper examines overall heat loss, end loss and thermal emittance of the coating of a newly designed receiver in order to evaluate its thermal characterization. A series of heat loss tests are conducted in a newly developed test stand following the steady state equilibrium method. The tests provide a correlation between heat loss and the absorber temperature. This paper presents a new testing method to accurately test the coating emittance. The method uses a receiver with a high vacuum system and a vacuum gauge to maintain continuous exhaust and high vacuum throughout the heat loss testing. A heat loss comparison between the receiver and other existing receivers provides a reference that enabled further optimization. Theoretical and experimental analysis examines the effects of end loss both with and without a heat insulator and a coil heater. The emittance curves of different coatings are acquired and the reasons for initial emittance decrease and then remarkable increase versus temperature are analyzed

  18. Performance and durability testing of parabolic trough receivers

    Science.gov (United States)

    Lei, Dongqiang; Fu, Xuqiang; Zhao, Dongming; Yuan, Guofeng; Wang, Zhifeng; Guo, Minghuan

    2017-06-01

    The paper describes the key performance and durability testing facilities of the parabolic trough receiver developed by Institute of Electrical Engineering, Chinese Academy of Sciences. The indoor heat loss test can be applied at 4-7 different temperature levels within 200-550 on receivers. The optical efficiency test bench consists of 12 metal halide lamps as the solar simulator and a 5 m length half-elliptical cylinder reflector with flat end reflectors. 3 ultra-precision temperature sensors are used in receiver each end to get the temperature difference. The residual gas analysis test bench is applied to analyze and predict the vacuum lifetime of the receiver. It can test the variations of composition and partial pressure of residual gases with temperature and time in the receiver annulus space by a high sensitivity quadrupole mass spectrometer gas analyzer. A coating accelerated ageing test bench, which is also used to test the thermal cycle, has been developed. This test bench uses the absorber tube of the recevier as the resistance heater to heat up the whole receiver. The coating lifetime can be predicted by the Arrhenius parameters. For the cycling test, the compressed air is used to directly cool the inner surface of the absorber tube. The thermal cycling test is performed with temperature cycles from 150 °C to 450 °C for 160 cycles. The maximum thermal cycling frequency is 8 cycles per day. The mechanical fatigue test bench is used to test the bellows and the glass-to-metal seals durability at the same time. Both bellows are expanded and compressed to 6.5 mm in turn with 10,000 cycles. A new rotating test bench was also developed to test the thermal efficiency of the receiver.

  19. Journal of Earth System Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science. G Sasibhushana Rao. Articles written in Journal of Earth System Science. Volume 116 Issue 5 October 2007 pp 407-411. GPS satellite and receiver instrumental biases estimation using least squares method for accurate ionosphere modelling · G Sasibhushana Rao.

  20. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Kathmandu, Nepal; Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560012, India. Dates. Manuscript received: 9 October 2014; Manuscript revised: 31 January 2015; Accepted: 3 February 2015. Supplementary Material. supp7.doc. Journal of Chemical Sciences. Current Issue : Vol.

  1. Elementary Students' Retention of Environmental Science Knowledge: Connected Science Instruction versus Direct Instruction

    Science.gov (United States)

    Upadhyay, Bhaskar; DeFranco, Cristina

    2008-01-01

    This study compares 3rd-grade elementary students' gain and retention of science vocabulary over time in two different classes--"connected science instruction" versus "direct instruction." Data analysis yielded that students who received connected science instruction showed less gain in science knowledge in the short term compared to students who…

  2. Presenting Food Science Effectively

    Science.gov (United States)

    Winter, Carl K.

    2016-01-01

    While the need to present food science information effectively is viewed as a critical competency for food scientists by the Institute of Food Technologists, most food scientists may not receive adequate training in this area. Effective presentations combine both scientific content and delivery mechanisms that demonstrate presenter enthusiasm for…

  3. Concentrated solar power generation using solar receivers

    Science.gov (United States)

    Anderson, Bruce N.; Treece, William Dean; Brown, Dan; Bennhold, Florian; Hilgert, Christoph

    2017-08-08

    Inventive concentrated solar power systems using solar receivers, and related devices and methods, are generally described. Low pressure solar receivers are provided that function to convert solar radiation energy to thermal energy of a working fluid, e.g., a working fluid of a power generation or thermal storage system. In some embodiments, low pressure solar receivers are provided herein that are useful in conjunction with gas turbine based power generation systems.

  4. RF subsystem design for microwave communication receivers

    Science.gov (United States)

    Bickford, W. J.; Brodsky, W. G.

    A system review of the RF subsystems of (IFF) transponders, tropscatter receivers and SATCOM receivers is presented. The quantity potential for S-band and X-band IFF transponders establishes a baseline requirement. From this, the feasibility of a common design for these and other receivers is evaluated. Goals are established for a GaAs MMIC (monolithic microwave integrated circuit) device and related local oscillator preselector and self-test components.

  5. Receiver function estimated by maximum entropy deconvolution

    Institute of Scientific and Technical Information of China (English)

    吴庆举; 田小波; 张乃铃; 李卫平; 曾融生

    2003-01-01

    Maximum entropy deconvolution is presented to estimate receiver function, with the maximum entropy as the rule to determine auto-correlation and cross-correlation functions. The Toeplitz equation and Levinson algorithm are used to calculate the iterative formula of error-predicting filter, and receiver function is then estimated. During extrapolation, reflective coefficient is always less than 1, which keeps maximum entropy deconvolution stable. The maximum entropy of the data outside window increases the resolution of receiver function. Both synthetic and real seismograms show that maximum entropy deconvolution is an effective method to measure receiver function in time-domain.

  6. Effects of Oxytocin Administration on Receiving Help.

    Science.gov (United States)

    Human, Lauren J; Woolley, Joshua D; Mendes, Wendy Berry

    2017-11-27

    Receiving help can be a "mixed blessing." Despite the many psychosocial benefits it can carry, it sometimes has negative psychological consequences, such as loss in self-esteem or enhanced guilt. It is, therefore, important to understand the factors that modify responses to receiving help from others. We explored the role of the hormone oxytocin (OT) on affective and social responses to receiving help, given the putative role of OT in social bonding and attunement. To this end, we manipulated whether help was received from a same-sex interaction partner (confederate) versus a control condition, crossed with a double-blind administration of intranasal OT (vs. placebo), and examined subjective and observer-rated participant responses to help. We observed significant interactions between OT and the help manipulation. In the placebo condition, receiving help from the interaction partner compared with the control condition had negative consequences, such that participants reported greater negative affect and came to view themselves and their interaction partners more negatively after interacting together on several tasks. What is important, however, is that OT administration buffered against these negative subjective responses to receiving help. Further, outside observers rated participants who received OT administration as expressing greater happiness and gratitude in response to help, relative to those who received placebo. In sum, in the context of receiving help from a stranger, oxytocin administration fostered more positive affective and social responses. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  7. Shipping/Receiving and Quality Control

    Data.gov (United States)

    Federal Laboratory Consortium — Shipping receiving, quality control, large and precise inspection and CMM machines. Coordinate Measuring Machines, including "scanning" probes, optical comparators,...

  8. Compressive Sensing for Spread Spectrum Receivers

    DEFF Research Database (Denmark)

    Fyhn, Karsten; Jensen, Tobias Lindstrøm; Larsen, Torben

    2013-01-01

    With the advent of ubiquitous computing there are two design parameters of wireless communication devices that become very important: power efficiency and production cost. Compressive sensing enables the receiver in such devices to sample below the Shannon-Nyquist sampling rate, which may lead...... the bit error rate performance is degraded by the subsampling in the CS-enabled receivers, this may be remedied by including quantization in the receiver model.We also study the computational complexity of the proposed receiver design under different sparsity and measurement ratios. Our work shows...

  9. Bollasina Receives 2013 James R. Holton Junior Scientist Award: Response

    Science.gov (United States)

    Bollasina, Massimo A.

    2014-08-01

    I am deeply honored to have been selected as this year's recipient of the James R. Holton Junior Scientist Award, and I receive it with heartfelt gratitude and humility. I clearly remember Peter Webster's call announcing the amazing news and how I literally remained speechless and overwhelmed. I would like to express my sincere appreciation to the Atmospheric Sciences section of AGU and the members of the award committee. I am even more appreciative to have been presented this award handed by two outstanding scientists—Peter Webster and Bill Lau—who have remarkably contributed to our understanding of the Asian monsoon and tropical climate, my area of expertise.

  10. Primary Science Interview: Science Sparks

    Science.gov (United States)

    Bianchi, Lynne

    2016-01-01

    In this "Primary Science" interview, Lynne Bianchi talks with Emma Vanstone about "Science Sparks," which is a website full of creative, fun, and exciting science activity ideas for children of primary-school age. "Science Sparks" started with the aim of inspiring more parents to do science at home with their…

  11. An SDR based AIS receiver for satellites

    DEFF Research Database (Denmark)

    Larsen, Jesper Abildgaard; Mortensen, Hans Peter; Nielsen, Jens Frederik Dalsgaard

    2011-01-01

    For a few years now, there has been a high interest in monitoring the global ship traffic from space. A few satellite, capable of listening for ship borne AIS transponders have already been launched, and soon the AAUSAT3, carrying two different types of AIS receivers will also be launched. One...... of the AIS receivers onboard AAUSAT3 is an SDR based AIS receiver. This paper serves to describe the background of the AIS system, and how the SDR based receiver has been integrated into the AAUSAT3 satellite. Amongst some of the benefits of using an SDR based receiver is, that due to its versatility, new...... detection algorithms are easily deployed, and it is easily adapted the new proposed AIS transmission channels....

  12. Heat receiving plates in thermonuclear device

    International Nuclear Information System (INIS)

    Kitamura, Kazunori.

    1988-01-01

    Purpose: To obtain a heat receiving plate structure capable of withstanding sputtering wear and retaining the thermal deformation and residual stress low upon junction and available at a reduced cost. Constitution: Junction structures between heat sinks and armours are the same as usual, whereas high melting armour (for example, made of tungsten) are used at the portion on a heat receiving plate where the thermal load and particle load are higher while materials having a heat expansion coefficient similar to that of the heat sink (stainless steel) are used at the portion where the thermal load and particle load are lower on a heat receiving plate depending on the thermal load and particle load distribution. This can reduce the thermal deformation for the entire divertor heat receiving plate to obtain a heat receiving plate of a good surface dimensional accuracy. (Takahashi, M.)

  13. High thermal load receiving heat plate

    International Nuclear Information System (INIS)

    Shibutani, Jun-ichi; Shibayama, Kazuhito; Yamamoto, Keiichi; Uchida, Takaho.

    1993-01-01

    The present invention concerns a high thermal load heat receiving plate such as a divertor plate of a thermonuclear device. The high thermal load heat receiving plate of the present invention has a cooling performance capable of suppressing the temperature of an armour tile to less than a threshold value of the material against high thermal loads applied from plasmas. Spiral polygonal pipes are inserted in cooling pipes at a portion receiving high thermal loads in the high temperature load heat receiving plate of the present invention. Both ends of the polygonal pipes are sealed by lids. An area of the flow channel in the cooling pipes is thus reduced. Heat conductivity on the cooling surface of the cooling pipes is increased in the high thermal load heat receiving plate having such a structure. Accordingly, temperature elevation of the armour tile can be suppressed. (I.S.)

  14. Communicating Science

    Science.gov (United States)

    Russell, Nicholas

    2009-10-01

    Introduction: what this book is about and why you might want to read it; Prologue: three orphans share a common paternity: professional science communication, popular journalism, and literary fiction are not as separate as they seem; Part I. Professional Science Communication: 1. Spreading the word: the endless struggle to publish professional science; 2. Walk like an Egyptian: the alien feeling of professional science writing; 3. The future's bright? Professional science communication in the age of the internet; 4. Counting the horse's teeth: professional standards in science's barter economy; 5. Separating the wheat from the chaff: peer review on trial; Part II. Science for the Public: What Science Do People Need and How Might They Get It?: 6. The Public Understanding of Science (PUS) movement and its problems; 7. Public engagement with science and technology (PEST): fine principle, difficult practice; 8. Citizen scientists? Democratic input into science policy; 9. Teaching and learning science in schools: implications for popular science communication; Part III. Popular Science Communication: The Press and Broadcasting: 10. What every scientist should know about mass media; 11. What every scientist should know about journalists; 12. The influence of new media; 13. How the media represents science; 14. How should science journalists behave?; Part IV. The Origins of Science in Cultural Context: Five Historic Dramas: 15. A terrible storm in Wittenberg: natural knowledge through sorcery and evil; 16. A terrible storm in the Mediterranean: controlling nature with white magic and religion; 17. Thieving magpies: the subtle art of false projecting; 18. Foolish virtuosi: natural philosophy emerges as a distinct discipline but many cannot take it seriously; 19. Is scientific knowledge 'true' or should it just be 'truthfully' deployed?; Part V. Science in Literature: 20. Science and the Gothic: the three big nineteenth-century monster stories; 21. Science fiction: serious

  15. The Ideology of Political Science

    Science.gov (United States)

    Heiden, Bruce

    2013-01-01

    In a recent article in "Academic Questions" political scientists Robert Maranto and Matthew C. Woessner have suggested a program to reform their discipline and enhance its social utility. They encourage researchers to engage with consequential social issues and educate the public, while admonishing political scientists to resist partisan advocacy…

  16. Preparing Future Secondary Computer Science Educators

    Science.gov (United States)

    Ajwa, Iyad

    2007-01-01

    Although nearly every college offers a major in computer science, many computer science teachers at the secondary level have received little formal training. This paper presents details of a project that could make a significant contribution to national efforts to improve computer science education by combining teacher education and professional…

  17. Fundamentals of GPS Receivers A Hardware Approach

    CERN Document Server

    Doberstein, Dan

    2012-01-01

    While much of the current literature on GPS receivers is aimed at those intimately familiar with their workings, this volume summarizes the basic principles using as little mathematics as possible, and details the necessary specifications and circuits for constructing a GPS receiver that is accurate to within 300 meters. Dedicated sections deal with the features of the GPS signal and its data stream, the details of the receiver (using a hybrid design as exemplar), and more advanced receivers and topics including time and frequency measurements. Later segments discuss the Zarlink GPS receiver chip set, as well as providing a thorough examination of the TurboRogue receiver, one of the most accurate yet made. Guiding the reader through the concepts and circuitry, from the antenna to the solution of user position, the book’s deployment of a hybrid receiver as a basis for discussion allows for extrapolation of the core ideas to more complex, and more accurate designs. Digital methods are used, but any analogue c...

  18. GPU Acceleration of DSP for Communication Receivers.

    Science.gov (United States)

    Gunther, Jake; Gunther, Hyrum; Moon, Todd

    2017-09-01

    Graphics processing unit (GPU) implementations of signal processing algorithms can outperform CPU-based implementations. This paper describes the GPU implementation of several algorithms encountered in a wide range of high-data rate communication receivers including filters, multirate filters, numerically controlled oscillators, and multi-stage digital down converters. These structures are tested by processing the 20 MHz wide FM radio band (88-108 MHz). Two receiver structures are explored: a single channel receiver and a filter bank channelizer. Both run in real time on NVIDIA GeForce GTX 1080 graphics card.

  19. Global Positioning System receiver evaluation results

    Energy Technology Data Exchange (ETDEWEB)

    Byrne, R.H.

    1993-09-01

    A Sandia project currently uses an outdated Magnavox 6400 Global Positioning System (GPS) receiver as the core of its navigation system. The goal of this study was to analyze the performance of the current GPS receiver compared to newer, less expensive models and to make recommendations on how to improve the performance of the overall navigation system. This paper discusses the test methodology used to experimentally analyze the performance of different GPS receivers, the test results, and recommendations on how an upgrade should proceed. Appendices contain detailed information regarding the raw data, test hardware, and test software.

  20. Decoding algorithm for vortex communications receiver

    Science.gov (United States)

    Kupferman, Judy; Arnon, Shlomi

    2018-01-01

    Vortex light beams can provide a tremendous alphabet for encoding information. We derive a symbol decoding algorithm for a direct detection matrix detector vortex beam receiver using Laguerre Gauss (LG) modes, and develop a mathematical model of symbol error rate (SER) for this receiver. We compare SER as a function of signal to noise ratio (SNR) for our algorithm and for the Pearson correlation algorithm. To our knowledge, this is the first comprehensive treatment of a decoding algorithm of a matrix detector for an LG receiver.

  1. Exploiting Redundancy in an OFDM SDR Receiver

    Directory of Open Access Journals (Sweden)

    Tomas Palenik

    2009-01-01

    Full Text Available Common OFDM system contains redundancy necessary to mitigate interblock interference and allows computationally effective single-tap frequency domain equalization in receiver. Assuming the system implements an outer error correcting code and channel state information is available in the receiver, we show that it is possible to understand the cyclic prefix insertion as a weak inner ECC encoding and exploit the introduced redundancy to slightly improve error performance of such a system. In this paper, an easy way to implement modification to an existing SDR OFDM receiver is presented. This modification enables the utilization of prefix redundancy, while preserving full compatibility with existing OFDM-based communication standards.

  2. Evaluation Science

    Science.gov (United States)

    Patton, Michael Quinn

    2018-01-01

    Culturally and politically science is under attack. The core consequence of perceiving and asserting evaluation as science is that it enhances our credibility and effectiveness in supporting the importance of science in our world and brings us together with other scientists to make common cause in supporting and advocating for science. Other…

  3. Science/s.

    Directory of Open Access Journals (Sweden)

    Emmanuelle Tricoire

    2005-03-01

    Full Text Available Un forum a été organisé en mars par la Commission européenne. Il s’appelait « Science in Society ». Depuis 2000 la Commission a mis en place un Plan d’Action élaboré pour que soit promue « la science » au sein du public, afin que les citoyens prennent de bonnes décisions, des décisions informées. Il s’agit donc de développer la réflexivité au sein de la société, pour que cette dernière agisse avec discernement dans un monde qu’elle travaille à rendre durable. ...

  4. 29 CFR 1926.306 - Air receivers.

    Science.gov (United States)

    2010-07-01

    ... transportation vehicles such as steam railroad cars, electric railway cars, and automotive equipment. (2) New and... manholes therein are easily accessible. Under no circumstances shall an air receiver be buried underground...

  5. 29 CFR 1910.169 - Air receivers.

    Science.gov (United States)

    2010-07-01

    ... and equipment used on transportation vehicles such as steam railroad cars, electric railway cars, and... therein are easily accessible. Under no circumstances shall an air receiver be buried underground or...

  6. 47 CFR 32.1170 - Receivables.

    Science.gov (United States)

    2010-10-01

    ... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.1170 Receivables. (a... of interest accrued to the date of the balance sheet on bonds, notes, and other commercial paper...

  7. Optical Coherent Receiver Enables THz Wireless Bridge

    DEFF Research Database (Denmark)

    Yu, Xianbin; Liu, Kexin; Zhang, Hangkai

    2016-01-01

    We experimentally demonstrated a 45 Gbit/s 400 GHz photonic wireless communication system enabled by an optical coherent receiver, which has a high potential in fast recovery of high data rate connections, for example, in disaster....

  8. Storage rack for fuel cell receiving shrouds

    International Nuclear Information System (INIS)

    Mollon, L.

    1978-01-01

    Disclosed is a rack for receiving a multiplicity of vertical tubular shrouds or tubes for storing spent nuclear fuel cells. The rack comprises a plurality of horizontally reticulated frames interconnected by tension rods and spacing tubes surrounding the rods

  9. List of Nuclear Materials Licensing Actions Received

    Data.gov (United States)

    Nuclear Regulatory Commission — A catalog of all Materials Licensing Actions received for review. The catalog lists the name of the entity submitting the license application, their city and state,...

  10. Single-Receiver GPS Phase Bias Resolution

    Science.gov (United States)

    Bertiger, William I.; Haines, Bruce J.; Weiss, Jan P.; Harvey, Nathaniel E.

    2010-01-01

    Existing software has been modified to yield the benefits of integer fixed double-differenced GPS-phased ambiguities when processing data from a single GPS receiver with no access to any other GPS receiver data. When the double-differenced combination of phase biases can be fixed reliably, a significant improvement in solution accuracy is obtained. This innovation uses a large global set of GPS receivers (40 to 80 receivers) to solve for the GPS satellite orbits and clocks (along with any other parameters). In this process, integer ambiguities are fixed and information on the ambiguity constraints is saved. For each GPS transmitter/receiver pair, the process saves the arc start and stop times, the wide-lane average value for the arc, the standard deviation of the wide lane, and the dual-frequency phase bias after bias fixing for the arc. The second step of the process uses the orbit and clock information, the bias information from the global solution, and only data from the single receiver to resolve double-differenced phase combinations. It is called "resolved" instead of "fixed" because constraints are introduced into the problem with a finite data weight to better account for possible errors. A receiver in orbit has much shorter continuous passes of data than a receiver fixed to the Earth. The method has parameters to account for this. In particular, differences in drifting wide-lane values must be handled differently. The first step of the process is automated, using two JPL software sets, Longarc and Gipsy-Oasis. The resulting orbit/clock and bias information files are posted on anonymous ftp for use by any licensed Gipsy-Oasis user. The second step is implemented in the Gipsy-Oasis executable, gd2p.pl, which automates the entire process, including fetching the information from anonymous ftp

  11. Flexible receiver adapter formal design review

    International Nuclear Information System (INIS)

    Krieg, S.A.

    1995-01-01

    This memo summarizes the results of the Formal (90%) Design Review process and meetings held to evaluate the design of the Flexible Receiver Adapters, support platforms, and associated equipment. The equipment is part of the Flexible Receiver System used to remove, transport, and store long length contaminated equipment and components from both the double and single-shell underground storage tanks at the 200 area tank farms

  12. Anatomy of a digital coherent receiver

    DEFF Research Database (Denmark)

    Borkowski, Robert; Zibar, Darko; Tafur Monroy, Idelfonso

    2014-01-01

    , orthonormaliation, chromatic dispersion compensation/nonlinear compensation, resampling a nd timing recovery, polarization demultiplexing and equalization, frequency and phase recovery, digital demodulation. We also describe novel subsystems of a digital coherent receiver: modulation format recognition......Digital coherent receivers have gained significant attention in the last decade. The reason for this is that coherent detection, along with digital signal processing (DSP) allows for substantial increase of the channel capacity by employing advanced detection techniques. In this paper, we first...

