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Sample records for author highfield roger

  1. Carl Rogers: Body-Centered Counselor.

    Science.gov (United States)

    Fernald, Peter S.

    2000-01-01

    C. R. Rogers' approach is examined in the context of person-centered theories of personality and counseling. Identifies similarities between Rogers' thinking and W. Reich's theories in body-oriented psychotherapy. Discusses film-recorded interview conducted by Rogers, which demonstrates his body-centered approach. (Author/JDM)

  2. Graduate Education in Psychology: A Comment on Rogers' Passionate Statement

    Science.gov (United States)

    Brown, Robert C., Jr.; Tedeschi, James T.

    1972-01-01

    Authors' hope that this critical evaluation can place Carl Rogers' assumptions into perspective; they propose a compromise program meant to satisfy the basic aims of a humanistic psychology program. For Rogers' rejoinder see AA 512 869. (MB)

  3. Carl R. Rogers (1902-1987): Friend, Gentleman, and Scholar.

    Science.gov (United States)

    Van Hesteren, Frank

    1988-01-01

    Writes in memory of Carl R. Rogers. Conveys a sense of the spirit of Rogers' thinking and the kind of person he was, both in his own eyes and in the experience of those who knew him personally. Concludes with a discussion of how Rogers'"way of being" has influenced the writer's own personal and professional development. (Author/KS)

  4. Carl Rogers during Initial Interviews: A Moderate and Consistent Therapist.

    Science.gov (United States)

    Edwards, H. P.; And Others

    1982-01-01

    Analyzed two initial interviews by Carl Rogers in their entirety using the Carkhuff scales, Hill's category system, and a brief grammatical analysis to establish the level and consistency with which Rogers provides facilitative conditions. Results indicated his behavior as counselor was stable and consistent within and across interviews. (Author)

  5. Departure Roger Anthoine

    CERN Multimedia

    Schopper,H

    1986-01-01

    Remerciements et discours du D.G. H.Schopper à l'occasion du départ de Roger Anthoine (attaché de presse), qui travaillait dans la communication et quitte le Cern après 27 ans de service. Il gardait des relations avec des médias internationaux et la presse locale; remise des cadeaux: album photo avec images des musés de Genève et un radio aviation; R.A. fait un résumé de ses activités et souvenirs et remercie ses collaborateurs

  6. The Buber-Rogers Dialogue: Theory Confirmed in Experience

    Science.gov (United States)

    Seckinger, Donald S.

    1976-01-01

    Considers a dialogue between Carl Rogers and Martin Buber and its use both in distinguishing the concept teaching from the concept therapy as a general case and specifically in differentiating existential psychotherapy from Buber's theory of instruction. (Author/RK)

  7. A Dialogue with Carl Rogers: Cross-Cultural Challenges of Facilitating Person-Centered Groups in Africa.

    Science.gov (United States)

    Hain-Hill, Alicia; Rogers, Carl R.

    1988-01-01

    Presents brainstorming dialogue with Carl Rogers which was held in January of 1987, shortly before Rogers's death. Explores basic challenges involved in a large-scale, cross-cultural application of person-centered group work in South Africa. (Author)

  8. Repurposing Principles and Successful Pedagogical Techniques from Mister Rogers' Neighborhood for the Early Childhood Music Classroom

    Science.gov (United States)

    Poole, Harrison Grant

    2018-01-01

    Fred Rogers's television program, "Mister Rogers' Neighborhood", connected with young children and educated them about difficult concepts for more than 30 years. The author analyzes and discusses several principles and pedagogical techniques that were used in Rogers's television program, including communicating with children,…

  9. High-field superferric MR magnet

    International Nuclear Information System (INIS)

    Huson, F.R.; Carcagno, R.; Colvin, J.

    1987-01-01

    Current large-bore (>20 cm), high-field (2-T) MR magnets have major implementation disadvantages, mostly related to the extensive stray field of traditional air-core superconducting magnets. To circumvent this problem, the authors designed, constructed, and tested a 30-cm prototype superconducting, self-shielded, high field magnet. This unshimmed superferric magnet can operate between 0.5 and 4 T with a field quality of about one part per million over one quarter of its aperture. The magnet can be ramped from one field strength to another in approximately 10 minutes. The 5-Gauss line extends less than 1 meter outside the magnet structure. Further details, including MR measurements and images, are demonstrated, as well as 1-meter bore scale-up projections

  10. Roger Anthoine (1925-2015)

    CERN Multimedia

    2015-01-01

    CERN was saddened to learn of the passing of Roger Anthoine on 26 October. Roger was the first person in charge of CERN’s public relations activities, including VIP visits and the Press Office. He launched the CERN Courier and the CERN Bulletin, and even invented the role of CERN official guide.   One of CERN’s earliest staff members, Roger first established the CERN Courier as CERN’s in-house magazine, and then, when the Courier became the de-facto international journal of high-energy physics, he established the Bulletin. It is a tribute to him that both of these publications remain central to life at CERN today. But it is not only in publications that Roger left his mark. As head of the public information office almost from the start, he established the spirit of openness and transparency that still guides CERN’s public communications to this day. The Director-General has sent letters of condolence to his family. You can read mo...

  11. Malcolm Knowles and Carl Rogers.

    Science.gov (United States)

    Boyer, Dennis L.

    1984-01-01

    The aim of this paper is to examine primary concerns related to the introduction of Knowles's and Rogers's theories of adult education. Comparison of andragogy and student-centered theories includes the following areas: overview, foundations, general goals, learning principles, and teaching and learning and is followed by a summary and…

  12. Denigrating Carl Rogers: William Coulson's Last Crusade.

    Science.gov (United States)

    Kirschenbaum, Howard

    1991-01-01

    Reviews William Coulson's assertions that Carl Rogers, Abraham Maslow, and he initiated the humanistic education field, that Rogers repudiated his philosophy late in life, and that they owe the nation's parents an apology. Argues that these charges are groundless and provides examples and quotations from Rogers' later writings to show how Rogers…

  13. What Are They Doing to Carl Rogers?

    Science.gov (United States)

    Mader, Diane C.

    1980-01-01

    Notes that recent composition textbooks have classified Carl Rogers' work as a new rhetoric or as an alternative to classical argument. Demonstrates that to portray Rogers' method as a form of argument is to misunderstand his intent and that, while Rogers and Aristotle are similar superficially, their differences are profound. (FL)

  14. Carl Rogers and Me: Revisiting Teaching.

    Science.gov (United States)

    Li, Li-Te

    2003-01-01

    Discusses connections between Carl Rogers and literacy by introducing Rogers' major contributions and by discussing the implementation of his ideas in an English as a Foreign Language (EFL) classroom in Taiwan. Explains Rogers' ideas about teachers as facilitators; learner-centered learning; and building freedom. Concludes that person-centered…

  15. The Roosevelt years: crucial milieu for Carl Rogers' innovation.

    Science.gov (United States)

    Barrett-Lennard, Godfrey T

    2012-02-01

    This study explores broad features of political culture and event of the 1930s and World War 2 years, viewed in relation to the emergence and rapid early growth of the new therapy of Carl Rogers. The paper traces Rogers' early professional life and examines distinctive emphases in sociopolitical thought and development during Franklin D. Roosevelt's leadership as President over the prolonged emergency of the Great Depression and the crisis of the War. The study includes a focus on the President's own outlook and style, pertinent New Deal innovations, and wartime needs. Twelve features of this larger context are discriminated as together having vital importance for the new therapy and its founder. The congruent courses of the macrocontext and of Rogers' innovation are followed to the ending of Roosevelt's life. Direct causation is not attributed, but the evidence adduced newly points to particular contours of a larger environment favorable for the expression of Rogers' values and rare ability. In sum, the author concludes that a synergy of highly conducive historical circumstance and individual exceptionality contributed to the philosophical underpinnings, attitudinal values and early momentum of Rogers' client-centered therapy.

  16. Classical person-centered and experiential perspectives on Rogers (1957).

    Science.gov (United States)

    Elliott, Robert; Friere, Elizabeth

    2007-09-01

    Rogers (1957; see record 2007-14639-002) foreshadows the later development of the person-centered approach in North America and elsewhere. In this paper, the authors present contrasting perspectives on the legacy of this key paper. First, from the perspective of classical person-centered therapy, Freire describes the context for this key paper within the wider frame of Rogers' body of work and emphasizes its continuing importance and relevance. Second, Elliott offers a personal history from the point of view of a psychotherapy researcher and process-experiential therapist. These two perspectives represent two major and distinct views of Rogers' legacy from within his direct intellectual and therapeutic descendents. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  17. Erickson and Rogers: The Differences Do Make a Difference.

    Science.gov (United States)

    Lopez, Frederick G.

    1987-01-01

    Extends an earlier discussion by Gunnison (1985) of the similarities between Milton Erickson and Carl Rogers by citing several important differences in their respective counseling approaches. Briefly discusses implications of these differences to the continuing evolution of counseling theory and practice. (Author)

  18. Grains of Truth: A Rumination and Poem for Roger Simon

    Science.gov (United States)

    Leggo, Carl

    2014-01-01

    In this article, the author, a professor, muses over his educational life and the troublesome times he faced. He remarks that he was glad to have had wise voices who could call him to other possibilities, visions, and stories. Roger Simon was one of the most important wise voices he heard, and this sustained the spirit of his work. While many…

  19. LLNL high-field coil program

    International Nuclear Information System (INIS)

    Miller, J.R.

    1986-01-01

    An overview is presented of the LLNL High-Field Superconducting Magnet Development Program wherein the technology is being developed for producing fields in the range of 15 T and higher for both mirror and tokamak applications. Applications requiring less field will also benefit from this program. In addition, recent results on the thermomechanical performance of cable-in-conduit conductor systems are presented and their importance to high-field coil design discussed

  20. Roger Robinson, The Butterfly Hotel

    OpenAIRE

    Doumerc, Eric

    2015-01-01

    Roger Robinson is a Trinidadian poet and performer who has been based in London for a number of years now. He has had poems published in important anthologies like The Fire People (Edinburgh: Payback Press, 1998), edited by Lemm Sissay, IC3: The Penguin Book of New Black Writing in Britain, edited by Courttia Newland and Kadija Sesay (London: Penguin, 2000), and more recently Out of Bounds – British Black and Asian Poets, edited by Jackie Kay, James Procter and Gemma Robinson (Newcastle upon ...

  1. Social Interest and the Core Conditions: Could It Be that Adler Influenced Rogers?

    Science.gov (United States)

    Watts, Richard E.

    1996-01-01

    Presents primary source documentation highlighting the similarities between Alfred Adler's social interest construct and the counselor-oriented core conditions of Carl Rogers. Implications of the similarities are discussed. (Author)

  2. Roger Calder (1934 – 2014)

    CERN Multimedia

    2014-01-01

    Roger joined CERN’s Accelerator-Research Division in May 1963, at the beginning of the Intersecting Storage Rings (ISR) project. The challenge was to evacuate the two beam pipes of about 1 km each to 10-7 Pa and to obtain a beam lifetime of 20 hours. An ultra-high vacuum system of this size and complexity required the most advanced technologies available.   Among the outstanding contributions by Roger were: the choice of turbomolecular- and ion-pumps, low outgassing rates and an all-metal system bakeable to 300°C. Still today, Roger’s name is linked to "900°C vacuum degassed stainless steel" for very low hydrogen outgassing. The unexpected dynamic pressure run-away during the ISR start-up, at only a few A of beam, was quickly identified as the "ion-induced pressure bump instability". Among Roger’s efforts to mitigate this effect, the pumping system was supplemented with titanium sublimation pumps. In a second s...

  3. Carl Rogers: Reflections on His Life.

    Science.gov (United States)

    Heppner, P. Paul; And Others

    1984-01-01

    Interviewed Carl Rogers, a prominent psychologist, about aspects of his personal life, professional contributions, significant others, and psychology in general. Includes excerpts from several letters from individuals who have known Rogers and who were asked to comment on their experiences with him. (LLL)

  4. Pelvic endometriosis: a comparison between low-field (0.2 T) and high-field (1.5 T) magnetic resonance imaging

    International Nuclear Information System (INIS)

    Minaif, Karine; Ajzen, Sergio; Shigueoka, David Carlos; Minami, Cintia Cristina Satie; Sales, Danilo Moulin; Szejnfeld, Jacob; Ruano, Jose Maria Cordeiro; Noguti, Alberto Sinhiti

    2008-01-01

    Objective: to compare low-field (0.2 T) with high-field (1.5 T) magnetic resonance imaging in the assessment of pelvic endometriosis and adenomyosis. Materials and methods: twenty-seven female patients with clinically suspected endometriosis were prospectively evaluated by means of high-field and low-field magnetic resonance imaging. The reading of the images was performed by a single radiologist, initiating by the low-field, followed by the high-field images. High-field magnetic resonance imaging was utilized as the golden-standard. Results: among the 27 patients included in the present study, 18 (66.7%) had some type of lesion suggesting the presence of endometriosis demonstrated at high-field images. In 14 of these patients the diagnosis was correctly established by low-field magnetic resonance imaging. Endometriomas, tubal lesions, and endometriotic foci > 7 mm identified at the high-field images were also identified at low-field images with 100% accuracy, sensitivity and specificity. Among the nine patients diagnosed with adenomyosis by high-field images, eight were correctly diagnosed by low-field images with 88.9% accuracy, specificity and sensitivity. Conclusion: low-field magnetic resonance imaging demonstrated a low sensitivity in the detection of small endometriotic foci, high sensitivity in the detection of endometriomas and large endometriotic foci, and high accuracy in the detection of adenomyosis when compared with high-field magnetic resonance imaging. (author)

  5. Pelvic endometriosis: a comparison between low-field (0.2 T) and high-field (1.5 T) magnetic resonance imaging

    Energy Technology Data Exchange (ETDEWEB)

    Minaif, Karine; Ajzen, Sergio [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. of Imaging Diagnosis]. E-mail: kminaif@uol.com.br; Shigueoka, David Carlos; Minami, Cintia Cristina Satie; Sales, Danilo Moulin; Szejnfeld, Jacob [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. of Imaging Diagnosis. Unit of Abdomen; Ruano, Jose Maria Cordeiro [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. of General Gynecology. Sector of Videlaparoscopy; Noguti, Alberto Sinhiti [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. of General Gynecology

    2008-11-15

    Objective: to compare low-field (0.2 T) with high-field (1.5 T) magnetic resonance imaging in the assessment of pelvic endometriosis and adenomyosis. Materials and methods: twenty-seven female patients with clinically suspected endometriosis were prospectively evaluated by means of high-field and low-field magnetic resonance imaging. The reading of the images was performed by a single radiologist, initiating by the low-field, followed by the high-field images. High-field magnetic resonance imaging was utilized as the golden-standard. Results: among the 27 patients included in the present study, 18 (66.7%) had some type of lesion suggesting the presence of endometriosis demonstrated at high-field images. In 14 of these patients the diagnosis was correctly established by low-field magnetic resonance imaging. Endometriomas, tubal lesions, and endometriotic foci > 7 mm identified at the high-field images were also identified at low-field images with 100% accuracy, sensitivity and specificity. Among the nine patients diagnosed with adenomyosis by high-field images, eight were correctly diagnosed by low-field images with 88.9% accuracy, specificity and sensitivity. Conclusion: low-field magnetic resonance imaging demonstrated a low sensitivity in the detection of small endometriotic foci, high sensitivity in the detection of endometriomas and large endometriotic foci, and high accuracy in the detection of adenomyosis when compared with high-field magnetic resonance imaging. (author)

  6. Rogers : Hiinat ootab suur tulevik, Venemaad lagunemine / Jim Rogers ; interv. Villu Zirnask

    Index Scriptorium Estoniae

    Rogers, Jim

    2005-01-01

    Investeerimisguru-maailmarändur Jim Rogers toorainetesse investeerimisest, Venemaa ja Hiina majanduslikust arengust, uue Euroopa aktsiaturgudest ning elustandardist, Türgi võimalikust liitumisest Euroopa Liiduga

  7. Author Details

    African Journals Online (AJOL)

    Rogers, MW. Vol 23, No 3 (2011) - Articles Comparison of clinic-based versus home-based balance and agility training for the symptoms of knee osteo-arthritis. Abstract PDF. ISSN: 2078-516X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  8. Author Details

    African Journals Online (AJOL)

    Asante, Krobea Rogers. Vol 4, No 2 (2015) - Articles Animacy in Nkami Abstract PDF. ISSN: 2026-6596. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER RESOURCES ...

  9. Author Details

    African Journals Online (AJOL)

    Rogers, C. Vol 105, No 8 (2015) - Articles An approach to acute vertigo. Abstract PDF. ISSN: 0256-95749. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

  10. Author Details

    African Journals Online (AJOL)

    Rogers, A. Vol 103, No 9 (2013) - Articles The dilemma of treating major burns in South Africa Abstract PDF. ISSN: 0256-95749. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News.

  11. Author Details

    African Journals Online (AJOL)

    Rogers, T. Vol 93, No 7 (2003) - Articles The BEST study - a prospective study to compare business class versus economy class air travel as a cause of thrombosis. Abstract PDF. ISSN: 0256-95749. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  12. Author Details

    African Journals Online (AJOL)

    Rogers, AD. Vol 98, No 9 (2008): - Articles The Quality of Operative Notes at a General Surgery Unit Abstract PDF. ISSN: 0256-95749. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  13. Author Details

    African Journals Online (AJOL)

    Rogers, M A. Vol 96 (2007) - Articles Surveys of small mammals in Tarangire National Park, Tanzania Abstract. ISSN: 1026-1613. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  14. Carl Rogers' Alternative to Traditional Rhetoric.

    Science.gov (United States)

    Hairston, Maxine C.

    Carl Rogers' approach to communication has implications for the rhetorician and the teacher of college composition. The qualities of respect, restraint, neutrality, and understanding, when applied to written and oral discourse, can provide an effective alternative to polemical argumentation. The detatchment and empathy of the Rogerian style is…

  15. Psychotherapy: The Listening Voice. Rogers and Erickson.

    Science.gov (United States)

    Leva, Richard A.

    The views of Carl Rogers and Milton H. Erickson are combined in this book on psychotherapy. The first section focuses on belief systems, views of man, new views of the unconscious, and a philosophy for change. Erickson and his relationship to myth, the nature of man and the goal of counseling, trance, and a radical view of the unconscious are…

  16. The religious dimension of Rogers's work

    NARCIS (Netherlands)

    Kalmthout, M.A. van

    1995-01-01

    Carl Rogers can be considered one of the best examples of a proponent of a universal psychopathology and psychotherapy. His concept of the universal has a wider scope when he considers the actualizing tendency, which is operative in individual persons, to be part of a universal force that is

  17. A Client-Centered Review of Rogers with Gloria

    Science.gov (United States)

    Moon, Kathryn A.

    2007-01-01

    Carl Rogers's nondirective theory and his response style with Gloria (E. L. Shostrom, 1965) are discussed in reply to S. A. Wickman and C. Campbell's (2003) "An Analysis of How Carl Rogers Enacted Client-Centered Conversation With Gloria." Client-centered studies of C. Rogers's transcripts give context for reformulating S. A. Wickman and C.…

  18. High-field dipoles for future accelerators

    International Nuclear Information System (INIS)

    Wipf, S.L.

    1984-09-01

    This report presents the concept for building superconducting accelerator dipoles with record high fields. Economic considerations favor the highest possible current density in the windings. Further discussion indicates that there is an optimal range of pinning strength for a superconducting material and that it is not likely for multifilamentary conductors to ever equal the potential performance of tape conductors. A dipole design with a tape-wound, inner high-field winding is suggested. Methods are detailed to avoid degradation caused by flux jumps and to overcome problems with the dipole ends. Concerns for force support structure and field precision are also addressed. An R and D program leading to a prototype 11-T dipole is outlined. Past and future importance of superconductivity to high-energy physics is evident from a short historical survey. Successful dipoles in the 10- to 20-T range will allow interesting options for upgrading present largest accelerators

  19. High-field electron-photon interactions

    International Nuclear Information System (INIS)

    Hartemann, F V.

    1999-01-01

    Recent advances in novel technologies (including chirped-pulse amplification, femtosecond laser systems operating in the TW-PW range, high-gradient rf photoinjectors, and synchronized relativistic electron bunches with subpicosecond durations and THz bandwidths) allow experimentalists to study the interaction of relativistic electrons with ultrahigh-intensity photon fields. Ponderomotive scattering can accelerate these electrons with extremely high gradients in a three-dimensional vacuum laser focus. The nonlinear Doppler shift induced by relativistic radiation pressure in Compton backscattering is shown to yield complex nonlinear spectra which can be modified by using temporal laser pulse shaping techniques. Colliding laser pulses, where ponderomotive acceleration and Compton backscattering are combined, could also yield extremely short wavelength photons. Finally, one expects strong radiative corrections when the Doppler-upshifted laser wavelength approaches the Compton scale. These are discussed within the context of high-field classical electrodynamics, a new discipline borne out of the aforementioned innovations

  20. What has psychotherapy inherited from Carl Rogers?

    Science.gov (United States)

    Goldfried, Marvin R

    2007-09-01

    Rogers' classic article (see record 2007-14639-002) on the necessary and sufficient conditions for therapeutic change--now 50 years old--has made an indelible impact on the field. In his brief article, Rogers broke with the past, making a compelling case for the importance of subjecting our hypotheses about how therapy works to empirical test. Moreover, his emphasis on the importance of the therapy relationship is now routinely accepted as necessary, even if not sufficient for change to occur. Having moved beyond Rogers' necessary and sufficient conditions, the field of therapy now recognizes that as important as the therapy relationship might be, there are certain clinical problems that require the use of specific techniques to bring about change. Still, it is currently recognized that therapist acceptance is essential, that nondirective methods can be effective in improving client motivation, and perhaps most important, that the therapist needs to work toward the development of evidence-based interventions. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  1. The Two Nursing Disciplinary Scientific Revolutions: Florence Nightingale and Martha E. Rogers.

    Science.gov (United States)

    Koffi, Kan; Fawcett, Jacqueline

    2016-07-01

    The purpose of this essay is to share Kan Koffi's ideas about scientific revolutions in the discipline of nursing. Koffi has proposed that the works of Florence Nightingale and Martha E. Rogers represent two scientific revolutions in nursing as a learned discipline. The outcome of these two scientific revolutions is a catalyst for critical disciplinary and paradigmatic debate about the universal conceptualization of nursing's distinctive professional and scientific knowledge. © The Author(s) 2016.

  2. Hamlet, iscenesættelse Roger Vontobel, Staatsschauspiel Dresden

    DEFF Research Database (Denmark)

    Kuhlmann, Annelis

    2015-01-01

    Hamlet iscenesat af Roger Vontobel, Staatsschauspiel Dresden. Gæstespil på Kronborg Slot under Hamletscenens Shakespearefestival 1.-4. august 2015......Hamlet iscenesat af Roger Vontobel, Staatsschauspiel Dresden. Gæstespil på Kronborg Slot under Hamletscenens Shakespearefestival 1.-4. august 2015...

  3. Pseudo q -Engel expansions and Rogers-Ramanujan type identities ...

    African Journals Online (AJOL)

    Abstract. Andrews, Knopfmacher and Knopfmacher have used the Schur polynomials to consider the celebrated Rogers-Ramanujan identities in the context of q-Engel expansions. We extend this view using similar polynomials, provided by Sills, in the context of Slater's list of 130 Rogers-Ramanujan type identities.

  4. Kuidas kirjutatakse ajalugu? / Roger Chartier ; interv. Marek Tamm

    Index Scriptorium Estoniae

    Chartier, Roger

    2007-01-01

    Kirjanduslikest tekstidest sotsiaalajaloo uurimisallikana, juhuse ja paratamatuse vahekorrast ajaloos ja Prantsuse revolutsiooni käsitlusest Pariisi õppe- ja teaduskeskuse Ecole des Hautes Etudes en Sciences Sociales professori R. Chartier'i teostes. Varem ilm.: Tekstid, praktikad ja lugejad : intervjuu Roger Chartier'ga // Chartier, Roger. Prantsuse revolutsiooni kultuurilised lätted. - Tallinn, 2002. - Lk. 274-290

  5. What Risk? (edited by Roger Bate)

    Science.gov (United States)

    Behrman, E. J.

    1999-07-01

    Roger Bate, Ed. Butterworth-Heinemann: Oxford, UK. 329 pp. Cloth (1997): ISBN 0-7506-3810-9. 56.95. Paper (1999): ISBN 0 7506 4228 9. 29.95. A train carrying radioactive waste had begun its trip in New York and was close to its destination in California. As it stopped, the engineer called to a bystander, "Congratulations." "What for?" said the man. "You get to die. We calculated that each person along the route would receive one-millionth of the lethal dose of radioactivity. No one has died yet and you are the millionth person." "But I have received only one-millionth of the lethal dose." "That doesn't matter, it's a question of statistics." (This story is paraphrased from Rockwell's piece in The Scientist, March 16, 1998, p 7.) What Risk? contains 15 chapters (by 19 authors) arranged in five categories: methodology, science, science policy, commentaries, and perception. It deals in different ways, broadly speaking, with the problems raised by this anecdote. It would make a splendid textbook for high-school students or college undergraduates for a course dealing with pitfalls in extrapolation, unexpected variables, the proper use of statistics, political correctness and absolute safety, evaluation of the scientific literature, and the interplay of science and politics. Each article has an extensive reference list. Among the specific risks discussed are asbestos, benzene, environmental (secondhand) tobacco smoke, dioxin, ionizing radiation, and carcinogens. Some general principles emerge. (i) Since all organisms have repair mechanisms against environmental damage, there are thresholds for all damaging agents. Therefore, extrapolation from high dose rates to very low levels does not make sense. (ii) Doses and dose rates should not be confused. (iii) There are very large species differences in response to damaging agents. (iv) Unrecognized variables lurk everywhere. (v) The costs of enforcing demonstrably false standards are huge. Here are some illustrations. Nilsson

  6. High-field EPR spectroscopy of thermal donors in silicon

    DEFF Research Database (Denmark)

    Dirksen, R.; Rasmussen, F.B.; Gregorkiewicz, T.

    1997-01-01

    Thermal donors generated in p-type boron-doped Czochralski-grown silicon by a 450 degrees C heat treatment have been studied by high-field magnetic resonance spectroscopy. In the experiments conducted at a microwave frequency of 140 GHz and in a magnetic field of approximately 5 T four individual...

  7. High-field Transport in Low Symmetry β-Ga2O3 Crystal

    Science.gov (United States)

    Ghosh, Krishnendu; Singisetti, Uttam

    High-field carrier transport plays an important role in many disciplines of electronics. Conventional transport theories work well on high-symmetry materials but lacks insight as the crystal symmetry goes down. Newly emerging materials, many of which possess low symmetry, demand more rigorous treatment of charge transport. We will present a comprehensive study of high-field transport using ab initio electron-phonon interaction (EPI) elements in a full-band Monte Carlo (FBMC) algorithm. We use monoclinic β-Ga2O3 as a benchmark low-symmetry material which is also an emerging wide-bandgap semiconductor. β-Ga2O3 has a C2m space group and a 10 atom primitive cell. In this work the EPIs are calculated under density-functional perturbation theory framework. We will focus on the computational challenges arising from many phonon modes and low crystal symmetry. Significant insights will be presented on the details of energy relaxation by the hot electrons mediated by different phonon modes. We will also show the velocity-field curves of electrons in different crystal directions. The authors acknowledge the support from the National Science Foundation Grant (ECCS 1607833). The authors also acknowledge the computing support provided by the Center for Computational Research at the University at Buffalo.

