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  • Blackwell Publishing Ltd  (18,921)
  • University of Chicago Press
  • 1970-1974  (13,300)
  • 1960-1964  (7,998)
  • 1930-1934
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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The author outlines his experiences of photographic surveying, in the early years of the 1930's in the Survey of India, which involved the use of simple graphical methods of plotting.
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Aerial photography may be used to quickly locate and measure the extent and severity of forest damage due to windblow. This paper describes such an application in a small area of semi-natural woodland in central Scotland after the “Great Gale” of 14th and 15th January, 1968. A 1 : 2000 scale map, showing the location and direction of fall of each windblown tree, suggests certain relationships between topography and the severity of woodland damage and gives considerable information on the airflow pattern existing over the area during the gale.
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The International Society for Photogrammetry held the XIIth International Congress at Ottawa during July and August 1972. The authors comprised a panel which engaged in discussion upon the Congress at a meeting of the Photogrammetric Society on 17th October, 1972.
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 8 (1974), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Distinct benefits have been obtained from the use of orthophotography in the initial planning of Scotland's sixth new town, to be located at Stonehouse, 29 km south east of Glasgow, due to a comprehensive approach to the mapping requirements. This paper discusses some of the details of the orthophotomapping project.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméL'orthophotographie s'est révélée d'un usage fort intéressant pour les études d'implantation de la sixième ville nouvelle d'Écosse (Stonehouse, 29 km au S.E. de Glasgow). On discute quelques aspects du projet d'orthophotoplan.〈section xml:id="abs1-3"〉〈title type="main"〉ZusammenfassungDeutliche Vorteile ergaben sich aus der Anwendung der Differentialent-zerrung bei der Vorplanung für Schottlands 6. neue Stadt, die in der Nähe von Stonehouse, 29 km südöstlich von Glasgow liegen soll, infolge der umfassenden Befriedigung der Anforderungen an die Kartenherstellung. Im Artikel werden einige Details des Orthophotokarten-Projektes diskutiert.
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  • 7
    Electronic Resource
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 8 (1974), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: This paper describes work carried out jointly by the British Ship Research Association and the author to assess the value of photogrammetry in acquiring quality control measurements on large steel structures in the shipbuilding industry. In particular, the feasibility of using photogrammetry to resolve one of the problems of joining half ships afloat (that is the dimensional equivalence of the mating faces) is investigated.〈section xml:id="abs1-2"〉〈title type="main"〉Résumé On décrit le travail mené conjointement par la British Ship Research Association et l'auteur pour tester la valeur des méthodes photogrammétriques dans le contrôle de précision de grandes structures d'acier (industrie navale). En particulier on a cherché dans quelles mesure on pouvait utiliser la photogrammétrie pour vérifier la conformité de piéces devant entrer en jonction.〈section xml:id="abs1-3"〉〈title type="main"〉Zusammenfassung Im Artikel werden die gemeinsam vom Autor und der British Ship Research Association durchgeführten Untersuchungen zwecks Eignung der Photogrammetrie bei Gütekontrollen grosser Stahlkonstruktionen im Schiffbau beschrieben. Insbesondere wurde die Anwendungsmöglichkeit der Photogrammetrie bei der Lösung einiger der beim Verbinden schwimmender halber Schiffe auftretenden Probleme untersucht (um die Grössenordnung der Aufnahmeobjekte zu veranschaulichen).
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  • 8
    Electronic Resource
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: A phototheodolite was used during the construction of Llyn Brianne dam to provide stereoscopic coverage of both upstream and downstream shoulders of the dam at each of eight stages of construction. Ground control was established on the valley sides, together with 80 targeted points at various levels on the dam as it progressed. The co-ordinates of the targeted points were determined numerically using a Wild A7. Three dimensional displacements were determined from the change of position to an average accuracy of 0–05 m. Agreement was obtained with independent and more precise measurements and comparisons are made with the upstream displacements. The assumptions of an analytical prediction technique are examined. Profile lines through the dam were also obtained numerically to record the progressing shape of the dam.
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 8 (1974), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The Photogrammetric Society was honoured to be addressed by the Congress Director of the International Society for Photogrammetry during March 1974. Professor Halonen's lecture covered several aspects of current photogrammetric research in Finland. The following account contains contributions by two of his colleagues, J. Hakkarainen and H. Salmenperä, on specific aspects of lens distortion and block adjustment.
