Sample records for wilhelm konrad roentgen

  1. Konrad Lorenz Forschungsstelle

    E-print Network

    Konrad Lorenz Forschungsstelle Fischerau 11. A-4645 Grünau (0043)-(0)7616-8510, fax: (0043--PlanckPlanck--GesellschaftGesellschaft finanziert, anschliefinanziert, anschließßend bis zum Tod von Konrad Lorenz, 1989, eher schlecht als rechtend bis zum Tod von Konrad Lorenz, 1989, eher schlecht als recht von dervon der

  2. Roentgen Stereophotogrammetry In Orthopedics

    NASA Astrophysics Data System (ADS)

    Selvik, Goran

    1983-07-01

    A system for roentgen stereophotogrammetry has been used in Lund, Sweden, since August 1972 and by August 1982 ten thousand stereo films have been evaluated using this method. Patient investigations started March 1973 and of the more than 500 patients investigated 300 have been referred by orthopedic surgeons. The skeletal parts investigated had been permanently marked with tantalum balls 0.5 or 0.8 mm in diameter. The causes for the investigation have been bone growth disorders in the Lower extremity (134 patients), spinal fusions (35 patients), high tibial osteotomies for gonarthrosis (21 patients) and endoprosthetic replacement of the knee (68 patients) or hip (42 patients) joint. By the roentgen stereophotogrammetric analysis (RSA), information on for instance the development of angular deformities and staple loosening in the leg, the healing process of the intended fusion in the spine or at the knee, and on the migration and stability of prosthetic components have been obtained. RSA is of value both for prognostic and followup purposes, and is versatile enough in proper setting to be used as a routine clinical investigation.

  3. Roentgen signs in diagnostic imaging. Second edition

    SciTech Connect

    Meschan, I. Farrer-Meschan, R.M. (Bowman Gray School of Medicine, Winston-Salem, NC (USA))

    1987-01-01

    This book contains 13 chapters. Some of the titles are: Radiology of the diaphragm, pleura, thoracic cage, and upper air passages; Radiology of the breasts; Radiology of nodular lesions of the lung parenchyma; Roentgen signs of abnormalities in the lung: and overview; and Special examination of the larynx.

  4. Photogrammetry Konrad Schindler, ETH Zurich

    E-print Network

    Schindler, Konrad

    Photogrammetry Konrad Schindler, ETH Z¨urich Wolfgang F¨orstner, Bonn University Related Concepts Definition Photogrammetry is the science and technology of obtaining information about the physical. The aim of photogrammetry is to provide automated or semi-automated procedures for these engineering tasks

  5. DIE KONRAD-LORENZ FORSCHUNGSSTELLE UND WAS FOLGTE

    E-print Network

    DIE KONRAD-LORENZ FORSCHUNGSSTELLE UND WAS FOLGTE Die Forschungsstelle wurde 1973 vom 70-jährigen österreichischen Nobelpreisträger Konrad Lorenz nach seiner Emeritierung vom Max Planck Institut in Seewiesen

  6. Roentgen stereophotogrammetry for analysis of cranial growth

    SciTech Connect

    Selvik, G.; Alberius, P.; Fahlman, M.

    1986-04-01

    A system of roentgen stereophotogrammetric analysis (RSA) has been developed and its value in studies of cranial growth in both man and the experimental animal (rabbit) has been delineated. This method is based on measurements from metal bone marker images on roentgenograms. Two roentgen tubes simultaneously expose the object, which is placed in one of two types of calibration cages. The object position does not need to be identical from one examination to the next. The cage, holding indicators of predetermined internal positions (in two or four planes), defines a laboratory coordinate system. Two-dimensional image coordinates are obtained by means of a highly accurate cartographic instrument. By computer reconstruction of the x-ray beams through the markers, 3-D object coordinates are calculated. For subsequent analysis of growth processes, extensive software is necessary. To control intrasegmental stability (routinely performed at each examination), a minimum of two markers is required, whereas three markers are needed in each skeletal segment for kinematic analysis using the rigid-body concept. Careful planning of marker placement before implantation minimizes implant loss and instability that otherwise might be a problem. Complications other than bone marker loosening have been nonexistent. The technical accuracy is high. Consequently, roentgen stereophotogrammetry, with the aid of metallic implants, is a superior means to obtain biometric information on cranial growth with relative ease.

  7. Herbert Bruderer Konrad Zuse und die Schweiz

    E-print Network

    Jäger, Gerhard

    Herbert Bruderer Konrad Zuse und die Schweiz Wer hat den Computer erfunden? 2012 | XXVI, 224 Seiten Schweiz hatte und am Entstehen einer Informatik-Kultur in der Schweiz wesentlich beteiligt war. Herbert Buch einen ebenso fundierten wie lebendigen Einblick in die Anfänge der Infor- matik in der Schweiz

  8. Roentgen stereophotogrammetry in high tibial osteotomy for gonarthrosis

    Microsoft Academic Search

    Björn Tjörnstrand; Göran Selvik; Niels Egund; Anders Lindstrand

    1981-01-01

    In three cases operated with high tibial osteotomy for medial gonarthrosis the exact method of roentgen stereophotogrammetry with tantalum balls as bone markers (Selvik 1974) was used to study angular and translational movements in three dimensions at the operation and during the healing period. Tibial osteotomy caused angular and translational movements even in planes where correction was not intended, and

  9. Guidelines for the granting of the Konrad Zuse Scholarship Konrad-Zuse-Zentrum fr Informationstechnik Berlin (ZIB) as a non-university research

    E-print Network

    Andrzejak, Artur

    Guidelines for the granting of the Konrad Zuse Scholarship Konrad-Zuse-Zentrum für for the granting of the Konrad Zuse Scholarship and the tutoring of the scholarship holders are the professors are largely in line with the DFG recommendations on the granting of scholarships within the framework of post

  10. Theoretical reflections on Wilhelm Reich's Character Analysis.

    PubMed

    Shapiro, David

    2002-01-01

    The ideas contained in Wilhelm Reich's Character Analysis, while very influential, have not been thoroughly exploited in psychoanalysis and psychotherapy. These ideas, aimed particularly at producing genuine change rather than mere intellectual understanding, are reexamined. Further implications of them are discussed. PMID:12400201

  11. The scientific achievements of Klaus Wilhelm

    NASA Astrophysics Data System (ADS)

    Huber, Martin C. E.

    2002-06-01

    We summarise and illustrate the scientific achievements of Klaus Wilhelm, starting with his diploma thesis. We also touch on his science-policy work, which he did, first, as a staff member of ESRO and, later on, as a representative of the scientific community in ESA's Solar System Working Group. We then turn to Klaus Wilhelm's influence and impact as the Principal Investigator (PI) of the SUMER (Solar Ultraviolet Measurement of Emitted Radiation) experiment on the Solar and Heliospheric Observatory, SOHO. As a distinguished collaborator of the PI in an earlier groundbreaking space experiment, namely the Halley Multicolour Camera (HMC) on ESA's Giotto probe, he was predestined to become a leading figure in the SOHO Science Working Team (SWT). The organisation of his experiment team was impeccable and he always focused his mind on the scientific and technical aims of SUMER. Personal or political issues never distracted him. Klaus Wilhelm was instrumental in achieving a reliable radiometric calibration that was traceable to a primary radiative laboratory standard. SUMER was the UV experiment on SOHO with the best, most comprehensive laboratory calibration and, thanks to integrity of design and a careful choice of materials, SUMER had a remarkably stable responsivity in orbit. Thus, Klaus Wilhelm as SUMER PI, had a decisive influence on two of the most important improvements in vacuum-ultraviolet solar spectroscopy that came with SOHO: cleanliness - in particular, with respect to condensable matter - and radiometric accuracy. Klaus Wilhelm is a scientist with sound principles. His enthusiasm, his pleasant personality, his urge to rapidly and thoroughly resolve problems when they arise and his continuous search for knowledge have led to the success of SOHO's SUMER experiment, and of this career as a scientist.

  12. License for the Konrad Deep Geological Repository

    SciTech Connect

    Biurrun, E.; Hartje, B.

    2003-02-24

    Deep geological disposal of long-lived radioactive waste is currently considered a major challenge. Until present, only three deep geological disposal facilities have worldwide been operated: the Asse experimental repository (1967-1978) and the Morsleben repository (1971-1998) in Germany as well as the Waste Isolation Pilot Plant (WIPP) in the USA (1999 to present). Recently, the licensing procedure for the fourth such facility, the German Konrad repository, ended with a positive ''Planfeststellung'' (plan approval). With its plan approval decision, the licensing authority, the Ministry of the Environment of the state of Lower Saxony, approved the single license needed pursuant to German law to construct, operate, and later close down this facility.

  13. Piecewise Rigid 3D Scene Flow Christoph Vogel Konrad Schindler

    E-print Network

    reality. 3D scene flow can be regarded as a generalization of two classical computer vision prob- lemsPiecewise Rigid 3D Scene Flow Christoph Vogel Konrad Schindler Photogrammetry & Remote Sensing, ETH Darmstadt sroth@cs.tu-darmstadt.de Abstract Estimating dense 3D scene flow from stereo sequences remains

  14. Title: Mathematical Foundations of Photogrammetry Name: Konrad Schindler

    E-print Network

    Title: Mathematical Foundations of Photogrammetry Name: Konrad Schindler Affil./Addr.: Photogrammetry and Remote Sensing, ETH Z¨urich, Switzerland schindler@geod.baug.ethz.ch Mathematical Foundations of Photogrammetry Summary. Photogrammetry uses photographic cameras to obtain information about the 3D world

  15. Influence of serotonin on fraction of lesions in DNA induced by ultraviolet light and roentgen irradiation

    SciTech Connect

    Ivanova, E.V.; Fraikin, G.Ya.

    1986-02-20

    The influence of serotonin on the yield of thymine dimers and rupture of the N-glycoside bond (the yield of thymine in DNA irradiated with ultraviolet light and roentgen irradiation) was studied by means of two-dimensional thin-layer chromatography. It was found that serotonin bound to DNA decreases the formation of UV-induced thymine dimers, but has no effect on the number of breaks in the N-glycoside bond in thymidine residues induced by roentgen irradiation. The data obtained are discussed in terms of the question of the mechanisms of the protective effect of serotonin in the photoprotection of yeast cells against the lethal action of UV- and roentgen radiation.

  16. Variation of the spatial position computed by Roentgen Stereophotogrammetric Analysis (RSA) under non-standard conditions

    Microsoft Academic Search

    Raffaella Soavi; Mario Motta; Andrea Visani

    1999-01-01

    Roentgen Stereophotogrammetric Analysis (RSA) has been applied to different kinds of research in order to obtain important information in the biomechanics field. Operative requirements change according to the type of investigation and sometimes practical conditions do not always permit one to respect standard specifications.The aim of this paper is to verify the reliability of the system under non-standard conditions, studying

  17. Your article is protected by copyright and all rights are held exclusively by Konrad

    E-print Network

    Paris-Sud XI, Université de

    2011 / Accepted: 13 March 2012 / Published online: 6 November 2012 Ó Konrad Lorenz Institute1 23 #12;1 23 Your article is protected by copyright and all rights are held exclusively by Konrad Lorenz Institute for Evolution and Cognitive Research. This e-offprint is for personal use only and shall

  18. The relative skin movement of the foot: a 2-D roentgen photogrammetry study

    Microsoft Academic Search

    Roy Tranberg; Dan Karlsson

    1998-01-01

    Objective. This paper describes a validation of the relative motions of skin-mounted markers on the foot.Design. The movement of a skin-mounted marker on the foot was evaluated by the use of 2-D roentgen photogrammetry.Background. Validations of skin-mounted markers are needed in order to assess whether clinical use of motion analysis systems is accurate.Methods. Six healthy volunteers participated in the study.

  19. The Meaning of Disfigurement in Wilhelm Hauff's "Dwarf Nose."

    ERIC Educational Resources Information Center

    Blamires, David

    2002-01-01

    Notes that Wilhelm Hauff's fairy tale "Dwarf Nose" tells of a boy who is turned into a squirrel for seven years, then regains human form as a dwarf with a long nose before finally achieving normal adult proportions. Discusses how the story includes details that suggest a sexual interpretation. (SG)

  20. Symbolic State Traversal for WCET Analysis Stephan Wilhelm

    E-print Network

    Oxford, University of

    -deterministic choices. To be safe, the analysis has to exhaustively explore all possibilities. This can lead to stateSymbolic State Traversal for WCET Analysis Stephan Wilhelm AbsInt GmbH and Saarland University a novel symbolic method for WCET analysis based on ab- stract pipeline models which produces sound results

  1. Wilhelm His (1831–1904) and his contributions to neuroanatomy

    Microsoft Academic Search

    R. Shane Tubbs; Marios Loukas; Mohammadali M. Shoja; Aaron A. Cohen-Gadol

    2009-01-01

    Introduction  The contributions to neuroanatomy by the Swiss scientist Wilhelm His, Sr. (1831–1904) are underrepresented in the literature.\\u000a \\u000a \\u000a \\u000a Discussion  The present paper will discuss the life and writings of this pioneer of the neurosciences who expanded our knowledge of neurohistology\\u000a and neuroembryology.

  2. Contributions of Theodor Wilhelm Engelmann on phototaxis, chemotaxis, and photosynthesis.

    PubMed

    Drews, Gerhart

    2005-01-01

    Theodor Wilhelm Engelmann (1843-1909), who had a creative life in music, muscle physiology, and microbiology, developed a sensitive method for tracing the photosynthetic oxygen production of unicellular plants by means of bacterial aerotaxis (chemotaxis). He discovered the absorption spectrum of bacteriopurpurin (bacteriochlorophyll a) and the scotophobic response, photokinesis, and photosynthesis of purple bacteria. PMID:16143904

  3. The Construction of the Konrad Repository - Status and Perspective - 13034

    SciTech Connect

    Kunze, V. [Bundesamt fuer Strahlenschutz - BfS, Postfach 10 01 49, 38201 Salzgitter (Germany)] [Bundesamt fuer Strahlenschutz - BfS, Postfach 10 01 49, 38201 Salzgitter (Germany)

    2013-07-01

    Due to the Atomic Energy Act of Germany the Federation is responsible for the construction and operation of installations for the safekeeping and disposal of radioactive waste. The Federal Office for Radiation Protection (Bundesamt fuer Strahlenschutz - BfS) is assigned with this duty. In 1982 the abandoned iron ore mine Konrad near Salzgitter (Federal State of Lower Saxony) was proposed as a repository for low and intermediate level radioactive waste with negligible heat generation. After 20 years of plan approval procedure the license was granted by the Ministry for Environment of Lower Saxony in May 2002. This decision was finally confirmed by the Federal Administrative Court in March 2007. The construction has started, but former assumptions about the beginning of waste emplacement tuned out to be too optimistic. In the course of the preparatory work and the implementation planning it turned out that many changes need to be done. As a matter of fact most of the documents and planning originate from the 1990's and need to be revised because from that time on until now no adaptation was appropriate. The necessity to apply the state-of-the-art technology and other legal implications give rise to further changes and new licensing procedures, especially building licenses. Furthermore, the license from 2002 also includes a lot of collateral clauses that need to be fulfilled before radioactive waste can be emplaced. With this in mind, the time frame for the construction of the Konrad repository was revised in 2010. As a result, the completion of the erection before 2019 does not seem to be realistic. (authors)

  4. Integrating an Expert System And a Neural Network for Process Planning Mark Wilhelm, Alice E. Smith

    E-print Network

    Smith, Alice E.

    Integrating an Expert System And a Neural Network for Process Planning 1 Mark Wilhelm, Alice E. #12;2 Integrating an Expert System And a Neural Network for Process Planning 3 Mark Wilhelm, Alice E with an artificial neural network. The if/then rules create parts lists and process plans, while the neural network

  5. Mellein and 4-Hydroxymellein Production by Aspergillus ochraceus Wilhelm1

    PubMed Central

    Moore, Jack H.; Davis, Norman D.; Diener, Urban L.

    1972-01-01

    Mellein and 4-hydroxymellein are isocoumarin compounds produced by Aspergillus ochraceus Wilhelm. They are structurally similar to the dihydroisocoumarin moiety of ochratoxin A, a toxic metabolite of the same fungus, and they possibly have similar biological properties. Production of mellein and 4-hydroxymellein on synthetic media and natural solid substrates was determined. Several carbon and nitrogen sources supported production of these metabolites in stationary culture. Additional zinc and molybdenum increased production of both metabolites in stationary culture, but were not required for maximum production in shaken culture. Mellein and 4-hydroxymellein were produced on yellow corn, but neither was produced on wheat, peanuts, or soybeans. PMID:5064985

  6. A biplane roentgen videometry system for dynamic /60 per second/ studies of the shape and size of circulatory structures, particularly the left ventricle.

    NASA Technical Reports Server (NTRS)

    Ritman, E. L.; Sturm, E.; Wood, E. H.; Heintzen, P. H.

    1971-01-01

    A roentgen-television digital-computer technique and a display system developed for dynamic circulatory structure studies are described. Details are given for a videoroentgenographic setup which is used for obtaining biplane roentgen silhouettes of a left ventricle. A 60 per sec measurement of the shape and volume of angiographically outlined cardiac chambers can be made by this technique along with simultaneous ECG, pressure, and flow measurements accessible for real-time digital computer processing and analysis.

  7. Lossless Compression of Adaptive Multiresolution Meshes Felix Kalberer, Konrad Polthier, Christoph von Tycowicz

    E-print Network

    Polthier, Konrad

    of the refinement scheme as explained in the text. Abstract--We present a novel coder for lossless compressionLossless Compression of Adaptive Multiresolution Meshes Felix K¨alberer, Konrad Polthier, Christoph, but the underlying concepts can be directly transferred to other adaptive refinement schemes as well. The compression

  8. Action Snippets: How many frames does human action recognition require? Konrad Schindler

    E-print Network

    Schindler, Konrad

    , ETH Z¨urich, Switzerland konrads@vision.ee.ethz.ch Luc Van Gool ,§ § ESAT, KU Leuven, Belgium vangool@vision vision proves that simple actions can be recognised almost instantaneously. In this paper, we present evaluate it on standard data sets. It turns out that even local shape and optic flow for a single frame

  9. NEURAL ACTIVITY MEASURES AND THEIR DYNAMICS ELI SHLIZERMAN, KONRAD SCHRODER AND J. NATHAN KUTZ

    E-print Network

    Shlizerman, Eli

    NEURAL ACTIVITY MEASURES AND THEIR DYNAMICS ELI SHLIZERMAN, KONRAD SCHRODER AND J. NATHAN KUTZ) for a finite size neural network. The approach takes into account the dynamics for each isolated neuron-field approach, Dynamics of networks, Synchronization, Coherent structures, Neural activity AMS subject

  10. Boekbespreking van Klaus Taschwer und Benedikt Föger, 'Konrad Lorenz. Eine Biographie'

    Microsoft Academic Search

    D. T. Thoomes

    2008-01-01

    Het historisch onderzoek van het bruine verleden van Konrad Lorenz levert een treurig beeld op. De bedenkelijke levenswandel van Lorenz behoeft voor beoefenaren van de ethologie natuurlijk niet te dienen als contrabewijs voor diens wetenschappelijke bijdrage, maar doet wel beseffen dat originaliteit in de wetenschap soms samengaat met duistere en opportunistische motieven.

  11. Gestalt experiments and inductive observations Konrad Lorenz's early epistemological writings and the methods of classical ethology

    Microsoft Academic Search

    Ingo Brigandt

    During the 1940s Konrad Lorenz formulated his early epistemological views, focusing on the cognitive mechanisms induction and Gestalt perception. After the war he used this philosophical framework to defend the approach of classical ethology against other approaches to animal behavior. The present paper examines the relationship between Lorenz's ethological methodology and his philosophy of science and knowledge. The main aim

  12. The early theoretical development of Konrad Lorenz The motivating factors behind his instinct concept

    Microsoft Academic Search

    Ingo Brigandt

    The present study discusses the early theoretical development of Konrad Lorenz in the period from 1930 to 1937. In this period Lorenz developed his position on instinct in the first place, and thus his theoretical views were subject to change. Despite this change, the paper points to relatively stable features of Lorenz's approach, which emerged relatively soon in his scientific

  13. Introduction to Photogrammetry Konrad Schindler, Institute of Geodesy and Photogrammetry, ETH Zrich

    E-print Network

    Giger, Christine

    (high redundancy) · fast data acquisition · dense acquisition · potential for high temporal resolution Zürich Image data acquisition #12;Introduction to Photogrammetry Konrad Schindler, Institute of Geodesy Xp · Sensor size (panchromatic) 17`310 x 11`310 Pixel (196 Mpix) · high radiometric resolution >12

  14. Knightmare in Armor: reflections on Wilhelm Reich's contributions to psychoanalysis.

    PubMed

    Grossman, W I

    1976-11-01

    One of the more curious by-products of the political and social unrest of the late 1960s, has been the emergence of and survival of interest in the writings of Wilhelm Reich (1897-1957). In the last few years, new translations of his books have appeared and some of his early work has been translated for the first time. A biography, magazine articles, and various surveys of his work convey the impression that his ideas are timely, or at least that they are historically important. However, I believe that the current enthusiasm for Reich owes more to the problems that interested him than to the light he shed on them. His great appeal for radical youth is based on his advocacy of social and sexual reform, for which he provided ideological support through a Marxist-psychoanalytic synthesis. By the technique of anthropological, economic, and psychological analysis, Reich tried to provide a scientific justification for revolutionary hopes. PMID:792926

  15. Utopianism in psychology: the case of Wilhelm Reich.

    PubMed

    Pietikainen, Petteri

    2002-01-01

    This article examines utopian elements in Wilhelm Reich's writings in his American phase (1939-1957) in order to illustrate utopian sources of dynamic psychology. Although there are scholars who have used the term "psychological utopia" and applied it to individual thinkers (Reich, Marcuse, Fromm) and to specific psychological disciplines (psychoanalysis, behaviorism, cognitive psychology), the term itself has remained elusive and vague. Furthermore, there have been few attempts to systematically examine utopian elements in twentieth-century psychology in general and the basic assumptions of psychological utopianism in particular. While pointing out that Reich's orgonomic theories have no scientific merit, this article argues for the relevancy of his ideas for understanding the nature of utopianism in dynamic psychology. PMID:11954039

  16. Astronomical research in Kassel under Wilhelm IV. (German Title: Die astronomischen Forschungen in Kassel unter Wilhelm IV.)

    NASA Astrophysics Data System (ADS)

    Hamel, Jürgen; Rothenberg, Eckehard; von Mackensen, Ludolf

    During the reign of the learned Landgrave Wilhelm IV (1567-1592), Kassel was a centre of astronomical research. The observatory, founded in 1560, was the first permanent astronomical observatory of the modern age. Jost Bürgi and Christoph Rothmann were outstanding scholars at that observatory. Around 1586 the first stellar catalogue of the modern history of astronomy was established there, based on own observations. This book outlines the scientific work of the Kassel observatory on the basis of sources, which were partly use for the first time. The second part contains a partial edition of the German translation of the main work of Copernicus, made in 1586 in Kassel - an excellent document of the history of science and especially of the intellectual climate at the court of the Landgrave of Hesse.

  17. Variation of the spatial position computed by Roentgen Stereophotogrammetric Analysis (RSA) under non-standard conditions.

    PubMed

    Soavi, R; Motta, M; Visani, A

    1999-10-01

    Roentgen Stereophotogrammetric Analysis (RSA) has been applied to different kinds of research in order to obtain important information in the biomechanics field. Operative requirements change according to the type of investigation and sometimes practical conditions do not always permit one to respect standard specifications. The aim of this paper is to verify the reliability of the system under non-standard conditions, studying the effects of the focus-to-film distance on the determination of 3D co-ordinates of markers. The application of statistical analysis, consisting of two and three way ANalysis Of VAriance (ANOVA), showed that focus-to-film distance is not a significant source of variation, i.e., the system can correctly compute the marker position inside the calibrated space under all conditions of magnification. Since we obtained a fluctuation due to focal distance change of 10(-5) mm (LSD for 95% confidence level), we can assert that this source causes a variation strictly within the limits required by clinical investigations. Thus, this study contributes to improving the flexibility of RSA in clinical applications, making the technical requirements of the radiographic set-up less constraining. PMID:10672792

  18. Instinct in the '50s: the British reception of Konrad Lorenz's theory of instinctive behavior

    Microsoft Academic Search

    Paul E. Griffiths

    2004-01-01

    At the beginning of the 1950s most students of animal behavior in Britain saw the instinct concept developed by Konrad Lorenz in the 1930s as the central theoretical construct of the new ethology. In the mid 1950s J.B.S. Haldane made substantial efforts to undermine Lorenz's status as the founder of the new discipline, challenging his priority on key ethological concepts.

  19. Instinct in the '50s: the British reception of Konrad Lorenz's theory of instinctive behavior

    Microsoft Academic Search

    PAUL E. GRIFFITHS

    2004-01-01

    In 1950 most students of animal behavior in Britain saw the instinct concept developed by Konrad Lorenz in the 1930s as the central theoretical construct of the new ethology. In the early 1950s J.B.S Haldane made substantial efforts to undermine Lorenz's status, challenging his priority on key ethological concepts. Haldane was also critical of Lorenz's sharp distinction between instinctive and

  20. Wilhelm Weinberg’s Early Contribution to Segregation Analysis

    PubMed Central

    Stark, Alan; Seneta, Eugene

    2013-01-01

    Wilhelm Weinberg (1862–1937) is a largely forgotten pioneer of human and medical genetics. His name is linked with that of the English mathematician G. H. Hardy in the Hardy–Weinberg law, pervasive in textbooks on population genetics since it expresses stability over generations of zygote frequencies AA, Aa, aa under random mating. One of Weinberg’s signal contributions, in an article whose centenary we celebrate, was to verify that Mendel’s segregation law still held in the setting of human heredity, contrary to the then-prevailing view of William Bateson (1861–1926), the leading Mendelian geneticist of the time. Specifically, Weinberg verified that the proportion of recessive offspring genotypes aa in human parental crossings Aa × Aa (that is, the segregation ratio for such a setting) was indeed p=14. We focus in a nontechnical way on his procedure, called the simple sib method, and on the heated controversy with Felix Bernstein (1878–1956) in the 1920s and 1930s over work stimulated by Weinberg’s article. PMID:24018765

  1. [The response to Wilhelm Conrad Röntgen's discovery in Berlin].

    PubMed

    Schüttmann, W

    1995-01-01

    In early January 1896 Wilhelm Conrad Röntgen sent offprints to several colleagues of his to make them acquainted with his discovery of the X-rays. From January 5, 1896 newspapers started reporting on that discovery worldwide from Vienna. In several cities the news immediately set off corresponding scientific activities among specialists. This paper looks into such activities carried out in Berlin to show how promptly Röntgen's discovery was taken up, with a number of priorities having been set in the capital of the German Reich. The X-ray photographs which Röntgen had forwarded together with his offprints were displayed and discussed at a meeting of the Berlin Physical Society as early as on January 4, 1896, making his discovery known to the public for the first time. On January 6, 1896 the discovery and photographs were presented at a session of the Berlin Association of Internal Medicine and its diagnostic application was discussed in the medical community for the first time. A few days after that, the first photographs shot by other authors after Röntgen, and their diagnostic use, were demonstrated in Berlin. Finally, Röntgen's early visit to Emperor William II on January 12, 1896, which led to the speedy introduction of the X-day technique into German military medicine, is discussed in detail. PMID:7631379

  2. Development of Mirror Modules for the ART-XC Instrument aboard the Spectrum-Roentgen-Gamma Mission

    NASA Technical Reports Server (NTRS)

    Gubarev, Mikhail V.; Ramsey, Brian; O'Dell, Stephen L.; Elsner, Ronald F.; Kilaru, Kiranmayee; Atkins, Carolyn; Pavlinskiy, Mikhail N.; Tkachenko, Alexey V.; Lapshov, Igor Y.

    2013-01-01

    The Marshall Space Flight Center (MSFC) is developing x-ray mirror modules for the Astronomical Roengen Telescope- X-ray Concentrator (ART-XC) instrument on board the Spectrum-Roentgen-Gamma Mission. ART-XC will consist of seven co-aligned x-ray mirror modules with seven corresponding CdTe focal plane detectors. Each module provides an effective area of 65 sq cm at 8 keV, response out to 30 keV, and an angular resolution of 45 arcsec or better HPD. We will present a status of the ART x-ray module development at MSFC.

  3. Histrionicotoxins: Roentgen-Ray Analysis of the Novel Allenic and Acetylenic Spiroalkaloids Isolated from a Colombian Frog, Dendrobates histrionicus

    Microsoft Academic Search

    John W. Daly; Isabella Karle; Charles W. Myers; Takashi Tokuyama; James A. Waters; Bernhard Witkop

    1971-01-01

    The structures and absolute configuration of two unique alkaloids isolated from the Colombian frog, Dendrobates histrionicus, have been elucidated by Roentgen-ray (x-ray) crystallography. Histrionicotoxin is (2pR, 6S, 7pS, 8aS)-7-(cis-1-buten-3-ynyl)-8-hydroxy-2-(cis -2-penten-4-ynyl)-1-azaspiro[5.5] undecane, while in dihydro-isohistrionicotoxin the acetylenic 2-pentenynyl side chain is replaced by an allenic 2-(3,4 pentadienyl) substituent. Dendrobates histrionicus exhibits remarkable interpopulational variations in amounts and composition of skin toxins,

  4. Stranded in Vienna: Wilhelm Ebert (1871-1916) (German Title: Gestrandet in Wien: Wilhelm Ebert (1871-1916))

    NASA Astrophysics Data System (ADS)

    Schnell, Anneliese

    2011-08-01

    Wilhelm Ebert, born 1871 in Leipzig, did study astronomy for a short time in Geneva and afterwards in Munich where he finished his PhD. He spent most of his scientific life in France, working on problems of latitude determination and celestial mechanics, mostly at the Bureau des Longitudes in Paris. He was member of the Astronomische Gesellschaft. Probably he used some of the regular meetings of the AG to introduce his work to German astronomers - for a rather short time he worked at the observatories of Kiel, Straßburg and Greifswald. In Greifswald he qualified for giving university lectures and he started to collect astronomical instruments to establish an observatory. M. Loewy, at that time director of Paris observatory, asked him to come back to France, first he had a position at Nice Observatory and shortly afterwards in Paris again. In 1909 he decided to live in Vienna, once more he applied for the qualification of giving university lectures; this time the procedure was easy going. He announced quite a lot of courses but nobody knows if they really took place. From February 1915 until his death in November 1916 he stayed in a psychiatric hospital in Vienna suffering from a disease which was uncurable at that time. His wife tried to get some information about his death in 1937. Already at that time he was unknown to the members of Vienna Observatory.

  5. Wilhelm von Humboldt and the "Orient": On Edward W. Said's Remarks on Humboldt's Orientalist Studies

    ERIC Educational Resources Information Center

    Messling, Markus

    2008-01-01

    From an epistemological perspective, Wilhelm von Humboldt's studies on the Oriental and East Asian languages and writing systems (Egyptian hieroglyphs, Sanskrit, Chinese, Polynesian) raise the question of his position in the Orientalist discourse of his time. Said [Said, E.W., 1978. "Orientalism. Western Conceptions of the Orient, fourth ed."…

  6. Security in TINA S. Staamann 1 L. Butty'an 2 U. Wilhelm 1

    E-print Network

    Bencsáth, Boldizsár

    Security in TINA S. Staamann 1 L. Butty'an 2 U. Wilhelm 1 Swiss Federal Institute of Technology, and information era. Its characteristics most relevant for security are a variety of services, a multitude and provision, and the assumption of advanced costumer premises equipment. Concepts for its security

  7. Determinants The founder of the theory of determinants is usually taken to be Gottfried Wilhelm

    E-print Network

    Banaji,. Murad

    Wilhelm Leibniz (1646­1716), who also shares the credit for inventing calculus with Sir Isaac Newton (1643­1727 Julian dates are 25th December 1642 ­ 20th March 1727. At the time, the year in England started on 25thth January 1643 ­ 31st March 1727. But the Julian calendar was in use in England at the time, and his

  8. [Wilhelm Liepmann (1878-1939)--the fate of a gynecologist between the Kaiser Reich and Fascism].

    PubMed

    Schneck, P

    1984-01-01

    The paper gives a bioergographical survey on the German obstetrician and gynaecologist Wilhelm Liepmann. He was Ass. Professor at the Berlin university. Later he became director of the German Women-Institute, which was founded by the Hauptverband der Krankenkassen. In 1933 Liepmann had to emigrate to Turkey, where he got the chair of gynaecology at the university of Istanbul. PMID:6388195

  9. Histrionicotoxins: Roentgen-Ray Analysis of the Novel Allenic and Acetylenic Spiroalkaloids Isolated from a Colombian Frog, Dendrobates histrionicus

    PubMed Central

    Daly, John W.; Karle, Isabella; Myers, Charles W.; Tokuyama, Takashi; Waters, James A.; Witkop, Bernhard

    1971-01-01

    The structures and absolute configuration of two unique alkaloids isolated from the Colombian frog, Dendrobates histrionicus, have been elucidated by Roentgen-ray (x-ray) crystallography. Histrionicotoxin is (2pR, 6S, 7pS, 8aS)-7-(cis-1-buten-3-ynyl)-8-hydroxy-2-(cis-2-penten-4- ynyl)-1-azaspiro[5.5] undecane, while in dihydro-isohistrionicotoxin the acetylenic 2-pentenynyl side chain is replaced by an allenic 2-(3,4 pentadienyl) substituent. Dendrobates histrionicus exhibits remarkable interpopulational variations in amounts and composition of skin toxins, in behavior, and in phenotypic characters, aspects of which are illustrated in a color plate. The histrionico-toxins are the third class of alkaloids isolated from the defensive skin secretions of Neotropical (Dendrobatidae) frogs. Images PMID:5288773

  10. Histrionicotoxins: roentgen-ray analysis of the novel allenic and acetylenie spiroalkaloids isolated from a Colombian frog, Dendrobates histrionicus.

    PubMed

    Daly, J W; Karle, I; Myers, C W; Tokuyama, T; Waters, J A; Witkop, B

    1971-08-01

    The structures and absolute configuration of two unique alkaloids isolated from the Colombian frog, Dendrobates histrionicus, have been elucidated by Roentgen-ray (x-ray) crystallography. Histrionicotoxin is (2pR, 6S, 7pS, 8aS)-7-(cis-1-buten-3-ynyl)-8-hydroxy-2-(cis-2-penten-4- ynyl)-1-azaspiro[5.5] undecane, while in dihydro-isohistrionicotoxin the acetylenic 2-pentenynyl side chain is replaced by an allenic 2-(3,4 pentadienyl) substituent. Dendrobates histrionicus exhibits remarkable interpopulational variations in amounts and composition of skin toxins, in behavior, and in phenotypic characters, aspects of which are illustrated in a color plate. The histrionico-toxins are the third class of alkaloids isolated from the defensive skin secretions of Neotropical (Dendrobatidae) frogs. PMID:5288773

  11. Irradiation Investigations for TESLA and X-FEL experiments Dominik Konrad Rybkaa, Arkadiusz Kalickia, Krzysztof Pozniaka, Ryszard Romaniuka,

    E-print Network

    Irradiation Investigations for TESLA and X-FEL experiments at DESY Dominik Konrad Rybkaa, Arkadiusz-mail: drybka@ntmail.desy.de TESLA Report 2004-12 #12;The irradiation experiments could be divided into three for Proton Ring Accelerators, DESY ABSTRACT Electronic components during High Energy Physics experiments

  12. The Marshall Space Flight Center Development of Mirror Modules for the ART-XC Ins1rument Aboard the Spectrum-Roentgen-Gamma Mission

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; ODell, S. L.; Elsner, R.; Kilaru, K.; McCracken, J.; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.

    2012-01-01

    The Spectrum-Rontgen-Gamma (SRG) mission is a Russian-German X-ray astrophysical observatory that carries two co-aligned and complementary X-ray telescope systems. The primary instrument is the German-led extended ROentgen Survey with an Imaging Telescope Array (eROSITA), a 7-module X-ray telescope system that covers the energy range from 0.2-12 keV. The complementary instrument is the Russian-led Astronomical Roentgen Telescope -- X-ray Concentrator (ART-XC or ART), a 7-module X-ray telescope system that provides higher energy coverage, up to 30 keV (with limited sensitivity above 12 keV).

  13. Godfrey Hardy and Wilhelm Weinberg, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>Trial of Carrie Buck>prologueThe equilibrium model of G.N. Hardy and Wilhelm Weinberg showed that sterilization of affected individuals themselves would never appreciably reduce the incidence of mental disorders, which were thought to be inherited in a recessive manner. Only a hideously massive program Â? sterilizing or segregating the vast reservoir of heterozygous carriers predicted by the model Â? would have any hope of reducing the incidence of mental illness.

  14. Development of Mirror Modules for the ART-XC Instrument aboard the Spectrum-Roentgen-Gamma Mission

    NASA Technical Reports Server (NTRS)

    Gubarev, M; Ramsey, B.; O'Dell, S. L.; Elsner, R.; Kilaru, K.; McCracken, J.; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.; Atkins, C.; Zavlin, V.

    2013-01-01

    The Marshall Space Flight Center (MSFC) is developing x-ray mirror modules for the ART-XC instrument on board the Spectrum-Roentgen Gamma Mission. Four of those modules are being fabricated under a Reimbursable Agreement between NASA and the Russian Space Research Institute (IKI.) An additional three flight modules and one spare for the ART-XC Instrument are produced under a Cooperative Agreement between NASA and IKI. The instrument will consist of seven co-aligned x-ray mirror modules with seven corresponding CdTe focal plane detectors. Each module consists of 28 nested thin Ni/Co shells giving an effective area of 65 cm2 at 8 keV, response out to 30 keV, and an angular resolution of 45 arcsec or better HPD. Delivery of the first four modules is scheduled for November 2013, while the remaining three modules will be delivered to IKI in January 2014. We present a status of the ART x-ray module development at MSFC.

  15. Wilhelm von Waldeyer-Hartz (1836-1921): an anatomist who left his mark.

    PubMed

    Winkelmann, Andreas

    2007-04-01

    Wilhelm Waldeyer was anatomist, physiologist, and pathologist during the German Empire (the so-called Second Reich). His scientific career left many traces still noticeable today. Not only is he commemorated in "his" pharyngeal lymphoid ring and other eponyms, but he also coined an impressive range of successful medical terms, including "chromosome" and "neuron." Moreover, Waldeyer left truly physical traces by donating parts of his body to his own Institute of Anatomy in Berlin. His scientific production does, however, also include "pseudoscientific" works, notably his questionable research on African brains. PMID:17072873

  16. The Nazi symbiosis: politics and human genetics at the Kaiser Wilhelm Institute.

    PubMed

    Berez, Thomas M; Weiss, Sheila Faith

    2004-12-01

    The case of the Kaiser Wilhelm Institute for Anthropology, Human Heredity and Eugenics (KWIA), from its inception in Weimar Republic Germany to its apogee under the rule of the Third Reich, is an example of how politics and human heredity can function as mutually beneficial resources. Whether it was a result of the Nazi bureaucrats' desire to legitimize their racial policy through science, or the KWIA personnel's desire to secure more funding for their research, the symbiotic relationship that developed between human genetics and Nazi politics could help explain why many scientists in the Third Reich undertook research projects that wholly transgressed the boundaries of morally acceptable science. PMID:15571767

  17. In vivo kinematics of the cervical spine. Part I: Development of a roentgen stereophotogrammetric technique using metallic markers and assessment of its accuracy.

    PubMed

    Lee, S; Harris, K G; Nassif, J; Goel, V K; Clark, C R

    1993-12-01

    A technique for simultaneous roentgen stereophotogrammetry (RS) was developed, and its accuracy was assessed. In vitro models fabricated from dried cadaveric C4 and C5 vertebrae were used to simulate the motion behavior of the cervical spine. Metallic markers made of Vitallium beads (diameter < 0.3 mm) were implanted into the posterior and anterior surfaces of each vertebra at surgically accessible locations to simulate the bead placement for both posterior and anterior surgical approaches to the cervical spine. A series of roentgen stereo pairs were obtained to systematically assess the accuracy (validity) of displacement measurements in anteroposterior (AP) translation, axial rotation, and flexion/extension. In addition, the effects of soft tissue density on the accuracy of the system were investigated by obtaining a series of roentgen stereo pairs with the experimental model immersed in a water bath. The coordinates of the metallic markers on the radiographs were then digitized by two raters who were not informed of the actual motion (i.e., blind study). The results indicated a high accuracy throughout the study. Overall root mean square errors were 0.07 mm for AP translation, 0.08 degrees for axial rotation, and 0.14 degrees for flexion/extension. The corresponding accuracy estimates (R2 values by linear regression analysis) were very high (0.992, 0.998, and 0.995) when the measurement results were compared with the actual displacements. The water bath did not affect measurement accuracy, indicating that soft tissue density should have little effect on the accuracy of the technique for in vivo applications. This system appears to be an accurate and reliable method for assessment of simulated in vivo cervical spine motion, regardless of the rater. The technique has been further used in in vivo assessment of cervical spine kinematics in one patient to confirm the efficacy of the developed technique. PMID:8130401

  18. [Psychoanalysis during the Nazi era. Contemporary consequences of a historical controversy: the Wilhelm Reich "case"].