  13. Managing the space sciences

    Science.gov (United States)

    1995-01-01

    In April 1994 the National Research Council received a request from NASA that the NRC's Space Studies Board provide guidance on questions relating to the management of NASA's programs in the space sciences. The issues raised in the request closely reflect questions posed in the agency's fiscal year 1994 Senate appropriations report. These questions included the following: Should all the NASA space science programs be gathered into a 'National Institute for Space Science'? What other organizational changes might be made to improve the coordination and oversight of NASA space science programs? What processes should be used for establishing interdisciplinary science priorities based on scientific merit and other criteria, while ensuring opportunities for newer fields and disciplines to emerge? And what steps could be taken to improve utilization of advanced technologies in future space scienc missions? This report details the findings of the Committee on the Future of Space Science (FOSS) and its three task groups: the Task Group on Alternative Organizations, Task Group on Research Prioritization, and the Task Group on Technology.

  14. Efficient receiver tuning using differential evolution strategies

    Science.gov (United States)

    Wheeler, Caleb H.; Toland, Trevor G.

    2016-08-01

    Differential evolution (DE) is a powerful and computationally inexpensive optimization strategy that can be used to search an entire parameter space or to converge quickly on a solution. The Kilopixel Array Pathfinder Project (KAPPa) is a heterodyne receiver system delivering 5 GHz of instantaneous bandwidth in the tuning range of 645-695 GHz. The fully automated KAPPa receiver test system finds optimal receiver tuning using performance feedback and DE. We present an adaptation of DE for use in rapid receiver characterization. The KAPPa DE algorithm is written in Python 2.7 and is fully integrated with the KAPPa instrument control, data processing, and visualization code. KAPPa develops the technologies needed to realize heterodyne focal plane arrays containing 1000 pixels. Finding optimal receiver tuning by investigating large parameter spaces is one of many challenges facing the characterization phase of KAPPa. This is a difficult task via by-hand techniques. Characterizing or tuning in an automated fashion without need for human intervention is desirable for future large scale arrays. While many optimization strategies exist, DE is ideal for time and performance constraints because it can be set to converge to a solution rapidly with minimal computational overhead. We discuss how DE is utilized in the KAPPa system and discuss its performance and look toward the future of 1000 pixel array receivers and consider how the KAPPa DE system might be applied.

  15. Science Fiction and Science Education.

    Science.gov (United States)

    Cavanaugh, Terence

    2002-01-01

    Uses science fiction films such as "Jurassic Park" or "Anaconda" to teach science concepts while fostering student interest. Advocates science fiction as a teaching tool to improve learning and motivation. Describes how to use science fiction in the classroom with the sample activity Twister. (YDS)

  16. A case of tribal defilement in a Kenyan rural village: A narratological and socio-rhetorical function of the motifs of ‘hearing and understanding’ and ‘contrast’ in Matthew 15:10–11 vis-à-vis Leviticus 11:1–4

    Directory of Open Access Journals (Sweden)

    Ferdinand M. M’bwangi

    2011-08-01

    Full Text Available This article employed a case study to explore the theme of defilement as experienced in a Kenyan village. To provide a basis for the theological reflection on this case study, the article investigated two motifs in Matthew 15:10–11. ‘Hearing and understanding’ and ‘contrast’ [[Refer to PDF], ‘not…but’] was examined in respect of Leviticus 11:1–8 to determine the extent to which Matthew 15:10–11 depicts Jesus as ‘relativising’ the Mosaic law (Lv 11:1–8. This approach provided a basis to argue that defilement in Matthew 15:10–11 is not only a matter of external or ritual perspective, but of moral disposition. A methodology that combines both socio-rhetorical (Socio-rhetorical criticism is a methodology that derives value and meaning as an outcome of an active reading process that occurs within specific cultural contexts. In this case, the examiner produced the meaning of given texts by participating in a complex of socially constructed practices’ [Growler n.d., http://userwww.Service.emory. edu/~dgowler/chapter.htm] and narratological (Narratological criticism is the study of narratives that involves a kind of ‘structure and practice that illuminates temporality and human beings as temporal beings’. Using classifications such as plot, narrator and narratee, narratology becomes a useful instrument for the description, classification and interpretation of literary narratives [see http://www.hum.aau.dk/~yding/storytelling/narratology%20rerevisited. pdf] approaches were engaged as the most appropriate to address the concerns of this article. These two methodologies greatly helped this article to explain the meaning and significance of defilement in Leviticus 11 with respect to the theological understanding of the Leviticus code of purity. This code presents a temporal view of defilement intended to reflect on the holiness and sovereignty of Yahweh, over and against idols of the surrounding nations. In addition, this

  17. Os estatutos econômicos dos primeiros cristãos: análise das formas literárias em Mateus 6, 19-34 (The early Christians’ economic statutes: analysis of literary forms in Saint Matthew 6, 19-34 - DOI: 10.5752/P.2175-5841.2009v7n15p73

    Directory of Open Access Journals (Sweden)

    Anderson de Oliveira Lima

    2010-04-01

    Full Text Available Este artigo apresenta uma proposta para a interpretação de Mateus 6.19-34 a partir da análise das formas. A atenção dada pelo autor às estruturas poéticas desta unidade textual é aqui destacada para que os textos sejam lidos de acordo com suas próprias exigências estilísticas. Além destes textos, que tratam especificamente do problema econômico dentro do grupo mateano, a estrutura dada pelo autor ao chamado sermão da montanha (caps. 5-7 também é abordada como evidência do esmero formal próprio de Mateus. Ao tratar desta pequena amostra de textos, pretende-se esboçar algumas imagens para compreender sócio-economicamente o grupo de Mateus em seu ambiente urbano na Galiléia ao final do século I, cenário que o distinguia dos seguidores de Jesus da primeira geração que eram camponeses pauperizados que se tornavam profetas itinerantes. Por fim, a exegese nos conduz à hipótese de que por suas peculiaridades o grupo mateano é forçado a reler as tradições herdadas sob novas perspectivas, onde a pobreza é uma opção obrigatória para esse novo e judaísmo-cristão citadino.Palavras-chaves: Evangelho de Mateus; Exegese; Cristianismo primitivo; Economia; Sermão da Montanha. AbstractThis article offers an interpretation of Matthew 6, 19-34 starting from the analysis of forms. The poetic structure of this textual unit is highlighted so that the texts can be read according to their own stylistic framework. Besides that text, which deals specifically with economic problems in Matthew's group, the structure of the Sermon on the Mountain (Mt 5-7 is also evidence of the formal care typical of Matthew. This little sample of texts aims to delineate some images in order to know Matthew's group, in social and economic terms, within the urban environment in Galilee by the end of the 1st century, a milieu that distinguished the group from the first generation of Christians, all of them poor farmers transformed into wandering prophets

  18. An exploration of middle school science teachers' understandings and teaching practice of science as inquiry

    Science.gov (United States)

    Castle, Margaret Ann

    A number of reports have raised a concern that the U.S. is not meeting the demands of 21st century skill preparation of students, teachers, and practitioners in the areas of science, technology, engineering, and mathematics (STEM). In 2005 and 2006 five reports were released indicating a need for improvement in science and mathematics education in the U.S. The reports were: Keeping America Competitive: Five Strategies To Improve Mathematics and Science Education (Coble & Allen, 2005); National Defense Education and Innovation Initiative: Meeting America's Economic and Security Challenges in the 21st Century (The Association of American Universities, 2006); Rising Above the Gathering Storm: Energizing and Employing America for a Brighter Economic Future (National Academies Press, 2007); Tapping America's Potential: The Education for Innovation Initiative (Business Roundtable Taskforce , 2005); and Waiting for Sputnik: Basic Research and Strategic Competition (Lewis, 2005). Consensus of data in these reports indicates that the U.S., as compared to other industrialized nations, does not fare very well in science achievement and STEM degree attainment. For example, on the 2003 Program for International Assessment (PISA), 15-year-old students in the U.S. ranked 28th in math and 24th in science literacy (Kuenzi, Matthews, & Mangon, 2006). Furthermore, the U.S. ranked 20th among all nations in the proportion of 24-year-olds who earned degrees in natural sciences or engineering (Kuenzi, 2008). As a result, if the U.S. is to remain scientifically and technologically competitive in the world, it is necessary to increase our efforts to incorporate scientific practices associated with science, technology, engineering, and mathematics into the science classroom. Middle school is a critical point in students' science education and it is in middle school that they begin to dislike science. Research indicates that when students learn science through inquiry their interest in and

  19. 78 FR 58568 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2013-09-24

    ... certain animals and certain geographic areas a requiring special protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas. Application Details 1. Applicant... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic...

  20. 78 FR 53789 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2013-08-30

    ... certain animals and certain geographic areas a requiring special protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas. Application Details 1. Applicant... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic...

  1. ASTRID© - Advanced Solar Tubular ReceIver Design: A powerful tool for receiver design and optimization

    Science.gov (United States)

    Frantz, Cathy; Fritsch, Andreas; Uhlig, Ralf

    2017-06-01

    In solar tower power plants the receiver is one of the critical components. It converts the solar radiation into heat and must withstand high heat flux densities and high daily or even hourly gradients (due to passage of clouds). For this reason, the challenge during receiver design is to find a reasonable compromise between receiver efficiency, reliability, lifetime and cost. There is a strong interaction between the heliostat field, the receiver and the heat transfer fluid. Therefore, a proper receiver design needs to consider these components within the receiver optimization. There are several design and optimization tools for receivers, but most of them focus only on the receiver, ignoring the heliostat field and other parts of the plant. During the last years DLR developed the ASTRIDcode for tubular receiver concept simulation. The code comprises both a high and a low-detail model. The low-detail model utilizes a number of simplifications which allow the user to screen a high number of receiver concepts for optimization purposes. The high-detail model uses a FE model and is able to compute local absorber and salt temperatures with high accuracy. One key strength of the ASTRIDcode is its interface to a ray tracing software which simulates a realistic heat flux distributions on the receiver surface. The results generated by the ASTRIDcode have been validated by CFD simulations and measurement data.

  2. 'Chaos' in superregenerative receivers

    Energy Technology Data Exchange (ETDEWEB)

    Commercon, Jean-Claude [INSA, Department d' Informatiques, Ba-hat t B. Pascal, 20 Avenue Albert Einsten, 69621 Villeurbaune (France)]. E-mail: jean-claude.commercon@insa-lyon.fr; Badard, Robert [INSA, Department d' Informatiques, Bat B. Pascal, 20 Avenue Albert Einsten, 69621 Villeurbaune (France)]. E-mail: robert.badard@insa-lyon.fr

    2005-02-01

    The superregenerative principle has been known since the early 1920s. The circuit is extremely simple and extremely sensitive. Today, superheterodyne receivers generally supplant superregenerative receivers in most applications because there are several undesirable characteristics: poor selectivity, reradiation, etc. Superregenerative receivers undergo a revival in recent papers for wireless systems, where low cost and very low power consumption are relevant: house/building meters (such as water, energy, gas counter), personal computer environment (keyboard, mouse), etc. Another drawback is the noise level which is higher than that of a well-designed superheterodyne receiver; without an antenna input signal, the output of the receiver hears in an earphone as a waterfall noise; this sound principally is the inherent input noise amplified and detected by the circuit; however, when the input noise is negligible with respect of an antenna input signal, we are faced to an other source of 'noise' self-generated by the superregenerative working. The main objective of this paper concerns this self-generated noise coming from an exponential growing followed by a re-injection process for which the final state is a function of the phase of the input signal.

  3. Dish/stirling hybrid-receiver

    Science.gov (United States)

    Mehos, Mark S.; Anselmo, Kenneth M.; Moreno, James B.; Andraka, Charles E.; Rawlinson, K. Scott; Corey, John; Bohn, Mark S.

    2002-01-01

    A hybrid high-temperature solar receiver is provided which comprises a solar heat-pipe-receiver including a front dome having a solar absorber surface for receiving concentrated solar energy, a heat pipe wick, a rear dome, a sidewall joining the front and the rear dome, and a vapor and a return liquid tube connecting to an engine, and a fossil fuel fired combustion system in radial integration with the sidewall for simultaneous operation with the solar heat pipe receiver, the combustion system comprising an air and fuel pre-mixer, an outer cooling jacket for tangentially introducing and cooling the mixture, a recuperator for preheating the mixture, a burner plenum having an inner and an outer wall, a porous cylindrical metal matrix burner firing radially inward facing a sodium vapor sink, the mixture ignited downstream of the matrix forming combustion products, an exhaust plenum, a fossil-fuel heat-input surface having an outer surface covered with a pin-fin array, the combustion products flowing through the array to give up additional heat to the receiver, and an inner surface covered with an extension of the heat-pipe wick, a pin-fin shroud sealed to the burner and exhaust plenums, an end seal, a flue-gas diversion tube and a flue-gas valve for use at off-design conditions to limit the temperature of the pre-heated air and fuel mixture, preventing pre-ignition.

  4. The Communication Between Designer and Design Receiver

    DEFF Research Database (Denmark)

    Dai, Zheng; Dai, Yan

    2009-01-01

    When people think about a product,the first impression always mainly influences the result.Product is the medium of communication between designer and designer receiver.Because both of them have varied different experience and background,the information would be biased during the transferring...... process.The common symbols which can be recognized by both of designer and receiver are the key tools for communication.In some case,the same symbol in one product would be leads to different receiver impression.Generally,impression includes 3 aspects:aesthetics,function, and emotion.Designer needs...... to create an attractive and accurate impression in product from these 3 aspects.For facing the dilemma of communication,some experimental approaches can help designer deal with unique and diversity situations.Solving the detail problem in each step could keep the original meaning of designer....

  5. The ARSQ: the athletes' received support questionnaire.

    Science.gov (United States)

    Freeman, Paul; Coffee, Pete; Moll, Tjerk; Rees, Tim; Sammy, Nadine

    2014-04-01

    To address calls for context-specific measurement of social support, this article reports the development of the Athletes' Received Support Questionnaire (ARSQ) and demonstrates initial evidence for its validity. Across four studies there was support for a four-dimensional structure reflecting emotional, esteem, informational, and tangible received support. There was also support for unidimensional and higher-order models. Further, Study 3 provided some support for convergent validity, with significant correlations between the corresponding dimensions of the ARSQ and the Inventory of Socially Supportive Behaviors. Study 4 provided evidence for the nomological validity of the ARSQ. Emotional and esteem support significantly predicted self-confidence and positive affect, and tangible support significantly moderated the relationship between stress and negative affect. Collectively, these results provide initial evidence for the validity of the ARSQ, and offer researchers flexibility to adopt either a multidimensional or aggregated approach to measuring received support.

  6. Precision Continuum Receivers for Astrophysical Applications

    Science.gov (United States)

    Wollack, Edward J.

    2011-01-01

    Cryogenically cooled HEMT (High Electron Mobility Transistor) amplifiers find widespread use in radioastronomy receivers. In recent years, these devices have also been commonly employed in broadband receivers for precision measurements of the Cosmic Microwave Background (CMB) radiation. In this setting, the combination of ultra-low-noise and low-spectral-resolution observations reinforce the importance achieving suitable control over the device environment to achieve fundamentally limited receiver performance. The influence of the intrinsic amplifier stability at low frequencies on data quality (e.g., achievable noise and residual temporal correlations), observational and calibration strategies, as well as architectural mitigation approaches in this setting will be discussed. The implications of device level 1/f fluctuations reported in the literature on system performance will be reviewed.

  7. Multistandard Receiver Design for Telemedicine Monitoring System

    Directory of Open Access Journals (Sweden)

    Hongmei Wang

    2018-01-01

    Full Text Available In short-distance wireless communications for telemedicine monitoring, different medical data measurement equipment has different wireless transmission modes. A multistandard receiver is designed that can adapt to different medical data measuring equipment. Using a second-order bandpass sampling for the design of antialiasing filters, two aliasing signals can be separated. Simultaneously, constraint conditions for sampling frequency are not as critical. The design is useful for a multistandard receiver in a telemedicine monitoring system and has the advantages such as saving spectrum resources and facilitating spectrum planning.

  8. Analog fourier transform channelizer and OFDM receiver

    OpenAIRE

    2007-01-01

    An OFDM receiver having an analog multiplier based I-Q channelizing filter, samples and holds consecutive analog I-Q samples of an I-Q baseband, the I-Q basebands having OFDM sub-channels. A lattice of analog I-Q multipliers and analog I-Q summers concurrently receives the held analog I-Q samples, performs analog I-Q multiplications and analog I-Q additions to concurrently generate a plurality of analog I-Q output signals, representing an N-point discrete Fourier transform of the held analog ...

  9. Building and Testing a Portable VLF Receiver

    Science.gov (United States)

    McLaughlin, Robert; Krause, L.

    2014-01-01

    Unwanted emissions or signal noise is a major problem for VLF radio receivers. These can occur from man made sources such as power line hum, which can be prevalent for many harmonics after the fundamental 50 or 60 Hz AC source or from VLF radio transmissions such as LORAN, used for navigation and communications. Natural emissions can also be detrimental to the quality of recordings as some of the more interesting natural emissions such as whistlers or auroral chorus may be drowned out by the more common sferic emissions. VLF receivers must selectively filter out unwanted emissions and amplify the filtered signal to a record-able level without degrading the quality.

  10. Billing and accounts receivable: fundamentals for improvement.

    Science.gov (United States)

    Bizon, M M

    1993-07-01

    If a healthcare facility's accounts receivable operation is experiencing problems, the patient accounts manager should survey all areas of his or her responsibility to determine the best method of resolving the difficulties. One effective technique to reduce billing problems is to take a proactive--not reactive--approach. If mistakes can be corrected before they get out of control, and if the patient accounts manager can ensure that claims will not be denied, a healthcare facility's accounts receivable should remain in good condition.

  11. Improved timing recovery in wireless mobile receivers

    CSIR Research Space (South Africa)

    Olwal, TO

    2007-06-01

    Full Text Available are transmitted to the receiver. In the proposed method, the receiver exploits the soft decisions computed at each turbo decoding iteration to provide reliable estimates of a soft timing signal, which in turn, improves the decoding time. The derived method... as ( ) ( )( )1 2 1 2, ,..., , ,...,Q Qk k k k k k k k ka a x x x P a x x xη∗ ∗∈Β= ∑ (29) where ( )1 2, ,..., Qk k kx x x are the Q coded bits in a multilevel symbol modulation scheme [32]. According to [29], the soft information demapper computes posteriori...

  12. Measuring Balance Across Multiple Radar Receiver Channels.

    Energy Technology Data Exchange (ETDEWEB)

    Doerry, Armin W.; Bickel, Douglas L.

    2018-03-01

    When radar receivers employ multiple channels, the general intent is for the receive channels to be as alike as possible, if not as ideal as possible. This is usually done via prudent hardware design, supplemented by system calibration. Towards this end, we require a quality metric for ascertaining the goodness of a radar channel, and the degree of match to sibling channels. We propose a relevant and useable metric to do just that. Acknowledgements This report was the result of an unfunded research and development activity.

  13. Sciences & Nature

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL ... Sciences & Nature, the Scientific Journal edited by the University of ... Subjects covered include agronomy, sciences of the earth, environment, biological, ...

  14. Marine Science

    African Journals Online (AJOL)

    Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue for the wide dissem- ination of high ..... circulation patterns include the nutrient-rich Somali ...... matical Structures in Computer Science 24: e240311.

  15. Hispanos en la EPA: Matthew Tejada

    Science.gov (United States)

    La diversidad de la fuerza laboral es importante para la Agencia de Protección Ambiental de EE.UU. (EPA, por sus siglas en inglés). Los empleados hispanos de la EPA contribuyen diariamente hacia la protección de la salud y el medio ambiente.

  16. MISSING MATTHEW'S MEANING. WITH 'TEXTUAL MEANING' 203 ...

    African Journals Online (AJOL)

    Stellenbosch Papers in Linguistics, Vol. 25, 1992, 203-235 .... in here is not a theory that will work well only in the less ... (Gutt's distinction between primary and secondary ... sion which I have just quoted from is both too long and too technical.

  17. Rasvased faktid / Matthew G. Kadey, Jim Stoppani

    Index Scriptorium Estoniae

    Kadey, Matthew G.

    2010-01-01

    Milliseid rasvu peaks sisaldama menüü lihaste kasvatamiseks ja milliseid tuleks vältida: monoküllastamata rasvhapped - palmitoolhape, oleiinhape; polüküllastumata rasvhapped - linoleenhape (oomega-6), alfa-linoleenhape (oomega-3), eikosapentaeenhape (EPA), dokosaheksaeenhape (DHA), konjugeeritud linoolhape (CLA); küllastunud rasvad - palmitiinhape, steariinhape, lauriinhape; transrasvad -taimeõlid, mis tahkestatud vesiniku abil hüdrogeniseeritud

  18. Matthew Jones House: Recommendations for Treatment

    Science.gov (United States)

    2016-04-01

    2015) 12 Figure 8 - Missing brick and mortar at the southeast tower main block juncture. (NCPTT, 2015) 12 Figure 9 - Northwest elevation showing...Figure 13- Parlor fireplace (northwest elevation) and masonry abutments exhibiting loss of bricks , plaster, and mortar . (NCPTT, 2015) 18 Figure...Monitoring and Evaluating Cracks in Masonry Guidelines for Evaluating the Condition of Brick Masonry and Mortar Removing Biological Growth from Exterior

  19. POWER AND AUTHORITY IN MATTHEW'S GOSPEL

    African Journals Online (AJOL)

    He sets the life of Jesus and his followers within a context ... Readers could gain confidence in the ..... powers are at work in him'” (Matt. ... a reputation for his excessive parties. ... On the deeper level the balance of power is severely tilted.

  20. Using History of Science to Teach Nature of Science to Elementary Students

    Science.gov (United States)

    Fouad, Khadija E.; Masters, Heidi; Akerson, Valarie L.

    2015-01-01

    Science lessons using inquiry only or history of science with inquiry were used for explicit reflective nature of science (NOS) instruction for second-, third-, and fourth-grade students randomly assigned to receive one of the treatments. Students in both groups improved in their understanding of creative NOS, tentative NOS, empirical NOS, and…

  1. ALICE physicists receive 2014 Lise Meitner Prize

    CERN Multimedia

    Jeanneret, Guillaume

    2014-01-01

    September 3rd, 2014: ALICE collaboration members Johanna Stachel (Heidelberg University, Germany), Peter Braun-Munzinger (GSI, Germany), Paolo Giubellino (INFN Turin, Italy, and CERN) and Jürgen Schukraft (CERN) were presented the 2014 Lise Meitner Prize at a private ceremony held in the Globe of Science and Innovation.

  2. Terra Incognita: Explanation and Reductionism in Earth Science

    NARCIS (Netherlands)

    Kleinhans, M.G.

    2005-01-01

    The present paper presents a philosophical analysis of earth science, a discipline that has received relatively little attention from philosophers of science. We focus on the question of whether earth science can be reduced to allegedly more fundamental sciences, such as chemistry or physics. In

  3. Sound Science

    Science.gov (United States)

    Sickel, Aaron J.; Lee, Michele H.; Pareja, Enrique M.