  8. Research Ship Roger Revelle Underway Meteorological Data, Quality Controlled

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Research Ship Roger Revelle Underway Meteorological Data (delayed ~10 days for quality control) are from the Shipboard Automated Meteorological and Oceanographic...

  9. Encountering Carl Rogers: His Views on Facilitating Groups.

    Science.gov (United States)

    Landreth, Garry L.

    1984-01-01

    Presents Carl Rogers' views on facilitating groups, as expressed in a telephone dialogue seminar with graduate students in counselor education at North Texas State University. Discusses extended group marathons, cocounseling, nonverbal group exercises and the future of group work. (JAC)

  10. Elton Mayo and Carl Rogers: A Tale of Two Techniques.

    Science.gov (United States)

    Mahoney, Kevin T.; Baker, David B.

    2002-01-01

    Compares the simultaneous emergence of Mayo's nonauthoritarian interviewing approach and Rogers' nondirective counseling approach. Examines the influence of Piaget on Mayo and reviews the Hawthorne studies. Concludes that differences in the approaches outweigh similarities. (Contains 21 references.) (SK)

  11. Roger Mitchell : Maailma päästmine pole vaid teadlaste asi / Roger Mitchell ; interv. Silvia Lotman

    Index Scriptorium Estoniae

    Mitchell, Roger

    2006-01-01

    Earthwatch Instituut on ülemaailmne organisatsioon, mille missiooniks on kaasata vabatahtlikke ja teadlasi, levitamaks säästva arengu sõnumit. Instituuti tutvustab teaduse ja hariduse osakonna direktor Roger Mitchell

  12. High-field magnetization of dilute rare earths in yttrium

    DEFF Research Database (Denmark)

    Touborg, P.; Høg, J.; Cock, G. J.

    1974-01-01

    Magnetization measurements have been performed on single crystals of Y containing small amounts of Tb, Dy, or Er at 4.2 K in fields up to 295 × 105 A/m (370 kOe). Crystal-field and molecular-field parameters obtained from measurements of the initial susceptibility versus temperature give a satisf...... a satisfactory quantitative account of the high-field magnetization. This includes characteristic features due to the crossing and mixing of crystal-field levels....

  13. High-field spin dynamics of antiferromagnetic quantum spin chains

    DEFF Research Database (Denmark)

    Enderle, M.; Regnault, L.P.; Broholm, C.

    2000-01-01

    present recent work on the high-field spin dynamics of the S = I antiferromagnetic Heisenberg chains NENP (Haldane ground state) and CsNiCl3 (quasi-1D HAF close to the quantum critical point), the uniform S = 1/2 chain CTS, and the spin-Peierls system CuGeO3. (C) 2000 Elsevier Science B,V. All rights...

  14. High-field asymmetric waveform ion mobility spectrometry for mass spectrometry-based proteomics.

    Science.gov (United States)

    Swearingen, Kristian E; Moritz, Robert L

    2012-10-01

    High-field asymmetric waveform ion mobility spectrometry (FAIMS) is an atmospheric pressure ion mobility technique that separates gas-phase ions by their behavior in strong and weak electric fields. FAIMS is easily interfaced with electrospray ionization and has been implemented as an additional separation mode between liquid chromatography (LC) and mass spectrometry (MS) in proteomic studies. FAIMS separation is orthogonal to both LC and MS and is used as a means of on-line fractionation to improve the detection of peptides in complex samples. FAIMS improves dynamic range and concomitantly the detection limits of ions by filtering out chemical noise. FAIMS can also be used to remove interfering ion species and to select peptide charge states optimal for identification by tandem MS. Here, the authors review recent developments in LC-FAIMS-MS and its application to MS-based proteomics.

  15. The Uniqueness of Similarities: Parallels of Milton H. Erickson and Carl Rogers.

    Science.gov (United States)

    Gunnison, Hugh

    1985-01-01

    Describes the influence of the philosophy and values of Carl Rogers and Milton Erickson on the counseling profession. Reviews the person-centered approach, direction, therapeutic climate, and the influence of early experiences. Includes a reaction by Carl Rogers. (JAC)

  16. High-field susceptibility in ferromagnetic NpOs2

    International Nuclear Information System (INIS)

    Dunlap, B.D.; Aldred, A.T.; Lam, D.J.; Davidson, G.R.

    1975-01-01

    NpOs 2 is known to be a ferromagnet with a Curie temperature of 7.5 0 K. Previous bulk magnetization measurements indicated a field-induced magnetization even well below the transition temperature. By a measurement of the local high-field susceptibility, using the Moessbauer effect in 237 Np, a susceptibility of (1.2 +- 0.2) x 10 -2 emu/mole at 1.6 0 K is obtained, in general agreement with the bulk measurement. Such a large susceptibility is best understood by a model f itinerant magnetism, although other properties of the material indicate localized behavior

  17. Over grafting donor site | Rogers | East and Central African Journal ...

    African Journals Online (AJOL)

    East and Central African Journal of Surgery. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 14, No 2 (2009) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. Over grafting donor site. AD Rogers, AK ...

  18. A call for Return to Rogers' Innovation Diffusion Theory ...

    African Journals Online (AJOL)

    On organizational characteristics, it is postulated that each of organizational readiness for change, culture, size and leader's change management style is positively related to the adoption of innovations. Gaps in the studies reviewed are highlighted. Keywords: Innovation Diffusion Theory; Everett Rogers; Adoption.

  19. Singular values of the Rogers-Ramanujan continued fraction

    NARCIS (Netherlands)

    Gee, A.C.P.; Honsbeek, M

    1999-01-01

    Let $z\\in\\C$ be imaginary quadratic in the upper half plane.Then the Rogers-Ramanujan continued fraction evaluated at $q=e^{2\\pi i z}$ is contained in a class field of $\\Q(z)$. Ramanujan showed that for certain values of $z$, one can write these continued fractions as nested radicals. We use the

  20. Remembering Roger I. Simon: A Pedagogy of Public Possibility

    Science.gov (United States)

    Farley, Lisa; Tarc, Aparna Mishra

    2014-01-01

    This special issue of "Canadian Social Studies" is dedicated to Roger I. Simon. Simon's scholarship bequeaths to theorists, teachers, and curators across Canada and beyond a theory of education that opens up responsibilities to past and present others. The papers gathered for this special issue address many of the difficulties that he…

  1. An Analysis of How Carl Rogers Enacted Client-Centered Conversation with Gloria.

    Science.gov (United States)

    Wickman, Scott A.; Campbell, Cynthia

    2003-01-01

    This study analyzed Carl Rogers's session with Gloria in "Three Approaches to Psychotherapy" to determine how Rogers's conversational style functioned to enact his core conditions of empathy, genuineness, and unconditional positive regard. Rogers's conversational style was found to be congruent with his espoused theory as well as a…

  2. The Development and Evolution of Person-Centered Expressive Art Therapy: A Conversation with Natalie Rogers

    Science.gov (United States)

    Sommers-Flanagan, John

    2007-01-01

    Many counselors are unaware that Natalie Rogers, daughter of Carl Rogers, has extended her father's work into the creative and expressive arts. This article includes a verbatim conversation with Natalie Rogers as she reflects on her childhood and her professional work. Person-centered expressive art therapy is an alternative to traditional verbal…

  3. Tutorial Facilitation in the Humanities Based on the Tenets of Carl Rogers

    Science.gov (United States)

    Heim, Caroline

    2012-01-01

    This article introduces a model for group facilitation in the humanities based on Carl Rogers' model for group psychotherapy. Certain aspects of Carl Rogers' reflective learning strategies are reappraised and principles, specific only to psychotherapy, are introduced. Five of Rogers' axioms are applied to the tutorial discussion model: a…

  4. High-field, high-density tokamak power reactor

    International Nuclear Information System (INIS)

    Cohn, D.R.; Cook, D.L.; Hay, R.D.; Kaplan, D.; Kreischer, K.; Lidskii, L.M.; Stephany, W.; Williams, J.E.C.; Jassby, D.L.; Okabayashi, M.

    1977-11-01

    A conceptual design of a compact (R 0 = 6.0 m) high power density (average P/sub f/ = 7.7 MW/m 3 ) tokamak demonstration power reactor has been developed. High magnetic field (B/sub t/ = 7.4 T) and moderate elongation (b/a = 1.6) permit operation at the high density (n(0) approximately 5 x 10 14 cm -3 ) needed for ignition in a relatively small plasma, with a spatially-averaged toroidal beta of only 4%. A unique design for the Nb 3 Sn toroidal-field magnet system reduces the stress in the high-field trunk region, and allows modularization for simpler disassembly. The modest value of toroidal beta permits a simple, modularized plasma-shaping coil system, located inside the TF coil trunk. Heating of the dense central plasma is attained by the use of ripple-assisted injection of 120-keV D 0 beams. The ripple-coil system also affords dynamic control of the plasma temperature during the burn period. A FLIBE-lithium blanket is designed especially for high-power-density operation in a high-field environment, and gives an overall tritium breeding ratio of 1.05 in the slowly pumped lithium

  5. High-field proton MRS of human brain

    Energy Technology Data Exchange (ETDEWEB)

    Di Costanzo, Alfonso E-mail: alfonso.dicostanzo@unina2.it; Trojsi, F.; Tosetti, M.; Giannatempo, G.M.; Nemore, F.; Piccirillo, M.; Bonavita, S.; Tedeschi, G.; Scarabino, T

    2003-11-01

    Proton magnetic resonance spectroscopy ({sup 1}H-MRS) of the brain reveals specific biochemical information about cerebral metabolites, which may support clinical diagnoses and enhance the understanding of neurological disorders. The advantages of performing {sup 1}H-MRS at higher field strengths include better signal to noise ratio (SNR) and increased spectral, spatial and temporal resolution, allowing the acquisition of high quality, easily quantifiable spectra in acceptable imaging times. In addition to improved measurement precision of N-acetylaspartate, choline, creatine and myo-inositol, high-field systems allow the high-resolution measurement of other metabolites, such as glutamate, glutamine, {gamma}-aminobutyric acid, scyllo-inositol, aspartate, taurine, N-acetylaspartylglutamate, glucose and branched amino acids, thus extending the range of metabolic information. However, these advantages may be hampered by intrinsic field-dependent technical difficulties, such as decreased T2 signal, chemical shift dispersion errors, J-modulation anomalies, increased magnetic susceptibility, eddy current artifacts, limitations in the design of homogeneous and sensitive radiofrequency (RF) coils, magnetic field instability and safety issues. Several studies demonstrated that these limitations could be overcome, suggesting that the appropriate optimization of high-field {sup 1}H-MRS would expand the application in the fields of clinical research and diagnostic routine.

  6. Compact high-field superconducting quadrupole magnet with holmium poles

    Energy Technology Data Exchange (ETDEWEB)

    Barlow, D.B.; Kraus, R.H. Jr.; Lobb, C.T.; Menzel, M.T. (Los Alamos National Lab., NM (United States)); Walstrom, P.L. (Grumman Space Systems, Los Alamos, NM (United States))

    1992-03-15

    A compact high-field superconducting quadrupole magnet was designed and built with poles made of the rare-earth metal holmium. The magnet is intended for use in superconducting coupled-cavity linear accelerators where compact high-field quadrupoles are needed, but where the use of permanent magnets is ruled out because of trapped-flux losses. The magnet has a clear bore diameter of 1.8 cm, outside diameter of 11 cm, length of 11 cm, and pole tip length of 6 cm. The effect of using holmium, a material with a higher saturation field than iron, was investigated by replacing poles made of iron with identical poles made of holmium. The magnet was operated at a temperature of 4.2 K and reached a peak quadrupole field gradient of 355 T/m, a 10% increase over the same magnet with iron poles. This increase in performance is consistent with calculations based on B-H curves that were measured for holmium at 4.2 K. (orig.).

  7. Arthur Roger Thatcher's contributions to longevity research: A Reflexion

    Directory of Open Access Journals (Sweden)

    Jean-Marie Robine

    2010-03-01

    Full Text Available Arthur Roger Thatcher, CB, died in London on February 13, 2010, at 83 years of age. He was actively engaged in demographic research until his death. One of his last papers, The Compression of Deaths above the Mode, is published in this volume of Demographic Research (Thatcher et al., 2010. Roger signed the copyright agreement for the paper on January 24, just a few weeks before his death. Another contribution will appear in a forthcoming monograph entitled Supercentenarians (Maier et al., 2010. In this note, we, the co-authors of his Demographic Research paper, will briefly review his remarkable research accomplishments. Roger Thatcher was born in Birmingham in 1926. He worked for 26 years as a statistician in several national government offices. Later, he served as Registrar General for England and Wales, and was Director of the Office of Population Censuses and Survey (OPCS from 1978 to 1986. A short description of his professional career up to his retirement can be found in Population Trends (1986. He had a long-standing affinity for the history of actuarial sciences and statistics in England, taking particular interest in the early years of the Statistical Society of London, and helping to compile extracts from its 1830s Proceedings (see Boreham et al., 1988 and Rosenbaum, 2001. He published a historical abstract (1970 of British labour-force statistics back to 1886. Thatcher was also a scientist with broad interests, publishing papers in a wide range of fields, such as archaeology, mathematics (number theory, and cosmology (1972, 1973 and 1982.

  8. Similarities between Prescott Lecky's theory of self-consistency and Carl Rogers' self-theory.

    Science.gov (United States)

    Merenda, Peter F

    2010-10-01

    The teachings of Prescott Lecky on the self-concept at Columbia University in the 1920s and 1930s and the posthumous publications of his book on self-consistency beginning in 1945 are compared with the many publications of Carl Rogers on the self-concept beginning in the early 1940s. Given that Rogers was a graduate student at Columbia in the 1920s and 1930s, the striking similarities between these two theorists, as well as claims attributed to Rogers by Rogers' biographers and writers who have quoted Rogers on his works relating to self-theory, strongly suggest that Rogers borrowed from Lecky without giving him the proper credit. Much of Rogers' writings on the self-concept included not only terms and concepts which were original with Lecky, but at times these were actually identical.

  9. Carl Rogers and the larger context of therapeutic thought.

    Science.gov (United States)

    Wachtel, Paul L

    2007-09-01

    Carl Rogers' classic account (see record 2007-14639-002) of the necessary and sufficient conditions for therapeutic personality change is examined in light of developments in theory and practice since the time he wrote. Rogers' ideas, which diverged from and were very largely a challenge to, the dominant psychoanalytic ideology of the era in which he wrote, are considered in relation to new theoretical developments in what has come to be called relational psychoanalysis. They are also considered in light of the greatly increased influence of and substantial evidence supporting behavioral and cognitive-behavioral approaches. Points of convergence and divergence among these approaches are examined. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  10. Byron G. Rogers Federal Building Harvests Daylight and Super Savings

    Energy Technology Data Exchange (ETDEWEB)

    None

    2017-01-01

    Case study describes how the Byron G. Rogers Federal Building replaced existing T12 and T8 luminaires with LED dedicated troffers with advanced controls. Together these measures cut lighting energy use by nearly 60% in the 18-story, 791,000-square-foot facility. The new lighting control system provides automated dimming of lights down to 0% output when daylight provides adequate light levels. The project earned GSA an award for exemplary performance from the Interior Lighting Campaign in 2016.

  11. Roger Bailey takes over as head of CAS

    CERN Multimedia

    Katarina Anthony

    2011-01-01

    Established at the beginning of 1983, the CERN Accelerator School has developed to include two courses per year offered to hundreds of students from all over the world. Following the successful management of Daniel Brandt, Roger Bailey joins the newly formed Office of the Director of Accelerators and Technology (DAT) and becomes the new Head of the CERN Accelerator School (CAS).   Roger Bailey, the new Head of the CERN Accelerator School.  After 8 years of successful growth in popularity for the School, Daniel Brandt has handed on the baton to Roger Bailey. “The success of the CERN Accelerator School has been the result of a fantastic team effort,” says Brandt. “Along with my assistant - initially Suzanne von Wartburg and then Barbara Strasser - I had help from an advisory committee to decide both on the specialist topic and the venue for each workshop, and dedicated programme committees to help find the expert lecturers for the courses. Their support has ...

  12. Motivational interviewing and the clinical science of Carl Rogers.

    Science.gov (United States)

    Miller, William R; Moyers, Theresa B

    2017-08-01

    The clinical method of motivational interviewing (MI) evolved from the person-centered approach of Carl Rogers, maintaining his pioneering commitment to the scientific study of therapeutic processes and outcomes. The development of MI pertains to all 3 of the 125th anniversary themes explored in this special issue. Applications of MI have spread far beyond clinical psychology into fields including health care, rehabilitation, public health, social work, dentistry, corrections, coaching, and education, directly impacting the lives of many people. The public relevance and impact of clinical psychology are illustrated in the similarity of MI processes and outcomes across such diverse fields and the inseparability of human services from the person who provides them, in that both relational and technical elements of MI predict client outcomes. Within the history of clinical psychology MI is a clear product of clinical science, arising from the seminal work of Carl Rogers whose own research grounded clinical practice in empirical science. As with Rogers' work 70 years ago, MI began as an inductive empirical approach, observing clinical practice to develop and test hypotheses about what actually promotes change. Research on MI bridges the current divide between evidence-based practice and the well-established importance of therapeutic relationship. Research on training and learning of MI further questions the current model of continuing professional education through self-study and workshops as a way of improving practice behavior and client outcomes. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  13. Whole-globe biomechanics using high-field MRI.

    Science.gov (United States)

    Voorhees, Andrew P; Ho, Leon C; Jan, Ning-Jiun; Tran, Huong; van der Merwe, Yolandi; Chan, Kevin; Sigal, Ian A

    2017-07-01

    The eye is a complex structure composed of several interconnected tissues acting together, across the whole globe, to resist deformation due to intraocular pressure (IOP). However, most work in the ocular biomechanics field only examines the response to IOP over smaller regions of the eye. We used high-field MRI to measure IOP induced ocular displacements and deformations over the whole globe. Seven sheep eyes were obtained from a local abattoir and imaged within 48 h using MRI at multiple levels of IOP. IOP was controlled with a gravity perfusion system and a cannula inserted into the anterior chamber. T2-weighted imaging was performed to the eyes serially at 0 mmHg, 10 mmHg, 20 mmHg and 40 mmHg of IOP using a 9.4 T MRI scanner. Manual morphometry was conducted using 3D visualization software to quantify IOP-induced effects at the globe scale (e.g. axial length and equatorial diameters) or optic nerve head scale (e.g. canal diameter, peripapillary sclera bowing). Measurement sensitivity analysis was conducted to determine measurement precision. High-field MRI revealed an outward bowing of the posterior sclera and anterior bulging of the cornea due to IOP elevation. Increments in IOP from 10 to 40 mmHg caused measurable increases in axial length in 6 of 7 eyes of 7.9 ± 5.7% (mean ± SD). Changes in equatorial diameter were minimal, 0.4 ± 1.2% between 10 and 40 mmHg, and in all cases less than the measurement sensitivity. The effects were nonlinear, with larger deformations at normal IOPs (10-20 mmHg) than at elevated IOPs (20-40 mmHg). IOP also caused measurable increases in the nasal-temporal scleral canal diameter of 13.4 ± 9.7% between 0 and 20 mmHg, but not in the superior-inferior diameter. This study demonstrates that high-field MRI can be used to visualize and measure simultaneously the effects of IOP over the whole globe, including the effects on axial length and equatorial diameter, posterior sclera displacement and bowing, and even

  14. Safety aspects in high-field magnetic resonance imaging

    International Nuclear Information System (INIS)

    Muehlenweg, M.; Trattnig, S.; Schaefers, G.

    2008-01-01

    With more and more 3 Tesla high-field magnetic resonance (MR) scanners entering clinical routine, the safety notion in MR imaging has also reached a new dimension. The first part of this paper deals with the three most important sources of physical interaction (static magnetic field, gradient and HF fields). The paper discusses the differences compared with the traditional clinical 1.5 T standard scanners, the impact on human beings, the interactions with metallic objects and the relevant safety standards. The second part of the paper examines the issue of MR safety as seen in clinical practice and tries to demonstrate optimization potentials. This includes structural optimization in information distribution and hospital organization as well as test standards and labeling guidelines. (orig.) [de

  15. Studies on the reliability of high-field intra-operative MRI in brain glioma resection

    Directory of Open Access Journals (Sweden)

    Zhi-jun SONG

    2011-07-01

    Full Text Available Objective To evaluate the reliability of high-field intra-operative magnetic resonance imaging(iMRI in detecting the residual tumors during glioma resection.Method One hundred and thirty-one cases of brain glioma(69 males and 62 females,aged from 7 to 79 years with mean of 39.6 years hospitalized from Nov.2009 to Aug.2010 were involved in present study.All the patients were evaluated using magnetic resonance imaging(MRI before the operation.The tumors were resected under conventional navigation microscope,and the high-field iMRI was used for all the patients when the operators considered the tumor was satisfactorily resected,while the residual tumor was difficult to detect under the microscope,but resected after being revealed by high-field iMRI.Histopathological examination was performed.The patients without residual tumors recieved high-field MRI scan at day 4 or 5 after operation to evaluate the accuracy of high-field iMRI during operation.Results High quality intra-operative images were obtained by using high-field iMRI.Twenty-eight cases were excluded because their residual tumors were not resected due to their location too close to functional area.Combined with the results of intra-operative histopathological examination and post-operative MRI at the early recovery stage,the sensitivity of high-field iMRI in residual tumor diagnosis was 98.0%(49/50,the specificity was 94.3%(50/53,and the accuracy was 96.1%(99/103.Conclusion High-quality intra-operative imaging could be acquired by high-field iMRI,which maybe used as a safe and reliable method in detecting the residual tumors during glioma resection.

  16. Correction of inhomogeneous RF field using multiple SPGR signals for high-field spin-echo MRI

    International Nuclear Information System (INIS)

    Ishimori, Yoshiyuki; Monma, Masahiko; Yamada, Kazuhiro; Kimura, Hirohiko; Uematsu, Hidemasa; Fujiwara, Yasuhiro; Yamaguchi, Isao

    2007-01-01

    The purpose of this study was to propose a simple and useful method for correcting nonuniformity of high-field (3 Tesla) T 1 -weighted spin-echo (SE) images based on a B1 field map estimated from gradient recalled echo (GRE) signals. The method of this study was to estimate B1 inhomogeneity, spoiled gradient recalled echo (SPGR) images were collected using a fixed repetition time of 70 ms, flip angles of 45 and 90 degrees, and echo times of 4.8 and 10.4 ms. Selection of flip angles was based on the observation that the relative intensity changes in SPGR signals were very similar among different tissues at larger flip angles than the Ernst angle. Accordingly, spatial irregularity that was observed on a signal ratio map of the SPGR images acquired with these 2 flip angles was ascribed to inhomogeneity of the B1 field. Dual echo time was used to eliminate T 2 * effects. The ratio map that was acquired was scaled to provide an intensity correction map for SE images. Both phantom and volunteer studies were performed using a 3T magnetic resonance scanner to validate the method. In the phantom study, the uniformity of the T 1 -weighted SE image improved by 23%. Images of human heads also showed practically sufficient improvement in the image uniformity. The present method improves the image uniformity of high-field T 1 -weighted SE images. (author)

  17. Empathy, genuineness--And the dynamics of power: A feminist responds to Rogers.

    Science.gov (United States)

    Brown, Laura S

    2007-09-01

    In this article, I discuss the points of convergence and divergence between Carl Rogers' core constructs for therapy (Rogers, 1957; see record 2007-14639-002) and the theories and practices of feminist therapy (Brown, 1994, 2007). The value of Rogers' insights about the importance of the relationship in therapy is reviewed, and the lacunae in his model arising from an inattention to issues of power and politics is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  18. Field Marks of a Celebration: Roger Tory Peterson's Centennial Birthday

    Science.gov (United States)

    Dunlap, J.; Robbins, C.S.

    2008-01-01

    A red letter day in my life was April 27, 1934, the day I first met Roger. A birding friend, Elisha Atkins, had invited Clinton Reynolds and me to dinner to meet a famous ornithologist. We would all be going on a field trip to Newburyport on the Massachusetts coast the next day. The dinner conversation revolved about a new field guide that Mr. Peterson had just completed and that would be available in a few days. I couldn?t wait to see it! I had been birding since 1930, keying out live birds with Chapman?s Handbook of Birds of Eastern North America (1912) and Hoffman?s Guide to the Birds of New England and Eastern New York (1904). Both books had extensive keys based on color, size, bill shape and season, and pictures of heads or feet of some species. Positive bird identification was a long and tedious process. The field trip the next day with Roger was memorable, not for finding any rare or unusual birds, but for learning how to identify birds to species at a single good glance. I recall asking Roger if he could find a ring-billed gull among a group of gulls resting on a roof beside the Merrimac River. He immediately said, ?No there aren?t any ring-bills there; they would be immediately apparent by their slimmer shape.? There was no need to check the foot color on each bird. While it is easy to say that Roger revolutionized field guides, I truly believe there are few people worldwide under the age of 90 who can really appreciate the difference between the old way of keying out birds and the instant recognition promoted by the Peterson system. Today we take for granted that amateurs can identify birds accurately. Monitoring bird populations by Breeding Bird Surveys, atlas studies, Breeding Bird Censuses, migration banding, and many other studies relies on it. None of these would be possible if we were still keying out live birds using books designed to identify dead birds in the hand.

  19. CARL ROGERS REFLEXIONES TEÓRICO-PRÁCTICAS

    Directory of Open Access Journals (Sweden)

    Judith Duque Camargo

    2001-01-01

    Full Text Available En este ensayo la autora reflexiona acerca de su experiencia como terapeuta centrada en la persona, la cual denomina como un «caminar de la mano» con seres humanos que se encuentran confusos. Antes de señalar los principales aspectos de su abordaje para interactuar con sus consultantes, realiza una síntesis del proceso de desarrollo de la psicoterapia de Carl Rogers y reflexiona acerca del enfoque rogeriano, en el cual predomina la relación significativa entre el terapeuta y el paciente como elemento central de cambio.

  20. ROGERS SU PENSAMIENTO PROFESIONAL Y SU FILOSOFÍA PERSONAL

    Directory of Open Access Journals (Sweden)

    Gina Pezzano de Vengoechea

    2001-01-01

    Full Text Available Carl Rogers denominó a su enfoque psicológico «Psicoterapia centrada en el cliente» y se asocia a la Psicología Humanista, que dignifica y valora el esfuerzo de la persona por desarrollar sus potencialidades. En esta ponencia se describen las ventajas y alcances de este enfoque, así como las limitaciones que muestra su empleo en medios socioeconómicos en desventaja. De igual manera, se analizan las enseñanzas más significativas de este psicoterapeuta acerca de las relaciones entre los individuos.

  1. High-field MR imaging of spinal cord multiple sclerosis

    International Nuclear Information System (INIS)

    De La Paz, R.L.; Floris, R.; Norman, D.; Enzmann, D.R.

