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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    British journal of management 9 (1998), S. 0 
    ISSN: 1467-8551
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of management 6 (1995), S. 0 
    ISSN: 1467-8551
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: This paper sets out to review past and current research in operations management, and to explore current and future issues facing the area. It reviews the history of the area, and the patterns of research content and type. It reviews the evolution of lean production connecting the work of Taylor to its development at Toyota, and uses this to propose three key elements of operations management in the 1990s, namely, the core, interfaces and convergence. Current issues relating to research in operations management are explored and it is argued that there is a need for aggressive research agendas. Finally, possible future agendas for the area are explored.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    R & D management 14 (1984), S. 0 
    ISSN: 1467-9310
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Researchers into the stimuli of the innovation process have consistently found that the number of innovations stimulated by need pull substantially exceeds those stimulated by technology push. The research reported in this article indicates that when the innovations were divided into user and supplier active innovations, user active innovations were found to be predominantly stimulated by technology push. A possible explanation of this phenomenon is offered.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 196 (1993), S. 1496-1503 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Inorganic and Nuclear Chemistry Letters 15 (1979), S. 149-153 
    ISSN: 0020-1650
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Steroid Biochemistry 19 (1983), S. 49 
    ISSN: 0022-4731
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Applied Surface Science 67 (1993), S. 142-146 
    ISSN: 0169-4332
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0878
    Keywords: Biogenesis of mitochondria ; Nucleus ; Spermatids ; Eisenia foetida (Annelidae)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Elektronenmikroskopische Befunde sprechen für die de novo — Biogenese von Mitochondrien in den Spermatiden des Regenwurms (Eisenia foetida) zu Beginn der Spermiohistogenese. Es lassen sich zwei Entstehungsorte und -arten unterscheiden: An der Kernmembran — und zwar im Bereich des prospektiven Schwanzendes — bilden sich die künftigen sechs Mittelstücksmitochondrien aus, im Grundcytoplasmaohne erkennbare Bevorzugung bestimmter Regionen— differenzieren sich die übrigen Mitochondrien. Die Mitochondrienmatrix entsteht offenbar unter Mitwirkung eines granulären, aus dem Kernraum in das Cytoplasma gelangenden Materials. Hierbei löst sich die Kernmembran temporär und lokal begrenzt auf oder zerfällt in Fragmente. In einer diffus begrenzten, relativ elektronendichten Matrix, der Mitochondrien-„Anlage“, kommt es zur Neubildung von Mitochondrienmembranen, die eine Substruktur aus 45–60 Å messenden Untereinheiten erkennen lassen. Wider Erwarten treten zunächst die Membranen der Cristae und erst anschließend die der Hülle in Erscheinung. Eine Membransynthese aus einem vorgegebenen „rimer“ wird diskutiert.
    Notes: Summary Electronmicroscopical observations on spermatids of Eisenia foetida demonstrate a de novo biogenesis of mitochondria in cytoplasm. There are two kinds of differentiation: The later mitochondria of the middlepiece originate in the prospective tailside attached to the outer nuclear membrane; the other mitochondria differentiate in the cytoplasm without obvious preference of particular regions. The mitochondrial matrix is formed in connection with a granular material, which is transferred from the nucleus to the cytoplasm. At the places of transference the nuclear membrane breaks up into fragments. In a matrix which is diffused in the beginning new membranes originate, in which a substructure of subunits of 45–60 Å can be discerned. The outer mitochondrial membrane is built up after the cristae. A synthesis of membrane in connection with a given “primer” is discussed.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 115 (1971), S. 69-78 
    ISSN: 1432-0878
    Keywords: Microtubules ; Endoplasmic reticulum ; Lymnea stagnalis L. (Pulmonata)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung In Zisternen des granulären ER der Leydigschen Bindegewebszellen von Lymnea stagnalis L. finden sich Bündel relativ dickwandiger, drahtartig wirkender Mikrotubuli, deren Durchmesser 250 Å beträgt. Ihre Wand besteht aus 12 zirkulär angeordneten Untereinheiten, die in der Längsrichtung der Röhrchen als ca. 30 Å dicke, etwas unregelmäßig gestaltete Querbänder in Erscheinung treten. Es wird vermutet, daß die beschriebenen mikrotubulären Strukturen nur temporär ausgebildete Substrate geordneter Proteinkomplexe darstellen, die als Zwischenprodukte eines von den Leydigschen Zellen synthetisierten Materials aufzufassen sind.
    Notes: Summary In the cisternae of granular endoplasmic reticulum of connective tissue cells of Lymnea stagnalis L. (so called Leydig cells) bundles of thread-like microtubules are present. One microtubule has a diameter of about 250 Å. The wall consists of 12 circular arranged subunits which, tangentially sectioned, are composed of close packed, diskshaped elements. It is assumed that the microtubules exhibit an intermediate stage of cellular synthesis, showing temporarily the pattern of a structural protein.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0878
    Keywords: Cardiac muscle cells ; Trabeculae carneae ; Fibrillar pattern ; Mouse ; Rat ; Rabbit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The cardiac muscle fibers in the trabeculae carneae of mice, rats, and rabbits show a special arrangement of densely interwoven myofibrils. They cross at various angles; however, a preferred orientation of the fibrils cannot be discerned. It is suggested that due to this arrangement the myocytes of trabeculae are not able to contract to the same extent as ventricular myocytes, but thereby gain a high rigidity during contraction. Hence, they may play a principal role as “guiding ridges” for the flow of blood, thereby improving hemodynamics.
    Type of Medium: Electronic Resource
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