    2010-01-01

    How can a teacher simultaneously teach science concepts through inquiry while helping students learn about the nature of science? After pondering this question in their own teaching, the authors developed a 5E learning cycle lesson (Bybee et al. 2006) that concurrently embeds opportunities for fourth-grade students to (a) learn a science concept,…

  4. Richard W. Ziolkowski Receives Honorary Doctorate

    DEFF Research Database (Denmark)

    Breinbjerg, Olav

    2012-01-01

    At the annual Commemoration of the Technical University of Denmark (DTU) on April 27, 2012, Prof. Richard W. Ziolkowski, University of Arizona (UoA), received DTU's highest academic degree, the Honorary Doctor degree: Doctor Technices Honoris Causa (Figure 1). Prof. Ziolkowski has been a close...

  5. Howard Feiertag receives hospitality industry award

    OpenAIRE

    Ho, Sookhan

    2004-01-01

    Howard Feiertag, of Blacksburg, an instructor in hospitality and tourism management at Virginia Tech's Pamplin College of Business, received the inaugural Excellence in Sales and Marketing Strategy Award at the Hospitality Sales and Marketing Association/New York University Strategy Conference in New York recently.

  6. 7 CFR 966.124 - Approved receiver.

    Science.gov (United States)

    2010-01-01

    ... limited to, the following information: (1) Name, address, contact person, telephone number, and e-mail... 7 Agriculture 8 2010-01-01 2010-01-01 false Approved receiver. 966.124 Section 966.124 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements...

  7. A 24GHz Radar Receiver in CMOS

    NARCIS (Netherlands)

    Kwok, K.C.

    2015-01-01

    This thesis investigates the system design and circuit implementation of a 24GHz-band short-range radar receiver in CMOS technology. The propagation and penetration properties of EM wave offer the possibility of non-contact based remote sensing and through-the-wall imaging of distance stationary or

  8. 8. Prevalence of Epistaxis among Patients Receiving ...

    African Journals Online (AJOL)

    user

    The aim of this study was thus to determine the prevalence, aetiology and treatment modalities of epistaxis among patients receiving otorhinolaryngology services at MNH and MOI. Materials and Methods: A cross-sectional, hospital based study was done to 427 patients at Muhimbili. National Hospital (MNH) and Muhimbili.

  9. Receiving Assistance and Local Food System Participation

    Directory of Open Access Journals (Sweden)

    Rebecca L. Som Castellano

    2017-02-01

    Full Text Available A body of literature has noted that local food systems (LFSs may not involve active participation by individuals with lower incomes. This is, in part, a function of racial and class hegemony, as well as physical and financial accessibility of LFSs. LFS institutions, such as farmers’ markets, have been working to facilitate receipt of food assistance programs, such as the Supplemental Nutrition Assistance Program (SNAP. Charitable assistance programs, such as food banks, have also been actively working to engage in LFSs, for example, by making local foods available. However, little research has explored the role that receiving public or charitable assistance can play in influencing LFS participation. In this article, I utilize quantitative and qualitative data collected from across the state of Ohio to examine the relationship between receiving assistance and LFS participation for women, who remain predominately responsible for food provisioning in the U.S., including among those who participate in LFSs. Quantitative results suggest that receiving assistance can increase participation in LFSs. Qualitative data provides more nuanced information about the importance of food assistance for women who want to participate in LFSs, and suggest that it is essential that food cooperatives and farmers’ markets are equipped to receive food assistance programs, such as SNAP, in order for women with lower incomes to participate in LFSs.

  10. Reasons Parents Exempt Children from Receiving Immunizations

    Science.gov (United States)

    Luthy, Karlen E.; Beckstrand, Renea L.; Callister, Lynn C.; Cahoon, Spencer

    2012-01-01

    School nurses are on the front lines of educational efforts to promote childhood vaccinations. However, some parents still choose to exempt their children from receiving vaccinations for personal reasons. Studying the beliefs of parents who exempt vaccinations allows health care workers, including school nurses, to better understand parental…

  11. Social effects of migration in receiving countries.

    Science.gov (United States)

    Ohndorf, W

    1989-06-01

    This paper examines the impact of post-1945 migration into Western, Middle, and Northern Europe from Southern Europe, Turkey, and Northern Africa, and migration to the traditional immigration countries by Asian and Latin American immigrants, on the social structures of receiving countries. Between 1955 and 1974, 1) traditional migration to the US and Australia became less important for European countries while traditional receiving countries accepted many immigrants from developing countries; and 2) rapid economic revival in Western and Northern Europe caused a considerable labor shortage which was filled by migrant workers especially from Southern Europe, Turkey, and Northern Africa, who stayed only until they reached their economic goals. Since 1974, job vacancies have declined and unemployment has soared. This employment crisis caused some migrants 1) to return to their countries of origin, 2) to bring the rest of their families to the receiving country, or 3) to lengthen their stay considerably. The number of refugees has also significantly increased since the mid-970s, as has the number of illegal migrants. After the mid-1970s, Europe began to experience integration problems. The different aspects of the impact of migration on social structures include 1) improvement of the housing situation for foreigners, 2) teaching migrants the language of the receiving country, 3) solving the unemployment problem of unskilled migrants, 4) improvement of educational and vocational qualifications of 2nd generation migrants, 5) development of programs to help unemployed wives of migrants to learn the language and meet indigenous women, 6) encouraging migrants to maintain their cultural identity and assisting them with reintegration if they return to their original country, 7) coping with the problems of refugees, and 8) solving the problems of illegal migration. Almost all receiving countries now severely restrict further immigration. [Those policies should result in

  12. 75 FR 62891 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2010-10-13

    ... requiring special protection. The regulations establish such a permit system to designate Antarctic... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  13. 76 FR 52354 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2011-08-22

    ... requiring special protection. The regulations establish such a permit system to designate Antarctic... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  14. 77 FR 56237 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2012-09-12

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  15. 78 FR 54685 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2013-09-05

    ... certain geographic areas a requiring special protection. The regulations establish such a permit system to... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  16. 75 FR 61520 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2010-10-05

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  17. 75 FR 60830 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2010-10-01

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  18. 76 FR 58049 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2011-09-19

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  19. 75 FR 75501 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2010-12-03

    ... requiring special protection. The regulations establish such a permit system to designate Antarctic... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... applications received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  20. 75 FR 25300 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2010-05-07

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  1. 77 FR 31044 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2012-05-24

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received Under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  2. 78 FR 52218 - Notice of permit applications received under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2013-08-22

    ... certain geographic areas a requiring special protection. The regulations establish such a permit system to... NATIONAL SCIENCE FOUNDATION Notice of permit applications received under the Antarctic... applications received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  3. 78 FR 56247 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2013-09-12

    ... certain geographic areas a requiring special protection. The regulations establish such a permit system to... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  4. 75 FR 6222 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2010-02-08

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received Under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  5. 76 FR 58843 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2011-09-22

    ... requiring special protection. The regulations establish such a permit system to designate Antarctic... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic... Applications Received under the Antarctic Conservation Act of 1978, Public Law 95-541. SUMMARY: The National...

  6. Science Teaching in Science Education

    Science.gov (United States)

    Callahan, Brendan E.; Dopico, Eduardo

    2016-01-01

    Reading the interesting article "Discerning selective traditions in science education" by Per Sund, which is published in this issue of "CSSE," allows us to open the discussion on procedures for teaching science today. Clearly there is overlap between the teaching of science and other areas of knowledge. However, we must…

  7. Capabilities: Science Pillars

    Science.gov (United States)

    Alamos National Laboratory Delivering science and technology to protect our nation and promote world stability Science & Innovation Collaboration Careers Community Environment Science & Innovation Facilities Science Pillars Research Library Science Briefs Science News Science Highlights Lab Organizations

  8. Faces of Science

    Science.gov (United States)

    Alamos National Laboratory Delivering science and technology to protect our nation and promote world stability Science & Innovation Collaboration Careers Community Environment Science & Innovation Facilities Science Pillars Research Library Science Briefs Science News Science Highlights Lab Organizations

  9. Bradbury Science Museum

    Science.gov (United States)

    Alamos National Laboratory Delivering science and technology to protect our nation and promote world stability Science & Innovation Collaboration Careers Community Environment Science & Innovation Facilities Science Pillars Research Library Science Briefs Science News Science Highlights Lab Organizations

  10. Office of Science

    Science.gov (United States)

    Alamos National Laboratory Delivering science and technology to protect our nation and promote world stability Science & Innovation Collaboration Careers Community Environment Science & Innovation Facilities Science Pillars Research Library Science Briefs Science News Science Highlights Lab Organizations

  11. Investigations of Relatively Easy To Construct Antennas With Efficiency in Receiving Schumann Resonances: Preparations for a Miniaturized Reconfigurable ELF Receiver

    Science.gov (United States)

    Farmer, Brian W.; Hannan, Robert C.

    2003-01-01

    Relatively little is known about the cavity between the Earth and the ionosphere, which opens opportunities for technological advances and unique ideas. One effective means to study this cavity is with extremely low frequency (ELF) antennas. Possible applications of these antennas are global weather prediction, earthquake prediction, planetary exploration, communication, wireless transmission of power, or even a free energy source. The superconducting quantum interference device SQUID) and the coil antenna are the two most acceptable receivers discovered for picking up ELF magnetic fields. Both antennas have the potential for size reduction, allowing them to be portable enough for access to space and even for personal ware. With improvements of these antennas and signal processing, insightful analysis of Schumann resonance (SR) can give the science community a band of radio frequency (RF) signals for improving life here on Earth and exploring beyond.

  12. CERN Press Office receives award from Euroscience

    CERN Multimedia

    2009-01-01

    The CERN Communication group has received an award for its efforts in communicating the LHC first beam to the media and the public. James Gillies, head of the Communication group was presented the AlphaGalileo Research Public Relations Award on Wednesday, 14 October during the Euroscience Media Award Ceremony in Hannover. "It’s great to receive this recognition," said Gillies. "Of course, we had great material to work with: the LHC is a fantastic story and one that is going to get even better. Angels, Demons and black holes also had their roles to play, but behind the media interest there’s been a lot of hard work by my team. This is for them." The CERN Communication group also works with communication professionals in all the CERN Member States and major physics labs around the world through the European Particle Physics Communication Network, and the InterAction collaboration. "Without them," says Gillies, &am...

  13. Nutritional survey of neoplasm patients receiving radiotherapy

    International Nuclear Information System (INIS)

    Li Xinli; Zhu Shengtao

    2001-01-01

    Objective: In order to know the nutriture of neoplasm patients receiving radiotherapy and give nutritional guidance properly, the authors make the following survey. Methods: A dietary survey of twenty-four-hour retrospective method was used; The patients' activity was recorded and their twenty-four hours caloric consumption was calculated. Results: Of all the patients, the intake of protein is more than recommended, percentage of calorific proportion is about 15%-19% of gross caloric. A larger portion of patients' caloric intake, especially female patients, is lower than caloric consumption. Among all the patients, the intake of vegetables is not enough; The consumption of milk and milky products is lower; it is common and serious that neoplasm patients receiving radiotherapy have vitamine and mineral's scarcity. Conclusions: Nutriture of neoplasm patients is not optimistic, it is imperative to improve their nutriture

  14. Graphene radio frequency receiver integrated circuit.

    Science.gov (United States)

    Han, Shu-Jen; Garcia, Alberto Valdes; Oida, Satoshi; Jenkins, Keith A; Haensch, Wilfried

    2014-01-01

    Graphene has attracted much interest as a future channel material in radio frequency electronics because of its superior electrical properties. Fabrication of a graphene integrated circuit without significantly degrading transistor performance has proven to be challenging, posing one of the major bottlenecks to compete with existing technologies. Here we present a fabrication method fully preserving graphene transistor quality, demonstrated with the implementation of a high-performance three-stage graphene integrated circuit. The circuit operates as a radio frequency receiver performing signal amplification, filtering and downconversion mixing. All circuit components are integrated into 0.6 mm(2) area and fabricated on 200 mm silicon wafers, showing the unprecedented graphene circuit complexity and silicon complementary metal-oxide-semiconductor process compatibility. The demonstrated circuit performance allow us to use graphene integrated circuit to perform practical wireless communication functions, receiving and restoring digital text transmitted on a 4.3-GHz carrier signal.

  15. Hypersensitivity reactions in patients receiving hemodialysis.

    Science.gov (United States)

    Butani, Lavjay; Calogiuri, Gianfranco

    2017-06-01

    To describe hypersensitivity reactions in patients receiving maintenance hemodialysis. PubMed search of articles published during the past 30 years with an emphasis on publications in the past decade. Case reports and review articles describing hypersensitivity reactions in the context of hemodialysis. Pharmacologic agents are the most common identifiable cause of hypersensitivity reactions in patients receiving hemodialysis. These include iron, erythropoietin, and heparin, which can cause anaphylactic or pseudoallergic reactions, and topical antibiotics and anesthetics, which lead to delayed-type hypersensitivity reactions. Many hypersensitivity reactions are triggered by complement activation and increased bradykinin resulting from contact system activation, especially in the context of angiotensin-converting enzyme inhibitor use. Several alternative pharmacologic preparations and dialyzer membranes are available, such that once an etiology for the reaction is established, recurrences can be prevented without affecting the quality of care provided to patients. Although hypersensitivity reactions are uncommon in patients receiving hemodialysis, they can be life-threatening. Moreover, considering the large prevalence of the end-stage renal disease population, the implications of such reactions are enormous. Most reactions are pseudoallergic and not mediated by immunoglobulin E. The multiplicity of potential exposures and the complexity of the environment to which patients on dialysis are exposed make it challenging to identify the precise cause of these reactions. Great diligence is needed to investigate hypersensitivity reactions to avoid recurrence in this high-risk population. Copyright © 2017 American College of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.

  16. TDRSS S-shuttle unique receiver equipment

    Science.gov (United States)

    Weinberg, A.; Schwartz, J. J.; Spearing, R.

    1985-01-01

    Beginning with STS-9, the Tracking and Date Relay Satellite system (TDRSS) will start providing S- and Ku-band communications and tracking support to the Space Shuttle and its payloads. The most significant element of this support takes place at the TDRSS White Sands Ground Terminal, which processes the Shuttle return link S- and Ku-band signals. While Ku-band hardware available to other TDRSS users is also applied to Ku-Shuttle, stringent S-Shuttle link margins have precluded the application of the standard TDRSS S-band processing equipment to S-Shuttle. It was therfore found necessary to develop a unique S-Shuttle Receiver that embodies state-of-the-art digital technology and processing techniques. This receiver, developed by Motorola, Inc., enhances link margins by 1.5 dB relative to the standard S-band equipment and its bit error rate performance is within a few tenths of a dB of theory. An overview description of the Space Shuttle Receiver Equipment (SSRE) is presented which includes the presentation of block diagrams and salient design features. Selected, measured performance results are also presented.

  17. A Decentralized Receiver in Gaussian Interference

    Directory of Open Access Journals (Sweden)

    Christian D. Chapman

    2018-04-01

    Full Text Available Bounds are developed on the maximum communications rate between a transmitter and a fusion node aided by a cluster of distributed receivers with limited resources for cooperation, all in the presence of an additive Gaussian interferer. The receivers cannot communicate with one another and can only convey processed versions of their observations to the fusion center through a Local Array Network (LAN with limited total throughput. The effectiveness of each bound’s approach for mitigating a strong interferer is assessed over a wide range of channels. It is seen that, if resources are shared effectively, even a simple quantize-and-forward strategy can mitigate an interferer 20 dB stronger than the signal in a diverse range of spatially Ricean channels. Monte-Carlo experiments for the bounds reveal that, while achievable rates are stable when varying the receiver’s observed scattered-path to line-of-sight signal power, the receivers must adapt how they share resources in response to this change. The bounds analyzed are proven to be achievable and are seen to be tight with capacity when LAN resources are either ample or limited.

  18. Multifunction waveform generator for EM receiver testing

    Science.gov (United States)

    Chen, Kai; Jin, Sheng; Deng, Ming

    2018-01-01

    In many electromagnetic (EM) methods - such as magnetotelluric, spectral-induced polarization (SIP), time-domain-induced polarization (TDIP), and controlled-source audio magnetotelluric (CSAMT) methods - it is important to evaluate and test the EM receivers during their development stage. To assess the performance of the developed EM receivers, controlled synthetic data that simulate the observed signals in different modes are required. In CSAMT and SIP mode testing, the waveform generator should use the GPS time as the reference for repeating schedule. Based on our testing, the frequency range, frequency precision, and time synchronization of the currently available function waveform generators on the market are deficient. This paper presents a multifunction waveform generator with three waveforms: (1) a wideband, low-noise electromagnetic field signal to be used for magnetotelluric, audio-magnetotelluric, and long-period magnetotelluric studies; (2) a repeating frequency sweep square waveform for CSAMT and SIP studies; and (3) a positive-zero-negative-zero signal that contains primary and secondary fields for TDIP studies. In this paper, we provide the principles of the above three waveforms along with a hardware design for the generator. Furthermore, testing of the EM receiver was conducted with the waveform generator, and the results of the experiment were compared with those calculated from the simulation and theory in the frequency band of interest.

  19. Russian institute receives CMS Gold Award

    CERN Multimedia

    Patrice Loïez

    2003-01-01

    The Snezhinsk All-Russian Institute of Scientific Research for Technical Physics (VNIITF) of the Russian Federal Nuclear Centre (RFNC) is one of twelve CMS suppliers to receive awards for outstanding performance this year. The CMS Collaboration took the opportunity of the visit to CERN of the Director of VNIITF and his deputy to present the CMS Gold Award, which the institute has received for its exceptional performance in the assembly of steel plates for the CMS forward hadronic calorimeter. This calorimeter consists of two sets of 18 wedge-shaped modules arranged concentrically around the beam-pipe at each end of the CMS detector. Each module consists of steel absorber plates with quartz fibres inserted into them. The institute developed a special welding technique to assemble the absorber plates, enabling a high-quality detector to be produced at relatively low cost.RFNC-VNIITF Director Professor Georgy Rykovanov (right), is seen here receiving the Gold Award from Felicitas Pauss, Vice-Chairman of the CMS ...

  20. Submillimeter heterodyne receiver for the CSO telescope

    International Nuclear Information System (INIS)

    Gulkis, S.

    1988-01-01

    This task is to build a cryogenically cooled 620 to 700 GHz astronomical receiver that will be used as a facility instrument at the CalTech Submillimeter Observatory (CSO) on Mauna Kea, Hawaii. The receiver will have applications as a very high resolution spectrometer to investigate spectral lines in planetary and satellite atmospheres, and comets. The receiver will also be used to make continuum measurements of planets, satellites, and asteroids. During FY88, a scale model (200 GHz) SIS mixer radiometer was built and intrgrated into a cryostat designed for use on the CSO telescope. This system will serve as a model to guide the work on the higher frequency mixer. A solid state local oscillator source that covers two bands in the 600 to 700 GHz has been developed under contract JPL and will be delivered before the end of the year. Work has continued on the SIS materials needed for the 620 to 700 GHz mixer. Test hardware has been developed which allow the 1 to 5 curves for SIS material to be easily measured

  1. Towards Self-Clocked Gated OCDMA Receiver

    Science.gov (United States)

    Idris, S.; Osadola, T.; Glesk, I.

    2013-02-01

    A novel incoherent OCDMA receiver with incorporated all-optical clock recovery for self-synchronization of a time gate for the multi access interferences (MAI) suppression and minimizing the effect of data time jitter in incoherent OCDMA system was successfully developed and demonstrated. The solution was implemented and tested in a multiuser environment in an out of the laboratory OCDMA testbed with two-dimensional wavelength-hopping time-spreading coding scheme and OC-48 (2.5 Gbp/s) data rate. The self-clocked all-optical time gate uses SOA-based fibre ring laser optical clock, recovered all-optically from the received OCDMA traffic to control its switching window for cleaning the autocorrelation peak from the surrounding MAI. A wider eye opening was achieved when the all-optically recovered clock from received data was used for synchronization if compared to a static approach with the RF clock being generated by a RF synthesizer. Clean eye diagram was also achieved when recovered clock is used to drive time gating.

  2. Deconstructing science

    Science.gov (United States)

    Trifonas, Peter Pericles

    2012-12-01

    In this paper I expand on the premises of Jesse Bazzul's thesis in his paper, Neoliberal ideology, global capitalism, and science education: engaging the question of subjectivity, exploring the implications of the ideologies within the culturally emerging logic of science exposes the incommensurability of intents and purposes in its methods and epistemology. I argue that science needs to acknowledge the subjectivity at its core to make space for non-absolute agents and new fields of study.

  3. Science Bubbles

    DEFF Research Database (Denmark)

    Hendricks, Vincent Fella; Pedersen, David Budtz

    2013-01-01

    Much like the trade and trait sof bubbles in financial markets,similar bubbles appear on the science market. When economic bubbles burst, the drop in prices causes the crash of unsustainable investments leading to an investor confidence crisis possibly followed by a financial panic. But when...... bubbles appear in science, truth and reliability are the first victims. This paper explores how fashions in research funding and research management may turn science into something like a bubble economy....

  4. Science Shops

    DEFF Research Database (Denmark)

    Jørgensen, Michael Søgaard

    1999-01-01

    The paper prsents the overall concept of science shops as practised in most of the European science shops and present the concept practised and some experience obtained at the Technical University of Denmark. An outline for the planning of new sceince shops is presented.......The paper prsents the overall concept of science shops as practised in most of the European science shops and present the concept practised and some experience obtained at the Technical University of Denmark. An outline for the planning of new sceince shops is presented....