    1987-01-01

    Fifty-one high-field MR imaging studies (1.5 T, General Electric Signa) of the spinal cord were performed in 42 patients (27 female, 15 male; mean age, 40 years) with clinically definitive (n = 34) or probable (n = 8) multiple sclerosis and suspected spinal cord lesions. MR imaging showed focal spinal cord abnormalities in 38 (75%) of 51 studies. T2-weighted images were abnormal (showing foci of high signal intensity) in 38 studies, T1-weighted images were abnormal (showing areas of low signal intensity or mass effect) in 16 (42%) of 38, and GRASS images were abnormal (showing foci of high signal intensity) in 9 (82%) of 11 cases. Brain MR imaging showed periventricular lesions typical of multiple sclerosis in 34 (81%) of 42 studies. Spinal cord studies were positive in eight cases with normal brain MR images, and brain studies were positive in 13 instances of normal spinal cord MR images. Four lesions were at the cervicomedullary junction, 44 in the cervical spinal cord, and three in the thoracic cord. Mass effect in cord lesions, simulating neoplasm, was seen in seven patients during the acute symptomatic phase. Serial studies in three patients with decreasing symptoms showed a reduction after 3-4 weeks and resolution of the mass effect after 2-6 months

  2. Reassessing Rogers' necessary and sufficient conditions of change.

    Science.gov (United States)

    Watson, Jeanne C

    2007-09-01

    This article reviews the impact of Carl Rogers' postulate about the necessary and sufficient conditions of therapeutic change on the field of psychotherapy. It is proposed that his article (see record 2007-14630-002) made an impact in two ways; first, by acting as a spur to researchers to identify the active ingredients of therapeutic change; and, second, by providing guidelines for therapeutic practice. The role of the necessary and sufficient conditions in process-experiential therapy, an emotion-focused therapy for individuals, and their limitations in terms of research and practice are discussed. It is proposed that although the conditions are necessary and important in promoting clients' affect regulation, they do not take sufficient account of other moderating variables that affect clients' response to treatment and may need to be balanced with more structured interventions. Notwithstanding, Rogers highlighted a way of interacting with clients that is generally acknowledged as essential to effective psychotherapy practice. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  3. Nutritional composition of Polyrhachis vicina Roger (Edible Chinese black ant

    Directory of Open Access Journals (Sweden)

    Yucui Ren

    2006-03-01

    Full Text Available Edible black ant (Polyrhachis vicina Roger is a traditional edible insect species in China. It has been used as a functional ingredient in various tonics or health foods. This study determined the nutritional composition of the black ant, which included minerals, amino acids, superoxide dismutase (SOD, Vitamin E, and total acid. Supercritical CO2 fluid extraction was used to extract the organic compounds. The compounds were identified and quantified by GC-MS. Results showed that the ant powder contained 77000 IU/100g of SOD, 56.6g/100g protein, 9.0g/100g fat, 13.2g/100g volatile oil, 6.0g/100g moisture, 1.6g/100g total acid and 6.3g/100g ash. There were 18 amino acids, of which, glutamic acid, glycine, aspartic acid, alanine, leucine, proline and tyrosine were predominant. Among the 16 minerals, K, Ca, P, Mg, Fe, Mn and Zn were predominant. More than 20 organic components were identified, the main ones were 9-octadecenoic acid, ethyl oleate, cholesterol and n-hexadecanoic acid. Six of the compounds found, i.e. hexadecanoic acid, ethyl ester, linoleic acid, ethyl oleate, oleic acid and cholesta-3, 5-diene, have not been reported previously. The results indicate that P. vicina Roger is rich in nutrients and is a potential ingredient for health food.

  4. 77 FR 29932 - Safety Zone; Nautical City Festival Air Show, Rogers City, MI

    Science.gov (United States)

    2012-05-21

    ...-AA00 Safety Zone; Nautical City Festival Air Show, Rogers City, MI AGENCY: Coast Guard, DHS. ACTION... City Festival will be celebrating Calcite's 100th Anniversary. As part of that celebration, an air show... posed by the Nautical City Festival air show near Rogers City, MI, the Captain of the Port Sault Sainte...

  5. 77 FR 40798 - Safety Zone; Nautical City Festival Air Show, Rogers City MI

    Science.gov (United States)

    2012-07-11

    ...-AA00 Safety Zone; Nautical City Festival Air Show, Rogers City MI AGENCY: Coast Guard, DHS. ACTION...; Nautical City Festival Air Show, Rogers City MI; in the Federal Register (77 FR 29932). We received no... Nautical City Festival will be celebrating Calcite's 100th Anniversary. As part of that celebration, an air...

  6. The Application of Carl Rogers' Person-Centered Learning Theory to Web-Based Instruction.

    Science.gov (United States)

    Miller, Christopher T.

    This paper provides a review of literature that relates research on Carl Rogers' person-centered learning theory to Web-based learning. Based on the review of the literature, a set of criteria is described that can be used to determine how closely a Web-based course matches the different components of Rogers' person-centered learning theory. Using…

  7. The Coconstruction of Congruency: Investigating the Conceptual Metaphors of Carl Rogers and Gloria.

    Science.gov (United States)

    Wickman, Scott A.; Campbell, Cynthia

    2003-01-01

    The counseling session between Carl Rogers and Gloria is one of the most widely used teaching tools in the field of counselor education. This article explores a framework for investigating conceptual metaphor, which provided a useful method for understanding how meaning negotiation took place within the session as well as how Rogers and Gloria…

  8. Advances in high-field superconducting composites by addition of artificial pinning centres to niobium-titanium

    International Nuclear Information System (INIS)

    Cooley, L.D.; Motowidlo, L.R.

    1999-01-01

    Artificial pinning-centre (APC) niobium-titanium composites attain critical current density J c values higher than 4000 A mm -2 at 5 T, 4.2 K, surpassing the barrier reached by the conventional Nb-Ti composite process. At 2 T APC composites achieve more than double the J c of conventional composites, making them particularly well suited for low-field applications. On the other hand, APC composites are inferior to conventional composites at 8 T, due to weak high-field pinning and reduced upper critical field. This review discusses fabrication techniques, microstructural development and superconducting and flux-pinning properties of APC composites. Key elements and underlying issues for achieving higher J c are identified and discussed in terms of the current state of the art. (author)

  9. Rare models: Roger Casement, the Amazon, and the ethnographic picturesque.

    Science.gov (United States)

    Wylie, Lesley

    2010-01-01

    In 1910 Roger Casement was sent by the British government to investigate the alleged humanitarian abuses of the Peruvian Amazon Company in the Putumayo, a disputed border zone in North West Amazonia. Casement brought more than verbal and written testimony back to London. On 26 June, some six months after he returned from the Amazon, Casement collected two Amerindian boys - Omarino and Ricudo - from Southampton docks. This paper will reconstruct the brief period that these young men spent in Britain in the summer of 1911 and assess, in particular, to what extent they were treated as 'exhibits' by Casement, who not only introduced them to leading members of the British establishment but also arranged for them to be painted and photographed following contemporary ethnographic conventions.

  10. Lo spett-attore: il teatro partecipato di Roger Bernat

    Directory of Open Access Journals (Sweden)

    Carmen Pedullà

    2015-06-01

    Full Text Available The company FFF (The Friendly Face of Fascism guided by the director Roger Bernat is situated in the context of contemporary participative theatre. Beginning its activity in Barcelona in 2008, the company represents the emblem of Catalan interactive theatre and allows to reconsider, through meaning and forms, the shades connected to interactive paradigm. The disappearance of professional actors in the FFF's shows introduces a new figure, the spect-actor: he has to create the show in a particular typology of theatre which is named as of efervescencia, with social and political, as well as scenic, peculiarities. This essay, without exhaustive pretension, attempts to rough out the role and the position of the spect-actor in scenic context. This element allows to lend another face to participative paradigm.

  11. Updated tokamak systems code and applications to high-field ignition devices

    International Nuclear Information System (INIS)

    Reid, R.L.; Galambos, J.D.; Peng, Y-K.M.; Strickler, D.J.; Selcow, E.C.

    1985-01-01

    This paper describes revisions made to the Tokamak Systems Code to more accurately model high-field copper ignition devices. The major areas of revision were in the plasma physics model, the toroidal field (TF) coil model, and the poloidal field (PF) coil/MHD model. Also included in this paper are results obtained from applying the revised code to a study for a high-field copper ignition device to determine the impact of magnetic field on axis, (at the major radius), on performance, and on cost

  12. A SIMPLE ANALYSIS OF THE PROPAGATING ACOUSTOELECTRIC HIGH-FIELD DOMAIN

    DEFF Research Database (Denmark)

    Mosekilde, Erik

    1968-01-01

    An analytical treatment of the uniformly propagating acoustoelectric high-field domain is presented in the limit of zero diffusion. Expressions for the electron density and the acoustic energy density as functions of the electric field are given. The domain velocity is determined. ©1968 The Ameri......An analytical treatment of the uniformly propagating acoustoelectric high-field domain is presented in the limit of zero diffusion. Expressions for the electron density and the acoustic energy density as functions of the electric field are given. The domain velocity is determined. ©1968...

  13. Awake craniotomy for gliomas in a high-field intraoperative magnetic resonance imaging suite: analysis of 42 cases.

    Science.gov (United States)

    Maldaun, Marcos V C; Khawja, Shumaila N; Levine, Nicholas B; Rao, Ganesh; Lang, Frederick F; Weinberg, Jeffrey S; Tummala, Sudhakar; Cowles, Charles E; Ferson, David; Nguyen, Anh-Thuy; Sawaya, Raymond; Suki, Dima; Prabhu, Sujit S

    2014-10-01

    The object of this study was to describe the experience of combining awake craniotomy techniques with high-field (1.5 T) intraoperative MRI (iMRI) for tumors adjacent to eloquent cortex. From a prospective database the authors obtained and evaluated the records of all patients who had undergone awake craniotomy procedures with cortical and subcortical mapping in the iMRI suite. The integration of these two modalities was assessed with respect to safety, operative times, workflow, extent of resection (EOR), and neurological outcome. Between February 2010 and December 2011, 42 awake craniotomy procedures using iMRI were performed in 41 patients for the removal of intraaxial tumors. There were 31 left-sided and 11 right-sided tumors. In half of the cases (21 [50%] of 42), the patient was kept awake for both motor and speech mapping. The mean duration of surgery overall was 7.3 hours (range 4.0-13.9 hours). The median EOR overall was 90%, and gross-total resection (EOR ≥ 95%) was achieved in 17 cases (40.5%). After viewing the first MR images after initial resection, further resection was performed in 17 cases (40.5%); the mean EOR in these cases increased from 56% to 67% after further resection. No deficits were observed preoperatively in 33 cases (78.5%), and worsening neurological deficits were noted immediately after surgery in 11 cases (26.2%). At 1 month after surgery, however, worsened neurological function was observed in only 1 case (2.3%). There was a learning curve with regard to patient positioning and setup times, although it did not adversely affect patient outcomes. Awake craniotomy can be safely performed in a high-field (1.5 T) iMRI suite to maximize tumor resection in eloquent brain areas with an acceptable morbidity profile at 1 month.

  14. A pedagogia libertaria de Carl Rogers : um estudo de suas caracteristicas

    OpenAIRE

    Carlos Alberto Jales Costa

    1980-01-01

    Resumo: A partir do levantamento dos diversos movimentos pedagogia libertária do sáculo XX, o presente trabalho tenta caracterizar a pedagogia libertária de Carl Rogers. No intuito de atingir este objetivo, intentou-se uma pesquisa bibliográfica, através da qual pudesse emergir o posicionamento libertário de Rogers em pedagogia e em educação. Para isto foram consultados os virios escritos de Rogers: livros, conferências, artigos de jornais, autobiografias, entrevistas. Em todos eles transpare...

  15. Irish nationalism and the uncanny: a reading of “The ghost of Roger Casement”

    OpenAIRE

    Bolfarine, Mariana; Universidade de São Paulo

    2015-01-01

    Of the several fictional works about the Irish revolutionary Roger David Casement, none has reached the notoriety of William Butler Yeats’s poem “The ghost of Roger Casement” (1936). Roger Casement is known for acting as British Consul in Africa and in Brazil, having reported atrocities committed against the natives in these regions by imperial rubber companies. The aftermath of having witnessed the effects of such atrocities eventually turned Casement against the British Empire for which he ...

  16. Author Details

    African Journals Online (AJOL)

    Rogers, GG. Vol 45, No 3 (1971) - Articles Walk of jog for health: I Abstract PDF · Vol 45, No 3 (1971) - Articles Walk or jog for health: II Abstract PDF · Vol 45, No 6 (1971) - Articles Physiological effects of the amphetamines during exercise. Abstract PDF. ISSN: 0256-95749. AJOL African Journals Online. HOW TO USE AJOL.

  17. Author Details

    African Journals Online (AJOL)

    Ponka, Roger. Vol 10, No 5 (2016) - Articles Evaluation nutritionnelle de quelques ingrédients entrant dans la formulation alimentaire des poules pondeuses et porcs d'une ferme d'élevage au Nord- Ouest Cameroun Abstract PDF. ISSN: 1997-342X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for ...

  18. Powder-in-Tube (PIT) Nb3Sn conductors for high-field magnets

    NARCIS (Netherlands)

    Lindenhovius, J.H.; Hornsveld, E.M.; den Ouden, A.; Wessel, Wilhelm A.J.; ten Kate, Herman H.J.

    2000-01-01

    New Nb3Sn conductors, based on the powder-in-tube (PIT) process, have been developed for application in accelerator magnets and high-field solenoids. For application in accelerator magnets, SMI has developed a binary 504 filament PIT conductor by optimizing the manufacturing process and adjustment

  19. A new hybrid protection system for high-field superconducting magnets

    NARCIS (Netherlands)

    Ravaioli, Emanuele; Datskov, V.I.; Kirby, G.; ten Kate, Herman H.J.; Verweij, A.P.

    2014-01-01

    The new generation of high-field superconducting accelerator magnets poses a challenge concerning the protection of the magnet coil in the case of a quench. The very high stored energy per unit volume requires a fast and efficient quench heating system in order to avoid damage due to overheating. A

  20. High-field 3He-F interaction at the surface of fluorocarbon spheres

    DEFF Research Database (Denmark)

    Schuhl, A.; Chapellier, M.; Rasmussen, Finn Berg

    1984-01-01

    High-field experiments on the relaxation betweenF in small Teflon spheres andHe on the surface are reported. WithHe as a monolayer, coupling times are found to be less than 5 sec, in magnetic fields up to 3 T and temperatures down to 50 mK, where electronic centers are completely polarized...

  1. High-field Faraday rotation in II-VI-based semimagnetic semiconductors

    NARCIS (Netherlands)

    Savchuk, AI; Fediv, [No Value; Nikitin, PI; Perrone, A; Tatzenko, OM; Platonov, VV

    The effects of d-d exchange interaction have been studied by measuring high-field Faraday rotation in II-VI-based semimagnetic semiconductors. For Cd1-xMnxTe crystals with x = 0.43 and at room temperature a saturation in magnetic field dependence of the Faraday rotation has been observed. In the

  2. Clinical indications for high-field 1.5 T intraoperative magnetic resonance imaging and neuro-navigation for neurosurgical procedures. Review of initial 100 cases

    International Nuclear Information System (INIS)

    Maesawa, Satoshi; Nakahara, Norimoto; Watanabe, Tadashi; Fujii, Masazumi; Saito, Kiyoshi; Kajita, Yasukazu; Nagatani, Tetsuya; Wakabayashi, Toshihiko; Yoshida, Jun

    2009-01-01

    Initial experiences are reviewed in an integrated operation theater equipped with an intraoperative high-field (1.5 T) magnetic resonance (MR) imager and neuro-navigation (BrainSUITE), to evaluate the indications and limitations. One hundred consecutive cases were treated, consisting of 38 gliomas, 49 other tumors, 11 cerebrovascular diseases, and 2 functional diseases. The feasibility and usefulness of the integrated theater were evaluated for individual diseases, focusing on whether intraoperative images (including diffusion tensor imaging) affected the surgical strategy. The extent of resection and outcomes in each histological category of brain tumors were examined. Intraoperative high-field MR imaging frequently affected or modified the surgical strategy in the glioma group (27/38 cases, 71.1%), but less in the other tumor group (13/49 cases, 26.5%). The surgical strategy was not modified in cerebrovascular or functional diseases, but the success of procedures and the absence of complications could be confirmed. In glioma surgery, subtotal or greater resection was achieved in 22 of the 31 patients (71%) excluding biopsies, and intraoperative images revealed tumor remnants resulting in the extension of resection in 21 of the 22 patients (95.4%), the highest rate of extension among all types of pathologies. The integrated neuro-navigation improved workflow. The best indication for intraoperative high-field MR imaging and integrated neuro-navigation is brain tumors, especially gliomas, and is supplementary in assuring quality in surgery for cerebrovascular or functional diseases. Immediate quality assurance is provided in several types of neurosurgical procedures. (author)

  3. Piano a Rogers: Vysoce technické nás osvobodí

    Czech Academy of Sciences Publication Activity Database

    Švácha, Rostislav

    2007-01-01

    Roč. 14, č. 3 (2007), s. 78 ISSN 1210-9568 Institutional research plan: CEZ:AV0Z80330511 Keywords : architecture * Renzo Piano * Richard Rogers Subject RIV: AL - Art, Architecture, Cultural Heritage

  4. Interview with Guillermo Arrévalo, a Shipibo urban shaman, by Roger Rumrrill. Interview by Roger Rumrrill.

    Science.gov (United States)

    Arrévalo, Guillermo

    2005-06-01

    Roger Rumrrill, a journalist headquartered in Lima, Peru who is a noted expert on the Peruvian Amazon, interviewed Guillermo Arrévalo, a Shipibo urban shaman in Pucallpa, who utilizes ayahuasca in curing rituals. Sr. Arrévalo comments on the phenomenon known as drug tourism, where urban men and women provide tours for foreigners, for a price, to experience drug-induced mystical experiences in urban settings like Iquitos and Pucallpa, Peru, as well as in Brazil, Bolivia and Ecuador. Arrévalo distinguishes between folkloric shamanism and touristic practices which are currently in vogue and, in his opinion, are the result of people trying to resolve personal problems. Arrévalo sees a spiritual and psychological crisis in Europe and North American society. The Shipibo shaman laments the misuse of toxic plants as additives to the ayahuasca potion and the damage that these plants cause to the unsuspecting tourist who doesn't really get his money's worth from shamans without experience, people who are liars and cheats and who don't have the capacity, the preparation or the boldness to do the work.

  5. Translation and Creative Writing: An Interview with Professor Margaret Rogers

    Directory of Open Access Journals (Sweden)

    Ruzbeh Babaee

    2016-01-01

    Full Text Available Introduction This interview was conducted with Emerita Professor Margaret Rogers with the aim of providing a brief but informative summary of the relationship between translation and creative writing. Emerita Professor Rogers is in the Centre for Translation Studies, School of English and Languages, University of Surrey, UK. She is also the founder of Terminology Network at the Institute of Translation and Interpreting in the UK. Professor Rogers introduced creative writing into the translation curriculum some 10 years ago at her own university.   The Interview   RB[1]: Do you believe in a theory of translation? MR[2]: There are many ways of trying to understand and, where we can, explain translation in all its guises, loci and times. To talk about ‘a theory’ in this context doesn’t help much. There are many different approaches to the academic study of translation: rather simply put, the particular approach which we choose to adopt may depend on our object of study (e.g. literary translation or specialised translation, what we want to find out about this (e.g. are we interested in product or process, in a historical or contemporary perspective, what resources we have available (e.g. a fully funded research team or a solo effort and so on. Many projects are interdisciplinary—this has long been recognised—and translation scholars are becoming much more resourceful in identifying, adopting and adapting relevant approaches from intersecting disciplines such as comparative literature, cultural studies, history, linguistics, philosophy, psychology and sociology. Some scholars are now advocating a problem-based approach. In any research project it is important to establish how the problem/phenomenon/issue which has been identified as the focus of the study can be tackled. For this, in an empirical study a method is crucial: in translation studies this is rarely something that can be picked off the shelf and is often a contribution to the

  6. The value of high-field MRI (3 T) in the assessment of sellar lesions

    Energy Technology Data Exchange (ETDEWEB)

    Pinker, K. [Department of Diagnostic Radiology, Medical University Vienna, Waehringer Guertel 18-20, 1090 Vienna (Austria); Ba-Ssalamah, A. [Department of Diagnostic Radiology, Medical University Vienna, Waehringer Guertel 18-20, 1090 Vienna (Austria); Wolfsberger, S. [Department of Neurosurgery, Medical University Vienna (Austria); Mlynarik, V. [Department of Diagnostic Radiology, Medical University Vienna, Waehringer Guertel 18-20, 1090 Vienna (Austria); Knosp, E. [Department of Neurosurgery, Medical University Vienna (Austria); Trattnig, S. [Department of Diagnostic Radiology, Medical University Vienna, Waehringer Guertel 18-20, 1090 Vienna (Austria)]. E-mail: siegfried.trattnig@univie.ac.at

    2005-06-01

    The aim of this study was the evaluation of the normal sellar anatomy in vitro and in vivo with high-field MRI and its application in the diagnosis of sellar pathologies in comparison to standard MRI. All high-field MR images were obtained using a 3 T Bruker Medspec 30/80 Scanner with a head birdcage transmit/receive coil and an actively shielded gradient system with a maximum gradient strength of 45 mT/m. Firstly an in vitro study of the sella turcica was performed to depict normal pituitary and sellar anatomy at high field. After a pilot-study this sequence-protocol was established: A RARE sequence (TR/TE = 7790/19 ms; matrix size, 512 x 512; RARE factor = 8, FOV, 200 mm) was used for T2-weighted coronal, axial and sagittal images. A 3D gradient echo sequence with magnetization-preparation (MP-RAGE, TR/TE/TI 33.5/7.6/800 ms, matrix size, 512 x 512; FOV, 200 mm, effective slice thickness, 1.88 mm; 3 averages) was used for acquisition of T1-weighted pre- and post-contrast images. Between January 2002 and March 200458 patients were enrolled in this study. Seven patients were examined for suspected microadenoma and in 51 patients 3T MRI was used to obtain additional information about the sellar lesion already known to be present from standard MRI. In 21 cases the accuracy of the imaging findings was assessed afterwards by comparison with intraoperative findings. The infiltration of the medial cavernous sinus wall was suspected on standard MRI on 15 sides (47%), on high-field MRI on 9 sides (28%) and could be verified by intraoperative findings on 6 sides (19%). Accordingly, sensitivity to infiltration was 83% for 3 T and 67% for standard MRI. Specificity was 84% for 3 T and 58% for standard MRI. Moreover, high-field MRI revealed microadenomas in 7 patients with a median diameter of 4 mm (range 2-9 mm). The segments of the cranial nerves were seen as mean 4 hypointense spots (range 2-5 spots) on high-field MRI in contrast to 3 spots (range 0-4 spots) on standard MRI

  7. Downstage migration after neoadjuvant chemoradiotherapy for rectal cancer: the reverse of the Will Rogers phenomenon?

    Science.gov (United States)

    Fokas, Emmanouil; Liersch, Torsten; Fietkau, Rainer; Hohenberger, Werner; Hess, Clemens; Becker, Heinz; Sauer, Rolf; Wittekind, Christian; Rödel, Claus

    2015-06-01

    Downstaging after neoadjuvant treatment is increasingly used as a prognostic factor and surrogate endpoint in clinical trials. However, in recent trials of neoadjuvant 5-fluorouracil-based chemoradiotherapy for rectal cancer, downstaging did not translate into a benefit with regard to either disease-free survival (DFS) or overall survival. By analyzing the 10-year outcome data of the German CAO/ARO/AIO-94 phase 3 trial, the authors demonstrated that significantly fewer patients had poor prognostic features (eg, ypT3-4, ypN1-2) after preoperative 5-fluorouracil-based chemoradiotherapy. Nevertheless, these patients with International Union for Cancer Control stage II disease were found to be at a higher risk of developing distant metastases and had poorer DFS compared with patients with corresponding TNM tumor (sub)groups in the postoperative treatment arm, whereas patients with International Union for Cancer Control stage III disease demonstrated a nonsignificant trend toward a worse outcome after preoperative treatment. Overall, DFS remained identical in both treatment arms. Thus, "downstage migration" after neoadjuvant treatment resembles the reverse of the Will Rogers phenomenon and therefore may not be a reliable endpoint for long-term outcomes. © 2015 American Cancer Society.

  8. A biomechanical comparison of the Rogers interspinous and the Lovely-Carl tension band wiring techniques for fixation of the cervical spine.

    Science.gov (United States)

    Brasil, A V; Coehlo, D G; Filho, T E; Braga, F M

    2000-07-01

    The authors conducted a biomechanical study in which they compared the uses of the Rogers interspinous and the Lovely-Carl tension band wiring techniques for internal fixation of the cervical spine. An extensive biomechanical evaluation (stiffness in positive and negative rotations around the x, y, and z axes; range of motion in flexion-extension, bilateral axial rotation, and bilateral bending; and neutral zone in flexion-extension, bilateral axial rotation, and lateral bending to the right and to the left) was performed in two groups of intact calf cervical spines. After these initial tests, all specimens were subjected to a distractive flexion Stage 3 ligamentous lesion. Group 1 specimens then underwent surgical fixation by the Rogers technique, and Group 2 specimens underwent surgery by using the Lovely-Carl technique. After fixation, specimens were again submitted to the same biomechanical evaluation. The percentage increase or decrease between the pre- and postoperative parameters was calculated. These values were considered quantitative indicators of the efficacy of the techniques, and the efficacy of the two techniques was compared. Analysis of the findings demonstrated that in the spines treated with the Lovely-Carl technique less restriction of movement was produced without affecting stiffness, compared with those treated with the Rogers technique, thus making the Lovely-Carl technique clinically less useful.

  9. FENOMENOLOGIA NAS OBRAS DE CARL ROGERS: APONTAMENTOS PARA O CENÁRIO BRASILEIRO

    Directory of Open Access Journals (Sweden)

    Paulo Coelho Castelo Branco

    2017-10-01

    Full Text Available Analisamos a relação de Carl Rogers com a Fenomenologia segundo uma perspectiva historiográfica que examina a ocorrência de citações e referências que ele fez a filósofos de orientação fenomenológica. As obras de Rogers foram organizadas em ordem cronológica de publicação e lidas conforme as técnicas de leitura seletiva e interpretativa. Rogers mencionou cinco filósofos de orientação fenomenológica: José Ortega y Gasset, Paul Tillich, Simone de Beauvoir, Maurice Merleau-Ponty e Martin Heidegger. Destes, somente Heidegger é efetivamente trabalhado em um texto sobre o ensino e os demais filósofos procedem de indicações e citações de outros autores. Nos livros em que Rogers referencia esses filósofos não há nenhuma discussão sobre a Fenomenologia; porém, há textos em que Rogers disserta sobre a Fenomenologia sem citar fenomenólogos. A Fenomenologia que Rogers menciona não é a filosófica, a qual ele teve ressalvas, mas é um paradigma estadunidense de ciência empírica e estudos da personalidade. A despeito disso, desenvolve-se no Brasil um movimento pós-rogeriano de orientação filosófica fenomenológica. Ponderamos, finalmente, algumas observações sobre o que distingue o movimento brasileiro daquele paradigma contatado por Rogers nos EUA.

  10. Rogers' interviews with Gloria and Kathy revisited: A micro-analysis of the client-therapist interaction.

    OpenAIRE

    Takens, R.J.

