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  • Springer  (16)
  • American Institute of Physics  (4)
  • Blackwell Publishing Ltd
  • 2000-2004  (18)
  • 1950-1954  (2)
  • 1940-1944  (1)
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Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Strategic Manufacturing Planning Systems and Their Linkage to Planning System Success (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Decision sciences 33 (2002), S. 0 
    Details
    ISSN: 1540-5915
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Academics and practitioners alike are focusing more attention on manufacturing strategy after having recognized the important role it plays in shaping the success of industrial firms. Even though research in this area has increased in the last decade, the focus of much of that work has been on the content rather than the process of the manufacturing strategy. Consequently, this study attempts to understand the important elements of the strategic manufacturing planning process and its effectiveness. Borrowing from the extant literature in the fields of strategic management and information systems, we propose a research model that relates strategic manufacturing planning system design to planning system success. Using structured questionnaires, empirical data is collected from over 200 manufacturing executives to test the model hypotheses. Planning process in manufacturing was found to be a bottom-up approach from a corporate or business perspective, which differs from the top-down planning process prevalent in strategic information systems planning process. Findings also indicate that greater planning system success in manufacturing is associated with a planning system that combines some “rational” elements (formality, comprehensiveness, control focus, longer horizon) with others that lend adaptability (wider participation and more intense interaction). But the strategic manufacturing planning system is more than just a collection of independent planning characteristics. Instead, it can be viewed as a gestalt planning system whereby planning characteristics move together in affecting overall planning system success.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-5915.2002.tb01634.x
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  • 2
    Electronic Resource
    Electronic Resource
    Triple Differencing with Kalman Filtering: Making It Work (2000)
    Springer
    GPS solutions 3 (2000), S. 58-64 
    Details
    ISSN: 1521-1886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Notes: Since global positioning system (GPS) measurements are ranges (code) and biased ranges (carrier), it seems natural to model them as ranges and determine the biases. This is particularly compelling since the double-difference range biases turn out to be integers. At some level there is also an elegance, perhaps therefore a naturalness, to modeling the carrier measurements as time differences of double differences. While something is lost something else is gained. Here we apply the proven delayed-state Kalman filter to processing carrier phase measurements as triple differences. In practice we process these triple differences along with double-difference code measurements. We also treat the measurement error as, mostly, Gauss-Markov states to be determined. Many of the details are discussed and experimental results are included. These demonstrate that excellent performance can be obtained if the Kalman filter modeling is done carefully. © 2000 John Wiley & Sons, Inc.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00012805
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  • 3
    Electronic Resource
    Electronic Resource
    Nested Quantum Search and NP-Hard Problems (2000)
    Springer
    Applicable algebra in engineering, communication and computing 10 (2000), S. 311-338 
    Details
    ISSN: 1432-0622
    Keywords: Key words: Quantum computation, Quantum algorithms, Combinatorial search problems, NP-hard problems.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics , Technology
    Notes: Abstract. A quantum algorithm is known that solves an unstructured search problem in a number of iterations of order , where d is the dimension of the search space, whereas any classical algorithm necessarily scales as O(d). It is shown here that an improved quantum search algorithm can be devised that exploits the structure of a tree search problem by nesting this standard search algorithm. The number of iterations required to find the solution of an average instance of a constraint satisfaction problem scales as , with a constant α 〈 1 depending on the nesting depth and the problem considered. When applying a single nesting level to a problem with constraints of size 2 such as the graph coloring problem, this constant α is estimated to be around 0.62 for average instances of maximum difficulty. This corresponds to a square-root speedup over a classical nested search algorithm, of which our presented algorithm is the quantum counterpart.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002000050134
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  • 4
    Electronic Resource
    Electronic Resource
    A study of drug utilisation and cost of treatment in patients hospitalised with unstable angina (2000)
    Springer
    European journal of clinical pharmacology 56 (2000), S. 755-761 
    Details
    ISSN: 1432-1041
    Keywords: Unstable angina Drug utilisation Developing countries
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract. Objective: The current study was designed to investigate drug utilisation in the management of unstable angina in India and to calculate the costs incurred by patients in the treatment of a single episode of unstable angina. Methods: We conducted a prescription survey to examine the use of antianginal drugs in patients with unstable angina in a tertiary care Indian hospital. The use of concurrent medications such as antidiabetic, antihypertensive and lipid-lowering agents was also examined. Data on the cost of treatment, investigations, income, and family size were collected from the case histories or direct interviews with the patients/relatives. Results: A total of 336 consecutive prescriptions were evaluated. Aspirin was the most frequently prescribed drug (98%) followed by nitroglycerin infusion (90%) and enoxaparin (52%). One of the heparins was used by 89% of all patients and β-blockers by up to 62% of the patients. Besides antianginals, antihypertensive (49%) and antidiabetic (16%) drugs were commonly coadministered. The mean (±SD) cost of treatment of a single episode of unstable angina in the hospital was US $494 (±271) against an annual per capita income of US $245. The mean (±SD) cost incurred by the patients due to drugs alone during the hospital stay was US $70 (±18) and enoxaparin accounted for 60% of the expenditure due to drugs. Conclusions: The results of our study show that low-molecular-weight heparin, enoxaparin, is replacing unfractionated heparin in the treatment of unstable angina. In view of the use of costly new drugs, there is an urgent need for carrying out pharmacoeconomic analysis in developing countries as the treatment of a single episode of unstable angina imparts a considerable economic burden on the patient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002280000226