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  • 10
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Book reviews in this article:A LAND SYSTEM ATLAS OF WESTERN KENYA. By R. M. Scott, R. Webster and C. J. Lawrance.THE OVERHAUL OF THE 1 : 2500 COUNTY SERIES OF MAPS. Ordnance Survey Professional Paper No. 25, Ordnance Survey of Great Britain, Southampton.TERRAIN ANALYSIS: A GUIDE TO SITE SELECTION USING AERIAL PHOTOGRAPHIC INTERPRETATION. By D. S. Way.PROCEEDINGS OF MAN-MACHINE INTERFACE IN PHOTOGRAM-METRY. Edited by E. Dorrer.ELEMENTARY AIR SURVEY. By W. K. Kilford.CARTOGRAPHIE GÉNÉRALE. Tome II: Méthodes et techniques de production. By R. Cuenin.INTERNATIONAL YEARBOOK OF CARTOGRAPHY (Vol. XII, 1972). Edited by E. Arnberger and F. AuradaRESOURCE SATELLITES AND REMOTE AIRBORNE SENSING FOR CANADA. Proceedings of the First Canadian Symposium on Remote Sensing, Ottawa, February 1972. Edited by D. White.LIBYA: AGRICULTURE AND ECONOMIC DEVELOPMENT. Edited by J. A. Allan, K. S. McLachlan and E. T. Penrose.ÉTUDE EXPÉRIMENTALE DE ĽAÉROTRIANGULATION SEMI-ANALYTIQUE. RAPPORT SUR ĽESSAI “GRAMASTETTEN”. Publication Officielle No. 7 de ľOrganisation Européenne ďÉtudes Photo-grammétriques Expérimentales. By P. Wiser.COORDINATE SYSTEMS AND MAP PROJECTIONS. By D. H. Maling.
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  • 11
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 12
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Several problems are encountered when collecting traffic information by conventional methods and which leave scope for the development of more comprehensive techniques. This paper reviews the potential of different types of photography as an effective means of obtaining comprehensive traffic information. Comparisons between conventional methods and photographic methods are made. The different types of available photography are discussed, together with their uses in the field of traffic data acquisition. Finally, the paper assesses the use of automatic and semiautomatic methods of photographic data analysis in this context.
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  • 13
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Book reviews in this article:PHOTOGRAMMETRIC GUIDE. By J. Albertz and W. Kreiling.THE READJUSTMENT OF THE RETRIANGULATION OF GREAT BRITAIN, AND ITS RELATIONSHIP TO THE EUROPEAN TERRESTRIAL AND SATELLITE NETWORKS. By V. Ashkenazi, P. A. Cross, M. J. K. Davies and D. W. Proctor.GUIDE TO SITE SURVEYING. Edited by R. Hewitt.PHOTOGRAMMÉTRIE GÉNÉRALE. By H. Bonneval.
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  • 14
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The Ordnance Survey makes extensive use of air survey in its mapping programmes at scales of 1 : 1250, 1 : 2500 and 1 : 10 000. A short history of the development of air survey within the Ordnance Survey leads into a description of current methods including the flying, processing and aerial triangulation tasks as well as the plotting of the maps by instrumental or graphical means.
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  • 15
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: A number of proposals have been put forward for the extraction of three dimensional data from a pair of electron microscope photographs taken from different angles. The methods used have, in general, been either point by point analyses or rather inconvenient. This paper shows that an existing photogrammetric plotter of topographic accuracy can, with very simple modification, be converted to give continuous plotting facilities from certain such micrographs.
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  • 16
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 17
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The author reminisces upon a career of almost 40 years as a practising surveyor photogrammetrist, both as a Royal Engineer officer and as a director of a commercial survey organisation. The reminiscences include service with the Survey of India, war time operations in the Middle East and South East Asia Command, and commercial surveys of all types in developing countries. Professional service with international surveying and photogrammetric organisations is also mentioned, with particular reference to the fraternal aspects of international photogrammetry.
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  • 18
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: An increasing number of applications of photogrammetry are concerned with the analysis of models, constructed to simulate proposed or existing conditions in architecture and engineering. The paper draws attention to some of these projects and reports one example in detail.
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  • 19
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 20
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 3 (1961), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Book reviews in this article:THE CHESA PHOTOGRAMMETRIC EXPERIMENT (Technical Publication
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  • 21
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 22
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1973), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 23
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The author describes the photogrammetric equipment in use by the Royal Commission on Historical Monuments (England), the methods used and the work that is being done in architectural recording. The difficulties and the possibilities of future architectural work in the United Kingdom are discussed and the achievements of some other countries in this field are reviewed.
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  • 24
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1972), S. 0 
    ISSN: 1477-9730
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    Topics: Architecture, Civil Engineering, Surveying
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  • 25
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1971), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Four papers were read during the first symposium to be held by the Photogrammetric Society, at the University of Birmingham on 3rd and 4th April. Major General R. LI. Brown examined the staff structure of the organisations engaged upon the photogrammetric production of maps in the United Kingdom. Mr. J. R. Hollwey outlined the syllabus for a new Higher National Certificate in photogrammetry during a session which was devoted to education and qualifications. Subsequently, Professor A. J. van der Weele explained the evolution of the courses at ITC. By way of contrast, Professor E. H. Thompson attempted a forecast of developments in photogrammetry during the next decade. The papers succeeded in initiating prolonged discussion among the 80 members who attended.