    2005-01-01

    In order to illustrate the use of the Processing Modes Scales of Sachse (1990a) two prototypical interviews of Rogers, respectively with Gloria and Kathy, were analyzed. It was hypothesized that Rogers would offer his clients high levels of 'processing proposals', and that, as a consequence, his clients would show high levels of processing, too. Indeed, Rogers' processing proposals were much deeper than normally found, as were the processing modes by the two clients involved. It also turned o...

  11. Modular relations for the Rogers-Ramanujan-Slater type functions of order fifteen and its applications to partitions

    Directory of Open Access Journals (Sweden)

    Chandrashekar Adiga

    2013-10-01

    Full Text Available In a manuscript of Ramanujan, published with his Lost Notebook [20] there are forty identities involving the Rogers-Ramanujan functions. In this paper, we establish several modular relations involving the Rogers-Ramanujan functions and the Rogers-Ramanujan-Slater type functions of order fifteen which are analogues to Ramanujan’s well known forty identities. Furthermore, we give partition theoretic interpretations of two modular relations.

  12. Fabrication and testing of the Nb3Sn superconductor for High-Field Test Facility (HFTF)

    International Nuclear Information System (INIS)

    Spencer, C.; Adam, E.; Gregory, E.; Marancik, W.; Sanger, P.; Scanlan, R.; Cornish, D.

    1979-01-01

    A 5000 A-12 T fully stable Nb 3 Sn superconductor has to be produced for the insert magnet of the high-field test facility being built at Lawrence Livermore Laboratory. A process is described which permits the fabrication of long lengths of large fully transposed monolithic superconductors containing in excess of 100,000 filaments of Nb 3 Sn. Measurements of critical current as a function of magnetic field and longitudinal strain on prototype samples are reported

  13. Robot-assisted biopsies in a high-field MRI system. First clinical results

    International Nuclear Information System (INIS)

    Schell, B.; Eichler, K.; Mack, M.G.; Mueller, C.; Kerl, J.M.; Beeres, M.; Thalhammer, A.; Vogl, T.J.; Zangos, S.; Czerny, C.

    2012-01-01

    Purpose: The purpose of this study was to examine the clinical use of MR-guided biopsies in patients with suspicious lesions using a new MR-compatible assistance system in a high-field MR system. Materials and Methods: Six patients with suspicious focal lesions in various anatomic regions underwent percutanous biopsy in a high-field MR system (1.5 T, Magnetom Espree, Siemens) using a new MR-compatible assistance system (Innomotion). The procedures were planned and guided using T1-weighted FLASH and TrueFISP sequences. A servopneumatic drive then moved the guiding arm automatically to the insertion point. An MRI compatible 15G biopsy system (Somatex) was introduced by a physician guided by the needle holder and multiple biopsies were performed using the coaxial technique. The feasibility, duration of the intervention and biopsy findings were analyzed. Results: The proposed new system allows accurate punctures in a high-field MR system. The assistance device did not interfere with the image quality, and guided the needle virtually exactly as planned. Histological examination could be conducted on every patient. The lesion was malignant in four cases, and an infectious etiology was diagnosed for the two remaining lesions. Regarding the differentiation of anatomical and pathological structures and position monitoring of the insertion needle, TrueFISP images are to be given preference. The average intervention time was 41 minutes. Lesions up to 15.4 cm beneath the skin surface were punctured. Conclusion: The proposed MR-guided assistance system can be successfully utilized in a high-field MR system for accurate punctures of even deep lesions in various anatomic regions. (orig.)

  14. Awake craniotomy, electrophysiologic mapping, and tumor resection with high-field intraoperative MRI.

    Science.gov (United States)

    Parney, Ian F; Goerss, Stephan J; McGee, Kiaran; Huston, John; Perkins, William J; Meyer, Frederic B

    2010-05-01

    Awake craniotomy and electrophysiologic mapping (EPM) is an established technique to facilitate the resection of near eloquent cortex. Intraoperative magnetic resonance imaging (iMRI) is increasingly used to aid in the resection of intracranial lesions. Standard draping protocols in high-field iMRI units make awake craniotomies challenging, and only two groups have previously reported combined EPM and high-field iMRI. We present an illustrative case describing a simple technique for combining awake craniotomy and EPM with high-field iMRI. A movable platter is used to transfer the patient from the operating table to a transport trolley and into the adjacent MRI and still maintaining the patient's surgical position. This system allows excess drapes to be removed, facilitating awake craniotomy. A 57-year-old right-handed man presented with new onset seizures. Magnetic resonance imaging demonstrated a large left temporal mass. The patient underwent an awake, left frontotemporal craniotomy. The EPM demonstrated a single critical area for speech in his inferior frontal gyrus. After an initial tumor debulking, the scalp flap was loosely approximated, the wound was covered with additional drapes, and the excess surrounding drapes were trimmed. An iMRI was obtained. The image-guidance system was re-registered and the patient was redraped. Additional resection was performed, allowing extensive removal of what proved to be an anaplastic astrocytoma. The patient tolerated this well without any new neurological deficits. Standard protocols for positioning and draping in high-field iMRI units make awake craniotomies problematic. This straightforward technique for combined awake EPM and iMRI may facilitate safe removal of large lesions in eloquent cortex. Copyright © 2010 Elsevier Inc. All rights reserved.

  15. Development and manufacture of a Nb3Sn superconductor for the high-field test facility

    International Nuclear Information System (INIS)

    Scanlan, R.M.; Cornish, D.N.; Spencer, C.R.; Gregory, E.; Adam, E.

    1981-01-01

    The High-Field Test Facility (HFTF) project has two primary goals. The first is to establish manufacturing capability for a Nb 3 Sn conductor suitable for use in a mirror fusion coil. The second is to provide a test facility for evaluating other fusion conductor designs at high fields. This paper describes some of the problems encountered and the solutions devised in working toward the first goal. Construction of the test facility coils will be described in a subsequent paper

  16. Semiquantitative theory for high-field low-temperature properties of a distorted diamond spin chain

    Directory of Open Access Journals (Sweden)

    O. Derzhko

    2012-12-01

    Full Text Available We consider the antiferromagnetic Heisenberg model on a distorted diamond chain and use the localized-magnon picture adapted to a distorted geometry to discuss some of its high-field low-temperature properties. More specifically, in our study we assume that the partition function for a slightly distorted geometry has the same form as for ideal geometry, though with slightly dispersive one-magnon energies. We also discuss the relevance of such a description to azurite.

  17. Rogers' interviews with Gloria and Kathy revisited: a micro-analysis of the client-therapist interaction

    NARCIS (Netherlands)

    Takens, J.R.

    2005-01-01

    In order to illustrate the use of the Processing Modes Scales of Sachse (1990a) two prototypical interviews of Rogers, respectively with Gloria and Kathy, were analyzed. It was hypothesized that Rogers would offer his clients high levels of 'processing proposals', and that, as a consequence, his

  18. Rogers' interviews with Gloria and Kathy revisited: A micro-analysis of the client-therapist interaction.

    NARCIS (Netherlands)

    Takens, R.J.

    2005-01-01

    In order to illustrate the use of the Processing Modes Scales of Sachse (1990a) two prototypical interviews of Rogers, respectively with Gloria and Kathy, were analyzed. It was hypothesized that Rogers would offer his clients high levels of 'processing proposals', and that, as a consequence, his

  19. ROGER a potential orbital space debris removal system

    Science.gov (United States)

    Starke, Juergen; Bischof, Bernd; Foth, W.-O.; -J., J.; Günther

    The previous activities in the field of On Orbit Servicing studied in the 1990's included in partic-ular the capability of vehicles in GEO to capture and support satellites (mainly communication satellites) to enable repair and continuation of operations, and finally the controlled transfer the target into a permanent graveyard orbit. The specific capture tools for these applications were mostly based on robotic systems to capture and fix the target under specific dynamic constraints (e.g. slowly tumbling target) without damage, and to allow the stabilization, re-orientation and potential repair of the target and subsequent release or transport to the final disposal orbit. Due to the drastically increasing number of debris particularly in the Low Earth Orbits (SSO) the active debris removal is now necessary to counteract to the predicted debris production cascade (Kessler Syndrome), which means the pollution of the total sphere in low earth orbit and not only the SSO area. In most of the debris congresses it was recommended to start removal with the still integrated systems as soon as possible. In the case of large debris objects, the soft capture system can be replaced by a simpler and robust system able to operate from a safe distance to the target and flexible enough to capture and hold different types of targets such as deactivated and/or defective satellites, upper stages and big fragments. These nominally non -cooperative targets might be partially destroyed by the capture process, but the production of additional debris shall be avoided. A major argument for the commercial applications is a multi-target mission potential, which is possible at GEO because the transfer propellant requirement to the disposal orbit and the return to the orbit of the next potential target is relative low (orbits with similar inclination and altitude). The proposed ROGER system is designed as a spacecraft with rendezvous capabilities including inspection in the vicinity of the

  20. Testing aspects of Carl Rogers's theory of creative environments: child-rearing antecedents of creative potential in young adolescents.

    Science.gov (United States)

    Harrington, D M; Block, J H; Block, J

    1987-04-01

    Longitudinal data involving 106 children and their parents were used to test preschool child-rearing implications of Carl Rogers's theory of creativity-fostering environments (Rogers, 1954). Indices were developed for each parent and for each mother-father combination that reflected the degree to which the parents' child-rearing practices and interactions with their preschool children matched the recommendations implicit in Rogers's description of a creativity-fostering environment. The three indices of Rogers-prescribed child-rearing practices each correlated positively (rs = .38 to .46) and significantly (all ps less than .001) with a composite index of creative potential in early adolescence, 7 to 11 years later. Rogers-prescribed preschool child-rearing practices also emerged as significant antecedents of adolescent creative potential in regression/path analyses that held constant the influence of sex, preschool intelligence, and preschool creative potential. Theoretical and methodological aspects of the study are discussed.

  1. Dialectic thinking as a means of understanding systems-in-development: relevance to Rogers's principles.

    Science.gov (United States)

    Wilson, L M; Fitzpatrick, J J

    1984-01-01

    This paper explores the dialectical noncausal category of determination as a method of explaining human development and examines its relationship to Rogers's principles of homeodynamics. The relationships among determinism, causality, and lawfulness are discussed, and the categories of determination are reviewed.

  2. Integrating the Beliefs of Dewey, Lewin, and Rogers into a Rationale for Effective Group Leadership.

    Science.gov (United States)

    Grove, Richard W.

    1992-01-01

    Presents a rationale for effective group leadership grounded in John Withall's articulation of selected beliefs of John Dewey, Kurt Lewin, and Carl Rogers. Teachers and administrators need more and better preparation in collaborative inquiry. Knowledge and skills in collaborative inquiry should undergird the successful functioning of groups of…

  3. Kas Roger Federer suudab Rafael Nadali alistada ka Pariisis? / Maarja Värv

    Index Scriptorium Estoniae

    Värv, Maarja

    2007-01-01

    Prantsusmaa lahtiste tennisemeistrivõistluste eel on paljude jaoks suurim küsimus, kas maailma esinumber Roger Federer suudab lõpuks võita ka Roland Garros' esikoha ning astuda sammu suure slämmi suunas. Vt. samas: Maret Ani põhiturniirile ei pääsenud

  4. Let’s Stop HIV Together: Jamar Rogers

    Centers for Disease Control (CDC) Podcasts

    2012-07-16

    In this podcast, singer Jamar Rogers shares his personal story in the Let's Stop HIV Together Campaign.  Created: 7/16/2012 by National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP).   Date Released: 7/16/2012.

  5. Where Were the Whistleblowers? The Case of Allan McDonald and Roger Boisjoly.

    Science.gov (United States)

    Stewart, Lea P.

    Employees who "blow the whistle" on their company because they believe it is engaged in practices that are illegal, immoral, or harmful to the public, often face grave consequences for their actions, including demotion, harassment, forced resignation, or termination. The case of Allan McDonald and Roger Boisjoly, engineers who blew the…

  6. Roger Caillois dans les impasses du Collège de Sociologie

    OpenAIRE

    Bridet , Guillaume

    2007-01-01

    International audience; Roger Caillois in the Collège de Sociologie’s ImpassesBataille, Leiris, and Caillois aimed for an activist sociology, the latter becoming an ardent defender of an elitist conception of society’s redemption through its producers of ideas – a conception both the war and the evolution of his fellow colleagues were to render completely obsolete.

  7. Carl Rogers's Life and Work: An Assessment on the 100Th Anniversary of His Birth

    Science.gov (United States)

    Kirschenbaum, Howard

    2004-01-01

    This article summarizes the life and work of America's most influential counselor and psychotherapist, Carl Rogers. He developed the client-centered, person-centered approach; popularized the term client; pioneered the recording of counseling cases; conducted landmark research on counseling and psychotherapy; and was a leader in the humanistic…

  8. Education for the 1980s and Beyond: An Interview with Carl Rogers.

    Science.gov (United States)

    Robinson, Edward H., III

    1985-01-01

    Presents an interview with Carl Rogers regarding education today and what it could be in the future. Discusses topics including politics and power, free choice versus conservatism, censorship, facilitators of learning, knowledge children need in today's world, and the changing society as it relates to humanistic education. (BH)

  9. MR equipment acquisition strategies: low-field or high-field scanners

    International Nuclear Information System (INIS)

    Marti-Bonmati, L.; Kormano, M.

    1997-01-01

    Magnetic resonance (MR) field strength is one of the key aspects to consider when purchasing MR equipment. Other aspects include the gradient system, coil design, computer and pulse sequence availability, purchase cost, local reimbursement policies, and current opinion within the medical community. Our objective here is to evaluate the decision-influencing aspects of the MR market, with a focus on some specific areas such as high resolution studies, examination times, special techniques, instrumentation, open design magnets, costs and reimbursement policies, academic and industrial interests, contrast media, clinical efficacy, and finally, clinicians' preferences. Certainly the advantage of high-field is a higher signal-to-noise ratio and improved resolution. With a high-field unit, higher spatial resolution images and higher temporal resolution images can be obtained. Typical imaging times needed to produce clinically diagnostic images are about 3 times longer at 0.1 T than at 1.0 or 1.5 T. High-field-related advanced techniques, such as functional imaging, spectroscopy and microscopy, may become clinically useful in the near future. As long as there is an unlimited demand for MR examinations, it appears financially profitable to run a high-field system, despite the associated higher costs. However, if demand for MR becomes saturated, low-field systems will cause less financial strain on the reimbursement organisation and service provider. Recent emphasis on cost containment, the development of interventional techniques, the increased use of MR for patients in intensive care and operating suites, the deployment of magnets in office suites, and the development of new magnet configurations, all favour the supplementary use of low-field systems. Hence, MR units of all field strengths have a role in radiology. (orig.)

  10. X-ray powder diffraction camera for high-field experiments

    International Nuclear Information System (INIS)

    Koyama, K; Mitsui, Y; Takahashi, K; Watanabe, K

    2009-01-01

    We have designed a high-field X-ray diffraction (HF-XRD) camera which will be inserted into an experimental room temperature bore (100 mm) of a conventional solenoid-type cryocooled superconducting magnet (10T-CSM). Using the prototype camera that is same size of the HF-XRD camera, a XRD pattern of Si is taken at room temperature in a zero magnetic field. From the obtained results, the expected ability of the designed HF-XRD camera is presented.

  11. High-field magnetic resonance imaging of the human temporal lobe

    Directory of Open Access Journals (Sweden)

    Luis M. Colon-Perez

    2015-01-01

    Conclusions: Fresh ex vivo MR imaging, along with tractography, revealed complex intra-temporal structural variation corresponding to neuronal cell body layers, dendritic fields, and axonal projection systems evident histologically. This is the first study to describe in detail the human temporal lobe structural organization using high-field MR imaging and tractography. By preserving the 3-dimensional structures of the hippocampus and surrounding structures, specific changes in anatomy may inform us about the changes that occur in TLE in relation to the disease process and structural underpinnings in epilepsy-related memory dysfunction.

  12. Recent developments at the high-field laboratory of Tohoku University

    International Nuclear Information System (INIS)

    Motokawa, M.; Watanabe, K.; Miura, S.; Awaji, S.; Nojiri, H.; Mogi, I.; Mitsudo, S.; Sakon, T.

    1998-01-01

    Recent developments and experiments performed at the high-field laboratory of Tohoku University are described. We have (1) hybrid magnets which produce high fields up to 31.1 T, (2) liquid-helium-free superconducting magnets up to 11 T which are available continuously for more than a year, (3) a 20 T superconducting magnet, (4) pulsed field magnets up to 40 T by a 100 kJ bank and (5) repeating pulsed field systems up to 25 T, synchronized with a pulsed neutron source

  13. HIFI - a dedicated HIgh-FIeld diffraction and spectroscopy instrument

    International Nuclear Information System (INIS)

    Steffens, P.; Enderle, M.; Boehm, M.; Roux, S.

    2011-01-01

    The outstanding scientific impact of single-crystal neutron diffraction and spectroscopy in steady state vertical magnetic fields up to 15 T (17 T without dilution fringe) is reflected in numerous high-profile publications. Magnetic fields 30 T - 35 T in vertical geometry allow to address enigmatic questions without equivalence at lower fields. The constraints implied by such magnetic fields demand a specially designed dedicated instrument. Since the vertical field geometry is crucial for single-crystal diffraction as well as spectroscopy, the solid angle of scattered neutrons is restricted, and a high-flux reactor is best suited to host a corresponding instrument. We propose a world-wide unique versatile instrument for diffraction and spectroscopy in vertical steady fields of 30 T. (authors)

  14. High-field MR imaging of tethered cord

    International Nuclear Information System (INIS)

    Sigal, R.; Bicetre, L.; Blass, C.; Doyon, D.; Pariente, D.

    1986-01-01

    MR imaging examinations of 12 patients with tethered cord syndrome have been performed on a 1.5-T MR imaging unit. Patients ranged in age from 3 to 60 years. MR findings were compared with those of myelography and metrizamide CT in all cases. Five patients underwent surgical control and postoperative MR imaging. Sagittal and axial sections were obtained using a spin-echo multisection, multiecho technique. T1-axial weighted images (SE 600/25) were sufficient to locate the position of the tip of the conus. They also allowed identification of extraspinal and intraspinal lipomas and clear-cut demarcation form associated tethered cord. Drawbacks of MR imaging were lack of precise depiction of the bone structures and the fact that clear identification of abnormal roots was problematic. The craniovertebral junction was always checked; two asymptomatic Chiari malformations were visualized. This study leads the authors to conclude that MR imaging should be used as the examination of first choice in the management of tethered cord syndrome

  15. Conference on Representation Theory, Number Theory and Invariant Theory: on the Occasion of Roger Howe’s 70th Birthday

    CERN Document Server

    Kim, Ju-Lee; Zhu, Chen-Bo

    2017-01-01

    This book contains selected papers based on talks given at the "Representation Theory, Number Theory, and Invariant Theory" conference held at Yale University from June 1 to June 5, 2015. The meeting and this resulting volume are in honor of Professor Roger Howe, on the occasion of his 70th birthday, whose work and insights have been deeply influential in the development of these fields. The speakers who contributed to this work include Roger Howe's doctoral students, Roger Howe himself, and other world renowned mathematicians. Topics covered include automorphic forms, invariant theory, representation theory of reductive groups over local fields, and related subjects.

  16. Powder-in-tube (PIT) Nb$_{3}$Sn conductors for high-field magnets

    CERN Document Server

    Lindenhovius, J L H; den Ouden, A; Wessel, W A J; ten Kate, H H J

    2000-01-01

    New Nb/sub 3/Sn conductors, based on the powder-in-tube (PIT) process, have been developed for application in accelerator magnets and high-field solenoids. For application in accelerator magnets, SMI has developed a binary 504 filament PIT conductor by optimizing the manufacturing process and adjustment of the conductor lay-out. It uniquely combines a non-copper current density of 2680 A/mm/sup 2/@10 T with an effective filament diameter of about 20 mu m. This binary conductor may be used in a 10 T, wide bore model separator dipole magnet for the LHC, which is being developed by a collaboration of the University of Twente and CERN. A ternary (Nb/7.5wt%Ta)/sub 3/Sn conductor containing 37 filaments is particularly suited for application in extremely high-field superconducting solenoids. This wire features a copper content of 43%, a non-copper current density of 217 A/mm/sup 2/@20 T and a B/sub c2/ of 25.6 T. The main issues and the experimental results of the development program of PIT Nb/sub 3/Sn conductors a...

  17. High-field fMRI unveils orientation columns in humans.

    Science.gov (United States)

    Yacoub, Essa; Harel, Noam; Ugurbil, Kâmil

    2008-07-29

    Functional (f)MRI has revolutionized the field of human brain research. fMRI can noninvasively map the spatial architecture of brain function via localized increases in blood flow after sensory or cognitive stimulation. Recent advances in fMRI have led to enhanced sensitivity and spatial accuracy of the measured signals, indicating the possibility of detecting small neuronal ensembles that constitute fundamental computational units in the brain, such as cortical columns. Orientation columns in visual cortex are perhaps the best known example of such a functional organization in the brain. They cannot be discerned via anatomical characteristics, as with ocular dominance columns. Instead, the elucidation of their organization requires functional imaging methods. However, because of insufficient sensitivity, spatial accuracy, and image resolution of the available mapping techniques, thus far, they have not been detected in humans. Here, we demonstrate, by using high-field (7-T) fMRI, the existence and spatial features of orientation- selective columns in humans. Striking similarities were found with the known spatial features of these columns in monkeys. In addition, we found that a larger number of orientation columns are devoted to processing orientations around 90 degrees (vertical stimuli with horizontal motion), whereas relatively similar fMRI signal changes were observed across any given active column. With the current proliferation of high-field MRI systems and constant evolution of fMRI techniques, this study heralds the exciting prospect of exploring unmapped and/or unknown columnar level functional organizations in the human brain.

  18. Plasma profiles and flows in the high-field side scrape-off layer in Alcator C-Mod

    Energy Technology Data Exchange (ETDEWEB)

    Smick, N. [MIT Plasma Science and Fusion Center, NW17-170, 175 Albany St., Cambridge, MA 02139 (United States)]. E-mail: nsmick@mit.edu; LaBombard, B. [MIT Plasma Science and Fusion Center, NW17-170, 175 Albany St., Cambridge, MA 02139 (United States); Pitcher, C.S. [132 Bowood Ave., Toronto, M4N1Y5 (Canada)

    2005-03-01

    A novel, magnetically-driven swing probe was recently installed near the midplane on the high-field side SOL in Alcator C-Mod. The probe collects plasma from co- and counter-current directions during its respective 0-90 deg and 90-180 deg of motion, thus providing profiles of density, electron temperature and plasma flow parallel to magnetic field lines (Mach number, M{sub parallel}) up to the separatrix. Results are reported from discharges with different magnetic topologies: lower single-null, upper single-null, and double-null. In single-null, a strong parallel flow (vertical bar M{sub parallel} vertical bar {approx} 1) is detected, which is always directed from the low- to high-field SOL. In double-null discharges, e-folding lengths in the high-field SOL are a factor of {approx}4 shorter than the low-field SOL. Thus, plasma appears to 'fill-in' the high-field SOL in single-null plasmas, not by cross-field transport but by parallel flow from the low-field SOL - a picture consistent with a very strong ballooning-like component to the cross-field transport.

  19. High-field spin-echo MR imaging of superficial and subependymal siderosis secondary to neonatal intraventricular hemorrhage

    International Nuclear Information System (INIS)

    Gomori, J.M.; Grossman, R.I.; Goldberg, H.I.; Zimmerman, R.A.; Bilaniuk, L.T.

    1987-01-01

    Two cases of superficial siderosis with subependymal siderosis, secondary to neonatal intraventricular hemorrhage, are presented. High-field spin-echo MR imaging (1.5 Tesla) showed marginal hypointensity of the ventricular walls as well as of the subpial regions. These findings were most evident on T 2 weighted images, characteristic of hemosiderotic deposits. (orig.)

  20. Kuraator ilust ja väest / Roger Pierre Turine ; tõlk. Tamara Luuk, interv. Teet Veispak

    Index Scriptorium Estoniae

    Turine, Roger Pierre

    2003-01-01

    Roger Pierre Turine'i kureeritud aafrika kunsti näitus "Ilu ja vägi" Rakvere Kesklinna galeriis kuni 27. IX. Näitusel eksponeeritakse osa Kadri ja Sven Viirese Ghanas, lobide maal tehtud reisifotodest

  1. Sotsiaalne ettevõtlus lahendab murekohti / Mervi Raudsaar, Roger Evans ; intervjueerinud Merilyn Merisalu

    Index Scriptorium Estoniae

    Raudsaar, Mervi, 1975-

    2012-01-01

    TÜ ettevõtluskeskuse kaasabil loetakse kevadsemestril Tartu ülikoolis, Eesti maaülikoolis, Tallinna ülikoolis ja EBS-is inglise- ja eestikeelset õppeainet "Sotsiaalse ettevõtluse alused". Loenguid loevad TÜ majandusteaduskonna ettevõtluse assistent Mervi Raudsaar, külalisprofessor Roger Evans Šotimaalt ning Margarita Sokolova Heateo Sihtasutusest. Ainekursus valmib koostöös Heateo Sihtasutuse ja EASiga

  2. Feeling our way into empathy: Carl rogers, Heinz Kohut, and Jesus.

    Science.gov (United States)

    Goodman, G

    1991-09-01

    Throughout their academic careers Carl Rogers and Heinz Kohut developed two contrasting definitions of empathy that influenced the ways in which both men sought to help their clients cope with emotional suffering. These two different understandings of empathy are contrasted to each other and finally compared with the understanding of empathy demonstrated in the teachings and actions of Jesus. It is hoped that through studying these ancient religious narratives we might be able to recover a deeper meaning of empathy.

  3. Steve Rogers' Character in Captain America: the First Avenger as a Representation of Hard Working Value in Traditional American Values

    OpenAIRE

    RAMADHAN, BHAYU

    2013-01-01

    Film is one of the most popular media which often elevates social values of a society. One of American social values is shown in Captain America: The First Avenger. Captain America: The First Avenger clearly portrays Steve Rogers' character as the representation of the hard working value of the Traditional American Values. In this film, Steve Rogers represents the hard working value by depicting the six characteristics of hard worker. The first characteristic of hard worker that is depicted b...

  4. Person-Centered Expressive Arts: An Alternative Path to Counseling and Education. An interview with Natalie Rogers

    OpenAIRE

    Laura Guadiana Martínez

    2003-01-01

    In this interview, Natalie Rogers PhD, expounds on how art and expression serve personal and group growth in Person Centered Expressive Arts Therapy. Adding to the legacy of her father Carl Rogers, creator of the Person Centered Approach, she describes the interweaving of her experiences as a therapist and woman, and how she afforded extra room in the process for intuition, creativity, emotions and the fascinating exploration of the human experience. Using modeling, sculpting, dance, p...