  5. Superconducting Submm Integrated Receiver for TELIS

    Energy Technology Data Exchange (ETDEWEB)

    Koshelets, V P [Institute of Radio Engineering and Electronics (IREE) (Russian Federation); Ermakov, A B [Institute of Radio Engineering and Electronics (IREE) (Russian Federation); Filippenko, L V [Institute of Radio Engineering and Electronics (IREE) (Russian Federation); Koryukin, O V [Institute of Radio Engineering and Electronics (IREE) (Russian Federation); Khudchenko, A V [Institute of Radio Engineering and Electronics (IREE) (Russian Federation); Sobolev, A S [Institute of Radio Engineering and Electronics (IREE) (Russian Federation); Torgashin, M Yu [Institute of Radio Engineering and Electronics (IREE) (Russian Federation); Yagoubov, P A [SRON National Institute for Space Research (Netherlands); Hoogeveen, R W M [SRON National Institute for Space Research (Netherlands); Vreeling, W J [SRON National Institute for Space Research (Netherlands); Wild, W [SRON National Institute for Space Research (Netherlands); Pylypenko, O M [State Research Center of Superconducting Electronics ' Iceberg' (Ukraine)

    2006-06-01

    In this report we present design and first experimental results for development of the submm superconducting integrated receiver spectrometer for Terahertz Limb Sounder (TELIS). TELIS is a collaborative European project to build up a three-channel heterodyne balloon-based spectrometer for measuring a variety of atmospheric constituents of the stratosphere. The 550 - 650 GHz channel of TELIS is based on a phase-locked Superconducting Integrated Receiver (SIR). SIR is an on-chip combination of a low-noise Superconductor-Insulator-Superconductor (SIS) mixer with quasioptical antenna, a superconducting Flux Flow Oscillator (FFO) acting as Local Oscillator (LO), and SIS harmonic mixer (HM) for FFO phase locking. A number of new solutions were implemented in the new generation of SIR chips. To achieve the wide-band performance of the spectrometer, a side-feed twin-SIS mixer and balanced SIS mixer with 0.8 {mu}m{sup 2} junctions integrated with a double-dipole (or double-slot) antenna is used. An improved design of the FFO for TELIS has been developed and optimized providing a free-running linewidth between 10 and 2 MHz in the frequency range 500 - 700 GHz. It is important to ensure that tuning of a phase-locked (PL) SIR can be performed remotely by telecommand. For this purpose a number of approaches for the PL SIR automatic computer control have been developed. All receiver components (including input optical elements and Martin-Puplett polarization rotating interferometer for single side band operation) will be mounted on a single 4.2 K plate inside a 40 x 180 x 80 mm{sup 3} box. First measurements give an uncorrected double side band (DSB) noise temperature below 250 K measured with the phase-locked FFO; more detailed results are presented at the conference.

  6. Superconducting Submm Integrated Receiver for TELIS

    International Nuclear Information System (INIS)

    Koshelets, V P; Ermakov, A B; Filippenko, L V; Koryukin, O V; Khudchenko, A V; Sobolev, A S; Torgashin, M Yu; Yagoubov, P A; Hoogeveen, R W M; Vreeling, W J; Wild, W; Pylypenko, O M

    2006-01-01

    In this report we present design and first experimental results for development of the submm superconducting integrated receiver spectrometer for Terahertz Limb Sounder (TELIS). TELIS is a collaborative European project to build up a three-channel heterodyne balloon-based spectrometer for measuring a variety of atmospheric constituents of the stratosphere. The 550 - 650 GHz channel of TELIS is based on a phase-locked Superconducting Integrated Receiver (SIR). SIR is an on-chip combination of a low-noise Superconductor-Insulator-Superconductor (SIS) mixer with quasioptical antenna, a superconducting Flux Flow Oscillator (FFO) acting as Local Oscillator (LO), and SIS harmonic mixer (HM) for FFO phase locking. A number of new solutions were implemented in the new generation of SIR chips. To achieve the wide-band performance of the spectrometer, a side-feed twin-SIS mixer and balanced SIS mixer with 0.8 μm 2 junctions integrated with a double-dipole (or double-slot) antenna is used. An improved design of the FFO for TELIS has been developed and optimized providing a free-running linewidth between 10 and 2 MHz in the frequency range 500 - 700 GHz. It is important to ensure that tuning of a phase-locked (PL) SIR can be performed remotely by telecommand. For this purpose a number of approaches for the PL SIR automatic computer control have been developed. All receiver components (including input optical elements and Martin-Puplett polarization rotating interferometer for single side band operation) will be mounted on a single 4.2 K plate inside a 40 x 180 x 80 mm 3 box. First measurements give an uncorrected double side band (DSB) noise temperature below 250 K measured with the phase-locked FFO; more detailed results are presented at the conference

  7. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Biological studies were preformed in vitro against four bacterial strains which have shown better activities and potential as antibacterial agents. Author Affiliations. Rosenani A Haque1 M A Salam1. The School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia. Dates. Manuscript received: 15 ...

  8. Proceedings – Mathematical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Dumitru Popa1. Department of Mathematics, University of Constanta, Bd. Mamaia 124, 8700 Constanta, Romania. Dates. Manuscript received: 21 January 2008; Manuscript revised: 20 June 2008. Proceedings – Mathematical Sciences. Current Issue : Vol. 128, Issue 1 · Current Issue Volume 128 | Issue 1

  9. Proceedings – Mathematical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    In the process, we prove an analogue of the well-known Fefferman–Stein's ... Department of Mathematics, Indian Institute of Science Education and ... Manuscript received: 27 October 2015; Manuscript revised: 12 September ... Early published: Unedited version published online: Final version published online: 23 July 2016 ...

  10. Discussion of mechanical design for pressured cavity-air-receiver in solar power tower system

    Energy Technology Data Exchange (ETDEWEB)

    Fan, Zhilin; Zhang, Yaoming; Liu, Deyou; Wang, Jun; Liu, Wei [Hohai Univ., Nanjing (China). New Materials and Energy Sources Research and Exploitation Inst.

    2008-07-01

    In 2005, Hohai university and Nanjing Chunhui science and technology Ltd. of China, cooperating with Weizmann Institute of Science and EDIG Ltd. of Israel, built up a 70kWe solar power tower test plant in Nanjing, Jiangsu province, China, which was regarded as the first demonstration project to demonstrate the feasibility of solar power tower system in China. The system consists of heliostats field providing concentrated sunlight, a solar tower with a height of 33 meter, a pressured cavity-air-receiver transforming solar energy to thermal energy, a modified gas turbine adapting to solar power system, natural gas subsystem for solar-hybrid generation, cooling water subsystem for receiver and CPC, controlling subsystem for whole plant, et al. In this system, air acts as actuating medium and the system works in Brayton cycle. Testing results show that solar power tower system is feasible in China. To promote the development of solar powered gas turbine system and the pressured cavity-air-receiver technology in China, it is necessary to study the mechanical design for pressured Cavity-air-receiver. Mechanical design of pressured cavity-air-receiver is underway and some tentative principles for pressured cavity-air-receiver design, involving in power matching, thermal efficiency, material choosing, and equipment security and machining ability, are presented. At the same time, simplified method and process adapted to engineering application for the mechanical design of pressured cavity-air-receiver are discussed too. Furthermore, some design parameters and appearance of a test sample of pressured cavity-air-receiver designed in this way is shown. It is appealed that, in China, the research in this field should be intensified and independent knowledge patents for pivotal technological equipments such as receiver in solar power tower system should be formed. (orig.)

  11. Structural Elements in a Persistent Identifier Infrastructure and Resulting Benefits for the Earth Science Community

    Science.gov (United States)

    Weigel, T.; Toussaiant, F.; Stockhause, M.; Höck, H.; Kindermann, S.; Lautenschlager, M.; Ludwig, T.

    2012-12-01

    break if individual links become unavailable. Secondly, a single service cannot interpret links if downstream solutions differ in their implementation schemas. Emerging efforts driven by the European Persistent Identifier Consortium (EPIC) aim to establish a default mechanism for structural elements at the Handle level. We motivate to make applications, which take part in the data lifecycle, aware of data derivation provenance and let them provide additional elements to the provenance graph. Since they are also Handles, DataCite DOIs can act as a corner stone and provide an entry point to discover the provenance graph. References B. Lawrence, C. Jones, B. Matthews, S. Pepler, and S. Callaghan, "Citation and peer review of data: Moving towards formal data publication," Int. J. of Digital Curation, vol. 6, no. 2, 2011. L. Moreau, "The foundations for provenance on the web," Foundations and Trends® in Web Science, vol. 2, no. 2-3, pp. 99-241, 2010. F. Toussaint, T. Weigel, H. Thiemann, H. Höck, M. Stockhause: "Application Examples for Handle System Usage", submitted to AGU 2012 session IN009.

  12. Compressed Sensing-Based Direct Conversion Receiver

    DEFF Research Database (Denmark)

    Pierzchlewski, Jacek; Arildsen, Thomas; Larsen, Torben

    2012-01-01

    Due to the continuously increasing computational power of modern data receivers it is possible to move more and more processing from the analog to the digital domain. This paper presents a compressed sensing approach to relaxing the analog filtering requirements prior to the ADCs in a direct......-converted radio signals. As shown in an experiment presented in the article, when the proposed method is used, it is possible to relax the requirements for the quadrature down-converter filters. A random sampling device and an additional digital signal processing module is the price to pay for these relaxed...

  13. Radiation Doses Received by the Irish Population

    International Nuclear Information System (INIS)

    Colgan, P.A.; Organo, C.; Hone, C.; Fenton, D.

    2008-05-01

    Some chemical elements present in the environment since the Earth was formed are naturally radioactive and exposure to these sources of radiation cannot be avoided. There have also been additions to this natural inventory from artificial sources of radiation that did not exist before the 1940s. Other sources of radiation exposure include cosmic radiation from outer space and the use of radiation in medical diagnosis and treatment. There can be large variability in the dose received by invividual members of the population from any given source. Some sources of radiation expose every member of the population while, in other cases, only selected individuals may be exposed. For example, natural radioactivity is found in all soils and therefore everybody receives some radiation dose from this activity. On the other hand, in the case of medical exposures, only those who undergo a medical procedure using radiation will receive a radiation dose. The Radiological Protection Institute of Ireland (RPII) has undertaken a comprehensive review of the relevant data on radiation exposure in Ireland. Where no national data have been identified, the RPII has either undertaken its own research or has referred to the international literature to provide a best estimate of what the exposure in Ireland might be. This has allowed the relative contribution of each source to be quantified. This new evaluation is the most up-to-date assessment of radiation exposure and updates the assessment previously reported in 2004. The dose quoted for each source is the annual 'per caput' dose calculated on the basis of the most recently available data. This is an average value calculated by adding the doses received by each individual exposed to a given radiation source and dividing the total by the current population of 4.24 million. All figures have been rounded, consistent with the accuracy of the data. In line with accepted international practice, where exposure takes place both indoors and

  14. Student science enrichment training program

    Energy Technology Data Exchange (ETDEWEB)

    Sandhu, S.S.

    1994-08-01

    This is a report on the Student Science Enrichment Training Program, with special emphasis on chemical and computer science fields. The residential summer session was held at the campus of Claflin College, Orangeburg, SC, for six weeks during 1993 summer, to run concomitantly with the college`s summer school. Fifty participants selected for this program, included high school sophomores, juniors and seniors. The students came from rural South Carolina and adjoining states which, presently, have limited science and computer science facilities. The program focused on high ability minority students, with high potential for science engineering and mathematical careers. The major objective was to increase the pool of well qualified college entering minority students who would elect to go into science, engineering and mathematical careers. The Division of Natural Sciences and Mathematics and engineering at Claflin College received major benefits from this program as it helped them to expand the Departments of Chemistry, Engineering, Mathematics and Computer Science as a result of additional enrollment. It also established an expanded pool of well qualified minority science and mathematics graduates, which were recruited by the federal agencies and private corporations, visiting Claflin College Campus. Department of Energy`s relationship with Claflin College increased the public awareness of energy related job opportunities in the public and private sectors.

  15. Origins Space Telescope: HEterodyne Receiver for OST (HERO)

    Science.gov (United States)

    Bergin, Edwin; Wiedner, Martina; Laurens, Andre; Gerin, Maryvonne; HERO team, Origins Space Telescope Science and Technology Definition Team

    2018-01-01

    The Origins Space Telescope (OST) is a mission concept for the Far-Infrared Surveyor, one of the four science and technology definition studies selected by NASA HQ for the 2020 Astronomy and Astrophysics Decadal survey. The OST study will encompass two mission concepts (poster by A. Cooray). Concept 1 is an extremely versatile observatory with 5 science instruments, of which the HEterodyne Receivers for OST (HERO) is one.HERO’s main targets are high spectral resolution observations (Dl/l up to 107 or Dv = 0.03km/s) of water to follow its trail from cores to YSOs as well as H2O and HDO observations on comets to explore the origins of water. HERO will probe all neutral ISM phases using cooling lines ([CII], [OI]) and hydrides as probes of CO-dark H2 (CH, HF). HERO will reveal how molecular clouds and filaments form in the local ISM up to nearby galaxies. HERO will enable detailed understanding of feedback mechanisms : shocks, cosmic rays, UV induced feedback and will provide a map of the cosmic ray ionization rate in the Galaxy and nearby galaxies using molecular ions (ArH+, OH+, H3O+).In order to achieve these observational goals, HERO will cover an extremely wide frequency range from 468 to 2700 GHz (641 to 111microns) and a window around the OI line at 4563 to 4752GHz (66 to 63 microns). It will consist of very large focal plane arrays of 128 pixels between 900 - 2700 GHz and at 4.7 THz, and 32 pixels for the 468 to 900 GHz range. The instrument is exploiting Herschel/HIFI heritage, but will go well beyond HIFIs capacities. HERO’s large arrays require low dissipation and low power components. The HERO concept makes use of the latest cryogenic SiGe amplifier technology, as well as CMOS technology for the backends with 2 orders of magnitude lower power. Advances in Local Oscillator technology have also been taken into account and ambitious, but realistic assumptions have been made for future amplifier multiplier chains going up to 4.7 THz.Origins will enable

  16. A Review of Forensic Science Management Literature.

    Science.gov (United States)

    Houck, M M; McAndrew, W P; Porter, M; Davies, B

    2015-01-01

    The science in forensic science has received increased scrutiny in recent years, but interest in how forensic science is managed is a relatively new line of research. This paper summarizes the literature in forensic science management generally from 2009 to 2013, with some recent additions, to provide an overview of the growth of topics, results, and improvements in the management of forensic services in the public and private sectors. This review covers only the last three years or so and a version of this paper was originally produced for the 2013 Interpol Forensic Science Managers Symposium and is available at interpol.int. Copyright © 2015 Central Police University.

  17. Superconductor Digital-RF Receiver Systems

    Science.gov (United States)

    Mukhanov, Oleg A.; Kirichenko, Dmitri; Vernik, Igor V.; Filippov, Timur V.; Kirichenko, Alexander; Webber, Robert; Dotsenko, Vladimir; Talalaevskii, Andrei; Tang, Jia Cao; Sahu, Anubhav; Shevchenko, Pavel; Miller, Robert; Kaplan, Steven B.; Sarwana, Saad; Gupta, Deepnarayan

    Digital superconductor electronics has been experiencing rapid maturation with the emergence of smaller-scale, lower-cost communications applications which became the major technology drivers. These applications are primarily in the area of wireless communications, radar, and surveillance as well as in imaging and sensor systems. In these areas, the fundamental advantages of superconductivity translate into system benefits through novel Digital-RF architectures with direct digitization of wide band, high frequency radio frequency (RF) signals. At the same time the availability of relatively small 4K cryocoolers has lowered the foremost market barrier for cryogenically-cooled digital electronic systems. Recently, we have achieved a major breakthrough in the development, demonstration, and successful delivery of the cryocooled superconductor digital-RF receivers directly digitizing signals in a broad range from kilohertz to gigahertz. These essentially hybrid-technology systems combine a variety of superconductor and semiconductor technologies packaged with two-stage commercial cryocoolers: cryogenic Nb mixed-signal and digital circuits based on Rapid Single Flux Quantum (RSFQ) technology, room-temperature amplifiers, FPGA processing and control circuitry. The demonstrated cryocooled digital-RF systems are the world's first and fastest directly digitizing receivers operating with live satellite signals in X-band and performing signal acquisition in HF to L-band at ˜30GHz clock frequencies.

  18. University Rankings and Social Science

    Science.gov (United States)

    Marginson, Simon

    2014-01-01

    University rankings widely affect the behaviours of prospective students and their families, university executive leaders, academic faculty, governments and investors in higher education. Yet the social science foundations of global rankings receive little scrutiny. Rankings that simply recycle reputation without any necessary connection to real…

  19. Zimbabwe Journal of Technological Sciences

    African Journals Online (AJOL)

    The Zimbabwe Journal of Technological Sciences receives and publishes articles that address issues in Technology as a developmental field in Africa. The aim is to develop new technological knowledge that is geared to enhance the lives of the African people through solving pertinent problems that affect them.

  20. The sciences of science communication.

    Science.gov (United States)

    Fischhoff, Baruch

    2013-08-20

    The May 2012 Sackler Colloquium on "The Science of Science Communication" brought together scientists with research to communicate and scientists whose research could facilitate that communication. The latter include decision scientists who can identify the scientific results that an audience needs to know, from among all of the scientific results that it would be nice to know; behavioral scientists who can design ways to convey those results and then evaluate the success of those attempts; and social scientists who can create the channels needed for trustworthy communications. This overview offers an introduction to these communication sciences and their roles in science-based communication programs.

  1. Marine Science

    African Journals Online (AJOL)

    Science. The journal has a new and more modern layout, published online only, and the editorial. Board was increased to include more disciplines pertaining to marine sciences. While important chal- lenges still lie ahead, we are steadily advancing our standard to increase visibility and dissemination throughout the global ...

  2. Marine Science

    African Journals Online (AJOL)

    Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue for the wide dissem- ination of high ... or by any means without permission in writing from the copyright holder. ..... Journal of Chemical Engineering Research and Design 82 ... Indian Ocean Marine Science Association Technical.

  3. Life sciences

    Energy Technology Data Exchange (ETDEWEB)

    Day, L. (ed.)

    1991-04-01

    This document is the 1989--1990 Annual Report for the Life Sciences Divisions of the University of California/Lawrence Berkeley Laboratory. Specific progress reports are included for the Cell and Molecular Biology Division, the Research Medicine and Radiation Biophysics Division (including the Advanced Light Source Life Sciences Center), and the Chemical Biodynamics Division. 450 refs., 46 figs. (MHB)

  4. Big Science

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1986-05-15

    Astronomy, like particle physics, has become Big Science where the demands of front line research can outstrip the science budgets of whole nations. Thus came into being the European Southern Observatory (ESO), founded in 1962 to provide European scientists with a major modern observatory to study the southern sky under optimal conditions.

  5. Life sciences

    International Nuclear Information System (INIS)

    Day, L.

    1991-04-01

    This document is the 1989--1990 Annual Report for the Life Sciences Divisions of the University of California/Lawrence Berkeley Laboratory. Specific progress reports are included for the Cell and Molecular Biology Division, the Research Medicine and Radiation Biophysics Division (including the Advanced Light Source Life Sciences Center), and the Chemical Biodynamics Division. 450 refs., 46 figs

  6. Marine Science

    African Journals Online (AJOL)

    Chief Editor José Paula | Faculty of Sciences of University of Lisbon, Portugal. Copy Editor Timothy Andrew. Published biannually. Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue for the wide dissem- ination of high quality research generated in the Western Indian Ocean (WIO) ...

  7. Egyptian Journal of Medical Laboratory Sciences

    African Journals Online (AJOL)

    The main objective of this journal is to cover all aspects of medical laboratory science. Contributions are received from staff members of academic, basic and laboratory science departments of the different medical schools and research centres all over Egypt and it fulfils a real need amongst Egyptian doctors working in the ...

  8. Leading Change in the Primary Science Curriculum

    Science.gov (United States)

    Waller, Nicky; Baker, Chris

    2014-01-01

    Nicky Waller and Chris Baker believe that change can be a good thing and explain how their training has helped others to adjust to the new science curriculum. In September 2013, teachers across England received the definitive version of the new primary curriculum "Leading Change in the Primary Science Curriculum." This course aimed to…

  9. Developing Interpretive Power in Science Teaching

    Science.gov (United States)

    Rosebery, Ann S.; Warren, Beth; Tucker-Raymond, Eli

    2016-01-01

    Early career teachers rarely receive sustained support for addressing issues of diversity and equity in their science teaching. This paper reports on design research to create a 30 hour professional development seminar focused on cultivating the interpretive power of early career teachers who teach science to students from historically…

  10. Publish and Who Should Perish: You or Science?

    Directory of Open Access Journals (Sweden)

    Ádám Kun

    2018-04-01

    Full Text Available Something is wrong with science as there is an increasing amount of unreliable, manipulated and outright faked results appearing in the literature. Here I argue that this is a direct consequence of the pay-structure and the assessment system employed in academia and it could be remedied by changing hiring, advancement, and funding criteria. Scientists are paid below average relative to their level of education, unless they are at the top or can secure grants that allow for higher salaries. Positions and grants are mostly awarded based on bibliometric numbers. Consequently, there is a strong competition to accumulate numbers of papers, impact factors, and citations. Those who can increase their value efficiently will be rewarded and the accumulation of higher values will become easier (the Matthew effect. Higher bibliometric numbers can be obtained by unethical or questionable practices, which might tempt some people. If assessments did not employ bibliometric numbers, then these practices would not have a benefit, and would fade out. Throughout the text, data from Hungary, which are similar to data from elsewhere, supplement the argument.

  11. The science behind the smile. Interview by Gardiner Morse.

    Science.gov (United States)

    Gilbert, Daniel

    2012-01-01

    Only recently have we been able to apply science to one of the world's oldest questions: "What is the nature of happiness?" In this edited interview, the author of the 2006 best seller Stumbling on Happiness surveys the field. Gilbert explores the sudden emergence of happiness as a discipline, reviews the major findings (including the mistakes we all make in predicting how happy or miserable we'll be), and examines the role of happiness in productivity on the job. He describes what makes us truly happy-it's not a promotion or a new house-and sketches out a "happiness diet" that emphasizes small, routine efforts. Looking forward, Gilbert discusses the breakthrough work of his colleague Matthew Killingsworth, whose iPhoneenabled real-time surveys of people's moods are providing an ultra-high-resolution picture of how our emotional states shift from minute to minute. A sidebar by Killingsworth offers a preliminary look at his findings and their implications for our personal and workplace lives.

  12. Eosinophils increase in animals that received biotherapic

    Directory of Open Access Journals (Sweden)

    Pedro Gilberto Silva Morais

    2012-12-01

    Full Text Available Dairy industry is an important Brazilian economic activity participating of income generation. European breeds cattle aren’t adapted to parasites found in the tropics, like the Rhipicephalus microplus tick. Parasites can acquire resistance to allopathic products, but not to homeopathic products. We evaluate the efficacy of an antiparasiticide biotherapic against the R. microplus tick. The biotherapic was prepared according to the homeopathic pharmacopoeia recommendations from vegetable (Abrotanum and animal products (Rhipicephalus microplus, Amblyomma cajenennense, Haematobia irritans, Musca domestica, Dermatobia hominis, all diluted and vigorous shaken (dynamized in water or alcohol at a ratio of 1:99, in the 12th Centesimal Hahnemann (CH12, with limestone as the carrier. This homeophatic product found in veterinary pharmacies of Ituiutaba’s region, Minas Gerais State, is registered at Ministério da Agricultura, Pecuária e Abastecimento (MAPA. Natural tick infestation was accessed in thirty Girolando (Gir x Holstein cows with 7 to 13 year-old, by monthly counting of tick female bigger than 6 mm, from October/2009 to July/2011. Cows were divided in three groups of 10 similar animals. The treated group (T1 received roughage, concentrate and biotherapic. The placebo group (T2 received roughage, concentrate and limestone and the control group (T3 received only roughage and concentrate. T1 and T2 groups were managed together and remained in the same paddock. T3 group was separed from T1 and T2 by a wire fence. From October 2009 to September 2010 blood cell counts and serum biochemical tests were performed monthly only in T1 and T2, but visual clinical observations were made in all animals. Any group was treated with acaricide when the count’s average reached 50 or more ticks. It was necessary 7 baths with acaricide in T1 and T2, while in T3 group (control group it was necessary 19 acaricide baths to control the cattle tick. We verified

  13. Radioactive contamination in monitors received for calibration

    International Nuclear Information System (INIS)

    Dias, Paulo S.; Santos, Gilvan C. dos; Brunelo, Maria Antonieta G.; Paula, Tiago C. de; Pires, Marina A.; Borges, Jose C.