    PubMed

    Nitzschke, B

    1999-01-01

    The paper sheds light on the extent of collaboration between the pre-World War II German Psychoanalytic Society (DPG) and the Nazi regime. This is shown by the story of the expulsion of Wilhelm Reich from membership in the DPG, at Freud's own bid. A leading German psychoanalyst, Carl Müller-Braunschweig, published the paper "Psychoanalysis and Weltanschauung" in the fanatically "national" (so-called "völkisch") Nazi propaganda organ Reichswart in 1993 following consultations with officials of the International Psychoanalytic Association (IPA) who endorsed these policies. This paper by Müller-Braunschweig was used both to prevent the possible outlawing of psychoanalysis by the Nazis and to deny official DPG support to Wilhelm Reich and the group of leftist-oriented IPA analysts who joined forces with him in opposing Nazi ideology. The paper concludes with examples from post-1945 historiography showing how the exclusion of Reich and the related DPG/IPA compromise and "appeasement" policy were either ignored or disclaimed. PMID:10373768

  19. Replication and Pedagogy in the History of Psychology V: The Metronome and Wilhelm Wundt's Search for the Components of Consciousness

    ERIC Educational Resources Information Center

    Ayala, Christopher; Borawski, Steven; Miller, Jonathon

    2008-01-01

    Wilhelm Wundt (1832-1920) believed that consciousness was represented by the interconnection of psychical processes comprised of temporal elements and compounds. To explore these processes, Wundt used a metronome to measure the amount of information that passed into consciousness across time. The current project replicated some of his procedures,…

  20. Roentgen video-absorptiometry

    Microsoft Academic Search

    C R Wilson; E L Ritman; R E Sturm

    1974-01-01

    Discusses the feasibility of performing absorptiometric measurements using a televised image-intensified fluoroscopic system. The system consists of an X-ray generator, image intensifier, TV camera and A\\/D convertor under computer control for digitizing the video signals. Preliminary experiments have been performed to evaluate the system's potential for determining the mass of bone mineral in the axial skeleton in vivo. All absorptiometric

  1. DFVLR Roentgen satellite

    NASA Technical Reports Server (NTRS)

    1987-01-01

    The entire engineering model is being concluded in the shuttle configuration. The flight model components are extensively included in the shuttle configuration and will not be changed until after a binding Atlas/Centaur (A/C) booster decision for the A/C configuration. The urgent projects for the altering of the shuttle configuration on the A/C configuration must be carried out before a binding Atlas/Centaur booster decision is completed. All other modification projects are being delayed until the presentation of a binding booster decision.

  2. Roentgen Satellite (ROSAT)

    NASA Technical Reports Server (NTRS)

    1990-01-01

    The Objectives of NASA's participation in the ROSAT mission are to: a) measure the spatial, spectral, and temporal characteristics of discrete cosmic sources including normal stars, collapsed stellar objects, and active galactic nuclei; b) perform spectroscopic mapping of extended X-ray sources including supernova remnants, galaxies, and clusters of galaxies; and c) conduct the above observations of cosmic sources with unprecedented sensitivity and spatial resolution over the 0.1 - 2.0 keV energy band.

  3. The holist tradition in twentieth century genetics. Wilhelm Johannsen's genotype concept

    PubMed Central

    Roll-Hansen, Nils

    2014-01-01

    The terms ‘genotype’, ‘phenotype’ and ‘gene’ originally had a different meaning from that in the Modern Synthesis. These terms were coined in the first decade of the twentieth century by the Danish plant physiologist Wilhelm Johannsen. His bean selection experiment and his theoretical analysis of the difference between genotype and phenotype were important inputs to the formation of genetics as a well-defined special discipline. This paper shows how Johannsen's holistic genotype theory provided a platform for criticism of narrowly genocentric versions of the chromosome theory of heredity that came to dominate genetics in the middle decades of the twentieth century. Johannsen came to recognize the epoch-making importance of the work done by the Drosophila group, but he continued to insist on the incompleteness of the chromosome theory. Genes of the kind that they mapped on the chromosomes could only give a partial explanation of biological heredity and evolution. PMID:24882823

  4. Integriertes Informationsmanagement an der Westfälischen Wilhelms-Universität Münster - Das Projekt MIRO

    NASA Astrophysics Data System (ADS)

    Vogl, Raimund; Gildhorn, Antje; Labitzke, Jörg; Wibberg, Michael

    An der Westfälischen Wilhelms-Universität Münster (WWU) wurde bereits 1996 ein tragfähiges, kooperativ ausgerichtetes System der IT-Governance im Zusammenspiel zentraler und dezentraler IT-Leistungserbringer etabliert. Um den Anforderungen an ein integriertes Informationsmanagement im Überlappungsfeld von Information, Kommunikation und Medien (IKM) durch das Zusammenspiel der zentralen Einrichtungen Universitätsverwaltung (UniV), Universitäts- und Landesbibliothek (ULB) und Zentrum für Informationsverarbeitung (ZIV) gerecht zu werden, wurde 2003 der IKM-Service institutionalisiert. In diesem Rahmen wurde das Projekt Münster Information System for Research and Organization (MIRO) entwickelt, das als Leistungszentrum für Forschungsinformation von der DFG gefördert wird. Die bisherigen Projekterfahrungen, erreichten Ziele und verbleibenden Aufgaben werden dargestellt. Im Projektverlauf haben sich insbesondere die etablierten IT-Governance und Versorgungs-Strukturen sowie die Unterstützung der Hochschulleitung als essentielle Erfolgskriterien erwiesen.

  5. The Marshall Space Flight Center Development of Mirror Modules for the ART-XC Instrument aboard the Spectrum-Roentgen-Gamma Mission

    NASA Technical Reports Server (NTRS)

    Gubarev, Mikhail V.; Ramsey, B.; ODell, S. L.; Elsner, R.; Kilaru, K.; McCracken, J.; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.

    2012-01-01

    The Marshall Space Flight Center (MSFC) is developing x-ray mirror modules for the ART-XC instrument on board the Spectrum-Roentgen Gamma Mission under a Reimbursable Agreement between NASA and the Russian Space Research Institute (IKI.) ART-XC will consist of seven co-aligned x-ray mirror modules with seven corresponding CdTe focal plane detectors. Currently, four of the modules are being fabricated by the Marshall Space Flight Center (MSFC.) Each MSFC module consist of 28 nested Ni/Co thin shells giving an effective area of 65 sq cm at 8 keV, response out to 30 keV, and an angular resolution of 45 arcsec or better HPD. Delivery of these modules to the IKI is scheduled for summer 2013. We present a status of the ART x-ray modules development at the MSFC.

  6. Biplane roentgen videometric system for dynamic, 60/sec, studies of the shape and size of circulatory structures, particularly the left ventricle.

    NASA Technical Reports Server (NTRS)

    Ritman, E. L.; Sturm, R. E.; Wood, E. H.

    1973-01-01

    An operator interactive video system for the measurement of roentgen angiographically outlined structures is described. Left ventricular volume and three-dimensional shapes are calculated from up to 200 pairs of diameters measured from ventriculograms at the rate of 60 pairs of biplane images per second. The accuracy and reproducibility of volumes calculated by the system were established by analysis of roentgenograms of inanimate objects of known volume and by comparison of left ventricular stroke volumes calculated by the system with the stroke volumes calculated by an indicator-dilution technique and an aortic root electromagnetic flowmeter. Computer-generated display of the large amounts of data obtained by the videometry system is described.

  7. Genetics as a modernization program: biological research at the Kaiser Wilhelm Institutes and the political economy of the Nazi State.

    PubMed

    Gausemeier, Bernd

    2010-01-01

    During the Third Reich, the biological institutes of the Kaiser Wilhelm Society (KWG, Kaiser-Wilhelm-Gesellschaft) underwent a substantial reorganization and modernization. This paper discusses the development of projects in the fields of biochemical genetics, virus research, radiation genetics, and plant genetics that were initiated in those years. These cases exemplify, on the one hand, the political conditions for biological research in the Nazi state. They highlight how leading scientists advanced their projects by building close ties with politicians and science-funding organizations and companies. On the other hand, the study examines how the contents of research were shaped by, and how they contributed to, the aims and needs of the political economy of the Nazi system. This paper therefore aims not only to highlight basic aspects of scientific development under Nazism, but also to provide general insights into the structure of the Third Reich and the dynamics of its war economy. PMID:20957826

  8. PREFACE: The 395th Wilhelm and Else Heraeus Seminar: `Time-dependent phenomena in Quantum Mechanics'

    NASA Astrophysics Data System (ADS)

    Kleber, Manfred; Kramer, Tobias

    2008-03-01

    The 395th Wilhelm and Else Heraeus Seminar: `Time-dependent phenomena in Quantum Mechanics' took place at the Heinrich Fabri Institute in Blaubeuren, Germany, 12-16 September 2007. The conference covered a wide range of topics connected with time-dependent phenomena in quantum mechanical systems. The 20 invited talks and 15 short talks with posters at the workshop covered the historical debate between Schrödinger, Dirac and Pauli about the role of time in Quantum Mechanics (the debate was carried out sometimes in footnotes) up to the almost direct observation of electron dynamics on the attosecond time-scale. Semiclassical methods, time-delay, monodromy, variational principles and quasi-resonances are just some of the themes which are discussed in more detail in the papers. Time-dependent methods also shed new light on energy-dependent systems, where the detour of studying the time-evolution of a quantum states allows one to solve previously intractable problems. Additional information is available at the conference webpage http://www.quantumdynamics.de The organizer would like to thank all speakers, contributors, session chairs and referees for their efforts in making the conference a success. We also gratefully acknowledge the generous financial support from the Wilhelm and Else Heraeus Foundation for the conference and the production of this special volume of Journal of Physics: Conference Series. Manfred Kleber Physik Department T30, Technische Universität München, 85747 Garching, Germany mkleber@ph.tum.de Tobias Kramer Institut I: Theoretische Physik, Universität Regensburg, 93040 Regensburg, Germany tobias.kramer@physik.uni-regensburg.de Guest Editors Conference photograph Front row (from left): W Schleich, E J Heller, J B Delos, H Friedrich, K Richter, M Kleber, P Kramer, M Man'ko, A del Campo, V Man'ko, M Efremov, A Ruiz, M O Scully Middle row: A Zamora, R Aganoglu, T Kramer, J Eiglsperger, H Cruz, P Raab, I Cirac, G Muga, J Larson, V Dodonov, W Becker Back row: A Eckardt, A Siddiki, K Vafayi, M Holthaus, E Räsänen, M Rodriguez, O Kullie, D Miloševi?, J Briggs, A Ribeiro, (not in the picture W Zwerger)

  9. From Wilhelm von Humboldt to Hitler-are prominent people more prone to have Parkinson's disease?

    PubMed

    Horowski; Horowski; Calne; Calne

    2000-10-01

    We describe Parkinsonism in prominent people, where Wilhelm von Humboldt and Adolf Hitler provide just two spectacular, opposing examples. In both of them, there is little if any evidence that the disease did influence their life ambitions, methods of achieving them or cognitive function in general. Thus, Hitler's Parkinsonism should remain a 'footnote' to history, and historians should acknowledge that in his last years, his trembling, his curbed posture, his slow walking, mask-like face and low voice did not indicate remorse, fear or depression as a consequence of his crimes, but were mere expressions of his disease which, until the end, had no impact on his intellectual skills and methods. The apparently higher incidence of Parkinsonism in prominent people may be just due to their higher visibility, or a consequence of disease-related personality traits (e.g. ambition, perfectionism, rigidity) which may contribute to becoming, e.g., a prominent authoritarian person. Perhaps even some early behaviour pattern (such as repressed emotions or acting in public-which could even increase the risk of some infection) contributes to a greater vulnerability for developing Parkinsonism. Further studying other prominent cases might lead us to better understanding of risk factors and the expression of early Parkinsonism. PMID:10900395

  10. Physiological optics, cognition and emotion: a novel look at the early work of Wilhelm Wundt.

    PubMed

    Wassmann, Claudia

    2009-04-01

    The German physiologist Wilhelm Wundt, who later founded experimental psychology, arguably developed the first modern scientific conception of emotion. In the first edition of Vorlesungen über die Menschen- und Thierseele (Lectures on human and animal psychology), which was published in 1863, Wundt tried to establish that emotions were essential parts of rational thought. In fact, he considered them unconscious steps of decision-making that were implied in all processes of conscious thought. His early work deserves attention not only because it is the attempt to conceptualize cognition and emotion strictly from a neural point of view but also because it represents the very foundation of the debate about the nature of emotion that revolved around William James' theory of emotion during the 1890s. However, this aspect of his work is little known because scholars who have analyzed Wundt's work focused on his late career. Furthermore, historical analysis interpreted Wundt's work within a philosophical framework, rather than placing it in the context of German medical and physiological research in which it belongs. In addition, Wundt's early works are hardly available to an English speaking audience because they were never translated. PMID:18948411

  11. Discovering environmental cancer: Wilhelm Hueper, post-World War II epidemiology, and the vanishing clinician's eye.

    PubMed

    Sellers, C

    1997-11-01

    Today, our understanding of and approach to the exogenous causes of cancer are dominated by epidemiological practices that came into widespread use after World War II. This paper examines the forces, considerations, and controversies that shaped postwar risk factor epidemiology in the United States. It is argued that, for all of the new capabilities it brought, this risk factor epidemiology has left us with less of a clinical eye for unrecognized cancer hazards, especially from limited and localized exposures in the work-place. The focus here is on Wilhelm Hueper, author of the first textbook on occupational cancer (1942). Hueper became the foremost spokesman for earlier identification practices centering on occupational exposures. The new epidemiological methods and associated institutions that arose in the 1940s and 1950s bore an unsettled relation to earlier claims and methods that some, Hueper among them, interpreted as a challenge. Hueper's critique of the new epidemiology identified some of its limitations and potentially debilitating consequences that remain with us today. PMID:9366640

  12. Kaiser Wilhelm Institute plaque, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>taking the torch English translation: This building was occupied from 1927-1945 by the Kaiser-Wilhelm-Institute for Anthropology, Human Genetics, and Eugenics. Under the directorship of Eugen Fischer (1927-1942) and Otmar von Verschuer (1942-1945) the institute provided scientific justifications for the inhuman race and birth policies of the NS regime.  It provided expert opinions on issues concerning family records and forced sterilizations, and instructed SS physicians and judges who presided over cases concerning genetic "health." Thus, Fischer, Verschuer, and their staff actively contributed to the selection of "unworthy life" and murder. Joseph Mengele, a student and close collaborator of von Verschuer, planned his twin studies here, and organs removed from selected and murdered prisoners were examined in this building. Mengele conducted his research with approval by the Reichsforschungsrat (Reich Research Council) and financed by the Deutsche Forschungsgemeinschaft (German Science Foundation) in the Auschwitz concentration camp. These crimes remain unpersecuted and unpunished. Von Verschuer taught until 1965 as Professor for Genetics in Münster, Germany. Scientists are to be held responsible for the content and consequences of their research.

  13. Soft x-ray calibration of the Co/C multilayer mirrors for the Objective Crystal Spectrometer on the Spectrum Roentgen-Gamma satellite

    NASA Astrophysics Data System (ADS)

    Abdali, Salim; Tarrio, Charles; Christensen, Finn E.; Schnopper, Herbert W.

    1996-07-01

    The objective crystal spectrometer (OXS) on the forthcoming Spectrum-Roentgen-Gamma satellite is designed to carry three kinds of crystals: LiF(220), Si(111) and RAP(001), placed in front of the SODART telescope. Thirty six super polished (RMS roughness < 0.1nm) Si(111) substrates were coated with 65-80 periods of Co/C multilayers using electron beam evaporation deposition combined with ion polishing for the metal layers. These crystals are to be used in the energy band immediately below the C-K absorption edge of 0.284 keV. Because the crystals are to be assembled as one crystal on the OXS, the reflectivity performance as a function of energy and angle of incidence of all crystals has been measured using line radiation from an x-ray tube which provides 1.487 keV and 0.277 keV and using synchrotron radiation from 0.16 keV to 0.28 keV at the Synchrotron Ultraviolet Radiation electron storage ring a t the National Institute of Standards and Technology. The results from these measurements are discussed.

  14. A plague outside the Kaiser Wilhelm Institute, James WatsonSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    Interviewee: James Watson DNAi Location:Chronicle>In the third reich>taking the torch Kaiser Wilhelm Institute The Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics attempted broad description of human variation and reproduction. Taking the torch By the mid-1930s, the scientific basis of negative eugenics had been discredited. The well-documented phenomenon of hybrid vigor refuted notions of racial superiority, while Hardy-Weinberg equilibrium showed that dysgenic genes do not increase in a population. Members of Thomas Hunt Morgan's group showed that the genotype-phenotype relationship is highly variable, while Lionel Penrose found that most cases in a mental institution in Colchester, England resulted from a combination of genetic, environmental, and pathological causes. After a 1935 panel concluded that the work of the Eugenics Record Office was without scientific merit, eugenics research was phased out, and the facility was closed in December 1939. In the meantime, eugenics was gathering steam in Germany ? with help from America. In 1927, the Rockefeller Foundation provided funds for the constructon of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics in Berlin. The director, appropriately named Eugen Fischer, collaborated with Charles Davenport in the management of the International Federation of Eugenics Organizations. On the occasion of the International Eugenics Congress in Rome, in 1929, they drafted a memo to Mussolini encouraging him to move ahead on eugenics with "maximum speed." In 1936, Harry Laughlin's contributions to race hygiene in Germany were recognized with an honorary degree from the University of Heidelberg. Hitler read Fischer's textbook Principles of Human Heredity and Race Hygiene while in prison at Landsberg and used eugenical notions to support the ideal of a pure Aryan society in his manifesto, Mein Kampf (My Struggle). When he came to power in 1933, Hitler charged the medical profession with the task of implementing a national program of race hygiene ? a key element of which was passage of an act permitting involuntary sterilization of feebleminded, mentally ill, epileptics, and alcoholics. Within a year, more than 50,000 sterilizations were ordered, and doctors competed to fill sterilization quotas. By the outbreak of the Second World War in 1939, an estimated 400,000 people had been sterilized. James Watson discusses the founding of the Kaiser Wilhelm Institute for Anthropology, Human Genetics, and Eugenics, the German equivalent of the Eugenics Record Office.

  15. Replication and Pedagogy in the History of Psychology V: The Metronome and Wilhelm Wundt's Search for the Components of Consciousness

    NASA Astrophysics Data System (ADS)

    Ayala, Christopher; Borawski, Steven; Miller, Jonathon

    2008-05-01

    Wilhelm Wundt (1832 1920) believed that consciousness was represented by the interconnection of psychical processes comprised of temporal elements and compounds. To explore these processes, Wundt used a metronome to measure the amount of information that passed into consciousness across time. The current project replicated some of his procedures, to better understand the role of introspection and the complexity of the metronome task for experimenters and observers. The results of the replication were mixed, but the replication helped provide insights into Wundt’s procedures and their relationship to his theories.

  16. Wilhelm Winkler (1842-1910) - a Thuringian private astronomer and maecenas

    NASA Astrophysics Data System (ADS)

    Weise, Wilfried; Dorschner, Johann; Schielicke, Reinhardt E.

    Wilhelm Winkler was born in 1842 in Eisenberg, Thuringia, as the son of a lawyer. After attending the trading high school in Gera, Winkler worked as a merchant in Eisenberg, following in the footsteps of his grandfather. In 1875 he gave up this trade and devoted his time entirely to astronomy. Advised by Carl Bruhns, director of the Leipzig University Observatory, he established an observatory on his estate in Gohlis near Leipzig. From 1878 Winkler regularly observed sunspots; other fields of his observational interests were comets, occultations of stars by the Moon, and Jupiter's satellites. In 1887 he went to Jena, where he contacted Ernst Abbe, who was the head of the Jena observatory, too. For some years, Winkler's instruments were used in the new observatory erected by Abbe, which replaced the old Ducal Observatory of the Goethe era. Winkler donated the precision pendulum clock and some other instruments to this observatory. He also offered his observational assistance whenever it was wanted. In 1893 Winkler built up his own observatory in Jena and published annual reports on his work in the Vierteljahrsschrift of the Astronomische Gesellschaft. His observational results mainly appeared in the journal Astronomische Nachrichten. In 1902 he was awarded an honorary doctor's degree by the Philosophical Faculty of Jena University. However, at that time his physical constitution began gradually to fade. He lost his left eye due to a sarcoma, and finally he died at the age of 68. In his will, he left 100 000 Mark in form of securities to Jena University (Winkler Foundation). The University Observatory got his 4.5 m dome, the transport of which from his residence to the final site was also paid for by him, several instruments, and a lot of books. In 1936 Winkler's dome was closed by the University. The observatory was transferred from the University to the Zeiss works in exchange for the observatory in the Jena Forst. Zeiss sponsored the reconstruction of the old dome and its equipment with a telescope and, thus, laid the base for the modern Urania Popular Observatory. Please note: The printed version contains an error: Unfortunately, Reinhard E. Schielicke was not indicated as co-author of this paper.

  17. To Have or Not to Have Sex in Critical Theory: Sexuality in the Early Writings of Wilhelm Reich and Erich Fromm

    E-print Network

    King, C. Richard

    1992-04-01

    This paper explores the relationship between society and sexuality, which is overlooked in the later phases of CriticalTheory. The author begins with a discussion of the role of sexuality in the writings of Wilhelm Reich and Erich Fromm. Reich...

  18. Predicting 3D pose in partially overlapped X-ray images of knee prostheses using model-based Roentgen stereophotogrammetric analysis (RSA).

    PubMed

    Hsu, Chi-Pin; Lin, Shang-Chih; Shih, Kao-Shang; Huang, Chang-Hung; Lee, Chian-Her

    2014-12-01

    After total knee replacement, the model-based Roentgen stereophotogrammetric analysis (RSA) technique has been used to monitor the status of prosthetic wear, misalignment, and even failure. However, the overlap of the prosthetic outlines inevitably increases errors in the estimation of prosthetic poses due to the limited amount of available outlines. In the literature, quite a few studies have investigated the problems induced by the overlapped outlines, and manual adjustment is still the mainstream. This study proposes two methods to automate the image processing of overlapped outlines prior to the pose registration of prosthetic models. The outline-separated method defines the intersected points and segments the overlapped outlines. The feature-recognized method uses the point and line features of the remaining outlines to initiate registration. Overlap percentage is defined as the ratio of overlapped to non-overlapped outlines. The simulated images with five overlapping percentages are used to evaluate the robustness and accuracy of the proposed methods. Compared with non-overlapped images, overlapped images reduce the number of outlines available for model-based RSA calculation. The maximum and root mean square errors for a prosthetic outline are 0.35 and 0.04 mm, respectively. The mean translation and rotation errors are 0.11 mm and 0.18°, respectively. The errors of the model-based RSA results are increased when the overlap percentage is beyond about 9%. In conclusion, both outline-separated and feature-recognized methods can be seamlessly integrated to automate the calculation of rough registration. This can significantly increase the clinical practicability of the model-based RSA technique. PMID:25293422

  19. Kaiser Wilhelm Institute and plaque, still image with detailSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>taking the torch Eugenics was gathering steam in Germany Â? with help from America. In 1927, the Rockefeller Foundation provided funds for the constructon of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics in Berlin. The director, appropriately named Eugen Fischer, collaborated with Charles Davenport in the management of the International Federation of Eugenics Organizations. On the occasion of the International Eugenics Congress in Rome, in 1929, they drafted a memo to Mussolini encouraging him to move ahead on eugenics with "maximum speed." In 1936, Harry Laughlin's contributions to race hygiene in Germany were recognized with an honorary degree from the University of Heidelberg.

  20. James Watson at the former Kaiser Wilhelm Institute, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>taking the torch In the late 1920s, eugenics was gathering steam in Germany Â? with help from America. In 1927, the Rockefeller Foundation provided funds for the constructon of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics in Berlin. The director, appropriately named Eugen Fischer, collaborated with Charles Davenport in the management of the International Federation of Eugenics Organizations. On the occasion of the International Eugenics Congress in Rome, in 1929, they drafted a memo to Mussolini encouraging him to move ahead on eugenics with "maximum speed." In 1936, Harry Laughlin's contributions to race hygiene in Germany were recognized with an honorary degree from the University of Heidelberg.

  1. Human Genetics and Politics as Mutually Beneficial Resources: The Case of the Kaiser Wilhelm Institute for Anthropology, Human Heredity and Eugenics During the Third Reich

    Microsoft Academic Search

    Sheila Faith Weiss

    2006-01-01

    This essay analyzes one of Germany’s former premier research institutions for biomedical research, the Kaiser Wilhelm Institute\\u000a for Anthropology, Human Heredity and Eugenics (KWIA) as a test case for the way in which politics and human heredity served\\u000a as resources for each other during the Third Reich. Examining the KWIA from this perspective brings us a step closer to answering

  2. Treating Epiphora in Adults With the Wilhelm Plastic Nasolacrimal Stent: Mid-Term Results of a Prospective Study

    SciTech Connect

    Ciampi, Juan J., E-mail: juanciampi@hotmail.com; Lanciego, Carlos [Hospital Virgen de la Salud, Complejo Hospitalario de Toledo, Interventional Radiology Unit, Department of Radiology (Spain); Navarro, Sofia [Hospital Virgen de la Salud, Ophthalmology Service (Spain); Cuena, Rafael [Research-Statistics Unit of the Hospital Virgen de la Salud, Complejo Hospitalario de Toledo (Spain); Velasco, Javier [Hospital Virgen de la Salud, Complejo Hospitalario de Toledo, Interventional Radiology Unit, Department of Radiology (Spain); Perea, Miguel [Hospital Virgen de la Salud, Ophthalmology Service (Spain); Garcia-Garcia, Lorenzo [Hospital Virgen de la Salud, Complejo Hospitalario de Toledo, Interventional Radiology Unit, Department of Radiology (Spain)

    2011-02-15

    The objective of the present study was to evaluate, in a prospective, single-center study, the effectiveness of the Wilhelm-type stent used in interventional radiology for the management of epiphora. Patients (n = 104; mean age 64 [range 25-88]; 33 male and 71 female) with severe epiphora had the stents inserted (135 stents in 115 eyes) to treat obstruction of the nasolacrimal system. The etiology of the obstruction was idiopathic in 83 cases, chronic dacryocystitis in 31, cases and postsurgical status in 1 case. The overall technical success rate of stent placement was near 94%. Resolution of epiphora was complete in 105 cases and partial in 3 cases. During a mean 13-month follow-up (range 1 week to 28 months), the median duration of primary patency was 11 months, and the percentage of patency at 6 months was 60.8%, at 1 year was 39.6%, and at 2 years was 25%. Stents malfunctioned in 54 cases, and all were easily withdrawn except in 1 case. Of these 27 cases, patency recovered spontaneously in 9 and by way of a second stent in 18. Secondary patency was 50%. Factors presdisposing to lower primary patency are inflammatory etiology and location of the obstruction. The benefit of stent deployment is clear with respect to the resolution of epiphora in candidate patients for percutaneous treatment. Technical and/or design improvements would be welcomed.

  3. Radiation-Induced Meningioma: Historical Perspective, Presentation, Management, and Genetics

    Microsoft Academic Search

    Yigal Shoshan; Sergey Spektor; Guy Rosenthal; Shifra Fraifeld; Felix Umansky

    On November 8, 1895, while doing cathode ray research, Wilhelm Conrad Roentgen (1845–1923) discovered the x-ray. By mid-January\\u000a 1896, scientific and news articles on x-rays appeared in Lancet, the British Medical Journal, Nature, Science, and leading newspapers worldwide. Nearly 1000 articles and several textbooks on x-rays and radioactivity were published\\u000a in 1896.1 A few months after Roentgen’s breakthrough, Henri Becquerel

  4. Wilhelm Schlag Bibliography

    E-print Network

    Schlag, Wilhelm

    ¨older continuity of the integrated density of states for quasiperiodic Schr¨odinger equations and averages convolutions and an intermediate value theorem for entropies of K-partitions," J. Anal. Math. 87 (Wolff potentials," Comm. Math. Phys. 223, 47­65 (2001). 20. (with I. Rodnianski and A. Soffer) "Asymptotic

  5. [The history of the Kaiser Wilhelm Society during the Third Reich. Interim reports of the president's commission of the Max Planck Society].

    PubMed

    Weber, M M

    2002-11-01

    In 1997 the Max Planck Society set up a presidential commission to do research on the historical development of its precursor organization, the Kaiser Wilhelm Society (KWG), during the Third Reich. This paper presents some of the important results given in the interim reports of this commission that are relevant to psychiatry. It focuses on brain research, anthropology, psychiatric genetics, and the role of the well-known biochemist Adolf Butenandt. In general, the interim reports reflect the numerous links between the biomedical research of the KWG and the institutions of the National Socialist (Nazi) state. However, they do not yet allow a final historical assessment as to the complex situation of this field of research during National Socialism. PMID:12430055

  6. A review of the history of U.S. radiation protection regulations, recommendations, and standards.

    PubMed

    Jones, Cynthia G

    2005-06-01

    Shortly after the discovery of x rays by Wilhelm Konrad Roentgen in 1895, and the isolation of the element radium by Pierre and Marie Curie three years later, the fascination with and potential for an array of uses of ionizing radiation in medicine, science, and technology was born. As with any new technology, there was a need to balance both the beneficial and potential detrimental effects of uses of these new technologies for the advancement of humankind. In the early days, radiation hazards were not well understood. Over the decades increasing concerns in the scientific community and lay population demanded that standardized guidance and recommendations be developed for the use of ionizing radiation. Today, U.S. radiation protection standards and recommendations to protect the occupational worker, members of the general public, and the environment are numerous and complex. This review summarizes the history of the development and application of radiation protection standards and regulations to assure the safe use of radiation and radioactive materials. The evolution and roles of international and national scientific recommending and regulatory organizations that shape U.S. radiation protection policy are described and discussed. PMID:15891462

  7. Human genetics and politics as mutually beneficial resources: The case of the Kaiser Wilhelm Institute for Anthropology, Human Heredity and Eugenics during the Third Reich.

    PubMed

    Weiss, Sheila Faith

    2006-01-01

    This essay analyzes one of Germany's former premier research institutions for biomedical research, the Kaiser Wilhelm Institute for Anthropology, Human Heredity and Eugenics (KWIA) as a test case for the way in which politics and human heredity served as resources for each other during the Third Reich. Examining the KWIA from this perspective brings us a step closer to answering the questions at the heart of most recent scholarship concerning the biomedical community under the swastika: (1) How do we explain why the vast majority of German human geneticists and eugenicists were willing to work for the National Socialist state and, at the very least, legitimized its exterminationist racial policy; and (2) what accounts for at least some of Germany's most renowned medically trained professionals' involvement in forms of morally compromised science that wholly transcend the bounds of normal scientific practice? Although a complete answer to this question must await an examination of other German biological research centers, the present study suggests that during the Nazi period the symbiotic relationship between human genetics and politics served to radicalize both. The dynamic between the science of human heredity and Nazi politics changed the research practice of some of the biomedical sciences housed at the KWIA. It also simultaneously made it easier for the Nazi state to carry out its barbaric racial program leading, finally, to the extermination of millions of so-called racial undesirables. PMID:17212034

  8. THE ROENTGEN FEATURES OF EATON AGENT PNEUMONIA

    Microsoft Academic Search

    DONALD H. HEBERT

    F EW reports have appeared in the litera- ture in recent years about the roent- genographic findings in Eaton agent pneu- monia. Much work has been done, however, on the mycoplasma organisms and their role as pathogens in human disease. The history of this work was succinctly reviewed by Shepard and Calvy7 and will be briefly alluded to further on.

  9. Investigation relative to the Roentgen Satellite (ROSAT)

    NASA Technical Reports Server (NTRS)

    Elvis, Martin S.; Primini, Francis A.; Fabbiano, Guiseppina; Harris, Daniel E.; Jones-Foreman, Christine; Trinchieri, Ginevra; Golub, Leon; Bookbinder, Jay; Seward, Frederick D.; Zombeck, Martin V.

    1994-01-01

    Reports include: High Resolution Observations of the Central Region of M31; The X-ray Emission of Low-X-ray-Luminosity Early-Type Galaxies: Gas Versus Compact Sources; Interaction Between Cluster Gas and Radio Features of Cygnus A; Hot Gas and Dark Halos in Early-Type Galaxies; A Gravitational Lens in X-rays - 0957+461; How Massive are Early-Type Galaxies?; Three Crab-Like SNR in the Large Magellanic Cloud; and Soft X-ray Emission from Boundary Layers in Cataclysmic Variables. Papers submitted to the Astrophysical Journal are attached.

  10. [Conventional roentgen diagnosis of induratio penis plastica].

    PubMed

    Platzbecker, H; Köhler, K; Böhm, W D

    1991-01-01

    The therapeutic decision in the management of Peyronie's disease depends on the confirmation or exclusion of inflammatory activity. Plain films of the penis in mammographic technique demonstrate the presence of fibrotic or calcified areas, in which conservative treatment is not more effective. In twelve out of 32 patients, we found calcifications of various size. PMID:1799848

  11. Friedrich-Wilhelms-Universitat Bonn

    E-print Network

    Clausen, Michael

    Nachmittagssitzung (Kurzvortr¨age) 14:00 - 14:20 Melody Extraction: A Blind Source Separation Approach Shankar Vembu.09.2005 Zusammenfassung Die Bereiche Musik und Audio haben sich in den letzten Jahren zu wichtigen Anwen- dungsdom Musik- und Audio-Content-Management, Musik Informationssysteme und -bibliotheken, Automatische

  12. Radiation in the universe

    NASA Technical Reports Server (NTRS)

    Stuhlinger, Ernst; Truemper, Joachim; Weisskopf, Martin

    1992-01-01

    When Wilhelm Conrad Roentgen discovered radiation one hundred years ago, it seemed that what was discovered was one of the rarest and most volatile members of the family of the basic modules of our natural world. Today cosmologists report that a substantial part of the universe's radiation energy consists of X-rays, which travel through cosmic space with the speed of light.

  13. The Alphabet of Nature and the Alphabet of Culture in the Eighteenth Century. Botany, Diplomatics, and Ethno-Linguistics according to Carl von Linné, Johann Christoph Gatterer, and Christian Wilhelm Büttner

    PubMed Central

    2010-01-01

    In the middle of the eighteenth century, Carl von Linné, Johann Christoph Gatterer, and Christian Wilhelm Büttner attempted to realize the old idea of deciphering the alphabet of the world, which Francis Bacon had raised as a general postulate of science. This article describes these attempts and their interrelations. Linné used the model of the alphabet to classify plants according to the characters of this fruiting body. Gatterer, one of the leading German historians during the Enlightenment, adopted the botanical method of classification by genus and species to classify the history of scripts. He used the forms of the alphabetic characters to measure the age of manuscripts and to map the process of history as a genealogy of culture. Gatterer collaborated closely with Büttner, the first Göttingen professor of natural history. Büttner constructed a general alphabet of languages which connected the phonetics of language with the historically known alphabets. Early on, diplomatics and ethnography combined the natural order of natural history and the cultural order of the alphabet with the attempt to register development and to document development by the evolution of forms. Based on the shared model of the alphabet and on the common necessity to classify their empirical material, natural history and the description of culture were related attempts in the middle of the eighteenth century to comprehend the alphabetically organized nature and a naturally ordered culture. PMID:20665241

  14. Human heredity and politics: A comparative institutional study of the Eugenics Record Office at Cold Spring Harbor (United States), the Kaiser Wilhelm Institute for Anthropology, Human Heredity, and Eugenics (Germany), and the Maxim Gorky Medical Genetics Institute (USSR).

    PubMed

    Adams, Mark B; Allen, Garland E; Weiss, Sheila Faith

    2005-01-01

    Despite the fact that much has been written in recent years about the science of heredity under the Third Reich, there is as yet no satisfying analysis of two central questions: What, if anything, was peculiarly "Nazi" about human genetics under National Socialism? How, under whatever set of causes, did at least some of Germany's most well-known and leading biomedical practioners become engaged in entgrenzte Wissenschaft (science without moral boundaries)? This paper attempts to provide some answers to these two questions comparing three institutes that studied eugenics and human heredity in the 1920s and 1930s: the Eugenics Record Office at Cold Spring Harbor, New York, directed by Charles B. Davenport; the Kaiser Wilhelm Institute for Anthropology, Human Heredity and Eugenics, in Berlin, directed by Eugen Fischer; and the Maxim Gorky Medical Genetics Institute in Moscow, directed by Solomon G. Levit. The institutes are compared on the basis of the kind and quality of their research in eugenics and medical genetics, organizational structure, leadership, patronage (private or state), and the economic-social-political context in which they functioned. PMID:20503765

  15. JavaServer Pages Konrad Kurdej

    E-print Network

    Wojna, Arkadiusz

    i modyfikacj projektu #12;MVC - koszmar poprzedniego roku powraca :) Poraz pierwszy opisal wzorzec odmian z poczatków lat 90.. W listopadzie 2002 W3C uznalo struktur MVC za cz ich architektury XForms dla si MVC na czci odpowiedzialne za: model danych interfejs uytkownika logik sterowania #12;#12;Model 2

  16. Konrad-Zuse-Zentrum fr Informationstechnik Berlin

    E-print Network

    Andrzejak, Artur

    cover specific modifications of "virtual anatomy" as well as numeric simulations of associated phenomena segmentation, computational geometry, virtual anatomy, finite element meshes #12;1. "Virtual anatomy" ­ 3D of individual anatomy from medical image data: Segmentation and geometry processing #12;Prepared for submission

  17. October 30, 2010 Tutor: Professor Konrad Wegener

    E-print Network

    Daraio, Chiara

    Logistic-, Operations- and Supply Chain Management I 351-0754-00L Factory Planning 351-0770-00L ERP and SCM / Wegener 151-0833-00L Principles of Nonlinear Finite-Element- Methods 151-0718-00L Metrology for Production

  18. Wissenschaftstheoretische Anmerkungen zu Konrad Lorenz' „Vergleichende Verhaltensforschung“

    Microsoft Academic Search

    Christiane Weinberger

    1980-01-01

    Zusammenfassung Vier von Lorenz aufgeworfene Problemkreise sollen im folgenden diskutiert werden:1.Die Lorenzsche Auffassung bezüglich der Eigenständigkeit der biologischen Explikation.2.Biologische Explikation und Finalität.3.‚Ganzheit‘ und ‚Gestalt‘ in der biologischen Forschung.4.Stammesgeschichtliche Verhaltensbetrachtung.

  19. Konrad Lorenz and contemporary philosophy of mind

    Microsoft Academic Search

    MARCO SALUCCI

    1. Forerunning pages In this paper I wish to call the reader's attention upon some pages Lorenz wrote in the Forties of the last century, well before contemporary philosophy of mind was born. Nevertheless, I think that these pages are extremely interesting for the contemporary philosopher of mind. With few exceptions, contemporary philosophers of mind neither quote Lorenz's ideas nor

  20. [Conventional roentgen functional diagnosis--videodensitometry. 1. Densitometric and topometric measurements of roentgen video images: technique and method of measuring].

    PubMed

    Keller, A; Wilke, J; Blumenstein, R; Raue, I

    1992-10-01

    It is possible to measure movements in the human body with the help of X-ray television systems. A great number of different techniques has been published in the scientific literature. They all based on only two principles with qualitative differences in signal acquisition. The densitometric and topometric measurements are assessed and compared. Neither the densitometric nor the topometric principle seems to be superior. To support the experimental work the videoanalyser VIANA MP was developed on the Ilmenau Institute of Technology. PMID:1441661

  1. The birth of the first CT scanner

    Microsoft Academic Search

    Guang-Zhong Yang; D. N. Firmin

    2000-01-01

    From the day that Wilhelm Roentgen showed the world the the X-ray picture of his wife Bertha's left hand in 1895, the myth and power of X-rays startled a generation of scientists, engineers, and physicians. More than 70 years later, while medical imagers were still pursuing sharper and clearer X-ray pictures, an epoch-making new concept was brewing-computerized digital tomography. This

  2. Westflische Wilhelms-Universitt Institut fr Politikwissenschaft

    E-print Network

    Twente, Universiteit

    seit 1990 2 6 Law C Public Law I 2 6 C Public Law II 2 6 C Administrative Law I 2 6 C Administrative of Arts in Public Administration Year 1 & 2 Political Science Hours LP** EC C Basic Course I Law II 2 6 Sociology / Political Sociology E Der dritte Sektor zwischen Markt und Staat 2 6 E

  3. Wilhelm His (1831-1904): Biography

    NSDL National Science Digital Library

    Kimberly A Buettner (Arizona State University Embryo Project Encyclopedia)

    2012-07-08

    An online encyclopedia article about a Swiss embryologist who proposed the first causal-mechanical (rather than preformationist) explanation of embryogenesis, and constructed the first microtome for studying sectioned embryos.

  4. Wilhelm Roux (1850-1924): Biography

    NSDL National Science Digital Library

    Megan Kearl (Arizona State University)

    2012-07-08

    An online encyclopedia article about an early German embryologist who used experimental investigation to advance the field of developmental biology/experimental embryology. He founded the first journal in this field, dedicated to understanding causal relationships in development.

  5. Stochastic Switching Circuit Synthesis Daniel Wilhelm

    E-print Network

    Bruck, Jehoshua (Shuki)

    introduce a new duality property for series-parallel stochastic switching circuits. Finally, we construct on the so-called two-terminal series-parallel circuits. A two-terminal circuit is an undirected graph. A two-terminal circuit C is series-parallel (sp) iff C is: (1) a single switch, or (2) a series

  6. INSTINTO, ETOLOGIA E A TEORIA DE KONRAD LORENZ Instinct, Etology and the Konrad Lorenz theory

    Microsoft Academic Search

    Átima Clemente Alves Zuanon

    The purpose of this paper is to discuss the evolution of science that studies compa- rative animal behaviour - Etology -, highlighting the theory of Lorenz (1937), considered one of the founders of this science. The text begins by making reference to the diverse relati- onships existing between man and other animals from the beginning of human being existen- ce.