  5. Utilizing Rogers' Theory of Self-Concept in mental health nursing.

    Science.gov (United States)

    Hosking, P

    1993-06-01

    The work of mental health nurse is interactive in nature, the priority of which is the effective development and maintenance of a therapeutic relationship with clients. This field of nursing bases its practice on theories from many schools of thought in order to provide clients with the highest quality of care. One such theory is that of Carl Rogers whose practice as a psychotherapist was based on his Theory of Self-Concept. This paper examines the development of the Theory of Self-Concept from the works of Cooley, Mead, Allport and Rogers and relates to the therapeutic alliance between a primary nurse and a client who has been medically diagnosed as being 'depressed'. The implications for practice are considered and some of the difficulties of utilizing Rogers' theory on an in-patient unit are explored. The paper emphasizes the need for nurses to be aware of the use of such theories in order to enrich the care that clients receive. It also highlights the need for nurses to be aware of their own 'self' when working with clients, a state that can only be achieved if the nurses themselves have adequate clinical supervision and an environment which is supportive of such work.

  6. On the enduring and substantial influence of Carl Rogers' not-quite necessary nor sufficient conditions.

    Science.gov (United States)

    Farber, Barry A

    2007-09-01

    Carl Rogers' 1957 paper (see record 2007-14639-002) is arguably the most successful of his many attempts to clarify and render testable the ideas behind client-centered therapy. While each of the conditions that Rogers postulated has been linked to positive therapeutic outcome, taken together they have never been conclusively proved (nor disproved) to be either necessary or sufficient for positive outcome. Nevertheless, the overriding "take-home" message in this classic paper--that the therapist's attitude and caring presence is critical for therapeutic success--is one that has had virtually unparalleled influence in every segment of the psychotherapeutic community. Clinical and theoretical innovations in the psychoanalytic community serve as examples of the following proposition: that Rogers' concepts, while accepted more than ever by a remarkably wide variety of psychotherapists, remain essentially unacknowledged as originating with him or in the tradition of humanistic and client-centered therapy. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  7. High-field EPR on membrane proteins - crossing the gap to NMR.

    Science.gov (United States)

    Möbius, Klaus; Lubitz, Wolfgang; Savitsky, Anton

    2013-11-01

    quantities of sample molecules have become sufficient to characterize stable and transient reaction intermediates of complex molecular systems - offering highly interesting applications for chemists, biochemists and molecular biologists. In three case studies, representative examples of advanced EPR spectroscopy are reviewed: (I) High-field PELDOR and ENDOR structure determination of cation-anion radical pairs in reaction centers from photosynthetic purple bacteria and cyanobacteria (Photosystem I); (II) High-field ENDOR and ELDOR-detected NMR spectroscopy on the oxygen-evolving complex of Photosystem II; and (III) High-field electron dipolar spectroscopy on nitroxide spin-labelled bacteriorhodopsin for structure-function studies. An extended conclusion with an outlook to further developments and applications is also presented. Copyright © 2013 Elsevier B.V. All rights reserved.

  8. The value of conventional high-field MRI in MS in the light of the McDonald criteria: a literature review

    DEFF Research Database (Denmark)

    Larsen, Line Sofie Lunde; Larsson, H B W; Frederiksen, Jette Lautrup Battistini

    2010-01-01

    The diagnosis of MS is based on the revised McDonald criteria and is multidisciplinary. Both clinical and paraclinical measures are included. High-field magnetic resonance imaging (MRI) is becoming increasingly available and it is therefore necessary to clarify possible advantages of high-field MRI...... multiple sclerosis. Further larger studies of patients with clinically isolated syndromes are needed to settle the question of a diagnostic consequence of high-field imaging in MS. We suggest that the next revision of the McDonald diagnostic criteria include a recommendation of field strength....

  9. An intelligent detection method for high-field asymmetric waveform ion mobility spectrometry.

    Science.gov (United States)

    Li, Yue; Yu, Jianwen; Ruan, Zhiming; Chen, Chilai; Chen, Ran; Wang, Han; Liu, Youjiang; Wang, Xiaozhi; Li, Shan

    2018-04-01

    In conventional high-field asymmetric waveform ion mobility spectrometry signal acquisition, multi-cycle detection is time consuming and limits somewhat the technique's scope for rapid field detection. In this study, a novel intelligent detection approach has been developed in which a threshold was set on the relative error of α parameters, which can eliminate unnecessary time spent on detection. In this method, two full-spectrum scans were made in advance to obtain the estimated compensation voltage at different dispersion voltages, resulting in a narrowing down of the whole scan area to just the peak area(s) of interest. This intelligent detection method can reduce the detection time to 5-10% of that of the original full-spectrum scan in a single cycle.

  10. Characteristics of symptomatic chronic subdural haematomas on high-field MRI

    International Nuclear Information System (INIS)

    Kaminogo, M.; Moroki, J.; Ochi, A.; Ichikura, A.; Onizuka, M.; Shibayama, A.; Miyake, H.; Shibata, S.

    1999-01-01

    We studied the frequency of various features of the appearances on high-field MRI in symptomatic patients with chronic subdural haematomas (CSDH). The ability to predict recurrence after treatment with one burr-hole procedure using MRI was evaluated. Recurrence was seen in three haematomas of group A and one of group B. Reoperation was most closely correlated with diffuse low signal on T2-weighted images but not with a multiloculated appearance. Low signal on T2 weighting was surprisingly high (72.5 %) and the age of the haematomas as estimated on the MRI correlated well with the interval between the onset of symptoms and MRI. Our findings support the causative role of recurrent bleeding in the enlargement of CSDH. (orig.)

  11. Quench Modeling in High-field Nb3Sn Accelerator Magnets

    Science.gov (United States)

    Bermudez, S. Izquierdo; Bajas, H.; Bottura, L.

    The development of high-field magnets is on-going in the framework of the LHC luminosity upgrade. The resulting peak field, in the range of 12 T to 13 T, requires the use Nb3Sn as superconductor. Due to the high stored energy density (compact winding for cost reduction) and the low stabilizer fraction (to achieve the desired margins), quench protection becomes a challenging problem. Accurate simulation of quench transientsin these magnets is hence crucial to the design choices, the definition of priority R&D and to prove that the magnets are fit for operation. In this paper we focus on the modelling of quench initiation and propagation, we describe approaches that are suitable for magnet simulation, and we compare numerical results with available experimental data.

  12. Fabrication of highly ordered nanoporous alumina films by stable high-field anodization

    International Nuclear Information System (INIS)

    Li Yanbo; Zheng Maojun; Ma Li; Shen Wenzhong

    2006-01-01

    Stable high-field anodization (1500-4000 A m -2 ) for the fabrication of highly ordered porous anodic alumina films has been realized in a H 3 PO 4 -H 2 O-C 2 H 5 OH system. By maintaining the self-ordering voltage and adjusting the anodizing current density, high-quality self-ordered alumina films with a controllable inter-pore distance over a large range are achieved. The high anodizing current densities lead to high-speed film growth (4-10 μm min -1 ). The inter-pore distance is not solely dependent on the anodizing voltage, but is also influenced by the anodizing current density. This approach is simple and cost-effective, and is of great value for applications in diverse areas of nanotechnology

  13. A new hybrid protection system for high-field superconducting magnets

    CERN Document Server

    Ravaioli, E; Kirby, G; ten Kate, H H J; Verweij, A P

    2014-01-01

    The new generation of high-field superconducting accelerator magnets poses a challenge concerning the protection of the magnet coil in the case of a quench. The very high stored energy per unit volume requires a fast and efficient quench heating system in order to avoid damage due to overheating. A new protection system for superconducting magnets is presented, comprising a combination of a novel coupling-loss induced quench (CLIQ) system and conventional quench heaters. CLIQ can provoke a very fast transition to the normal state in coil windings by introducing coupling loss and thus heat in the coil's conductor. The advantage of the hybrid protection system is a global transition, resulting in a much faster current decay, a significantly lower hot-spot temperature, and a more homogeneous temperature distribution in the magnet's coil.

  14. High-field specific heats of A15 V3Si and Nb3Sn

    International Nuclear Information System (INIS)

    Stewart, G.R.; Brandt, B.L.

    1984-01-01

    In order to further understand the anomalous behavior of the specific heat of Nb 3 Sn in an 18-T magnetic field discovered by Stewart, Cort, and Webb [Phys. Rev. B 24, 3841 (1981)], we have performed specific-heat measurements on a different sample of Nb 3 Sn at lower fields both in the normal and mixed states, as well as measurement to 19 T on both transforming and nontransforming V 3 Si. The high-field data for V 3 Si indicate that this material behaves quite normally, and that γ/sup trans/ 3 Sn, however, remains anomalous, with both the same ''kink'' in the normal-state field data as observed by Stewart, Cort, and Webb (although at a slightly higher temperature) and unusual mixed-state behavior. The mixed-state specific heat of the V 3 Si samples is as expected, based on earlier work on the mixed-state specific heat of V and Nb

  15. 3000% high-field magnetoresistance in super-lattices of CoFe nanoparticles

    International Nuclear Information System (INIS)

    Tan, Reasmey P.; Carrey, Julian; Respaud, Marc; Desvaux, Celine; Renaud, Philippe; Chaudret, Bruno

    2008-01-01

    We report on magnetotransport measurements on millimeter-large super-lattices of CoFe nanoparticles surrounded by an organic layer. Electrical properties are typical of Coulomb blockade in three-dimensional arrays of nanoparticles. A large high-field magnetoresistance, reaching up to 3000%, is measured between 1.8 and 10 K. This exceeds by two orders of magnitude magnetoresistance values generally measured in arrays of 3d transition metal ferromagnetic nanoparticles. The magnetoresistance amplitude scales with the magnetic field/temperature ratio and displays an unusual exponential dependency with the applied voltage. The magnetoresistance abruptly disappears below 1.8 K. We propose that the magnetoresistance is due to some individual paramagnetic moments localized between the metallic cores of the nanoparticles, the origin of which is discussed

  16. Coupled force-balance and particle-occupation rate equations for high-field electron transport

    International Nuclear Information System (INIS)

    Lei, X. L.

    2008-01-01

    It is pointed out that in the framework of balance-equation approach, the coupled force-balance and particle-occupation rate equations can be used as a complete set of equations to determine the high-field transport of semiconductors in both strong and weak electron-electron interaction limits. We call to attention that the occupation rate equation conserves the total particle number and maintains the energy balance of the relative electron system, and there is no need to introduce any other term in it. The addition of an energy-drift term in the particle-occupation rate equation [Phys. Rev. B 71, 195205 (2005)] is physically inadequate for the violation of the total particle-number conservation and the energy balance. It may lead to a substantial unphysical increase of the total particle number by the application of a dc electric field

  17. Low-field MRI can be more sensitive than high-field MRI

    Science.gov (United States)

    Coffey, Aaron M.; Truong, Milton L.; Chekmenev, Eduard Y.

    2013-12-01

    MRI signal-to-noise ratio (SNR) is the key factor for image quality. Conventionally, SNR is proportional to nuclear spin polarization, which scales linearly with magnetic field strength. Yet ever-stronger magnets present numerous technical and financial limitations. Low-field MRI can mitigate these constraints with equivalent SNR from non-equilibrium ‘hyperpolarization' schemes, which increase polarization by orders of magnitude independently of the magnetic field. Here, theory and experimental validation demonstrate that combination of field independent polarization (e.g. hyperpolarization) with frequency optimized MRI detection coils (i.e. multi-turn coils using the maximum allowed conductor length) results in low-field MRI sensitivity approaching and even rivaling that of high-field MRI. Four read-out frequencies were tested using samples with identical numbers of 1H and 13C spins. Experimental SNRs at 0.0475 T were ∼40% of those obtained at 4.7 T. Conservatively, theoretical SNRs at 0.0475 T 1.13-fold higher than those at 4.7 T were possible despite an ∼100-fold lower detection frequency, indicating feasibility of high-sensitivity MRI without technically challenging, expensive high-field magnets. The data at 4.7 T and 0.0475 T was obtained from different spectrometers with different RF probes. The SNR comparison between the two field strengths accounted for many differences in parameters such as system noise figures and variations in the probe detection coils including Q factors and coil diameters.

  18. A feasibility study of high-strength Bi-2223 conductor for high-field solenoids

    Science.gov (United States)

    Godeke, A.; Abraimov, D. V.; Arroyo, E.; Barret, N.; Bird, M. D.; Francis, A.; Jaroszynski, J.; Kurteva, D. V.; Markiewicz, W. D.; Marks, E. L.; Marshall, W. S.; McRae, D. M.; Noyes, P. D.; Pereira, R. C. P.; Viouchkov, Y. L.; Walsh, R. P.; White, J. M.

    2017-03-01

    We performed a feasibility study on a high-strength Bi{}2-xPb x Sr2Ca2Cu3O{}10-x(Bi-2223) tape conductor for high-field solenoid applications. The investigated conductor, DI-BSCCO Type HT-XX, is a pre-production version of Type HT-NX, which has recently become available from Sumitomo Electric Industries. It is based on their DI-BSCCO Type H tape, but laminated with a high-strength Ni-alloy. We used stress-strain characterizations, single- and double-bend tests, easy- and hard-way bent coil-turns at various radii, straight and helical samples in up to 31.2 T background field, and small 20-turn coils in up to 17 T background field to systematically determine the electro-mechanical limits in magnet-relevant conditions. In longitudinal tensile tests at 77 K, we found critical stress- and strain-levels of 516 MPa and 0.57%, respectively. In three decidedly different experiments we detected an amplification of the allowable strain with a combination of pure bending and Lorentz loading to ≥slant 0.92 % (calculated elastically at the outer tape edge). This significant strain level, and the fact that it is multi-filamentary conductor and available in the reacted and insulated state, makes DI-BSCCO HT-NX highly suitable for very high-field solenoids, for which high current densities and therefore high loads are required to retain manageable magnet dimensions.

  19. High-field magnetization curve of random-anisotropy amorphous magnet: Observation of a crossover and link to structural short-range order

    Science.gov (United States)

    Filippi, J.; Amaral, V. S.; Barbara, B.

    1991-08-01

    High-field magnetization curves of the series of amorphous alloys DyxGd1-xNi have been measured up to 15 tesla and interpreted in the framework of the theory of Chudnovsky et al. The results show several features (high-field crossovers, correlation volume of local-anisotropy directions, ferromagnetic correlation length) all consistent with each other and in agreement with theoretical predictions.

  20. High-field magnetization curve of random-anisotropy amorphous magnet: Observation of a crossover and link to structural short-range order

    International Nuclear Information System (INIS)

    Filippi, J.; Amaral, V.S.; Barbara, B.

    1991-01-01

    High-field magnetization curves of the series of amorphous alloys Dy x Gd 1-x Ni have been measured up to 15 tesla and interpreted in the framework of the theory of Chudnovsky et al. The results show several features (high-field crossovers, correlation volume of local-anisotropy directions, ferromagnetic correlation length) all consistent with each other and in agreement with theoretical predictions

  1. Analysis of Uncertainties in Protection Heater Delay Time Measurements and Simulations in Nb$_{3}$Sn High-Field Accelerator Magnets

    CERN Document Server

    Salmi, Tiina; Marchevsky, Maxim; Bajas, Hugo; Felice, Helene; Stenvall, Antti

    2015-01-01

    The quench protection of superconducting high-field accelerator magnets is presently based on protection heaters, which are activated upon quench detection to accelerate the quench propagation within the winding. Estimations of the heater delay to initiate a normal zone in the coil are essential for the protection design. During the development of Nb3Sn magnets for the LHC luminosity upgrade, protection heater delays have been measured in several experiments, and a new computational tool CoHDA (Code for Heater Delay Analysis) has been developed for heater design. Several computational quench analyses suggest that the efficiency of the present heater technology is on the borderline of protecting the magnets. Quantifying the inevitable uncertainties related to the measured and simulated delays is therefore of pivotal importance. In this paper, we analyze the uncertainties in the heater delay measurements and simulations using data from five impregnated high-field Nb3Sn magnets with different heater geometries. ...

  2. Analysis of Uncertainties in Protection Heater Delay Time Measurements and Simulations in Nb$_{3}$Sn High-Field Accelerator Magnets

    CERN Document Server

    Salmi, Tiina; Marchevsky, Maxim; Bajas, Hugo; Felice, Helene; Stenvall, Antti

    2015-01-01

    The quench protection of superconducting high-field accelerator magnets is presently based on protection heaters, which are activated upon quench detection to accelerate the quench propagation within the winding. Estimations of the heater delay to initiate a normal zone in the coil are essential for the protection design. During the development of Nb$_{3}$Sn magnets for the LHC luminosity upgrade, protection heater delays have been measured in several experiments, and a new computational tool CoHDA (Code for Heater Delay Analysis) has been developed for heater design. Several computational quench analyses suggest that the efficiency of the present heater technology is on the borderline of protecting the magnets. Quantifying the inevitable uncertainties related to the measured and simulated delays is therefore of pivotal importance. In this paper, we analyze the uncertainties in the heater delay measurements and simulations using data from five impregnated high-field Nb$_{3}$Sn magnets with different heater ge...

  3. Safety implications of high-field MRI: actuation of endogenous magnetic iron oxides in the human body.

    Directory of Open Access Journals (Sweden)

    Jon Dobson

    Full Text Available Magnetic Resonance Imaging scanners have become ubiquitous in hospitals and high-field systems (greater than 3 Tesla are becoming increasingly common. In light of recent European Union moves to limit high-field exposure for those working with MRI scanners, we have evaluated the potential for detrimental cellular effects via nanomagnetic actuation of endogenous iron oxides in the body.Theoretical models and experimental data on the composition and magnetic properties of endogenous iron oxides in human tissue were used to analyze the forces on iron oxide particles.Results show that, even at 9.4 Tesla, forces on these particles are unlikely to disrupt normal cellular function via nanomagnetic actuation.

  4. Roger Long’s gut-strung keyboard instruments and Thomas Barton’s harpsichord stringing

    OpenAIRE

    Rowland, David

    2016-01-01

    In 1720 Pepusch signed an inventory of the Duke of Chandos’s instruments that included a gut-strung harpsichord by a ‘Mr Longfellow of Pembroke Hall in Cambridge’. The maker was in fact Roger Long, Fellow and later Master of Pembroke Hall (now Pembroke College), Lowndes Professor of Astronomy, but also a keen musician and maker of astronomical, musical and other instruments. Long’s commonplace book in Pembroke’s library contains valuable information about gut and wire harpsichord stringing fr...

  5. Carta de Roger Guggisberg a Alain Guy. Ginebra, 30 de noviembre de 1993

    OpenAIRE

    Guggisberg, Roger

    2017-01-01

    1 p. -- Roger Guggisberg, director literario de Fundación Simón I. Patiño. Éditions (Ginebra, Suiza), da las gracias a Alain Guy por su carta de 30 de octubre, acompañada de numerosos anexos; y siente no haber podido coincidir con él en Ginebra con ocasión de su visita. Asimismo acusa recibo de la "importante" reseña que la Sra. Comesaña ha publicado en la revista de filosofía de la Universidad de Zulia (Venezuela). Valora mucho las páginas que Eudaldo Forment ha consagrado al pensamiento,...

  6. A recepção do pensamento de Roger Bastide no Brasil

    Directory of Open Access Journals (Sweden)

    Maria Lúcia de Santana Braga

    2000-12-01

    Full Text Available O artigo trata da recepção do pensamento de Roger Bastide no Brasil durante quase duas décadas, de 1938 a 1954. Bastide, como professor, pesquisador e pensador, estabeleceu relações diversas com seus contemporâneos e alunos. Aqui, com objetivo de compreender o impacto e a importância das idéias bastidianas no País, analisaremos as relações estruturadas com quatro ex-alunos e cientistas sociais brasileiros: Antônio Cândido, Florestan Fernandes, Gilda de Mello e Souza e Maria Isaura Pereira de Queiroz.

  7. High-field magnetization study of a Tm.sub.2./sub.Co.sub.17./sub. single crystal

    Czech Academy of Sciences Publication Activity Database

    Andreev, Alexander V.; Kuz'min, M.D.; Narumi, Y.; Skourski, Y.; Kudrevatykh, N. V.; Kindo, K.; de Boer, F.R.; Wosnitza, J.

    2010-01-01

    Roč. 81, č. 13 (2010), 134429/1-134429/5 ISSN 1098-0121 R&D Projects: GA ČR GA202/09/0339 Grant - others:EuroMagNET(XE) 228043 Institutional research plan: CEZ:AV0Z10100520 Keywords : rare-earth intermetallics * ferrimagnetism * high-field transition Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 3.772, year: 2010

  8. Intraoperative high-field magnetic resonance imaging, multimodal neuronavigation, and intraoperative electrophysiological monitoring-guided surgery for treating supratentorial cavernomas.

    Science.gov (United States)

    Li, Fang-Ye; Chen, Xiao-Lei; Xu, Bai-Nan

    2016-09-01

    To determine the beneficial effects of intraoperative high-field magnetic resonance imaging (MRI), multimodal neuronavigation, and intraoperative electrophysiological monitoring-guided surgery for treating supratentorial cavernomas. Twelve patients with 13 supratentorial cavernomas were prospectively enrolled and operated while using a 1.5 T intraoperative MRI, multimodal neuronavigation, and intraoperative electrophysiological monitoring. All cavernomas were deeply located in subcortical areas or involved critical areas. Intraoperative high-field MRIs were obtained for the intraoperative "visualization" of surrounding eloquent structures, "brain shift" corrections, and navigational plan updates. All cavernomas were successfully resected with guidance from intraoperative MRI, multimodal neuronavigation, and intraoperative electrophysiological monitoring. In 5 cases with supratentorial cavernomas, intraoperative "brain shift" severely deterred locating of the lesions; however, intraoperative MRI facilitated precise locating of these lesions. During long-term (>3 months) follow-up, some or all presenting signs and symptoms improved or resolved in 4 cases, but were unchanged in 7 patients. Intraoperative high-field MRI, multimodal neuronavigation, and intraoperative electrophysiological monitoring are helpful in surgeries for the treatment of small deeply seated subcortical cavernomas.

  9. 3.0-T high-field magnetic resonance imaging of the female pelvis: preliminary experiences

    International Nuclear Information System (INIS)

    Morakkabati-Spitz, N.; Gieseke, J.; Kuhl, C.; Lutterbey, G.; Falkenhausen, M. von; Traeber, F.; Zivanovic, O.; Schild, H.H.

    2005-01-01

    with our modified examination protocol. To fully exploit the capability of the high-field technique, and to point out potential advantages, further intraindividual studies are needed, with the adjustment of other imaging parameters to the high-field environment. (orig.)

  10. Teaching, the Legal Education and Carl Rogers Assumptions: A Case Study in a Private University

    Directory of Open Access Journals (Sweden)

    Leonardo José Peixoto Leal

    2015-12-01

    of examination lawyers and tenders, existing today a new vision called "legal education crisis" in Brazil. According to Carl Rogers (1972, the main role of the teacher is not only to teach but to help the student to learn. This idea has been legitimized internationally since the publication of the UNESCO Report (Delors, 1998, when it pointed out that "learning to know" constitutes one of the pillars of contemporary education. Rogers (1972, in the 1960s,  drew up a list of 10 assumptions implicit deeply rooted among teachers, paradigms that should be addressed by teachers The methodology used was literature and documents with a qualitative approach in the case like an argument from Case Study, considering the Master in Law and the experiences of the Monitoring and Group Study Program. It concludes that the critical evaluation is important in the formation of the legal profession, because the legal education needs to renew itself, from a teaching practice centered learning.

  11. Integrating mobile devices into nursing curricula: opportunities for implementation using Rogers' Diffusion of Innovation model.

    Science.gov (United States)

    Doyle, Glynda J; Garrett, Bernie; Currie, Leanne M

    2014-05-01

    To identify studies reporting mobile device integration into undergraduate and graduate nursing curricula. To explore the potential use of Rogers' Diffusion of Innovation model as a framework to guide implementation of mobile devices into nursing curricula. Literature review and thematic categorization. Literature published up until June 2013 was searched using EBSCO, PubMed, and Google Scholar. The literature was reviewed for research articles pertaining to mobile device use in nursing education. Research articles were grouped by study design, and articles were classified by: 1) strategies for individual adopters and 2) strategies for organizations. Rogers' Diffusion of Innovation theory was used to categorize reported implementation strategies. Fifty-two research studies were identified. Strategies for implementation were varied, and challenges to integrating mobile devices include lack of administrative support and time/funding to educate faculty as well as students. Overall, the use of mobile devices appears to provide benefits to nursing students; however the research evidence is limited. Anticipating challenges and ensuring a well laid out strategic plan can assist in supporting successful integration of mobile devices. Crown Copyright © 2013. Published by Elsevier Ltd. All rights reserved.

  12. Otto Rank, the Rankian circle in Philadelphia, and the origins of Carl Rogers' person-centered psychotherapy.

    Science.gov (United States)

    deCarvalho, R J

    1999-05-01

    Otto Rank's will therapy helped shape the ideas and techniques of relationship therapy developed by the Philadelphia social workers Jessie Taft, Virginia Robinson, and Frederick Allen in the 1930s. Rank's work and these ideas and techniques in turn strongly influenced the formulation of Carl Rogers' person-centered psychotherapy. This article compares and contrasts will, relationship, and person-centered approaches to psychotherapy and discusses the social factors--primarily the professional conflicts between a male-dominated psychiatry and female social workers over the independent practice of psychotherapy--that were crucial in the dissemination of Rank's psychological thought and the early popularity of Rogers.

  13. Behaviour of tetraalkylammonium ions in high-field asymmetric waveform ion mobility spectrometry.

    Science.gov (United States)

    Aksenov, Alexander A; Kapron, James T

    2010-05-30

    High-field asymmetric waveform ion mobility spectrometry (FAIMS) is an ion-filtering technique recently adapted for use with liquid chromatography/mass spectrometry (LC/MS) to remove interferences during analysis of complex matrices. This is the first systematic study of a series of singly charged tetraalkylammonium ions by FAIMS-MS. The compensation voltage (CV) is the DC offset of the waveform which permits the ion to emerge from FAIMS and it was determined for each member of the series under various conditions. The electrospray ionization conditions explored included spray voltage, vaporizer temperature, and sheath and auxiliary gas pressure. The FAIMS conditions explored included carrier gas flow rate, electrode temperature and composition of the carrier gas. Optimum desolvation was achieved using sufficient carrier gas (flow rate > or = 2 L/min) to ensure stable response. Low-mass ions (m/z 100-200) are more susceptible to changes in electrode temperature and gas composition than high mass ions (m/z 200-700). As a result of this study, ions are reliably analyzed using standard FAIMS conditions (dispersion voltage -5000 V, carrier gas flow rate 3 L/min, 50% helium/50%nitrogen, inner electrode temperature 70 degrees C and outer electrode temperature 90 degrees C). Variation of FAIMS conditions may be of great use for the separation of very low mass tetraalkylammonium (TAA) ions from other TAA ions. The FAIMS conditions do not appear to have a major effect on higher mass ions. Copyright 2010 John Wiley & Sons, Ltd.

  14. Methane Storage in Nanoporous Media as Observed via High-Field NMR Relaxometry

    Science.gov (United States)

    Papaioannou, A.; Kausik, R.

    2015-08-01

    The storage properties of methane gas in Vycor porous glass (5.7 nm) are characterized in a wide pressure range from 0.7 to 89.7 MPa using nuclear magnetic resonance. We demonstrate the capability of high-field nuclear-magnetic-resonance relaxometry for the determination of the methane-gas storage capacity and the measurement of the hydrogen index, to a high degree of accuracy. This helps determine the excess gas in the pore space which can be identified to exhibit Langmuir properties in the low pressure regime of 0.7 to 39.6 MPa. The Langmuir model enables us to determine the equilibrium density of the monolayer of adsorbed gas to be 8.5% lower than that of liquid methane. We also identify the signatures of multilayer adsorption at the high pressure regime from 39.6 to 89.7 MPa and use the Brunauer-Emmet-Teller theory to determine the number of adsorbed layers of methane gas. We show how these measurements help us differentiate the gas stored in the Vycor pore space into free and adsorbed fractions for the entire pressure range paving way for similar applications such as studying natural-gas storage in gas shale rock or hydrogen storage in carbon nanotubes.