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  • 26
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1971), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: A method is described for determining wind vectors in the lower atmosphere from terrestrial stereophotography. The photographs were taken with specially adapted aerial cameras using the normal or parallel averted case with horizontal camera axes. The most favourable photographic registration was obtained on ORWO UT 16 colour reversal film. Photograph co-ordinates and horizontal parallaxes were measured and recorded on punched tape with the Zeiss (Jena) stecometer. Vector components, which were calculated from co-ordinate differences, and a statistical analysis were obtained by using an electronic computer.
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  • 27
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1971), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 28
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 7 (1971), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
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  • 29
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 8 (1974), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The current methods for describing and comparing shapes of teeth have a number of inadequacies which lead to inaccuracy and misinterpretation. A method is described which depends on co-ordinate information. Stereoscopic microphotography of teeth crowns is used to take co-ordinates of up to 600 points on the tooth surface. Mathematical surfaces are fitted to the co-ordinates by the method of least squares and analysed by trend surface analysis. The results show that this is a useful method of describing a complex shape, although there are problems which render comparison more difficult.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméLes méthodes qu'on utilise généralement pour décrire et comparer les formes des dents sont de par leur nature imprécises et peu sûres. On décrit une méthode basée sur l'utilisation de coordonnées tridimensionnelles. A partir de micro-stéréogrammes de couronnes dentaires, on relève les coordonnées de près de 600 points de la surface de la dent. Ce semis est ensuite lissé par des surfaces mathématiques et étudié par les méthodes de l'analyse des surfaces. On conclut qu'il s'agit d'une utile méthode de description d'une forme complexe, quoique les comparaisons de dent à dent restent difficiles.〈section xml:id="abs1-3"〉〈title type="main"〉ZusammenfassungDie gegenwärtigen Methoden zur Beschreibung und zum Vergleich von Zahnformen weisen eine Reihe von Unzulänglichkeiten auf, die zu Ungenauig-keiten und Fehlinterpretationen führen. Es wird ein auf der Koordinatenin-formation beruhendes Verfahren beschrieben. Dabei wird die Stereomikro-photographie von Zahnkronen zur Ermittlung der Koordinaten von bis zu 600 Punkten auf der Zahnoberfläche angewendet. Die mathematische Oberfläche wird mit Hilfe der Methode der kleinsten Quadrate bestmöglich den gegebenen Koordinaten angepasst und durch Oberflächentrendanalyse überprüft. Die Ergebnisse zeigen, dass es sich um ein brauchbares Verfahren zur Beschreibung komplexer Formen handelt, obwohl es einige Probleme gibt, die den Vergleich erschweren.
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    The @photogrammetric record 8 (1974), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Book Reviewed in this article:TERRAIN EVALUATION. By C. W. Mitchell.ENVIRONMENTAL REMOTE SENSING: APPLICATIONS AND ACHIEVEMENTS. By E. C. Barrett and L. F. Curtis.MULTILINGUAL DICTIONARY OF TECHNICAL TERMS IN CARTOGRAPHY. Compiled by the International Cartographic Association.THE EARTH FROM SPACE. By J. Bodechtel and H. G. Gierloff-Emden.CARTOGRAPHIC DESIGN AND PRODUCTION. By J. S. Keates.
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  • 31
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    The @photogrammetric record 8 (1974), S. 0 
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    Topics: Architecture, Civil Engineering, Surveying
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  • 32
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    The @photogrammetric record 8 (1974), S. 0 
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    Topics: Architecture, Civil Engineering, Surveying
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  • 33
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    The @photogrammetric record 7 (1973), S. 0 
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    Topics: Architecture, Civil Engineering, Surveying
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  • 34
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    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 4 (1964), S. 0 
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    Topics: Architecture, Civil Engineering, Surveying
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  • 35
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    The @photogrammetric record 4 (1964), S. 0 
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    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The author describes conventional methods of highway planning and explains at what points modern methods, involving photogrammetric and electronic computation techniques, can be applied with advantage. Detailed accounts are given of the photogrammetric measurement of cross-sections and of programmes for the computation of masses.
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  • 36
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    The @photogrammetric record 4 (1964), S. 0 
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    Topics: Architecture, Civil Engineering, Surveying
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  • 37
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    The @photogrammetric record 4 (1964), S. 0 
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    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: A Leica camera on an indexing head was used to obtain photographic panoramas from three stations on a mountaineering expedition to Lahul in 1958. The field calibration of the camera presented some problems and various methods of calculating the focal length were investigated; a more convenient form of the Hotine method was derived. A map of the area at a scale of 1:50,000 was plotted from the photographs. The authors conclude that a good 35-mm. camera has some advantages over a plane table for exploration mapping.