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  • 5
    Electronic Resource
    Electronic Resource
    SERCA pump isoform expression in endothelium of veins and arteries: Every endothelium is not the same (2000)
    Springer
    Molecular and cellular biochemistry 203 (2000), S. 11-15 
    Details
    ISSN: 1573-4919
    Keywords: coronary artery ; coronary vein ; aorta ; vena cava ; sarcoplasmic reticulum ; endoplasmic reticulum ; ATPase ; calcium pump ; smooth muscle ; ischemia-reperfusion ; signal transduction ; transport ; cardiovascular ; cDNA ; mRNA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Endothelium from rat aorta expresses sarco/endoplasmic reticulum Ca2+(SERCA) pump gene SERCA3 where as the smooth muscle expresses SERCA2. This has led to the postulate that vascular endothelium expresses SERCA3. To test this postulate, we examined the SERCA2 and SERCA3 mRNA expression in endothelium and smooth muscle dissected from coronary artery, coronary vein, aorta and vena cava of pig. Smooth muscle from all arteries and veins expressed only the SERCA2 mRNA. Endothelium from coronary artery, coronary vein and aorta expressed both SERCA2 and SERCA3 mRNA but the endothelium from vena cava did not express SERCA3 mRNA although it expressed SERCA2. These observations support the postulate that vascular endothelium expresses SERCA3 but the affirmation is equivocal because vena cava endothelium does not express SERCA3. (Mol Cell Biochem 000: 000-000, 1999)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007093516593
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  • 6
    Electronic Resource
    Electronic Resource
    Sarco/endoplasmic reticulum Ca2+-pump isoform SERCA3a is more resistant to superoxide damage than SERCA2b (2000)
    Springer
    Molecular and cellular biochemistry 203 (2000), S. 17-21 
    Details
    ISSN: 1573-4919
    Keywords: Free radicals ; Ca-Mg-ATPase ; ischaemia ; coronary artery ; immune-response
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Endo/sarcoplasmic reticulum (ER) Ca2+-pumps are important for cell survival and communication but they are inactivatedby reactive oxygen species (ROS).We have previously reported that the Ca2+-pump isoform SERCA3a is more resistant than SERCA2b to damage by peroxide. Since peroxide and superoxide differ in their redox potentials, we now report the effects of superoxide on the two Ca2+-pump isoforms. We isolated microsomes from HEK293 cells transiently transfected with SERCA2b or SERCA3a cDNA. We exposed these microsomes to superoxide which was generated using xanthine plus xanthine oxidase and catalase to prevent accumulation of peroxide due to superoxide dismutation. Superoxide damaged the Ca2+- transport activity of both isoforms but SERCA3a was damaged at higher concentrations of superoxide and upon longer periods of exposures than was SERCA2b. Thus the SERCA3a isoform is more resistant than SERCA2b to inactivation by both superoxide and peroxide. (Mol Cell Biochem 000: 000-000, 1999)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007053802481
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  • 7
    Electronic Resource
    Electronic Resource
    Characteristics of the College Geometry Course for Preservice Secondary Teachers (2000)
    Springer
    Journal of mathematics teacher education 3 (2000), S. 47-67 
    Details
    ISSN: 1573-1820
    Keywords: geometry ; teacher preparation ; college mathematics courses ; instructional practices ; assessment practices
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Based on 30 syllabi and 108 questionnaire responsesfrom randomly selected U.S. colleges and universities,college geometry courses were analyzed with respect tocontent, pedagogy, and assessment. About 40% of thecourses start with elementary axioms and emphasizeEuclidean geometry or a mix of Euclidean andnon-Euclidean geometry; 23% employ a survey approach;and 20% employ an analytic or projective geometryapproach. In about 63% of the courses, the instructorlectures most or all of the time; in 36% of thecourses a substantial amount of class time is devotedto group work; and about 27% of the courses reflectnearly all the characteristics of good mathematicsteaching as defined by the NCTM Professional TeachingStandards. In most courses, in-class examinations,homework, and a final examination are the primaryevaluation tools; in about half of the courses atleast one alternative assessment contributes to thefinal grade. Common characteristics are evident butwide diversity exists also. A typical geometry coursedid not emerge from the data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009921628065
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  • 8
    Electronic Resource
    Electronic Resource
    Pulsed Anodic Anodisation of Porous Silicon Films (2000)
    Springer
    Journal of porous materials 7 (2000), S. 377-379 
    Details
    ISSN: 1573-4854
    Keywords: porous silicon ; photoluminescence ; pulse anodizing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Porous Silicon is conventionally made by dc anodisation of silicon. In this paper we have studied the luminescence of porous silicon made by pulsed anodisation as a function of duty cycle and HF concentration. Specifically we show for the first time that the luminescence can be tuned over a wide range in energy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009678819470
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  • 9
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    Novel approach to reducing stress-caused birefringence in polymers (2004)
    Springer
    Details
    Publication Date: 2004-02-01
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 10
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    Temperature Correction Methods in Calorimetry (1941)
    American Institute of Physics
    Details
    Publication Date: 1941-07-01
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
    Published by American Institute of Physics
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