    2013-01-01

    The Calibration Laboratory - LABCAL, from the Research Center for Metrology and Testing - METROBRAS, MRA Comercio de Instrumentos Eletronicos Ltda., began activities in October 2008 and, in August 2009, decided to establish a procedure for monitoring tests, external and internal, of all packages received from customers, containing instruments for calibration. The aim was to investigate possible contamination radioactive on these instruments. On July 2011, this procedure was extended to packagings of personal thermoluminescent dosemeters - TLD, received by the newly created Laboratory Laboratorio de Dosimetria Pessoal - LDP . In the monitoring procedure were used monitors with external probe, type pancake, MRA brand, models GP - 500 and MIR 7028. During the 37 months in which this investigation was conducted, were detected 42 cases of radioactive contamination, with the following characteristics: 1) just one case was personal dosimeter, TLD type; 2) just one case was not from a packing from nuclear medicine service - was from a mining company; 3) contamination occurred on packs and instruments, located and/or widespread; 4) contamination values ranged from slightly above the level of background radiation to about a thousand fold. Although METROBRAS has facilities for decontamination, in most cases, especially those of higher contamination, the procedure followed was to store the contaminated material in a room used for storage of radioactive sources. Periodically, each package and/or instrument was monitored, being released when the radiation level matched the background radiation. Every contamination detected, the client and/or owner of the instrument was informed. The Brazilian National Energy Commission - CNEN, was informed, during your public consultation for reviewing the standard for nuclear medicine services, held in mid-2012, having received from METROBRAS the statistical data available at the time. The high frequency of contamination detected and the high

  14. ALICE physicists receive 2014 Lise Meitner Prize

    CERN Multimedia

    Katarina Anthony

    2014-01-01

    On Wednesday, 3 September, four ALICE physicists were presented with the European Physical Society's 2014 Lise Meitner Prize for their outstanding contributions to nuclear physics (see here).   ALICE collaboration members Johanna Stachel (Heidelberg University, Germany), Peter Braun-Munzinger (GSI, Germany), Paolo Giubellino (INFN Turin, Italy, and CERN) and Jürgen Schukraft (CERN) were presented with their awards at a private ceremony held in the Globe of Science and Innovation. In addition to members of the ALICE collaboration, the ceremony was attended by members of the CERN Management including the Director-General, Rolf Heuer, as well as the EPS Nuclear Physics Board Chair, Douglas MacGregor, and the EPS Lise Meitner Prize Committee Chair, Victor Zamfir. For more information, please see "EPS honours CERN's heavy-ion researchers".  From left to right: Douglas MacGregor (EPS); Prize recipients Jürgen Schukraft,&a...

  15. CERN receives prestigious Milestone recognition from IEEE

    CERN Multimedia

    2005-01-01

    The Nobel prize winner Georges Charpak and W. Cleon Anderson, IEEE President, unveil the Milestone bronze plaques. At a ceremony on 26 September at the Globe of Science and Innovation, Mr W. Cleon Anderson, President of the Institute of Electrical and Electronics Engineers (IEEE) formally dedicated Milestone plaques recognising the invention of electronic particle detectors at CERN. The plaque were unveiled by Mr Anderson and Georges Charpak, the Nobel-prize winning inventor of wire chamber technology at CERN in 1968. The IEEE is the world's largest professional association dedicated to the advancement of technology with 365,000 individual members in over 150 countries. Established in 1983, there are currently over 60 Milestones around the world. They honour momentous achievements in the history of electrical and electronics engineering, such as the landing of the first transatlantic cable, code breaking at Bletchley Park during World War II, and the development of the Japanese Bullet train, the Tokaido Shin...

  16. Science teaching in science education

    Science.gov (United States)

    Callahan, Brendan E.; Dopico, Eduardo

    2016-06-01

    Reading the interesting article Discerning selective traditions in science education by Per Sund , which is published in this issue of CSSE, allows us to open the discussion on procedures for teaching science today. Clearly there is overlap between the teaching of science and other areas of knowledge. However, we must constantly develop new methods to teach and differentiate between science education and teaching science in response to the changing needs of our students, and we must analyze what role teachers and teacher educators play in both. We must continually examine the methods and concepts involved in developing pedagogical content knowledge in science teachers. Otherwise, the possibility that these routines, based on subjective traditions, prevent emerging processes of educational innovation. Modern science is an enormous field of knowledge in its own right, which is made more expansive when examined within the context of its place in society. We propose the need to design educative interactions around situations that involve science and society. Science education must provide students with all four dimensions of the cognitive process: factual knowledge, conceptual knowledge, procedural knowledge, and metacognitive knowledge. We can observe in classrooms at all levels of education that students understand the concepts better when they have the opportunity to apply the scientific knowledge in a personally relevant way. When students find value in practical exercises and they are provided opportunities to reinterpret their experiences, greater learning gains are achieved. In this sense, a key aspect of educational innovation is the change in teaching methodology. We need new tools to respond to new problems. A shift in teacher education is needed to realize the rewards of situating science questions in a societal context and opening classroom doors to active methodologies in science education to promote meaningful learning through meaningful teaching.

  17. Signal Processing for Improved Wireless Receiver Performance

    DEFF Research Database (Denmark)

    Christensen, Lars P.B.

    2007-01-01

    This thesis is concerned with signal processing for improving the performance of wireless communication receivers for well-established cellular networks such as the GSM/EDGE and WCDMA/HSPA systems. The goal of doing so, is to improve the end-user experience and/or provide a higher system capacity...... by allowing an increased reuse of network resources. To achieve this goal, one must first understand the nature of the problem and an introduction is therefore provided. In addition, the concept of graph-based models and approximations for wireless communications is introduced along with various Belief...... Propagation (BP) methods for detecting the transmitted information, including the Turbo principle. Having established a framework for the research, various approximate detection schemes are discussed. First, the general form of linear detection is presented and it is argued that this may be preferable...

  18. The BINP receives its Golden Hadron award

    CERN Multimedia

    2002-01-01

    On Thursday, 14 September, the LHC Project Leader, Lyn Evans, handed over a Golden Hadron award to Alexander Skrinsky of Russia's Budker Institute of Nuclear Physics (BINP). The prize is awarded in recognition of exceptional performances by suppliers and this year prizes were awarded to two firms, Cockerill-Sambre (Belgium) and Wah-Chang (United States), and to the Budker Institute, which was unable to receive the award at the same time as the two other recipients (see Bulletin No 34/2002, of 19 August 2002). The Russian institute has been rewarded for the particularly high-quality production of 360 dipole magnets and 185 quadrupole magnets for the LHC proton beam transfer lines.

  19. Humboldt SK pilot biodigester receives funding

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2005-09-30

    The Canada-Saskatchewan Western Economic Partnership Agreement (WEPA) will provide funding for Canada's first pilot-scale biodigester to be built in Humboldt, Saskatchewan. The $208,138 pilot facility will use household garbage as well as agricultural waste such as manure and livestock operations, abattoirs and food processing to create heat or power and fertilizer. Support for this bio-energy facility, which could also reduce greenhouse gases, will come from the Prairie Agricultural Machinery Institute which has received $186,138 from Canada and Saskatchewan in the form of cost-shared federal-provincial funding. The pilot plant will test different combinations of waste material feedstocks and the characteristics of the resulting gas end products. The pilot facility will also provide design information for full-scale biodigester manufacturers in Canada. It is expected that 25 full-scale biodigesters will be constructed in Canada in the near future.

  20. Receiver based PAPR reduction in OFDMA

    KAUST Repository

    Ali, Anum Z.; Al-Zahrani, Ali Y.; Al-Naffouri, Tareq Y.; Naguib, Ayman F.

    2014-01-01

    High peak-to-average power ratio is one of the major drawbacks of orthogonal frequency division multiplexing (OFDM). Clipping is the simplest peak reduction scheme, however, it requires clipping mitigation at the receiver. Recently compressed sensing has been used for clipping mitigation (by exploiting the sparse nature of clipping signal). However, clipping estimation in multi-user scenario (i.e., OFDMA) is not straightforward as clipping distortions overlap in frequency domain and one cannot distinguish between distortions from different users. In this work, a collaborative clipping removal strategy is proposed based on joint estimation of the clipping distortions from all users. Further, an effective data aided channel estimation strategy for clipped OFDM is also outlined. Simulation results are presented to justify the effectiveness of the proposed schemes. © 2014 IEEE.

  1. Fast digitization and digital receiver technology

    International Nuclear Information System (INIS)

    Kimball, Ralph C.

    2002-01-01

    The potentially lucrative wireless market has led to technological advances in mixed signal devices such as high speed, high resolution A/D and D/A converters. This same market has also driven the development of high performance multi-channel digital receiver and digital transmitter ICs. Similarly, advances in semiconductor processes, coupled with the need for reduced time-to-market, has led to the development of large, enhanced performance, in-circuit programmable logic devices. A review of the key characteristics of these mixed-signal, signal processing and programmable logic devices is presented. The application of these devices and technologies to the instrumentation of Accelerators and Storage Rings is discussed and presented by way of examples. Issues relating to the requirements associated with real-time processing, I/O throughput, reconfigurability, reliability, maintainability and packaging requirements are also addressed

  2. Receiver operator characteristic (ROC) analysis without truth

    International Nuclear Information System (INIS)

    Henkelman, R.M.; Kay, I.; Bronskill, M.J.

    1990-01-01

    Receiver operator characteristic (ROC) analysis, the preferred method of evaluating diagnostic imaging tests, requires an independent assessment of the true state of disease, which can be difficult to obtain and is often of questionable accuracy. A new method of analysis is described which does not require independent truth data and which can be used when several accurate tests are being compared. This method uses correlative information to estimate the underlying model of multivariate normal distributions of disease-positive and disease-negative patients. The method is shown to give results equivalent to conventional ROC analysis in a comparison of computed tomography, radionuclide scintigraphy, and magnetic resonance imaging for liver metastasis. When independent truth is available, the method can be extended to incorporate truth data or to evaluate the consistency of the truth data with the imaging data

  3. MRI in children receiving total parenteral nutrition

    International Nuclear Information System (INIS)

    Quaghebeur, G.; Taylor, W.J.; Kingsley, D.P.E.; Fell, J.M.E.; Reynolds, A.P.; Milla, P.J.

    1996-01-01

    Cranial MRI was obtained in 13 of a group of 57 children receiving long-term parenteral nutrition, who were being investigated for hypermanganasaemia. Increased signal intensity on T1-weighted images has been reported in adult patients on long-term parenteral nutrition and with encephalopathy following chronic manganese exposure in arc welding. It has been postulated that these changes are due to deposition of the paramagnetic trace element manganese. In excess manganese is hepato- and neurotoxic and we present the correlation of whole blood manganese levels with imaging findings. The age range of our patients was 6 months to 10 years, and the duration of therapy 3 months to 10 years. In 7 children we found characteristic increased signal intensity on T1-weighted images, with no abnormality on T2-weighted images. All patients had elevated whole blood manganese levels, suggesting that the basis for this abnormality is indeed deposition of manganese within the tissues. (orig.). With 3 figs

  4. New Packing Structure of Concentration Solar Receiver

    International Nuclear Information System (INIS)

    Tsai, Shang-Yu; Lee, Yueh-Mu; Shih, Zun-Hao; Hong, Hwen-Fen; Shin, Hwa-Yuh; Kuo, Cherng-Tsong

    2010-01-01

    This paper presents a solution to the temperature issue in High Concentration Photovoltaic (HCPV) module device by using different thermal conductive material and packing structure. In general, the open-circuited voltage of a device reduces with the increase of temperature and therefore degrades its efficiency. The thermal conductive material we use in this paper, silicon, has a high thermal conductive coefficient (149 W/m·K) and steady semiconductor properties which are suitable for the application of solar receiver in HCPV module. Solar cell was soldered on a metal-plated Si substrate with a thicker SiO 2 film which acts as an insulating layer. Then it was mounted on an Al-based plate to obtain a better heat dissipating result.

  5. Receiver based PAPR reduction in OFDMA

    KAUST Repository

    Ali, Anum Z.

    2014-05-01

    High peak-to-average power ratio is one of the major drawbacks of orthogonal frequency division multiplexing (OFDM). Clipping is the simplest peak reduction scheme, however, it requires clipping mitigation at the receiver. Recently compressed sensing has been used for clipping mitigation (by exploiting the sparse nature of clipping signal). However, clipping estimation in multi-user scenario (i.e., OFDMA) is not straightforward as clipping distortions overlap in frequency domain and one cannot distinguish between distortions from different users. In this work, a collaborative clipping removal strategy is proposed based on joint estimation of the clipping distortions from all users. Further, an effective data aided channel estimation strategy for clipped OFDM is also outlined. Simulation results are presented to justify the effectiveness of the proposed schemes. © 2014 IEEE.

  6. IAEA receives Iraq's nuclear-related declaration

    International Nuclear Information System (INIS)

    2002-01-01

    Full text: The Director General of the International Atomic Energy Agency, Mohamed ElBaradei, announced that the IAEA received this evening, Sunday, 8 December 2002, at its Headquarters in Vienna, an approximately 2400 page declaration on Iraq's nuclear programme. The declaration consists of about 2100 pages in English and 300 pages in Arabic. The declaration was submitted by the Government of Iraq in response to paragraph 3 of Security Council resolution 1441 (8 November 2002), which requires Iraq to provide to UNMOVIC, the IAEA and to the Security Council, not later than 30 days of the date of that resolution, with 'currently accurate, full, and complete declaration of all aspects of its programmes to develop chemical, biological, and nuclear weapons, ballistic missiles, and other delivery systems... as well as all other chemical, biological, and nuclear programmes, including any which it claims are for purposes not related to weapon production or material'. 'The IAEA will immediately begin to assess this important new document,' said Mr. ElBaradei, 'including the painstaking and systematic cross-checking of the information provided by Iraq against information which the IAEA already has, information that it expects to receive from other Member States, as contemplated in resolution 1441, and results of past and present Agency verification activities.' Complete assessment of the declaration will be time consuming, particularly in light of the need to translate the 300 pages of Arabic text into English. However, the IAEA expects to be able to provide a preliminary analysis of the document to the Security Council within the next ten days, with a fuller assessment to be provided when it reports to the Council at the end of January. (IAEA)

  7. Transmit-receive eddy current probes

    International Nuclear Information System (INIS)

    Obrutsky, L.S.; Sullivan, S.P.; Cecco, V.S.

    1997-01-01

    In the last two decades, due to increased inspection demands, eddy current instrumentation has advanced from single-frequency, single-output instruments to multifrequency, computer-aided systems. This has significantly increased the scope of eddy current testing, but, unfortunately, it has also increased the cost and complexity of inspections. In addition, this approach has not always improved defect detectability or signal-to-noise. Most eddy current testing applications are still performed with impedance probes, which have well known limitations. However, recent research at AECL has led to improved eddy current inspections through the design and development of transmit-receive (T/R) probes. T/R eddy current probes, with laterally displaced transmit and receive coils, present a number of advantages over impedance probes. They have improved signal-to-noise ratio in the presence of variable lift-off compared to impedance probes. They have strong directional properties, permitting probe optimization for circumferential or axial crack detection, and possess good phase discrimination to surface defects. They can significantly increase the scope of eddy current testing permitting reliable detection and sizing of cracks in heat exchanger tubing as well as in welded areas of both ferritic and non-ferromagnetic components. This presentation will describe the operating principles of T/R probes with the help of computer-derived normalized voltage diagrams. We will discuss their directional properties and analyze the advantages of using single and multiple T/R probes over impedance probes for specific inspection cases. Current applications to surface and tube testing and some typical inspection results will be described. (author)

  8. A study of science leadership and science standards in exemplary standards-based science programs

    Science.gov (United States)

    Carpenter, Wendy Renae

    The purpose for conducting this qualitative study was to explore best practices of exemplary standards-based science programs and instructional leadership practices in a charter high school and in a traditional high school. The focus of this study included how twelve participants aligned practices to National Science Education Standards to describe their science programs and science instructional practices. This study used a multi-site case study qualitative design. Data were obtained through a review of literature, interviews, observations, review of educational documents, and researcher's notes collected in a field log. The methodology used was a multi-site case study because of the potential, through cross analysis, for providing greater explanation of the findings in the study (Merriam, 1988). This study discovered six characteristics about the two high school's science programs that enhance the literature found in the National Science Education Standards; (a) Culture of expectations for learning-In exemplary science programs teachers are familiar with a wide range of curricula. They have the ability to examine critically and select activities to use with their students to promote the understanding of science; (b) Culture of varied experiences-In exemplary science programs students are provided different paths to learning, which help students, take in information and make sense of concepts and skills that are set forth by the standards; (c) Culture of continuous feedback-In exemplary science programs teachers and students work together to engage students in ongoing assessments of their work and that of others as prescribed in the standards; (d) Culture of Observations-In exemplary science programs students, teachers, and principals reflect on classroom instructional practices; teachers receive ongoing evaluations about their teaching and apply feedback towards improving practices as outlined in the standards; (e) Culture of continuous learning-In exemplary

  9. Revolutionary Science.

    Science.gov (United States)

    Casadevall, Arturo; Fang, Ferric C

    2016-03-01

    On rare occasions in the history of science, remarkable discoveries transform human society and forever alter mankind's view of the world. Examples of such discoveries include the heliocentric theory, Newtonian physics, the germ theory of disease, quantum theory, plate tectonics and the discovery that DNA carries genetic information. The science philosopher Thomas Kuhn famously described science as long periods of normality punctuated by times of crisis, when anomalous observations culminate in revolutionary changes that replace one paradigm with another. This essay examines several transformative discoveries in the light of Kuhn's formulation. We find that each scientific revolution is unique, with disparate origins that may include puzzle solving, serendipity, inspiration, or a convergence of disparate observations. The causes of revolutionary science are varied and lack an obvious common structure. Moreover, it can be difficult to draw a clear distinction between so-called normal and revolutionary science. Revolutionary discoveries often emerge from basic science and are critically dependent on nonrevolutionary research. Revolutionary discoveries may be conceptual or technological in nature, lead to the creation of new fields, and have a lasting impact on many fields in addition to the field from which they emerge. In contrast to political revolutions, scientific revolutions do not necessarily require the destruction of the previous order. For humanity to continue to benefit from revolutionary discoveries, a broad palette of scientific inquiry with a particular emphasis on basic science should be supported. Copyright © 2016 Casadevall and Fang.

  10. Science packages

    Science.gov (United States)

    1997-01-01

    Primary science teachers in Scotland have a new updating method at their disposal with the launch of a package of CDi (Compact Discs Interactive) materials developed by the BBC and the Scottish Office. These were a response to the claim that many primary teachers felt they had been inadequately trained in science and lacked the confidence to teach it properly. Consequently they felt the need for more in-service training to equip them with the personal understanding required. The pack contains five disks and a printed user's guide divided up as follows: disk 1 Investigations; disk 2 Developing understanding; disks 3,4,5 Primary Science staff development videos. It was produced by the Scottish Interactive Technology Centre (Moray House Institute) and is available from BBC Education at £149.99 including VAT. Free Internet distribution of science education materials has also begun as part of the Global Schoolhouse (GSH) scheme. The US National Science Teachers' Association (NSTA) and Microsoft Corporation are making available field-tested comprehensive curriculum material including 'Micro-units' on more than 80 topics in biology, chemistry, earth and space science and physics. The latter are the work of the Scope, Sequence and Coordination of High School Science project, which can be found at http://www.gsh.org/NSTA_SSandC/. More information on NSTA can be obtained from its Web site at http://www.nsta.org.

  11. Full-wave receiver architecture for the homodyne motion sensor

    Science.gov (United States)

    Haugen, Peter C; Dallum, Gregory E; Welsh, Patrick A; Romero, Carlos E

    2013-11-19

    A homodyne motion sensor or detector based on ultra-wideband radar utilizes the entire received waveform through implementation of a voltage boosting receiver. The receiver includes a receiver input and a receiver output. A first diode is connected to the receiver output. A first charge storage capacitor is connected from between the first diode and the receiver output to ground. A second charge storage capacitor is connected between the receiver input and the first diode. A second diode is connected from between the second charge storage capacitor and the first diode to ground. The dual diode receiver performs voltage boosting of a RF signal received at the receiver input, thereby enhancing receiver sensitivity.

  12. Full-wave receiver architecture for the homodyne motion sensor

    Energy Technology Data Exchange (ETDEWEB)

    Haugen, Peter C.; Dallum, Gregory E.; Welsh, Patrick A.; Romero, Carlos E.

    2015-09-29

    A homodyne motion sensor or detector based on ultra-wideband radar utilizes the entire received waveform through implementation of a voltage boosting receiver. The receiver includes a receiver input and a receiver output. A first diode is connected to the receiver output. A first charge storage capacitor is connected from between the first diode and the receiver output to ground. A second charge storage capacitor is connected between the receiver input and the first diode. A second diode is connected from between the second charge storage capacitor and the first diode to ground. The dual diode receiver performs voltage boosting of a RF signal received at the receiver input, thereby enhancing receiver sensitivity.

  13. Big science transformed science, politics and organization in Europe and the United States

    CERN Document Server

    Hallonsten, Olof

    2016-01-01

    This book analyses the emergence of a transformed Big Science in Europe and the United States, using both historical and sociological perspectives. It shows how technology-intensive natural sciences grew to a prominent position in Western societies during the post-World War II era, and how their development cohered with both technological and social developments. At the helm of post-war science are large-scale projects, primarily in physics, which receive substantial funds from the public purse. Big Science Transformed shows how these projects, popularly called 'Big Science', have become symbols of progress. It analyses changes to the political and sociological frameworks surrounding publicly-funding science, and their impact on a number of new accelerator and reactor-based facilities that have come to prominence in materials science and the life sciences. Interdisciplinary in scope, this book will be of great interest to historians, sociologists and philosophers of science.