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    The @photogrammetric record 4 (1964), S. 0 
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    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: This paper discusses the principal changes made to the Thompson- Watts plotter Model 1 as a result of experience gained with that instrument under test and in production. Some test results with the new instrument, Model 2, are given at the end of the paper. The opportunity is also taken to describe the variable magnification system of the instrument, not changed from Model 1.
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  • 39
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    The @photogrammetric record 8 (1974), S. 0 
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    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: In recent years analytical aerial triangulation in the Royal Australian Survey Corps has evolved to an advanced stage. Current procedures are described and future possibilities explored.〈section xml:id="abs1-2"〉〈title type="main"〉Résumé Ces dernières années les techniques d'aerotriangulation analytique, dans le Royal Australian Survey Corps ont beaucoup progressé. On décrit les méthodes employées et on fait quelques prospective.〈section xml:id="abs1-3"〉〈title type="main"〉Zusammensfassung In den letzten Jahren hat die analytische Aerotriangulation beim Royal Australian Survey Corps einen bedeutenden Stand ereicht. Die gegenwärtigen Technologien werden beschrieben und künftige Möglichkeiten untersucht.
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  • 40
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    The @photogrammetric record 4 (1963), S. 0 
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    The @photogrammetric record 7 (1973), S. 0 
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    Notes: The authors describe the photogrammetric procedures involved in the production of 1 : 50 000 scale mapping within the Directorate of Overseas Surveys, making specific reference to a project in Ethiopia.
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    Notes: The paper reviews the status of the optical transfer function (OTF) as a potential standard method for measuring the definition of photogrammetric camera lenses. The nature of the OTF and its relation to resolving power are explained. The limited success in obtaining agreement in international comparisons of OTF measurement and the programme of the Scientific Instrument Research Association group research project on the O TFare summarised. Some of the difficulties envisaged in applying the OTF as an ISP standard are discussed.
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    Notes: Orthophotomaps at 1 : 2500 scale, contoured at 1 m vertical intervals, have been produced for an area of 52 km2 from 1 : 10 000 scale photography especially flown for the project. Planimetric and height information on published Ordnance Survey 1 : 2500 scale maps was used as control for the aerial triangulation on which the orthophotomapping was based.
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    Notes: The paper describes a method for the automatic determination of height profiles in the stereomodel. The model is scanned automatically in epipolar planes. The photographic densities are recorded. The density values are correlated, either on or off line, to obtain the height profiles. The method was developed for the analytical plotter but can be applied to other photogrammetric instruments.
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    Notes: Experiments are described which compare point transfer from one photograph to another by stereoscopic and non-stereoscopic procedures. It is shown that, whereas it may be possible to achieve very high accuracies by both methods, the former method is more dependent for its accuracy on a high observer skill and is also more prone to occasional mistakes in identification.
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    Notes: Methods and results of practical applications of block adjustment by independent model cadastral surveys are described. The wider implications of the results are assessed in conjunction with current research trends in the adjustment of extremely large blocks for small scale mapping and in the use of the bundle adjustment method.
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    Notes: Digitising from a photogrammetric instrument can be controlled by a unit specially designed for this purpose, or by a digital control computer. In the latter case, the digitising system is more flexible since alterations and additions to the real-time programs can easily be made to effect different digitising applications. The control computer can also be used in processing the digitised data.The use of such digital control in photogrammetry is as yet limited. The reasons are examined. The characteristics and real-time requirements of a computer controlled digitising system are stated. Different digitising and recording modes, identification numbers and editing arrangements are then given to illustrate the flexibility and limitations of such a system.
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    Notes: The article discusses a general classification system applicable to digital ground models (D.G.M.) as used in highway design. Examples of the various categories are given, together with details of some advantages and disadvantages. The place of the D.G.M. in the highway design system is described in conjunction with traditional methods. The relationship between accuracy, density and economy of D.G.M. systems is examined. Finally an experiment is described which investigates the accuracy of various D.G.M. systems; it is being conducted by the Transport and Road Research Laboratory.
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    Notes: Book reviews in this article:OPTIMIZATION TECHNIQUES IN LENS DESIGN. By T. H. Jamieson.ADJUSTMENT BY LEAST SQUARES IN GEODESY AND PHOTOGRAM-METRY. By R. A. Hirvonen.AERIAL PHOTO-ECOLOGY. By J. A. Howard.PROCEEDINGS OF THE ISP COMMISSION IV SYMPOSIUM 1970. Editor J. Kure.
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    Notes: The use of aerial photography for hydrographic requirements is discussed, with particular reference to current circulation in an all water area. The paper examines the criteria and limitations imposed by an environment which is alien to normal topographic photogrammetry.
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    Notes: The paper describes an experiment using three different methods for the production of control for topographic mapping from super-wide angle photography. The result showed that aerial triangulation by independent models observed on a Wild A9 would show economic advantages in cartographic effort required, control requirements, and accuracy attained in contouring. The experiment also indicated that great benefit in heighting accuracy is derived from the addition of tie strips flown at right angles to the main photographic cover at a suitable interval and that heights supplied by airborne profile recorder are not sufficiently accurate to be economically advantageous where close interval contours are a requirement.