  15. Considerations on a Cost Model for High-Field Dipole Arc Magnets for FCC

    CERN Document Server

    AUTHOR|(CDS)2078700; Durante, Maria; Lorin, Clement; Martinez, Teresa; Ruuskanen, Janne; Salmi, Tiina; Sorbi, Massimo; Tommasini, Davide; Toral, Fernando

    2017-01-01

    In the frame of the European Circular Collider (EuroCirCol), a conceptual design study for a post-Large Hadron Collider (LHC) research infrastructure based on an energy-frontier 100 TeV circular hadron collider [1]–[3], a cost model for the high-field dipole arc magnets is being developed. The aim of the cost model in the initial design phase is to provide the basis for sound strategic decisions towards cost effective designs, in particular: (A) the technological choice of superconducting material and its cost, (B) the target performance of Nb$_{3}$Sn superconductor, (C) the choice of operating temperature (D) the relevant design margins and their importance for cost, (E) the nature and extent of grading, and (F) the aperture’s influence on cost. Within the EuroCirCol study three design options for the high field dipole arc magnets are under study: cos − θ [4], block [5], and common-coil [6]. Here, in the advanced design phase, a cost model helps to (1) identify the cost drivers and feed-back this info...

  16. Assessment of Abdominal Fat Using High-field Magnetic Resonance Imaging and Anthropometric and Biochemical Parameters.

    Science.gov (United States)

    Al-Radaideh, Ali; Tayyem, Reema; Al-Fayomi, Kholoud; Nimer, Nisreen; Malkawi, Amer; Al-Zu Bi, Rana; Agraib, Lana; Athamneh, Imad; Hijjawi, Nawal

    2016-12-01

    To measure the abdominal subcutaneous fat (SF) and visceral fat (VF) volumes using high-field magnetic resonance imaging (MRI) and to investigate their association with selected anthropometric and biochemical parameters among obese and nonobese apparently healthy participants. A cross-sectional study was conducted by recruiting 167 healthy participants. Abdominal scans were acquired at 3T MRI, and the SF and VF were segmented and their volumes were calculated. Selected anthropometric and biochemical measurements were also determined. A significant difference (P abdominal fat volumes, leptin, resistin, adiponectin and waist circumference. Waist circumferences were measured by tape and MRI. Findings revealed that MRI-measured fat volumes were different between males and females and had a significant (P fat volumes were found to correlate moderately with interleukin-6 and weakly with cholesterol, serum triglyceride and low-density lipoprotein. Except for cholesterol, all measured biochemical variables and abdominal fat volumes in the current study were significantly associated with body mass index. All anthropometric and biochemical parameters showed weak-to-strong associations with the MRI-measured fat volumes. Abdominal fat distribution was different between males and females and their correlations with some lipid profiles were found to be sex dependent. These findings revealed that MRI can be used as an alternative tool for obesity assessment. Copyright © 2016 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

  17. Considerations on a Cost Model for High-Field Dipole Arc Magnets for FCC

    CERN Document Server

    AUTHOR|(CDS)2078700; Durante, Maria; Lorin, Clement; Martinez, Teresa; Ruuskanen, Janne; Salmi, Tiina; Sorbi, Massimo; Tommasini, Davide; Toral, Fernando

    2017-01-01

    In the frame of the European Circular Collider (EuroCirCol), a conceptual design study for a post-Large Hadron Collider (LHC) research infrastructure based on an energy-frontier 100 TeV circular hadron collider [1]–[3], a cost model for the high-field dipole arc magnets is being developed. The aim of the cost model in the initial design phase is to provide the basis for sound strategic decisions towards cost effective designs, in particular: (A) the technological choice of superconducting material and its cost, (B) the target performance of Nb3Sn superconductor, (C) the choice of operating temperature (D) the relevant design margins and their importance for cost, (E) the nature and extent of grading, and (F) the aperture’s influence on cost. Within the EuroCirCol study three design options for the high field dipole arc magnets are under study: cos − θ [4], block [5], and common-coil [6]. Here, in the advanced design phase, a cost model helps to (1) identify the cost drivers and feed-back this informati...

  18. Slotted cage resonator for high-field magnetic resonance imaging of rodents

    Energy Technology Data Exchange (ETDEWEB)

    Marrufo, O; Vasquez, F; Solis, S E; Rodriguez, A O, E-mail: arog@xanum.uam.mx [Departamento de Ingenieria Electrica, Universidad Autonoma Metropolitana Iztapalapa, Mexico, DF 09340 (Mexico)

    2011-04-20

    A variation of the high-frequency cavity resonator coil was experimentally developed according to the theoretical frame proposed by Mansfield in 1990. Circular slots were used instead of cavities to form the coil endplates and it was called the slotted cage resonator coil. The theoretical principles were validated via a coil equivalent circuit and also experimentally with a coil prototype. The radio frequency magnetic field, B1, produced by several coil configurations was numerically simulated using the finite-element approach to investigate their performances. A transceiver coil, 8 cm long and 7.6 cm in diameter, and composed of 4 circular slots with a 15 mm diameter on both endplates, was built to operate at 300 MHz and quadrature driven. Experimental results obtained with the slotted cage resonator coil were presented and showed very good agreement with the theoretical expectations for the resonant frequency as a function of the coil dimensions and slots. A standard birdcage coil was also built for performance comparison purposes. Phantom images were then acquired to compute the signal-to-noise ratio of both coils showing an important improvement of the slotted cage coil over the birdcage coil. The whole-body images of the mouse were also obtained showing high-quality images. Volume resonator coils can be reliably built following the physical principles of the cavity resonator design for high-field magnetic resonance imaging applications of rodents.

  19. Development of High-Field Permanent Magnetic Circuits for NMRI/MRI and Imaging on Mice

    Directory of Open Access Journals (Sweden)

    Guangxin Wang

    2016-01-01

    Full Text Available The high-field permanent magnetic circuits of 1.2 T and 1.5 T with novel magnetic focusing and curved-surface correction are developed. The permanent magnetic circuit comprises a magnetic yoke, main magnetic steel, nonspherical curved-surface magnetic poles, plugging magnetic steel, and side magnetic steel. In this work, a novel shimming method is proposed for the effective correction of base magnetic field (B0 inhomogeneities, which is based on passive shimming on the telescope aspheric cutting, grinding, and fine processing technology of the nonspherical curved-surface magnetic poles and active shimming adding higher-order gradient coils. Meanwhile, the magnetic resonance imaging dedicated alloy with high-saturation magnetic field induction intensity and high electrical resistivity is developed, and nonspherical curved-surface magnetic poles which are made of the dedicated alloy have very good anti-eddy-current effect. In addition, the large temperature coefficient problem of permanent magnet can be effectively controlled by using a high quality temperature controller and deuterium external locking technique. Combining our patents such as gradient coil, RF coil, and integration computer software, two kinds of small animal Micro-MRI instruments are developed, by which the high quality MRI images of mice were obtained.

  20. High-field superconducting window-frame beam-transport magnets

    International Nuclear Information System (INIS)

    Allinger, J.; Carroll, A.; Danby, G.; DeVito, B.; Jackson, J.; Leonhardt, W.; Prodell, A.; Skarita, J.

    1982-01-01

    The window-frame design for high-field superconducting beam-transport magnets was first applied to two, 2-m-long, 4-T modules of an 8 0 bending magent which has operated for nine years in the primary proton beam line at the Brookhaven National Laboratory Alternating Gradient Synchrotron (AGS). The design of two 1.5-m long, 7.6-cm cold-bore superconducting windowframe magnets, described in this paper, intended for the external proton beam transport system at the AGS incorporated evolutionary changes. These magnets generated a maximum aperture field of 6.8 T with a peak field in the dipole coil of 7.1 T. Measured fields are very accurate and are compared to values calculated using the computer programs LINDA and POISSON. Results of quench-propagation studies demonstrate the excellent thermal stability of the magnets. The magnets quench safely without energy extraction at a maximum current density, J = 130 kA/cm 2 in the superconductor, corresponding to J = 57.6 kA/cm 2 overall the conductor at B = 6.7 T

  1. High-field specific heats of A15 V3Si and Nb3Sn

    Science.gov (United States)

    Stewart, G. R.; Brandt, B. L.

    1984-04-01

    In order to further understand the anomalous behavior of the specific heat of Nb3Sn in an 18-T magnetic field discovered by Stewart, Cort, and Webb [Phys. Rev. B 24, 3841 (1981)], we have performed specific-heat measurements on a different sample of Nb3Sn at lower fields both in the normal and mixed states, as well as measurement to 19 T on both transforming and nontransforming V3Si. The high-field data for V3Si indicate that this material behaves quite normally, and that γtransJunod and Muller [Solid State Commun. 36, 721 (1980)]. Nb3Sn, however, remains anomalous, with both the same "kink" in the normal-state field data as observed by Stewart, Cort, and Webb (although at a slightly higher temperature) and unusual mixed-state behavior. The mixed-state specific heat of the V3Si samples is as expected, based on earlier work on the mixed-state specific heat of V and Nb.

  2. The value of conventional high-field MRI in MS in the light of the McDonald criteria: a literature review.

    Science.gov (United States)

    Lunde Larsen, L S; Larsson, H B W; Frederiksen, J L

    2010-09-01

    The diagnosis of MS is based on the revised McDonald criteria and is multidisciplinary. Both clinical and paraclinical measures are included. High-field magnetic resonance imaging (MRI) is becoming increasingly available and it is therefore necessary to clarify possible advantages of high-field MRI in MS. The aim of this paper was to review MRI studies in MS where a direct comparison of MRI at high field with MRI at 1-1.5 tesla (T) had been performed. The studies evaluated were found by searching Pubmed with relevant terms including MeSH terms. The reviewed studies all found the conspicuity of lesions to be better at high field. Of the seven studies, six found more and bigger lesions at high-field MRI. In the present paper, the relevant MRI sequences are evaluated in detail. The detection of more lesions at high-field strength did not seem to lead to earlier diagnosis of clinically definite multiple sclerosis. Further larger studies of patients with clinically isolated syndromes are needed to settle the question of a diagnostic consequence of high-field imaging in MS. We suggest that the next revision of the McDonald diagnostic criteria include a recommendation of field strength.

  3. Magnetic resonance imaging of hindfoot involvement in patients with spondyloarthritides: Comparison of low-field and high-field strength units

    Energy Technology Data Exchange (ETDEWEB)

    Eshed, Iris; Althoff, Christian E. [Department of Radiology, Charite Medical School, Berlin (Germany); Feist, Eugen [Department of Rheumatology and Clinical Immunology, Charite Medical School, Berlin (Germany); Minden, Kirsten [Helios Clinics, 2nd Children' s Hospital Berlin-Buch, Rheumatology Unit, Berlin (Germany); German Rheumatology Research Center, Berlin (Germany); Schink, Tania [Department of Medical Biometry, Charite Medical School, Berlin (Germany); Hamm, Bernd [Department of Radiology, Charite Medical School, Berlin (Germany); Hermann, Kay-Geert A. [Department of Radiology, Charite Medical School, Berlin (Germany)], E-mail: kgh@charite.de

    2008-01-15

    Objective: To compare MRI evaluation of a painful hindfoot of patients with spondyloarthritides (SpA) on low-field (0.2 T) versus high-field (1.5 T) MRI. Materials and methods: Patients with SpA and hindfoot pain were randomly referred to either high-field or low-field MRI. Twenty-seven patients were evaluated (male/female: 17:10; mean age: 39 {+-} 1.4 years). Fifteen patients were examined by low-field and 12 by high-field MRI. Two patients (evaluated by high-field MRI) were excluded. Images were separately read by two radiologists who later reached a consensus. In each patient the prevalence of erosions, fluid, synovitis or bone marrow edema of the hindfoot joints, tendinosis or tenosynovitis of tendons, enthesitis of the plantar fascia and Achilles tendon and retrocalcaneal bursitis were recorded. Clinical and demographic parameters were comparable between both groups. Results: MRI evaluation of joints and tendons of the hindfoot revealed no significant differences in patients with SpA groups for all parameters. Analyzing all joints or tendons together, there was no statistically significant difference between the two groups. Conclusion: Low-field and high-field MRI provide comparable information for evaluation of inflammatory hindfoot involvement. Thus, low-field MRI can be considered as a reliable diagnostic tool for the detection of hindfoot abnormalities in SpA patients.

  4. Magnetic resonance imaging of hindfoot involvement in patients with spondyloarthritides: Comparison of low-field and high-field strength units

    International Nuclear Information System (INIS)

    Eshed, Iris; Althoff, Christian E.; Feist, Eugen; Minden, Kirsten; Schink, Tania; Hamm, Bernd; Hermann, Kay-Geert A.

    2008-01-01

    Objective: To compare MRI evaluation of a painful hindfoot of patients with spondyloarthritides (SpA) on low-field (0.2 T) versus high-field (1.5 T) MRI. Materials and methods: Patients with SpA and hindfoot pain were randomly referred to either high-field or low-field MRI. Twenty-seven patients were evaluated (male/female: 17:10; mean age: 39 ± 1.4 years). Fifteen patients were examined by low-field and 12 by high-field MRI. Two patients (evaluated by high-field MRI) were excluded. Images were separately read by two radiologists who later reached a consensus. In each patient the prevalence of erosions, fluid, synovitis or bone marrow edema of the hindfoot joints, tendinosis or tenosynovitis of tendons, enthesitis of the plantar fascia and Achilles tendon and retrocalcaneal bursitis were recorded. Clinical and demographic parameters were comparable between both groups. Results: MRI evaluation of joints and tendons of the hindfoot revealed no significant differences in patients with SpA groups for all parameters. Analyzing all joints or tendons together, there was no statistically significant difference between the two groups. Conclusion: Low-field and high-field MRI provide comparable information for evaluation of inflammatory hindfoot involvement. Thus, low-field MRI can be considered as a reliable diagnostic tool for the detection of hindfoot abnormalities in SpA patients

  5. Carl Rogers' Responses in the 17th Session with Miss Mun: Comments from a Process-Experiential and Psychoanalytic Perspective.

    Science.gov (United States)

    Gundrum, Monica; Lietaer, Germain; Van Hees-Matthijssen, Christiane

    1999-01-01

    Reproduces the transcript of one of Carl Rogers' filmed therapeutic sessions with Miss Mun, followed by an empirical and clinical-qualitative analysis. Five task oriented processes are examined in detail: the evocative impact of reflections of feeling; empathic affirmation as a marker of intense vulnerability; focusing reflections; working with…

  6. Continuity and Discontinuity in Casabella and Spazio. The 1950's architecture magazines directed by Luigi Moretti and Ernesto Nathan Rogers

    Directory of Open Access Journals (Sweden)

    Orsina Simona Pierini

    2016-05-01

    However, the impact is quite different: with Luigi Moretti, his iconic  architecture, while rarely published in the journal, nonetheless remains in  the back of our minds. In contrast, Rogers, ever the educator, seems to  have entrusted the pencil to his young, up-and-coming contributors.

  7. Micrometeorological data for energy-budget studies near Rogers Spring, Ash Meadows National Wildlife Refuge, Nye County, Nevada, 1994

    International Nuclear Information System (INIS)

    Nichols, W.D.; Rapp, T.R.

    1996-01-01

    The data were collected at two sites near Rogers Spring for use in energy-budget studies beginning in 1994. The data collected at each site included net radiation, air temperature at two heights, dew- point temperature at two heights, windspeed at two heights, soil heat flux, and soil temperature in the interval between the land surface and the buried heat-flux plates

  8. Specialized hybrid learners resolve Rogers' paradox about the adaptive value of social learning.

    Science.gov (United States)

    Kharratzadeh, Milad; Montrey, Marcel; Metz, Alex; Shultz, Thomas R

    2017-02-07

    Culture is considered an evolutionary adaptation that enhances reproductive fitness. A common explanation is that social learning, the learning mechanism underlying cultural transmission, enhances mean fitness by avoiding the costs of individual learning. This explanation was famously contradicted by Rogers (1988), who used a simple mathematical model to show that cheap social learning can invade a population without raising its mean fitness. He concluded that some crucial factor remained unaccounted for, which would reverse this surprising result. Here we extend this model to include a more complex environment and limited resources, where individuals cannot reliably learn everything about the environment on their own. Under such conditions, cheap social learning evolves and enhances mean fitness, via hybrid learners capable of specializing their individual learning. We then show that while spatial or social constraints hinder the evolution of hybrid learners, a novel social learning strategy, complementary copying, can mitigate these effects. Copyright © 2016 Elsevier Ltd. All rights reserved.

  9. The necessary and sufficient conditions of therapeutic personality change: Reactions to Rogers' 1957 article.

    Science.gov (United States)

    Samstag, Lisa Wallner

    2007-09-01

    Carl Rogers' article (see record 2007-14639-002) on the necessary and sufficient conditions for personality change has had a significant impact on the field of psychotherapy and psychotherapy research. He emphasized the client as arbiter of his or her own subjective experience and tested his hypothesized therapist-offered conditions of change using recorded sessions. This aided in demystifying the therapeutic process and led to a radical shift in the listening stance of the therapist. I briefly outline my views regarding the influence of the ideas presented in this work, describe the intellectual and cultural context of the times, and discuss a number of ways in which the therapist-offered conditions for psychological transformation are neither necessary nor sufficient. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  10. Widening the clinical spectrum of Pitt-Rogers-Danks/Wolf-Hirschhorn syndromes

    Directory of Open Access Journals (Sweden)

    Juliana F. Mazzeu

    2007-03-01

    Full Text Available Chromosomal rearrangements involving partial deletion of the short arm of chromosome 4 and partial duplication of the short arm of chromosome 8 have been described both in Pitt-Rogers-Danks syndrome (PRDS and Wolf-Hirschhorn syndrome (WHS, the former being considered a milder phenotype of the latter. We describe a patient with partial deletion of chromosome 4 and partial duplication of chromosome 8 documented by array-comparative genomic hybridization (Array-CGH. In addition to the typical features of PRDS, the patient exhibited some clinical signs (genital hypoplasia, radioulnar synostosis and mesomelic limb shortness infrequently, or never previously, reported in PRDS. These findings broaden the spectrum of anomalies generally associated with these syndromes.

  11. Entre a potência e o poder: Walter Benjamin e Roger Caillois

    Directory of Open Access Journals (Sweden)

    Susana Scramim

    2009-01-01

    Full Text Available http://dx.doi.org/10.5007/1984-784X.2009v9n14p101 A escrita fragmentária empenhada por Benjamim em "Seqüência em Ibiza" e os aforismos do Oráculo Manual y Arte de Prudencia de Gracián  indicam o esboço de uma reflexão sobre o poder na obra de Benjamin a qual se materializará como limiar entre a forma e o informe, entre a autonomia e auto-implicação, entre a obra e a des-obra. Essa reflexão se torna aguda  no impacto provocado em Benjamin pela a leitura  de L´ariditè que Roger Caillois publica juntamente com outros ensaios, em 1938, no Colégio de Sociologia em Paris.

  12. Diálogo "interessantíssimo": Roger Bastide e o Modernismo

    Directory of Open Access Journals (Sweden)

    Peixoto Fernanda

    1999-01-01

    Full Text Available O objetivo deste artigo é examinar as várias faces do diálogo travado entre Roger Bastide e os modernistas, destacando Mário de Andrade como interlocutor privilegiado. Seguindo um roteiro de coloração modernista, Bastide se aproxima do país - das artes, da literatura, do folclore -, revê as leituras de Mário de Andrade sobre o barroco e o Aleijadinho e, fundamentalmente, compartilha as formulações do líder modernista sobre a "autenticidade" da cultura brasileira. Procura-se argumentar que através da interlocução com o modernismo Bastide define o seu lugar como intérprete estrangeiro da sociedade e da cultura brasileiras.

  13. Nutritional and fatty acid profiles of sun-dried edible black ants (Polyrhachis vicina Roger

    Directory of Open Access Journals (Sweden)

    Duo Li

    2010-03-01

    Full Text Available Determination of the nutritional composition of sun-dried edible black ants (Polyrhachis vicina Roger cultivated in Zhejiang and Guizhou Provinces, China, was carried out. The Zhejiang and Guizhou ants contained 31.5% and 41.5% protein, 15.7% and 15.9% lipid, and 25.4% and 26.4% fibre respectively. Monounsaturated fatty acids were the most predominant fatty acids (71.472.7% of total fatty acids found in both ant samples, followed by saturated fatty acids (23.825.5% and polyunsaturated fatty acids (3.13.7%. A significant amount of n-3 fatty acids was detected: 87.4 mg/100g and 145.6 mg/100g in Zhejiang and Guizhou ants respectively. Phosphorus, iron and calcium were the main minerals found in the ant samples. A small amount of selenium was also found.

  14. Technical Note: Experimental results from a prototype high-field inline MRI-linac

    Energy Technology Data Exchange (ETDEWEB)

    Liney, G. P., E-mail: gary.liney@sswahs.nsw.gov.au [Department of Medical Physics, Ingham Institute for Applied Medical Research, Liverpool NSW 2170 (Australia); Dong, B.; Zhang, K. [Department of Medical Physics, Ingham Institute for Applied Medical Research, Liverpool NSW 2170 (Australia); and others

    2016-09-15

    Purpose: The pursuit of real-time image guided radiotherapy using optimal tissue contrast has seen the development of several hybrid magnetic resonance imaging (MRI)-treatment systems, high field and low field, and inline and perpendicular configurations. As part of a new MRI-linac program, an MRI scanner was integrated with a linear accelerator to enable investigations of a coupled inline MRI-linac system. This work describes results from a prototype experimental system to demonstrate the feasibility of a high field inline MR-linac. Methods: The magnet is a 1.5 T MRI system (Sonata, Siemens Healthcare) was located in a purpose built radiofrequency (RF) cage enabling shielding from and close proximity to a linear accelerator with inline (and future perpendicular) orientation. A portable linear accelerator (Linatron, Varian) was installed together with a multileaf collimator (Millennium, Varian) to provide dynamic field collimation and the whole assembly built onto a stainless-steel rail system. A series of MRI-linac experiments was performed to investigate (1) image quality with beam on measured using a macropodine (kangaroo) ex vivo phantom; (2) the noise as a function of beam state measured using a 6-channel surface coil array; and (3) electron contamination effects measured using Gafchromic film and an electronic portal imaging device (EPID). Results: (1) Image quality was unaffected by the radiation beam with the macropodine phantom image with the beam on being almost identical to the image with the beam off. (2) Noise measured with a surface RF coil produced a 25% elevation of background intensity when the radiation beam was on. (3) Film and EPID measurements demonstrated electron focusing occurring along the centerline of the magnet axis. Conclusions: A proof-of-concept high-field MRI-linac has been built and experimentally characterized. This system has allowed us to establish the efficacy of a high field inline MRI-linac and study a number of the technical

  15. High-field MRI and mercury release from dental amalgam fillings.

    Science.gov (United States)

    Mortazavi, S M J; Neghab, M; Anoosheh, S M H; Bahaeddini, N; Mortazavi, G; Neghab, P; Rajaeifard, A

    2014-04-01

    Mercury is among the most toxic nonradioactive elements which may cause toxicity even at low doses. Some studies showed release of mercury from dental amalgam fillings in individuals who used mobile phone. This study was conducted to assess the effect of high-field MRI on mercury release from dental amalgam filling. We studied two groups of students with identical tooth decays requiring a similar pattern of restorative dentistry. They were exposed to a magnetic flux density of 1.5 T produced by a MRI machine. 16 otherwise healthy students with identical dental decay participated in this study. They underwent similar restorative dentistry procedures and randomly divided into two groups of MRI-exposed and control arms. Urinary concentrations of mercury in the control subjects were measured before (hour 0) and 48 and 72 hrs after amalgam restoration, using cold vapor atomic absorption spectrometry. Urinary concentrations of mercury in exposed individuals were determined before (hour 0), and 24, 48, 72 and 96 hrs after amalgam restoration. Unlike control subjects, they underwent conventional brain MRI (15 min, 99 slices), 24 hrs after amalgam restoration. The mean±SD urinary mercury levels in MRI-exposed individuals increased linearly from a baseline value of 20.70±17.96 to 24.83±22.91 μg/L 72 hrs after MRI. In the control group, the concentration decreased linearly from 20.70±19.77 to 16.14±20.05 μg/L. The difference between urinary mercury in the exposed and control group, 72 hrs after MRI (96 h after restoration),was significant (p=0.046). These findings provide further support for the noxious effect of MRI (exposure to strong magnetic field)and release of mercury from dental amalgam fillings.

  16. Acoustic pressure waves induced in human heads by RF pulses from high-field MRI scanners.

    Science.gov (United States)

    Lin, James C; Wang, Zhangwei

    2010-04-01

    The current evolution toward greater image resolution from magnetic resonance image (MRI) scanners has prompted the exploration of higher strength magnetic fields and use of higher levels of radio frequencies (RFs). Auditory perception of RF pulses by humans has been reported during MRI with head coils. It has shown that the mechanism of interaction for the auditory effect is caused by an RF pulse-induced thermoelastic pressure wave inside the head. We report a computational study of the intensity and frequency of thermoelastic pressure waves generated by RF pulses in the human head inside high-field MRI and clinical scanners. The U.S. Food and Drug Administration (U.S. FDA) guides limit the local specific absorption rate (SAR) in the body-including the head-to 8 W kg(-1). We present results as functions of SAR and show that for a given SAR the peak acoustic pressures generated in the anatomic head model were essentially the same at 64, 300, and 400 MHz (1.5, 7.0, and 9.4 T). Pressures generated in the anatomic head are comparable to the threshold pressure of 20 mPa for sound perception by humans at the cochlea for 4 W kg(-1). Moreover, results indicate that the peak acoustic pressure in the brain is only 2 to 3 times the auditory threshold at the U.S. FDA guideline of 8 W kg(-1). Even at a high SAR of 20 W kg(-1), where the acoustic pressure in the brain could be more than 7 times the auditory threshold, the sound pressure levels would not be more than 17 db above threshold of perception at the cochlea.

  17. High-Field MRI and Mercury Release from Dental Amalgam Fillings

    Directory of Open Access Journals (Sweden)

    SMJ Mortazavi

    2014-04-01

    Full Text Available Mercury is among the most toxic nonradioactive elements which may cause toxicity even at low doses. Some studies showed release of mercury from dental amalgam fillings in individuals who used mobile phone. This study was conducted to assess the effect of high-field MRI on mercury release from dental amalgam filling. We studied two groups of students with identical tooth decays requiring a similar pattern of restorative dentistry. They were exposed to a magnetic flux density of 1.5 T produced by a MRI machine. 16 otherwise healthy students with identical dental decay participated in this study. They underwent similar restorative dentistry procedures and randomly divided into two groups of MRI-exposed and control arms. Urinary concentrations of mercury in the control subjects were measured before (hour 0 and 48 and 72 hrs after amalgam restoration, using cold vapor atomic absorption spectrometry. Urinary concentrations of mercury in exposed individuals were determined before (hour 0, and 24, 48, 72 and 96 hrs after amalgam restoration. Unlike control subjects, they underwent conventional brain MRI (15 min, 99 slices, 24 hrs after amalgam restoration. The mean±SD urinary mercury levels in MRI-exposed individuals increased linearly from a baseline value of 20.70±17.96 to 24.83±22.91 μg/L 72 hrs after MRI. In the control group, the concentration decreased linearly from 20.70±19.77 to 16.14±20.05 μg/L. The difference between urinary mercury in the exposed and control group, 72 hrs after MRI (96 h after restoration,was significant (p=0.046. These findings provide further support for the noxious effect of MRI (exposure to strong magnetic fieldand release of mercury from dental amalgam fillings.