  14. The XCAT Science Portal

    Directory of Open Access Journals (Sweden)

    Sriram Krishnan

    2002-01-01

    Full Text Available This paper describes the design and prototype implementation of the XCAT Grid Science Portal. The portal lets grid application programmers script complex distributed computations and package these applications with simple interfaces for others to use. Each application is packaged as a notebook which consists of web pages and editable parameterized scripts. The portal is a workstation-based specialized personal web server, capable of executing the application scripts and launching remote grid applications for the user. The portal server can receive event streams published by the application and grid resource information published by Network Weather Service (NWS [35] or Autopilot [16] sensors. Notebooks can be published and stored in web based archives for others to retrieve and modify. The XCAT Grid Science Portal has been tested with various applications, including the distributed simulation of chemical processes in semiconductor manufacturing and collaboratory support for X-ray crystallographers.

  15. Phase Noise Tolerant QPSK Receiver Using Phase Sensitive Wavelength Conversion

    DEFF Research Database (Denmark)

    Da Ros, Francesco; Xu, Jing; Lei, Lei

    2013-01-01

    A novel QPSK receiver based on a phase noise reduction pre-stage exploiting PSA in a HNLF and balanced detection is presented. Receiver sensitivity improvement over a conventional balanced receiver is demonstrated.......A novel QPSK receiver based on a phase noise reduction pre-stage exploiting PSA in a HNLF and balanced detection is presented. Receiver sensitivity improvement over a conventional balanced receiver is demonstrated....

  16. Remark on receiving encouraging prize; Shoreisho jusho shokan

    Energy Technology Data Exchange (ETDEWEB)

    Mizutani, Tomichika [Meji University, Tokyo (Japan)

    1999-07-31

    The 1998 fiscal year Japan Solar Energy Soc. encouraging prize is received this time, and it is really sure of thank you and this winning prize for future research activity with large encouragement, while research activity in the university becomes in the good commemoration. This study also put environmental problem in visual field oil crisis energy resource worldwide new, and it was noticed in the wave energy which was one of the natural energy, it was started. That the wave energy was noticed, when the research of various natural energy was advanced, Over 10 years, it is the idea which was produced by the process in which the mechanics laboratory studies the vibration problem, and it is regarded as connecting with present winning prize as a summing-up of research result kept since the front. In the keyword of 'new{exclamation_point}' it began to leave Mr.Taichi Matsuoka and cooperation of the science graduate student as a partner of the graduation thesis the research the present it was a start from the nothing as a thing of this type. It is negative to advance this study in which the failure was always given here, when the new work began, of Mr.Matsuoka of the passion for the research. Away from the research of the wave power generation, solar light and wind power generation are noticed a little, and I aim at the hybridization of the wave power generation, and the research is advanced. Therefore, the vibration-proof stage for installing sun and wind energy conversion system on the wave-power device at present has been designed. At the end, the gratitude is shown to the everybody who received the enthusiastic guidance for this study. (translated by NEDO)

  17. The stability of a terahertz receiver based on a superconducting integrated receiver

    International Nuclear Information System (INIS)

    Ozhegov, R V; Gorshkov, K N; Gol'tsman, G N; Kinev, N V; Koshelets, V P

    2011-01-01

    We present the results of stability testing of a terahertz radiometer based on a superconducting receiver with a SIS tunnel junction as the mixer and a flux-flow oscillator as the local oscillator. In the continuum mode, the receiver with a noise temperature of 95 K at 510 GHz measured over the intermediate frequency (IF) passband of 4-8 GHz offered a noise equivalent temperature difference of 10 ± 1 mK at an integration time of 1 s. We offer a method to significantly increase the integration time without the use of complex measurement equipment. The receiver observed a strong signal over a final detection bandwidth of 4 GHz and offered an Allan time of 5 s.

  18. The stability of a terahertz receiver based on a superconducting integrated receiver

    Energy Technology Data Exchange (ETDEWEB)

    Ozhegov, R V; Gorshkov, K N; Gol' tsman, G N [Department of Physics, Moscow State Pedagogical University, Moscow 119992 (Russian Federation); Kinev, N V; Koshelets, V P, E-mail: Ozhegov@rplab.ru [Institute of Radio Engineering and Electronics, 125009 Moscow (Russian Federation)

    2011-03-15

    We present the results of stability testing of a terahertz radiometer based on a superconducting receiver with a SIS tunnel junction as the mixer and a flux-flow oscillator as the local oscillator. In the continuum mode, the receiver with a noise temperature of 95 K at 510 GHz measured over the intermediate frequency (IF) passband of 4-8 GHz offered a noise equivalent temperature difference of 10 {+-} 1 mK at an integration time of 1 s. We offer a method to significantly increase the integration time without the use of complex measurement equipment. The receiver observed a strong signal over a final detection bandwidth of 4 GHz and offered an Allan time of 5 s.

  19. Marine Science

    African Journals Online (AJOL)

    Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue for the ... tidal height and amplitude can influence light penetra- ...... to environmental parameters in cage culture area of Sepanggar Bay, Malaysia.

  20. Marine Science

    African Journals Online (AJOL)

    Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue for the wide dissem- ... consist of special issues on major events or important thematic issues. ... of sources, including plant and animal by- products.

  1. science poster

    Indian Academy of Sciences (India)

    Administrator

    SRN ADARSH COLLEGE. Cordially invites ... in. Science. " " Date : 11-03-2014 Time : 9:30 am ... SITADEVI RATANCHAND NAHAR ADARSH PU COLLEGE ? ... ADARSH INSTITUTE OF MANAGEMENT AND INFORMATION TECHNOLOGY ?

  2. Marine Science

    African Journals Online (AJOL)

    pod diversity and distribution are important especially since studies on marine biodiversity are scarce .... Method II –. Zamoum &. Furla (2012) protocol. Method III. – Geist et al (2008) protocol ..... Public Library Of Science One 8: 51273.

  3. Science Topics

    Science.gov (United States)

    EPA is one of the world’s leading environmental and human health research organizations. Science provides the foundation for Agency policies, actions, and decisions made on behalf of the American people.

  4. Forensic Science.

    Science.gov (United States)

    Brettell, T. A.; Saferstein, R.

    1989-01-01

    Presents a review of articles appealing to forensic practitioners. Topics include: drugs and poisons, forensic biochemistry, and trace evidence. Lists noteworthy books published on forensic science topics since 1986. (MVL)

  5. Big science

    CERN Multimedia

    Nadis, S

    2003-01-01

    " "Big science" is moving into astronomy, bringing large experimental teams, multi-year research projects, and big budgets. If this is the wave of the future, why are some astronomers bucking the trend?" (2 pages).

  6. Molecular sciences

    International Nuclear Information System (INIS)

    Anon.

    1975-01-01

    The research in molecular sciences summarized includes photochemistry, radiation chemistry, geophysics, electromechanics, heavy-element oxidizers , heavy element chemistry collisions, atoms, organic solids. A list of publications is included

  7. Marine Science

    African Journals Online (AJOL)

    Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue .... shell growth is adversely affected. ... local stressors in action, such as ocean acidification ..... that the distribution of many intertidal sessile animals.

  8. World science

    International Nuclear Information System (INIS)

    Anon.

    1989-01-01

    The aim of the Third World Network of Scientific Organizations (TWNSO), established last year with its headquarters in Trieste, Italy, is to promote the role of science and technology in developing countries. TWNSO, under the presidency of Abdus Salam, is an offshoot of the Third World Academy of Sciences, which has pushed the cause of international scientific collaboration since its establishment in 1983. (orig./HSI).

  9. Apparatus for delivering and receiving radioactive gas

    International Nuclear Information System (INIS)

    Dansky, B.; Epifano, L.; Farella, R.

    1980-01-01

    An apparatus for delivering and receiving gas to and from a patient, such as for lung ventilation studies. In accordance with the invention there is provided a restrictive breathing chamber adapted for coupling to the patient's breathing organs. A system, including a first check valve, is provided for coupling the breathing chamber to an inflatable gas receptacle so as to allow flow only toward the inflatable gas receptacle. Active gas input apparatus, including a second check valve, is also coupled to the breathing chamber, the second check valve allowing flow only toward the breathing chamber means. First and second auxiliary tubes and a gas filter are also provided. A system is provided for coupling the first auxiliary tube from the inflatable receptacle through the gas filter and to an ambient air environment. The second auxiliary tube is coupled from the inflatable receptacle to an ambient air environment. Finally, a gas pump is switchably coupled as between the first and second auxiliary tubes and operative to selectively cause gas flow in the first auxiliary tube toward the ambient environment, and in the second auxiliary tube toward the inflatable receptacle. A gas trap structure is also disclosed

  10. Patrick Janot receives the CNRS silver medal

    CERN Multimedia

    2005-01-01

    Patrick Janot during the award ceremony. (Photo Schwemling, Paris) On 25 November, Patrick Janot of the CERN Physics Department received the CNRS silver medal for IN2P3 (Institut national de physique nucléaire et de physique des particules). This prize, one of the most prestigious awarded by the French research centre, is given to scientists for the 'originality, quality and importance of their work, as recognised both nationally and internationally'. Patrick Janot joined the ALEPH collaboration, one of the four experiments at LEP, then under construction, in 1987. First a CERN Fellow, he went on to work for the CNRS at LAL in 1989. Together with his team, he developed innovative algorithms for the reconstruction of events. This work and others earned him the bronze CNRS medal in 1993, which is awarded to scientists for their first achievements. In 1997, he became a permanent physicist at CERN, where he continued to work for ALEPH. He was appointed LEP scientific co-ordinator for the last two years of the ac...

  11. CERN safety expert receives international award

    CERN Multimedia

    2005-01-01

    On 18 December 2004, the President of the Swiss Electro-technical Committee, Martin Reichle (left), presented the award to Helmut Schönbacher. Helmut Schönbacher, of the Safety Commission at CERN, has received, the "1906 Award" of the International Electrotechnical Commission (IEC) for his standardisation work on the influence of ionizing radiation on insulating materials. From 1986 until 2004, Schönbacher was leader of a working group on radiation composed of internationally recognised experts. It edited standards of the IEC 60544 series on the determination of the effects of ionizing radiation on electrical insulating materials. The working group also edited three IEC Technical Reports on the determination of long-term radiation ageing in polymers. This standardisation work and long-term experience from CERN on the radiation ageing of materials also contributed to research coordination programmes of the International Atomic Energy Agency (IAEA). From 1968 until 1988, Schönbacher was a member of the Rad...

  12. Every second cancer patient receives radiotherapy

    International Nuclear Information System (INIS)

    Ojala, A.

    1996-01-01

    Radiotherapy to treat cancer was given for the first time exactly one hundred years ago. Today, radiotherapy and surgery are the two main modes of treating cancer. One in two cancer patients receives radiotherapy at some point during the course of treatment for the disease. Radiotherapy is applied most commonly in cases where surgery is not possible. Moreover, these two modes of treatment are often used together to supplement each other. About half of new cancer cases detected today can be ordered. The estimate given by the EU for cancers cured is 45 per cent, which is divided between the various treatment modes as follows: surgery 22 %, radiotherapy 12 %, surgery plus radiotherapy 6 %, and drug therapy 6 %. In addition to curative treatment, radiotherapy plays a crucial role in palliative treatment, i.e. treatment that alleviates symptoms. The sensitivity of malignant tumours to radiotherapy varies over a wide range; the same is true for healthy tissues. Radiotherapy can only be used to cure a tumour that is more sensitive to radiation than the surrounding healthy tissue. The tumour must also be sufficiently small in size and limited to a relatively small area. (orig.)

  13. Resonance – Journal of Science Education | Indian Academy of ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 7; Issue 12. Madhu Sudan Receives Nevanlinna Prize. Meena Mahajan Priti Shankar ... Author Affiliations. Meena Mahajan1 Priti Shankar1. Department of Computer Science and Automation, Indian Institute of Science, Bangaiore 560 012, India.

  14. Design and simulation analysis of non-receiver aware and receiver ...

    African Journals Online (AJOL)

    We present multicast extensions to our recently proposed Location Prediction Based Routing (LPBR) protocol, referred to as NR-MLPBR and R-MLPBR, to simultaneously reduce the number of multicast tree discoveries and number of links per tree and/or the hop count per source-receiver path in mobile ad hoc networks ...

  15. In Brief: Science teaching certificate

    Science.gov (United States)

    Showstack, Randy

    2008-11-01

    More than 200 educators will receive fellowships over the next 5 years to participate in NASA's Endeavor Science Teaching Certificate Project, the agency announced on 14 November. Through workshops, online and on-site graduate courses, and NASA educational materials, the project will expose educators to NASA science and engineering and support them in translating the information for use in classrooms. ``Through the program, educators will learn to deliver cutting-edge science into the classroom, promoting science, technology, engineering, and mathematics education,'' according to Joyce Winterton, assistant administrator for education at NASA Headquarters, in Washington, D. C. Project fellows will earn a certificate from Teachers College Innovations at Teachers College, Columbia University, New York, and graduate credit from other institutional partners. For more information, visit http://education.nasa.gov/home/index.html.

  16. Chelle L. Gentemann Receives 2013 Charles S. Falkenberg Award: Response

    Science.gov (United States)

    Gentemann, Chelle L.

    2014-01-01

    Receiving the 2013 Charles S. Falkenberg Award of the American Geophysical Union came completely as a surprise, wonderful but humbling. It is attributable to those who have made my work possible. Peter Minnett is first on the list. He is a great friend and colleague, an example for us all of how to conduct scientific research. Unstintingly generous with his time, resources, and ideas, he always puts scientific advancement ahead of personal gain. Eric Lindstrom, program manager for NASA's physical oceanography program, has been a role model on how to run large projects and still stay focused on scientific results. His support of this project from the beginning has been instrumental in its success. I also have been lucky enough to work with Frank Wentz, one of the smartest scientists I know. My husband, David White, has put up with much as I have focused on this work, as have our 3-year-old sons, Austin and Bennett. The rest of my family has given their support, love, and inspiration. I wish that my grandfather, who encouraged my interest in science, could be here to share this honor.

  17. Qualification test for the flexible receiver

    International Nuclear Information System (INIS)

    Keller, C.M.

    1994-01-01

    This document provides the test plan and procedures to certify and design verify the 42 inch and 4--6 inch Flexible Receiver (FR) is a safety class 3 system. Verification of the design will be handled in two parts. The first part will be to show that it meets design requirements set forth by documents and the second part will perform test(s) to verify its operational aspects. To qualify the design of the FR systems for field use this test will demonstrate environmentally safe removal of a Tank Farm pump mock-up from a Tank Farm riser mock-up. Testing will also demonstrate the performance of supporting equipment. The FR and the Secondary Bagging (SB) equipment shall be tested to verify successful operation of the equipment to the following criteria: The FR can be placed on a riser and connections made to the supporting equipment; The FR bag can accept equipment and be successfully sealed; The SB system encases the seal of the primary FR bag; The flexible bag(s) do not tear and maintain integrity during the entire test; The FR control system operates in the fail safe forced sequence mode; The FR control system will operate in the manual override mode (out of sequence operations); The CCTV Video system monitors and records the removal of the test item; The spray wash system operates without leaks and effectively provides coverage; The item being removed can be reinserted to a depth of 8 feet and the bag reinstalled onto the vertical bag supports; and The system prohibits momentary mechanical fluctuations due to the application of system power, including power interruptions

  18. Crustal Structure beneath Alaska from Receiver Functions

    Science.gov (United States)

    Zhang, Y.; Li, A.

    2017-12-01

    The crustal structure in Alaska has not been well resolved due to the remote nature of much of the state. The USArray Transportable Array (TA), which is operating in Alaska and northwestern Canada, significantly increases the coverage of broadband seismic stations in the region and allows for a more comprehensive study of the crust. We have analyzed P-receiver functions from earthquake data recorded by 76 stations of the TA and AK networks. Both common conversion point (CCP) and H-K methods are used to estimate the mean crustal thickness. The results from the CCP stacking method show that the Denali fault marks a sharp transition from thick crust in the south to thin crust in the north. The thickest crust up to 52 km is located in the St. Elias Range, which has been formed by oblique collision between the Yakutat microplate and North America. A thick crust of 48 km is also observed beneath the eastern Alaska Range. These observations suggest that high topography in Alaska is largely compensated by the thick crust root. The Moho depth ranges from 28 km to 35 km beneath the northern lowlands and increases to 40-45 km under the Books Range. The preliminary crustal thickness from the H-K method generally agrees with that from the CCP stacking with thicker crust beneath high mountain ranges and thinner crust beneath lowlands and basins. However, the offshore part is not well constrained due to the limited coverage of stations. The mean Vp/Vs ratio is around 1.7 in the Yukon-Tanana terrane and central-northern Alaska. The ratio is about 1.9 in central and southern Alaska with higher values at the Alaska Range, Wrangell Mountains, and St. Elias Range. Further data analyses are needed for obtaining more details of the crustal structure in Alaska to decipher the origin and development of different tectonic terranes.

  19. Hypoglycaemia monitoring in a medical receiving ward.

    Science.gov (United States)

    Ellis, Ryan

    2015-01-01

    It has been suggested that current care for diabetes inpatients remains inadequate and that greater attention is required for high quality management. In this project the aspect of hypoglycaemia was studied in a busy medical receiving ward at the Glasgow Royal Infirmary. A large proportion of inpatients have diabetes and episodes of hypoglycaemia experienced by this population can delay discharge and indeed be detrimental to health. Thus it is important from both an organisational and patient perspective to manage this population well. In this project BM machine data was analysed to identify patients who were hypoglycaemic. These patients were then tracked down to study the subsequent management and compared this against recommended guidance. Following this an intervention was made to promote identification, management, documentation, and prevention of hypoglycaemia. This was deliberately a simple intervention involving discussions with staff and provision of basic documented guidance next to every BM machine. In the first phase 17 patients were identified and in a second and third phase 16 patients each time were further identified. Patients in the study were both type 1 and type 2 diabetics. Initial results in phase I were compared to results in phase II and III respectively. This intervention produced significant improvements in management with correct monitoring of low BMs (i.e. upon identification of low BM repeat within 1 hour) improving from 47% to 100% (for Phase II and III). Also, recording of preventative measures of hypoglycaemia improved from 35% to 88% and 94% with an improvement from 24% to 69% and 75% in recording of treatment given if needed. In conclusion, the study successfully demonstrated that simple measures can significantly improve the quality care of inpatient diabetic patients in relation to hypoglycaemia management.

  20. Investigation of the receivability of VLF standard time and frequency ...

    African Journals Online (AJOL)

    This study is on the receivability of some standard time and frequency signals in the VLF range in Zaria, Nigeria. Signal field strengths of various stations were estimated, and a suitable radio receiving system was set up to receive them. Using the assembled receiver, some of the transmissions, including the Omega W/L at ...

  1. 37 CFR 1.412 - The United States Receiving Office.

    Science.gov (United States)

    2010-07-01

    ... Information § 1.412 The United States Receiving Office. (a) The United States Patent and Trademark Office is a Receiving Office only for applicants who are residents or nationals of the United States of America. (b) The... “United States Receiving Office” or by the abbreviation “RO/US.” (c) The major functions of the Receiving...

  2. The sciences of science communication

    OpenAIRE

    Fischhoff, Baruch

    2013-01-01

    The May 2012 Sackler Colloquium on “The Science of Science Communication” brought together scientists with research to communicate and scientists whose research could facilitate that communication. The latter include decision scientists who can identify the scientific results that an audience needs to know, from among all of the scientific results that it would be nice to know; behavioral scientists who can design ways to convey those results and then evaluate the success of those attempts; a...

  3. Science Fairs for Science Literacy

    Science.gov (United States)

    Mackey, Katherine; Culbertson, Timothy

    2014-03-01

    Scientific discovery, technological revolutions, and complex global challenges are commonplace in the modern era. People are bombarded with news about climate change, pandemics, and genetically modified organisms, and scientific literacy has never been more important than in the present day. Yet only 29% of American adults have sufficient understanding to be able to read science stories reported in the popular press [Miller, 2010], and American students consistently rank below other nations in math and science [National Center for Education Statistics, 2012].

  4. Guerilla Science: Outreach at music and art festival

    Science.gov (United States)

    Rosin, Mark

    2012-10-01

    Guerilla Science a non-profit science education organization that, since 2007, has brought live events to unconventional venues for science, such as music festivals, art galleries, banquets, department stores and theaters. Guerilla Science sets science free by taking it out of the lab and into the traditional domains of the arts. By producing events that mix science with art, music and play, they create unique opportunities for adult audiences to experience science in unorthodox ways, such as interactive events, games, live experiments, demonstrations and performances by academics, artists, musicians, actors, and professional science communicators. Much of Guerilla Science's work has focused on astrophysical and terrestrial plasmas, and this presentation will provide an overview of Guerilla Science's work in this area. Guerilla Science has produced over twenty events, receiving international media coverage, and directly reached over fifteen thousand members of the public.

  5. Is normal science good science?

    Directory of Open Access Journals (Sweden)

    Adrianna Kępińska

    2015-09-01

    Full Text Available “Normal science” is a concept introduced by Thomas Kuhn in The Structure of Scientific Revolutions (1962. In Kuhn’s view, normal science means “puzzle solving”, solving problems within the paradigm—framework most successful in solving current major scientific problems—rather than producing major novelties. This paper examines Kuhnian and Popperian accounts of normal science and their criticisms to assess if normal science is good. The advantage of normal science according to Kuhn was “psychological”: subjective satisfaction from successful “puzzle solving”. Popper argues for an “intellectual” science, one that consistently refutes conjectures (hypotheses and offers new ideas rather than focus on personal advantages. His account is criticized as too impersonal and idealistic. Feyerabend’s perspective seems more balanced; he argues for a community that would introduce new ideas, defend old ones, and enable scientists to develop in line with their subjective preferences. The paper concludes that normal science has no one clear-cut set of criteria encompassing its meaning and enabling clear assessment.

  6. Exploring science through science fiction

    CERN Document Server

    Luokkala, Barry B

    2014-01-01

    How does Einstein’s description of space and time compare with Dr. Who? Can James Bond really escape from an armor-plated railroad car by cutting through the floor with a laser concealed in a wristwatch? What would it take to create a fully-intelligent android, such as Star Trek’s Commander Data? How might we discover intelligent civilizations on other planets in the galaxy? Is human teleportation possible? Will our technological society ever reach the point at which it becomes lawful to discriminate on the basis of genetic information, as in the movie GATTACA? Exploring Science Through Science Fiction addresses these and other interesting questions, using science fiction as a springboard for discussing fundamental science concepts and cutting-edge science research. The book is designed as a primary text for a college-level course which should appeal to students in the fine arts and humanities as well as to science and engineering students. It includes references to original research papers, landmark scie...