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    Notes: The colour photograph requirements of the photogrammetrist and the photo-interpreter are not always compatible. The author puts forward suggestions for improving the quality and reducing the cost of photography for interpretation purposes, based on the use of 70 mm film cameras. He found supporting evidence for this point of view during his visit to the United States as the result of the award of a Winston Churchill Fellowship in 1969.
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    Notes: Book reviews in this article:INTRODUCTION TO THE ALGEBRA OF MATRICES WITH SOME APPLICATIONS. By E. H. Thompson.BIBLIOGRAPHIE DES SCHRIFTTUMS AUF DEM GEBIET DER FORSTLICHEN LUFTBILDAUSWERTUNG 1887–1968. By G. Hildebrandt.INFRARED SYSTEM ENGINEERING. By R. D. Hudson.ELEMENTARY SURVEYING. By R. C. Brinker.REFERENCE GUIDE OUTLINE: SPECIFICATIONS FOR AERIAL SURVEYS AND MAPPING BY PHOTOGRAMMETRIC METHODS FOR HIGHWAYS.INTERNATIONAL YEARBOOK OF CARTOGRAPHY (VOL. VIII, 1968). Editor K. Frenzel.MODERN MAPS AND ATLASES. By C. B. M. LOCK.USE OF STRIPS CONNECTED TO BLOCKS FOR LARGE SCALE MAPPING. Results of Experimental Research Organized by Commission B of the O.E.E.P.E. from 1959 to 1966. By M. Cunietti.PRINCIPLES OF HOLOGRAPHY. By H. M. Smith.LA PHOTOGRAMMÉTRIE DES PLANS TOPOGRAPHIQUES ET PARCEL-LAIRES. By B. DUBUISSON.
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    Notes: This paper is divided into two parts: the first discusses the practical navigation techniques evolved for air survey, and the second deals with the associated techniques of ground plotting and flight-line recovery. Both parts of the paper have a geophysical bias since it is in this field that most experience has been gained, but the basic principles apply equally to photographic survey.
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    Notes: Calculated precision turns can be valuable as an aid to visual navigation at all scales and under all conditions of air survey navigation. The turns can be performed either at a given rate of turn or at a given angle of bank, and a slide rule has been developed at the International Training Centre for Aerial Survey, Delft, on which the necessary calculations for either case can be performed quickly and easily. The accuracy of location aimed at is such that the threshold of the new run presents an angle-off of not more than 3° on the completion of the turn. Examples show that this can be achieved in normal practice.
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    Notes: Recent developments in stereoscopy are reviewed, and their relevance to photogrammetry discussed.
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    Notes: Book reviews in this article: ELEMENTARY PHOTOGRAMMETRY. By D. R. Crone. INTERNATIONAL YEARBOOK OF CARTOGRAPHY (Vol. III, 1963). Editor, Eduard Imhof.
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    Notes: The author describes the responsibilities of the forester both for the production of timber and the preservation of natural resources, and shows how aerial photographs can assist in supplying the information required for organising the management of forest areas. On limited experience with infrared and colour films, the author compares them with panchromatic film for aerial photography of forest country; he considers that in most cases good definition is the most desirable quality in such photographs, although special contrast effects may be useful for particular purposes.
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    Notes: A brief description is given of the history of the stereocomparator, followed by a comparison of the major features of five modern instruments: the Wild STK 1, Nistri TA 3 and TA 3/A, S.O.M., Zeiss PSK 1 and Hilger and Watts stereocomparators. Special attention is paid to the production model of the Hilger and Watts stereocomparator, which differs in several important respects from the prototype.
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    Notes: Three unrelated matters are discussed. Firstly, the recent rapid advances in the application of precision engineering, electronics and digital computers to photogrammetric surveying operations are shown to be likely to result in a change of emphasis; from the need for great skill in making each particular map, to the need for even greater skill in making machines which, once made, will make many maps, largely automatically. This in turn is likely to have far-reaching effects on the type and training of persons employed in the profession. Secondly, an example is quoted which suggests that the value of photogrammetric methods, as an aid to the work of professions other than land surveying, is not sufficiently recognised by the teaching faculties of some of our universities. Ways and means of improving the situation are considered. Thirdly, after a brief historical survey of the birth and growth of the Photogrammetric Record, arguments for and against some possible changes in editorial policy are stated and certain conclusions reached.
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    Notes: Book reviews in this article:GEODESY. By Brigadier G. Bomford.INTERNATIONAL YEAR BOOK OF CARTOGRAPHY (Vol. II, 1962). Editor, Eduard Imhof.MODERN COMPUTING METHODS. National Physical Laboratory: Notes on Applied Science.SCIENTIFIC PHOTOGRAPHY. Editor, H. Sauvenier.