  18. A viable dipole magnet concept with REBCO CORC® wires and further development needs for high-field magnet applications

    Science.gov (United States)

    Wang, Xiaorong; Caspi, Shlomo; Dietderich, Daniel R.; Ghiorso, William B.; Gourlay, Stephen A.; Higley, Hugh C.; Lin, Andy; Prestemon, Soren O.; van der Laan, Danko; Weiss, Jeremy D.

    2018-04-01

    REBCO coated conductors maintain a high engineering current density above 16 T at 4.2 K. That fact will significantly impact markets of various magnet applications including high-field magnets for high-energy physics and fusion reactors. One of the main challenges for the high-field accelerator magnet is the use of multi-tape REBCO cables with high engineering current density in magnet development. Several approaches developing high-field accelerator magnets using REBCO cables are demonstrated. In this paper, we introduce an alternative concept based on the canted cos θ (CCT) magnet design using conductor on round core (CORC®) wires that are wound from multiple REBCO tapes with a Cu core. We report the development and test of double-layer three-turn CCT dipole magnets using CORC® wires at 77 and 4.2 K. The scalability of the CCT design allowed us to effectively develop and demonstrate important magnet technology features such as coil design, winding, joints and testing with minimum conductor lengths. The test results showed that the CCT dipole magnet using CORC® wires was a viable option in developing a REBCO accelerator magnet. One of the critical development needs is to increase the engineering current density of the 3.7 mm diameter CORC® wire to 540 A mm-2 at 21 T, 4.2 K and to reduce the bending radius to 15 mm. This would enable a compact REBCO dipole insert magnet to generate a 5 T field in a background field of 16 T at 4.2 K.

  19. Design of shared instruments to utilize simulated gravities generated by a large-gradient, high-field superconducting magnet.

    Science.gov (United States)

    Wang, Y; Yin, D C; Liu, Y M; Shi, J Z; Lu, H M; Shi, Z H; Qian, A R; Shang, P

    2011-03-01

    A high-field superconducting magnet can provide both high-magnetic fields and large-field gradients, which can be used as a special environment for research or practical applications in materials processing, life science studies, physical and chemical reactions, etc. To make full use of a superconducting magnet, shared instruments (the operating platform, sample holders, temperature controller, and observation system) must be prepared as prerequisites. This paper introduces the design of a set of sample holders and a temperature controller in detail with an emphasis on validating the performance of the force and temperature sensors in the high-magnetic field.

  20. Author Details

    African Journals Online (AJOL)

    PROMOTING ACCESS TO AFRICAN RESEARCH. AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL · RESOURCES. Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads.

  1. Author Correction

    DEFF Research Database (Denmark)

    Gröbner, Susanne N; Worst, Barbara C; Weischenfeldt, Joachim

    2018-01-01

    In this Article, author Benedikt Brors was erroneously associated with affiliation number '8' (Department of Developmental Neurobiology, St Jude Children's Research Hospital, Memphis, Tennessee, USA); the author's two other affiliations (affiliations '3' and '7', both at the German Cancer Researc...

  2. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... An algorithm to retrieve Land Surface Temperature using Landsat-8 Dataset Abstract PDF. ISSN: 2225-8531.

  3. Author's capabilities in author indexing

    International Nuclear Information System (INIS)

    Ooi, Shoichi

    1988-01-01

    The purpose of this paper is to provide a author capability of current author indexing practices in journal literature indexing practices in 'Journal of Nuclear Science and Technology of Japan'. This Journal employed keywords freely assigned by author and not taken from INIS Thesaurus or other vocabulary list. Author examined 413 literatures, comparing keywords assigned by the literatures' authors with descriptor's (ATOMINDEX) assigned by an experienced professional indexer. The results of the comparisons showed that the average set of terms assigned by author included about 70% of all the terms assigned to the same literature by the professional indexer. Authors eventually would contribute, for the most effective point to create reference to information is at the time of its generation. Consequently, it may be possible to transfer them easily to descriptors in every secondary information system. (author)

  4. Vol. 34 - Optimization of quench protection heater performance in high-field accelerator magnets through computational and experimental analysis

    CERN Document Server

    Salmi, Tiina

    2016-01-01

    Superconducting accelerator magnets with increasingly hi gh magnetic fields are being designed to improve the performance of the Large Hadron Collider (LHC) at CERN. One of the technical challenges is the magnet quench p rotection, i.e., preventing damage in the case of an unexpected loss of superc onductivity and the heat generation related to that. Traditionally this is d one by disconnecting the magnet current supply and using so-called protection he aters. The heaters suppress the superconducting state across a large fraction of the winding thus leading to a uniform dissipation of the stored energy. Preli minary studies suggested that the high-field Nb 3 Sn magnets under development for the LHC luminosity upgrade (HiLumi) could not be reliably protected using the existing heaters. In this thesis work I analyzed in detail the present state-of-the-art protection heater technology, aiming to optimize its perfo rmance and evaluate the prospects in high-field magnet protection. The heater efficiency analyses ...

  5. Intracellular bimodal nanoparticles based on quantum dots for high-field MRI at 21.1 T.

    Science.gov (United States)

    Rosenberg, Jens T; Kogot, Joshua M; Lovingood, Derek D; Strouse, Geoffrey F; Grant, Samuel C

    2010-09-01

    Multimodal, biocompatible contrast agents for high magnetic field applications represent a new class of nanomaterials with significant potential for tracking of fluorescence and MR in vitro and vivo. Optimized for high-field MR applications-including biomedical imaging at 21.1 T, the highest magnetic field available for MRI-these nanoparticles capitalize on the improved performance of chelated Dy(3+) with increasing magnetic field coupled to a noncytotoxic Indium Phosphide/Zinc Sulfide (InP/ZnS) quantum dot that provides fluorescence detection, MR responsiveness, and payload delivery. By surface modifying the quantum dot with a cell-penetrating peptide sequence coupled to an MR contrast agent, the bimodal nanomaterial functions as a self-transfecting high-field MR/optical contrast agent for nonspecific intracellular labeling. Fluorescent images confirm sequestration in perinuclear vesicles of labeled cells, with no apparent cytotoxicity. These techniques can be extended to impart cell selectivity or act as a delivery vehicle for genetic or pharmaceutical interventions. 2010 Wiley-Liss, Inc.

  6. Study of crude and plasma-treated heavy oil by low- and high-field 1H NMR

    Energy Technology Data Exchange (ETDEWEB)

    Honorato, Hercilio D. A.; Silva, Renzo C.; Junior, Valdemar Lacerda; Castro, Eustaquio V. R. de; Freitas, Jair C. C. [Research and Methodology Development Laboratory for Crude Oil Analysis - LabPetro, Department of Chemistry, Federal University of Espirito Santo (Brazil)], email: jairccfreitas@yahoo.com.br; Piumbini, Cleiton K.; Cunha, Alfredo G.; Emmerich, Francisco G. [Department of Physics, Federal University of Espirito Santo (Brazil); Souza, Andre A. de; Bonagamba, Tito J. [Institute of Physics of Sao Carlos, University of Sao Paulo (Brazil)

    2010-07-01

    This document is intended to describe the combination of H low-field NMR and thermogravimetry (TG), rheological measurement and H high-field NMR to assess the physical and chemical changes that can occur in a heavy crude oil from treatment in a plasma reactor. This research was done using a heavy crude oil, API gravity of 10.1, which was treated in a double dielectric barrier (DDB) plasma reactor using different plasma gases: natural gas (NG), C02 or H2. The low-field HNMR experiments were conducted in a Maran Ultra spectrometer, from Oxford Instruments, at 27.5? C. After rheological analysis, a reduction in the viscosity of the plasma-treated oils in comparison to that of the crude oil was observed. Finally, it was confirmed that the use of H low-field NMR relaxometry and H high-field NMR spectroscopy allowed a separate analysis of the effects of the plasma treatment on the water and oil fractions to be made.

  7. High-field magnetoconductance in La-Sr manganites of FM and AFM ground states

    Science.gov (United States)

    Jirák, Zdeněk; Kaman, Ondřej; Knížek, Karel; Levinský, Petr; Míšek, Martin; Veverka, Pavel; Hejtmánek, Jiří

    2018-06-01

    Large-grain La1-xSrxMnO3 ceramic samples of compositions x = 0.45 and 0.55, representing the ferromagnetic (FM) and A-type antiferromagnetic (AFM) ground states, were produced via classical sintering at 1500 °C of cold-pressed sol-gel prepared single-phase nanoparticles. Using the same precursors, nanogranular forms of both manganite ceramics were prepared by fast spark plasma sintering at low temperature of 900 °C, which limits the growth of crystal grains. The magnetotransport of both the bulk and nanogranular forms was investigated in a broad range of magnetic fields up to 130 kOe and analyzed on the basis of detailed magnetic measurements. Both the large-grain and nanogranular systems with x = 0.45, possessing a pure FM state with similar Curie tempereature TC ≈ 345 K), show nearly the same conductivity enhancement in external fields when expressed relatively to the zero-field values. This positive magnetoconductance (MC) can be separated into two terms: (i) the hysteretic low-field MC that reflects the field-induced orientation of magnetic moments of individual grains, and (ii) the high-field MC that depends linearly on external field. In the case of large-grain ceramics with x = 0.55, a partially ordered FM state formed below TC = 264 K is replaced by pure A-type AFM ground state below 204 K. This A-type AFM state is characterized by positive magnetoconductance that is essentially of quadratic dependence on external field in the investigated range up to 130 kOe. On contrary, the nanogranular product with x = 0.55 exhibits a mixed FM/AFM state at low temperatures, and, as a consequence, its magnetotransport combines the features of FM and A-type AFM systems, in which the quadratic term is much enhanced and clearly dominates at high fields. For interpretation of observed behaviors, the theory of grain-boundary tunneling is revisited.

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    African Journals Online (AJOL)

    Visemih, Willium Muffee. Vol 9, No 2 (2001) - Articles The Role Of Internal Control In The Rural Development Of Cameroon: The Case Of The South West Development Authority (Soweda) Abstract. ISSN: 0856-6372. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

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    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Abstract PDF · Vol 3, No 6 (2011) - Articles Mixed convection flow and heat transfer in a vertical wavy channel containing porous and fluid layer with traveling thermal waves. Abstract PDF · Vol 3, No 8 ...

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    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Singh, J. Vol 3, No 2 (2011) - Articles Plane waves in a rotating generalized thermo-elastic solid with voids. Abstract PDF. ISSN: 2141-2839. AJOL African Journals Online. HOW TO USE AJOL.

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  1. Person-Centered Expressive Arts: An Alternative Path to Counseling and Education. An interview with Natalie Rogers

    Directory of Open Access Journals (Sweden)

    Laura Guadiana Martínez

    2003-11-01

    Full Text Available In this interview, Natalie Rogers PhD, expounds on how art and expression serve personal and group growth in Person Centered Expressive Arts Therapy. Adding to the legacy of her father Carl Rogers, creator of the Person Centered Approach, she describes the interweaving of her experiences as a therapist and woman, and how she afforded extra room in the process for intuition, creativity, emotions and the fascinating exploration of the human experience. Using modeling, sculpting, dance, painting, music, etc. she created a model which furthers the person’s genuine expression and self knowledge. She sketches a profile of a facilitator who takes special care in creating an ambience where s/he not only does not judge the work, person, experience or results, but is on the contrary, empathetic and acceptant of the person and her experiences. Lastly, she discusses the applications of this approach to traditional educational settings, as well as some of the key training issues.

  2. Estimating the Permittivity of Rogers 4003C Substrate at Low Frequencies for Application in a Superdirective First-Order Probe for SNF Measurements

    DEFF Research Database (Denmark)

    Kim, Oleksiy S.

    2016-01-01

    The bulk permittivity of Rogers 4003C substrate is estimated in the lower UHF frequency band by comparing the simulated and measured return loss for a bandpass filter based on a coplanar waveguide and a capacitively loaded loop. The obtained value, which deviates from that specified by Rogers at ...... GHz, is subsequently utilized for accurate design of a new light-weight superdirective first-order probe for spherical near-field (SNF) antenna measurements at low frequencies.......The bulk permittivity of Rogers 4003C substrate is estimated in the lower UHF frequency band by comparing the simulated and measured return loss for a bandpass filter based on a coplanar waveguide and a capacitively loaded loop. The obtained value, which deviates from that specified by Rogers at 10...

  3. Processed CTD and Water Sample Data from Research Vessel Roger Revelle, Expedition RR1214, in the NE Pacific in November 2012 (NCEI Accession 0156228)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Expedition RR1214 by research vessel Roger Revelle was primarily a transit from French Polynesia to the US mainland. However, a small scientific program was...

  4. Authoring Tools

    Science.gov (United States)

    Treviranus, Jutta

    Authoring tools that are accessible and that enable authors to produce accessible Web content play a critical role in web accessibility. Widespread use of authoring tools that comply to the W3C Authoring Tool Accessibility Guidelines (ATAG) would ensure that even authors who are neither knowledgeable about nor particularly motivated to produce accessible content do so by default. The principles and techniques of ATAG are discussed. Some examples of accessible authoring tools are described including authoring tool content management components such as TinyMCE. Considerations for creating an accessible collaborative environment are also covered. As part of providing accessible content, the debate between system-based personal optimization and one universally accessible site configuration is presented. The issues and potential solutions to address the accessibility crisis presented by the advent of rich internet applications are outlined. This challenge must be met to ensure that a large segment of the population is able to participate in the move toward the web as a two-way communication mechanism.

  5. Application of high-field n.m.r. spectroscopy to the structural elucidation of natural products. The structure of rubellin, a noval bufadienolide glycoside from Urginea rubella

    International Nuclear Information System (INIS)

    Steyn, P.S.; Van Heerden, F.R.; Vleggaar, R.

    1986-01-01

    The structure and absolute configuration of rubellin, the major toxic principle of Urginea rubella, was determined by application of high-field 1 H n.m.r. spectroscopy. Rubellin proved to be a bufadienolide glycoside with the carbohydrate moiety doubly linked to the aglycone at the 2α- and 3β- positions

  6. Clients' narratives in psychotherapy and therapist's theoretical orientation : an exploratory analysis of Gloria's narratives with Rogers, Ellis and Perls

    OpenAIRE

    Moreira, Paulo; Gonçalves, Óscar F.; Matias, Carla

    2011-01-01

    The therapist’s theoretical orientation has been shown to impact the psychotherapy process. However, less is known about the extent to which the therapist’s orientation may impact clients’ narratives. This exploratory study analysed clients’ narrative production in psychoptherapy, when interacting with different therapists. The data consisted of transcripts of Shostrom’s videotaped therapy sessions between the client Gloria and the therapists Carl Rogers, Fritz Perls and Alb...

  7. Xabier Itçaina, Antoine Roger, Andy Smith, 2016, Varietals of Capitalism: A Political Economy of the Changing Wine Industry

    DEFF Research Database (Denmark)

    Ponte, Stefano

    2017-01-01

    Book review of Varietals of Capitalism: A Political Economy of the Changing Wine Industry by Xabier Itçaina, Antoine Roger, Andy Smith (2016). Ithaca and London, Cornell University Press, 266 p.......Book review of Varietals of Capitalism: A Political Economy of the Changing Wine Industry by Xabier Itçaina, Antoine Roger, Andy Smith (2016). Ithaca and London, Cornell University Press, 266 p....

  8. Author Details

    African Journals Online (AJOL)

    Seeking Behavior Towards Dysmenorrhea among Female Students of a Private University in Ogun State, Nigeria Abstract PDF. ISSN: 2320-2041. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  9. Author Details

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    Journal Home > Advanced Search > Author Details. Log in or Register ... (2013) - Articles Technical Note: Development of a Photobioreactor for Microalgae Culture ... Design, Construction and Evaluation of Motorized Okra Slicer Abstract PDF ...

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    Monitoring on Attitudes toward Internet Fraud among Undergraduate Students of Obafemi Awolowo University, Ile-Ife Abstract PDF. ISSN: 2070-0083. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    , Incubators and the Effects of a Spray-Disinfectant - A Quarterly Ammonium Compound Abstract. ISSN: 1116-1043. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    676X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER RESOURCES.

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    , happiness, hope and marital satisfaction among married people in Makurdi Metropolis, Nigeria Abstract. ISSN: 1596-9231. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    communication-style and parental neglect as predictors of aggressive tendencies among Secondary School adolescents. Abstract. ISSN: 0189-0263. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Journal Home > Advanced Search > Author Details. Log in or Register to ... No 1 (2014) - Articles Knowledge and Attitudes towards Basic Cardiopulmonary Resuscitation (CPR) among Community Nurses in Remo Area of Ogun State, Nigeria

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    Mental State Examination and the Montreal Cognitive Assessment Test in schizophrenia. Abstract PDF. ISSN: 2078-6786. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    ” Passages in the Context of Homosexuality Controversy: A Nigerian Perspective Abstract PDF. ISSN: 2141-7040. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    plant interactions and arthropod trophic structure in an endangered grassland in the Free State province, South Africa Abstract. ISSN: 1022-0119. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Journal Home > Advanced Search > Author Details. Log in or Register to get ... Optical bus of centralized relay protection and automation system of medium voltage switchgear for data collection and transmission. Abstract PDF. ISSN: 1112- ...

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    Journal Home > Advanced Search > Author Details. Log in or ... The prevention of mother-to-child HIV transmission programme and infant feeding practices ... Evaluation of a diagnostic algorithm for smear-negative pulmonary tuberculosis in ...

  1. Author Details

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    Journal Home > Advanced Search > Author Details ... Design and Implementation of an M/M/1 Queuing Model Algorithm and its Applicability in ... Vehicle Identification Technology to Intercept Small Arms and Ammunition on Nigeria Roads

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    509X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER RESOURCES.

  3. Roger Williams’s Unintentional Contribution to the Creation of American Capitalism

    Directory of Open Access Journals (Sweden)

    Casey Pratt

    2011-06-01

    Full Text Available This paper argues that in attempting to protect the religious life from the sullying influence of worldly affairs, Roger Williams participated, albeit unintentionally, in creating the economic conditions that led to the birth of American capitalism. Although Williams argued for a separation of church and state, he did so not in the interest of defending economic liberty, but instead to preserve the sanctity of the church against the frequent immorality that seemed to him required in worldly governance. Questions of pricing and wages, lending and interest—issues that would until Williams’s intervention have been handled by the church in terms of Aquinas’ just price theory—fell outside of the church’s purview according to the new model described by Williams. The result was the creation of an “amoral” public space where the effective separation between spiritual and material concerns led to a kind of free-by-default economic marketplace. This paper traces the development and inadvertent consequences of this essentially theological idea as it took shape in the colonial era.

  4. Roger Hayward and the Invention of the Two-Mirror Schmidt

    Science.gov (United States)

    Bell, T. E.

    2005-12-01

    Roger Hayward (1899-1979), now virtually unknown, was a multitalented architect, scientific illustrator, and optical inventor. Remembered primarily for illustrating Scientific American magazine's Amateur Scientist column between 1949 and 1974, he also illustrated more than a dozen textbooks in optics, physics, geology, oceanography, and chemistry, several of which became classics in their fields. He designed façades with astronomical themes for major buildings in Los Angeles, California, and sculpted mammoth, realistic models of the moon for Griffith Observatory, Adler Planetarium, and Disneyland. Throughout his life, he recreationally painted watercolors and oils that at least one critic likened to the work of John Singer Sargent. Hayward is least known as an optical designer, yet he made significant contributions to the DU spectrophotometer that established the multimillion-dollar company Beckman Instruments. During the pre-radar days of World War II at Mount Wilson Observatory, Hayward invented a classified Cassegrain version of the Schmidt telescope especially adapted for nighttime infrared aerial photography, plus extraordinarily simple machines that allowed inexperienced soldiers to grind, polish, and test accurate aspheric Schmidt correcting plates at speeds compatible with mass production - and later received U.S. patents for them all. This paper, drawn in part from unpublished letters between Hayward and Albert G. Ingalls, will feature little-known images of Hayward's work.

  5. Using Carl Rogers' person-centered model to explain interpersonal relationships at a school of nursing.

    Science.gov (United States)

    Bryan, Venise D; Lindo, Jascinth; Anderson-Johnson, Pauline; Weaver, Steve

    2015-01-01

    Faculty members are viewed as nurturers within the academic setting and may be able to influence students' behaviors through the formation of positive interpersonal relationships. Faculty members' attributes that best facilitated positive interpersonal relationships according to Carl Rogers' Person-Centered Model was studied. Students (n = 192) enrolled in a 3-year undergraduate nursing program in urban Jamaica were randomly selected to participate in this descriptive cross-sectional study. A 38-item questionnaire on interpersonal relationships with nursing faculty and students' perceptions of their teachers was utilized to collect data. Factor analysis was used to create factors of realness, prizing, and empathetic understanding. Multiple linear regression analysis on the interaction of the 3 factors and interpersonal relationship scores was performed while controlling for nursing students' study year and age. One hundred sixty-five students (mean age: 23.18 ± 4.51years; 99% female) responded. The regression model explained over 46% of the variance. Realness (β = 0.50, P < .001) was the only significant predictor of the interpersonal relationship scores assigned by the nursing students. Of the total number of respondents, 99 students (60%) reported satisfaction with the interpersonal relationships shared with faculty. Nursing students' perception of faculty members' realness appeared to be the most significant attribute in fostering positive interpersonal relationships. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Wall-crossing, Rogers dilogarithm, and the QK/HK correspondence

    CERN Document Server

    Alexandrov, Sergei; Pioline, Boris

    2011-01-01

    When formulated in twistor space, the D-instanton corrected hypermultiplet moduli space in N=2 string vacua and the Coulomb branch of rigid N=2 gauge theories on $R^3 \\times S^1$ are strikingly similar and, to a large extent, dictated by consistency with wall-crossing. We elucidate this similarity by showing that these two spaces are related under a general duality between, on one hand, quaternion-Kahler manifolds with a quaternionic isometry and, on the other hand, hyperkahler manifolds with a rotational isometry, further equipped with a hyperholomorphic circle bundle with a connection. We show that the transition functions of the hyperholomorphic circle bundle relevant for the hypermultiplet moduli space are given by the Rogers dilogarithm function, and that consistency across walls of marginal stability is ensured by the motivic wall-crossing formula of Kontsevich and Soibelman. We illustrate the construction on some simple examples of wall-crossing related to cluster algebras for rank 2 Dynkin quivers. In...

  7. El discurso político de la congresista Edith Nourse Rogers en el inicio de su carrera

    Directory of Open Access Journals (Sweden)

    Antonio Daniel Juan Rubio

    2016-06-01

    Full Text Available Edith Nourse Rogers fue una mujer con un impacto significativo en la historia moderna de los Estados Unidos, cambiando para siempre la vida de muchas mujeres por medio de la creación de un cuerpo femenino dentro del ejército, así como por su defensa de los derechos de los veteranos de guerra. El objetivo principal es el de analizar la contribución a la política estadounidense de la congresista Rogers, desde un punto de vista histórico y de género, a través de sus discursos oficiales en la década de 1930 en las diferentes elecciones a las que se enfrentó. La conclusión que obtendremos es que la señora Rogers siempre manifestó púbicamente su preocupación por el bienestar de los habitantes de su distrito electoral, el quinto distrito de Massachusetts. Además, se granjeó el voto femenino reconociendo la labor que las mujeres estaban desarrollando.

  8. Elucidation of the sequence selective binding mode of the DNA minor groove binder adozelesin, by high-field 1H NMR and restrained molecular dynamics

    International Nuclear Information System (INIS)

    Cameron, L.

    1999-01-01

    indole and benzofuran sub-units and the carbonyl of a central thymine base plus a second, weaker, hydrogen-bond to the exocyclic NH 2 of the guanine. Secondly, covalent modification of an adenine by adozelesin yields a distortional wave which terminates 6 base-pairs upstream in the 5'-direction. 1 H NMR data and the resulting molecular model show that adozelesin lies closer to the modified strand as a consequence of this strong hydrogen-bond and perhaps also of the distorted guanine pushing adozelesin to the opposite side of the groove. No distortion of this kind was noted in the 'A' tract model; however, the 1 H NMR data shows that the adenine bases remain propeller twisted, which is characteristic of macroscopically bent DNA. This molecular model showed that, within this most preferred sequence, adozelesin lay centrally within this straighter 'A' tract, yielding an improved complementary fit of the drug within the DNA minor groove. No hydrogen-bonds were detected. This study indicates the possible role of the ureylene linker in the selective binding of adozelesin to the unpredicted GC-containing consensus sequence. Various other minor groove binders (cyanomorpholinoadriamycin, DSB-120 and sibiromycin) also had their sequence-selectivity properties probed with limited success, owing to their inability to yield a single drug-DNA adduct for high-field NMR study. The adozelesin-DNA self-complementary adduct in this study has provided a new and exciting starting point for rational drug design of an adozelesin dimer, a proposed antineoplastic agent with enhanced sequence-selectivity. These adozelesin-DNA adducts have proved to be an excellent model system to investigate the molecular basis for DNA recognition and binding. (author)

  9. Eliminating a Major Cause of Wire Drawing Breakage in A-15 High-Field Superconductors

    International Nuclear Information System (INIS)

    Austen, Alfred R.

    2003-01-01

    Eliminating a Major Cause of Wire Drawing Breakage in A-15 High-Field Superconductors Phase 1 Summary Purpose of the research: The Phase 1 goal was to make a significant improvement in the wire drawing technology used for difficult to draw superconductor precursor composites. Many ductile Nb-Al and Nb-Sn precursor wire composites have experienced the onset of wire drawing breakage at about 1.5 mm diameter. Phase 1 focused on evaluating the role that precision rigid guidance of the wire into the drawing die and the hydrostatic stress state at the die entrance played in preventing wire breakage. Research carried out: The research performed depended upon the construction of both a mechanical wire guide and a hydrostatic pressure stiffened wire guidance system. Innovare constructed the two wire guidance systems and tested them for their ability to reduce wire drawing breakage. One set of hardware provided rigid alignment of the wires to their wire drawing die axes within 0.35 degrees using ''hydrostatic pressure stiffening'' to enable the precision guidance strategy to be implemented for these highly flexible small diameter wires. This apparatus was compared to a guide arrangement that used short span mechanical guide alignment with a misalignment limit of about 0.75 degrees. Four A-15 composite wires with breakage histories were drawn to evaluate the use of these wire guiding systems to reduce and/or eliminate wire breakage. Research findings and results: In Phase 1, a breakthrough in wire drawing technology for A-15 superconductor composites was achieved by dramatically limiting or eliminating breakage in four different A-15 composite precursor wire designs during the drawing of these very desirable composites that previously could not be drawn to near final size. Research results showed that the proposed Phase 1 mechanical wire guides were sufficiently effective and successful in eliminating breakage when used along with other advanced wire drawing technology to

  10. Authors' Response:

    Directory of Open Access Journals (Sweden)

    E Auger

    2012-03-01

    Full Text Available In this article, the authors suggest that one method for increasing awareness of the benefits of data sharing can be affected by administering a survey, hopefully encouraging either a minority or majority influence on other members of the behavioural science community. The authors describe the process for creating such a survey and provide their survey, although untested. This is a well-timed article as the existing literature on social and behavioural science data is quite thin. The majority/minority influence of norms is a nice theoretical construct to explore. This is definitely one approach to increase awareness of the benefits of data sharing.