  7. The x-ray centennial--Thompsons and Thomsons.

    PubMed

    Almond, P R

    1993-01-01

    When x rays were discovered by Wilhelm Roentgen in November, 1895, the news spread rapidly through Europe, Great Britain, and the United States and many individuals became involved in their development. Some of the more prominent participants shared the name of Thompson or Thomson, which causes confusion when the history of x rays is discussed because of their similar pronunciation. In Britain they were William Thompson (Lord Kelvin), J. J. Thomson, and Silvanus P. Thompson and in the United States it was Elihu Thomson. In addition, one of the first books on x rays published in the United States was written by Edward Thompson. PMID:8497211

  8. Wilhelm Schickard Institute of Computer Science Theoretical Computer Science

    E-print Network

    Borchert, Bernd

    .2.4 chipTAN 10 2.2.5 NFC-TAN 12 3 nfc smartphones and nfc chip cards 15 4 standards, norms 46 6.2.3 Helping Hands 51 6.3 Extension: Mobile Banking 52 7 is it safe? 53 7.1 Attacks on NFC-TAN 54TAN comfort TAN generator 10 Figure 8 chipTAN Protocol 11 Figure 9 Flickercode 11 Figure 10 Parts of NFC

  9. Rheinische Friedrich-Wilhelms-Universitt Bonn Wirtschaftswissenschaftlicher Fachbereich

    E-print Network

    Franz, Sven Oliver

    Stephan Hahne Geschäftsführer Apeiron Restaurant & Retail Management: Kent Stephan Hahne Kent Hahne wird, Le Pain Quotidien sind nur einige Unternehmen, an deren Erfolg der Deutsch- Amerikaner maßgeblich Einflüssen. Apeiron Restaurant & Retail Management GmbH Die Apeiron Restaurant Retail & Management AG ist ein

  10. Rheinische Friedrich-Wilhelms-Universitat Bonn Institut fur Informatik VI

    E-print Network

    Behnke, Sven

    einfachen Teilmen- ge dieses Problems z¨ahlen mehrschichtige neuronale Konvolutionsnetze, wie LeNet-5, zu, das Trainieren dieses Netzes ge- gen¨uber der Laufzeit eines seriellen Programms um den Faktor 95 bis

  11. In 1895, German physicist Wilhelm Rntgen discovers a

    E-print Network

    an increase in sensitivity comparable to going from looking at the night sky with the naked-eye to the seeing its 15th year of operation. Because of its high orbit and the continued success of its components

  12. Eberhard Karls Universitat Tubingen Wilhelm-Schickard-Institut fur Informatik

    E-print Network

    Borchert, Bernd

    ¨ur Theoretische Informatik / Formale Sprachen Diplomarbeit Sichere Transaktionen beim Online-Banking Jan Vitense Arbeiten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2 Online-Banking¨at eines Online-Banking-Systems . . . . . . . . . . . . 13 2.2.3 Hardware

  13. Basic Timing Requirements for TESLA Wilhelm Kriens, DESY, Hamburg, Germany

    E-print Network

    Introduction Timing aspects according to this paper are related to constraints imposed by the bunch spacing in the main linac and in the damping ring. These constraints depend on the maximum number of bunches Beam Transfer from the Damping Ring to the Main Linac The intra bunch distance in the main linac (ML

  14. WiFire: A Firewall for Wireless Networks Matthias Wilhelm

    E-print Network

    Lenders, Vincent

    in the wireless domain. Yet, the need to selectively control and block radio communication is par- ticularly high their transmission, checking their content against a set of rules. It then relies on reactive jamming techniques is implemented on the USRP2 software-defined radio platform, in several scenarios with IEEE 802.15.4 radios. Wi

  15. TEXT KLAUS WILHELM ones are associated with hard-

    E-print Network

    fractures arising from serious in- jury, bone cancer and chronic condi- tions like osteoporosis. TISSUE ENGINEERING HAS YET TO MEET EXPECTATIONS Apropos osteoporosis (see box on page 53): Peter Fratzl reports with osteoporosis stand to gain just as much from artificial bone as those with serious injuries and bone cancer

  16. Rheinische Friedrich-Wilhelms-Universitat Bonn Institut fur Informatik IV

    E-print Network

    Eckmiller, Rolf

    und Wiedergabe von Tastatur-Eingabesequenzen mittels Arduino Mikrocontroller Andreas J. Fritz zeigen, wie die Aufnahme und Wiedergabe von Tastatur-Eingabesequenzen mittels eines Arduino . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Arduino Mikrocontroller . . . . . . . . . . . . . . . . . . . . . . 8 2.4 Verwandte Arbeiten

  17. [Tissue burden with exogenous trace elements caused by roentgen contrast media in bone cements].

    PubMed

    Löer, F; Zilkens, J; Michel, R; Freisem-Broda, G; Bigalke, K H

    1983-01-01

    In 44 patients undergoing a change of total hip prosthesis, made of Co-Cr alloy and at one point with a Refobacin-Palacos chain we analyzed samples of the hip joint capsule and fascia lata. Using Instrumental Neutron Activation Analysis (INAA) up to 18 elements were analyzed. The findings demonstrate that the tissues in the surroundings as well as in direct contact with the total hip prosthesis are burdened by corrosion products of the alloy and by decomposition of the bone cement. The decomposition of bone cement can be shown in the extraordinary high concentration of Barium, Zirconium and Hafnium which are added to Bone Cements as X-ray contrast. Microscopic findings at the same time complete and confirm the trace element analyses. PMID:6613266

  18. [Conventional roentgen functional diagnosis--videodensitometry. 2. Clinical imaging site for noninvasive diagnosis of organ motion].

    PubMed

    Baehring, T; Keller, A; Heine, A; Raue, I

    1992-10-01

    By means of the described system it is possible to measure and as well analog as digital process the organ movement, needing a X-ray television system for flouroscopy and a videotape for continuously recording. Using the densitometric principle measurements of time and a quantitative form analysis of the curves are performed. After border recognition and using the topometric principle, the local organ motion can be evaluated. The levels of signal and noise in the measured curves are computed by a fourier transformation. In the field of functional cardiology the video signal is recorded and processed synchronously with the electrocardiogram. PMID:1441662

  19. [Tracheobronchomegaly (Mounier-Kuhn syndrome): roentgen findings and tracheal stent instrumentation].

    PubMed

    Pilavaki, M; Anastasiadou, K; Vlachojanni, E; Drosos, H; Petridis, A; Drevelengas, A

    1995-10-01

    Tracheobronchomegaly is a rare disorder of the lower respiratory tract characterised by marked dilatation of the trachea and the central bronchi associated with recurrent respiratory tract infections. However, some patients with tracheobronchomegaly are not detected because the symptoms are overlooked if chest radiographs alone are used for diagnosis. We encountered two cases of tracheobronchomegaly that were not diagnosed by chest radiographic examinations but were shown clearly with CT. We believe that patients with recurrent pulmonary infection must be examined with the use of CT. PMID:8584526

  20. From Bertha Roentgen's hand to current medical imaging: one century of radiological progress

    Microsoft Academic Search

    M. Tubiana

    1997-01-01

    .   From 1896 to 1996 radiology progressed at an amazing and unforeseen pace. The analysis of a few examples shows that these\\u000a developments were due to a few groups and were enhanced by a close interaction between radiologists, physicists, engineers\\u000a and manufacturers. Radiologists emphasize needs and are often able to suggest avenues for research; engineers exploit the\\u000a basic discoveries of

  1. [RADIOLIS. A radiologic instruction and training system for systematic evaluation of roentgen images exemplified by focal bone lesions].

    PubMed

    Pelikan, E; Prümer, D; Rings, C; Wein, B; Leutner, D; Bohndorf, K; Tolxdorff, T

    1995-09-01

    RADIOLIS is an instructional software system for radiological training that guides the user through a systematic analysis of an image. The backbone of the analysis is a detailed and structured questionnaire which, as applied to our example, includes all relevant differential-diagnostic criteria for focal bone lesions. The variation range of the radiomorphologic characteristics in the questionnaire is introduced to the user with digitized X-ray images, making the simulation of an image analysis possible. In preparation, diverse teaching/learning methods reinforced by instructional psychology were incorporated during the system's development. At the core of the training system are an expandable image database and a database containing descriptions of image material formulated by radiology experts. The field of focal bone lesions, for instance, has already been integrated into RADIOLIS. A graphic user interface and an interactive dialogue enable both comfortable and simple use of the system and the user-specific structuring of the learning process. PMID:8588043

  2. Development of Mirror Modules for the ART-XC Instrument aboard the Spectrum-Roentgen-Gamma Mission

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; O'Dell, S. L.; Elsner, R.; Kilaru, K.; McCracken, J.; Atkins, C.; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.

    2013-01-01

    MSFC is developing eight x-ray mirror modules for the ART-XC instrument on board the SRG Mission. The Engineering Unit tests are successful. MSFC is on schedule to deliver flight units in the November of 2013 and January 2014.

  3. [Early description of a pulmonary aspergillosis 1847 from Greifswald].

    PubMed

    Knoke, M; Bernhardt, Hannelore; Schwesinger, G

    2003-01-01

    In 1847 the student of medicine Theodor Sluyter (1817-1895) from Greifswald published his thesis in Berlin including the first well-documented case of human pulmonary aspergillosis. In 1856 Rudolf Virchow (1821-1902) classified the depicted fungi as an Aspergillus species. Possibly Carl Ferdinand Eichstedt (1816-1892) carried out the autopsy. He is known by the first description of a fungus as the cause of pityriasis versicolor in 1846. Further involved scientists from Greifswald were Wilhelm Baum (1799-1883), Theodor Litzmann (1815-1890) and the botanist Johann Konrad Schauer (1813-1848). Their curricula vitae are given in further details as well the curriculum of T. Sluyter. PMID:12955852

  4. Konrad-Zuse-Zentrum fr Informationstechnik Berlin Heilbronner Str. 10, D-10711 Berlin -Wilmersdorf

    E-print Network

    Andrzejak, Artur

    - Wilmersdorf Frank Schmidt Peter Deuflhard iscrete Transparent Boundary Conditions for the umerical Solution of Fresnel' Equation Preprint SC 93-24 (November 1993) #12;iscrete Transparent Boundary Conditions a construction scheme of deriving rans parent , i. e. eflection-free, boundary conditions for the nu- merical

  5. Vision, Modeling, and Visualization (2011) Peter Eisert, Konrad Polthier, and Joachim Hornegger (Eds.)

    E-print Network

    2011-01-01

    (Eds.) Bent Normals and Cones in Screen-space O. Klehm1,2 T. Ritschel2,3 E. Eisemann3 H.-P. Seidel1 1 The Eurographics Association 2011. #12;O. Klehm, T. Ritschel, E. Eisemann, H.-P. Seidel / Bent Normals and Cones

  6. Vision, Modeling, and Visualization (2011) Peter Eisert, Konrad Polthier, and Joachim Hornegger (Eds.)

    E-print Network

    Heidrich, Wolfgang

    2011-01-01

    (BPA), which analyzes the patterns formed by blood parti- cles eject from a wound. The impacts of blood of BPA, and discuss how to obtain all the required parameters for our probabilistic inverse dynamics from and test scenes. c The Eurographics Association 2011. #12;B. Cecchetto & W. Heidrich / Probabilistic

  7. Eurographics Symposium on Geometry Processing (2006) Konrad Polthier, Alla Sheffer (Editors)

    E-print Network

    Pratt, Vaughan

    2006-01-01

    ) Folding meshes: Hierarchical mesh segmentation based on planar symmetry Patricio Simari, Evangelos of the data. Also introduced is an application of the method: the folding tree data structure. The structure that are defined as a struc- tured assembly of symmetric parts. In this paper we present the concept of a folding

  8. Vision, Modeling, and Visualization (2011) Peter Eisert, Konrad Polthier, and Joachim Hornegger (Eds.)

    E-print Network

    Magnor, Marcus

    2011-01-01

    characteris- tics when coated e.g. with oil, becoming more transparent in the process. Another effect Models are based on an intuitive mod- eling of the reflection process such as the famous Phong model [Pho

  9. The Tacking Knowledge Strategy Claudio Ciborra, Konrad Lorenz and the Ecology of Information Systems

    Microsoft Academic Search

    F. Ricciardi

    This work focuses on an issue that Lorenz identifies as fundamental among human cognitive strategies: what we could call the tacking knowledge strategy.\\u000a \\u000a Knowledge doesn’t go on straight: like a sailing boat coursing against the wind, it must turn and turn again, frequently changing\\u000a its approaches. This strategy implies that rationality is not, according to Lorenz, the apex and the

  10. The causes of domestication: an attempt to integrate some ideas of konrad lorenz with evolution theory

    Microsoft Academic Search

    H. Spurway

    1955-01-01

    Summary  Allopatric cultivation, usually alters the habitat, and captivity, by definition, removes the developmental systems from the\\u000a range of environmental stimuli for which they have been stabilized.

  11. Detection and Summarization of Salient Events in Coastal Environments Daniel Cullen, Janusz Konrad

    E-print Network

    Little, Thomas

    the dominant sensing modality. However, it is recognized that video analysis of maritime scenes is very to know how many people and cars have been on the beach, and if they have disturbed the fragile sand dunes to the detection and summa- rization of events in coastal videos. First, video analysis of maritime scenes poses

  12. Singularities on Flag Spaces Milo~s Bo~zek (Bratislava) and Konrad Drechsler (Halle)

    E-print Network

    * Singularities on Flag Spaces Abstract We generalized in 1980 the classical concept of flag spaces by re- placing the determining linear order by a partial one. Such new flag spaces are also algebraic varieties in a natural

  13. Optimal Reduction of Large Image Databases for Location Recognition Michal Havlena Wilfried Hartmann Konrad Schindler

    E-print Network

    Schindler, Konrad

    for a minimum connected dominating set (CDS) of the graph of pairwise connections between the database images. Even the simple minimum dominating set (DS) problem is known to be NP-hard, and the constraint that the dominating set should be connected makes it even harder. We show how the minimum DS can nevertheless

  14. Hanging the Kaiser: Anglo?Dutch relations and the fate of Wilhelm II, 1918–20

    Microsoft Academic Search

    Nigel J. Ashton; Duco Hellema

    2000-01-01

    The flight of the German Kaiser to the Netherlands at the end of the First World War led to a crisis in Anglo?Dutch relations. Prime Minister David Lloyd George made the trial of the Kaiser a key issue in the British general election campaign of December 1918. Article 227 of the Treaty of Versailles called for the Kaiser's surrender by

  15. Update in podocyte biology Karlhans Endlich, Wilhelm Kriz and Ralph Witzgall

    E-print Network

    Witzgall, Ralph - Naturwissenschaftliche Fakultät III

    ILK integrin-linked kinase LIM Lin-11, Isl-1, Mec-3 MCN minimal change nephrosis PAN puromycin syndrome, for which the genetic defect was elucidated some time ago, the mutated genes responsible of the proteins encoded by those genes attests to the complicated structure through which the podocyte contributes

  16. Ochratoxin A production by Aspergillus ochraceus Wilhelm grown under controlled atmospheres.

    PubMed Central

    Paster, N; Lisker, N; Chet, I

    1983-01-01

    When Aspergillus ochraceus NRRL 3174 was grown under controlled atmospheres with 1 and 5% O2 and without CO2, the amount of ochratoxin produced was the same as that produced by the control colonies. Increasing the O2 level up to 40% reduced ochratoxin production by 75%, whereas at 60% O2, ochratoxin production was enhanced. In atmospheres enriched with 10 or 20% CO2, ochratoxin production was reduced when O2 concentrations were below 20% and enhanced when the O2 concentration was 40 or 60% O2. Ochratoxin production was completely inhibited at 30% CO2 and above, regardless of the O2 level. Colony growth was partially inhibited at 60% CO2, and no growth occurred at 80% CO2 or above. However, when colonies inhibited by 60% CO2 or above were subsequently exposed to air, radial growth, number of sclerotia formed, and the amount of ochratoxin produced were the same as in the control colonies. The results indicate that A. ochraceus is tolerant to CO2 concentrations higher than those required to control storage insects. PMID:6405688

  17. Philosophical Anthropology and Educational Change: Wilhelm Von Humbolt and the Prussian Reforms

    ERIC Educational Resources Information Center

    Thomas, Carla R.

    1973-01-01

    After the defeat by Napoleon, Prussia endeavored to rebuild its war torn country by instituting sweeping social and educational reforms. This effort marked one of the few instances in which philosophical anthropology formed the explicit basis of a successful program of social change. (Author/KM)

  18. How Wilhelm Dilthey Influenced Popular Science Writing: Kurd Laßwitz's "Homchen. Ein Tiermärchen aus der oberen Kreide"

    NASA Astrophysics Data System (ADS)

    Azzouni, Safia

    In the second half of the nineteenth century, popularization of science appeared to be a necessity of the time. Scientists and politicians discussed the pros and cons of making scientific knowledge accessible to the public. The question of how and by whom popularization should be done was a common topic in newspapers and magazines of the time. Even though museums as well as zoological and botanical gardens played an important role in disseminating knowledge, it can be said that the popularization of science basically was (and probably still is) a "language-based event".1

  19. [Wilhelm Reich--Arthur Janov--a comparison of their work].

    PubMed

    Sprengler, M

    1984-01-01

    Although he does not always mention it, A. Janov agrees with many of W. Reich's opinions on theoretical-philosophical foundations and the theory of neurosis and other illnesses; from their criticism of society both of them develop the demand for prophylaxis of neurosis as a prerequisit for their common utopia of a selfregulated society. Primal therapy and Orgon therapy are two different forms of the "New Body Therapies" group. The authors disagree with their views of the physiological nature of Pain (A. Janov) and blokked orgon, the "function of the orgasm" and "orgastic potency", concepts that were considered by Reich to be his most important. Possible reasons for the discrepancies are given. PMID:6523964

  20. Das Prsidium Gottfried Wilhelm Leibniz Universitt Hannover, Postfach 6009, 30060 Hannover

    E-print Network

    Vollmer, Heribert

    ________ Frau/ Herr ________________________________________ geboren am: ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Es wird bestätigt, das Frau/ Herr ____________________ die praktische Erfahrung über _______________ (Zeitraum) unter Anleitung von Frau/ Herrn ____________________ (Person mit der erforderlichen Fachkunde im

  1. Baby schema modulates the brain reward system in nulliparous women

    E-print Network

    Carrington, Emily

    Konrad Lorenz defined the baby schema (``Kindchen- schema'') as a set of infantile physical features, regardless of kinship. caregiving functional MRI social cognition infant accumbens Ethologist Konrad Lorenz

  2. Experimental infection magnifies inbreeding depression in house P. ILMONEN,* D. J. PENN,* K. DAMJANOVICH,* J. CLARKE,* D. LAMBORN,*

    E-print Network

    Potts, Wayne

    , University of Utah, Salt Lake City, UT, USA Konrad Lorenz Institute for Ethology, Austrian Academy's Correspondence: Petteri Ilmonen, Konrad Lorenz Institute for Ethology, Austrian Academy of Sciences, Savoyenstr

  3. Robust Multi-Person Tracking from a Mobile Andreas Ess, Bastian Leibe, Konrad Schindler, and Luc van Gool

    E-print Network

    Schindler, Konrad

    and difficult video sequences from busy inner-city locations. Our results show that the proposed integration applications in the near future of mobile robotics and smart vehicles. So far, however, the sheer complexity be a mobile robot, an electric wheelchair, or a car passing through a crowded city center. The scenario

  4. Fachbereich: Monitoring/Early Warning Systems Leiter/in: Prof. Dr. Alain Geiger / Prof. Dr. Konrad Schindler

    E-print Network

    Giger, Christine

    -Images Beschrieb: Project description In the framework of the X-Sense project (measuring and understanding rock of the resulting motion, accurate GPS positions are provided from two devices permanently installed on the rock to the GPS solutions and what is the degree of accuracy one can expect from these displacement estimates

  5. ZENTRALE VERGABEVERANSTALTUNG: PROSEMINARE UND PROGRAMMIERPRAKTIKA IM SOMMERSEMESTER 02 RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITT BONN INSTITUT FR INFORMATIK I

    E-print Network

    Behnke, Sven

    15:40 P7 Evolutionäre Algorithmen Eckmiller, Goerke, Neumann 15:45 S8 Technische Neuronale Netze u. d. Anwend. Eckmiller, Goerke, Neumann 15:50 P8 Neuronale Netze in der Robotik Eckmiller, Goerke, Neumann 15

  6. Westflische Wilhelms-Universitt Mnster, Institute of Political Science University of Twente, School of Management and Governance

    E-print Network

    Vellekoop, Michel

    Entitlement for the Blue Card 20 5 Discussion 21 5.1 Reflection on the Results: Competition instead European Economic Area EMN European Migration Network EU European Union HQ Highly Qualified JHA Justice Broadcaster (Österreichischer Rundfunk) RWRC Red-White-Red-Card (Austria) (Rot-Weiß-Rot-Karte) TCN Third

  7. Fritz Reiche and German Refugee Scientists

    NASA Astrophysics Data System (ADS)

    Bederson, Benjamin

    2003-04-01

    Fritz Reiche (1883-1969) was a distinguished theoretical physicist, a student and colleague of Wilhelm Roentgen, Max Planck, Fritz Haber, Rudolf Ladenburg, James Franck, Max Born, Max von Laue and other early luminaries. He was coauthor of the famous Thomas-Reiche-Kuhn sum rule, and author of the seminal book The Quantum Theory, first published in 1920. He was one of the last Jewish physicists to leave Germany during the Nazi period, in 1941. In his book "Heisenberg's War" Thomas Powers relates that Reiche bore news of German work on nuclear fission, in a message from Friedrich Houtermans to Wigner and others in Princeton, where Reiche lived in Einstein's home during the summer of 1941. Reiche's son Hans later claimed that this incident played a significant role in convincing Einstein to write that letter to President Roosevelt. In this talk I will relate the difficulties Reiche experienced, first in leaving Germany and then in reestablishing his physics career in the US. He finally obtained an adjunct position at NYU where he served until his retirement. The role played by the renowned Emergency Committee in Aid of Displaced Foreign Scholars will be discussed. The particular role played by Ladenburg, who was instrumental in obtaining a small grant for Reiche permitting him to obtain a US visa, in helping many physicists leave Nazi Germany and occupied countries, will also be described.

  8. Anniversary Paper: Image processing and manipulation through the pages of Medical Physics

    SciTech Connect

    Armato, Samuel G. III; Ginneken, Bram van [Department of Radiology, University of Chicago, 5841 South Maryland Avenue, Chicago, Illinois 60637 (United States); Image Sciences Institute, University Medical Center Utrecht, Heidelberglaan 100, Room Q0S.459, 3584 CX Utrecht (Netherlands)

    2008-10-15

    The language of radiology has gradually evolved from ''the film'' (the foundation of radiology since Wilhelm Roentgen's 1895 discovery of x-rays) to ''the image,'' an electronic manifestation of a radiologic examination that exists within the bits and bytes of a computer. Rather than simply storing and displaying radiologic images in a static manner, the computational power of the computer may be used to enhance a radiologist's ability to visually extract information from the image through image processing and image manipulation algorithms. Image processing tools provide a broad spectrum of opportunities for image enhancement. Gray-level manipulations such as histogram equalization, spatial alterations such as geometric distortion correction, preprocessing operations such as edge enhancement, and enhanced radiography techniques such as temporal subtraction provide powerful methods to improve the diagnostic quality of an image or to enhance structures of interest within an image. Furthermore, these image processing algorithms provide the building blocks of more advanced computer vision methods. The prominent role of medical physicists and the AAPM in the advancement of medical image processing methods, and in the establishment of the ''image'' as the fundamental entity in radiology and radiation oncology, has been captured in 35 volumes of Medical Physics.

  9. The state of the art of medical imaging technology: from creation to archive and back.

    PubMed

    Gao, Xiaohong W; Qian, Yu; Hui, Rui

    2011-01-01

    Medical imaging has learnt itself well into modern medicine and revolutionized medical industry in the last 30 years. Stemming from the discovery of X-ray by Nobel laureate Wilhelm Roentgen, radiology was born, leading to the creation of large quantities of digital images as opposed to film-based medium. While this rich supply of images provides immeasurable information that would otherwise not be possible to obtain, medical images pose great challenges in archiving them safe from corrupted, lost and misuse, retrievable from databases of huge sizes with varying forms of metadata, and reusable when new tools for data mining and new media for data storing become available. This paper provides a summative account on the creation of medical imaging tomography, the development of image archiving systems and the innovation from the existing acquired image data pools. The focus of this paper is on content-based image retrieval (CBIR), in particular, for 3D images, which is exemplified by our developed online e-learning system, MIRAGE, home to a repository of medical images with variety of domains and different dimensions. In terms of novelties, the facilities of CBIR for 3D images coupled with image annotation in a fully automatic fashion have been developed and implemented in the system, resonating with future versatile, flexible and sustainable medical image databases that can reap new innovations. PMID:21915232

  10. 77 FR 51606 - Culturally Significant Objects Imported for Exhibition Determinations: “Extravagant Inventions...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-24

    ...Furniture of the Roentgens,'' Formerly Titled ``Seductive Luxury and Innovation: The Furniture of Abraham and David Roentgen...Department of State pertaining to the exhibition ``Seductive Luxury and Innovation: The Furniture of Abraham and David...

  11. Inverted diverticula of the gastrointestinal tract

    Microsoft Academic Search

    Patrick C. Freeny; John H. Walker

    1979-01-01

    Inverted diverticula of the gastrointestinal tract are rare. This paper briefly presents the roentgen findings of an inverted Meckel's diverticulum and is the first reported case of the roentgen appearance of an inverted colonic diverticulum.

  12. Biological Theory ISSN 1555-5542

    E-print Network

    Shrader-Frechette, Kristin

    exclusively by Konrad Lorenz Institute for Evolution and Cognitive Research. This e-offprint is for personal No Clothes Kristin Shrader-Frechette Received: 2 December 2011 / Accepted: 20 January 2012 Ó Konrad Lorenz

  13. Social context may affect urinary excretion of 11-ketotestosterone in African cichlids

    E-print Network

    Konrad Lorenz Research Station Gruenau, University of Vienna, Austria; 2 Centro de Ciências do Mar Psicologia Aplicada, Lisbon, Portugal; 4 Konrad Lorenz Institute for Ethology (KLIVV), Vienna and Department

  14. Genetic resistance to infection influences a male's sexual attractiveness and modulation of testosterone

    E-print Network

    Potts, Wayne

    , Dustin J. Penn a,b a Konrad Lorenz Institute for Ethology, Austrian Academy of Sciences, Savoyenstr. 1a.09.003 * Corresponding author. Address: Konrad Lorenz Institute for Ethol- ogy, Austrian Academy of Sciences, Savoyenstr

  15. Universit Pierre et Marie Curie THESE DE DOCTORAT DE L'UNIVERSITE PARIS VI

    E-print Network

    (Konrad Lorenz Institute, Austrian Academy of Science, Vienna) Soutenue le 11 décembre 2007 à l DANCHIN (E.D.B., Université Paul Sabatier, Toulouse) Richard H. WAGNER (Konrad Lorenz Institute, Austrian

  16. Biological Theory ISSN 1555-5542

    E-print Network

    Newman, Stuart A.

    exclusively by Konrad Lorenz Institute for Evolution and Cognition Research. This e-offprint is for personal / Published online: 23 May 2013 Ó Konrad Lorenz Institute for Evolution and Cognition Research 2013 Abstract

  17. Pere Alberch: Originator of EvoDevo John O. Reiss

    E-print Network

    Müller, Gerd B.

    ) to celebrate his contribu- tions to the origins of EvoDevo. Hosted by the Konrad Lorenz Institute for Evolution February 20, 2009; accepted February 22, 2009 Biological Theory 3(4) 2008, 351­356. c 2009 Konrad Lorenz

  18. A Dual-View Visualization of In-Car Communication Processes Michael Sedlmair, Wolfgang Hintermaier, Konrad Stocker, Thorsten Bring, Andreas Butz

    E-print Network

    , including controller area network (CAN), FlexRay or media oriented systems transport (MOST), as well contain up to 70 electronic control units (ECUs), which are linked via several bus systems and protocols automotive system development, integration and maintenance processes, fault diagnosis and root cause analysis

  19. A review of "Unity and Discontinuity: Architectural Relations between the Southern and Northern Low Countries" edited by Krista De Jonge and Konrad Ottenheym 

    E-print Network

    Palmer, Allison Lee

    2008-01-01

    began to extend into Lent (Giuseppe Verdi?s Ernani was first presented on 9 March 1844 at La Fenice, and his Simon Boccanegra was first presented there on 12 March 1857); Ascension-time lengthened too. The author concludes: ?In contrast...

  20. 101:655-664, 2009. First published Nov 19, 2008; doi:10.1152/jn.90545.2008J Neurophysiol Kunlin Wei and Konrad Krding

    E-print Network

    Körding, Konrad Paul

    101:655-664, 2009. First published Nov 19, 2008; doi:10.1152/jn.90545.2008J Neurophysiol Kunlin Wei access free at:This article cites http://jn.physiology.org/cgi/content/full/101/2/655#BIBL including high-resolution figures, can be found at:Updated information and services http://jn.physiology.org/cgi/content/full/101/2/655

  1. Disparity Statistics for Pedestrian Detection: Combining Appearance, Motion and Stereo Stefan Walk1, Konrad Schindler1,2 and Bernt Schiele1,3

    E-print Network

    -Brussels and ETH-Loewenplatz Contributions · HOG [1] Successful feature on static images Robust to changes histograms · HOS [4] Originally: HOG on Depth Here: HOF on disparity (performs equally well) · Datasets: TUD.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 false positives per image missrate HOG+HOF HOG+HOF+HOS HOG

  2. New Features and Insights for Pedestrian Detection Stefan Walk1, Nikodem Majer1, Konrad Schindler1, Bernt Schiele1,2

    E-print Network

    Components · HOG [1] Local histograms of gradient orientation Normalization and interpolation provide missrate HOG HOG+CSS-HSV HOG+HSV References [1] Navneet Dalal and Bill Triggs. Histograms of oriented

  3. Lorenz, Konrad (Zacharias) (b. November 7, 1903; d. February 27, 1989), Austrian psychologist. Lorenz's research laid the foundations for a new scientific discipline called

    E-print Network

    Maestripieri, Dario

    occur to ensure normal development. The same events occurring before or after the critical period development. This research was instrumental in the formulation of attachment theory, according to which human. Such studies have documented both similarities and differences in parental practices and child development

  4. Explaining Dog Wolf Differences in Utilizing Human Pointing Gestures: Selection for Synergistic Shifts in the

    E-print Network

    Indiana University

    , Eo¨tvo¨s University, Budapest, Pa´zma´ny, Hungary, 2 Konrad Lorenz Institute for Evolution), the EU: FP6 NEST, the FWF (P21244), Royal Canin and the Konrad-Lorenz Research Station in Gru://www.royal-canin.at/) Konrad-Lorenz Institute in Gru¨nau. (http://www.klf.ac.at/index.htm) Competing Interests: The authors

  5. Behavioural Genomics: An Organismic Perspective

    E-print Network

    Hofmann, Hans A.

    about a food source, discovering the hon- eybee `dance language'. Konrad Lorenz (1952) conducted many the question: Why do animals behave the way they do? See also: Lorenz, Konrad Zacharias; Tinbergen, Nikolaas recognised in 1973 when the Nobel Prize in Physiology or Medicine was awarded to Karl von Frisch, Konrad

  6. Sports in the German University from about 1900 until the Early Years of the Federal Republic of Germany: The Example of Muenster and the ‘Westfaelische Wilhelms-University’

    Microsoft Academic Search

    Michael Krüger

    2012-01-01

    The development of modern sports in Germany is related not only to the rapid progress of industrialisation and urbanisation at the turn of the nineteenth into the twentieth century, but also to the social inventiveness of the emergent German bourgeoisie. Modern sports were the invention of the so-called educated class. They were popular among the sons of the German elite.

  7. ZnO -From Dilute Magnetic Doping to Spin Transport Matthias Opel, Sebastian T.B. Goennenwein, Stephan Geprgs, Matthias Althammer, Karl-Wilhelm Nielsen,

    E-print Network

    Gross, Rudolf

    ZnO - From Dilute Magnetic Doping to Spin Transport Matthias Opel, Sebastian T.B. Goennenwein 80 100 0.0 0.5 1.0 1.5 Ni/ZnO(15nm)/Co ZnO reference sample 400 µm² 20 µA Temperature T (K) ResistanceR() Resistivity(m) Resistivity semiconducting behavior of R(T) resistance dominated by ZnO layer sf

  8. [Steps towards a hospital information system: illustrated by the example of the medical setting of the Westphalian Wilhelms University of Münster].

    PubMed

    Prokosch, H U

    1999-01-01

    Implementing hospital information systems for an efficient application of electronic data processing requires the integration of previously introduced departmental systems, which traditionally have been designed only from the viewpoint of an isolated hospital department. Those efforts have to be accompanied by a parallel implementation of a hospital-wide network and the introduction of PC workstations on clinical wards and in outpatient clinics. In this paper currently ongoing efforts at the University Hospital of Münster are presented in order to illustrate how such integration efforts can improve communication and information retrieval in all clinical areas of a hospital. PMID:10209862

  9. Crying Threshold and Intensity in Major Depressive Disorder Jonathan Rottenberg, James J. Gross, Frank H. Wilhelm, Sadia Najmi, and Ian H. Gotlib

    E-print Network

    Gross, James J.

    Crying Threshold and Intensity in Major Depressive Disorder Jonathan Rottenberg, James J. Gross a tantalizing clue concerning how emotions are dysregulated in this disorder. Major depressive disorder (MDD, the centrality of emotional disturbance is readily apparent from the diagnostic features of MDD. Major depression

  10. A Brazilian in the Reich of Wilhelm II: Henrique da Rocha Lima, Brazil-Germany relations and the Instituto Oswaldo Cruz, 1901-1909.

    PubMed

    Silva, André Felipe Cândido da

    2013-03-01

    This article follows the career of the Brazilian physician Henrique da Rocha Lima, one of the first to join the group of young researchers working at the Instituto Soroterápico de Manguinhos (Instituto Oswaldo Cruz). It describes his first voyage to Germany where he specialized in microbiology and pathological anatomy, training that shaped his subsequent professional identity. The tensions and dilemmas experienced by Rocha Lima provide an insight into what it meant to dedicate oneself to a scientific career in Brazil at the start of the twentieth century. They also reveal the importance of the relations with the German-speaking world for the experimental medicine that became established under the leadership of Oswaldo Cruz. PMID:23559048

  11. German-American Cultural Interaction in the Jacksonian Era: Six Unpublished Letters by Francis Lieber and John Pickering to Wilhelm von Humboldt.

    ERIC Educational Resources Information Center

    Mueller-Vollmer, Kurt

    1998-01-01

    Letters by German-American writer and political scientist Francis Lieber and American lawyer and linguist John Pickering to Wilhem von Humboldt in Berlin, published here for the first time, give insight into the cultural interaction between Germany and the United States during the Jacksonian era, and may open new perspectives for German-American…

  12. Prediction of DCT Coefficients Considering Motion Compensation Error Distributions

    E-print Network

    Gottfried Wilhelm Leibniz Universitaet Hannover Hannover, Germany Email: schmidt@tnt.uni-hannover.de Bernd.Edler@audiolabs-erlangen.de Joern Ostermann Gottfried Wilhelm Leibniz Universitaet Hannover Hannover, Germany Email: office@tnt

  13. TREEHEALTHNET What is Treehealthnet?

    E-print Network

    by a moderator (Wilhelm de Beer). The attractive part of a List Server is that all participants receive messages and participate? - staff of the TPCP member-companies - scientific and technical staff linked to Tree Protection an e-mail to the list manager, Wilhelm de Beer, at wilhelm.debeer@fabi.up.ac.za, requesting

  14. Overview of the Chandra X-Ray Observatory Facility

    NASA Technical Reports Server (NTRS)

    Weisskopf, M. C.; Six, N. Frank (Technical Monitor)

    2002-01-01

    The Chandra X-Ray Observatory (originally called the Advanced X-Ray Astrophysics Facility - AXAF) is the X-Ray component of NASA's "Great Observatory" Program. Chandra is a NASA facility that provides scientific data to the international astronomical community in response to scientific proposals for its use. The Observatory is the product of the efforts of many organizations in the United States and Europe. The Great Observatories also include the Hubble Space Telescope for space-based observations of astronomical objects primarily in the visible portion of the electromagnetic spectrum, the now defunct Compton Gamma- Ray Observatory that was designed to observe gamma-ray emission from astronomical objects, and the soon-to-be-launched Space Infrared Telescope Facility (SIRTF). The Chandra X-Ray Observatory (hereafter CXO) is sensitive to X-rays in the energy range from below 0.1 to above 10.0 keV corresponding to wavelengths from 12 to 0.12 nanometers. The relationship among the various parts of the electromagnetic spectrum, sorted by characteristic temperature and the corresponding wavelength, is illustrated. The German physicist Wilhelm Roentgen discovered what he thought was a new form of radiation in 1895. He called it X-radiation to summarize its properties. The radiation had the ability to pass through many materials that easily absorb visible light and to free electrons from atoms. We now know that X-rays are nothing more than light (electromagnetic radiation) but at high energies. Light has been given many names: radio waves, microwaves, infrared, visible, ultraviolet, X-ray and gamma radiation are all different forms. Radio waves are composed of low energy particles of light (photons). Optical photons - the only photons perceived by the human eye - are a million times more energetic than the typical radio photon, whereas the energies of X-ray photons range from hundreds to thousands of times higher than that of optical photons. Very low temperature systems (hundreds of degrees below zero Celsius) produce low energy radio and microwave photons, whereas cool bodies like our own (about 30 degrees Celsius) produce infrared radiation. Very high temperatures (millions of degrees Celsius) are one way of producing X-rays.

  15. August 2005 IEEE Computational Intelligence Society 5 1917 Karl Steinbuch 2005

    E-print Network

    Hartenstein, Reiner

    Konrad Zuse (who developed a functioning pro- gram-controlled computing machine c.1936), Steinbuch has Medicine, the Konrad Adenauer Science Award, the Jakob Fugger Medal, and the Prime Minister's Merit Medal was director of development at the Stuttgart "Informatik-Werk" of Standard Electric Lorenz AG (SEL

  16. Philosophy of Science, 74 (January 2007) pp. 127. 0031-8248/2007/7401-0005$10.00 Copyright 2007 by the Philosophy of Science Association. All rights reserved.

    E-print Network

    Barrett, Jeffrey A.

    February 2007. To contact the author, please write to: Konrad Lorenz Institute for Evolution and Cognition and the Konrad Lorenz Institute for Evolution and Cognition Research. #12;2 SIMON M. HUTTEGGER idea underlying Research, Adolf Lorenz Gasse 2, A-3422 Altenberg, Austria; e-mail: simon.huttegger@kli.ac.at. I would like

  17. Philosophy of Science, 74 (December 2007) pp. 839847. 0031-8248/2007/7405-0024$10.00 Copyright 2007 by the Philosophy of Science Association. All rights reserved.

    E-print Network

    Barrett, Jeffrey A.

    To contact the author, please write to: Konrad Lorenz Institute for Evolution and Cognition Research, Adolf was supported by the Konrad Lorenz Institute for Evolution and Cog- nition Research. #12;840 SIMON M. HUTTEGGER Lorenz Gasse 2, A-3422 Altenberg, Austria; e-mail: simon .huttegger@kli.ac.at. This research

  18. Corresponding author: MargaVicedo, Institute for the History and Philosophy of Science and Technology, 91 Charles St West,

    E-print Network

    Vicedo, Marga

    of John Bowlby and Mary Ainsworth as well as from Konrad Lorenz's views about imprinting and instincts of psychiatrist John Bowlby's and ethologist Konrad Lorenz's views about the instinctual nature of the infant that the mother was the child's psychic organizer.Nor did Harlow agree with Lorenz's view of instincts

  19. Abstract By staying close to allies, individuals may en-joy benefits through social support. In the socially mo-

    E-print Network

    . Oliveira D. Frigerio · B. Weiss · K. Kotrschal Konrad Lorenz Forschungsstelle für Ethologie and University of Vienna, 4645 Grünau 11, Austria D. Frigerio () Konrad Lorenz Forschungsstelle, 4645 Grünau 11, Austria e that flock for most of the year (Lorenz et al. 1978; Rutschke 1982). Migrating and wintering flocks include

  20. Absence of an Induced Magnetic Moment in Pt on Y3Fe5O12 Stephan Geprgs1, Matthias Opel1, Sibylle Meyer1, Fabrice Wilhelm2, Katharina Ollefs2, Andrei Rogalev2,

    E-print Network

    Gross, Rudolf

    Pt/Fe3O4 Pt/NiFe2O4 FMI: Y3Fe5O12 (yttrium iron garnet, YIG) NM: Pt (large spin-Hall angle) Y3Fe5O12 Magnetoresistance (MR) in non-magnetic Pt magnetic proximity magneto- resistance (MPMR) idea: induced magneticXiv:1401.7787 Experiments (compatible): spin-Hall magnetoresistance (SMR) theory/model: absorption of spin

  1. Eines der strksten Argumente fr die Quantennatur des Lichts lieferte Mitte der 1920er-Jahre Walther Bothe, von 1933 an Direktor des Instituts fr Physik am Heidelberger Kaiser-Wilhelm-/

    E-print Network

    Amerikaners Arthur Holly Compton, der Kristalle mit harten Röntgenstrahlen be- schossen hatte. Dabei fand er von Albert Einstein und Arthur Holly Compton sollte die Zahl der Lichtquanten exakt der Zahl der genau festgelegte Richtung einschlägt. An diesem Compton-Effekt schieden sich die Geister. Nach Ansicht

  2. William IV of Hesse-Cassel - the purpose of astronomy for a princely court in the 16th century. (German Title: Wilhelm IV von Hessen-Kassel - Der Nutzen der Astronomie für einen Fürstenhof des 16. Jahrhunderts)

    NASA Astrophysics Data System (ADS)

    Gaulke, Karsten

    For princes in the 16th century, astronomy played a major role. When God wants to give a fair warning to man about terrestrial events by means of the stars, a responsibly acting prince must pay attention to this. Thus astronomers had an influence on political events. This contribution discusses the question whether William IV of Hesse-Cassel had planned his self-formation as an «astronomer-landgrave» from the beginning. It is, however, shown that his first star catalogues can be seen in the context of the construction of astronomical clocks, and not as a pure research programme. For William, astronomical activities thus were no putting himself into service of a pure research programme, but part of his staging of princely reign.