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    Notes: The Stereomat System has been adapted to a modified Wild B8 Aviograph Stereoplotter. A brief description is given of the new instrument and the principles employed.
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    Notes: The salient features of a method of analytical triangulation operating directly on single photographs are described, and the close analogy with geodetic triangulation computation is demonstrated.Any combination of photographs, whether in stereo pairs, stereo triples, strips, sub-blocks or blocks, is handled by forming the set of observation equations for each individual photograph in turn, and then taking all these sets together and solving them simultaneously by the method of least squares.Special procedures for dealing with very large numbers of variables are discussed, and certain applications of the method are indicated.
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    The @journal of eukaryotic microbiology 9 (1962), S. 0 
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    Topics: Biology
    Notes: SYNOPSIS. A chemically defined culture medium has been developed for the soil amoeba Hartmannella rhysodes Singh which contains the minimum essential organic requirements for growth. The medium consists of 7 amino acids, 3 vitamins, a carbon source (e.g. glucose) and inorganic salts.
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    Notes: SYNOPSIS. A mutant strain of Astasia longa utilized glucose for growth whereas the parent (J) strain did not. The optimal pH for growth of the mutant with glucose (sole carbon source) was near neutrality; the optimal glucose concentration 0.02 M. Cell-free extracts or cell homogenates produced C14O2 when incubated in the presence of C14-labeled glucose. On the other hand, after incubation with C14-labeled glucose, intact parent cells and their respiratory CO2 showed no radioactivity while the mutant-strain cells and CO2 produced were active. Dissimilation of glucose-1-C14 and glucose-6-C14 yielded the same amount of radioactivity in metabolic CO2 in cell-free extracts of both strains. Of five enzymes assayed, hexokinase, phosphoglucomutase, and lactic dehydrogenase were present whereas glucose-6-PO4 dehydrogenase and glucose dehydrogenase were absent in cell homogenates of both strains. Presumably these two strains of A. longa differ in permeability of the plasma membrane. Further tracer and enzyme studies indicated that the Embden-Meyerhof scheme is the principal pathway of glucose catabolism; the hexose mono-phosphate shunt and the direct oxidative pathway were either not operating or quantitatively insignificant.
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    Topics: Biology
    Notes: SYNOPSIS. By means of electron microscopy, a study has been made of the fine structure of the macrogametocytes, microgametocytes and oocysts of Eimeria perforans from the intestine of the wild rabbit (Oryctolagus cuniculus). The parasites lie in a vacuole within the host cell. The surface of the gametocytes is not plain, but displays irregular protrusions. A large intranuclear body can be detected within the macrogametocytes. Similar structures are also found within the cytoplasm. Within the latter there exists a large spread out reticulum, the channels and vesicles of which concentrate especially close to the nuclear membrane. Tubuli are seen in the numerous mitochondria, which often have a dumb-bell shape.In most of the gametocytes irregular, strongly osmiophilic lipid inclusions are observed, which always are surrounded by the endoplasmic reticulum. Strange folded ovoid bodies are found within the cytoplasm of the oocysts. Nothing can be told with certainty of their nature and function. Probably they represent specific storage bodies.
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  • 89
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Tritrichomonas foetus survived much better on extended storage at -95 than at -28d̀C following slow freezing in the presence of 1.0 M glycerol. There was no significant difference between these temperatures in survival up to 8 days, but thereafter the protozoa continued to die off slowly at -28d̀, whereas their numbers remained essentially constant at -95d̀ for 128 to 256 days. The trichomonads' motility was much better after storage at -95d̀ than after storage at -28d̀, and fresh cultures could be initiated from the former much more readily.Other constituents of the suspending medium besides glycerol affect the survival of the protozoa upon freezing. Survival was much better when the protozoa were frozen in the original Diamond's trypticase-yeast extract-maltose-cysteine-ascorbic acid-serum medium in which they had been grown than when they were frozen in physiological salt solution or in fresh Diamond's medium. There was no significant difference between survival in the latter two suspending media. The speed and time of centrifugation needed to remove the trichomonads from the medium in which they had been grown had no effect on their survival upon subsequent freezing. Presumably some product or products of the trichomonads' metabolism have an additional protective action which supplements that of glycerol.When frozen in the original Diamond's medium in which they had been grown plus 1.0 M glycerol, an average of 15% of the trichomonads were alive after 128 days' storage at -28d̀ and an average of 38% were alive at -95d̀C. When frozen in physiological salt solution plus 1.0 M glycerol, these percentages were 8% and 12% respectively.