  7. Pure Science and Applied Science

    Directory of Open Access Journals (Sweden)

    Robert J. Aumann

    2011-01-01

    Full Text Available (Excerpt The name of my talk is Pure Science and Applied Science, and the idea I would like to sell to you today is that there is no such thing as “pure” or “applied” science. In other words, there is such a thing as science, but there is no difference between pure and applied science. Science is one entity and cannot be separated into different categories. In order to back that up, I would like to tell you a little story. As an undergraduate, I studied mathematics at City College in New York. At that time, what was called Pure Mathematics was in vogue, and the more prominent mathematicians were a little contemptuous of any kind of application. A very famous, prominent mathematician in the first half of the previous century by the name of G. H. Hardy, who was in a branch of mathematics called number theory, said that the only thing he regretted was that he unwittingly did some important work in mathematical genetics that eventually turned out to have some application. … Such was the atmosphere in the late ’40s of the previous century and, being a young man and impressionable, I was swept up in this atmosphere.

  8. Conference Proceedings in the IAEA Library (Received Up To May 1969)

    International Nuclear Information System (INIS)

    1970-01-01

    This is the IAEA's first computer-produced list of proceedings of conferences. It identifies all volumes received in the IAEA Library up to May 1969. The purpose of the list is to assist members of the IAEA staff and co-operating libraries to identify conferences, congresses, meetings, symposia and training courses relating to nuclear science and technology and to locate the proceedings

  9. Science Outside the Lab: Helping Graduate Students in Science and Engineering Understand the Complexities of Science Policy.

    Science.gov (United States)

    Bernstein, Michael J; Reifschneider, Kiera; Bennett, Ira; Wetmore, Jameson M

    2017-06-01

    Helping scientists and engineers challenge received assumptions about how science, engineering, and society relate is a critical cornerstone for macroethics education. Scientific and engineering research are frequently framed as first steps of a value-free linear model that inexorably leads to societal benefit. Social studies of science and assessments of scientific and engineering research speak to the need for a more critical approach to the noble intentions underlying these assumptions. "Science Outside the Lab" is a program designed to help early-career scientists and engineers understand the complexities of science and engineering policy. Assessment of the program entailed a pre-, post-, and 1 year follow up survey to gauge student perspectives on relationships between science and society, as well as a pre-post concept map exercise to elicit student conceptualizations of science policy. Students leave Science Outside the Lab with greater humility about the role of scientific expertise in science and engineering policy; greater skepticism toward linear notions of scientific advances benefiting society; a deeper, more nuanced understanding of the actors involved in shaping science policy; and a continued appreciation of the contributions of science and engineering to society. The study presents an efficacious program that helps scientists and engineers make inroads into macroethical debates, reframe the ways in which they think about values of science and engineering in society, and more thoughtfully engage with critical mediators of science and society relationships: policy makers and policy processes.

  10. Adhesion science

    CERN Document Server

    Comyn, John

    1997-01-01

    The use of adhesives is widespread and growing, and there are few modern artefacts, from the simple cereal packet, to the jumbo jet, that are without this means of joining. Adhesion Science provides an illuminating account of the science underlying the use of adhesives, a branch of chemical technology which is fundamental to the science of coatings and composite materials and to the performance of all types of bonded structures. This book guides the reader through the essential basic polymer science, and the chemistry of adhesives in use at present. It discusses surface preparation for adhesive bonding, and the use of primers and coupling agents. There is a detailed chapter on contact angles and what can be predicted from them. A simple guide on stress distribution joints and how this relates to testing is included. It also examines the interaction of adhesives and the environment, including an analysis of the resistance of joints to water, oxygen and ultra-violet light. Adhesion Science provides a comprehens...

  11. Science Fiction on Film.

    Science.gov (United States)

    Burmester, David

    1985-01-01

    Reviews science fiction films used in a science fiction class. Discusses feature films, short science fiction films, short story adaptations, original science fiction pieces and factual science films that enrich literature. (EL)

  12. Islam and Science

    Science.gov (United States)

    Salam, Abdus

    The following sections are included: * The Holy Quran and Science * Modem Science, A Greco- Islamic Legacy * The Decline of Sciences in Islam * The Limitations of Science * Faith and Science * The Present Picture of Sciences in the Islamic Countries * Renaissance of Sciences in Islam * Steps Needed for Building up Sciences in the Islamic Countries * Science Education * Science Foundations in Islam * Technology in Our Countries * Concluding Remarks * REFERENCES

  13. Network science

    CERN Document Server

    Barabasi, Albert-Laszlo

    2016-01-01

    Networks are everywhere, from the Internet, to social networks, and the genetic networks that determine our biological existence. Illustrated throughout in full colour, this pioneering textbook, spanning a wide range of topics from physics to computer science, engineering, economics and the social sciences, introduces network science to an interdisciplinary audience. From the origins of the six degrees of separation to explaining why networks are robust to random failures, the author explores how viruses like Ebola and H1N1 spread, and why it is that our friends have more friends than we do. Using numerous real-world examples, this innovatively designed text includes clear delineation between undergraduate and graduate level material. The mathematical formulas and derivations are included within Advanced Topics sections, enabling use at a range of levels. Extensive online resources, including films and software for network analysis, make this a multifaceted companion for anyone with an interest in network sci...

  14. Nonlinear Science

    CERN Document Server

    Yoshida, Zensho

    2010-01-01

    This book gives a general, basic understanding of the mathematical structure "nonlinearity" that lies in the depths of complex systems. Analyzing the heterogeneity that the prefix "non" represents with respect to notions such as the linear space, integrability and scale hierarchy, "nonlinear science" is explained as a challenge of deconstruction of the modern sciences. This book is not a technical guide to teach mathematical tools of nonlinear analysis, nor a zoology of so-called nonlinear phenomena. By critically analyzing the structure of linear theories, and cl

  15. Indiana University receives grant from National Science Foundation to help build global grid network

    CERN Multimedia

    2001-01-01

    The NSF awarded a consortium of 15 universities $13.65 million to build the International Virtual Data Grid Laboratory, or iVDGL. The iVDGL will consist of a seamless network of thousands of computers at 40 locations in the US, Europe and Asia. These computers will work together as a powerful grid capable of handling petabytes of data. Indiana University will make significant contributions to this project by providing a prototype Tier-2 Data Center for the ATLAS high energy physics experiment and the International Grid Operations Center.

  16. Thwarting science by protecting the received wisdom on tobacco addiction from the scientific method

    Directory of Open Access Journals (Sweden)

    DiFranza Joseph R

    2010-11-01

    Full Text Available Abstract In their commentary, Dar and Frenk call into question the validity of all published data that describe the onset of nicotine addiction. They argue that the data that describe the early onset of nicotine addiction is so different from the conventional wisdom that it is irrelevant. In this rebuttal, the author argues that the conventional wisdom cannot withstand an application of the scientific method that requires that theories be tested and discarded when they are contradicted by data. The author examines the origins of the threshold theory that has represented the conventional wisdom concerning the onset of nicotine addiction for 4 decades. The major tenets of the threshold theory are presented as hypotheses followed by an examination of the relevant literature. Every tenet of the threshold theory is contradicted by all available relevant data and yet it remains the conventional wisdom. The author provides an evidence-based account of the natural history of nicotine addiction, including its onset and development as revealed by case histories, focus groups, and surveys involving tens of thousands of smokers. These peer-reviewed and replicated studies are the work of independent researchers from around the world using a variety of measures, and they provide a consistent and coherent clinical picture. The author argues that the scientific method demands that the fanciful conventional wisdom be discarded and replaced with the evidence-based description of nicotine addiction that is backed by data. The author charges that in their attempt to defend the conventional wisdom in the face of overwhelming data to the contrary, Dar and Frenk attempt to destroy the credibility of all who have produced these data. Dar and Frenk accuse other researchers of committing methodological errors and showing bias in the analysis of data when in fact Dar and Frenk commit several errors and reveal their bias by using a few outlying data points to misrepresent an entire body of research, and by grossly and consistently mischaracterizing the claims of those whose research they attack.

  17. Thwarting science by protecting the received wisdom on tobacco addiction from the scientific method.

    Science.gov (United States)

    Difranza, Joseph R

    2010-11-04

    In their commentary, Dar and Frenk call into question the validity of all published data that describe the onset of nicotine addiction. They argue that the data that describe the early onset of nicotine addiction is so different from the conventional wisdom that it is irrelevant. In this rebuttal, the author argues that the conventional wisdom cannot withstand an application of the scientific method that requires that theories be tested and discarded when they are contradicted by data. The author examines the origins of the threshold theory that has represented the conventional wisdom concerning the onset of nicotine addiction for 4 decades. The major tenets of the threshold theory are presented as hypotheses followed by an examination of the relevant literature. Every tenet of the threshold theory is contradicted by all available relevant data and yet it remains the conventional wisdom. The author provides an evidence-based account of the natural history of nicotine addiction, including its onset and development as revealed by case histories, focus groups, and surveys involving tens of thousands of smokers. These peer-reviewed and replicated studies are the work of independent researchers from around the world using a variety of measures, and they provide a consistent and coherent clinical picture. The author argues that the scientific method demands that the fanciful conventional wisdom be discarded and replaced with the evidence-based description of nicotine addiction that is backed by data. The author charges that in their attempt to defend the conventional wisdom in the face of overwhelming data to the contrary, Dar and Frenk attempt to destroy the credibility of all who have produced these data. Dar and Frenk accuse other researchers of committing methodological errors and showing bias in the analysis of data when in fact Dar and Frenk commit several errors and reveal their bias by using a few outlying data points to misrepresent an entire body of research, and by grossly and consistently mischaracterizing the claims of those whose research they attack.

  18. Science and Information Conference 2014

    CERN Document Server

    Kapoor, Supriya; Bhatia, Rahul

    2015-01-01

    The book Intelligent Systems in Science and Information 2014 is  the carefully edited collection of 25 extended chapters from selected papers in the field of Computational Intelligence that , which received highly recommended feedback during the Science and Information Conference (SAI) 2014 review process. All chapters have gone through substantial extension and consolidation and were subject to another round of rigorous review and additional modification and represent the state of the art of the cutting-edge research and technologies in the related areas.

  19. From learning science to teaching science: What transfers?

    Science.gov (United States)

    Harlow, Danielle Boyd

    As educational researchers and teacher educators, we have the responsibility to help teachers gain the skills and knowledge necessary to provide meaningful learning activities for their students. For elementary school science, this means helping teachers create situations in which children can participate in the practices associated with scientific inquiry. Through the framework of transfer I investigated how a professional development course based on an inquiry-based physics curriculum influenced five elementary teachers teaching practices and identified the factors that led to or hindered this transfer. In this study, evidence of transfer consisted of episodes where the teachers used the ideas learned in the physics course to solve new problems such as transforming activities to be appropriate for their students and responding to unexpected students' ideas. The findings of this study highlight the many different ways that teachers use what they learn in content courses to teach science to elementary children. While some teachers transferred pedagogical practices along with the content, others transformed the content to be useful in already existing pedagogical frameworks, and still others show little or no evidence of transfer. What the teachers transferred depended upon their existing teaching context as well as their prior ideas about teaching science and physics content. Specifically, the findings of this study suggest that the teachers transferred only what they sought from the course. One implication of this study is that the sort of science training we provide teachers can affect far more than just the teachers' conceptual understanding of science and performance on written conceptual exams. Science courses have the potential to impact the sort of science education that K-5 children receive in elementary classrooms in terms of the topics taught but the way that science is represented. An additional implication is that teaching science to teachers in ways

  20. Superior Coherent Receivers for AF Relaying with Distributed Alamouti Code

    KAUST Repository

    Khan, Fahd Ahmed

    2012-01-01

    Coherent receivers are derived for a pilot-symbol aided distributed Alamouti-coded system with imperfect channel state information. The derived coherent receivers do not perform channel estimation but rather use the received pilot signals for decoding. The derived receiver metrics use the statistics of the channel to give improved performance. The performance is further improved by using the decision history. Simulation results show that a performance gain of up to 1.8 dB can be achieved for the new receivers with decision history as compared with the conventional mismatched coherent receiver. © 2011 IEEE.

  1. Animal Science.

    Science.gov (United States)

    VanCleave, Janice

    2001-01-01

    Presents a set of hands-on, outdoor science experiments designed to teach elementary school students about animal adaptation. The experiments focus on: how color camouflage affects an insect population; how spiderlings find a home; and how chameleons camouflage themselves by changing color. (SM)

  2. Marine Science

    African Journals Online (AJOL)

    ination of high quality research generated in the Western Indian Ocean (WIO) region, ... fisheries, recovery and restoration processes, legal and institutional frameworks, and interactions/relationships ... Science features state-of-the-art review articles and short communications. ... Non-metric multidimensional scaling (nMDS).

  3. Brewing Science

    Science.gov (United States)

    Pelter, Michael

    2006-01-01

    Following the brewing process from grain to glass, this course uses the biological and chemical principles of brewing to teach science to the nonscience major. Discussion of the scientific aspects of malting, mashing, fermentation, and the making of different beer styles is complemented by laboratory exercises that use scientific methods to…

  4. Redirecting science

    International Nuclear Information System (INIS)

    Aaserud, F.

    1990-01-01

    This book contains the following chapters. Science policy and fund-raising up to 1934; The Copenhagen spirit at work, late 1920's to mid-1930s; The refugee problem, 1933 to 1935; Experimental biology, late 1920s to 1935; and Consolidation of the transition, 1935 to 1940

  5. Systems Science

    Science.gov (United States)

    Christakis, Alexander; Hammond, Debora; Jackson, Michael; Laszlo, Alexander; Mitroff, Ian; Snowden, Dave; Troncale, Len; Carr-Chellman, Alison; Spector, J. Michael; Wilson, Brent

    2013-01-01

    Scholars representing the field of systems science were asked to identify what they considered to be the most exciting and imaginative work currently being done in their field, as well as how that work might change our understanding. The scholars included Alexander Christakis, Debora Hammond, Michael Jackson, Alexander Laszlo, Ian Mitroff, Dave…

  6. Marine Science

    African Journals Online (AJOL)

    J O U R N A L O F. Marine Science. Coral reefs of Mauritius in a changing global climate ..... in confined aquifers, and a lesser influence in uncon- fined systems. On the ... massive cloud cover during the critical months, some. 70% bleaching ...

  7. Science Notes.

    Science.gov (United States)

    Shaw, G. W.; And Others

    1989-01-01

    Provides a reading list for A- and S-level biology. Contains several experiments and demonstrations with topics on: the intestine, bullock corneal cells, valences, the science of tea, automated hydrolysis, electronics characteristics, bromine diffusion, enthalpy of vaporization determination, thermometers, pendulums, hovercraft, Bernoulli fluid…

  8. Cognitive Science.

    Science.gov (United States)

    Cocking, Rodney R.; Mestre, Jose P.

    The focus of this paper is on cognitive science as a model for understanding the application of human skills toward effective problem-solving. Sections include: (1) "Introduction" (discussing information processing framework, expert-novice distinctions, schema theory, and learning process); (2) "Application: The Expert-Novice…

  9. Materials science

    International Nuclear Information System (INIS)

    2002-01-01

    the document is a collection of papers on different aspects of materials science. It discusses many items such as semiconductors, surface properties and interfaces, construction and civil engineering, metallic materials, polymers and composites, biology and biomaterials, metallurgy etc.. - 1 - Document1 Document1

  10. Science Smiles

    Indian Academy of Sciences (India)

    Page 1. Science Smiles. RKLaxman. I bought the plot to build my office. But the activists would not let me touch anything lest it should upset the ecological balance here. R -E-SO-N-A-N-C-E -, -Fe-b-ru-ary-19-9-S -----~-------------

  11. Actuarial Science.

    Science.gov (United States)

    Warren, Bette

    1982-01-01

    Details are provided of a program on actuarial training developed at the State University of New York (SUNY) at Binghamton through the Department of Mathematical Sciences. An outline of its operation, including a few statistics on students in the program, is included. (MP)

  12. Organizational Science

    Science.gov (United States)

    Beriwal, Madhu; Clegg, Stewart; Collopy, Fred; McDaniel, Reuben, Jr.; Morgan, Gareth; Sutcliffe, Kathleen; Kaufman, Roger; Marker, Anthony; Selwyn, Neil

    2013-01-01

    Scholars representing the field of organizational science, broadly defined as including many fields--organizational behavior and development, management, workplace performance, and so on--were asked to identify what they considered to be the most exciting and imaginative work currently being done in their field, as well as how that work might…

  13. Subterranean science

    Science.gov (United States)

    Paling, Sean; Sadler, Stephen

    2015-05-01

    The deep underground laboratories of the world are no longer the scientific realm of astroparticle physics alone. From Mars rovers to muon tomography, and from radioactive dating to astrobiology, Sean Paling and Stephen Sadler describe the renaissance in the science taking place far beneath our feet.

  14. Wyndham Science.

    Science.gov (United States)

    Messel, H.

    Described is the Wyndham science component of the program designed for the six years of secondary schooling for students in New South Wales, Australia. A subjective evaluation of the program and suggestions for improving course materials and teaching are given. There are six major sections in the report: (1) a general outline of the structure and…

  15. Science and anti-science

    CERN Document Server

    Holton, Gerald

    1997-01-01

    What is good science? What goal--if any--is the proper end of scientific activity? Is there a legitimating authority that scientists mayclaim? Howserious athreat are the anti-science movements? These questions have long been debated but, as Gerald Holton points out, every era must offer its own responses. This book examines these questions not in the abstract but shows their historic roots and the answers emerging from the scientific and political controversies of this century. Employing the case-study method and the concept of scientific thematathat he has pioneered, Holton displays the broad scope of his insight into the workings of science: from the influence of Ernst Mach on twentiethcentury physicists, biologists, psychologists, and other thinkers to the rhetorical strategies used in the work of Albert Einstein, Niels Bohr, and others; from the bickering between Thomas Jefferson and the U.S. Congress over the proper form of federal sponsorship of scientific research to philosophical debates since Oswald...

  16. Caring Science or Science of Caring.

    Science.gov (United States)

    Turkel, Marian C; Watson, Jean; Giovannoni, Joseph

    2018-01-01

    The concepts caring science and science of caring have different meanings; however, they are often used interchangeably. The purpose of this paper is to present an overview of the synthesis of the scholarly literature on the definitions of the science of caring and caring science and to affirm the authors' perspective relating to the language of caring science. Caring science advances the epistemology and ontology of caring. Ideas related to caring science inquiry are presented, and the authors acknowledge the future of caring science as unitary caring science.

  17. Portraying Real Science in Science Communication

    Science.gov (United States)

    van Dijk, Esther M.

    2011-01-01

    In both formal and informal settings, not only science but also views on the nature of science are communicated. Although there probably is no singular nature shared by all fields of science, in the field of science education it is commonly assumed that on a certain level of generality there is a consensus on many features of science. In this…

  18. Interfacial and Surface Science | Materials Science | NREL

    Science.gov (United States)

    Science group within the Material Science Center. He oversees research studies of surfaces and interfaces Interfacial and Surface Science Interfacial and Surface Science Image of irregular-outlined, light address a broad range of fundamental and applied issues in surface and interfacial science that are

  19. FFT Based VLSI Digital One Bit Electronic Warfare Receiver

    National Research Council Canada - National Science Library

    Chien-In, Henry

    1998-01-01

    ... (1 GHz) digital receiver designed for electronic warfare applications. The receiver can process two simultaneous signals and has the potential for fabrication on a single multi-chip module (MCM...

  20. A Correlating Receiver for OFDM at Low SNR

    NARCIS (Netherlands)

    Kokkeler, Andre B.J.; Smit, Gerardus Johannes Maria

    By extending OFDM symbols, acceptable BER performance can be achieved at low SNRs. Two alternative differential receiver architectures are presented, a receiver based on a FX correlator (Fourier transformation before correlation) and based on an XF correlator (correlation before Fourier

  1. University Rankings and Social Science

    OpenAIRE

    Marginson, S.

    2014-01-01

    University rankings widely affect the behaviours of prospective students and their families, university executive leaders, academic faculty, governments and investors in higher education. Yet the social science foundations of global rankings receive little scrutiny. Rankings that simply recycle reputation without any necessary connection to real outputs are of no common value. It is necessary that rankings be soundly based in scientific terms if a virtuous relationship between performance and...

  2. UK science plans spending spree

    CERN Multimedia

    Loder, N

    2000-01-01

    The science budget will grow by more than 4 per cent over the previous year in each of the next three years. Over the next three months the research councils will battle it out to see how much of these extra funds each will receive. The areas identified by the councils for the extra money include bioinformatics, information technology, nanotechnology and post-genomic research (1 page).

  3. Ethics in Science.

    Science.gov (United States)

    Sharma, Om P

    2015-09-01

    Ethics are a set of moral principles and values a civilized society follows. Doing science with principles of ethics is the bedrock of scientific activity. The society trusts that the results and the projected outcome of any scientific activity is based on an honest and conscientious attempt by the scientific community. However, during the last few decades, there has been an explosion of knowledge and the advent of digital age. We can access the publications of competitors with just a "click". The evaluation parameters have evolved a lot and are based on impact factors, h-index and citations. There is a general feeling that the scientific community is under a lot of pressure for fulfilling the criteria for upward growth and even retention of the positions held. The noble profession of scientific research and academics has been marred by the temptation to falsify and fabricate data, plagiarism and other unethical practices. Broadly speaking, the breach of ethics involves: plagiarism, falsification of data, redundant (duplicate) publication, drawing far-fetched conclusions without hard data, for early publicity, gift authorship (receiving as well as giving), not giving sufficient attention and consideration to scholars and post-docs as per the norms, self promotion at the cost of team-members, treating colleagues (overall all juniors) in a feudal way and Machiavellianism (cunningness and duplicity in general conduct and push to positions of power and pelf). Misconduct in Indian academics and science is also under a lot of focus. It is important and urgent that science, engineering, and health departments and institutions in our country have in place systems for education and training in pursuit of science with ethics by sound and professional courses in Responsible Conduct of Research. All research and academic institution must have the Office of Ethics for information, guidelines, training and professional oversight of conduct of research with the ethos and ethics

  4. Initial results for compressive sensing in electronic support receiver systems

    CSIR Research Space (South Africa)

    Du Plessis, WP

    2011-04-01

    Full Text Available determined by the antenna and microwave system comprising the transmitter and receiver, while the instantaneous bandwidth is mainly determined by the Analog-to-Digital Converter (ADC) in the receiver. A radar can thus operate at any frequency within its... Electronic/Electromagnetic Support Measures (ESM) was used historically [1], [2]. Modern ES receiver systems are based on digital receivers allowing powerful signal processing techniques to be used [3], [4]. Recent developments in sampling technology...

  5. Inquiry-based science teasching competence of pre-service primary teachers

    NARCIS (Netherlands)

    Alake-Tuenter, E.