  3. 76 FR 53705 - Culturally Significant Objects Imported for Exhibition; Determinations: “Seductive Luxury and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-29

    ...Objects Imported for Exhibition; Determinations: ``Seductive Luxury and Innovation: The Furniture of Abraham and David Roentgen...that the object to be included in the exhibition ``Seductive Luxury and Innovation: The Furniture of Abraham and David...

  4. Astronomy 282 Lecture Notes, Winter 2012 c Edward L. Wright, 2012

    E-print Network

    Wright, Edward L. "Ned"

    . 1. History Demo of Geiger counter and electroscope Radioactivity: 1896 by Becquerel X-rays: 1895 by Roentgen Ionization of air decreased with altitude, 1900-1910 1912: Victor Hess took electroscopes to 5300

  5. Radioactive Material Equations and Formulas Calculator

    NSDL National Science Digital Library

    Jimmy Raymond

    Online calculator solves solutions in relationship to nuclei, nuclear reactions, half life time, disintegration constant, becquerels, curie, Avogadro's number, equivalent radiation dose, absorbed dose, radionuclide, ionizing activity, atomic weight, quality factor, roentgen equivalent man (rem), rad, sievert and gray.

  6. Cathartic colon

    Microsoft Academic Search

    William L. Campbell

    1983-01-01

    Cathartic colon is an infrequent and severe manifestation of chronic irritant laxative abuse. Little is known of its natural\\u000a history after cathartics are stopped. Previous reported cases have shown residual roentgen abnormalities on follow-up examinations.\\u000a A case is presented of cathartic colon caused by more than 70 years of laxative abuse that demonstrated complete reversal\\u000a of the roentgen changes four

  7. Calibration of the ART-XC/SRG X-ray Mirror Modules

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; Zavlin, V.; Swartz, D.; Kolodziejczak, J.; Elsner, R.; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.

    2014-01-01

    Seven x-ray mirror modules are being fabricated at the Marshall Space Flight Center (MSFC) for the Astronomical Roentgen Telescope (ART) instrument to be launched on board of the Spektrum Roentgen Gamma (SRG) Mission. As they are completed, the modules are tested and calibrated at the MSFC's 104-m Stray Flight Facility. The results of these calibration measurements and comparisons with theoretical models will be presented.

  8. Hot Atom Chemistry of the Alkyl Bromides; Absence of Effects Due to High Radiation Density; Isotope Separation in Solids

    Microsoft Academic Search

    Frank S. Rowland; W. F. Libby

    1953-01-01

    A 30-curie polonium-beryllium neutron source which gives less than 0.1 roentgen per hour in close contact was used to study the hot atom chemistry of a selection of alkyl bromides. Comparison of the results with those obtained with ordinary neutron sources containing gamma rays in abundance up to 700 roentgen\\/hour equivalent strongly indicates that the essential phenomena reported are free

  9. Testicular damage and regeneration in rats following low-level gamma irradiation

    E-print Network

    Maxwell, Wesley Howard

    1974-01-01

    ) is generally considered to be the first thorough investigation of testicular damage caused by radiation. Rat testes were exposed to Roentgen rays for durations of 2 to 10 minutes per day for 1 to 8 days. The testes became soft and translucent. Bergonie... and showed no spermatogenesis when exposed to daily Roentgen radiation. Friben explained the lack of spermatogenesis on the complete destruction of the spermatogenic elements lining the seminiferous tubules. He believed that radiation caused a reduction...

  10. Selection of the optimal microelectrode during DBS surgery in Parkinson's patients

    E-print Network

    Ras, Zbigniew W.

    Selection of the optimal microelectrode during DBS surgery in Parkinson's patients Konrad Abstract. Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is effective treatment of Parkinson: Parkinson's Disease, DBS, STN, Wavelet, Filtering, PCA, FFT, Spike detection, Spike discrimination, Spike

  11. AIAA-91-1678 Inviscid Dynam,ics of Two-

    E-print Network

    with the measurements of Oster and \\\\'ygnanski and of Konrad, except for the peak value of the v' profile. 1 perturbations indic.at.e that vortex dynamics are basically inviscid (Ho aDd Huang 1982; Oster and \\\\'ygnanski

  12. Ototoxic Medications (Medication Effects)

    MedlinePLUS

    Ototoxic Medications (Medication Effects) By Barbara Cone, Patricia Dorn, Dawn Konrad-Martin, Jennifer Lister, Candice Ortiz, and ... in our Audiology Information Series [PDF]. What Is Ototoxicity? Certain medications can damage the ear, resulting in ...

  13. Interaction Studies 11:3 (2010), 380395. doi 10.1075/is.11.3.03hem issn 15720373 / e-issn 15720381 John Benjamins Publishing Company

    E-print Network

    2010-01-01

    ,3, Didone Frigerio1 & Kurt Kotrschal1,2 1Konrad Lorenz Forschungsstelle für Ethologie, Austria/ 2University in a fundamental way (Lorenz, 1988). Particularly strong heritable traits seem relatively inert against

  14. http://journals.cambridge.org/ORX Additional services for Oryx

    E-print Network

    Vermont, University of

    . Allegedly it was Konrad Lorenz who said `The specialist knows more and more about less and less and finally, then there will be serious implications. Here we report that future conservation scientists would like to heed Lorenz

  15. Aggression and Dominance Between Cows and Spotted Hyenas

    E-print Network

    Maestripieri, Dario

    are rampant. Konrad Lorenz, the Austrian ethologist who won the Nobel Prize in 1973 for his studies of animal biologists these days share Lorenz's views on aggression. Aggression is neither necessary nor inevitable

  16. Flexible Latching: A Biologically-Inspired Mechanism for Improving the Management of Homeostatic Goals

    E-print Network

    Bryson, Joanna J.

    Kingdom, and JJB was on sabbatical at The Konrad Lorenz Institute for Evolution and Cognition Research, Adolf Lorenz Gasse 2, A-3422 Altenberg, Austria. P. Rohlfshagen School of Computer Science, University

  17. Birds That Go Wild for the City

    E-print Network

    in Seewiesen: nestled be- tween meadows, fields and forest, on the banks of Lake Eßsee ­ the lake where Konrad Lorenz once swam with his young gray geese. The subdued atmosphere of the misty November morning further

  18. {kwon, dhkwak, tspark, bshwang, btzhang}@bi.snu.ac.kr TV Viewers Recognition using Personal Body Length and Posture

    E-print Network

    ." Proc. of NDSS. Vol. 13. 2013. [3] Lai, Kam, Janusz Konrad, and Prakash Ishwar. "Towards gesture Computing. ACM, pp. 21-26, 2013. [6] Hayashi, Eiji, Manuel Maas, and Jason I. Hong. "Wave to me: user

  19. Guidelines for an interesting, suitable, and successful Interdisciplinary Project (IDP)

    E-print Network

    Biersack, Ernst W.

    to the corresponding departments: o Business Adminstration: Prof. Krcmar, Konrad Dongus http://www.winfobase.de/ o also be examiners of IDPs: #12;o Business Adminstration: Prof. Bichler, Prof. Krcmar o Electrical

  20. doi:10.1182/blood-2012-11-463257 Prepublished online May 13, 2013;

    E-print Network

    Timmer, Jens

    . Marx, thrombocythemia cells discriminates pre-fibrotic primary myelofibrosis from essential Subcellular pre-fibrotic primary myelofibrosis from essential thrombocythemia Konrad Aumann1 , Anna-Verena Frey1-2 distinguishes essential thrombocythemia from primary myelofibrosis. ABSTRACT The WHO

  1. bersicht: Vertrauensdozenten der staatlichen Begabtenfrderungswerke an der Friedrich-Schiller-Universitt Jena (Stand: 14.09.2012)

    E-print Network

    Knüpfer, Christian

    Lorenz stephan.lorenz@uni-jena.de Für die FH Jena: Prof. Dr. Wolfgang Behlert wolfgang.behlert@fh-jena.de Prof. Dr. Thomas Sauer thomas.sauer@bw.fh-jena.de 1.3. und 1.9. Konrad-Adenauer-Stiftung http://www.kas.de/wf/de/42.8/ Konrad-Adenauer-Stiftung e.V. Rathausallee 12 53757 Sankt Augustin Prof. Dr. mult. Nikolaus

  2. bersicht: Vertrauensdozentender staatlichen Begabtenfrderungswerke an der Friedrich-Schiller-Universitt Jena (Stand: 15.09.2014)

    E-print Network

    Rossak, Wilhelm R.

    Schumannstr. 8 10117 Berlin Dr. Stephan Lorenz stephan.lorenz@uni-jena.de Für die FH Jena: Prof. Dr. Wolfgang Behlert wolfgang.behlert@fh-jena.de Prof. Dr. Thomas Sauer thomas.sauer@bw.fh-jena.de 1.3. und 1.9. Konrad-Adenauer-Stiftung http://www.kas.de/wf/de/42.8/ Konrad-Adenauer-Stiftung e.V. Rathausallee 12 53757 Sankt Augustin Prof

  3. Clique-detection Models in Computational Biochemistry and Genomics

    E-print Network

    Butenko, Sergiy

    Clique-detection Models in Computational Biochemistry and Genomics S. Butenko and W. E. Wilhelm,wilhelm}@tamu.edu Abstract Many important problems arising in computational biochemistry and genomics have been formulated and genomic aspects of the problems as well as to the graph-theoretic aspects of the solution approaches. Each

  4. Our Compulsory Goals: Effective Teaching and Meaningful Learning through Powerful Cultural Tools

    ERIC Educational Resources Information Center

    Wilhelm, Jeffrey D., Ed.

    2012-01-01

    Wilhelm asks, "But are new literacies just fun?" Then he immediately answers, "Absolutely not--if we as teachers provide the right context and conditions of their use." Offering research-based advice on incorporating technology to increase motivation and deepen learning, Wilhelm boils it down to this bottom line: it's engaged, substantive,…

  5. a Preprintreihe SFB 478 { Geometrische Strukturen in der Mathematik

    E-print Network

    ANDREW S. TOMS AND WILHELM WINTER Dedicated to George Elliott on the occasion of his 60th birthday algebras, O 2 and O1 stand out; they are cornerstones of the Kirchberg{Phillips classi#12;cation of simple Fellowship. 1 #12; 2 ANDREW S. TOMS AND WILHELM WINTER One might reasonably ask whether there is an abstract

  6. ART-XC/SRG: Status of the X-ray Optics Development

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; Elsner, R.; O'Dell, S.; Kolodziejczak, J.; McCracken, J.; Zavlin, V.; Swartz, D.; Kilaru, K.; Atkins, C.; Pavlinskiy, M.; Tkachenko, A.; Lapshov, I.

    2014-01-01

    The Astronomical Roentgen Telescope (ART) instrument is a hard-x-ray instrument with energy response up to 30 keV that is to be launched on board of the Spectrum Roentgen Gamma (SRG) Mission. The instrument consists of seven identical mirror modules coupled with seven CdTe strip focal-plane detectors. The mirror modules are being developed at the Marshall Space Flight Center (MSFC.) Each module has approx. 65 sq. cm effective area and an on-axis angular resolution of 30 arcseconds half power diameter (HPD) at 8 keV. The current status of the mirror module development and testing will be presented.

  7. ART-XC/SRG: Status of the X-ray Optics Development

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; Elsner, R.; O'Dell, S.; Kolodziejczak, J.; McCracken, J.; Zavlin, V.; Swartz, D.; Kilaru, K.; Atkins, C.; Pavlinskiy, M.; Tkachenko, A.; Lapshov, I.

    2014-01-01

    The Astronomical Roentgen Telescope (ART) instrument is a hard-x-ray instrument with energy response up to 30 keV that is to be launched on board of the Spectrum Roentgen Gamma (SRG) Mission. The instrument consists of seven identical mirror modules coupled with seven CdTe strip focal-plane detectors. The mirror modules are being developed at the Marshall Space Flight Center (MSFC.) Each module has approximately 65 sq. cm effective area and an on-axis angular resolution of 30 arcseconds half power diameter (HPD) at 8 keV. The current status of the mirror module development and testing will be presented.

  8. Development and Calibration of the ART-XC Mirror Modules for the Spectrum Rontgen Gamma Mission

    NASA Technical Reports Server (NTRS)

    Ramsey, B.; Gubarev, M.; Elsner, R.; Kolodziejczak, J.; Odell, S.; Swartz, D.; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.

    2013-01-01

    The Spectrum-Röntgen-Gamma (SRG) mission is a Russian-lead X-ray astrophysical observatory that carries two co-aligned X-ray telescope systems. The primary instrument is the German-led extended ROentgen Survey with an Imaging Telescope Array (eROSITA), a 7-module X-ray telescope system that covers the energy range from 0.2-12 keV. The complementary instrument is the Astronomical Roentgen Telescope -- X-ray Concentrator (ART-XC or ART), a 7-module Xray telescope system that provides higher energy coverage, up to 30 keV.

  9. ART-XC/SRG: Status of the X-ray Optics Development

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; Zavlin, V.; Swartz, D.; Elsner, R. F.; ODell, S.; Kilaru, K.; Atkins, C.; McCracken, J.; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.

    2014-01-01

    The Astronomical Roentgen Telescope (ART) instrument is a hard x-ray instrument with energy response up to 30 keV that is to be launched on board of the Spectrum Roentgen Gamma (SRG) Mission. The instrument consists of seven identical mirror modules coupled with seven CdTe strip focal-plane detectors. The mirror modules are being developed at the Marshall Space Flight Center (MSFC.) Each module has approximately 65 sq. cm effective area and an on-axis angular resolution of 30 arcseconds half power diameter (HPD) at 8 keV. The current status of the mirror module development and testing will be presented.

  10. A review of "Verzeichnis der gedruckten Briefe deutscher Autoren des 17. Jahrhunderts" by Thomas Bürger, ed. 

    E-print Network

    Susan R. Boettcher

    2003-01-01

    . Theophilus. Edited by Jana Matlov? and Jir? Bene? and translated by Viktor Friedrich Oehler and Frank B?hling with commentary and introduction by Jir? Bene?. Volume 16 of Gesammelte Schriften, Wilhelm Schmidt-Biggemann, general editor. Stuttgart...

  11. Power-Invariant Magnetic System Modeling 

    E-print Network

    Gonzalez Dominguez, Guadalupe Giselle

    2012-10-19

    Hans Cristian Oersted discovered that an electric current produced a magnetic field in its neighborhood. The nature of this phenomenon was fully explored by André Ampère and Wilhelm Eduard Weber. They showed that a current loop was magnetically...

  12. Curriculum Vitae Hui Cao 1 Hui Cao June 6, 2010

    E-print Network

    Cao, Hui

    Goeppert-Mayer Award from American Physical Society 2006 Friedrich Wilhelm Bessel Research Award from 2005 Lecturer 2008 Fellow of American Physical Society 2007 Fellow of Optical Society of America 2007 Maria

  13. Berhmte Mainzer 2007 Jahr der Geisteswissenschaften

    E-print Network

    Schöne, Bernd R.

    Reichshauptstadt. Johann Wolfgang von Goethe: Belagerung von Mainz Prof. Dr. Hermann Kurzke, Deutsches Institut RATHAUS . . Bonifatius, Hrabanus Maurus, Erzbischof Willigis, Johannes Gutenberg, Georg Forster,Wilhelm Emmanuel von Ketteler, Carl Zuckmayer und Anna Seghers ­ acht Leitfiguren der Mainzer Stadtgeschichte vom

  14. Chapter 1: Elementary Differential Equations and Boundary Value ...

    E-print Network

    2014-01-13

    The physical law that governs the motion of objects is Newton's second law, which ...... The subject of differential equations originated in the study of calculus by Isaac. Newton (1642-1727) and Gottfried Wilhelm Leibniz (1646-1716) in the ...

  15. This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research

    E-print Network

    Lebendiker, Mario

    condition Fusion protein Chaperone Protein aggregation Protein storage Protein concentration Stabilizer's personal copy Review Production of prone-to-aggregate proteins Mario Lebendiker , Tsafi Danieli Protein by Wilhelm Just Keywords: Intrinsically disordered protein Intrinsically disordered region Induction

  16. An extraordinary reversal: hermeneutics and the divide between the sciences 

    E-print Network

    McDaniel, William Caleb

    2001-01-01

    Theories of hermeneutics -- the study of interpretation -- have been used both to support and to reject the division of the natural and human sciences. Wilhelm Dilthey and Charles Taylor defend that divide, while Richard ...

  17. ARGON-40-ARGON-39 GEOCHRONOLOGY OF LUNAR METEORITE IMPACT MELT CLASTS. B. , T. D. Swindle, and D. A. Kring, The University of Arizona, Tucson AZ 85721

    E-print Network

    Cohen, Barbara Anne

    . Based on age and chemistry, 6-10 different impact events are represented. Though the young ages of some] Wilhelms D. E. (1987) USGS Prof. Paper 1348. [10] Sleep N. H. et al. (1989) Nature, 342, 139Ð142. [11

  18. SOME PROBLEMS ABOUT OPERATOR ALGEBRAS WITH SET-THEORETIC FLAVOR

    E-print Network

    Farah, Ilijas

    , Aleksander S. Kechris, Eberhard Kirchberg, N. Christopher Phillips, Ju- ris Stepr¯ans, Andrew Toms, Nik Weaver and Wilhelm Winter for conversations. Special thanks to N. Christopher Phillips for a number

  19. “GOING FORWARD”: A DIACHRONIC ANALYSIS OF THE THESAURUS LINGUAE LATINAE

    E-print Network

    Corbeill, Anthony P.

    2007-11-01

    The article anteeo, written by Wilhelm Bannier, was published in the Thesaurus Linguae Latinae (TLL) in 1901. This entry has been rewritten according to contemporary standards at the institute and edited at each step in ...

  20. A review of "Rosenkreuzerschriften" by Johann Valentin Andreae, ed. and trans. by Roland Edighoffe and "Schriften zur christlichen Reform", ed. and trans. by Frank Böhling 

    E-print Network

    Dickson, Donald R.

    2010-01-01

    reviews 133 Johann Valentin Andreae. Rosenkreuzerschriften. Edited and translated by Roland Edighoffer. Volume 3 of Gesammelte Schriften. Wilhelm Schmidt-Biggemann, general editor. Stuttgart-Bad Cannstatt: frommann-holzboog, 2010. 544 pp.... ?254. Johann Valentin Andreae. Schriften zur christlichen Reform. Edited and translated by Frank B?hling. Volume 6 of Gesammelte Schriften. Wilhelm Schmidt-Biggemann, general editor. Stuttgart-Bad Cannstatt: frommann-holzboog, 2010. 404 pp. ?103...

  1. SPINE Volume 30, Number 14, pp E406E413 2005, Lippincott Williams & Wilkins, Inc.

    E-print Network

    Abraham, Lawrence D.

    for Digital Fluoroscopic Video Assessment of Sagittal Plane Lumbar Spine Motion Deydre S. Teyhen, PT, PhD, OCS spine using enhanced digital fluoroscopic video (DFV) and a distortion compen- sated roentgen analysis). Each DFVs was enhanced with a series of filters to accentuate the vertebral edges. An adapted DCRA

  2. A New Technique for Digital Fluoroscopic Video Assessment of Sagittal Plane Lumbar Spine Motion

    Microsoft Academic Search

    Deydre S. Teyhen; Timothy W. Flynn; Alan C. Bovik; Lawrence D. Abraham

    2005-01-01

    Study Design. Methodological reliability. Objective. Develop a measurement technique to as- sess dynamic motion of the lumbar spine using enhanced digital fluoroscopic video (DFV) and a distortion compen- sated roentgen analysis (DCRA). Summary of Background Data. Controversy over both the definition and consequences of lumbar segmental instability persists. Information from static imaging has had limited success in providing an understanding

  3. Appendix I. List of Acronyms and Abbreviations, and Glossary of Terms

    E-print Network

    chloride FeP ferro-phosphorus FeS2 pyrite FIPR Florida Institute of Phosphate Research Fr francium #12;AI-2-density sludge Hg mercury hr hour ISL in situ leaching K potassium Kd element-specific soilBwater partition radium RCRA Resource Conservation and Recovery Act Rem Roentgen equivalent in man RESRAD computer model

  4. Three-dimensional in vivo displacements of the shoulder complex from biplanar radiography

    Microsoft Academic Search

    E. Berthonnaud; G. Herzberg; K. D. Zhao; K. N. An; J. Dimnet

    2005-01-01

    The goal of this study was to adapt roentgen photogrammetry to in vivo studies of shoulder skeletal motion during arm elevation in the scapular plane. Numerous in vitro and in vivo studies have been published describing shoulder bone movements. They involve plain radiographic measurements and utilize a three-dimensional (3D) approach. Measurements are either direct using pins implanted in bones, or

  5. Inexpensive Gamma Detector

    Microsoft Academic Search

    Donald R. Cone; David W. Garbellano

    1954-01-01

    A simple and inexpensive radiation detection device has been constructed sensitive to gamma fluxes in the range from a few to a few hundred roentgen per hour. Thus one can distinguish between dangerous and relatively safe radiation levels such as one might expect from radiological warfare, low level atomic blasts, or from ``rigged'' hydrogen bomb explosions.A typical device consists of

  6. Boston University Medical Campus Office of the Associate Provost for Research

    E-print Network

    Spence, Harlan Ernest

    for Suicide Prevention (3) American Roentgen Ray Society American Society of Hematology American Tinnitus://pivot.cos.com/funding_opps/145731 American Tinnitus Society Research Grant Program Amount Available: $150,000 This Research Grant Program financially supports scientific studies directly related to Tinnitus and finding a cure. DEADLINE

  7. Tumors of the chest wall in infants and children

    Microsoft Academic Search

    E. A. Franken; J. A. Smith; W. L. Smith

    1977-01-01

    Chest wall tumors of children may arise from subcutaneous tissues, the bony thorax, or extrapleural region. Review of experience at our institution and the literature indicates that primary bony tumors are most often malignant; Ewing's sarcoma is the most frequent in this category. Extrapleural tumors are rare but also usually malignant. Clinical and roentgen features of these lesions are discussed.

  8. PROS Support for PSPCs on the SRG mission

    Microsoft Academic Search

    A. Hornstrup; N. J. Westergaard; M. A. Conroy; J. S. Orszak

    1994-01-01

    In 1995, the Russian Spectrum Roentgen Gamma (SRG) satellite will be launched. The satellite contains several Xray telescopes, among which are the SODART telescope, developed by the Danish Space Research Institute, IKI Moscow, and NASA among others. DSRI provides 4 Position Sensitive Proportional Counters (PSPC) detectors (called HEPC and LEPC) in the focal plane of the SODART mirror module. PROS,

  9. CHANGES IN THE MORPHOLOGICAL COMPOSITION OF PERIPHERAL BLOOD IN CHILDREN SUBJECTED TO ROENTGENOLOGICAL EPILATION FOR FUNGUS DISEASES OF THE SCALP

    Microsoft Academic Search

    I. I. Pilger; E. G. Dolgov

    1962-01-01

    A long-term follow-up observation covered the state of peripheral blood ; in 15 chiidren subjected to roentgenological irradiation in connection with ; diseases of the scalp. The roentgen-epilation was shown to be accompanied with ; considerable derangements in the morphological composition of the blood, which ; was observable for a period of 100 days after irradiation. (auth);

  10. Cathartic colon

    Microsoft Academic Search

    Richard H. Marshak; Arnold Gerson

    1960-01-01

    Cathartic colon is not rare. Heilbrun reported 9 cases. We have seen 6 cases during the last 2 years. In 3 of these patients, a diagnosis of ulcerative colitis was made. Although a definite differential diagnosis from ulcerative colitis may be impossible on roentgen study, the changes described above should alert the radiologist to the possibility of cathartic colon. The

  11. CESTY K VEDECKÉMU OBJAVU (Prípadová štúdia z histórie vedy)

    Microsoft Academic Search

    Miroslav Karaba

    Scientific development is not smooth and linear; instead it is epi- sodic i. e. different kinds of science occur at different times. To illustrate some of the rich variety in the ways scientists have discovered new knowledge, I have chosen four cases to recount in this paper. In the first place, I wrote about Roentgen's discovery of x-rays as an

  12. Tinea corporis overlying the thyroid gland after radioiodine (131I) treatment of Graves' disease

    Microsoft Academic Search

    A. J. Moreno; M. F. Hartshorne; M. A. Yedinak; L. A. Crooks; B. J. Fox

    1986-01-01

    A case of tinea corporis involving the skin overlying the thyroid gland is described in a 36-year-old man who had received radioiodine treatment for Graves' disease. The dermatophytosis mimicked a delayed roentgen erythema. Radiation to the dermis may have locally altered the cell-mediated immunity and predisposed this patient to the dermatophytosis.

  13. Bioengineering 280A Principles of

    E-print Network

    Liu, Thomas T.

    shows twin gestation sacs (s) and bladder (B). Ultrasound System Acuson Sequoia Doppler Ultrasound #12 principles underlying the major modalities, including X-ray, computed tomography, MRI, and ultrasound. Basic of Medical Imaging 1895 - Roentgen discovers X-rays 1942 - Dussik demonstrates transmission ultrasound

  14. Bioengineering 280A Principles of

    E-print Network

    Liu, Thomas T.

    gestation sacs (s) and bladder (B). Ultrasound Systems Acuson Sequoia Sonosite 180 #12;6 Doppler Ultrasound principles underlying the major modalities, including X-ray, computed tomography, MRI, and ultrasound. Basic of Medical Imaging 1895 - Roentgen discovers X-rays 1942 - Dussik demonstrates transmission ultrasound

  15. Bioengineering 280A Principles of

    E-print Network

    Liu, Thomas T.

    Sonosite 180 #12;6 Doppler Ultrasound 3D Ultrasound History of MRI 1946: Felix Bloch (Stanford principles underlying the major modalities, including X-ray, computed tomography, MRI, and ultrasound. Basic of Medical Imaging 1895 - Roentgen discovers X-rays 1942 - Dussik demonstrates transmission ultrasound

  16. Bioengineering 280A Principles of

    E-print Network

    Liu, Thomas T.

    . Image shows twin gestation sacs (s) and bladder (B). Ultrasound System Acuson Sequoia #12;11 Doppler principles underlying the major modalities, including X-ray, computed tomography, MRI, and ultrasound. #12 of Medical Imaging 1895 - Roentgen discovers X-rays 1942 - Dussik demonstrates transmission ultrasound

  17. GAS TRANSMISSION IN IRRADIATED POLYETHYLENE

    Microsoft Academic Search

    Harris J. Bixler; Alan S. Michaels; Morris Salame

    1963-01-01

    The transmission of helium, nitrogen, methane, and propane was studied ; in samples of a high pressure, branched polyethylene (46% crystalline) irradiated ; to a dose in air of 10⁸ roentgens from a Co⁶° source. By using a ; time-lag apparatus the permeability, diffusion, and solubility constants were ; measured in the temperature range 0 to 55 nif- C. These

  18. A high-quality x-ray scattering experiment on liquid water

    Microsoft Academic Search

    G. L. Hura; J. M. Sorenson; R. M. Glaeser; T. Head-Gordon

    The structural investigation of water has a strong historical precedence, tracing roots at least as far back as Roentgen's early paper on the structure of water and the explanation of its density maximum. In principle, an accurate characterization of the molecular structure of liquid water can be found from solution scattering experiments. The structural information can be derived by back-

  19. CHEAPER ELECTRICITY OR A BETTER RIVER? ESTIMATING FLUVIAL ECOSYSTEM VALUE IN

    E-print Network

    Paris-Sud XI, Université de

    investigates this trade-off by means of a discrete choice experiment (DCE) to estimate people's preferences to environmental aspects. JEL Classification: H23, Q2, Q4, Q5 Keywords: Water Framework Directive, Choice Experiment, Hydropower. 1 Corresponding author: federico.pontoni@unibocconi.it. 1,Via Roentgen, 20136 ­ Milan

  20. Radiological aspects of Behcet disease

    SciTech Connect

    Rosenberger, A.; Adler, O.B.; Haim, S.

    1982-07-01

    The systemic manifestations of Behcet disease were evaluated retrospectively in 45 patients. Twenty-seven patients underwent radiographic examination. Twenty-two examinations (64.7%) showed positive but nonspecific findings, most of them involving the vascular tree. The roentgen diagnosis of Behcet disease will be influenced by the dermatologic and ophthalmologic findings.

  1. Digital automated RSA compared to manually operated RSA

    Microsoft Academic Search

    E. R. Valstar; H. A. Vrooman; S. Toksvig-Larsen; L. Ryd; R. G. H. H. Nelissen

    2000-01-01

    The accuracy of digital Roentgen stereophotogrammetric analysis (RSA) was compared to the accuracy of a manually operated RSA system. For this purpose, we used radiographs of a phantom and radiographs of patients. The radiographs of the patients consisted of double examinations of 12 patients that had a tibial osteotomy and of double examinations of 12 patients that received a total

  2. A new model-based RSA method validated using CAD models and models from reversed engineering

    Microsoft Academic Search

    B. L. Kaptein; E. R. Valstar; B. C. Stoel; P. M. Rozing; J. H. C. Reiber

    2003-01-01

    Roentgen stereophotogrammetric analysis (RSA) was developed to measure micromotion of an orthopaedic implant with respect to its surrounding bone. A disadvantage of conventional RSA is that it requires the implant to be marked with tantalum beads. This disadvantage can potentially be resolved with model-based RSA, whereby a 3D model of the implant is used for matching with the actual images

  3. Asynchronous Balanced Gates Tolerant to Interconnect Variability

    E-print Network

    Karpovsky, Mark

    Asynchronous Balanced Gates Tolerant to Interconnect Variability Konrad J. Kulikowski, Vyas to satisfy in practice. We present a novel asynchronous dual-rail gate design which is power balanced tolerance to timing constraints and the asynchronous operation simplify secure, power balanced design. I

  4. Evolution equation for quantum entanglement

    E-print Network

    Loss, Daniel

    LETTERS Evolution equation for quantum entanglement THOMAS KONRAD1 , FERNANDO DE MELO2,3 , MARKUS of the time evolution of this resource under realistic conditions--that is, when corrupted by environment describes the time evolution of entanglement on passage of either component through an arbitrary noisy

  5. Special Collections Page 1 of 6 University of Colorado at Boulder

    E-print Network

    Mojzsis, Stephen J.

    York: Henry Holt, 1947. DHT 610. Cigaretten-Bilderdienst, G.m.b.H. Adolf Hitler, Bilder aus dem Leben at Boulder Dietrich, Otto. Mit Hitler in die Macht: persönliche Erlebnisse mit meinem Führer. Berlin: Doubleday & Company, 1948. T-95-437. Heiden, Konrad. Der Fuehrer: Hitler's Rise to Power. Translated

  6. Factorization law for two lower bounds of concurrence

    SciTech Connect

    Mirafzali, Sayyed Yahya; Sargolzahi, Iman; Ahanj, Ali; Javidan, Kurosh; Sarbishaei, Mohsen [Department of Physics, Ferdowsi University of Mashhad, Mashhad (Iran, Islamic Republic of); Khayyam Institute of Higher Education, Mashhad, Iran and School of Physics, Institute for Research in Fundamental Science (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Department of Physics, Ferdowsi University of Mashhad, Mashhad (Iran, Islamic Republic of)

    2010-09-15

    We study the dynamics of two lower bounds of concurrence in bipartite quantum systems when one party goes through an arbitrary channel. We show that these lower bounds obey the factorization law similar to that of [Konrad et al., Nat. Phys. 4, 99 (2008)]. We also discuss the application of this property in an example.

  7. J. Eder, S. Dustdar et al. (Eds.): BPM 2006 Workshops, LNCS 4103, pp. 237 248, 2006. Springer-Verlag Berlin Heidelberg 2006

    E-print Network

    Dustdar, Schahram

    -Verlag Berlin Heidelberg 2006 Shop Floor Information Management and SOA Konrad Pfadenhauer1 , Burkhard Kittl1 to make the increasing fusion of business and IT successful in a dynamically changing and risk adverse for manufacturing operations management. This methodology was evaluated by means of the realization of a SOA

  8. PROXIMAL NESTING BY THE BLACK-BILLED MAGPIE AND TWO RAPTORS

    Microsoft Academic Search

    DAVID H. ELLIS

    1992-01-01

    proximity. Remarkable examples of raptors nesting near nonraptors include Great Horned Owls (Bubo virginianus) nesting in Great Blue Heron (Ardea herodias) colonies (Knight and Erickson 1978, Johnson 1976) and Peregrine Falcons (Falco peregrinus) in European heron colonies (Makatsch 1950, cited by Welty 1962:260- 262). Some raptor\\/nonraptor nesting associations may be mutually beneficial. Konrad and Gilmer (1982) reported 30 Western Kingbird

  9. High Reynolds Number Vortices with Magnetic Field in NonAxisymmetric Strain

    E-print Network

    Bajer, Konrad

    . These vortices are embedded in quasi­irrotational background flow whose straining action determines their crossHigh Reynolds Number Vortices with Magnetic Field in Non­Axisymmetric Strain Konrad Bajer­sectional shape. The structure of such vortices subject to non­axisymmetric strain was analysed in detail

  10. Simon M. Huttegger Department of Logic and Philosophy of Science

    E-print Network

    Stanford, Kyle

    Simon M. Huttegger Department of Logic and Philosophy of Science 3151 Social Science Plaza A University of California, Irvine, Associate Professor of Logic and Philosophy of Science 2010 - University of California, Irvine, Assistant Professor of Logic and Philosophy of Science 2008 - 2010 Konrad Lorenz

  11. 8970 Chem. Commun., 2013, 49, 8970--8972 This journal is c The Royal Society of Chemistry 2013 Cite this: Chem. Commun., 2013,

    E-print Network

    Timmer, Jens

    this: Chem. Commun., 2013, 49, 8970 Synthesis of phycocyanobilin in mammalian cells Konrad Mu*acd The chromophore 3-Z phycocyanobilin (PCB, (2R,3Z)-8,12-bis- (2-carboxyethyl)-18-ethyl-3-ethylidene-2 state by re-isomerization of the chromo- phore. In place of PfB, cyanobacteria use 3-Z phycocyanobilin

  12. Schulfach Englisch (The English Course)

    ERIC Educational Resources Information Center

    Loebner, Horst-Dieter

    1973-01-01

    Critical discussion of course objectives of English taught as a second language with reference to Konrad Schroder's Englisch als Schulfach'' (English as an Academic Subject), Neusprachliche Mitteilungen, v24 p144-152, and Helmut Schwartz's Noch einmal: Englisch als Schulfach'' (Once Again: English as an Academic Course), Neusprachliche…

  13. Eastern Europe in transition: the dilemmas of health.

    PubMed

    Jamrozik, K

    As the former Iron Curtain countries reconstruct, they must grapple with the health problems left by 40 years of public health neglect. Public health expert Konrad Jamrozik reports on his observations as a visiting fellow in Kraków, Poland, and asks: can they take the best and avoid the worst from the West? PMID:8538567

  14. Melting and resolidification of a subcooled metal powder particle subjected to nanosecond laser heating

    E-print Network

    Zhang, Yuwen

    of a subcooled spherical metal powder particle subjected to nanosecond laser heating are investigatedMelting and resolidification of a subcooled metal powder particle subjected to nanosecond laser heating Chad Konrad 1 , Yuwen Zhang *, Yu Shi Department of Mechanical and Aerospace Engineering

  15. Pedro Waloschek as Life-Savers

    E-print Network

    and Konrad Gund's `Electron-Catapults' ....................... 173 Chronology not during World War II. The extensive literature on secret weapons provides us with very few mentions that their developments were indispensable for producing a specific weapon, which could prove decisive for a conclusive

  16. University of Wroclaw Wroclaw, Poland

    E-print Network

    Levinson, David M.

    , Nobel Prize, medicine Konrad Bloch, Nobel Prize, medicine Max Born, Nobel Prize, physics Philipp Lenard, Nobel Prize, physics Erwin Schrodinger, Nobel Prize, physics Otto Stern, Nobel Prize, physics Eduard Buchner, Nobel Prize, chemistry Fritz Haber, Nobel Prize, chemistry Gerhart Hauptmann, Nobel Prize

  17. Design Patterns for Private and Public Digital Spaces in the Home Environment

    E-print Network

    Tollmar, Konrad

    Design Patterns for Private and Public Digital Spaces in the Home Environment (Abbreviated Title: Private and Public Digital Spaces) Stefan Junestrand*,**,***, Ulf Keijer***, Konrad Tollmar private and being public becomes crucial. In this paper we introduce the so called design patterns

  18. GEORG-AUGUST-UNIVERSITT Computer Security

    E-print Network

    Grabowski, Jens

    GEORG-AUGUST-UNIVERSITÄT GÖTTINGEN Computer Security Overview and Introduction Computer Security Security @ Göttingen » Research group for comuter security » Prof. Dr. Konrad Rieck » 4 PhD students (+ 2 security » Research on analysis, detection and prevention of threats » Development of intelligent security

  19. A New Age of Risk James Hansen

    E-print Network

    Hansen, James E.

    , NY #12;Global Warming Status 1. Knowledge Gap Between - What of ocean during 2003-2008 based on ARGO data. Knowledge of Earth's energy imbalance is improving rapidly with snowmelt. Graph credit: Konrad Steffen, Univ. Colorado #12;Gravity Satellite Ice Sheet Mass

  20. A data and code model for reproducible research and executable papers

    E-print Network

    Boyer, Edmond

    A data and code model for reproducible research and executable papers Konrad Hinsen Centre de code, and presentation can be stored together in a single file suitable for electronic publication]. Executable papers carry this idea one step further: a single published digital object should contain

  1. Caveat Lector: Reviewing Popular Social Science.

    ERIC Educational Resources Information Center

    Hixson, Vivian Scott

    1981-01-01

    Discusses problems with reviews and criticisms of popular social science books: the quality and background of reviewers, the difficulty of distinguishing between fact and opinion, and the scarcity of competent reviewers. Analyzes reviews of Robert Ardrey's "African Genesis" and "The Territorial Imperative," Konrad Lorenz's "On Aggression," and…

  2. ORIGINAL ARTICLE Embodiment versus memetics

    E-print Network

    Bryson, Joanna J.

    , UK e-mail: J.J.Bryson@bath.ac.uk J. J. Bryson Konrad Lorenz Institute for Evolution and Cognition Research, Adolf Lorenz Gasse 2, 3422 Altenberg, Austria 123 Mind & Society (2008) 7:77­94 DOI 10.1007/s

  3. MARGA VICEDO teaches history of biology at the Institute for the History and Philosophy of Science and Technology at the University of Toronto. She holds a PhD in philosophy of science from the University of

    E-print Network

    Vicedo, Marga

    of this legend Harlow is pre- sented as part of a triumvirate, with Konrad Lorenz and Bowlby. In this triad, Lorenz provided the theoretical foundation to understand human behavior as a set of instincts or innate on monkeys, Lorenz's research on imprinting, and Bowlby's research on children were related and appropriated

  4. SHORT COMMUNICATIONS 149 energetics of small birds. Journal of Thermal Bi-

    E-print Network

    Richner, Heinz

    ´tage, 7 Quai St Bernard, case 237, F-75252 Paris cedex 05 2Konrad Lorenz Institute, Austrian Academy. LORENZ. 1981. Der Torpor beim Rotru¨ckenmausvogel, Colius casta- notus. Journal fu¨r Ornithologie 122:379­392. PRINZINGER, R., R. GO¨ PPEL, A. LORENZ, AND E. KULZER. 1981. Body temperature and metabolism in the Red

  5. MAN MEETS WOLF Ethological perspectives

    E-print Network

    Packard, Jane M.

    Klinghammer, Konrad Lorenz, Erik Zimen, Sybille Schafer Kalas, Luigi Boitani, Peter Colin, Dave Mech, Ulie 2008 Lorenz (1953) #12;To understand our dogs, we need to know their ancestors, the wolves Lorenz (1953) J.M.PackardKZL/JMP #12;Thank you! Graphics: Lorenz (1953) Man Meets Dog; L.D. Mech (1991

  6. MAN MEETS WOLF Ethological perspectives

    E-print Network

    Packard, Jane M.

    ) #12;"So satisfying to disprove at least one hypothesis before breakfast!" Konrad Lorenz, personal 2008 Lorenz (1953) #12;Father wolf howls for his pups.... ....tracks them, then "cuts the corner" back Lorenz (1953) J.M.PackardKZL/JMP #12;Dedication Lorenz (1953) JMP KZL JMP JMP Lorenz (1953) #12;Seewiesen

  7. Some Issues Concerning Aggression and Violence in Human Beings.

    ERIC Educational Resources Information Center

    Ponton, Elizabeth

    1986-01-01

    Examines aggression and violence from an interdisciplinary perspective. Humanistic psychologist Rollo May sees violence as the end product of power deprivation. Anthropologists Konrad Lorenz and Robert Ardrey regard aggression as an innate biological drive. Anthropologist Richard Leakey views it as a learned, culturally determined response.…

  8. Anim. Behav.,1986,34, 1601-1616 The making of ethology

    E-print Network

    Little, Tony

    ); and for another, Konrad Lorenz was already hard at work behind the scenes, directing the energies of the newly-formed society into distinctively ethological channels. Privately, Lorenz corresponded with his mentor society (Heinroth 1971); and publicly, Lorenz addressed an early meeting of the society on the need

  9. OBSERVATION AND INFERENCE CRITICAL THINKING ACTIVITY QUESTION: What is the social structure of dogs?

    E-print Network

    Packard, Jane M.

    #5 Lorenz Source: Lorenz, Konrad. 1953. Man meets dog. Penguin Books: New York. (pp 117-118) Source of the Emotions in Man and Animals. The University of Chicago Press: Chicago. (pp50-51) Source: Lorenz 1953 "Not: Lorenz 1953 "Another fence story concerns my old Bully and his mortal enemy, a white Spitz, which lived

  10. SHORT-TERM FORECASTING OF SOLAR RADIATION BASED ON SATELLITE DATA WITH STATISTICAL METHODS

    E-print Network

    Heinemann, Detlev

    Hammer, Detlev Heinemann, Elke Lorenz, and Bertram Lückehe Department of Energy and Semiconductor-441-798-3545, Fax +49-441-798-3326, E-mail elke.lorenz@uni-oldenburg.de Abstract ­ This paper describes the various fields, based on an approach for the estimation of motion developed by Konrad and Dubois[7], which

  11. Age-Related Inhibition and Learning Effects: Evidence from Transitive Performance

    E-print Network

    Bryson, Joanna J.