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  • 90
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. When Spathidium spathula was exposed to X-ray doses ranging from 1–25 kr this animal was found to be more radiosensitive than any ciliate previously reported. A dose of 1 kr is sufficient to increase the time of the first generation from 5 to about 5 1/2 hours. A dose of 4 kr is enough to approximately double the generation time. Bacteria in the medium during irradiation do not protect the ciliate against injury. Animals irradiated as dry cysts are only slightly more resistant than vegetative forms, requiring 10 kr to double the generation time. One day after exposure, irradiated lines are uniformly poor in growth rate (0–2 daily divisions), but later a bimodal response is noticed, some lines remaining poor and others recovering. Within 24 hours after treatment, a number of irradiated animals show structural abnormalities and are greatly increased in size. The experiments have not determined the reason for the high sensitivity of Spathidium but have made certain alternatives unlikely.
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  • 91
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. When Tetrahymena suspended in water were given increasing doses of radiation, oxygen consumption decreased with increasing dose, reaching 60–90% at 600,000 r. Cells irradiated in 0.07 M phosphate buffer, pH 7.4, showed no significant decrease in oxygen consumption even at 600,000 r. The decrease in respiration observed on irradiation of Tetrahymena pyriformis W in water with 300,000 r of X-radiation was prevented by addition of pyruvate or acetate during or immediately after irradiation. Pyruvate stimulated the respiration of the X-irradiated cells, particularly at 10 and 60 min post-irradiation.Lactate markedly stimulated the respiration of control suspensions of Tetrahymena cells and oxidation of lactate by cells irradiated with 300,000 r was increased by 20 to 100%, depending on the concentration of lactate and the time after irradiation. Pyruvate was considerably more effective than lactate in increasing O2 uptake of X-irradiated cells, particularly at 10 min post-irradiation. Thioctic acid affected neither the respiration of control or X-irradiated Tetrahymena nor the oxidation of pyruvate.The growth lag of Tetrahymena increased proportionately with increasing radiation dose; no cells survived 600,000 r. The presence of metabolites during irradiation did not affect the lag period or subsequent growth rates. The effects observed were discussed in terms of an alteration of the permeability of Tetrahymena after irradiation.
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  • 92
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. A full account of the nuclear changes during binary fission and conjugation in a local race of Blepharisma is presented in this paper. The macronucleus consists of 2 nodes connected by a strand. Number of micronuclei varies from 6 to 18. During binary fission, condensation of macronucleus is followed by elongation and thinning of the middle region which finally breaks. Daughter nuclei later attain the typical vegetative form. Notably, during binary fission some micronuclei appear to complete their mitoses by the time the macronucleus attains the condensed form, while others lag behind and exhibit practically every stage of mitosis.During conjugation, from 6 to 10 micronuclei undergo the first pregamic division, the same number through the second division, and two products of the second division take part in the third division. The rest degenerate. Division products of the nuclei in the paraoral region take part in synkaryon formation. The synkaryon undergoes either 2 or 3 divisions. In the former case, of the 4 products, 2 become the macronuclear anlagen, one the micronucleus and the fourth degenerates. In the latter case, of the 8 products, 3 to 4 become the macronuclear anlagen and the rest become micronuclei. Chromatin elimination has been observed during the division of the macronuclear anlage, followed by an extra metagamic fission of the cell.Comparison with two other races from India and an American race indicates considerable diversity in the structure and behaviour of the nuclear apparatus in different races of Blepharisma undulans.
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  • 93
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Females of Heterakis gallinae were separated on the basis of their capacity to transmit the protozoan parasite Histomonas meleagridis. Sections of worms, capable of transmitting the protozoon, revealed the organism in both males and females as well as in the eggs. Infected male worms contained histomonads in the gut wall and the wall and lumen of the reproductive system. Female worms infected with H. meleagridis showed the organisms throughout the reproductive system. Histomonads, found in uterine eggs possessing shells, had a larger nucleus and reduced cytoplasm.Because of the presence of the protozoon among the sperm in the male reproductive system, it is believed the organism can be transmitted to female worms through copulation. The cycle in the worms also supports the assumption that H. meleagridis was originally a parasite of the worm.
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  • 94
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    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Speculations regarding the mode of transmission of monocystid parasites of earthworms over a period of more than 100 years have never been tested experimentally under controlled conditions. In order to do so a stock of infectionfree Eisenia foetida (Sav.) was raised from cocoons and experimental infections were induced in this host using sporocysts of the gregarine parasites Apolocystis elongata Phillips & Mackinnon 1946, and Nematocystis elmassiani (Hesse, 1909). Experimental infections were obtained by feeding to uninfected worms sporocysts obtained directly from infected host worms. This proved that the intervention of a vector is not a necessary condition of infection. Infections could not be induced by injecting sporocysts through the body wall into the body cavity. Infections are thus probably acquired in nature by the ingestion of sporocysts. Sporocysts do not leave the body of the host by being passed from coelom to lumen of the gut, nor do they pass directly to the exterior through apertures of the body wall. There was no evidence of parasitic autotomy. It is therefore concluded that death and decay of the host is the normal method of dissemination of sporocysts. Sporocysts were not infective after drying in air for three weeks. Other sporocysts lost potency after storage in moist conditions for several months. Infections involving the organisms specified were sporadic and unpredictable; modifying factors, such as variations in host susceptibility and latency in infection, appeared to be operating.