    2014-01-01

    In recent years, improving primary science education has received considerable attention. In particular, researchers and policymakers advocate the use of inquiry-based science teaching and learning, believing that pupils learn best through direct personal experience and by incorporating new

  6. Science Theatre as dissemination of environmental awareness

    DEFF Research Database (Denmark)

    Chemi, Tatiana; Kastberg, Peter

    2015-01-01

    hides behind this label? Is this concept at all new? The purpose of this article is threefold: 1) to describe Science Theatre in terms of typology with specific focus on environmental subjects, 2) to address Science Theatre as a borderline meeting place (agora or arena) between science and theatre 3......A community project with the intention of developing specific communication on environmental issues for children age 3-7 allies with a theatre artist and storyteller. The result is a meeting between science and theatre. Theatre, with its borderline praxis between entertainment and reflection...... offered a precious opportunity to deliver difficult scientific or social issues within the environmental mindset to such youngsters, an opportunity well exploited and well received. But what makes Science Theatre an obvious choice in order to communicate natural sciences or environmental issues? What...

  7. 3D-RTK Capability of Single Gnss Receivers

    Science.gov (United States)

    Stempfhuber, W.

    2013-08-01

    Small, aerial objects are now being utilised in many areas of civil object capture and monitoring. As a rule, the standard application of a simple GPS receiver with code solutions serves the 3D-positioning of the trajectories or recording positions. Without GPS correction information, these can be calculated at an accuracy of 10-20 metres. Corrected code solutions (DGPS) generally lie in the metre range. A precise 3D-positioning of the UAV (unmanned aerial vehicle) trajectories in the centimetre range provides significant improvements. In addition, the recording time of each sensor can be synchronized with the exact time stamp of the GNSS low-cost system. In recent years, increasing works on positioning from L1 GPS raw data have been published. Along with this, the carrier phase measurements with the established evaluation algorithms are analysed in the post processing method to centimetre-exact positions or to high-precision 3D trajectories [e.g. Schwieger and Gläser, 2005 or Korth and Hofmann 20011]. The use of reference information from local reference stations or a reference network serves the purpose of carrier phase ambiguity resolution. Furthermore, there are many activities worldwide in the area of PPP techniques (Precise Point Positioning). However, dual frequency receivers are primarily used in this instance. Moreover, very long initialisation times must be scheduled for this. A research project on the subject of low-cost RTK GNSS was developed for real-time applications at the Beuth Hochschule für Technik Berlin University of Applied Sciences [Stempfhuber 2012]. The overall system developed for the purpose of real-time applications with centimetre accuracy is modularly constructed and can be used for various applications (http://prof.beuthhochschule.de/stempfhuber/seite-publikation/). With hardware costing a few hundred Euro and a total weight of 500-800 g (including the battery), this system is ideally suited for UAV applications. In addition, the

  8. 20 CFR 404.1042 - Wages when paid and received.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Wages when paid and received. 404.1042... DISABILITY INSURANCE (1950- ) Employment, Wages, Self-Employment, and Self-Employment Income Wages § 404.1042 Wages when paid and received. (a) In general. Wages are received by an employee at the time they are...

  9. 5 CFR 551.425 - Time spent receiving medical attention.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Time spent receiving medical attention... Relation to Other Activities § 551.425 Time spent receiving medical attention. (a) Time spent waiting for and receiving medical attention for illness or injury shall be considered hours of work if: (1) The...

  10. THE CORRELATED TRACK RECEIVER OF TONE TRACK CIRCUITS

    Directory of Open Access Journals (Sweden)

    K. V. Goncharov

    2011-05-01

    Full Text Available The work is devoted to further improvement of processing algorithm of checking signals of rail line. The simulation modeling of correlation track receiver of tone rail circuits has been executed; the benchmark analysis of correlation receiver and direct amplifier receiver has been executed.

  11. Noise and intercept point calculation for modern radio receiver planning

    DEFF Research Database (Denmark)

    Iversen, Christian Rye; Kolding, T. E.

    2001-01-01

    The paper presents analytical expressions for determining noise and intercept points for cascaded radio receiver stages. The theory allows for active receiver stages with frequency selectivity and flexible impedance levels. This makes the method highly usable for planning of modem receivers where...

  12. IMPROVEMENT WAYS OF ACCOUNTING AND INTERNAL AUDIT OF ENTERPRISE RECEIVABLES

    Directory of Open Access Journals (Sweden)

    V. D. Zelikman

    2014-06-01

    Full Text Available Purpose. Determination and substantiation of ways to improve accounting and internal audit of receivables at the enterprises. Methodology.The basic principles and ways for improvement of accounting and internal audit systems that should help Ukrainian enterprises to optimize receivables are considered. Findings. It is proved that the receivables optimization is possible on the basis of improving its accounting and internal audit. The basic ways for improvement of accounting and internal audit of receivable are determined. They are: improvement of normative coverage of receivables at the enterprises; providing further harmonization of financial and tax accounting in the part of formation of the doubtful debt receivables, accounting of bad and doubtful receivables and etc. The formation of department for internal audit to control the doubtful and bad debts; providing the timely control of the receivables and payables ratio; determination and support of the optimal value of the receivables at the enterprises. Originality. Improvement of accounting and internal audit of receivables at the enterprises by the way of development of internal audit system and optimization of the receivables size. Practical value. The proposed recommendations will improve the accounting and internal audit system of receivables at the enterprises of Ukraine.

  13. 75 FR 26843 - Petition for Exemption; Summary of Petition Received

    Science.gov (United States)

    2010-05-12

    ...] Petition for Exemption; Summary of Petition Received AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of petition for exemption received. SUMMARY: This notice contains a summary of a petition... the legal status of any petition or its final disposition. DATES: Comments on petitions received must...

  14. Communications Satellite Receiver Systems for Public Schools: A Technical Primer.

    Science.gov (United States)

    Texas Education Agency, Austin.

    Designed to aid school districts contemplating use of some of the telecommunications services now available by satellite, this document contains information on home satellite receiving dishes (Television Receive-Only--TVROs), which can receive radio signals carrying television, sound, and data. This information includes: some factors involved in…

  15. Communications/Electronics Receiver Performance Degradation Handbook (Second Edition)

    Science.gov (United States)

    1975-08-01

    receiver to another in the Rf and IF filter characteristics modify the transfer of inter- forence power through the receiver to the IF output, and so the...modulation system the transmitted and received messages arce in general different bemaus* of small inte, forence or noise perturbations. The probability of

  16. 33 CFR 17.01-10 - Authority to receive gifts.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Authority to receive gifts. 17.01... GENERAL UNITED STATES COAST GUARD GENERAL GIFT FUND General Provisions § 17.01-10 Authority to receive gifts. (a) The Commandant, United States Coast Guard, may accept, receive, hold, or administer gifts...

  17. Sideband ratio in double sideband receivers with a Michelson interferometer

    NARCIS (Netherlands)

    Romanini, M.; Baryshev, A. M.; Hesper, R.; Mena, F. P.; Wild, W.

    2007-01-01

    Terahertz heterodyne receivers typically use double sideband (DSB) mixers. The precise knowledge of the receiver sideband ratio (SBR) is a fundamental requirement for the calibration of the data taken with this type of receivers. At the moment the spectroscopic techniques developed for submillimeter

  18. Report explores Congress' science policy

    Science.gov (United States)

    Jones, Richard

    Scientists interested in understanding how Congress develops science policy would find it useful to read a recent report by the Carnegie Commission on Science, Technology, and Government. “Science, Technology and Congress: Analysis and Advice from the Congressional Support Agencies” contains revealing insights about the often hard-pressed system that Congress uses to analyze science and technology issues.“Congress is on the front line of many battles over the directions of science and technology,” says the 70-page report. “The quality of congressional decisions on these issues often depends on the quality and usefulness of information and analysis made available to Congress.” The report describes the overwhelming amount of information received by members of Congress, few of whom have “substantial training or experience” in science and technology. Making this information understandable and useful is the role of the Office of Technology Assessment, the Congressional Research Service, the General Accounting Office, and the Congressional Budget Office.

  19. Science, Society, and Social Networking

    Science.gov (United States)

    White, K. S.; Lohwater, T.

    2009-12-01

    The increased use of social networking is changing the way that scientific societies interact with their members and others. The American Association for the Advancement of Science (AAAS) uses a variety of online networks to engage its members and the broader scientific community. AAAS members and non-members can interact with AAAS staff and each other on AAAS sites on Facebook, YouTube, and Twitter, as well as blogs and forums on the AAAS website (www.aaas.org). These tools allow scientists to more readily become engaged in policy by providing information on current science policy topics as well as methods of involvement. For example, members and the public can comment on policy-relevant stories from Science magazine’s ScienceInsider blog, download a weekly policy podcast, receive a weekly email update of policy issues affecting the scientific community, or watch a congressional hearing from their computer. AAAS resource websites and outreach programs, including Communicating Science (www.aaas.org/communicatingscience), Working with Congress (www.aaas.org/spp/cstc/) and Science Careers (http://sciencecareers.sciencemag.org) also provide tools for scientists to become more personally engaged in communicating their findings and involved in the policy process.

  20. Composing Science

    Science.gov (United States)

    Atkins, Leslie

    2015-03-01

    The course Scientific Inquiry at California State University was developed by faculty in biology, physics and English to meet ``writing proficiency'' requirements for non-science majors. Drawing from previous work in composition studies, the position that we take in this course is that we should be engaging students in writing that replicates the work that writing does in science, rather than replicating the particular structural conventions characteristic of scientific writing. That is, scientists use writing to have, remember, share, vet, challenge, and stabilize ideas, and our course requires students use writing to achieve those aims, rather than produce writing that obeys particular conventions of scientific writing. This talk will describe how we have integrated findings from composition studies with a course on scientific inquiry, and provide examples of how scientific communication has resulted from this dialogue. Funding by NSF #1140860.

  1. Computer sciences

    Science.gov (United States)

    Smith, Paul H.

    1988-01-01

    The Computer Science Program provides advanced concepts, techniques, system architectures, algorithms, and software for both space and aeronautics information sciences and computer systems. The overall goal is to provide the technical foundation within NASA for the advancement of computing technology in aerospace applications. The research program is improving the state of knowledge of fundamental aerospace computing principles and advancing computing technology in space applications such as software engineering and information extraction from data collected by scientific instruments in space. The program includes the development of special algorithms and techniques to exploit the computing power provided by high performance parallel processors and special purpose architectures. Research is being conducted in the fundamentals of data base logic and improvement techniques for producing reliable computing systems.

  2. Materials science

    International Nuclear Information System (INIS)

    Anon.

    1977-01-01

    The Materials Science Division is engaged in research on physical properties of materials and the effects of radiation upon them. This involves solid state materials undergoing phase transitions, energy storing materials, and biomaterials. The Division also offers research facilities for M.S. and Ph.D. thesis work in the fields of physics, chemistry, materials, and radiation sciences in cooperation with the various colleges and departments of the UPR Mayaguez Campus. It is anticipated that it will serve as a catalyst in starting energy-related research programs in cooperation with UPR faculty, especially programs involving solar energy. To encourage and promote cooperative efforts, contact is maintained with former graduate students and with visiting scientists from Latin American research institutions

  3. Emulating Science

    Directory of Open Access Journals (Sweden)

    Carneiro, Larissa

    2017-11-01

    Full Text Available This article compares forms of visual argumentation in the scientific study of evolution and Young-Earth Creationism, arguing that secular forms of scientific representation have affected the way creationists visually construct their own. In order to affirm their view of the origin of the universe, creationists borrow from, mimic, and ultimately emulate the techniques, or at least the appearance, of scientific method and reasoning. The use of the word “emulation” is very deliberate since their aim is to match and surpass a rival scientific paradigm – evolution. The sermon preached by the design of the Creation Museum in Petersburg, Kentucky, is not content simply to look like science, but aims to do science that is affirmed by the Scriptures.

  4. Fictitious Science

    Science.gov (United States)

    Foladori, Guillermo

    2016-01-01

    Science and Technology (S&T), like Research and Development (R&D), has become a case of capital investment like any other economic sector. This has distanced R&D from social needs, to the extent that part of R&D ends up actually being fictitious, in the sense that it acquires a price on the market but never becomes part of material…

  5. Material Science

    Energy Technology Data Exchange (ETDEWEB)

    Won, Dong Yeon; Kim, Heung

    1987-08-15

    This book introduces material science, which includes key of a high-tech industry, new materials of dream like new metal material and semiconductor, classification of materials, microstructure of materials and characteristic. It mentions magic new materials such as shape memory alloy, fine ceramics, engineering fine ceramics, electronic ceramics, engineering plastic, glass, silicone conductor, optical fiber mixed materials and integrated circuit, challenge for new material and development of new materials.

  6. Material Science

    International Nuclear Information System (INIS)

    Won, Dong Yeon; Kim, Heung

    1987-08-01

    This book introduces material science, which includes key of a high-tech industry, new materials of dream like new metal material and semiconductor, classification of materials, microstructure of materials and characteristic. It mentions magic new materials such as shape memory alloy, fine ceramics, engineering fine ceramics, electronic ceramics, engineering plastic, glass, silicone conductor, optical fiber mixed materials and integrated circuit, challenge for new material and development of new materials.

  7. Mechanical science

    CERN Document Server

    Bolton, W C

    2013-01-01

    This book gives comprehensive coverage of mechanical science for HNC/HND students taking mechanical engineering courses, including all topics likely to be covered in both years of such courses, as well as for first year undergraduate courses in mechanical engineering. It features 500 problems with answers and 200 worked examples. The third edition includes a new section on power transmission and an appendix on mathematics to help students with the basic notation of calculus and solution of differential equations.

  8. Health Sciences

    OpenAIRE

    McEntyre, Johanna; Swan, Alma; Meier zu Verl, Christian; Horstmann, Wolfram

    2011-01-01

    This chapter provides an overview of research data management in the health sciences, primarily focused upon the sort of data curated by the European Bioinformatics Institute and similar organisations. In this field, data management is well-advanced, with a sophisticated infrastructure created and maintained by the community for the benefit of all. These advances have been brought about because the field has been data-intense for many years and has been driven by the challenges biology fac...

  9. Preservice Science Teachers' Science Teaching Orientations and Beliefs about Science

    Science.gov (United States)

    Kind, Vanessa

    2016-01-01

    This paper offers clarification of science teacher orientations as a potential component of pedagogical content knowledge. Science teaching orientations and beliefs about science held by 237 preservice science teachers were gathered via content-specific vignettes and questionnaire, respectively, prior to participation in a UK-based teacher…

  10. 77 FR 53236 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

    Science.gov (United States)

    2012-08-31

    ... protection. The regulations establish such a permit system to designate Antarctic Specially Protected Areas... facilities that may be present, verify that the reasons for special protection remain valid, verify that the... NATIONAL SCIENCE FOUNDATION Notice of Permit Applications Received Under the Antarctic...

  11. Specialized science.

    Science.gov (United States)

    Casadevall, Arturo; Fang, Ferric C

    2014-04-01

    As the body of scientific knowledge in a discipline increases, there is pressure for specialization. Fields spawn subfields that then become entities in themselves that promote further specialization. The process by which scientists join specialized groups has remarkable similarities to the guild system of the middle ages. The advantages of specialization of science include efficiency, the establishment of normative standards, and the potential for greater rigor in experimental research. However, specialization also carries risks of monopoly, monotony, and isolation. The current tendency to judge scientific work by the impact factor of the journal in which it is published may have roots in overspecialization, as scientists are less able to critically evaluate work outside their field than before. Scientists in particular define themselves through group identity and adopt practices that conform to the expectations and dynamics of such groups. As part of our continuing analysis of issues confronting contemporary science, we analyze the emergence and consequences of specialization in science, with a particular emphasis on microbiology, a field highly vulnerable to balkanization along microbial phylogenetic boundaries, and suggest that specialization carries significant costs. We propose measures to mitigate the detrimental effects of scientific specialism.

  12. Communicating Science

    Science.gov (United States)

    Holland, G. J.; McCaffrey, M. S.; Kiehl, J. T.; Schmidt, C.

    2010-12-01

    We are in an era of rapidly changing communication media, which is driving a major evolution in the modes of communicating science. In the past, a mainstay of scientific communication in popular media was through science “translators”; science journalists and presenters. These have now nearly disappeared and are being replaced by widespread dissemination through, e.g., the internet, blogs, YouTube and journalists who often have little scientific background and sharp deadlines. Thus, scientists are required to assume increasing responsibility for translating their scientific findings and calibrating their communications to non-technical audiences, a task for which they are often ill prepared, especially when it comes to controversial societal issues such as tobacco, evolution, and most recently climate change (Oreskes and Conway 2010). Such issues have been politicized and hi-jacked by ideological belief systems to such an extent that constructive dialogue is often impossible. Many scientists are excellent communicators, to their peers. But this requires careful attention to detail and logical explanation, open acknowledgement of uncertainties, and dispassionate delivery. These qualities become liabilities when communicating to a non-scientific audience where entertainment, attention grabbing, 15 second sound bites, and self assuredness reign (e.g. Olson 2009). Here we report on a program initiated by NCAR and UCAR to develop new approaches to science communication and to equip present and future scientists with the requisite skills. If we start from a sound scientific finding with general scientific consensus, such as the warming of the planet by greenhouse gases, then the primary emphasis moves from the “science” to the “art” of communication. The art cannot have free reign, however, as there remains a strong requirement for objectivity, honesty, consistency, and above all a resistance to advocating particular policy positions. Targeting audience

  13. Materials Science

    Science.gov (United States)

    2003-01-01

    The Materials Science Program is structured so that NASA s headquarters is responsible for the program content and selection, through the Enterprise Scientist, and MSFC provides for implementation of ground and flight programs with a Discipline Scientist and Discipline Manager. The Discipline Working Group of eminent scientists from outside of NASA acts in an advisory capacity and writes the Discipline Document from which the NRA content is derived. The program is reviewed approximately every three years by groups such as the Committee on Microgravity Research, the National Materials Advisory Board, and the OBPR Maximization and Prioritization (ReMaP) Task Force. The flight program has had as many as twenty-six principal investigators (PIs) in flight or flight definition stage, with the numbers of PIs in the future dependent on the results of the ReMaP Task Force and internal reviews. Each project has a NASA-appointed Project Scientist, considered a half-time job, who assists the PI in understanding and preparing for internal reviews such as the Science Concept Review and Requirements Definition Review. The Project Scientist also insures that the PI gets the maximum science support from MSFC, represents the PI to the MSFC community, and collaborates with the Project Manager to insure the project is well-supported and remains vital. Currently available flight equipment includes the Materials Science Research Rack (MSRR-1) and Microgravity Science Glovebox. Ground based projects fall into one or more of several categories. Intellectual Underpinning of Flight Program projects include theoretical studies backed by modeling and computer simulations; bring to maturity new research, often by young researchers, and may include preliminary short duration low gravity experiments in the KC-135 aircraft or drop tube; enable characterization of data sets from previous flights; and provide thermophysical property determinations to aid PIs. Radiation Shielding and preliminary In

  14. African Crop Science Journal

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL ... The African Crop Science Journal, a quarterly publication, publishes original ... interactions, information science, environmental science and soil science.

  15. Life sciences and environmental sciences

    Energy Technology Data Exchange (ETDEWEB)

    1992-02-01

    The DOE laboratories play a unique role in bringing multidisciplinary talents -- in biology, physics, chemistry, computer sciences, and engineering -- to bear on major problems in the life and environmental sciences. Specifically, the laboratories utilize these talents to fulfill OHER's mission of exploring and mitigating the health and environmental effects of energy use, and of developing health and medical applications of nuclear energy-related phenomena. At Lawrence Berkeley Laboratory (LBL) support of this mission is evident across the spectrum of OHER-sponsored research, especially in the broad areas of genomics, structural biology, basic cell and molecular biology, carcinogenesis, energy and environment, applications to biotechnology, and molecular, nuclear and radiation medicine. These research areas are briefly described.

  16. Life sciences and environmental sciences

    Energy Technology Data Exchange (ETDEWEB)

    1992-02-01

    The DOE laboratories play a unique role in bringing multidisciplinary talents -- in biology, physics, chemistry, computer sciences, and engineering -- to bear on major problems in the life and environmental sciences. Specifically, the laboratories utilize these talents to fulfill OHER`s mission of exploring and mitigating the health and environmental effects of energy use, and of developing health and medical applications of nuclear energy-related phenomena. At Lawrence Berkeley Laboratory (LBL) support of this mission is evident across the spectrum of OHER-sponsored research, especially in the broad areas of genomics, structural biology, basic cell and molecular biology, carcinogenesis, energy and environment, applications to biotechnology, and molecular, nuclear and radiation medicine. These research areas are briefly described.

  17. Likelihood of women vs. men to receive bachelor's degrees in physics at Stanford, 1900-1929.

    Science.gov (United States)

    Nero, Anthony

    2005-04-01

    Work by K. Tolley indicates that girls in mid to late 19th century U.S. high schools were more likely to study mathematics and natural philosophy (i.e., physics and astronomy) than were boys (who pursued the classics).* She also found that after the turn of the century women were more likely than men to receive bachelor's degrees in math and biological sciences at Stanford, but her sampling of every fifth year yielded too few data to be conclusive about physics. Reexamination of graduation lists at Stanford, yielding data for each year from 1900 to 1929, shows that, while absolute numbers were small, women were as likely as men to receive bachelor's degrees in physics during the first decade of the century, in the second decade they were notably more likely, and in the third their likelihood decreased substantially, while that of men rose to exceed that of women. (Women were much more likely to receive bachelor's degrees in math, exceeding the likelihood for men by an order of magnitude during the second and third decades.) *K. Tolley, The Science Education of American Girls: A Historical Perspective (Routledge, N.Y.), 2003.

  18. National Science Bowl | NREL

    Science.gov (United States)

    Science Bowl National Science Bowl The Department of Energy's Office of Science sponsors the National Science Bowl competition. This fun, fast-paced academic tournament tests the brainpower of middle and high school student teams on science and math topics. The National Science Bowl provides an

  19. National Science Teachers Association

    Science.gov (United States)

    ; Resources Books, Articles, and More NSTA Press® NSTA Journals Science and Children Science Scope The Science Teacher Journal of College Science Teaching Connected Science Learning NSTA Learning Center Online Resources: Calendar, Freebies ... e-Newsletters NSTA Science Store New Releases Bestsellers Award Winners

  20. Do Gender-Science Stereotypes Predict Science Identification and Science Career Aspirations among Undergraduate Science Majors?

    Science.gov (United States)

    Cundiff, Jessica L.; Vescio, Theresa K.; Loken, Eric; Lo, Lawrence

    2013-01-01

    The present research examined whether gender-science stereotypes were associated with science identification and, in turn, science career aspirations among women and men undergraduate science majors. More than 1,700 students enrolled in introductory science courses completed measures of gender-science stereotypes (implicit associations and…