    .j.bryson@bath.ac.uk) Department of Computer Science, University of Bath Bath, BA2 7AY, United Kingdom The Konrad Lorenz Institute for Evolution and Cognition Research Adolf Lorenz Gasse 2, A-3422 Altenberg, Austria Abstract In the absence

  12. Evolution of Behavior: Phylogeny and the Origin of Present-Day Diversity

    E-print Network

    Ord, Terry

    implementing a rigorous scientific approach to the study of animal behavior, Konrad Lorenz of the earliest efforts to examine the evolution of behavior was Lorenz's reconstruc- tion of motor patterns and call types in waterfowl (figure 7.1). Without the aid of a computer, Lorenz meticulously grouped

  13. Jahresbericht 2 Jahresbericht 2009

    E-print Network

    Schüler, Axel

    Tockler 1 1514 Wolfgang Schindler 1514 Johannes Rogge 1515 Johannes Koel 1515 Alexander Sockler 151 Lange Romanus 1607 Christoph Bruno 1607 Wolfgang Corvinus 1608 Georg Feige 1608 Otto Schwa Konrad Bavarus 1611 Geutebrück, der Universitätskirche st. Pauli, dem café Felsche und der Nikolaikirche am heutigen

  14. Enhancing energy conserving methods \\Lambda Sebastian Reich

    E-print Network

    Reich, Sebastian

    Enhancing energy conserving methods \\Lambda Sebastian Reich Konrad­Zuse Zentrum Berlin Heilbronner], achieves conservation of energy by a global scaling of the force field. This leads to an undesirable also show how to combine an energy conserving discretization of the strong forces with a symplectic

  15. Table of Contents Preface: General Chair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

    E-print Network

    Tomkins, Andrew

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Unsupervised Topic Modelling for Multi-Party Spoken Discourse Matthew Purver, Konrad P. Körding, Thomas L. Griffiths and Joshua B. Tenenbaum. . . . . . . . . . .17 Minimum Cut Model for Spoken Lecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 A Finite-State Model of Human Sentence Processing Jihyun Park and Chris Brew

  16. Special relationship between sterols and oxygen: Were sterols an adaptation to aerobic life?

    Microsoft Academic Search

    Anne M. Galea; Andrew J. Brown

    2009-01-01

    A fascinating link between sterols and molecular oxygen (O2) has been a common thread running through the fundamental work of Konrad Bloch, who elucidated the biosynthetic pathway for cholesterol, to recent work supporting a role of sterols in the sensing of O2. Synthesis of sterols by eukaryotes is an O2-intensive process. In this review, we argue that increased levels of

  17. Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15

    E-print Network

    Giger, Christine

    ETH Zurich Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15 8093 Zurich, Switzerland Prof. Dr. Konrad Schindler Photogrammetry and Remote Sensing Tel.: +41 44 633 3004 Fax: +41 44 633 1101 e-mail: schindler@geod.baug.ethz.ch www.photogrammetry.ethz.ch Photogrammetry Lab 4: Facade

  18. Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15

    E-print Network

    Giger, Christine

    ETH Zurich Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15 8093 Zurich, Switzerland Prof. Dr. Konrad Schindler Photogrammetry and Remote Sensing Tel.: +41 44 633 3004 Fax: +41 44 633 1101 e-mail: schindler@geod.baug.ethz.ch www.photogrammetry.ethz.ch Photogrammetry Lab 2: Direct Linear

  19. Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15

    E-print Network

    Giger, Christine

    ETH Zurich Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15 8093 Zurich, Switzerland Prof. Dr. Konrad Schindler Photogrammetry and Remote Sensing Tel.: +41 44 633 3004 Fax: +41 44 633 1101 e-mail: schindler@geod.baug.ethz.ch www.photogrammetry.ethz.ch Digital Photogrammetry II (MA), HS

  20. Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15

    E-print Network

    Giger, Christine

    ETH Zurich Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15 8093 Zurich, Switzerland Prof. Dr. Konrad Schindler Photogrammetry and Remote Sensing Tel.: +41 44 633 3004 Fax: +41 44 633 1101 e-mail: schindler@geod.baug.ethz.ch www.photogrammetry.ethz.ch Photogrammetry & 3D Vision Lab, HS

  1. Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15

    E-print Network

    Giger, Christine

    ETH Zurich Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15 8093 Zurich, Switzerland Prof. Dr. Konrad Schindler Photogrammetry and Remote Sensing Tel.: +41 44 633 3004 Fax: +41 44 633 1101 e-mail: schindler@geod.baug.ethz.ch www.photogrammetry.ethz.ch Photogrammetric Computer Vision

  2. Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15

    E-print Network

    Giger, Christine

    ETH Zurich Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15 8093 Zurich, Switzerland Prof. Dr. Konrad Schindler Photogrammetry and Remote Sensing Tel.: +41 44 633 3004 Fax: +41 44 633 1101 e-mail: schindler@geod.baug.ethz.ch www.photogrammetry.ethz.ch Digitale Photogrammetrie I (BA), HS

  3. Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15

    E-print Network

    Giger, Christine

    ETH Zürich Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse 15 8093 Zürich, Switzerland Prof. Dr. Konrad Schindler Photogrammetry and Remote Sensing Tel.: +41 44 633 3004 Fax: +41 44 633 1101 e-mail: schindler@geod.baug.ethz.ch www.photogrammetry.ethz.ch Digitale Photogrammetrie (BA

  4. Part 8, Authors: K To Kyzer

    E-print Network

    Segal, Dorothy B.; Ray, Doris H.; Carson, Gertrude B.; Hassall, Albert; Doss, Mildred A.

    1946-01-01

    . Stuttgart. Festschr. Feier Karl Wilhelm v. N?geli u. Albert v. K?lliker.?Festschrift zur Feier des 50 J?hrigen Doctor-Jubil?ums Herrn Prof. Dr. Karl Wilhelm von N?geli in M?nchen und Herrn Geheimrath Prof. Dr. Albert von K?lliker in W?rzberg, Gewid- met.... Gesellsch.? Abhandlungen bei Begr?ndung der K?nig- lich S?chsischen Gesellschaft der Wissen-schaften am Tage der Zweihundertj?hrigen Geburtsfeier Leibnizens Herausgegeben von der F?rstlich Jablonowskischen Gesell- schaft. Leipzig. Abhandl. Geb. Naturw...

  5. Prospects for AGN Science using the ART-XC on the SRG Mission

    NASA Technical Reports Server (NTRS)

    Swartz, Douglas A.; Elsner, Ronald F.; Gubarev, Mikhail V.; O'Dell, Stephen L.; Ramsey, Brian D.; Bonamente, Massimiliano

    2012-01-01

    The enhanced hard X-ray sensitivity provided by the Astronomical Roentgen Telescope to the Spectrum Roentgen Gamma mission facilitates the detection of heavily obscured and other hard-spectrum cosmic X-ray sources. The SRG all-sky survey will obtain large, statistically-well-defined samples of active galactic nuclei (AGN) including a significant population of local heavily-obscured AGN. In anticipation of the SRG all-sky survey, we investigate the prospects for refining the bright end of the AGN luminosity function and determination of the local black hole mass function and comparing the spatial distribution of AGN with large-scale structure defined by galaxy clusters and groups. Particular emphasis is placed on studies of the deep survey Ecliptic Pole regions.

  6. Tibial bone mineral distribution as influenced by calcium, phosphorus, and vitamin D feeding levels in the growing turkey

    NASA Technical Reports Server (NTRS)

    Spurrell, F. A.; Brenes, J.; Waibel, P.

    1974-01-01

    Roentgen signs, subperiosteal, endosteal, and trabecular bone growth are evaluated in turkeys fed phosphorus at the 0.5, 0.56, 0.68, 0.90, and 2.70 percent levels. Calcium levels of 0.30, 0.40, 0.60, 1.2, and 3.60 percent were also tested. Vitamin D levels of 0, 100, 300, 900 and 27,000 I.U. per day were likewise evaluated. Roentgen signs, bone mineral as measured by T-125 gamma ray absorption, and bone mineral growth patterns as shown by radiograph area projection are correlated with calcium, phosphorus, and vitamin D feeding levels. Differences in bone growth at the various feeding levels were observed which were not reflected by differences in other studied parameters.

  7. Flight Programs and X-ray Optics Development at MSFC

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; O'Dell, S. L.; Elsner, R.; Kilaru, K.; Atkins, C.; Swartz, D.; Gaskin, J.; Weisskopf, Martin

    2012-01-01

    The X-ray astronomy group at the Marshall Space Flight Center is developing electroformed nickel/cobalt x-ray optics for suborbital and orbital experiments. Suborbital instruments include the Focusing X-ray Solar Imager (FOXSI) and Micro-X sounding rocket experiments and the HERO balloon payload. Our current orbital program is the fabrication of a series of mirror modules for the Astronomical Roentgen Telescope (ART) to be launched on board the Russian-German Spectrum Roentgen Gamma Mission (SRG.) The details and status of these various programs are presented. A second component of our work is the development of fabrication techniques and optical metrology to improve the angular resolution of thin shell optics to the arcsecond-level. The status of these x-ray optics technology developments is also presented.

  8. Spectrum-RG astrophysical project

    Microsoft Academic Search

    M. Pavlinsky; R. Sunyaev; E. Churazov; A. Vikhlinin; S. Sazonov; M. Revnivtsev; V. Arefiev; I. Lapshov; V. Akimov; V. Levin; M. Buntov; N. Semena; S. Grigorovich; V. Babyshkin; P. Predehl; G. Hasinger; H. Böhringer; J. Schmitt; A. Santangelo; A. Schwope; J. Wilms

    2009-01-01

    The Spectrum-Roentgen-Gamma mission will be launched in the 2012 year into a L2 orbit with Soyuz launcher and Fregat buster from Baikonur. The mission will conduct all-sky survey with X-ray mirror telescopes eROSITA and ART-XC up to 11 keV. It will allow detection of about 100 thousand clusters of galaxies and discovery large scale Universe structure. It will also discover

  9. Labelling of Radiographic Contrast Media with Iodine131

    Microsoft Academic Search

    J. Liebster; J. Kácl; A. Babický

    1959-01-01

    THE rapid development and general acceptance of contrast media represents one of the outstanding successes of diagnostic röntgenology. Roentgen contrast media are generally di- or tri-iodo derivatives of benzene or pyridine, containing further substituents influencing solubility. The most widely used contrast compounds are 3,5-diiodo-4-pyridon-N-acetic acid as its diethanolamine salt (`Iodopyracet', `Diodrast', `Diodone', `Ioduron', etc.), and N-methyl-3,5-diiodo-chelidamate as its disodium salt

  10. Use of radionuclides in cancer research and treatment

    Microsoft Academic Search

    M. Teresa Macías

    2009-01-01

    Cancer occurs as a result of misregulation of cell growth, which appears to be a consequence of alteration in the function\\u000a of oncogenes and tumour suppressor genes. Ionising radiation has been used, since the discovery of X-rays in 1896 by Roentgen,\\u000a both in cancer research and treatment of the disease. The main purpose of cancer research is to understand the

  11. Role of Imaging in Cancer Treatment

    Microsoft Academic Search

    Anthony F. Shields; P. Price

    Cancer therapy and cancer imaging are scientific and clinical companions. Most cancers are initially detected by an imaging\\u000a technique, either through the routine screening of at-risk populations or by the evaluation of patients presenting with symptoms.\\u000a Imaging the human body began as part of routine clinical care with the development of X-ray imaging by Roentgen. While X-rays\\u000a still play an

  12. Star identification techniques used for attitude determination and control of the X-ray satellite Rosat

    Microsoft Academic Search

    M. Bollner

    1987-01-01

    The Rosat spacecraft (ROentgen SATellite) will carry a large X-ray telescope and a smaller XUV telescope. The main goal of the mission is to perform the first all-sky survey with an imaging X-ray telescope. Also, pointing to selected celestial targets will be accomplished. The spacecraft is three-axis stabilized using reaction wheels, gyros and imaging star trackers as main attitude devices.

  13. Effects of electrical stimulation on the myofibril protein degradation and fragmentation in bovine longissimus dorsi muscle and its relationship to tenderness 

    E-print Network

    Procknor, Maria Lucia Salles Cunha

    1984-01-01

    EFFECTS OF ELECTRICAL STIMULATION ON THE MYOFIBRIL PROTEIN DEGRADATION AND FRAGMENTATION IN BOVINE LONGISSIMUS DORSI MUSCLE AND ITS RELATIONSHIP TO TENDERNESS A Thesis by Maria Lucia Salles Cunha Procknor Submitted to the Graduate College... IN BOVINE LONGISSIMUS DORSI MUSCLE AND ITS RELATIONSHIP TO TENDERNESS A Thesis by MARIA LUCIA SALLES CUNHA PROCKNOR Approved as to style and content by: Thayne R. Dutson (Co-Chairman) Jeffrey W. Savell (Co-Chairman) Konrad A. Eugster (Member...

  14. Einleitung

    NASA Astrophysics Data System (ADS)

    Walther-Klaus, Ellen

    Deutschland hat sich in den letzten Jahrzehnten den internationalen Ruf erworben, auf dem Gebiet der Technologie führend zu sein. Große, weitreichende Erfindungen sind in Deutschland gemacht worden. Viele Nobelpreise gehen nach Deutschland: Robert Bosch, Nikolaus Otto und Konrad Zuse gehören genauso zu den großen Erfindern, wie Melitta Bentz und Emmy Noether. 85 % aller Nobelpreise, die seit 1901 nach Deutschland gingen, sind in den Kategorien Chemie, Physik und Medizin vergeben worden. Allein im Jahr 2007 wurden in Deutschland fast 50.000 Patente angemeldet.

  15. Source Universalia (Encyclopaedia Universalis) Date Juin 2004

    E-print Network

    opposer l'art roman, « ébauche d'un développement artistique nouveau et autonome » à l'art gothique, dont sur l'art et sur l'origine de l'activité artistique de Konrad Fiedler L'historien de l'art allemand histoire de l'art. Parallèlement à l'école de Vienne et au formalisme de l'objet artistique qu

  16. THE AMERICAN AG·RICULTURE MOVEMENT: MANIFEST AND LATENT PARTICIPANT ATTRACTIONS IN A SOCIAL MOVEMENT

    E-print Network

    Foster, Gary S.

    1980-04-01

    ..161 .. Wieduwilt, ·M. nod JUrgens, :.tf;.W.t EinsteDungen der vdeutschen ·Bevolke­ rung und der auslandischen Arbeitnehmer, in .Konrad-Adenauer..Stiftung, ::;lnt~ation ·.ausIandischer·Arbeitnehmer.Eingliederung, .Einstellungen, Weiterbildung, Bonn 1976, 52...Carthy (1972:670.) note the increased sta:us and legitimacy extended to movements by television. utili­ zation. Hunters and fishermen have found land access is often barred w~h. "AAM: No Hunting, Fishing, or Trespassing" signs, transforming AAM's status to a...

  17. EVALUACIÓN DEL AJUSTE Y DESAJUSTE EN NIÑOS Y JÓVENES DE ESTRATO SOCIOECONÓMICO BAJO DE BOGOTÁ1

    Microsoft Academic Search

    JUAN CARLOS; RICARDO SALAMANCA; KONRAD LORENZ

    T his paper describes levels of adjustment, non-adjustment, internalization and externalization identified in a group of 262 children and adolescents distributed in three groups according to their ages, 4-7, 9-13 and 14-17 who participated in a study about prevention of aggressive behavior and promotion of pro-social conducts developed by Fundación Universitaria Konrad Lorenz and co-financed by Colciencias. The results of

  18. The development of ornithology in central Europe

    Microsoft Academic Search

    J. Haffer

    2007-01-01

    The first ornithologist since Aristotle was the emperor Friedrich II of Hohenstaufen whose work on falconry (written before\\u000a 1248) includes a general account of birds based largely on his personal observations. Other medieval workers on birds were\\u000a Albertus Magnus, Thomas di Cantimpré and Konrad von Megenberg. Gybertus Longolius (1544) and William Turner (1544) reported\\u000a on some birds of the Rhine

  19. THE RADIATION THERAPY PLANNING PROBLEM CHRISTOPH BORGERS

    E-print Network

    Börgers, Christoph

    THE RADIATION THERAPY PLANNING PROBLEM CHRISTOPH BORGERS 1. Introduction. The purpose of this paper is to describe mathemat- ical aspects of radiation therapy planning to readers with a background in applied mathematics. The use of X-rays for cancer therapy began a few days after their dis- covery. Wilhelm Rontgen

  20. Alphabet Soup: ERP, CT, and ACT for OCD

    ERIC Educational Resources Information Center

    Tolin, David F.

    2009-01-01

    The present article comments on the case conference presented in this issue, namely, Himle and Franklin's (Himle & Franklin, 2009) exposure and response prevention (ERP); Chosak and colleagues' (Chosak, Marques, Fama, Renaud, & Wilhelm, 2009) cognitive therapy (CT); and (Twohig, 2009) Acceptance and Commitment Therapy (ACT). Two questions are…

  1. The golden age of body psychotherapy in Oslo II: From vegetotherapy to nonverbal communication

    Microsoft Academic Search

    Michael Coster Heller

    2007-01-01

    In a previous article, Heller (2007) described how body psychotherapy arrived in Oslo at the beginning of the Second World War. This paper will describe how Wilhelm Reich became a catalyst for passionate discussions between psychiatrists, psychoanalysts, psychologists, physiotherapists, dance therapists, and vegetotherapists. The result is probably a creativity and professionalism that has never been found again in the field

  2. Experience-dependent phase-reversal of hippocampal neuron firing during REM sleep

    Microsoft Academic Search

    Gina R. Poe; Douglas A. Nitz; Bruce L. McNaughton; Carol A. Barnes

    2000-01-01

    The idea that sleep could serve a cognitive function has remained popular since Freud stated that dreams were “not nonsense” but a time to sort out experiences [S. Freud, Letter to Wilhelm Fliess, May 1897, in The Origins of Psychoanalysis — Personal Letters of Sigmund Freud, M. Bonaparte, A. Freud, E. Kris (Eds.), Translated by E. Mosbacher, J. Strachey, Basic

  3. NimbRo TeenSize 2011 Team Description Sven Behnke and Marcell Missura

    E-print Network

    Behnke, Sven

    NimbRo TeenSize 2011 Team Description Sven Behnke and Marcell Missura Rheinische FriedrichCup Humanoid League team NimbRo TeenSize of Rheinische Friedrich-Wilhelms-Universit¨at Bonn, Germany Introduction Our TeenSize team participated with great success at last year's RoboCup Hu- manoid League

  4. Das Zentrum fr internationale Studierende ZiS des International Office informiert: UNIVERSITT

    E-print Network

    Mayberry, Marty

    of the Lorraine region. A university and many higher schools specialized for example in music and engineering 1901 and 1904, when the Lorraine region belonged to Germany. The church is one of many buildings in the town that were built in order to rep- resent the power of the German Emperor Wilhelm II in the Lorraine

  5. AQUATIC MICROBIAL ECOLOGY Aquat Microb Ecol

    E-print Network

    Wilhelm, Steven W.

    of © Inter-Research 2003 · www.int-res.com*Email: wilhelm@utk.edu UV radiation induced DNA damage in marine, Smithville, Texas 78957, USA ABSTRACT: UV radiation induced DNA damage (inferred from cyclobutane pyrimidine that naturally occurring UV radiation represents the most significant factor implicated in the destruction

  6. Portrayals of Wundt and Titchener in Introductory Psychology Texts: A Content Analysis.

    ERIC Educational Resources Information Center

    Zehr, David

    2000-01-01

    Examines the content of introductory psychology books by performing a content analysis on texts from the 1970s and 1990s to determine whether the books incorporated recent historical scholarship in discussions of Wilhelm Wundt and Edward Titchener. Finds that some texts still misrepresent the relation between Wundt and Titchener. (CMK)

  7. Solar harvest

    Microsoft Academic Search

    Anna Demming

    2010-01-01

    The first observations of the photoelectric effect date back to the early 19th century from work by Alexandre Edmond Becquerel, Heinrich Hertz, Wilhelm Hallwachs and J J Thomson. The theory behind the phenomena was clarified in a seminal paper by Einstein in 1905 and became an archetypical feature of the wave–particle description of light. A different manifestation of quantised electron

  8. Real-Time Capable Methods to Determine the Magnet Temperature of Permanent Magnet

    E-print Network

    Paderborn, Universität

    - reluctance motors [2]­[4]. From a device utilisation point of view the maximum feasible temperatures Motors -- A Review Oliver Wallscheid, Tobias Huber, Wilhelm Peters, Joachim B¨ocker Power Electronics}@lea.upb.de Abstract--The permanent magnet synchronous motor (PMSM) is widely used in highly utilised automotive

  9. Exploring the Periphery: Perspectives from Applied Linguistics,

    E-print Network

    Moeller, Ralf

    Stefanie Quakernack Julia Reckermann Diana Fulger Astrid Haas Nathan Devos Till Meister Contact Email: Literary and Cultural Studies (Moderation: Astrid Haas) Katja Sarkowsky ­ Westfälische Wilhelms-pay) SATURDAY, NOVEMBER 9.00-9.15 Opening Remarks (Astrid Haas) 9.15-11.30 Panel IV: (Postcolonial) Challenges

  10. Prediction of Prokaryotic Transcription Units from Microarray Data Revisited

    E-print Network

    Hochreiter, Sepp

    Prediction of Prokaryotic Transcription Units from Microarray Data Revisited Ulrich Bodenhofer, Wilhelm Lichtberger, Frank Klawonn In prokaryotic genomes, a transcription unit is a set of one or more co the knowledge about E.coli. For less investigated prokaryotes, it allows to infer hypotheses about transcription

  11. Finding Plans with Branches, Loops and Preconditions Siddharth Srivastava and Neil Immerman and Shlomo Zilberstein

    E-print Network

    Zilberstein, Shlomo

    , we present approaches for computing program-like plans that work in multiple situations the benefits of such representations have become clear, there has been relatively slower progress in finding, TVLA (Sagiv, Reps, & Wilhelm 2002), in the pre- viously unexplored direction of learning generalized

  12. Request for issue of final certificate Master's Programme in Mathematics

    E-print Network

    Svejda, Adela

    WilhelmsUniversität Bonn Name: First Name: Date of Birth: Matriculation Number: Compulsory Modules (36 CP) Master's Thesis Master's Thesis Seminar Optional Modules (84 CP): Optional Modules ­ Lecture Courses (at least 45 CP from areas AF or additional foundations; up to 27 CP may stem from foundation or additional

  13. Automorphisms of manifolds and algebraic theory of surgery

    E-print Network

    Macko, Tibor

    Automorphisms of manifolds and algebraic theory of surgery Tibor Macko Westf¨alische Wilhelms Macko (WWU M¨unster) Automorphisms of mfds & algebraic surgery 6th NRW 1 / 23 #12;Goal To present the surgery theory class. of top. mfds. Application to mfds SV / (j.w. with M. Weiss) A homotopy fibration

  14. MOTION CONTROL OF AN OMNIDIRECTIONAL MOBILE ROBOT Xiang Li, Andreas Zell

    E-print Network

    Zell, Andreas

    MOTION CONTROL OF AN OMNIDIRECTIONAL MOBILE ROBOT Xiang Li, Andreas Zell Wilhelm.li@uni-tuebingen.de, andreas.zell@uni-tuebingen.de Keywords: Mobile robots and autonomous systems, system identification of an omnidirectional mobile robot. A new control method based on the inverse input-output linearized kinematic model

  15. Proceedings of the Annual Conference of the Western Regional Home Management-Family Economics Educators (25th, Scottsdale, Arizona, November 6-8, 1985).

    ERIC Educational Resources Information Center

    Berry, Ruth E., Ed.

    These proceedings consist of 12 presentations, most of which are followed by responses or comments. The papers include: "Integrating Family Economics and Family Counseling" (Hogan; discussants Schnittgrund, Wilhelm); "A Test of the Deacon-Firebaugh Management Model" (Gage, Schmid); "Perceived Income Adequacy and Selected Financial Management…

  16. The Manhattan Effect 1 Running Head: THE MANHATTAN EFFECT

    E-print Network

    Reber, Paul J.

    The Manhattan Effect 1 Running Head: THE MANHATTAN EFFECT The Manhattan Effect: When Relationship Wilhelm Hofmann University of Cologne Date: November 20, 2013 #12;The Manhattan Effect 2 Abstract Research in such situations is termed the Manhattan effect. These findings suggest that the partner

  17. TYCHO Brahe's Empiric Methods, His Instruments, His Sudden Escape from Denmark and a New Theory About His Death

    Microsoft Academic Search

    C. Thykier

    1992-01-01

    Tycho Brahe (1546-1601) was born a noble being, a son of Otto Brahe, and a member of the Royal Danish Council. Very early he developed a great interest in science and especially astronomy. In 1575 Tycho visited the learned Prince Wilhelm II in Kassel. Here he was inspired by the famous instrument maker Burgi to build new precise astronomical instruments,

  18. Literary Origins of the Term "School Psychologist" Revisited

    ERIC Educational Resources Information Center

    Fagan, Thomas K.

    2005-01-01

    Previous research on the literary origins of the term "school psychologist" is revisited, and conclusions are revised in light of new evidence. It appears that the origin of the term in the American literature occurred as early as 1898 in an article by Hugo Munsterberg, predating the usage by Wilhelm Stern in 1911. The early references to the…

  19. Drifting from Slow to "D'oh!": Working Memory Capacity and Mind Wandering Predict Extreme Reaction Times and Executive Control Errors

    ERIC Educational Resources Information Center

    McVay, Jennifer C.; Kane, Michael J.

    2012-01-01

    A combined experimental, individual-differences, and thought-sampling study tested the predictions of executive attention (e.g., Engle & Kane, 2004) and coordinative binding (e.g., Oberauer, Suss, Wilhelm, & Sander, 2007) theories of working memory capacity (WMC). We assessed 288 subjects' WMC and their performance and mind-wandering rates during…

  20. Hipparchus, Plutarch, Schroder and Hough Richard P. Stanley

    E-print Network

    Hipparchus, Plutarch, Schroder and Hough Richard P. Stanley 1. Hipparchus and Plutarch. Plutarch. Schroder. Friedrich Wilhelm Karl Ernst Schroder was a German logician who was born in Mannheim on November, and Baden-Baden, before accepting a post as full professor at Karlsruhe in 1876. Schroder worked mainly

  1. Hipparchus, Plutarch, Schroder and Hough Richard P. Stanley

    E-print Network

    Hipparchus, Plutarch, Schr¨oder and Hough Richard P. Stanley 1. Hipparchus and Plutarch. Plutarch, p. 63]. 2. Schr¨oder. Friedrich Wilhelm Karl Ernst Schr¨oder was a German logician who was born), Karlsruhe, Pforzheim, and Baden­Baden, before accepting a post as full professor at Karlsruhe in 1876. Schr¨oder

  2. Smart heating control with occupancy prediction: How much

    E-print Network

    Smart heating control with occupancy prediction: How much can one save? Wilhelm Kleiminger-1-4503-3047-3/14/09$15.00. http://dx.doi.org/10.1145/2638728.2641555 Abstract Research results on smart heating systems based is crucial to bring research on smart heating systems a step forward. We outline the main factors influencing

  3. Technologie Smart metering Technologie Smart metering

    E-print Network

    Technologie Smart metering Technologie Smart metering 29Bulletin 9/2014 Innovative Dienste mit intelligenten Stromzählern Standby- und Kühlgeräteverbrauch aus Smart-Meter-Daten Smart Meter ermöglichen weit den Einsatz von hochauflösenden Smart Metern möglich werden. Wilhelm Kleiminger et al. Der Stellenwert

  4. Opportunistic Sensing for Smart Heating Control in Private Households

    E-print Network

    in the home, our solution may significantly lower the adoption barrier of smart heating solutions. 1-grained data from smart electricity meters, which are increasingly finding their way into private homes [1Opportunistic Sensing for Smart Heating Control in Private Households Wilhelm Kleiminger, Silvia

  5. Einschrnkungen durch Umzug der HU-Bibliothek

    E-print Network

    Röder, Beate

    WASKOMMT Einschränkungen durch Umzug der HU-Bibliothek Am 12. Juni haben die Umzüge der Universitätsbibliothek der HU an ihren neuen Standort im Jacob-und-Wilhelm-Grimm-Zen- trum in der Geschwister-Scholl- Str Schließzeiten der betroffenen Zweigbibliotheken sind im Internet nachzulesen. www.ub.hu

  6. MERCURY IN PETROLEUM AND NATURAL GAS: ESTIMATION OF EMISSIONS FROM PRODUCTION PROCESSING, AND COMBUSTION: PROJECT REPORT/SUMMARY

    EPA Science Inventory

    NRMRL-RTP-221 Wilhelm, S.M. Mercury in Petroleum and Natural Gas: Estimation of Emissions from Production Processing, and Combustion. 07/19/2001 The report gives results of an examination of mercury (Hg) in liquid and gaseous hydrocarbons that are produced and/or processed i...

  7. History of experimental psychology from an Estonian perspective.

    PubMed

    Allik, Jüri

    2007-11-01

    A short review of the development of experimental psychology from an Estonian perspective is presented. The first rector after the reopening of the University of Dorpat (Tartu) in 1802, Georg Friedrich Parrot (1767-1852) was interested in optical phenomena which he attempted to explain by introducing the concept of unconscious inferences, anticipating a similar theory proposed by Herman von Helmholtz 20 years later. One of the next rectors, Alfred Wilhelm Volkmann (1800-1878) was regarded by Edwin Boring as one of the founding fathers of the experimental psychology. Georg Wilhelm Struve (1793-1864) played an essential part in solving the problem of personal equations. Arthur Joachim von Oettingen (1836-1920) developed a theory of music harmony, which stimulated his student Wilhelm Friedrich Ostwald (1853-1932) to study colour harmony. Emil Kraepelin (1856-1926), the founder of modern psychiatry, is by far the most important experimental psychologist who has worked in Estonia. His successor Wladimir von Tchisch (1855-1922), another student of Wilhelm Wundt, continued Kraepelin's work in experimental psychology. The lives of Wolfgang Köhler (1887-1967), who was born in Reval (Tallinn), and Oswald Külpe (1862-1915), who graduated from the University of Dorpat, extended the link between the history of experimental psychology and Estonia. Karl Gustav Girgensohn (1875-1925), the founder of the Dorpat School of the psychology of religion, stretched the use of experimental methods to the study of religious experience. PMID:16639614

  8. Blind Ambition On Tuesday the Royal Swedish Academy of Sciences will announce the winners of the 2013 Nobel Prize in Physics. Since 1901,

    E-print Network

    of the 2013 Nobel Prize in Physics. Since 1901, when Wilhelm Conrad Röntgen was named the first recipient explanations for the low number of women who have received a Nobel Prize in Physics: 1. There are not enough and resources to enable them to be in position to win a Nobel Prize. 4. The pool of nominees includes too few

  9. [Denaturalized psychoanalysts].

    PubMed

    Peglau, Andreas

    2011-01-01

    This paper presents hitherto unknown material from the German Foreign Office referring to the denaturalization of Therese Benedek, Bruno Bettelheim, Adolf Storfer and Wilhelm Reich by Nazi Germany. It corroborates the finding that nobody was persecuted by the Nazis solely on the basis of psychoanalytic activities or membership in a psychoanalytic organization. PMID:21598596

  10. PURSUING AUTOMATED CLASSIFICATION OF HISTORIC PHOTOGRAPHIC PAPERS FROM RAKING LIGHT IMAGES

    E-print Network

    Abry, Patrice

    dataset, Computational art history, Digital huma- nities, Art authentication, Image processing for art University of Wisconsin Worcester Polytechnic Institute Worcester Art Museum Ecole Normale Superieure de of Technology Museum of Modern Art Wilhelm Imaging Research University of Santa Clara Indiana University

  11. xvi Preface to the second edition Acknowledgments

    E-print Network

    Fitelson, Branden

    , William Talbot, Wilhelm Vossenkuhl, Fritz Warfield and Paul Weirich. In addition, I have continued to benefit from regular exchanges of ideas or papers (usually both) with many philosophers, including William Alston, Laurence Bonjour, Panayot Butchvarov, Elizabeth Fricker, Alvin Goldman, John Greco, Gilbert

  12. A General Joint Component Framework For Realistic Articulation in Human New York University

    E-print Network

    Toronto, University of

    of other autonomous charac- ters in the virtual environment. While recent research has focused on better geometric representations [DeRose et al. 1998], anatomy- based modelling [Scheepers et al. 1997; Wilhelms such as 3-D computer games and virtual reality have benefited from im- provements in graphics hardware

  13. Art and computer science converge in the investigation of emergence and self-organization through the field of sensor

    E-print Network

    Fagg, Andrew H.

    to an individual element of primordial biological energy identified as an "orgone" by the scientist Wilhelm Reich functioning unit of all living matter. At the same time, it is the bearer of a quantum of orgone energy and was convinced of the existence of an omnipresent primordial biological energy that he called orgone. According

  14. Brothers Grimm Bicentenntial: Blueprint for a Community Celebration.

    ERIC Educational Resources Information Center

    Novak, Sigrid Scholtz

    Faculty at McNeese State University (Louisiana) and local civic, educational, and cultural groups encouraged their community to commemorate the anniversary of the births of Jacob and Wilhelm Grimm, German scholars who recorded fairy tales, myths, legends, and folk songs that are now an important part of the western world's cultural heritage,…

  15. On the CR-structure of compact group orbits associated with bounded symmetric domains

    E-print Network

    On the CR-structure of compact group orbits associated with bounded symmetric domains Wilhelm Kaup by isometries. On the other hand, K inherits from E a Cauchy-Riemann structure (CR-structure), that is given the holomorphic tangent space to K at x (see [7] and [3] as general references for CR-manifolds). Of interest

  16. On the CR-structure of compact group orbits associated with bounded symmetric domains

    E-print Network

    On the CR-structure of compact group orbits associated with bounded symmetric domains Wilhelm Kaup by isometries. On the other hand, K inherits from E a Cauchy-Riemann structure (CR-structure), that is given is called the holomorphic tangent space to K at x (see [7] and [3] as general references for CR

  17. Nome do aluno(a) Curso do aluno Cidade/Estado Douglas Anderson dos Santos Filosofia So Paulo/SP

    E-print Network

    Lucero, Jorge Carlos

    Fisioterapia Curitiba/PR Camila de Lima Alvim Fisioterapia Curitiba/PR Danilo Veloso Alves Carreiro Fisioterapia Curitiba/PR Guilherme Wilhelms Tavares Quimica Santiago/Chile Leticia Nagao Antropologia Pelotas/RS Matheus Serra de Holanda Quimica Santiago/Chile Nádya Bruna Holanda Barbosa Fisioterapia Curitiba

  18. Jacob Bernoulli, Ph.D. Erhard Weigel, Ph.D. Universitt Leipzig 1650

    E-print Network

    Matta, Abraham "Ibrahim"

    Jacob Bernoulli, Ph.D. Erhard Weigel, Ph.D. Universität Leipzig 1650 Gottfried Wilhelm Leibniz, Dr. jur. Universität Altdorf 1666 Johann Bernoulli, Ph.D. 1694 Leonhard Euler, Ph.D. Universität Basel 1726 Joseph Louis Lagrange, Ph.D. Simeon Denis Poisson, Ph.D. Jean-Baptiste Joseph Fourier, Ph

  19. Dynamical Evolution of Planets in Disks Planets in resonant Orbits

    E-print Network

    Kley, Willy

    :1 resonance. Resonant capture leads to a rise in the eccentricity and to an alignment of the of the spatialDynamical Evolution of Planets in Disks Planets in resonant Orbits W. Kley (wilhelm case a resonant trapping into the 3:1 resonance, and in the second case a trapping into the 2

  20. Regulation of TGF-b signal transduction by mono-and deubiquitylation of Smads Sirio Dupont a,

    E-print Network

    Newfeld, Stuart J.

    Review Regulation of TGF-b signal transduction by mono- and deubiquitylation of Smads Sirio Dupont 2012 Available online 24 March 2012 Edited by Joan Massagué and Wilhelm Just Keywords: BMP Smad4/Medea such as receptors and Smads. Recently, an equally impor- tant role was suggested for monoubiquitylation of both Smad

  1. "The Lengthened Shadow of One Man": The Public Intellectual and the Founding of Universities.

    ERIC Educational Resources Information Center

    Wyatt, John

    1998-01-01

    Identifies five intellectuals who made distinctive contributions to the founding of new universities in England, Germany, and the United States. Institutional and individual biographies profile: Thomas Jefferson (University of Virginia); Wilhelm von Humboldt (University of Berlin); Lord Brougham (University College, University of London); A.D.…

  2. Limnol. Oceanogr., 49(2), 2004, 588596 2004, by the American Society of Limnology and Oceanography, Inc.

    E-print Network

    588 Limnol. Oceanogr., 49(2), 2004, 588­596 2004, by the American Society of Limnology addition experiments Emma S. Kritzberg Department of Ecology/Limnology, Lund University, S-223 62 Lund 12545 Wilhelm Grane´li Department of Ecology/Limnology, Lund University, S-223 62 Lund, Sweden Darren L

  3. Bildung as a Powerful Tool in Modern University Teaching

    Microsoft Academic Search

    Mogens Noergaard Olesen

    In this paper we will demonstrate how powerful ?Bildung? is as a tool in modern university teaching. The concept of ?Bildung? was originally introduced by the German philosopher Immanuel Kant (Kant 1787, 1798, 1804) and the Prussian lawyer and politician Wilhelm von Humboldt (Humboldt 1792, Bohlin 2008). From 1810 ?Bildung? was a key concept in German university teaching where the

  4. Do-It-Yourself Single-Lens Anaglyph Capture COMPUTATIONAL PHOTOGRAPHY involves the use of cameras

    E-print Network

    Dietz, Henry G. "Hank"

    Do-It-Yourself Single-Lens Anaglyph Capture COMPUTATIONAL PHOTOGRAPHY involves the use of cameras of an image. This method does not require any special computing support.... An ANAGLYPH is a color image ­ like the above image. The concept of an anaglyph is usu- ally credited to Wilhelm Rollman

  5. Differentiation

    Microsoft Academic Search

    Kurt Meyberg; Peter Vachenauer

    \\u000a Die Differentialrechnung wurde — unabhängig voneinander — von Gottfried Wilhelm Leibniz (1646–1716) und Isaac Newton (1642–1727) entwickelt. Sie stellt eines der vielseitigsten Hilfsmittel in der mathematischen Behandlung der Naturwissenschaften\\u000a (einschließlich der Technik) dar.

  6. Envelopes and Ring Waves by Karima Khusnutdinova

    E-print Network

    Khusnutdinova, Karima

    .wikipedia.org/wiki/Gottfried Wilhelm Leibniz Newton (1642-1727) classified differential equations of the first order and developed Equations, 1926. "Differential equations were invented by Newton (1642-1727)... The completion;Early history of differential equations http : //en.wikipedia.org/wiki/Isaac Newton http : //en

  7. Design Considerations for Stand-alone Haptic Interfaces Communicating via UDP Protocol

    E-print Network

    Tan, Hong Z.