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  • 95
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    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. By an automatic electronic technique—the Flying Spot Particle Resolver—the effect of a wide range of concentrations of vitamin B12 on the size and growth of the B12-dependent Euglena gracilis was studied. Rate of cell growth was directly proportional, and cell size inversely proportional, to B12 concentration. Gross B12 depletion resulted in gigantism and prolongation of generation times.
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  • 96
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Previously, the reproduction-inhibiting effects of ablastin could only be shown in vivo. The present report describes techniques for the in vitro demonstration and titration of this antibody. With a medium composed of Hanks' balanced salt solution, rat serum, lactalbumin hydrolysate, yeast extract and rat blood lysate, blood stream forms of Trypanosoma lewisi can be grown for approximately 24 hours at 37d̀C. Starting with the medium containing normal rat serum and inoculated with adult (inhibited) trypanosomes from infected rat blood, 50% or more of the parasites are in various stages of division after incubation overnight. Under similar conditions with ablastic rat serum, the parasites do not reproduce but remain as adults. If the medium is inoculated with reproducing trypanosomes from the blood, parasites in the presence of normal serum continue to reproduce, whereas those exposed to ablastin are almost completely converted to adult, non-reproducing forms. Similar results are obtained when the immune sera used are first adsorbed with living parasites to remove all trypanocidal antibodies. Ablastic serum inactivated at 56d̀C for 20 minutes does not lose its inhibitory activity indicating that ablastin is not complement dependent, and parasites grown on media at room temperature are not affected by the antibody suggesting that basic antigenic differences exist between blood stream forms at 37d̀C and culture forms at room temperature. Studies of the conversion of blood stream forms to culture forms indicate that the critical temperature range for the conversion lies between 28d̀ and 30d̀C. The significance of these results is discussed, and possible applications of the techniques described to studies of the mechanism of ablastic action are considered.
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  • 97
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Normal swimming behavior of Paramecium multimicronucleatum in an essential mineral element solution with 0.0002 M calcium changed into continuous avoidance reactions upon replacement by equimolar strontium; equimolar barium produced a less pronounced similar effect. In equivalent pure SrCl2 and BaCl2 solutions, avoidance reactions were less frequent than in the balanced solutions. P. multimicronucleatum inoculated into autoclaved calcium- or strontium-containing cultures of the alga Protosiphon botryoides (ultimate food source) multiplied greatly and essentially equally, but died in barium. Accelerated avoidance reaction rates were observed in strontium up to and at 32 days after inoculation.
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  • 98
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    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. A previous study of parasites from relapsed P. berghei infections of mice indicated that the behavior of the relapse parasites differed from that of their parent strain. Experiments have been performed comparing the behavior of relapse and parent parasite infections in mice under two sets of conditions. In one group of experiments the behavior after antimalarial treatments, designed to result in chronic or latent states of infection, was tested. In all, 8 relapse strains were tested against their parent strains in six different experiments which employed 536 mice. It was observed that the mice infected with the relapse strains had a statistically significant greater mortality after the treatments than did mice infected with parent strains. This difference was observed regardless of how the relapse strain had been previously treated, or of what treatment was used in the experiments. In a second group of experiments, the behavior of infections with relapse and parent parasites was compared in normal mice. Five relapse strains were compared to their parent strains in a total of 5 experiments using 356 mice. It was observed that the mean survival time of mice infected with relapse strains was significantly greater than that of mice infected with the parent strains. It is not known whether this apparent difference in the behavior of relapse and parent parasites is related to the mechanism for relapse of P. berghei infections, or is merely a characteristic of parasites that had survived in an immune host.
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  • 99
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 8 (1961), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The rate of ingestion of cytoplasm from its prey ciliate by Podophrya collini shows a maximum at 18°C. The rate of ingestion is the same for all active tentacles during the feeding period. Calculation of the amount of cytoplasm ingested from rate measurement and from dimensional alterations of ciliate and suctorian during feeding indicates conformity to the hypothesis that the motive force for ingestion results from integrated activity of the total cell and not from autonomous activity of the tentacles alone. The estimated motive force approximates 0.2 atmosphere. Data is presented to indicate that energy to maintain this motive force is derived from the normal oxidative metabolism of the suctorian.
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  • 100
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    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 8 (1961), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Hepatozoon procyonis, n. sp., is described from the raccoon Procyon lotor from southwestern Georgia. Mature gametocytes in monocytes in blood smears and schizocysts and developing gametocytes in sections of heart tissue were observed and described. A Hepatozoon was also found in the fox squirrel Sciurus niger.
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