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    African Journals Online (AJOL)

    Manga, A.A.. Vol 10, No 1 (2017) - Articles Effect of different concentrations of aqueous Ascophyllum nodosum extract on flowering and fruiting in some vegetables. Abstract PDF. ISSN: 2006-6996. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    Manga, Anicet. Vol 11, No 5 (2017) - Articles Le champignon arbusculaire Glomus aggregatum améliore la nutrition minérale de Acacia seyal soumis au stress salin progressif. Abstract PDF. ISSN: 1997-342X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Manga, SB. Vol 29, No 2 (2008) - Articles Larvicidal efficacy of stock Bacillus sphaericus on local species of Anopheles mosquito in Sokoto, Nigeria Abstract. ISSN: 1117-4145. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Manga, T. Tiki. Vol 8, No 2 (2000) - Articles Chemical composition of Ricinodendron heudelotii: An indigenous fruit tree in southern Cameroon Abstract. ISSN: 2072-6589. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

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    Egah, DZ. Vol 54, No 2 (2008) - Articles Poliomyelitis: An Assessment of the Knowledge of Women in Jos Nigeria and Implications for its Global Eradication Early 21st Century Abstract. ISSN: 0189-0964. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Jombo, GTA. Vol 54, No 2 (2008) - Articles Poliomyelitis: An Assessment of the Knowledge of Women in Jos Nigeria and Implications for its Global Eradication Early 21st Century Abstract. ISSN: 0189-0964. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Fatiregun, AA. Vol 7, No 2 (2008) - Articles Poliomyelitis in Osun State, Nigeria: Two Confirmed Cases After 6 years Without Polio Abstract. ISSN: 1595-8272. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

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    Eggers, R. Vol 84, No 10 (1994) - Articles Eradication of poliomyelitis in South Africa Abstract PDF. ISSN: 0256-95749. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

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    Adeyemo, Lateef Kayode. Vol 13 (2017) - Articles Legalising same sex marriage and cloning: a need for ethical consideration. Abstract PDF. ISSN: 1597-474X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Uzoma, EF. Vol 1, No 3 (2010) - Articles Challenges and Implications of Genesis 2:18 – 24 on Same-Sex Marriage for the Contemporary Society Abstract PDF. ISSN: 2006-5442. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Wynchank, Dora. Vol 9, No 2 (2006) - Articles Guest Editorial Psychiatry and same sex marriage: are we involved? Abstract PDF. ISSN: 1994-8220. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Odiase-Alegimenlen, OA. Vol 3, No 1 (2014) - Articles Same sex marriage: Nigeria at the middle of western politics. Abstract PDF. ISSN: 2304-8239. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Van Staden, A. Vol 23, No 3 (2017) - Articles Self-reported symptoms of eating disorders amongst university dance students. Abstract. ISSN: 1117-4315. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

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    Cottle, Edward. Vol 7, No 1 (2003) - Articles Realising the right of access to water: Pipe dream or watershed? Abstract PDF. ISSN: 2077-4907. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Elbusaidy, Hemed. Vol 4, No 2 (2015) - Articles Variant Anatomy of Intracranial Part of Middle Meningeal Artery in a Kenyan Population Abstract PDF. ISSN: 2305-9478. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Okolie, CJ. Vol 7, No 1 (2012) - Articles Transformation of Shuttle Radar Topography Mission (SRTM) Digital Elevation Data to Nigerian Height System Abstract. ISSN: 1597-8826. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Adzandeh, EA. Vol 7, No 1 (2012) - Articles Transformation of Shuttle Radar Topography Mission (SRTM) Digital Elevation Data to Nigerian Height System Abstract. ISSN: 1597-8826. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Ismagilov, I.I.. Vol 9, No 2S (2017): Special Issue - Articles General method of synthesis by PLIC/FPGA digital devices to perform discrete orthogonal transformations. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    Oliha, FO. Vol 33, No 2 (2014) - Research papers. Web Portal Usability among Nigerian University Students: A Case Study of University Of Benin, Nigeria Abstract PDF. ISSN: 2467-8821. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Quaye-Ballard, J A. Vol 27, No 2 (2007) - Articles Usability testing: using “think aloud” method in testing cartographic product. Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

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    Odubamowo, Kehinde Hussein. Vol 34, No 2 (2017) - Articles Dysmenorrhea among female students at a teaching hospital in South‑Western Nigeria Abstract PDF. ISSN: 0189-5117. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Ugboajah, PKN. Vol 9 (2012) - Articles “We Saw No Real Outstanding Leaders”: Britain's Perception of Nigerian Nationalist Class in Colonial Nigeria Abstract. ISSN: 1597-3778. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Zu, YG. Vol 60 (2007) - Articles Supercritical Fluid Extraction of Seed Oil from Chinese Licorice Glycyrrhiza uralensis Fisch.): Chemical Composition and Antibacterial Activity Abstract PDF. ISSN: 0379-4350. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Ezeja, Maxwell I. Vol 53, No 3 (2017) - Articles Antioxidant, anti-inflammatory and antinociceptive activities of methanolic extract of Justicia secunda Vahl leaf. Abstract PDF. ISSN: 2090-2948. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Koona, OES. Vol 9, No 2 (2012) - Articles Effect of the Aqueous Extract of Justicia insularis T. Anders (Acanthaceae) on Ovarian Folliculogenesis and Fertility of Female Rats Abstract PDF. ISSN: 0189-6016. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Imtiyaz, M. Vol 27, No 2 (2007) - Articles Yield, irrigation production efficiency and economic returns of broccoli under variable drip irrigation and lateral spacing. Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    Medugu, D W. Vol 18, No 2 (2006) - Articles Design and development of solar still for effectiveness in eliminating microbial contamination and salt in Mubi, Adamawa State, Nigeria Abstract PDF. ISSN: 1595-0611. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Osarolube, E. Vol 7, No 2 (2008) - Articles Single effect green house type solar still for portable water supply. Abstract. ISSN: 1118-1931. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

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    Dublin-Green, M. Vol 7 (2005) - Articles Quality evaluation of yogurts produced commercially In Lagos, Nigeria Abstract PDF. ISSN: 1119-023X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Chukwuma, FO. Vol 4, No 1 (2006) - Articles Use of Straight –Run Gasoline (Srg) as A Leaching Solvent for Oil Palm (Elaeis Guineensis) Kernel Seed Abstract. ISSN: 1596-3497. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Sanusi, AA. Vol 14, No 1 (2008) - Articles Hepatorenal Syndrome In Nigeria: A Review of Pathophysiology, Clinical Features and Management Abstract. ISSN: 0331-3727. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

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    Magendzo, A. Vol 29, No 2 (2011) - Articles Teaching recent history in countries that have experienced human rights violations: Case studies from Chile Abstract. ISSN: 0258-2236. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Asaah, A H. Vol 23, No 1 (2007): - Articles Pan-Africanism, inter-African migration and crisis of national integration in the African novel. Abstract. ISSN: 0855-4412. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Nyangena, KO. Vol 6, No 1-2 (2003) - Articles Jomo Kenyatta: An Epitome of Indigenous Pan-Africanism, Nationalism and Intellectual Production in Kenya Abstract PDF. ISSN: 0850-7902. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Njubi, Francis. Vol 15, No 1 (2001): Media Freedom and Human Rights - Articles New Media, Old Struggles: Pan Africanism, Anti-racism and Information Technology Details. ISSN: 0256-004. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Forje, JW. Vol 6, No 1-2 (2003) - Articles Self-Determination, Nationalism, Development and Pan-Africanism Stuck on the Runway: Are Intellectuals to be Blamed? Abstract PDF. ISSN: 0850-7902. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    border life, pan-africanism, and identity in Ahmadou Kourouma's novels. Abstract. ISSN: 0254-4296. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Paul, Fintan. Vol 5, No 1 (2017) - Articles Government expenditure and economic growth nexus: Wagner's law or Keynesian hypothesis for Tanzania? Abstract PDF. ISSN: 1821-8148. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Qi, Qing. Vol 29, No 2 (2017) - Articles Psychological health among Chinese college students: a rural/urban comparison. Abstract. ISSN: 1728-0583. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Sumera, Matthew. Vol 12, No 1-2 (2015) - Articles Johnson, Bruce & Martin Cloonan (2009). Dark Side of the Tune: Popular Music and Violence Abstract. ISSN: 2070-626X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

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    Adido, J. Vol 16, No 1 (2008) - Articles Vision of Strabismic Children in Ilorin, Nigeria Abstract PDF. ISSN: 2468-8363. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

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    Elmehashi, MO. Vol 9, No 4 (2014) - Articles Hysteroscopy in Libyan women with Recurrent Pregnancy Loss Abstract. ISSN: 1858-5051. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

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    Laleye, F O. Vol 6, No 1 (2007) - Articles In vitro Heparin Precipitation in the Plasma of Euthyroid women with Recurrent Miscarriage and Unexplained Infertility Abstract. ISSN: 1595-8272. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Osei-Bagyina, A. Vol 28, No 2 (2008) - Articles Assessment and Management of Articulation and Phonological Disorders in School Children in Ghana Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Hamisa, M. Vol 51, No 3 (2015) - Articles Role of Doppler US and MRI in diagnosis of placenta accreta. Abstract PDF. ISSN: 2090-2948. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

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    Korah, TE. Vol 50, No 3 (2014) - Articles Role of serum glypican-3 in the diagnosis and differentiation of small hepatocellular carcinoma from hepatitis-C virus cirrhosis. Abstract PDF. ISSN: 2090-2948. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Widyawaruyanti, A. Vol 4, No 3 (2007) - Articles Apoptosis Inducing Effect Of Andrographolide On TF-47 Human Breast Cancer Cell Line Abstract PDF. ISSN: 0189-6016. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Jordaan, JC. Vol 17, No 3 (2013) - Articles Impact of interest rate changes on South African GDP and households: a combined macroeconomic and social accounting matrix modelling approach. Abstract PDF. ISSN: 1998-8125. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Chakraborty, Shankar. Vol 4, No 2 (2012) - Articles A modified principal component analysis-based utility theory approach for optimization of correlated responses of EDM process. Abstract PDF. ISSN: 2141-2839. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Isa, E.D.M.. Vol 9, No 6S (2017) - Articles Silica coated ionic liquid templated mesoporous silica nanoparticles. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Mahapatra, S. Vol 2, No 5 (2010) - Articles Modeling, simulation and parametric optimization of wire EDM process using response surface methodology coupled with grey-Taguchi technique. Abstract PDF. ISSN: 2141-2839. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Omokhudu, OO. Vol 2, No 1 (2011) - Articles International Convergence of Accounting Standards: Issues and Challenges Abstract. ISSN: 2141-4343. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Kareem, MK. Vol 22 (2012): 21-22 (2011-2012) - Articles The Nigerian Statements of Accounting Standards and Ribh (Profit) in an Islamic Economy Abstract. ISSN: 2141-9744. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Al-Suqri, MN. Vol 12, No 1-2 (2012) - Articles Toward Virtual Universities in the Sultanate of Oman: Reality, Challenges and Perspectives Abstract PDF. ISSN: 1596-5422. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

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    Ekweariri, CS. Vol 4, No 1-2 (2013) - Articles Synthetic design and the art of virtual reality in theatre and film productions. Abstract PDF. ISSN: 2449-1179. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

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    Xu, H. Vol 9, No 6S (2017) - Articles An external control unit implemented for stimulator ASIC testing. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

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    Kumari, N.A.K.G.E.. Vol 7, No 1 (2002) - Articles Appropriate Hydroponic systems for growing tropical leafy vegetables in greenhouse. Abstract. ISSN: 1118-2733. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Oladele, O. I.. Vol 7, No 1 (2002) - Articles Appropriate Hydroponic systems for growing tropical leafy vegetables in greenhouse. Abstract. ISSN: 1118-2733. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

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    Okeke, K.K.. Vol 23, No 1 (2016) - Articles Overview of NoSQL and comparison with SQL database management systems. Abstract. ISSN: 2006-5523. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Luna, AM. Vol 8, No 1 (2008) - Articles From Complementarity to Conflict: A Historical Analysis of Farmer-Fulbe Relations in West Africa Abstract PDF. ISSN: 1562-6997. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Bergh, Luna. Vol 29, No 1 (2011) - Articles Met kerse op met-konstruksies1: 'n Verwysingspuntperspektief Abstract. ISSN: 1607-3614. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

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    Hatami, Homeira. Vol 12, No 1 (2015) - Articles Intrahippocampal administration of Vitamin C and progesterone attenuates spatial earning and memory impairments in multiple sclerosis rats. Abstract. ISSN: 1597-3115. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

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    Dermaux-Msimang, Veerle. Vol 106, No 3 (2016) - Articles Editorial: Is South Africa at risk for Zika virus disease? Abstract PDF. ISSN: 0256-95749. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Afolabi, Lukman Olalekan. Vol 5, No 2 (2016) - Articles A Review on the Incidence, Interaction, and Future Perspective on Zika Virus Abstract PDF. ISSN: 2320-2041. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    McLean, Ewen. Vol 12, No 1 (2017) - Articles Computational identification of mutually homologous Zika virus miRNAs that target microcephaly genes. Abstract PDF. ISSN: 1819-6357. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Chado, UD. Vol 21, No 4 (2017) - Articles A Mathematical Model for the Dynamics of Zika Virus via Homotopy Perturbation Method Abstract PDF. ISSN: 1119-8362. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Ashimi, A.O.. Vol 59, No 4 (2017) - Articles Knowledge of Zika virus disease among reproductive-age women attending a general outpatient clinic in Northern Nigeria Abstract PDF. ISSN: 2078-6204. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    Davidson, Kevin. Vol 32, No 1 (2012) - Articles Stylistic traits in South African Jazz Barney Rachabane: a case study. Abstract. ISSN: 0258-509X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Coplan, DB. Vol 33, No 1 (2013) - Articles Thula Mabota: South African Jazz and Popular Music Since 1994. Abstract. ISSN: 0258-509X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

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    Aziakpono, Meshach Jesse. Vol 9, No 2 (2017) - Articles The relationship between financial inclusion and income inequality in sub-Saharan Africa: Evidence from disaggregated data. Abstract. ISSN: 2042-1478. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Ndjio, B. Vol 11, No 2 (2008) - Articles Millennial Democracy and Spectral Reality in Post-colonial Africa Abstract PDF. ISSN: 0850-7902. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

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    Comarof, Jean. Vol 1999, No 3-4 (1999) - Articles Alien-Nation: Zombies, Immigrants and Millennial Capitalism Details. ISSN: 0850-8712. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

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    Krakstad, J-O. Vol 32, No 2 (2010) - Articles Dusky dolphins Lagenorhynchus obscurus and Cape fur seals Arctocephalus pusillus pusillus: fatty acid composition of their blubber and prey species. Abstract. ISSN: 1814-232X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Berggren, P. Vol 4, No 1 (2005) - Articles The Occurrence and Distribution of Dolphins in Zanzibar, Tanzania, with Comments on the Differences Between Two Species of Tursiops Abstract PDF. ISSN: 0856-860X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Collins, Tim. Vol 46, No 1 (2011) - Articles West Africa's Atlantic humpback dolphin (Sousa teuszii): endemic, enigmatic and soon Endangered? Abstract. ISSN: 2224-073X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

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    Davis, RW. Vol 36, No 4 (2014) - Articles Home range and diving behaviour of Heaviside's dolphins monitored by satellite off the west coast of South Africa Abstract. ISSN: 1814-2338. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Assefa, B. Vol 23 (2006) - Articles Defluoridation of Ethiopian Rift Valley Region water using reverse osmosis membranes. Abstract PDF. ISSN: 0514-6216. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

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    Altunkaş, Fatih. Vol 14, No 1 (2014) - Articles Is there any relationship between RDW levels and atrial fibrillation in hypertensive patient? Abstract PDF. ISSN: 1680-6905. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    NENTY, N. JOHNSON. Vol 7, No 3 (2001) - Articles Common errors and perfomance of students in junior secondary mathematics certificate examinations in Cross River State, Nigeria Details PDF. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

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    Johnson, P_NT. Vol 31, No 1 (1998) - Articles Physico-chemical changes during storage of dehydrated plantain slices packaged in two polymeric film pouches. Abstract. ISSN: 0855-0042. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Johnson, Tosin. Vol 13, No 1 (2016) - Articles Antidiabetic effect of Crossopteryx febrifuga methanolic leaf extract in alloxan induced diabetic rats. Abstract. ISSN: 0189-8442. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

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    Clasquin-Johnson, M. Vol 29, No 2 (2009) - Articles The centuries-old dialogue between buddhism and christianity. Abstract PDF. ISSN: 2309-9089. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Johnson, J. Vol 12, No 1 (2009) - Articles Climate Change and Fishery Sustainability in Lake Victoria Abstract. ISSN: 0002-0036. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

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    Johnson-Ajinwo, OR. Vol 8, No 1 (2010) - Articles A Review of the Bio-Activity Relationship of Mistletoes and the Leaves of their Host Trees Abstract. ISSN: 0189-8434. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Johnson, FS. Vol 30, No 1 (2010) - Articles Saccharification of Maize Agrowastes by Cellulolytic Fungi Isolated from Ejura Farms in Ejura, Ghana Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Nenty, H. Johnson. Vol 4, No 1 (2000) - Articles Gender-typing, Performance and Achievement-related Behaviour in Mathematics by Secondary School Students in Lesotho Abstract. ISSN: 1024-4190. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    Cobbett, E. Vol 31 (2011) - Articles The Shaping of Islamic Finance in South Africa: Public Islam and Muslim Publics Abstract. ISSN: 0257-7062. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Aderibigbe, EY. Vol 14, No 1 (2003) - Articles Propagation of tempeh Rhizopus oligosporus I: Use of organic food wastes. Abstract PDF. ISSN: 01891731. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

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    Mahtar, S.N.A.M.. Vol 9, No 5S (2017): Special Issue - Articles Trust aware recommender system with distrust in different views of trusted users. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

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    Gilban, Hussa M. Vol 24, No 4 (2005) - Articles Simultaneous post traumatic bilateral cervico-trochanteric femoral neck fractures in a child: a case report. Abstract PDF. ISSN: 0189-160X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Yabefa, ET. Vol 35, No 2 (2016) - Computer, Telecommunications, Software, Electrical & Electronics Engineering MULTILEVEL BUCK CONVERTER FOR AUTOMOTIVE ELECTRICAL LOAD Abstract PDF. ISSN: 2467-8821. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Gangurde, HH. Vol 4, No 2 (2010) - Articles Amyotrophic lateral sclerosis. Abstract. ISSN: 0331-3131. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER RESOURCES.

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    Mohammed, SS. Vol 18 (2013) - Articles Oil characterization, amino acid and vitamin A and C composition of Cucurbita maxima seed obtained from Sakpe, Niger state, Nigeria. Abstract PDF. ISSN: 1119-0221. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Millogo/Rasolodimby, J. Vol 3, No 4 (2009) - Articles Plantes utilisées pour attirer les essaims de l'abeille domestique (Apis mellifera adansonii Latreille) au Burkina Faso Abstract PDF. ISSN: 1997-342X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Smith, G. Vol 21, No 6 (2007) - Articles Print based learning might still be the answer to the digital divide. Abstract. ISSN: 1011-3487. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

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    Akidi, Juliana Obiageri. Vol 50, No 1 (2017) - Articles Bridging the digital divide: the potential role of the National Library of Nigeria Abstract. ISSN: 0029-0122. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

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    Ugboma, Margaret U. Vol 3, No 1-2 (2012) - Articles Bridging the digital divide: with special reference to Nigeria Abstract PDF. ISSN: 2360-994X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Kamau, SN. Vol 1, No 1 (2007) - Articles A digital divide: Kiswahili holds the key. Abstract PDF. ISSN: 1998-1279. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

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    Bennett, M. Vol 5, No 3 (2005) - Articles Crossing the digital divide: the contribution of information technology to the professional performance of malaria researchers in Africa Abstract PDF. ISSN: 1680-6905. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Ugoji, FN. Vol 14, No 1 (2011) - Articles Self-Efficacy and Locus of Control as Predictors of Academic Procrastination Among Undergraduates in a Nigerian Abstract · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Nwafor, A. U.. Vol 36, No 2 (2017) - Articles Experimental validation of optimum resistance moment of concrete slabs reinforced with carbon fibre-reinforced plastic. Abstract PDF. ISSN: 2467-8821. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    Dzasu, WE. Vol 4, No 1 (2011) - Articles Effects of Groundnut Husk Ash-blended Cement on Chemical Resistance of Concrete Abstract PDF. ISSN: 1596-6035. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Indian Academy of Sciences (India)

    user1

    Astr. (2012) 33, 419–420. Author Index. 419. AGGARWAL SUNNY. Photoionization Cross-Section of Chlorine-like Iron, 291. AMBASTHA ASHOK see Das, A. C., 1. ARAKIDA HIDEYOSHI. Effect of Inhomogeneity of the Universe on a Gravitationally. Bound Local System: A No-Go Result for Explaining the Secular Increase in.

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    Umar, L A. Vol 24, No 3 (2006) - Articles Survey Of Ketosis In Lactating Wadara Cows Abstract. ISSN: 0794-4845. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

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    Langaney, A. Vol 1, No 2 (2009) - Articles Critical Short Report: Human population genetics and “ancestrality” business - Short report. Abstract PDF. ISSN: 1737-8176. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Cinelli, G. Vol 28, No 1 (2015) - Articles La funzione etica e catartica della rappresentazione della sofferenza in storia della colonna infame di manzoni. Abstract PDF. ISSN: 2225-7039. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Adewumi, A. Vol 1, No 2 (2009) - Articles Relationship Between Plasma Homocysteine and Vitamin B12 Levels in Clinically Diagnosed Cases of Cardiovascular Accident in Lagos, Nigeria Abstract PDF. ISSN: 2076-6270. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Akinsola, OJ. Vol 14, No 1-2 (2014) - Articles Plasma Homocysteine and Haematological Changes in Infertile Women in Lagos, Nigeria Abstract. ISSN: 1597-7889. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Abd Elmonem, Sawsan M. Vol 19, No 1 (2018) - Articles Abnormal maternal biomarkers of homocysteine and methionine metabolism and the risk of congenital heart defects. Abstract PDF. ISSN: 1110-8630. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

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    Abudu, O. Vol 1, No 1 (2009) - Articles Homocysteine Levels in Nigerian Women with Pre-eclampsis/Eclampsia Abstract PDF. ISSN: 2076-6270. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Agada, N. Vol 1, No 2 (2009) - Articles Relationship Between Plasma Homocysteine and Vitamin B12 Levels in Clinically Diagnosed Cases of Cardiovascular Accident in Lagos, Nigeria Abstract PDF. ISSN: 2076-6270. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

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    Oladipo, OO. Vol 30, No 5 (2011) - Articles Plasma Homocysteine Level and its Relationship to Clinical Profile in Parkinson's Disease Patients at the Lagos University Teaching Hospital Abstract PDF. ISSN: 0189-160X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

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    Kanjou, Y. Vol 1, No 2 (2009) - Articles Original Synthetic Report: Study of Neolithic human graves from Tell Qaramel in North Syria Abstract PDF. ISSN: 1737-8176. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Agu, KC. Vol 19, No 3 (2015) - Articles Influence of Spent-Engine Oil on Hematology, Renal and Liver Status of Auto- Mechanics of Benin-City, Nigeria Abstract PDF. ISSN: 1119-8362. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Mbam, BCE. Vol 19, No 1 (2013) - Articles Traffic simulation for mixed traffic systems. Abstract. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

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    Onwubiko, HA. Vol 8, No 3 (2011) - Articles Metal induced conformational changes of prion protein into Β-sheet isoforms similar to amyloid. Abstract. ISSN: 1597-3115. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

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    Tutu, E. Vol 27, No 1 (2007) - Articles Friction coefficient of maize, cowpea and groundnuts on different structural surfaces. Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

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    Aveyire, J. Vol 27, No 1 (2007) - Articles Friction coefficient of maize, cowpea and groundnuts on different structural surfaces. Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

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    Amao, A.O. Vol 4, No 1 (2009) - Articles Natural foods and feeding habits of the African honey bee Apis mellifera adansonii Latrielle (1804) in Zaria, northern Nigeria Abstract PDF. ISSN: 1597-6343. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

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    Ademolu, A. A.. Vol 11, No 1-2 (2015) - Articles Laboratory Evaluation of Insecticidal Activities of Some Botanicals against Four Insect Pests of Honey Bees (Apis mellifera L.) Abstract PDF. ISSN: 0331-5428. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Achou, M. Vol 28 (2014) - Articles Etude de la diversité morphométrique de deux populations d'abeilles domestiques (Apis mellifera intermissa et Apis mellifera sahariensis) du sud Algérien Abstract PDF. ISSN: 2352-9717. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Fasasi, KA. Vol 8 (2010) - Articles Effect of age of honeybee queens of Apis mellifera adansonii (Hymenoptera: apidae) on the rate of brood production in modern bee-hives. Abstract. ISSN: 1596-972X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

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    Fasasi, KA. Vol 13, No 1 (2011) - Articles Studies on the life cycle and morphometrics of honeybees, Apis Mellifera adansonii (Hymenoptera: Apidae) in a Mangrove Area of Lagos, Nigeria Abstract PDF. ISSN: 0794-4896. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

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    Alkan, M. Vol 20, No 10 (2017) - Articles Neutrophil lymphocyte ratio predicts postoperative pain after orthognathic surgery. Abstract PDF. ISSN: 1119-3077. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

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    Jones, T. Vol 96 (2007) - Articles Cassin\\'s hawk-eagle Spizaetus africanus in Ndundulu Forest: a first record for Tanzania, with biogeographical implication. Abstract. ISSN: 1026-1613. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

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    Idrus, Z. Vol 9, No 5S (2017): Special Issue - Articles Visual analytics: designing flexible filtering in parallel coordinate graph. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

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    Ewing, H. Vol 2, No 2 (2015): Series F - Articles Abstract: Use of E-Learning to Advance Nursing Education in Rwanda Abstract PDF. ISSN: 2305-2678. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

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    Polat, Nedim. Vol 13, No 3 (2017) - Articles Intestinal obstruction due to ileal metastasis of Ewing's sarcoma. Abstract PDF. ISSN: 1687-4137. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

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    Batista, Vasco. Vol 41, No 1 (2006) - Articles Spring diet and trophic partitioning in an alpine lizard community from Morocco Abstract. ISSN: 2224-073X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

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    Dosunmu, OJ. Vol 7, No 23 (2008) - Articles Hatchability of chicken eggs as influenced by turning frequency in hurricane lantern incubator. Abstract PDF. ISSN: 1684-5315. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

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