    Design Considerations for Stand-alone Haptic Interfaces Communicating via UDP Protocol Ryan M for high speed communication between a stand-alone haptic interface and a computer running haptic rendering. Traylor,1 Danny Wilhelm,1 Bernard D. Adelstein2 and Hong Z. Tan1 1 Haptic Interface Research Laboratory

  8. The blood from Auschwitz and the Silence of the scholars

    Microsoft Academic Search

    Benno Müller-Hill

    2003-01-01

    The Kaiser Wilhelm Institute for Anthropology, Human Genetics and Eugenics in Berlin-Dahlem was the centre of scientific racism in Nazi Germany. Its bad history culminated in a research project to analyse the molecular basis of racial differences in the susceptibility to various infectious diseases such as tuberculosis. Josef Mengele, a former postdoc of the director of the institute, Otmar von

  9. a Preprintreihe SFB 478 { Geometrische Strukturen in der Mathematik

    E-print Network

    of the Bruhat{Tits building of PGL by lattices of smaller rank A. Werner ISSN 1435-1188 #12; #12; Preprintreihe alischen Wilhelms-Universit at M unster Heft 156 Compacti#12;cation of the Bruhat{Tits building of PGL Mittel gedruckt. #12; #12; Compacti#12;cation of the Bruhat-Tits building of PGL by lattices of smaller

  10. Aromatic Interactions in Organocatalyst Design: Augmenting Selectivity Reversal in Iminium Ion Activation.

    PubMed

    Holland, Mareike C; Metternich, Jan Benedikt; Daniliuc, Constantin; Schweizer, W Bernd; Gilmour, Ryan

    2015-07-01

    Invited for the cover of this issue is the group of Ryan Gilmour at the Westfälische Wilhelms-Universität Münster. The image depicts how the modes of stereoinduction differ for- N-methylpyrrole to- N-methylindole. Read the full text of the article at 10.1002/chem.201500270. PMID:25980976

  11. It is not just a job its a WINDTEST! Wind Energy with Power Plant Properties?WINDTEST

    E-print Network

    -Wilhelm-Koog GmbH #12;1. Introduction 2. Active power control 3. Fault ride through 4. Reactive power control 5 of birth: 1978 Studies: Power Systems Engineering at the Technical University of Clausthal, Germany Diploma of the authors (1/2) 3/25 #12;personal: year of birth: 1968 married, two children education: electrician Studies

  12. NimbRo @Home 2009 Team Description Sven Behnke, Jorg Stuckler, and Michael Schreiber

    E-print Network

    Behnke, Sven

    to transfer the efficient and robust communi- cation strategies that humans use in their face-to-face by external spur gears. For the use as communication robot, we equipped Robotinho with an expres- sive 15DOF-Wilhelms-Universit¨at Bonn, Germany, for the competition to be held in Graz in July 2009. Our team uses self

  13. Information und Auskunft: UdS, FR Chemie, 0681/302-70650

    E-print Network

    Mayberry, Marty

    .11.2011 (Donnerstag) Von Nano-Chemie und Nano-Technologie Prof. Dr. Dr. h.c. Michael Veith, Anorganische Chemie 23 Technologie 21.12.2011 Woher kommen die chemischen Elemente auf der Erde? Prof. Dr. Wilhelm Maier, Technische

  14. Logic and Sets 1.1. Logical connectives

    E-print Network

    Goodman, Fred

    truth values of A and B. For example: · "Julius Caesar was the first Roman emperor, and Wilhelm II was the last German emperor" is true, because both parts are true. · "Julius Caesar was the first Roman emperor, and Peter the Great was the last German emperor" is false because the second part is false. · "Julius Caesar

  15. a Preprintreihe SFB 478 --Geometrische Strukturen in der Mathematik

    E-print Network

    Mittel gedruckt. #12; #12; Z­STABLE ASH ALGEBRAS ANDREW S. TOMS AND WILHELM WINTER Abstract. The Jiang infinite algebras covered by Kirchberg's classification of O 2 ­stable C # ­algebras and by Kirchberg--Phillips ­ Noncommutative Geometry (Contract No. HPRN­CT­2002­00280) and NSERC Postdoctoral Fellowship. 1 #12; 2 ANDREW S

  16. Preferential States of Longitudinal Tension in the Outer Tissues of Taraxacum officinale (Asteraceae) Peduncles

    Microsoft Academic Search

    Karl J. Niklas; Dominick J. Paolillo

    1998-01-01

    We tested Wilhelm Hofmeister's hypothesis that the outer layers of herbaceous stem tissues are held in a preferential state of longitudinal tension by more internal stem tissues that are held in a reciprocal state of compression. We measured (1) the biaxial stiffness of dandelion peduncles that were barometrically inflated with a Scholander pressure bomb, and (2) the stiffness and mechanical

  17. JOURNALDE PHYSIQUEN ColloqueC7, supplkmentau Journal de Physique 111, Volume 3, novembre 1993

    E-print Network

    Boyer, Edmond

    materials already in use optimally fulfill current requirements, there is little prospect of alternative Materials used in automobile manufacture - current state and perspectives M. WILHELM Mercedes-BenzAG, ZWTIGA material - for example with regard to increased strength or better corrosion-resistance- does not represent

  18. Plant synapses: actin-based domains for cell-to-cell communication

    E-print Network

    Bonn, Universität

    Plant synapses: actin-based domains for cell-to-cell communication Frantisek Baluska, Dieter-Wilhelms-University of Bonn, Kirschallee 1, D 53115 Bonn, Germany For many years it has been known that plants perform rapid in plants. Plants also synthesize numerous neuronal molecules and fulfill some criteria for intelligent

  19. Monitoring Critical Temperatures in Permanent Magnet Synchronous Motors Using Low-Order

    E-print Network

    Paderborn, Universität

    typically used as traction motor in subcompact electric cars. Keywords-- thermal model, linear parameter Models Tobias Huber, Wilhelm Peters, Joachim Böcker Power Electronics and Electrical Drives University of Paderborn 33098 Paderborn, Germany huber@lea.upb.de Abstract--Monitoring critical temperatures in electric

  20. The Genealogy of Judgement: Towards a Deep History of Academic Freedom

    ERIC Educational Resources Information Center

    Fuller, Steve

    2009-01-01

    The classical conception of academic freedom associated with Wilhelm von Humboldt and the rise of the modern university has a quite specific cultural foundation that centres on the controversial mental faculty of "judgement". This article traces the roots of "judgement" back to the Protestant Reformation, through its heyday as the signature…

  1. Looking for One's Shadow at Noon: Vol. II. Finding the Self in School and Community.

    ERIC Educational Resources Information Center

    Leue, Mary M.

    This volume contains a collection of essays, reflections, and other writings (many of which originally appeared in several journals) on the relations among self and school and community. The first selection is an obituary of Fritz Perls, a leader of Gestalt therapy. The second essay, "A Social and Political Reassessment of the Work of Wilhelm…

  2. ["... why is it that I see everything so differently ..?" A letter to Theodor Reik about psychoanalytic technique (Berlin, February 7th, 1933)].

    PubMed

    Heimann, Paula

    2005-01-01

    A letter by Paula Heimann to her training analyst Th. Reik, written shortly before her emigration to London, sheds light on some controversies, centering in particular around Wilhelm Reich, which shaped continental psychoanalytic clinical discourse in the early 1930's as well as on Heimann's own future development as a clinician. PMID:17152762

  3. [A note on the technical debate between Reich/Fenichel and Theodor Reik (1932-1936)].

    PubMed

    Schröter, Michael

    2005-01-01

    Wilhelm Reich's technical emphasis on the "systematic analysis of defenses" was controversial even before 1933. His main opponent in this field was Reik who expressed his criticism several times from 1932 to 1935. For Reik, the analytical process was essentially open, dependent on surprise. Fenichel, Reich's ally, defended a "scientific" approach, as opposed to "intuition", but later adopted a mediatory position. PMID:17152763

  4. SIP Extensions for the eXtensible Service Author: Vahid Mosavat

    E-print Network

    Maguire Jr., Gerald Q.

    Preface I worked at this thesis as a degree project in Ericsson Research, in Stockholm, during the period. Carl Wilhelm Welin, for his advise and all support at Ericsson. Tom Rindborg, for his advices and all supports at Ericsson. Bjarne Däcker, for all supports at Ericsson and to be a kindness chef at Ericsson

  5. Short Paper: Reactive Jamming in Wireless Networks--How Realistic is the Threat?

    E-print Network

    Lenders, Vincent

    Short Paper: Reactive Jamming in Wireless Networks-- How Realistic is the Threat? Matthias Wilhelm In this work, we take on the role of a wireless adversary and investigate one of its most powerful tools--radio fre- quency jamming. Although different jammer designs are discussed in the literature, reactive

  6. Max Wertheimer's challenging legacy

    Microsoft Academic Search

    Michael Wertheimer

    1989-01-01

    Max Wertheimer's past contributions to psychology were recognized, 45 years after his death, by the posthumous award to him in 1988 of the Wilhelm Wundt medal of the Deutsche Gesellschaft für Psychologie. The award acknowledged the elegant model of experimental work represented by his original studies of the perception of apparent motion, the development and promulgation of the influential Gestalt

  7. Neustrukturierung Neue Wirkungssttten der

    E-print Network

    Manstein, Dietmar J.

    Ihr Prof. Dr. med. S. Bleich Die neue Poliklinik und Institutsambulanz wird geleitet von: Frau Prof.`in Dr. med. K. Müller-Vahl Frau PD Dr. med. J.Wilhelm Der zuständige Bereichsleiter ist: Herr Prof. Dr. med. H. Frieling An der Anmeldung werden Sie weiterhin Frau P. Hogreve und Frau I. Mogilewska begrüßen

  8. On Efficient Fixed-Parameter Algorithms for Weighted Vertex Cover1

    E-print Network

    Wichmann, Felix

    On Efficient Fixed-Parameter Algorithms for Weighted Vertex Cover1 Rolf Niedermeier3 Wilhelm October 2001; revised December 2002 We investigate the fixed-parameter complexity of Weighted Vertex Cover. Given a graph G = (V, E), a weight function : V R+ , and k R+, Weighted Vertex Cover (WVC for short

  9. Explorations in Regional Variation: A Variational Pragmatic Perspective

    ERIC Educational Resources Information Center

    Barron, Anne

    2015-01-01

    The present article introduces the Special Issue entitled "A Variational Pragmatic Approach to Regional Variation in Language," a collection of papers which celebrates the work of Klaus P. Schneider (Rheinische Friedrich-Wilhelms-Universität Bonn, Germany) on the occasion of his 60th birthday.

  10. The #a = #b Pictures are Recognizable Klaus Reinhardt

    E-print Network

    Reinhardt, Klaus

    The #a = #b Pictures are Recognizable Klaus Reinhardt Wilhelm-Schickhard Institut fur Informatik@informatik.uni-tuebingen.de Abstract. We show that the language of pictures over fa; bg (with a reasonable relation between height-order logic. Classi#12;cation: Automata and formal languages, Logic 1 Introduction In [GRST94] pictures are de

  11. Geology of Shackleton Crater and the south pole of the Moon Paul D. Spudis,1

    E-print Network

    Spudis, Paul D.

    , including the 20 km-diameter crater Shackleton. The south pole is located inside the topographic rim.g., Wilhelms et al., 1979]. Because the lunar spin axis is oriented about 1.5° from a normal to the ecliptic]. This feature is over 2600 km in diameter, averages 12 km depth, and is approximately centered at 56° S, 180

  12. Reading Motivation: Exploring the Elementary Gender Gap

    ERIC Educational Resources Information Center

    Marinak, Barbara A.; Gambrell, Linda B.

    2010-01-01

    In an attempt to more clearly understand the erosion of motivation in some readers, a number of researchers (Mohr, 2006; Smith & Wilhelm, 2002) and organizations (The Education Alliance, 2007) have called for the investigation of gender differences in all readers, including young children. Consequently, this study focused on younger, average…

  13. Literacy and Neuroplasticity: Transforming Our Perspectives and Ourselves

    ERIC Educational Resources Information Center

    Wilhelm, Jeffrey D.

    2010-01-01

    Wilhelm applies two of his core beliefs--that anyone can learn the next appropriate concept or process if they are provided with a meaningful situation and proper assistance, and that literacy and the kinds of texts we call literature provide a unique and powerful way of knowing and of transforming the self--to a look at how recent research on the…

  14. ROBUST BUILDING DETECTION IN AERIAL IMAGES Sonke Muller

    E-print Network

    ROBUST BUILDING DETECTION IN AERIAL IMAGES S¨onke M¨uller , Daniel Wilhelm Zaum Institut f}@tnt.uni-hannover.de, corresponding author KEY WORDS: Building, Extraction, Aerial, Segmentation, Classification, Land Use. ABSTRACT The robust detection of buildings in aerial images is an important part of the automated interpretation

  15. Cultured economic theory: oxymoron or incipient reality?

    Microsoft Academic Search

    Saumitra Jha

    2004-01-01

    was characterised by strong dierences,of opinion with respect to the relevance of abstract modelling techniques. While economists in Victorian England, Austria and the United States were developing the formal underpinnings of modern economic theory, the chairs of political economy in Germany were held by members of the Historical School, founded by Wilhelm Roscher, Bruno Hildebrand and Karl Knies. With its

  16. Returning to the Scene of the Crime: The Brothers Grimm and the Yearning for Home

    Microsoft Academic Search

    Maureen Clack

    2006-01-01

    Almost two hundred years ago, in 1812, two German brothers, Jacob and Wilhelm Grimm, collected folk stories, and revised and published them in a book of fairy tales. The publication, Grimm's Fairy Tales, remains amongst the best sellers in contemporary western children's literature despite increasing feminist concerns that the tales deliver outdated and inappropriate patriarchal messages. This thesis seeks to

  17. USGS Open-File Report 00214 August 2000

    E-print Network

    contribute considerable loads of chemical constituents that are not removed during infiltration (Wilhelm and must be pumped out peri- odically. Liquid is decanted from the top of the tank and transported on many chem- ical constituents such as dissolved ions like sodium and chloride. The U.S. Geological

  18. Learning to Play the Literacy and Learning Games--A Question of Enculturation

    ERIC Educational Resources Information Center

    Wilhelm, Jeffrey D., Ed.

    2007-01-01

    Understanding that learning must be relevant and purposeful to be effective and engaging, Wilhelm emphasizes the value of teaching students "how to participate in meaningful activity in ways that make them increasingly expert in creating culture and . . . cultural meanings." He offers bullet points that suggest starting with students' experiences,…

  19. Akos Kiss (Ed.) 13th Symposium on

    E-print Network

    Ferenc, Rudolf

    Csetverikov, P´eter Ekler, Rudolf Ferenc, Zsolt Gazdag, Ferenc Havasi, Zolt´an Herczeg, Judit J´asz, R´obert Kitlei, Tam´as M´esz´aros, Zolt´an Micskei, ´Akos Szoke, Zal´an Szugyi, Zolt´an ´Ujhelyi, Andr´as V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Vard Antinyan, Miroslaw Staron, Wilhelm Meding, Per ¨Osterstr¨om, Henric Bergenwall, Johan Wranker

  20. A review of "The Keyboard in Baroque Europe" by Christopher Hogwood, ed.

    E-print Network

    Graham H. Phipps

    2004-01-01

    of this composer. Included are stops in Dresden, Brussels, Utrecht, London, Paris, REVIEWS 309 and Regensburg. The reader learns that, during his time in Brussels, Froberger was not in the service of Archduke Leopold Wilhelm of Austria, as has been asserted...

  1. PROS Support for PSPCs on the SRG mission

    NASA Astrophysics Data System (ADS)

    Hornstrup, A.; Westergaard, N. J.; Conroy, M. A.; Orszak, J. S.

    In 1995, the Russian Spectrum Roentgen Gamma (SRG) satellite will be launched. The satellite contains several Xray telescopes, among which are the SODART telescope, developed by the Danish Space Research Institute, IKI Moscow, and NASA among others. DSRI provides 4 Position Sensitive Proportional Counters (PSPC) detectors (called HEPC and LEPC) in the focal plane of the SODART mirror module. PROS, the Xray analysis package under IRAF, developed by SAO initially to reduce ROSAT and Einstein data, has now been extended to support reduction of data from the HEPC/LEPC detectors on-board SRG. The poster presents the results of the reduction of simulated HEPC/LEPC data.

  2. Forty years of Galilean Electromagnetism (1973-2013)

    NASA Astrophysics Data System (ADS)

    Rousseaux, Germain

    2013-08-01

    We review Galilean Electromagnetism since the 1973 seminal paper of Jean-Marc Lévy-Leblond and Michel Le Bellac and we explain for the first time all the historical experiments of Rowland, Vasilescu Karpen, Roentgen, Eichenwald, Wilson, Wilson and Wilson, which were previously interpreted in a Special Relativistic framework by showing the uselessness of the latter for setups involving slow motions of a part of the apparatus. Galilean Electromagnetism is not an alternative to Special Relavity but is precisely its low-velocity limit in Classical Electromagnetism.

  3. Accelerators for charged particle therapy

    NASA Astrophysics Data System (ADS)

    Flanz, Jacob

    2015-04-01

    History has shown that energetic particles can be useful for medical applications. From the time, in 1895 when Roentgen discovered X-rays, and in 1913 when Coolidge developed the vacuum X-ray tube, energetic particles have been an important tool for medicine. Development of the appropriate tool for effective and safe radiotherapy requires an in-depth understanding of the application and constraints. Various solutions are possible and choices must be analyzed on the basis of the suitability for meeting the requirements. Some of the requirements of charged particle therapy are summarized and various accelerator options are described and discussed.

  4. Calcification of the pancreas

    Microsoft Academic Search

    C. Abbott Beling

    1940-01-01

    Summary  All cases of disseminated calcification of the pancreas reported in the literature are presented in brief. The 13th case is\\u000a herewith reported in detail. It presents several characteristic features in etiology, symptomatology, and roentgen and laboratory\\u000a findings.\\u000a \\u000a Attention is drawn to the difference between pancreatic lithiasis and disseminated parenchymal calcification of the pancreas.\\u000a \\u000a \\u000a The apparent rarity of the disease is

  5. Cataractogenic effects of proton radiation 

    E-print Network

    Kyzar, James Ronald

    1972-01-01

    Roentgen in 1895 it has been recognized that. ionizing radiation possesses the ability to damage the lens of the eye. A few cases of radiation induced cataracts in early x-ray technicians and in patients re- ceiving radiation therapy to the head were... reported (13) . During this period interest in the phenomenon of radiation damage was limited mainly to x-rays as this was the only type of ionizing radiation having any degree of wide- spread use. Also, study of such radiation cataracts was confined...

  6. Metastases in the oral cavity. Case reports.

    PubMed

    Bu?in, E; Andréasson, L; Björlin, G

    1982-10-01

    4 cases of metastases in the oral cavity are described. They were seen in patients with carcinoma of the renal pelvis, renal carcinoma, breast carcinoma and malignant melanoma. In 3 of the cases, the metastases were situated distally to the canines in the mandible, where Roentgen examination had revealed a radiolucent area, and in the 4th case, in the soft tissue in the upper jaw. The initial symptoms in all 4 cases were swelling, pain or decreased sensitivity. The metastases were diagnosed, on average, 7 years after diagnosis of the primary tumour. PMID:6818172

  7. Cataractogenic effects of proton radiation

    E-print Network

    Kyzar, James Ronald

    1972-01-01

    Roentgen in 1895 it has been recognized that. ionizing radiation possesses the ability to damage the lens of the eye. A few cases of radiation induced cataracts in early x-ray technicians and in patients re- ceiving radiation therapy to the head were...CATARACTOGENIC EFFECTS OF PROTON RADIATION A Thesis by James Ronald Kyzar Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1972 Major Subject...

  8. On the potential energy in a gravitationally bound two-body system with arbitrary mass distribution

    E-print Network

    K. Wilhelm; B. N. Dwivedi

    2015-02-12

    The potential energy problem in a gravitationally bound two-body system has recently been studied in the framework of a proposed impact model of gravitation (Wilhelm and Dwivedi 2015). The result was applied to the free fall of the so-called Mintrop--Ball in G\\"ottingen with the implicit assumption that the mass distribution of the system is extremely unbalanced. An attempt to generalize the study to arbitrary mass distributions indicated a conflict with the energy conservation law in a closed system. This necessitated us to reconsider an earlier assumption made in selecting a specific process out of two options (Wilhelm et al. 2013). With the result obtained here we can now make an educated selection and reverse our choice. The consequences are presented and discussed in detail for several processes. Energy and momentum conservation could now be demonstrated in all cases.

  9. Anomalous Earth flybys of spacecraft

    NASA Astrophysics Data System (ADS)

    Wilhelm, Klaus; Dwivedi, Bhola N.

    2015-07-01

    A small deviation from the potential is expected for the gravitational interaction of extended bodies. It is explained as a consequence of a recently proposed gravitational impact model (Wilhelm et al. in Astrophys. Space Sci. 343:135-144, 2013) and has been applied to anomalous perihelion advances by Wilhelm and Dwivedi (New Astron. 31:51-55, 2014). The effect—an offset of the effective gravitational centre from the geometric centre of a spherical symmetric body—might also be responsible for the observed anomalous orbital energy gains and speed increases during Earth flybys of several spacecraft. However, close flybys would require detailed considerations of the orbit geometry. In this study, an attempt is made to explain the anomalous Earth flybys of the Galileo, NEAR Shoemaker and Rosetta spacecraft.

  10. A note on the history of the Norwegian Psychoanalytic Society from 1933 to 1945.

    PubMed

    Anthi, Per; Haugsgjerd, Svein

    2013-08-01

    The Norwegian analysts, who were trained in Berlin before 1933, were drawn into a struggle against fascism, informed by politically leftist analysts who worked at the Berlin Institute. The Norwegian group, including the analysts Wilhelm Reich and Otto Fenichel, were committed to Marxist or social democratic ideologies in order to fight down fascism and Nazism. They were a source of inspiration but also of conflict. After the war the leadership of the IPA was sceptical about the Norwegian group because of its former connections with Die Linke, as well as its relations with Wilhelm Reich. This paper in part considers the courageous efforts of Nic Waal, whom Ernest Jones used as a delegate and courier to solve problems for the IPA and who was unjustly treated after the war. PMID:23924331

  11. The poetics of mid-Victorian scientific materialism in the writings of John Tyndall, W.K. Clifford and others

    E-print Network

    Mackowiak, Jeffrey Robert

    2008-01-15

    - The Presentations (and Representations) of Scientific Naturalism in Mid-Victorian Literary Culture 18 CHAPTER 2 - Tyndall’s Crepuscular Materialism: Orations at Belfast, 19 August, and Manchester, 2 October 1874 50 CHAPTER 3 - Materialism’s Afterlife... of spectroscopy. Robert Wilhelm Bunsen’s discovery of the identity between ‘lines’ observed in solar (and extra-solar) absorption spectra and those found in mid-Victorian physical laborato-ries for ‘earth-bound’ elements shattered a long-standing cultural myth...

  12. Global asymptotic analysis of the Kelvin-Helmholtz instability of supersonic shear layers

    Microsoft Academic Search

    S. Roy Choudhury

    1990-01-01

    A global asymptotic analysis of the traveling wave Kelvin-Helmholtz instability of a supersonic finite-width velocity shear layer, having a linear velocity profile, is carried out. The structure of the resulting traveling wave solutions, comprising a composite Wilhelm-Kramers-Brillouin-Jeffreys and boundary-layer solution that satisfies outgoing spatially damping radiative wave boundary conditions, agrees closely with previously computed numerical results. The condition for the

  13. Otmar von Verschuer examines hair color of twin boys, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>taking the torchIn November 1942, Otmar von Verschuer succeeded Eugen Fischer as Director of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics. von Verschuer had been the Director of the Institute of Hereditary Biology and Race Biology at the University of Frankfurt, where he had become famous for his studies of genetic vs. environmental influences in twins. His assistant at the University of Frankfurt was Josef Mengele.

  14. Otmar von Verschuer examines twin boys, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>applying the solutionIn November 1942, Otmar von Verschuer succeeded Eugen Fischer as Director of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics. von Verschuer had been the Director of the Institute of Hereditary Biology and Race Biology at the University of Frankfurt, where he had become famous for his studies of genetic vs. environmental influences in twins. His assistant at the University of Frankfurt was Josef Mengele.

  15. Otmar von Verschuer performing lung volume tests, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>applying the solution In November 1942, Otmar von Verschuer succeeded Eugen Fischer as Director of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics. von Verschuer had been the Director of the Institute of Hereditary Biology and Race Biology at the University of Frankfurt, where he had become famous for his studies of genetic vs. environmental influences in twins. His assistant at the University of Frankfurt was Josef Mengele.

  16. Otmar von Verschuer collects fingerprints, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>applying the solutionIn November 1942, Otmar von Verschuer succeeded Eugen Fischer as Director of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics. von Verschuer had been the Director of the Institute of Hereditary Biology and Race Biology at the University of Frankfurt, where he had become famous for his studies of genetic vs. environmental influences in twins. His assistant at the University of Frankfurt was Josef Mengele.

  17. Otmar von Verschuer examines eye color of twin boys, still imageSite: DNA Interactive (www.dnai.org)

    NSDL National Science Digital Library

    2008-10-06

    DNAi location: Chronicle>In the Third Reich>taking the torchn November 1942, Otmar von Verschuer succeeded Eugen Fischer as Director of the Kaiser Wilhelm Institute of Anthropology, Human Genetics, and Eugenics. von Verschuer had been the Director of the Institute of Hereditary Biology and Race Biology at the University of Frankfurt, where he had become famous for his studies of genetic vs. environmental influences in twins. His assistant at the University of Frankfurt was Josef Mengele.

  18. European Roots of the First Psychology Clinic in North America

    Microsoft Academic Search

    Donald K. Routh; Victoria del Barrio

    1996-01-01

    Lightner Witmer (1867–1956) founded the first psychology clinic in Philadelphia 100 years ago, in March 1896. Even though he was an American, he readily acknowledged some European roots of his work. Witmer earned his Ph.D. at the University of Leipzig, Germany, under Wilhelm Wundt. He was encouraged by his Philadelphia mentor, James McKeen Cattell, to focus on individual differences in

  19. The Role of Folk Consciousness in the Modern State: Its Efficacy, Use and Abuse

    E-print Network

    Brown, Jim; Dregang, Ap

    ” diameter maple top – even using all the best horticultural practices – it probably won’t live and certainly won’t do well. On this analogy, would it make sense to cut off Germanic culture in 1789 and transplant onto it a French top? From... . The Grimms were not collecting folktales for children, but because the folktales contained bits and pieces of what Wilhelm, the more poetic of the two, called “the splintered jewel”– the fragmented ancient religion and culture. The first edition...

  20. The Enigma of Art: Phenomenology of Aesthetic Experience or Archaeology of the Work of Art?

    Microsoft Academic Search

    Arion L. Kelkel; Ellen K. Feder

    \\u000a In 1905 Wilhelm Dilthey published his famous Das Erlebnis and die Dichtung (Experience and Poetry) in which he tried to show the intrinsic link between lived experience and art, literature and poetry in particular. With\\u000a Goethe in mind, Dilthey saw poetry as the representation and expression of life. Art, he asserts, is thoroughly “Erlebniskunst” (art of experience).1 But what does

  1. A neutron scattering study of the crystal and magnetic structure of Sr2CrOsO6

    NASA Astrophysics Data System (ADS)

    Krockenberger, Y.; Reehuis, M.; Tovar, M.; Mogare, K.; Jansen, M.; Alff, L.

    2007-03-01

    Recently, the new osmium-based ferrimagnetic double perovskite Sr2CrOsO6 has been reported to have the highest Curie temperature (˜725 K) within this material class [Y. Krockenberger, K. Mogare, M. Reehuis, M. Tovar, M. Jansen, G. Vaitheeswaran, V. Kanchana, A. Delin, F. Wilhelm, A. Rogalev, A. Winkler, L. Alff, preprint, 2006]. Here, we report details about the crystal and magnetic structure of Sr2CrOsO6 as obtained by neutron powder diffraction.

  2. [Historical development of anthropology in Basel].

    PubMed

    Bay, R

    1986-12-01

    The author reports on the history of physical anthropology in Basel (Switzerland). The anthropological research activities of Carl Gustav Jung (1794-1864), Wilhelm His-Vischer (1831-1904), Ludwig Rütimeyer (1825-1895), Julius Kollmann (1834-1918), Paul and Fritz Sarasin (P.: 1856-1924; F.: 1859-1942), Felix Speiser (1880-1949) and the author himself (b. 1909) are described in detail. PMID:3548583

  3. Enzyme-assisted physicochemical enantioseparation processes—Part II: Solid–liquid equilibria, preferential crystallization, chromatography and racemization reaction

    Microsoft Academic Search

    Katerina Petruševska-Seebach; Kerstin Würges; Andreas Seidel-Morgenstern; Stephan Lütz; Martin P. Elsner

    2009-01-01

    This contribution addresses the design and investigation of two hybrid enantioseparation processes including an enzymatic racemization step in order to enhance the overall performance. Complementary to part I where the manufacturing and the characterization of an amino acid racemase (EC 5.1.1.10) was emphasized [Würges, K., Petrusevska, K., Serci, S., Wilhelm, S., Wandrey, C., Seidel-Morgenstern, A., Elsner, M.P., Lütz, S., 2009.

  4. The rise of guerrilla forces during the Franco-Prussian War of 1870-1871

    E-print Network

    Hatley, Paul Buchanan

    1988-01-01

    commanded and deploying as follows: Supreme Commander of the German Armies King Wilhelm I of Prussia Chief of the General Staff of the Army General of Infantry Helmuth von Moltke First Army Commander-in-Chief: General Karl Friedrich von Steinmetz... forces. Second Army Commander-in-Chief: Prince Friedrich Karl Chief of the General Staff: Major General Gustav von Stiehle 3rd Corps under Lt. General Konstantin von Alvensleben. 4th Corps under General Gustav von Alvensleben. 9th Corps under...

  5. Part 11, Authors: N To Ozzard

    E-print Network

    Segal, Dorothy B.; Ray, Doris H.; Hassall, Albert; Doss, Mildred A.

    1950-01-01

    ?t ????? ????????? ??? ?????????????? ??????????? ???????????-?). Varshav. Arte Med.?L'Arte Medica. Giornale Settimanale Illustrato. Napoli. Ber. Naturf. Gesellsch. Bamberg.?Bericht der Naturforschenden Gesellschaft zu Bamberg. Bam- berg. Biol. Untersuch.?Biologische Untersuchungen. Hrsg. von G. Retzius. Stockholm.... von der Biologischen Reischsanstalt und dem Deutschen Entomologischen Institut der Kaiser Wilhelm- Gesellschaft. Berlin-Dahlem. Eph?m. M?d. Montpellier.?Eph?m?rides M?dicales de Montpellier. Montpellier. Family Herald and Weekly Star...

  6. On the potential energy in a gravitationally bound two-body system

    NASA Astrophysics Data System (ADS)

    Wilhelm, Klaus; Dwivedi, Bhola N.

    2015-01-01

    The potential energy problem in a gravitationally bound two-body system is studied in the framework of a recently proposed impact model of gravity (Wilhelm et al., 2013). The concept of a closed system has been modified, before the physical processes resulting in the liberation of the potential energy can be described. The energy is extracted from the background flux of hypothetical interaction entities.

  7. History of the Oral and Maxillofacial Surgery Residency Program at Universidad el Bosque, Bogotá, Colombia.

    PubMed

    Castro-Núñez, Jaime

    2012-01-01

    The formal training of oral and maxillofacial surgeons in Colombia started in 1958 at Hospital Sanjos6, thanks to the titanic work of Waldemar Wilhelm, a German-born surgeon who settled in BogotA in 1950. Today there are seven institutions in Colombia that offer residency programs in oral and maxillofacial surgery. The aim of this article is to describe the history of the Oral and Maxillofacial Surgery Residency Program at Universidad El Bosque in Bogota. PMID:22916408

  8. Comments on the types and type localities of South African reptiles collected by Heinrich Bergius and Ludwig Krebs

    Microsoft Academic Search

    Aaron M. Bauer

    2000-01-01

    Karl Heinrich Bergius (1790–1818) and Georg Ludwig Engelhard Krebs (1792–1844) were German apothecaries living in South Africa who collected zoological material, including reptiles, for Martin Hinrich Carl Lichtenstein, director of the Zoological Museum of the Wilhelm-Friedrichs-Universität zu Berlin (ZMB). Although many of the specimens they sent to Berlin went unstudied, six species of reptiles described by Lichtenstein (1823), Wiegmann (1828,

  9. Molecular Structure of Citric Acid

    NSDL National Science Digital Library

    2002-08-13

    Citric Acid was first isolated in 1734 by Carl Wilhelm Scheele. Citric acid is found in many fruits, in particular lemons, grapefruit, and oranges. Several types of bacteria and fungi are also known to produce citric acid. In fact, the fungus Aspergillus niger produces the vast majority of citric acid, which is used in almost all carbonated sodas. Additionally, citric acid is also used to clean stainless steel.

  10. Ritter Discovers Ultraviolet

    NSDL National Science Digital Library

    In this activity, students perform a version of the experiment of 1801, in which ultraviolet light was first discovered by Johann Wilhelm Ritter. This experiment should be conducted outdoors on a sunny day - variable cloud conditions, such as patchy cumulus clouds or heavy haze will diminish your results. This activity requires advance preparation and special materials (e.g., glass prism, blueprint paper, household ammonia).

  11. The origin of pharmacopsychology: Emil Kraepelin’s experiments in Leipzig, Dorpat and Heidelberg (1882–1892)

    Microsoft Academic Search

    Ulrich Müller; Paul C. Fletcher; Holger Steinberg

    2006-01-01

    This historical review shows that the early history of cognitive psychopharmacology, originally labelled as “pharmacopsychology”,\\u000a is closely linked to developments in experimental psychology and academic psychiatry. At the beginning of his scientific career,\\u000a the German psychiatrist Emil Kraepelin (1856–1926) joined Wilhelm Wundt’s laboratory of experimental psychology at the University\\u000a of Leipzig. Although Kraepelin was fired from his clinical position at

  12. MOTIVATING FACTORS: IN-SCHOOL AND OUT-OF-SCHOOL LITERACY PRACTICES

    E-print Network

    Cohen, Stacy Elizabeth

    2011-09-21

    ; Wolters & Pintrich, 1998; Shell et al., 19995). Fewer studies, such as Smith and Wilhelm (2004) and Potter et al. (2001), have examined aspects of self-efficacy or value beliefs through qualitative approaches. This study seeks to extend the current... lack of effort rather than a lack of ability. Therefore, high levels of self-efficacy are related to students’ effort and task persistence (Linnenbrink & Pintrich, 2003). Attribution theory. Ability beliefs are also central tenets of attribution theory...

  13. Einleitung: Sigmund Freud – Leben und Werk

    Microsoft Academic Search

    Bernd Nitzschke

    \\u000a „Vom Jahre 1902 an scharte sich eine Anzahl jüngerer Ärzte um mich in der ausgesprochenen Absicht, die Psychoanalyse zu erlernen,\\u000a auszuüben und zu verbreiten. Ein Kollege [Wilhelm Stekel, s. unten – B. N.], welcher die gute Wirkung der analytischen Therapie\\u000a an sich selbst erfahren hatte, gab die Anregung dazu. Man kam an bestimmten Abenden in meiner Wohnung zusammen, diskutierte\\u000a nach

  14. A Review of "Leibniz. An Intellectual Biography" by Maria Rosa Antognazza

    E-print Network

    Wright, Jonathan

    2011-01-01

    . Persistence is everything, and, as this well-researched, sure-footed biography reveals, Gottfried Wilhelm Leibniz was nothing if not persistent. Craig Ashley Hanson. The English Virtuoso: Art, Medicine, and Antiquarianism in the Age of Empiricism... antiquarian, Dr. John Woodward of the Royal Society, but, as Craig Hanson points out, the play?s authors were by no means ?turning their backs on the classical past? (13). Pope translated the Iliad and the Odyssey. Gay, according to Hanson, ?worked...

  15. A Review of "The English Virtuoso: Art, Medicine, and Antiquarianism in the Age of Empiricism" by Craig Ashley Hanson

    E-print Network

    Fitzmaurice, James

    2011-01-01

    . Persistence is everything, and, as this well-researched, sure-footed biography reveals, Gottfried Wilhelm Leibniz was nothing if not persistent. Craig Ashley Hanson. The English Virtuoso: Art, Medicine, and Antiquarianism in the Age of Empiricism... antiquarian, Dr. John Woodward of the Royal Society, but, as Craig Hanson points out, the play?s authors were by no means ?turning their backs on the classical past? (13). Pope translated the Iliad and the Odyssey. Gay, according to Hanson, ?worked...

  16. A Review of "The English Virtuoso: Art, Medicine, and Antiquarianism in the Age of Empiricism" by Craig Ashley Hanson 

    E-print Network

    Fitzmaurice, James

    2011-01-01

    . Persistence is everything, and, as this well-researched, sure-footed biography reveals, Gottfried Wilhelm Leibniz was nothing if not persistent. Craig Ashley Hanson. The English Virtuoso: Art, Medicine, and Antiquarianism in the Age of Empiricism... the foibles of a group of people to whom one belongs. Sydenham wrote medical texts and was himself an es- tablished authority by virtue of print. Hanson is an art historian and the connection between art and medicine is foregrounded. Dr. Theodore...

  17. The first accurate description of an aurora

    NASA Astrophysics Data System (ADS)

    Schröder, Wilfried

    2006-12-01

    As technology has advanced, the scientific study of auroral phenomena has increased by leaps and bounds. A look back at the earliest descriptions of aurorae offers an interesting look into how medieval scholars viewed the subjects that we study.Although there are earlier fragmentary references in the literature, the first accurate description of the aurora borealis appears to be that published by the German Catholic scholar Konrad von Megenberg (1309-1374) in his book Das Buch der Natur (The Book of Nature). The book was written between 1349 and 1350.

  18. Clinical imprinting: the impact of early clinical learning on career long professional development in nursing.

    PubMed

    Andrew, Nicola

    2013-05-01

    The literature recognises a relationship between clinical experience and a successful undergraduate experience in nursing; however what constitutes an effective approach remains the subject of debate, particularly in relation to first year of learning. There is evidence from a biological standpoint that early experience impacts on the behavioural development of animals, described by Konrad Lorenz (1903-1989) as 'imprinting'. The concept of imprinting has resonance for nursing. In this article the importance of 'getting it right at the beginning' is explored and what, if anything, Lorenz's theory tells us about the impact of early clinical learning on subsequent professional development. PMID:22975293

  19. Differential inhibition of human atherosclerotic plaque-induced platelet activation by dimeric GPVI-Fc and anti-GPVI antibodies: functional and imaging studies

    E-print Network

    Jamasbi, Janina; Megens, Remco T. A.; Bianchini, Mariaelvy; Münch, Götz; Ungerer, Martin; Faussner, Alexander; Sherman, Shachar; Walker, Adam; Goyal, Pankaj; Jung, Stephanie; Brandl, Richard; Weber, Christian; Lorenz, Reinhard; Farndale, Richard; Elia, Natalie; Siess, Wolfgang

    2015-06-01

    , MD‡ Martin Ungerer, MD‡ Alexander Faussner, PhD* Shachar Sherman, BSc§ Adam Walker, PhD? Pankaj Goyal, PhD¶ Stephanie Jung, PhD# Richard Brandl, MD** Christian Weber, MD*††† Reinhard Lorenz, MD* Richard Farndale, PhD# Natalie Elia, PhD§ Wolfgang... antibodies against the collagen signalling receptor glycoprotein VI are inhibitors of collagen induced thrombus formation. Platelets 2009;20:268-76. 24. Massberg S, Konrad I, Bultmann A, et al. Soluble glycoprotein VI dimer inhibits platelet adhesion...

  20. eROSITA - Mapping the X-ray universe

    NASA Astrophysics Data System (ADS)

    Predehl, P.

    eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the core instrument on the Russian/German Spektrum-Roentgen-Gamma (SRG) mission which is currently scheduled for launch late 2015/early 2016. eROSITA will perform a deep survey of the entire X-ray sky. In the soft band (0.5-2 keV), it will be about 30 times more sensitive than ROSAT, while in the hard band (2-8 keV) it will provide the first ever true imaging survey of the sky. The design driving science is the detection of large samples of galaxy clusters to redshifts {z > 1} in order to study the large scale structure in the universe and test cosmological models including dark energy. In addition, eROSITA is expected to yield a sample of a few million active galactic nuclei, including obscured objects, revolutionizing our view of the evolution of supermassive black holes. The survey will also provide new insights into a wide range of astrophysical phenomena, including X-ray binaries, active stars, and diffuse emission within the Galaxy. eROSITA is currently (Jan 2014) in its flight model and calibration phase. All seven flight mirror modules (plus one spare) have been delivered and measured in X-rays. The first camera including the complete electronics has been extensively tested. So far, all subsystems and components are well within the expected performance.

  1. Radiation epidemiology: Past and present

    SciTech Connect

    Boice, J.D. Jr. [International Epidemiology Institute, Rockville, MD (United States)

    1997-03-01

    Major advancements in radiation epidemiology have occurred during the last several years in studies of atomic bomb survivors, patients given medical radiation, and radiation workers, including underground miners. Risks associated with the Chernobyl accident, indoor radon and childhood exposure to I-131 have yet to be elucidated. Situations in the former Soviet Union around Chelyabinsk, a nuclear installation in the southern Urals, and in the Altai, which received radioactive fallout from weapons testing at Semipalatinsk, Kazakhstan, have the potential to provide information on the effects of chronic radiation exposure. Since Roentgen`s discovery of x-rays just 100 years ago, a tremendous amount of knowledge has been accumulated about human health effects following irradiation. The 1994 UNSCEAR report contains the latest compilation and synthesis of radiation epidemiology. This overview will cover epidemiology from a radiation perspective. The different types of study methodologies will be described, followed by a kaleidoscope coverage of past and present studies; ending with some remaining questions in radiation epidemiology. This should set the stage for future chapters, and stimulate thinking about implications of the new data on radiation cancer risks.

  2. New Perspectives in the German Final Disposal Program

    SciTech Connect

    Thomauske, B.R. [Managing Director, Vattenfall Europe Nuclear Energy GmbH, Hamburg (Germany)

    2007-07-01

    In Germany the Federal Government is responsible for the final disposal of radioactive waste. There is an actual need for a repository for wastes with negligible heat generation (low and intermediate level wastes). The former iron ore mine Konrad, licensed for this type of waste in 2002, could solve this problem and start operation about 2010. A repository for high active heat generating waste is needed by 2030. The Federal Ministry for the Environment, Nature Conservation and Nuclear Safety has decided, however, to interrupt the exploration of the Gorleben salt dome and to restart an alternative site selection procedure from the very beginning. Following this procedure, it will not be possible to have a repository in operation before 2050. In order to solve the question of final disposal in Germany it is necessary to start the construction of the Konrad repository and to continue the underground exploration of the Gorleben salt dome immediately. An alternative site selection procedure would postpone the start of final disposal by decades and lead to additional costs amounting to billions of euros. It would not be possible to have a repository for high-level radioactive waste in operation by 2030 and the task to solve the waste management issue would be shifted to future generations. (authors)

  3. Part 15, Authors: Si To Szyszkowski 

    E-print Network

    Humphrey, Judith M.; Hassall, Albert; Doss, Mildred A.

    1951-01-01

    ?, W?.] SICK, CONRAD WILHELM OTTO. [1876- ] [Approb. Arzt, Stuttgart, K. W?rttemberg.] 1901 a.?Ueber Spulw?rmer in den Gallenwegen. Diss. 34 pp. T?bingen. [Wm.] SICKLER, MARGARET M. [A.B., Dept. Med., G. W. Univ. School Med., Washington, D.... ?.] See Schapiro, Mark M.; Crosby, Benjamin L.; and Sickler, Margaret M. SICKM?LLER, EMIL. [Dr., W?rtt. Tier?rztl. Lande- suntersuchungsamt, Stuttgart] (1923 a).?Ueber die Infektionsverh?ltnisse bei dem Wasserfroschkozzid Isospora lieberk?hni und die...

  4. [The medical staff of the Austro-Hungarian Navy in World War I].

    PubMed

    Kiss, Gábor

    2008-01-01

    The development of the Imperial and Royal Navy of the Austro-Hungarian Empire begun in 1868 being based on the structure established by Admiral Wilhelm Tegetthoff. The number of staff-doctors of the Navy did not prove enough for the needed sanitary measures. The permanent lack of doctors however was compensated by the expertise of the medical staff During the WWI, three land hospitals and one hospital-ship operated in addition to the doctors working on the single units of the fleet In spite of the constant problems, caused by the lack of trained doctors the health service of the Imperial and Royal Navy proved to be sufficient. PMID:19580124

  5. Production of Penicillic Acid and Ochratoxin A on Poultry Feed by Aspergillus ochraceus: Temperature and Moisture Requirements

    PubMed Central

    Bacon, C. W.; Sweeney, J. G.; Robbins, J. D.; Burdick, D.

    1973-01-01

    A strain of Aspergillus ochraceus Wilhelm, isolated from poultry feed, produced both penicillic acid and ochratoxin A. Studies demonstrating the ability of this fungus to colonize poultry feed and produce these two mycotoxins under various temperatures and moistures indicated that the interaction was complex. The optimal temperature for conidial development did not vary with moisture, but accumulation of both toxins did. A combination of low temperature, 15 or 22 C, and low moisture favored the production of penicillic acid, whereas high temperature, 30 C, and high moisture favored the production of ochratoxin A. PMID:4795527

  6. [P3 Se4 ](+) : A Binary Phosphorus Selenium Cation.

    PubMed

    Feldmann, K-O; Wiegand, T; Ren, J; Eckert, H; Breternitz, J; Groh, M F; Müller, U; Ruck, M; Maryasin, B; Ochsenfeld, C; Schön, O; Karaghiosoff, K; Weigand, J J

    2015-06-26

    Highlighted on the cover of this issue is a collaboration between the groups of Jan Weigand and Michael Ruck at TU Dresden, Hellmut Eckert and Thomas Wiegand at Westfälische Wilhelms-University Münster, and Christian Ochsenfeld and Konstantin Karaghiosoff at Ludwig Maximilians University Munich (all Germany), who teamed up to uncover the novel selenium cation, [P3 Se4 ](+) . Three distinct syntheses and detailed information on its structural, electronic and dynamic properties resulted from the combination of the groups' different perspectives (cover design by Dr. Kai-Oliver Feldmann from the Weigand group). Read the full text of the article at 10.1002/chem.201406476. PMID:25872499

  7. The onset of labour: an alternative theory.

    PubMed

    Jones, P

    1996-02-01

    This article, based mainly on the theories and discoveries of Wilhelm Reich (1897-1957), puts forward the bio-energetic theory of the onset of labour, which assumes it to be one of many examples of bio-energetic pulsation in the organism. It suggests that chronic muscular tension ('armouring') interferes with this spontaneous pulsation and may account for many of the difficulties experienced by women in labour. A form of psychotherapy ('orgone-therapy') based on these theories may prove helpful in childbirth education, in the non-intrusive induction of labour, and in labour itself. A research project to test this hypothesis is suggested. PMID:9439268

  8. On first looking into auriculo-ventricular asynchrony.

    PubMed

    Breathnach, Caoimhghín S; Moynihan, John B

    2010-05-01

    Walter Gaskell's demonstration in 1882 that it was possible to block the passage of contraction from auricle to ventricle in the frog heart by means of a clamp spurred Joseph Erlanger (1906) to prevent, by similar means, impulse conduction through the bundle of (Wilhelm) His jun. (1893) in the mammalian heart. With a miniaturized polygraph to record the jugular and arterial pulsation, James Mackenzie (1902) displayed various grades of heart block in the human heart. His results were confirmed by Thomas Lewis using Willem Einthoven's (1903) ECG in 1911. But without instrumental help, Robert Spittal (1804-1852) recounted a case of reversible auriculo-ventricular block in 1830. PMID:20180919

  9. Supplement 19, Part 1, Authors: A To Z

    E-print Network

    Segal, Dorothy B.; Humphrey, Judith M.; Edwards, Shirley J.; Kirby, Margie D.; Walker, Martha L.; Rayburn, Jane D.; Crawley, Lila R.; Podani, Jule M.

    1974-01-01

    ?ge zur Systematik und Oekologie Mitteleuro- p?ischer Acarina. Herausgegeben von Hans-J?rgen Stammer. Aus dem Zoologischen Institut der Friedrich-Alexander- Universit?t, Erlangen. Leipzig. [Dac.(QLA58 A2 ??)] Bibliotheca Haematologica N0. 30 [Also given...?ttiirufraedi. Reykjavik. [Wa.(410 N214^] Nature, London, N. Biol.? Nature. New Biology. London. [w3?. (QH301.N33) ] Naturg. Vogel (Berndt, R.; and Meise, W.).? Naturgeschich- te der V?gel, von Rudolf Berndt und Dr. Wilhelm Meise. [W .(QL 673.N3)] Natuurwetensch...

  10. LSWAVE 2000: Lasers and short-wavelength applications

    NASA Astrophysics Data System (ADS)

    Sandner, W.

    2001-07-01

    LSWAVE 2000 was organized as a Satellite Workshop to the Seventh International Conference on Synchrotron Radiation Instrumentation SRI 2000. It was held on Saturday, August 26, 2000, at the Technische Universität Berlin, and was jointly organized by the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) and the Technical University Berlin (TUB). The organizing committee consisted of Wilhelm Raith (chairman), Wolfgang Sandner, Ingolf Hertel, Manfred Wick, Bernd Winter, Tatjana Gießel, Holger Stiel, Ingo Will, Ursula Bayr (secretary) and Silvia Szlapka (secretary). Continuing information on the Workshop and its proceedings may be found under http://www.mbi-berlin.de/lswave2000/.

  11. Astro-Dynasty

    NASA Astrophysics Data System (ADS)

    Belkora, Leila

    2001-05-01

    Four generations of Struves directed eight observatories over two centuries. The first, Wilhelm Struve moved to Estonia from northern Germany to escape Napoleon's military conscription. He pursued university studies and ended up running an observatory for 20 years. Raising his family at the observatory in isolated conditions encouraged his offspring to follow his career path. The last, Otto Struve, was the first director of McDonald Observatory. The Struves were winners of several Gold Medals from Britain's Royal Astronomical Society for their research.

  12. Position-specific behaviors and their impact on crew performance: Implications for training

    NASA Technical Reports Server (NTRS)

    Law, J. Randolph

    1993-01-01

    The present study was motivated by results from a preliminary report documenting the impact of specific crewmembers on overall crew performance (Wilhelm & Law, 1992), and a cross-airline cross-fleet project investigating human factors behaviors of commercial aviation flightcrews (Helmreich, Butler, Whilhelm, & Lofaro, 1992). The purpose of the current investigation is to study how position-specific behaviors impact flightcrew performance, and how these position-specific behaviors differ between two airlines and two flying environments. Implications for training will also be addressed.

  13. Three new species of Kerevata (Braconidae: Rogadinae: Clinocentrini) from mainland Papua New Guinea.

    PubMed

    Butcher, Buntika Areekul; Quicke, Donald L J

    2014-01-01

    Three new species of the distinctive, cyclostome, braconid wasp genus Kerevata (viz. Kerevata jamesmayi sp. nov., K. clarksoni sp. nov. and K. hammondi sp. nov.) from Mt Wilhelm, Madang Province, Papua New Guinea are described and illustrated, and a key provided to enable their identification and separation from the only other species described to date, K. pacifica, from New Britain in the Bismark Archipelago off the S. E. coast of New Guinea. Characters used to differentiate Kerevata from the related Confusocentrus are modified. PMID:24943171

  14. [The Malady of Emperor Frederick III. and Virchow's diagnostic role].

    PubMed

    Sedivy, Roland

    2015-04-01

    Crownprince Frederick Wilhelm of Prussia was once the hope of the liberal movement in Germany. He embodied and lived a humanistic ideal based on the spirit of the enlightenment. Starting in January 1887 the passionate pipe smoker suffered on an unusual long hoarseness. A polyp of the vocal cord was diagnosed. Although this diagnosis seemed harmless, an odyssee was launched that made history. Rudolf Virchow-the foremost pathologist of that time-was involved in the following histological diagnosis. His role and that of the sprouting histopathology will be presented in this essay. PMID:25925224

  15. Christoph Rothmann and the dispersal of the celestial spheres. The letters to the Landgrave of Hessen-Kassel of 1585. (German Title: Christoph Rothmann und die Auflösung der himmlischen Sphären)

    NASA Astrophysics Data System (ADS)

    Granada, Miguel A.

    Prepared by the new star of 1572 and the comet of 1577, the comet of 1585 led to the explicit and definitive elimination of the concept of the solid heavenly spheres. On the basis of precise observations of the comet, Christoph Rothmann in Kassel developed the concept of a fluid heaven consisting of pure air. This combination of experience and theory, together with his Copernicanism, illustrates Rothmann's importance in the history of cosmology. An appendix contains five previously unpublished letters from Rothmann to the landgrave Wilhelm IV on the subject of the comet, and also the imperial privilege granted to Rothmann to publish several astronomical studies.

  16. Subhas Chandra Bose: darling of the Axis 

    E-print Network

    Getz, Marshall Jay

    1993-01-01

    Awareness. Bengali Politics: Swadeshi From Swadeshi To A National Character Increased Militancy And Revolutionary Violence 22 14 20 22 27 33 III THIEVES, SPIES AND SABOTEURS: THE FRIENDS OF WILHELM II 36 Indians In World War I: The Berlin... Bose's Memorandum Of Interest To The Nazis Difficult Days In Berlin 110 118 132 CHAPTER The Voice Of Indian Fascism The Fauj End Of A Dream Page 137 150 164 Volume II TABLE OF CONTENTS VI DARLING OF THE AXIS ill 169 Japan: The Tiny...

  17. Veterinary Anatomical Illustrations

    NSDL National Science Digital Library

    These remarkable illustrations were taken from the classic works of German veterinary anatomists, Wilhelm Ellenberger and Hermann Baum, along with medical illustrator, Hermann Dittrich. Originally published in texts from 1898 and 1911 through 1925, these works remain seminal for those studying various animals today. Animals covered here include the horse, cow, dog, lion, goat, and deer. Crafted as part of the University of Wisconsin Digital Collections initiative, these works will be of special interest to veterinarians, anatomists, comparative anatomists, and anyone else with an interest in the musculoskeletal systems of animals. All told there are eighty plates here, rendered in exquisite detail.

  18. Correspondence between Tycho Brahe and Thaddeus Hagecius - the beginnings. (German Title: Briefwechsel zwischen Tycho Brahe und Thaddaeus Hagecius - Anfänge)

    NASA Astrophysics Data System (ADS)

    Smolka, Josef

    The voluminous correspondence of Tycho is one of the most interesting sources of the history of astronomy. Nevertheless, it is until today poorly known and rarely cited (Thoren being a counter-example), and a modern critical edition is lacking. Among Tycho Brahe's most frequent correspondents are Wilhelm, the landgrave of Hesse, and his court astronomer Ch. Rothmann. At third place - regarding the number of letters - we find the court physician and astronomer Thaddaeus Hagecius from Prague. Their correspondence lasted from 1575 tpo 1597. This article presents and analyses the most important letters of the Hagecius - Brahe correspondence.

  19. Recent notes on Tycho Brahe's library

    NASA Astrophysics Data System (ADS)

    Gingerich, Owen

    Wilhelm Norlind lists 216 books presumed to have been in Tycho's library, but the actual count must have been much higher. The largest block of surviving books are in the Clementinum in Prague, just over 50 volumes but nearly 100 titles. Tycho tried to acquire books in many ways, and particularly by buying the library of Paul Wittich after the death of this one-time visitor to Hven. This talk will also describe two annotated volumes from Tycho's library that have recently come onto the antiquarian market: Apianus' Astronomicum Caesareum (Ingolstadt, 1540) and Cornelius Gemma's De naturae divinis characterismis (Antwerp, 1575).

  20. An intelligent ground operator support system

    NASA Technical Reports Server (NTRS)

    Goerlach, Thomas; Ohlendorf, Gerhard; Plassmeier, Frank; Bruege, Uwe

    1994-01-01

    This paper presents first results of the project 'Technologien fuer die intelligente Kontrolle von Raumfahrzeugen' (TIKON). The TIKON objective was the demonstration of feasibility and profit of the application of artificial intelligence in the space business. For that purpose a prototype system has been developed and implemented for the operation support of the Roentgen Satellite (ROSAT), a scientific spacecraft designed to perform the first all-sky survey with a high-resolution X-ray telescope and to investigate the emission of specific celestial sources. The prototype integrates a scheduler and a diagnosis tool both based on artificial intelligence techniques. The user interface is menu driven and provides synoptic displays for the visualization of the system status. The prototype has been used and tested in parallel to an already existing operational system.

  1. X-Ray Phase-Contrast Imaging with Three 2D Gratings

    PubMed Central

    Jiang, Ming; Wyatt, Christopher Lee; Wang, Ge

    2008-01-01

    X-ray imaging is of paramount importance for clinical and preclinical imaging but it is fundamentally restricted by the attenuation-based contrast mechanism, which has remained essentially the same since Roentgen's discovery a century ago. Recently, based on the Talbot effect, groundbreaking work was reported using 1D gratings for X-ray phase-contrast imaging with a hospital-grade X-ray tube instead of a synchrotron or microfocused source. In this paper, we report an extension using 2D gratings that reduces the imaging time and increases the accuracy and robustness of phase retrieval compared to current grating-based phase-contrast techniques. Feasibility is demonstrated via numerical simulation. PMID:18401460

  2. Screen film processing systems for medical radiography: a historical review.

    PubMed

    Haus, A G; Cullinan, J E

    1989-11-01

    Since Roentgen first experimented with radiation to produce a radiographic image, many milestones have been reached in the design and manufacture of intensifying screens, medical x-ray films, film processors and chemicals. As a result, high-quality medical radiographs are obtainable today at very low radiation dose. This progress is the result of major contributions and the collaborative efforts of many individuals in industries, universities, and medical institutions involved in basic research, development and manufacturing. This article highlights some of the major advances in the evolution of screen-film-processor chemical systems for medical radiography. Photographs, radiographs, and scientific data are included which illustrate some of the major achievements. PMID:2685941

  3. Development of Mirror Modules for the ART-XC Instrument

    NASA Technical Reports Server (NTRS)

    Gubarev, M.; Ramsey, B.; O'Dell, S. L.; Elsner, R.; Kilaru, K.; McCracken, J.; Pavlinsky, M.; Lapshov, I.

    2012-01-01

    The Marshall Space Flight Center (MSFC) is developing x-ray mirror modules for the ART -XC instrument on board the Spectrum-Roentgen-Gamma Mission under a Reimbursable Agreement between NASA and the Russian Space Research Institute (IKI.) ART-XC will consist of seven co-aligned x-ray mirror modules with seven corresponding CdTe focal plane detectors. Currently, four of the modules are being fabricated by the Marshall Space Flight Center (MSFC.) Each MSFC module provides an effective area of 65 cm2 at 8 keV, response out to 30 keV, and an angular resolution of 45 arcsec or better HPD. We will present a status of the ART x-ray module development at MSFC.

  4. Double trouble: a tale of two radio-treatments.

    PubMed

    Ogbonnaya, Ebere Sunny; Peev, Nikolay; Nagaraja, Sanjoy; Dardis, Ronan

    2014-01-01

    In recent years, an increasing number of patients are treated with radiation. In the early era of radiotherapy, which began soon after X-rays were discovered by Roentgen in 1895, tumours were irradiated with high doses of X-rays in a single fraction. The major initial setback was the damage caused to normal tissues; however, in recent times the use of stereotactic radiosurgery, which delivers high doses of radiation precisely to abnormal tissue targets while sparing the surrounding normal brain tissue, and particularly for surgically inaccessible tumours, has taken centre stage. Prophylactic whole brain radiation (in conjunction with aggressive chemotherapy) for childhood acute lymphoblastic leukaemia has been shown to improve patient survival, however, this is associated with complications in survivors. We report an interesting case of one of the longest survivors who has had double complications from radiotherapy-based interventions. PMID:25239997

  5. Face height and tooth eruption in adults--a 20-year follow-up investigation.

    PubMed

    Forsberg, C M; Eliasson, S; Westergren, H

    1991-08-01

    A longitudinal roentgen cephalometric investigation of vertical craniofacial and dentoalveolar changes during 20 years of adulthood, was performed in 15 men and 15 women. Two lateral cephalograms taken at the average ages 25 and 45 years, were available of each subject. Skeletal and dental changes were described by 13 linear and four angular cephalometric measurements. The analysis of the linear variables showed that total anterior face height increased by 1.60 mm on average. Approximately one-fifth of this increase occurred in the upper and four-fifths in the lower face. In the dentoalveolar region, significant increments of all dimensions except overjet and overbite were found, indicating an eruptive movement of the teeth and a vertical development of their investing tissues. The analysis of the angular measurements showed that posterior rotation of the mandible and uprighting of the upper incisors had occurred during the period of investigation. PMID:1915613

  6. New horizons for study of the cardiopulmonary and circulatory systems. [image reconstruction techniques

    NASA Technical Reports Server (NTRS)

    Wood, E. H.

    1976-01-01

    The paper discusses the development of computer-controlled three-dimensional reconstruction techniques designed to determine the dynamic changes in the true shape and dimensions of the epi- and endocardial surfaces of the heart, along with variable time base (stop-action to real-time) displays of the transmural distribution of the coronary microcirculation and the three-dimensional anatomy of the macrovasculature in all regions of the body throughout individual cardiac and/or respiratory cycles. A technique for reconstructing a cross section of the heart from multiplanar videoroentgenograms is outlined. The capability of high spatial and high temporal resolution scanning videodensitometry makes possible measurement of the appearance, mean transit and clearance of roentgen opaque substances in three-dimensional space through the myocardium with a degree of simultaneous anatomic and temporal resolution not obtainable by current isotope techniques. The distribution of a variety of selected chemical elements or biologic materials within a body portion can also be determined.

  7. Lymphoid cell kinetics under continuous low dose-rate gamma irradiation: A comparison study

    NASA Technical Reports Server (NTRS)

    Foster, B. R.

    1975-01-01

    A comparison study was conducted of the effects of continuous low dose-rate gamma irradiation on cell population kinetics of lymphoid tissue (white pulp) of the mouse spleen with findings as they relate to the mouse thymus. Experimental techniques employed included autoradiography and specific labeling with tritiated thymidine (TdR-(h-3)). The problem studied involved the mechanism of cell proliferation of lymphoid tissue of the mouse spleen and thymus under the stress of continuous irradiation at a dose rate of 10 roentgens (R) per day for 105 days (15 weeks). The aim was to determine whether or not a steady state or near-steady state of cell population could be established for this period of time, and what compensatory mechanisms of cell population were involved.

  8. Biomedical technology transfer. Applications of NASA science and technology

    NASA Technical Reports Server (NTRS)

    Harrison, D. C.

    1980-01-01

    Ongoing projects described address: (1) intracranial pressure monitoring; (2) versatile portable speech prosthesis; (3) cardiovascular magnetic measurements; (4) improved EMG biotelemetry for pediatrics; (5) ultrasonic kidney stone disintegration; (6) pediatric roentgen densitometry; (7) X-ray spatial frequency multiplexing; (8) mechanical impedance determination of bone strength; (9) visual-to-tactile mobility aid for the blind; (10) Purkinje image eyetracker and stabilized photocoalqulator; (11) neurological applications of NASA-SRI eyetracker; (12) ICU synthesized speech alarm; (13) NANOPHOR: microelectrophoresis instrument; (14) WRISTCOM: tactile communication system for the deaf-blind; (15) medical applications of NASA liquid-circulating garments; and (16) hip prosthesis with biotelemetry. Potential transfer projects include a person-portable versatile speech prosthesis, a critical care transport sytem, a clinical information system for cardiology, a programmable biofeedback orthosis for scoliosis a pediatric long-bone reconstruction, and spinal immobilization apparatus.

  9. X-ray emission from the historical supernovae in the spiral galaxy NGC 6946: SN 1980K and SN 1968D recovered ?

    NASA Technical Reports Server (NTRS)

    Schlegel, Eric M.

    1994-01-01

    This paper describes a study of the Roentgen Satellite (ROSAT) Position Sensitive Proportional Counter (PSPC) observation of the spiral galaxy NGC 6946 to search for x-ray emission from the six historical supernovae that have occurred in that galaxy. At the age of these supernovae, all could be emitting x rays due to circumstellar interactions. Supernova (SN) 1980K may be present based upon the hardness ratio and the coincidence of an x-ray source with the optical position. Its luminosity agrees with a recent prediction by Chevalier & Fransson. The situation for SN 1968D, apparently recovered in Very Large Array (VLA) data, is less clear due to source confusion, but suggests SN 1968D has not been recovered. Only upper limits are available for the remaining four supernovae that have occurred in this galaxy.

  10. Casimir-Polder forces on moving atoms

    SciTech Connect

    Scheel, Stefan; Buhmann, Stefan Yoshi [Quantum Optics and Laser Science, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ (United Kingdom)

    2009-10-15

    Polarizable atoms and molecules experience the Casimir-Polder force near magnetoelectric bodies, a force that is induced by quantum fluctuations of the electromagnetic field and the matter. Atoms and molecules in relative motion to a magnetoelectric surface experience an additional velocity-dependent force. We present a full quantum-mechanical treatment of this force and identify a generalized Doppler effect, the time delay between photon emission and reabsorption, and the Roentgen interaction as its three sources. For ground-state atoms, the force is very small and always decelerating, hence commonly known as quantum friction. For atoms and molecules in electronically excited states, on the contrary, both decelerating and accelerating forces can occur depending on the magnitude of the atomic transition frequency relative to the surface-plasmon frequency.

  11. What can be Learned from X-Ray Spectroscopy Concerning Hot Gas in the Local Bubble and Charge Exchange Processes

    NASA Technical Reports Server (NTRS)

    Snowden, Steven L.

    2007-01-01

    Solar wind charge exchange produces diffuse X-ray emission with a variable surface brightness comparable to that of the cosmic background. While the temporal variation of the charge exchange emission allows some separation of the components, there remains a great deal of uncertainty as to the zero level of both. Because the production mechanisms of the two components are considerably different, their spectra would provide critical diagnostics to the understanding of both. However, current X-ray observatories are very limited in both spectral resolution and sensitivity in the critical soft X-ray (less than 1.0 keV) energy range. Non-dispersive high-resolution spectrometers, such as the calorimeter proposed for the Spectrum Roentgen Gamma mission, will be extremely useful in distinguishing the cascade emission of charge exchange from the spectra of thermal bremsstrahlung cosmic plasmas.

  12. eROSITA on SRG

    NASA Astrophysics Data System (ADS)

    Predehl, Peter; Andritschke, Robert; Becker, Werner; Bornemann, Walter; Bräuninger, Heinrich; Brunner, Hermann; Boller, Thomas; Burwitz, Vadim; Burkert, Wolfgang; Clerc, Nicolas; Churazov, Evgeniy; Coutinho, Diogo; Dennerl, Konrad; Eder, Josef; Emberger, Valentin; Eraerds, Tanja; Freyberg, Michael J.; Friedrich, Peter; Fürmetz, Maria; Georgakakis, Antonis; Grossberger, Christoph; Haberl, Frank; Hälker, Olaf; Hartner, Gisela; Hasinger, Günther; Hoelzl, Johannes; Huber, Heinrich; von Kienlin, Andreas; Kink, Walter; Kreykenbohm, Ingo; Lamer, Georg; Lomakin, Ilya; Lapchov, Igor; Lovisari, Lorenzo; Meidinger, Norbert; Merloni, Andrea; Mican, Benjamin; Mohr, Joseph; Müller, Siegfried; Nandra, Kirpal; Pacaud, Florian; Pavlinsky, Mikhail N.; Perinati, Emanuele; Pfeffermann, Elmar; Pietschner, Daniel; Reiffers, Jonas; Reiprich, Thomas; Robrade, Jan; Salvato, Mara; Santangelo, Andrea E.; Sasaki, Manami; Scheuerle, Hartmut; Schmid, Christian; Schmitt, Jürgen; Schwope, Axel D.; Sunyaev, Rashid; Tenzer, Christoph; Tiedemann, Lars; Xu, Weizong; Yaroshenko, Valeri; Walther, Sabine; Wille, Michael; Wilms, Jörn; Zhang, Yu-Ying

    2014-07-01

    eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the core instrument on the Russian/German Spektrum-Roentgen-Gamma (SRG) mission which is now officially scheduled for launch on March 26, 2016. eROSITA will perform a deep survey of the entire X-ray sky. In the soft band (0.5-2 keV), it will be about 30 times more sensitive than ROSAT, while in the hard band (2-8 keV) it will provide the first ever true imaging survey of the sky. The design driving science is the detection of large samples of galaxy clusters to redshifts z < 1 in order to study the large scale structure in the universe and test cosmological models including Dark Energy. In addition, eROSITA is expected to yield a sample of a few million AGN, including obscured objects, revolutionizing our view of the evolution of supermassive black holes. The survey will also provide new insights into a wide range of astrophysical phenomena, including X-ray binaries, active stars and diffuse emission within the Galaxy. eROSITA is currently (June 2014) in its flight model and calibration phase. All seven flight mirror modules (+ 1 spare) have been delivered and measured in X-rays. The first camera including the complete electronics has been extensively tested (vacuum + X-rays). A pre-test of the final end-toend test has been performed already. So far, all subsystems and components are well within their expected performances.

  13. Characterizing potential exposure to the public from low-level radioactive waste transportation by truck.

    PubMed

    Miller, Julianne J; Shafer, David S; Gray, Karen J; Church, Bruce W; Tappen, Jeffrey J; Campbell, Scott A; Holz, Barbara A

    2007-12-01

    To address public concern about potential exposure to gamma radiation from legal-weight low-level radioactive waste truck shipments to the Nevada Test Site, a stationary, automated array of four pressurized ion chambers was established for trucks to pass through. Data were collected from 1,012 of the 2,260 trucks that transported low-level radioactive waste to the Nevada Test Site from February through December 2003. To avoid perception of biasing a potential exposure low, the maximum reading (muR per hour; muR h(-1)) from the array was assigned as the gross measurement value for each truck. [In this article, exposure measurements are reported as Roentgen (R), as this unit is consistent with the data readings of the measurement instruments and has been historically presented to public stakeholders. Subsequently, dose measurements are reported as Roentgen Equivalent Man (rem).] To calculate the "net exposure" for each truck, the average and standard deviation of the maximum background values during the corresponding 12-h period when the truck arrived were subtracted from the gross value. For 483 trucks (47.7%), calculated net exposure values were equal to or less than zero, indicating that the exposure from the truck was indistinguishable from background. An additional 206 trucks (20.4%) had calculated net exposure values ranging between 0.0 and 1.0 muR h(-1). Cumulative exposure scenarios appropriate for rural transportation routes to the Nevada Test Site were developed; however, these scenarios assumed the unlikely case that the same individual was exposed to all of the trucks on that route. Cumulative exposure values were dominated by a small percentage of the trucks with comparatively high values. In communities along transportation routes, the probability of an individual receiving a potential exposure from a single truck may be a more meaningful perspective. PMID:17993845

  14. Delayed effects of external radiation exposure: A brief history

    SciTech Connect

    Miller, R.W. [National Cancer Institute, Bethesda, MD (United States)

    1995-11-01

    Within months of Roentgen`s discovery of X rays, severe adverse effects were reported, but not well publicized. As a result, over the next two decades, fluoroscope operators suffered lethal skin carcinomas. Later, case reports appeared concerning leukemia in radiation workers, and infants born with severe mental retardation after their mothers had been given pelvic radiotherapy early in pregnancy. Fluoroscopy and radiotherapy for benign disorders continued to be used with abandon until authoritative reports were published on the adverse effects of ionizing radiation by the U.S. NAS-NRC and the UK MRC in 1956. Meanwhile, exposure to the atomic bombs in Japan had occurred and epidemics of delayed effects began to be recognized among the survivors: cataracts, leukemia and severe mental retardation among newborn infants after intra-uterine exposure. No statistically significant excess of germ-cell genetic effects was detected by six clinical measurements, the F{sub 1} mortality, cytogenetic studies or biochemical genetic studies. Somatic cell effects were revealed by long-lasting chromosomal aberrations in peripheral lymphocytes, and somatic cell mutations were found at the glycophorin A locus in erythrocytes. Molecular biology is a likely focus of new studies based on the function of the gene for ataxia telangiectasia, a disorder in which children have severe, even lethal acute radiation reactions when given conventional doses of radiotherapy for lymphoma, to which they are prone. The tumor registries in Hiroshima and Nagasaki now provide incidence data that show the extent of increases in eight common cancers and no increase in eight others. The possibility of very late effects of A-bomb exposure is suggested by recent reports of increased frequencies of hyperparathyroidism, parathyroid cancers and certain causes of death other than cancer. 88 refs., 1 fig.

  15. Assessing the Quality of Water Vapor Radiometer Data from Onsala during the CONT11 Geodetic VLBI Campaign

    NASA Astrophysics Data System (ADS)

    Elgered, G.; Haas, R.; Wahlbom, J.; Ning, T.

    2012-12-01

    Two water vapor radiometers (WVRs), called Astrid and Konrad, were operated during the CONT11 campaign at the Onsala Space Observatory. A well known feature of WVRs is that their algorithm breaks down when there are large drops of water, affecting the observations. Without any independent information one has to rely on the WVR data themselves to detect rain and remove the corresponding low quality results. In order to assess this technique we operated different types of rain sensors during CONT11: a zenith looking Doppler rain radar, three optical sensors, and three capacitive sensors. The first 8.25 days had frequent rain events whereas the last 7.75 days were significantly drier. We summarized the data set acquired by the WVRs and the rain detectors. The inferred time series of the equivalent zenith wet delay (ZWD) and linear horizontal gradients are compared to the corresponding estimates from GPS data (acquired at the IGS station ONSA) and the VLBI data themselves.

  16. Structure and Dynamics of the Quiet Solar Chromosphere

    NASA Technical Reports Server (NTRS)

    Kalkofen, Wolfgang; Wagner, William (Technical Monitor)

    2003-01-01

    For the meeting of the AAS/SPD in Albuquerque, NM, I organized a Topical Session of the AAS on Structure and Dynamics of Chromospheres. The grant support was used to bring to the US two of the speakers from abroad. I had invited them for presentations at the Session: Dr. Klaus Wilhelm, the former PI of the SUMER instrument on SOHO, from the Max-Planck Institut in Lindau, Germany, and Dr. Sirajul Hasan, from the Indian Institute of Astrophysics in Bangalore, India. Both speakers preceded their trip to the AAS meeting with a stay at the Smithsonian Astrophysical Observatory, where they interacted with members of the Solar and Stellar Physics division. The highlights of the visits were the talks at the AAS/SPD meeting, in which six invited speakers told the audience of astronomers about current problems in solar physics and their relation to stellar problems. An important result of the visits is a paper by Dr. Wilhelm and me on 'Observations of the upper solar chromosphere with SUMER on SOHO', which has been submitted to Astronomy and Astrophysics for publication.

  17. Dilemmas of 19th-century Liberalism among German Academic Chemists: Shaping a National Science Policy from Hofmann to Fischer, 1865-1919.

    PubMed

    Johnson, Jeffrey Allan

    2015-04-01

    This paper's primary goal is to compare the personalities, values, and influence of August Wilhelm Hofmann and Emil Fischer as exemplars and acknowledged leaders of successive generations of the German chemical profession and as scientists sharing a 19th-century liberal, internationalist outlook from the German wars of unification in the 1860s to Fischer's death in 1919 in the aftermath of German defeat in World War I. The paper will consider the influence of Hofmann and Fischer on the shaping of national scientific institutions in Germany, from founding of the German Chemical Society in 1867 to the first institutes of the Kaiser Wilhelm Society founded in 1911, their academic leadership in other areas including the shaping of a successful academic-industrial symbiosis in organic chemistry, and finally their response to war as a force disruptive of scientific internationalism. All of these developments posed serious dilemmas, exacerbated by emerging strains of nationalism and anti-Semitism in German society. Whereas Hofmann's lifework came to a relatively successful end in 1892, Fischer was not so fortunate, as the war brought him heavy responsibilities and terrible personal losses, but with no German victory and no peace of reconciliation - a bleak end for Fischer and the 19th-century liberal ideals that had inspired him. PMID:26104166

  18. NMR Measures of Heterogeneity Length

    NASA Astrophysics Data System (ADS)

    Spiess, Hans W.

    2002-03-01

    Advanced solid state NMR spectroscopy provides a wealth of information about structure and dynamics of complex systems. On a local scale, multidimensional solid state NMR has elucidated the geometry and the time scale of segmental motions at the glass transition. The higher order correlation functions which are provided by this technique led to the notion of dynamic heterogeneities, which have been characterized in detail with respect to their rate memory and length scale. In polymeric and low molar mass glass formers of different fragility, length scales in the range 2 to 4 nm are observed. In polymeric systems, incompatibility of backbone and side groups as in polyalkylmethacrylates leads to heteogeneities on the nm scale, which manifest themselves in unusual chain dynamics at the glass transition involving extended chain conformations. References: K. Schmidt-Rohr and H.W. Spiess, Multidimensional Solid-State NMR and Polymers,Academic Press, London (1994). U. Tracht, M. Wilhelm, A. Heuer, H. Feng, K. Schmidt-Rohr, H.W. Spiess, Phys. Rev. Lett. 81, 2727 (1998). S.A. Reinsberg, X.H. Qiu, M. Wilhelm, M.D. Ediger, H.W. Spiess, J.Chem.Phys. 114, 7299 (2001). S.A. Reinsberg, A. Heuer, B. Doliwa, H. Zimmermann, H.W. Spiess, J. Non-Crystal. Solids, in press (2002)

  19. One hundred years of the Fritz Haber Institute.

    PubMed

    Friedrich, Bretislav; Hoffmann, Dieter; James, Jeremiah

    2011-10-17

    We outline the institutional history and highlight aspects of the scientific history of the Fritz Haber Institute (FHI) of the Max Planck Society, successor to the Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry, from its founding in 1911 until about the turn of the 21st century. Established as one of the first two Kaiser Wilhelm Institutes, the Institute began as a much-awaited remedy for what prominent German chemists warned was the waning of Germany's scientific and technological superiority relative to the United States and to other European nations. The history of the Institute has largely paralleled that of 20th century Germany. It spearheaded the research and development of chemical weapons during World War I, then experienced a "golden era" during the 1920s and early 1930s, in spite of financial hardships. Under the National Socialists it suffered a purge of its scientific staff and a diversion of its research into the service of the new regime, accompanied by a breakdown in its international relations. In the immediate aftermath of World War II it suffered crippling material losses, from which it recovered slowly in the postwar era. In 1952, the Institute took the name of its founding director and the following year joined the fledgling Max Planck Society, successor to the Kaiser Wilhelm Society. During the 1950s and 1960s, the Institute supported diverse research into the structure of matter and electron microscopy in its geographically isolated and politically precarious location in West Berlin. In subsequent decades, as Berlin benefited from the policies of détente and later glasnost and the Max Planck Society continued to reassess its preferred model of a research institute, the FHI reorganized around a board of coequal scientific directors and renewed its focus on the investigation of elementary processes on surfaces and interfaces, topics of research that had been central to the work of Fritz Haber and the first "golden era" of the Institute. Throughout its one-hundred-year history, the Institute's pace-setting research has been shaped by dozens of distinguished scientists, among them seven Nobel laureates. Here we highlight the contributions made at the Institute to the fields of gas-phase kinetics and dynamics, early quantum physics, colloid chemistry, electron microscopy, and surface chemistry, and we give an account of the key role the Institute played in implementing the Berlin Electron Synchrotron (BESSY I and II). Current research at the Institute in surface science and catalysis as well as molecular physics and spectroscopy is exemplified in this issue [Angew. Chem. 2011, 123, 10242; Angew. Chem. Int. Ed. 2011, 50, 10064]. PMID:21957069

  20. The blood from Auschwitz and the silence of the scholars.

    PubMed

    Müller-Hill, B

    1999-01-01

    The Kaiser Wilhelm Institute for Anthropology, Human Genetics and Eugenics in Berlin-Dahlem was the centre of scientific racism in Nazi Germany. Its bad history culminated in a research project to analyse the molecular basis of racial differences in the susceptibility to various infectious diseases such as tuberculosis. Josef Mengele, a former postdoc of the director of the institute, Otmar von Verschuer, collected blood samples and other material in Auschwitz from families and twins of Jews and Gypsies. The blood samples were analysed by Günther Hillmann in the Berlin laboratory of Nobel Prize winner Adolf Butenandt. Butenandt had just moved to Tübingen. The project was paid for by the Deutsche Forschungsgemeinschaft. Butenandt, Hillmann and von Verschuer made scientific careers in the Federal Republic. To the present day this past has not been acknowledged by the Max-Planck-Gesellschaft as part of its history. PMID:11197188

  1. Gradiva: freud, fetishism, and Pompeian Fantasy.

    PubMed

    Fletcher, John

    2013-10-01

    This paper is a critical reconsideration of Freud's analysis (1907) of Wilhelm Jensen's novella Gradiva: A Pompeian Fantasy (1903). Freud's interest was aroused by the parallels between Jensen's presentation of dreams and Freud's model of dream formation just published in The Interpretation of Dreams (1900). Freud also acclaims Jensen's presentation of the formation and "cure" of his protagonist's delusion about a marble bas-relief of a woman walking. This paper argues for the centrality of the phenomenon of fetishism, briefly considered but excluded from Freud's analysis. The fantasy of Gradiva as "the necessary conditions for loving" (Freud 1910, pp. 165-166) is also a key thesis of the essay, which makes use of the newly translated Freud-Jensen correspondence contained in this article's Appendix. PMID:24194488

  2. The emergence and development of Bekhterev's psychoreflexology in relation to Wundt's experimental psychology.

    PubMed

    de Freitas Araujo, Saulo

    2014-01-01

    After its foundation, the Laboratory for Experimental Psychology at Leipzig University became an international center for psychological research, attracting students from all over the world. The Russian physiologist and psychiatrist Vladimir Bekhterev (1857-1927) was one of Wilhelm Wundt's students in 1885, and after returning to Russia he continued enthusiastically his experimental research on mental phenomena. However, he gradually distanced himself from Wundt's psychological project and developed a new concept of psychology: the so-called Objective Psychology or Psychoreflexology. The goal of this paper is to analyze Bekhterev's position in relation to Wundt's experimental psychology, by showing how the former came to reject the latter's conception of psychology. The results indicate that Bekhterev's development of a philosophical program, including his growing interest in establishing a new Weltanschauung is the main reason behind his divergence with Wundt, which is reflected in his conception of scientific psychology. Despite this, Wundt remained alive in Bekhterev's mind as an ideal counterpoint. PMID:24615694

  3. The origin of the vertebrate skeleton

    NASA Astrophysics Data System (ADS)

    Pivar, Stuart

    2011-01-01

    The anatomy of the human and other vertebrates has been well described since the days of Leonardo da Vinci and Vesalius. The causative origin of the configuration of the bones and of their shapes and forms has been addressed over the ensuing centuries by such outstanding investigators as Goethe, Von Baer, Gegenbauer, Wilhelm His and D'Arcy Thompson, who sought to apply mechanical principles to morphogenesis. However, no coherent causative model of morphogenesis has ever been presented. This paper presents a causative model for the origin of the vertebrate skeleton, based on the premise that the body is a mosaic enlargement of self-organized patterns engrained in the membrane of the egg cell. Drawings illustrate the proposed hypothetical origin of membrane patterning and the changes in the hydrostatic equilibrium of the cytoplasm that cause topographical deformations resulting in the vertebrate body form.

  4. Mycotoxic flora and mycotoxins in smoke-dried fish from Sierra Leone.

    PubMed

    Jonsyn, F E; Lahai, G P

    1992-01-01

    Examination of 20 samples of smoke-dried fish of the Ethmolosa sp. commonly called "Bonga", from homes and markets in Njala (Sierra Leone) revealed the presence of 4 Aspergilli species: A. flavus Links ex Fries, A. ochraceus Wilhelm, A. tamarii Kita and A. niger van Tieghem. Fresh or properly preserved smoke-dried fish showed no signs of fungal contamination. Mouldy fish extracts contained varying amounts of aflatoxins B1, G1, G2 and ochratoxin A. Isolates of A. flavus grown on yeast extract sucrose (YES) medium, produced considerable amounts of aflatoxin B1 and G1 and trace amounts of G2. On YES medium A. ochraceus produced large amounts of ochratoxin A but no penicillic acid. PMID:1480216

  5. Elevational gradient of Hemiptera (Heteroptera, Auchenorrhyncha) on a tropical mountain in Papua New Guinea

    PubMed Central

    Wilson, Stephen W.; Soulier-Perkins, Adeline

    2015-01-01

    Malaise trap sampling of Hemiptera (Heteroptera; Auchenorrhyncha) was conducted at 500 m intervals along an elevational gradient from 200 m to 3,700 m on the east slope of Mount Wilhelm, Madang Province, Papua New Guinea. Hemiptera had a decrease in morphospecies richness and overall abundance with increasing elevation, however, the Heteroptera did not exhibit either pattern. A few species were relatively abundant at each elevation, whereas the majority of species were represented by ?5 specimens. Morphospecies richness of Auchenorrhyncha, Cicadomorpha, Fulgoromorpha, Cicadellidae, Cixiidae, and Derbidae also decreased with increasing elevation but abundance decline was not significant due to the large number of specimens captured at 200 m relative to those captured at higher elevations. The percentage of Cicadomorpha specimens decreased with increasing elevation relative to that of the Fulgoromorpha which increased with increasing elevation. Environmental factors that may influence patterns of species richness along the elevational gradient are discussed. PMID:26056617

  6. ["Could not therefore the earth globe also be a large tourmaline?" A crystal, Lichtenberg and the polarity discussion before 1800].

    PubMed

    Wiesenfeldt, Gerhard; Breidbach, Olaf

    2012-01-01

    This paper focuses on the debate on one particular phenomenon of the research into electrical charge distribution prior to 1800: the description and interpretation of polarities observed on the tourmaline. We show that in the second half of the eighteenth century this crystal became a model to distinguish and categorize different qualities of charges (electric and magnetic fluids). It will become clear that the polarity detected on the tourmaline became a key concept for eighteenth century natural philosophy, which relied on analogizing operations. We illustrate this concentrating on Lichtenbergs first lecture at the Göttingen academy of science in 1778. Thus the concept of polarity is already a central ordering category before the beginnings of the speculative enterprise of idealistic Naturphilosophy. Consequently, the physicist Johann Wilhelm Ritter, who can be positioned in that context, consciously adheres to the experimental research tradition of polarities portrayed in this paper. PMID:23155759

  7. Ludwig: the physiologist.

    PubMed

    Valentinuzzi, Max; Beneke, Klaus; Gonzalez, German

    2012-01-01

    The thought reproduced in the above epigraph is taken from an article by Thurau et al. [1], who attribute it to Arthur Schopenhauer (17881860), an outstanding philosopher and author of the far-reaching piece Die Welt als Wille und Vorstellung (The World as Will and Representation). In German, it would perhaps read as etwas denken, das niemand vorher gedacht hat, während etwas sehen, was jeder sieht. We could not assert whether Schopenhauer really said that, but it should not be at all surprising if it were, because it sounds simple, perhaps even naïve, and very deep, indeed. It fits perfectly to Carl Friedrich Wilhelm Ludwigs personality (18161895), whom we will look at as physiologist in this second note. Yes, second note-because in the first one [2], we looked at him as bioengineer. A third and last Retrospectroscope column completing this series will deal with his wonderful and always humble and generous activities as teacher. PMID:23014707

  8. Effects of Dissipation on a Superconducting Single Electron Transistor

    SciTech Connect

    Kycia, J. B.; Chen, J.; Therrien, R.; Kurdak, C .; Campman, K. L.; Gossard, A. C.; Clarke, John

    2001-07-02

    We measure the effect of dissipation on the minimum zero-bias conductance, G{sup min}{sub 0} , of a superconducting single electron transistor (sSET) capacitively coupled to a two-dimensional electron gas (2DEG) in a GaAs/AlGaAs heterostructure. Depleting the 2DEG with a back gate voltage decreases the dissipation experienced by the sSET in situ. We find that G{sup min}{sub 0} increases as the dissipation is increased or the temperature is reduced; the functional forms of these dependences are compared with the model of Wilhelm etal.in which the leads coupled to the sSET are represented by lossy transmission lines.

  9. Results from the intercalibration of optical low-light calibration sources 2011

    NASA Astrophysics Data System (ADS)

    Brändström, B. U. E.; Enell, C.-F.; Widell, O.; Hansson, T.; Whiter, D.; Mäkinen, S.; Mikhaylova, D.; Axelsson, K.; Sigernes, F.; Gulbrandsen, N.; Schlatter, N. M.; Gjendem, A. G.; Cai, L.; Reistad, J. P.; Daae, M.; Demissie, T. D.; Andalsvik, Y. L.; Roberts, O.; Poluyanov, S.; Chernouss, S.

    2011-12-01

    Following the 38th Annual Meeting on Atmospheric studies by Optical methods at Siuntio in Finland, an intercalibration workshop for optical low-light calibration sources was held in Sodankylä, Finland. The main purpose of this workshop was to provide a comparable scale for absolute measurements of aurora and airglow. All sources brought to the intercalibration workshop were compared to an international standard source (Fritz-Peak) using the Lindau Calibration Photometer built by Wilhelm Barke and Hans Lauche in 1984. The international standard source is on loan from Michael Gadsden, Aberdeen. The results were compared to several earlier intercalibration workshops. It was found that most sources were fairly stable over time with errors in the range of 5-20%. To further validate the results, two sources were also intercalibrated at UNIS, Longyearbyen, Svalbard. Preliminary analysis indicate good agreement with the intercalibration in Sodankylä.

  10. Conception and development of the Second Life® Embryo Physics Course.

    PubMed

    Gordon, Richard

    2013-06-01

    The study of embryos with the tools and mindset of physics, started by Wilhelm His in the 1880s, has resumed after a hiatus of a century. The Embryo Physics Course convenes online allowing interested researchers and students, who are scattered around the world, to gather weekly in one place, the virtual world of Second Life®. It attracts people from a wide variety of disciplines and walks of life: applied mathematics, artificial life, bioengineering, biophysics, cancer biology, cellular automata, civil engineering, computer science, embryology, electrical engineering, evolution, finite element methods, history of biology, human genetics, mathematics, molecular developmental biology, molecular biology, nanotechnology, philosophy of biology, phycology, physics, self-reproducing systems, stem cells, tensegrity structures, theoretical biology, and tissue engineering. Now in its fifth year, the Embryo Physics Course provides a focus for research on the central question of how an embryo builds itself. PMID:23586840

  11. ["Directed perception", "mood", "social reinforcement". Sketches towards the historical semantics of Ludwik Fleck's Genesis and Development of a Scientific Fact].

    PubMed

    Bauer, Julian

    2014-01-01

    This article analyses three basic concepts of Ludwik Fleck's Genesis and Development of a Scientific Fact. It shows first that Fleck's notion of "directed perception" is closely linked to Jakob von Uexküll's writings on the "Umwelt" of animals and humans. The article then proposes to regard the epistemological debates surrounding parapsychology as an important testing ground for the Fleckian concept of „mood“ and his concomitant hypotheses about „the tenacity of systems of opinion and the harmony of illusions". It finally argues that Fleck's modification of Wilhelm Jerusalem's idea of the "social consolidation" of knowledge helps us to understand the indebtedness of Fleck towards early functionalist sociology as well as his strong belief in "specific historical laws governing the development of ideas"The historical semantics of Fleck's works hence proves that his insights are neither marginal nor revolutionary but rather deeply rooted within scientific traditions from the late 19th and early 20th centuries. PMID:24407936

  12. Molecular Structure of Nitric acid (aq)

    NSDL National Science Digital Library

    2002-09-10

    Nitric acid was first discovered in 1648 by a German chemist, Johann Rudolf. However, in 1901 Wilhelm Ostwald developed the Ostwald Process, which became the principle way of producing nitric acid. During the Ostwald process, ammonia gas is successively oxidized to nitric oxide and nitrogen dioxide by air or oxygen in the presence of a platinum gauze catalyst. Nitric acid has a characteristic choking odor that is acrid and suffocating. It is a caustic and corrosive liquid which will attack some forms of plastics, rubber and coatings. Nitric acid is not combustible, but it may give off poisionous oxides of nitrogen and acid fumes when heated in fire. Nitric acid is mainly used in the production of fertilizers, explosives, flares and rocket propellants. Nitric acids react with toluene in the presence of sulfuric acid to form trinitrotoluene (TNT).

  13. [F. W. Sertürner and the discovery of morphine. 200 years of pain therapy with opioids].

    PubMed

    Klockgether-Radke, A P

    2002-05-01

    Since many centuries mankind has been aware of the poppy (papaver somniferum) and has known its product opium as an analgesic drug. Until the beginning of the 19 (th) century its compounds were not known, making it almost impossible to apply the substance in exact doses. 1803/04, Friedrich Wilhelm Sertürner (1783 - 1841) succeeded in isolating a crystalline substance from opium in the test tube, which he called morphium. In animals and in man he was able to prove that this new compound he had discovered was the principium somniferum of opium. He isolated morphine, the first pure opioid available for calculated pain therapy with one defined compound. Moreover, he laid the foundations of a new class of pharmaceutical drugs, the alcaloids. PMID:12015680

  14. Aerodynamics and mathematics in National Socialist Germany and Fascist Italy: a comparison of research institutes.

    PubMed

    Epple, Moritz; Karachalios, Andreas; Remmert, Volker R

    2005-01-01

    The article is concerned with the mathematical sciences in National Socialist Germany and Fascist Italy, with special attention to research important to the war effort. It focuses on three institutional developments: the expansion of the Kaiser Wilhelm Institute for Fluid Dynamics in Göttingen, the foundation of the Reich Institute for Mathematics in Oberwolfach (Black Forest), and the work of the Istituto Nazionale per le Applicazioni del Calcolo in Rome. All three developments are embedded in the general political background, thus providing a basis for comparative conclusions about the conditions of the mathematical sciences and military-related research in Germany and Italy. It turns out that in both countries, the increasing demand for mathematical knowledge in modern warfare led to the establishment of "extra-university" national institutions specifically devoted to mathematical research. PMID:20503761

  15. The "Jews" of the antifascist left: homosexuality and socialist resistance to Nazism.

    PubMed

    Oosterhuis, H

    1995-01-01

    In the early 1930s, German Social Democrats and Communists seized upon the homosexual orientation of some Nazi leaders, especially Ernst Röhm, with the aim of discrediting the entire National Socialist movement. In Western Europe as well as the Soviet Union, there was a general tendency among socialists in the 1930s to identify homosexuality with Nazism. Antifascist leftists created the impression that homosexuality was widespread in Nazi organizations. Such socialist theorists as Wilhelm Reich tended to view homosexuality sociologically and psychologically as a typical rightist, nationalist, and above all fascist aberration. Leftist aversion to homosexuality was not only an expression of political opportunism. Prejudices against homosexuality were part and parcel of socialist thinking and became even more deep-rooted among leftists as a consequence of the ideological and moral confrontation with National Socialism. Against the presumed immortality and perversion of the Nazis, the antifascists stressed their own rationality and purity. PMID:8666756

  16. Redescription of Jenkina articulata Brøndsted from the deep Eckström Shelf, E-Weddell Sea, Antarctica and a comment on the possible mass occurrence of this species

    NASA Astrophysics Data System (ADS)

    Janussen, Dorte; Tore Rapp, Hans

    2011-10-01

    This paper reports on an unexpected large catch of the rare calcareous sponge species Jenkina articulataBrøndsted, 1931, taken in the Antarctic Weddell Sea during the ANT XXIV/2-SYSTCO expedition in January 2008. This species is only known from the original description from two specimens collected from the type locality off Wilhelm II-Land. During the SYSTCO expedition more than 60 specimens were collected using an Agassiz trawl at 600 m depth on the Eckström Shelf, Eastern Weddell Sea. Based on this collection, we give a redescription of the incompletely known species, place the locality of catch in a major context, and discuss possible explanations for the rich occurrence of this species in the sponge-ground fauna.

  17. [Von Hippel-Lindau syndrome].

    PubMed

    Reich, H; Hollwich, F

    1984-06-01

    The von Hippel-Lindau syndrome is an autosomal dominant condition that comprises, apart from angiomas of the retina, the cerebellum, the spinal cord, and the cerebrum, also cystic and blastomatous dysplasias resulting from maldevelopment, namely cystic kidney and pancreas, hypernephroma, and pheochromocytoma. Early observers of the syndrome were the English neurologist John Hughlings Jackson (1872) and the German ophthalmologist Hugo Magnus (1874). The typical association of angiomas of the retina with the cerebellum was first described in 1905 by the Prague ophthalmologist Wilhelm Czermak, long before Lindau (1926). The fact that hypernephromas and pheochromocytomas may form parts of it characterizes the syndrome as a polyneoplastic hereditary disease and the sufferers as members of families at risk. Since the ophthalmologist is often the first to recognize this disease by direct inspection of the fundi, he is responsible for ensuring proper medical care for the affected person and his or her entire family. PMID:6384634

  18. [Anthropology and synthetic Darwinism in the Third Reich: The Evolution of Organisms (1943)].

    PubMed

    Hossfeld, Uwe; Junker, Thomas

    2003-03-01

    This essay will analyse early attempts to base anthropology on the theoretical model provided by the emerging synthetic Darwinism of the 1940s. In the first section we will investigate the historical context of the publication of one of the central documents of synthetic Darwinism in Germany: Gerhard Heberer's Die Evolution der Organismen (1943). Anthropology was covered extensively in this book. The second section will give an impression of the live and work of the five anthropologists represented in Heberer's book: Christian von Krogh, Wilhelm Gieseler, Otto Reche, Hans Weinert, and Gerhard Heberer. The third part of our paper will clarify whether these anthropologists shared a common theoretical outlook with the founders of synthetic Darwinism, and to what degree they were committed to the racial ideas of the Third Reich. PMID:12712776

  19. Contributions to the History of Astronomy, Vol. 8 (German Title: Beiträge zur Astronomiegeschichte, Band 8)

    NASA Astrophysics Data System (ADS)

    Dick, Wolfgang R.; Hamel, Jürgen

    The contributions span a time interval of more than 450 years. There are biographical investigations on Georg Joachim Rheticus, C.W.A. von Wahl and K.F. Heym, investigation on a reprint of a chapter of the principal work of Nicolaus Copernicus, on Christoph Scheiner and the "camera obscura", and, with respect to the history of timekeeping, on the "big Nuremberg clock". 19th century topics are: a contribution on the honorary doctorate of Joseph Fraunhofer, and on the construction of a lunar globe by Wilhelmine Witte, while the report on Friedrich Wilhelm Bessel and the cholera pandemia in Königsberg in the year 1831 gives a view into everyday life of scientists. 20th century topics are: the contributions on Bruno Thüring in Vienna and his relations with national socialism, as well as on Arthur Beer, Albert Einstein and the Warburg library. The book concludes by short communications, obituaries and book reviews.

  20. [The "diagnosis" in the light of Charles S. Peirce, Sherlock Holmes, Sigmund Freud and modern neurobiology].

    PubMed

    Adler, R H

    2006-05-10

    A diagnostic hypothesis is a causa ficta. It is an assumption, suitable to explain phenomena, which are not yet proven to be the only and valid explanation of the observed. One of Wilhelm Hauff's faitales illustrates how a hypothesis is generated. It is based on the interpretation of signs. Signs are of an ikonic, an indexical or a symbolic nature. According to S. Peirce, a hypothesis is created by abduction, to Conan Doyle's Sherlock Holmes by immersion into thoughts, and to S. Freud by free floating attention. The three procedures are alike. Neurobiological structures and functions, which correspond to these processes, are described; especially the emotional-implicite memory. The technique of hypothesis-generation is meaningful to clinical medicine. PMID:16722205

  1. Withstanding trauma: the significance of Emma Eckstein's circumcision to Freud's Irma dream.

    PubMed

    Bonomi, Carlo

    2013-07-01

    The author considers the medical rationale for Wilhelm Fliess's operation on Emma Eckstein's nose in February 1895 and interprets the possible role that this played in Freud's dream of Irma's injection five months later. The author's main argument is that Emma likely endured female castration as a child and that she therefore experienced the surgery to her nose in 1895 as a retraumatization of her childhood trauma. The author further argues that Freud's unconscious identification with Emma, which broke through in his dream of Irma's injection with resistances and apotropaic defenses, served to accentuate his own "masculine protest". The understanding brought to light by the present interpretation of Freud's Irma dream, when coupled with our previous knowledge of Freud, allows us to better grasp the unconscious logic and origins of psychoanalysis itself.(1.) PMID:23824652

  2. How Einstein made asymmetry disappear: symmetry and relativity in 1905

    NASA Astrophysics Data System (ADS)

    Hon, Giora; Goldstein, Bernard R.

    2005-07-01

    Contents: I. Introduction II. Einstein's usages of the term symmetry in 1905 1. The dissertation (April 1905) Case 1: isotropy Case 2: analogy Case 3: geometrical usage 2. "On the electrodynamics of moving bodies" (June 1905) Case 1: indifference Case 2: two algebraic usages Case 3: physical usage Case 4: algebraic usage Case 5: rejecting asymmetry 3. The central claim: making asymmetry disappear by appealing to a physical argument 4. Conclusion III. Background. The term symmetry and its "relatives": duality, parallelism, and reciprocity 1. Heinrich Hertz (1857-1894) 2. Oliver Heaviside (1850-1925) 3. August Föppl (1854-1924) 4. Emil Wiechert (1861-1928) 5. Wilhelm Wien (1864-1928) 6. Hendrik Antoon Lorentz (1853-1928) 7. Summary

  3. Jung, Evans-Wentz and various other gurus.

    PubMed

    McGuire, William

    2003-09-01

    How did Jung become deeply concerned with Asian religions and particularly with the Tibetan Buddhism of a Welshman from Trenton, New Jersey? Could that man be considered one of Jung's gurus? This essay begins six years after Jung, at twenty, was admitted to the medical school of Basel University and became a member of the Zofingiaverein, a student society. The next year he gave the first of a series of lectures on the interpretation of Christ as the model of the 'god-man', like the Apostle Paul, Confucius, Zoroaster and the Buddha, who was 'drummed into the Hindu boy'. (Jung's Zofingia Lectures were discovered only after his death, in 1961, and were published in English in 1983). The present essay discusses Jung's early Buddhist interest as displayed in The Psychology of the Unconscious (finally, in a revision, entitled Symbols of Transformation), in Psychological Types and later in his foreword of the Wilhelm translation of the I Ching. Jung was influenced by the gurus Richard Wilhelm and his son Hellmut, the scholar J. W. Hauer (with whom he later broke off relations because of Hauer's Nazi politics), the indologist Heinrich Zimmer, and the Zen master D. T. Suzuki. Walter Yeeling Wentz was born in Trenton in 1878 and brought up in his family's theosophist faith. The Wentzes moved to San Diego in 1900, and Walter added his mother's Celtic surname, Evans, to the German Wentz. He was educated at Stanford University and travelled in Europe, studying Celtic folklore, and widely in the Near East, Tibet, India, and Oxford--studying religions everywhere and editing Tibetan books. He lived his last decades in San Diego and conducted a correspondence with Jung, while living in a cheap hotel, or in an ashram. PMID:14513477

  4. Lunar Impact Basins: Stratigraphy, Sequence and Ages from Superposed Impact Crater Populations Measured from Lunar Orbiter Laser Altimeter (LOLA) Data

    NASA Technical Reports Server (NTRS)

    Fassett, C. I.; Head, J. W.; Kadish, S. J.; Mazarico, E.; Neumann, G. A.; Smith, D. E.; Zuber, M. T.

    2012-01-01

    Impact basin formation is a fundamental process in the evolution of the Moon and records the history of impactors in the early solar system. In order to assess the stratigraphy, sequence, and ages of impact basins and the impactor population as a function of time, we have used topography from the Lunar Orbiter Laser Altimeter (LOLA) on the Lunar Reconnaissance Orbiter (LRO) to measure the superposed impact crater size-frequency distributions for 30 lunar basins (D = 300 km). These data generally support the widely used Wilhelms sequence of lunar basins, although we find significantly higher densities of superposed craters on many lunar basins than derived by Wilhelms (50% higher densities). Our data also provide new insight into the timing of the transition between distinct crater populations characteristic of ancient and young lunar terrains. The transition from a lunar impact flux dominated by Population 1 to Population 2 occurred before the mid-Nectarian. This is before the end of the period of rapid cratering, and potentially before the end of the hypothesized Late Heavy Bombardment. LOLA-derived crater densities also suggest that many Pre-Nectarian basins, such as South Pole-Aitken, have been cratered to saturation equilibrium. Finally, both crater counts and stratigraphic observations based on LOLA data are applicable to specific basin stratigraphic problems of interest; for example, using these data, we suggest that Serenitatis is older than Nectaris, and Humboldtianum is younger than Crisium. Sample return missions to specific basins can anchor these measurements to a Pre-Imbrian absolute chronology.

  5. The I Ching and the psyche-body connection.

    PubMed

    Ma, Shirley S Y

    2005-04-01

    Carl G. Jung's fateful meeting with Richard Wilhelm in 1929 has helped to build a bridge of depth psychological understanding between the East and the West. When Jung emerged from his 'confrontation with the unconscious', he felt validated by Wilhelm in his discovery of the healing power of medieval alchemical symbolism for the European psyche. Analytical psychology however offers a scientific, psychological understanding of Chinese wisdom as contained in the I Ching and Taoist alchemy. The Taoist alchemical tradition (also known as the Inner Elixir tradition of which 'The Secret of the Golden Flower' is a sample text) is based on the premise that psychological experience of the Tao can be achieved through mental and physiological means such as breathing and meditative techniques, gymnastics, dietary regimens such as fasting, consumption of medicinal herbs and minerals, and special sexual practices. This tradition incorporates the I Ching and traditional Chinese medicine in the alchemical opus. Taoist alchemy assumes the primacy of the physical body in the process of self-realization. The psychological and cosmic forces of the trigrams of the I Ching are stored in the internal organs of the body and are the basic material for the experience of Tao. The internal organs are the foundation of the material and subtle bodies and through cultivation, the body becomes spiritualized as the spirits are embodied. The body as a reflection of the entire cosmos becomes the residence of the gods. The realization of a new consciousness is symbolized by the hexagram Fu, meaning rebirth. The Chinese notion of Tao coincides with Jung's postulation of the unus mundus, the unity of existence which underlies the duality of psyche and matter, the psycho-physical background of existence. In this light, in the world of inner experience, East and West follow similar paths symbolically. PMID:15817045

  6. Innovative Conditioning Procedures for the Generation of Radioactive Waste Products which are Stable for Intermediate Storage or Repository-Independent in Final Storage

    SciTech Connect

    Steinmetz, H.J.; Heimbach, H.; Odoj, R. [Research Centre Juelich, D-52425 Juelich (Germany); Pruesse, R.; Wartenberg, W. [QSA Global GmbH, D-38001 Braunschweig (Germany)

    2006-07-01

    The German Federal Government aims at a future final storage site for all kinds of radioactive waste within 30 years. Existing and newly-produced radioactive waste therefore has to be stored in interim storage facilities over very long periods of time. At present, most German radioactive waste or waste packages are produced and qualified according to the acceptance criteria of the projected final repository KONRAD. [1] Nevertheless, conditioning strategies for crude radioactive waste have to take into account the open question of the future repository site as well as requirements for long-term interim storage. The Quality Control Group for Radioactive Waste (in German: Produktkontrollstelle fuer radioaktive Abfaelle - PKS) works as an independent expert organisation for the quality checking of radioactive waste packages as well as evaluating conditioning procedures for waste containers suitable for final storage on behalf of the Federal Office for Radiation Protection (in German: Bundesamt fuer Strahlenschutz - BfS). The Institute for Safety Research and Reactor Technology (in German: Institut fuer Sicherheitsforschung and Reaktortechnik - ISR) of the Research Centre Juelich investigates scientific/technical problems of nuclear disposal, especially in the field of waste treatment. In this context, ISR and PKS investigated and/or evaluated innovative procedures, by means of which radioactive waste flows may be minimized and rendered inert. QSA Global (formerly: AEA Technology QSA) conditions radioactive waste of German users from the fields of medicine, research and industry as well as from its own radioactive source production and operates an intermediate storage facility for radioactive waste containers. This poster deals with the characteristics and possible applications of new waste fixation media on the basis of organic and inorganic mineral polymers; with the approach of producing inherently safe waste forms for various geological formations. Plasma technology and inorganic additives produce volume reduced glasses. Organic polymers evaluated are polysiloxane compounds with additives like barium sulfate, lead dioxide or others, depending on the specific requirements. As a counterpart to organic polymers, mineral polymers are based on silica and alumina, exhibiting better mechanical and thermal properties, as well as higher durability, compared with concrete. Thus QSA Global uses mineral polymers for packing radioactive waste containers, if high safety requirements have to be fulfilled like the waste acceptance criteria for the KONRAD repository. (Plasma products so far generated in experiments resemble natural obsidian, a highly inert and stable volcanic glass). (authors)

  7. Experimentally Derived Mechanical and Flow Properties of Fine-grained Soil Mixtures

    NASA Astrophysics Data System (ADS)

    Schneider, J.; Peets, C. S.; Flemings, P. B.; Day-Stirrat, R. J.; Germaine, J. T.

    2009-12-01

    As silt content in mudrocks increases, compressibility linearly decreases and permeability exponentially increases. We prepared mixtures of natural Boston Blue Clay (BBC) and synthetic silt in the ratios of 100:0, 86:14, 68:32, and 50:50, respectively. To recreate natural conditions yet remove variability and soil disturbance, we resedimented all mixtures to a total stress of 100 kPa. We then loaded them to approximately 2.3 MPa in a CRS (constant-rate-of-strain) uniaxial consolidation device. The analyses show that the higher the silt content in the mixture, the stiffer the material is. Compression index as well as liquid and plastic limits linearly decrease with increasing silt content. Vertical permeability increases exponentially with porosity as well as with silt content. Fabric alignment determined through High Resolution X-ray Texture Goniometry (HRXTG) expressed as maximum pole density (m.r.d.) decreases with silt content at a given stress. However, this relationship is not linear instead there are two clusters: the mixtures with higher clay contents (100:0, 84:16) have m.r.d. around 3.9 and mixtures with higher silt contents (68:32, 50:50) have m.r.d. around 2.5. Specific surface area (SSA) measurements show a positive correlation to the total clay content. The amount of silt added to the clay reduces specific surface area, grain orientation, and fabric alignment; thus, it affects compression and fluid flow behavior on a micro- and macroscale. Our results are comparable with previous studies such as kaolinite / silt mixtures (Konrad & Samson [2000], Wagg & Konrad [1990]). We are studying this behavior to understand how fine-grained rocks consolidate. This problem is important to practical and fundamental programs. For example, these sediments can potentially act as either a tight gas reservoir or a seal for hydrocarbons or geologic storage of CO2. This study also provides a systematic approach for developing models of permeability and compressibility behavior needed as inputs for basin modeling.

  8. Challenges dealing with depleted uranium in Germany - Reuse or disposal

    SciTech Connect

    Moeller, Kai D. [Federal Office for Radiation Protection, Bundesamt fuer Strahlenschutz - BFS, Postfach 10 01 49, D-38201 Salzgitter (Germany)

    2007-07-01

    During enrichment large amounts of depleted Uranium are produced. In Germany every year 2.800 tons of depleted uranium are generated. In Germany depleted uranium is not classified as radioactive waste but a resource for further enrichment. Therefore since 1996 depleted Uranium is sent to ROSATOM in Russia. However it still has to be dealt with the second generation of depleted Uranium. To evaluate the alternative actions in case a solution has to be found in Germany, several studies have been initiated by the Federal Ministry of the Environment. The work that has been carried out evaluated various possibilities to deal with depleted uranium. The international studies on this field and the situation in Germany have been analyzed. In case no further enrichment is planned the depleted uranium has to be stored. In the enrichment process UF{sub 6} is generated. It is an international consensus that for storage it should be converted to U{sub 3}O{sub 8}. The necessary technique is well established. If the depleted Uranium would have to be characterized as radioactive waste, a final disposal would become necessary. For the planned Konrad repository - a repository for non heat generating radioactive waste - the amount of Uranium is limited by the licensing authority. The existing license would not allow the final disposal of large amounts of depleted Uranium in the Konrad repository. The potential effect on the safety case has not been roughly analyzed. As a result it may be necessary to think about alternatives. Several possibilities for the use of depleted uranium in the industry have been identified. Studies indicate that the properties of Uranium would make it useful in some industrial fields. Nevertheless many practical and legal questions are open. One further option may be the use as shielding e.g. in casks for transport or disposal. Possible techniques for using depleted Uranium as shielding are the use of the metallic Uranium as well as the inclusion in concrete. Another possibility could be the use of depleted uranium for the blending of High enriched Uranium (HEU) or with Plutonium to MOX-elements. (authors)

  9. Soft proton scattering efficiency measurements on x-ray mirror shells

    NASA Astrophysics Data System (ADS)

    Diebold, Sebastian; Tenzer, Chris; Perinati, Emanuele; Santangelo, Andrea; Freyberg, Michael; Friedrich, Peter; Jochum, Josef

    2015-06-01

    In-orbit experience has shown that soft protons are funneled more efficiently through focusing Wolter-type optics of X-ray observatories than simulations predicted. These protons can degrade the performance of solid-state X-ray detectors and contribute to the instrumental background. Since laboratory measurements of the scattering process are rare, an experiment for grazing angles has been set up at the accelerator facility of the University of Tübingen. Systematic measurements at incidence angles ranging from 0.3° to 1.2° with proton energies around 250 keV, 500 keV, and 1 MeV have been carried out. Parts of spare mirror shells of the eROSITA (extended ROentgen Survey with an Imaging Telescope Array) instrument have been used as scattering targets. This publication comprises a detailed description of the setup, the calibration and normalization methods, and the scattering efficiency and energy loss results. A comparison of the results with a theoretical scattering description and with simulations is included as well.

  10. A High Resolution Survey of the Disk of M31

    NASA Technical Reports Server (NTRS)

    Primini, Francis A.

    2000-01-01

    This report describes research activities funded for SAO Proposal P3481-5-95, "Monitoring the Center of M31". Related activities for SAO Proposal P3486- 5-95, "A High-Resolution Survey of the Disk of M31" are also described. The research involved the data analysis and interpretation of eleven separate ROSAT (Roentgen Satellite) HRI (High Resolution Imager) observations of the center and inner disk of M31, obtained between July, 1990 and January, 1997. A log of the individual data sets is given. All proposed observations were successfully carried out by the ROSAT Observatory, and standard data products were successfully generated for each observation. There were two basic thrusts to the research. First, we wished to monitor the x-ray source nearest the nucleus of M31, to search for anti-correlated radio/x-ray variability predicted by theoretical models for the source. We would also be able to assess the degree and range of variability of other x-ray sources in the central bulge of M31 and to estimate rates of transients. Secondly, we wished to survey the entire inner disk of M31, and in particular the region covered by the recent MIT wide-band and narrow-band surveys to identify x-ray counterparts to supernova remnants, OB associations, and young blue stars, in areas in which the ROSAT PSPC survey was confused. Results of each research project are summarized. Papers describing the results in more detail are in preparation.

  11. The composition and structure of white dwarf atmospheres revealed by extreme ultraviolet spectroscopy

    NASA Technical Reports Server (NTRS)

    Barstow, Martin A.; Hubeny, Ivan; Lanz, Thierry; Holberg, Jay B.; Sion, Edward M.

    1995-01-01

    The ROentgen SATellite (ROSAT) and Extreme UltraViolet Explorer (EUVE) all-sky surveys have resulted in an important change in our understanding of the general composition of hydrogen-rich DA white dwarf atmospheres, with the photospheric opacity dominated by heavy elements rather than helium in the hottest stars (T > 40, 000 K). Most stars cooler than 40,000 K have more or less pure H atmospheres. However, one question, which has not been resolved, concerned the specific nature of the heavy elements and the role of helium in the hottest white dwarfs. One view of white dwarf evolution requires that H-rich DA stars form by gravitational settling of He from either DAO or He-rich central stars of planetary nebulae. In this case, the youngest (hottest) DA white dwarfs may still contain visible traces of He. Spectroscopic observations now available with EUVE provide a crucial test of these ideas. Analysis of data from the EUVE Guest Observer programme and EUVE public archive allows quantitative consideration of the sources of EUV opacity and places limits on the abundance of He which may be present.

  12. The X-ray emission of 3C 273 observed with ASCA

    NASA Technical Reports Server (NTRS)

    Yaqoob, Tahir; Serlemitsos, Peter; Mushotzky, Richard; Ricker, George; Woo, Jonathan; Weaver, Kim; Kii, Tsuneo; Mitsuda, Kazuhisa; Kotani, Taro; Hayashida, Kiyoshi

    1994-01-01

    We report preliminary results of an Advanced Satellite for Cosmology and Astrophysics (ASCA) observation of 3C 273. There is no spectral variability within the ASCA observation, in contrast to the longer term behavior found with European X-ray Observatory Satellite (EXOSAT) and Ginga which established significant changes in the spectral index of the power-law continuum on timescales of a week or more, uncorrelated with luminosity. Comparison of the ASCA data with a simultaneous Roentgen Satellite (ROSAT) Ginga observation in 1990 December shows that while the shape of the spectrum above approximately 1 keV is essentially the same, the flux in the soft component, below approximately 1 keV, considerably weaker relative to the hard component in the ASCA observation. The 2-10 keV luminosity is at least a factor of approximately 1.5 greater in the ASCA observation than in the ROSAT/Ginga observation while the ratio of 2-10 keV luminosity to 0.4-1.0 keV luminosity increases by a factor of approximately 1.2. Thus the spectral shape of the hard component appears to be independent of the relative magnitude of the soft component and is an important constraint on emission and reprocessing models. We find no significant Fe K line-emission in this observation. The data also highlight very well some of the outstanding problems in the instrumental responses.

  13. Absorbed dose to water: Standards and traceability for radiation oncology

    SciTech Connect

    Almond, P.R.

    1995-12-31

    Although the need for appropriate quantities and units for ionizing radiation has existed since shortly after discovery of X-rays, the quantities and units in general use today were not completely formalized until about 15 years ago. The development of appropriate national and international standards have also been ongoing. For many years the quantity, exposure, measured in units of roentgen was the national standard and they were also the quantity and units in which radiotherapy was described. With the introduction of megavoltage X-ray and electron-beam equipment and the adoption of the quantity {open_quotes}absorbed-dose{close_quotes} measured in units of rad (or gray) different approaches to calibrating these beams were needed. This was especially the case since the national standard in terms of exposure at a maximum photon energy for {sup 60}Co gamma rays was only available. Since the late 1960s various machine calibration protocols have been published. These protocols have to accommodate changes in modality, energy, quantities and units between the national standard and the user. Because of this, a new definition of traceability is proposed to accommodate the present system. By recording all intercomparisons and parameters used, an auditable calibration chain can be maintained. Even with the introduction of calibration protocols based upon national absorbed dose standards, the proposed traceability definition will still be needed.

  14. ROSAT all-sky survey observations of X-ray variability in cool giant stars

    NASA Technical Reports Server (NTRS)

    Haisch, Bernhard; Schmitt, J. H. M. M.

    1994-01-01

    We have identified 24 active late-type giant stars, including 11 RS CVn systems, with soft X-ray count rates high enough to allow the detection of statistically significant variability on a Roentgen Satellite (ROSAT) orbital timescale (96 minutes) as observed by the Position Sensitive Proportional Counter (PSPC) during the all-sky survey. Our sensitivity typically lies in the range of 10% - 25%, depending on the source count rate. Comparison is made to the daily, nonflare solar soft X-ray variability as observed by the Solrad satellites during solar minimum in 1969 and solar maximum in 1975. Seven of the 24 stars show significant variability; in two of these cases (HR 3922 and HR 8448) major flares were observed in which the peak count rate is enhanced by at least a factor of 3 above quiescent. While HR 3922 (G5 III) is not (yet) classified as an RS CVn star, its flare is more energetic (3 x 10(exp 31) ergs/s) than previously observed RS CVn flares. The apparently single giant HR 8167 (G8 III) also shows two flares. While one might expect to find an anticorrelation between saturated coronae and variability, we find no evidence of this: the two stars in our sample with the highest ratio of f(sub x)/f(sub v) both show variability. We also point out that Capella (G6 III + F9 III) is one of the stars manifesting variability.

  15. Two new supernova remnants in OB associations in the Large Magellanic Cloud

    NASA Technical Reports Server (NTRS)

    Smith, R. Chris; Chu, You-Hua; Mac Low, Mordecai-Mark; Oey, M. S.; Klein, Uli

    1994-01-01

    We discovered two extended x-ray sources in a Roentgen Satellite (ROSAT) Positron Sensitive Proportional Counter (PSPC) observation pointed at the H II region N9 in the Large Magellanic Cloud. These two sources are in the H II regions N4D and N9. The x-ray characteristics suggest that both might be supernova remnants (SNRs). Follow-up charge coupled device (CCD) images taken with interference filters show high (S II)/H-alpha ratios in the optical nebulae of these x-ray sources, confirming the presence of high velocity shocks commonly seen in SNRs. These two sources are also detected in the radio continuum at 8.55 and 4.75 GHz; both appear nonthermal compared to nearby H II regions. The confirmation of these two SNRs demonstrates that many SNRs in or near H II regions have been overlooked in previous surveys, and that the ROSAT x-ray survey combined with an optical CCD imaging survey of the Magellanic Clouds would provide the most effective way to uncover SNRs.

  16. Soft proton scattering efficiency measurements on x-ray mirror shells

    NASA Astrophysics Data System (ADS)

    Diebold, Sebastian; Tenzer, Chris; Perinati, Emanuele; Santangelo, Andrea; Freyberg, Michael; Friedrich, Peter; Jochum, Josef

    2015-04-01

    In-orbit experience has shown that soft protons are funneled more efficiently through focusing Wolter-type optics of X-ray observatories than simulations predicted. These protons can degrade the performance of solid-state X-ray detectors and contribute to the instrumental background. Since laboratory measurements of the scattering process are rare, an experiment for grazing angles has been set up at the accelerator facility of the University of Tübingen. Systematic measurements at incidence angles ranging from 0.3° to 1.2° with proton energies around 250 keV, 500 keV, and 1 MeV have been carried out. Parts of spare mirror shells of the eROSITA (extended ROentgen Survey with an Imaging Telescope Array) instrument have been used as scattering targets. This publication comprises a detailed description of the setup, the calibration and normalization methods, and the scattering efficiency and energy loss results. A comparison of the results with a theoretical scattering description and with simulations is included as well.

  17. Status of ART-XC/SRG Instrument

    NASA Technical Reports Server (NTRS)

    Pavlinsky, M.; Akimov, V.; Levin, V.; Lapshov, I.; Tkachenko, A.; Semena, N.; Buntov, M.; Glushenko, A.; Arefiev, V.; Yaskovich, A.; Sunyaev, R.; Churazov, E.; Gilfanov, M.; Grebenev, S.; Sazonov, S.; Revnivtsev, M.; Lutovinov, A.; Molkov, S.; Kudelin, M.; Drozdova, T.; Garanin, S.; Grigorovich, S.; Litvin, D.; Lazarchuk, V.; Roiz, I.; Garin, M.; Babyshkin, V.; Lomakin, I.; Menderov, A.; Moskvinov, D.; Gubarev, M.; Ramsey, B.; Kilaru, K.; ODell, S. L.; Kolodziejczak, J.; Elsner, R.

    2014-01-01

    Spectrum Roentgen Gamma (SRG) is an X-ray astrophysical observatory, developed by Russia in collaboration with Germany. The mission will be launched in March 2016 from Baikonur, by a Zenit rocket with a Fregat booster and placed in a 6-month-period halo orbit around L2. The scientific payload consists of two independent telescopes - a soft-x-ray survey instrument, eROSITA, being provided by Germany and a medium-x-ray-energy survey instrument ART-XC being developed by Russia. ART-XC will consist of seven independent, but co-aligned, telescope modules. The NASA Marshall Space Flight Center (MSFC) is fabricating the flight mirror modules for the ART-XC/SRG. Each mirror module will be aligned with a focal plane CdTe double-sided strip detectors which will operate over the energy range of 6-30 keV, with an angular resolution of less than 1', a field of view of approximately 34' and an expected energy resolution of about 10 percent at 14 keV.

  18. The ART-XC Instrument on Board the SRG Mission

    NASA Technical Reports Server (NTRS)

    Pavlinksy, M.; Akimov, V.; Levin, V.; Lapshov, I.; Tkachenko, A.; Semena, N.; Buntov, M.; Glushenko, A.; Arefiev, V.; Yaskovish, A.; Sunyaeve, R.; Churazov, E.; Sazonov, S.; Revnivtsev, M.; Lutovinov, A.; Molkov, S.; Kudelin, M.; Garanin, S.; Grigorovich, S.; Litvin, D.; Gubarev, M.; Ramsey, B.; Kilaru, K.; ODell, S. L.; Elsner, R.

    2012-01-01

    Spectrum Roentgen Gamma (SRG) is an X-ray astrophysical observatory, developed by Russia in collaboration with Germany. The mission will be launched in 2014 from Baikonur, by a Zenit rocket with a Fregat booster and placed in a 6-month-period halo orbit around L2. The scientific payload consists of two independent telescopes . a soft-x-ray survey instrument, eROSITA, being provided by Germany and a medium-x-ray-energy survey instrument ART-XC being developed by Russia. ART-XC will consist of seven independent, but co-aligned, telescope modules with seven corresponding cadmium-telluride focal plane detectors. Each will operate over the approximate energy range of 6- 30 keV, with an angular resolution of <1 ', a field of view of 30 ' and an energy resolution about 10% at 14 keV. The NASA Marshall Space Flight Center (MSFC) will fabricate some of the mirror modules, to complement others fabricated by VNIIEF in Russia.

  19. X-ray Variability in the Hot Supergiant zgr Orionis.

    PubMed

    Berghöfer, T W; Schmitt, J H

    1994-09-16

    Hot massive stars represent only a small fraction of the stellar population of the galaxy, but their enormous luminosities make them visible over large distances. Therefore, they are ideal standard candles, used to determine distances of near galaxies. Their mass loss due to supersonic winds driven by radiation pressure contributes significantly to the interstellar medium and thus to the chemical evolution of galaxies. All hot stars are soft x-ray sources; in contrast to the sun with its highly variable x-ray flux, long time scale x-ray variability is not common among hot stars. An analysis is presented here of an unusual increase in x-ray flux observed with the roentgen observatory satellite during a period of 2 days for the hot supergiant zeta Orionis, the only episode of x-ray variability that has been found in a hot star. These observations provide the most direct evidence so far for the scenario of shock-heated gas in the winds of hot stars. PMID:17770897

  20. The carbon-based structures synthesized through nuclear reactions in helium at 1.1?kbar pressure under irradiation with braking ?-rays of 10?MeV threshold energy

    NASA Astrophysics Data System (ADS)

    Didyk, A. Yu.; Wisniewski, R.; Wilczynska-Kitowska, T.

    2015-01-01

    A helium high-pressure chamber (HeHPC), made from beryllium bronze, filled with gaseous helium at an initial pressure of about 1.1 kbar was irradiated by braking ?-rays of 10 MeV threshold energy during 1.0×105 \\text{s} at an electron beam current 22\\text-24 ? \\text{A} . Before opening of the chamber, the residual pressure inside was equal to 430 bar. Synthesized foils of black colour and other multiple objects were found inside the HeHPC at the inner surfaces of the reaction chamber made of high-purity copper, at the entrance window for ?-rays of beryllium bronze, and at the copper collector of nuclear and chemical reaction products. The element analysis using scanning electron microscopy (SEM) and microprobe roentgen analysis (MPRA) allowed us to establish that the foils were predominantly made of carbon and smaller quantities of other elements from carbon to iron. The developed approach agrees well with a series of studies carried out by the authors where dense hydrogen and deuterium gases are acted on by ?-rays in the presence or absence of metals in the reaction chamber.