132,513 research outputs found
Which Kind of Science Is Construction Management?
No full textIt is argued that the mainstream views on the nature of construction management are insufficient, and as one consequence of this, the relevance of construction management has been questioned. As a solution to this situation, construction management is suggested to be repositioned as a design science, rather than as an explanatory science. A historical consideration reveals that design science equals to one of the sciences proposed by Aristotle, however, the suggestion of Aristotle has been forgotten. Thus, there has been a long-standing neglect of the design science, which explains the present fragmentation of this field. It is argued that this redefinition of construction management will solve several problems plaguing this discipline, including the problem of relevance
Drivers for Innovation in Production Management
No full textThe aim of this paper is to examine the effectiveness of innovative programmes in construction. The term 'best practice' is commonly used in industry in to describe and disseminate cases where high levels of performance have been achieved. Several terminologies are used to describe this phenomenon, the best practice being the most widely used term. Best practices usually stimulate a desire in other companies to achieve similar levels of performance or gains that have been obtained by those best practice companies. This desire for better performance commonly triggers an innovation adoption programme by other companies. However, there are two kinds of drivers to innovation adoption: one is usually started by normative pressures applied by customers, suppliers, regulators or senior management. This type of adoption is called push-driven. On the other hand, there is a pull-driven innovation adoption decision, which is triggered strictly by an internal need associated with a performance gap. Based on this background this paper explores the generation, development and adoption of innovative programmes by industry
De Biasi-Lauri reduction for hardness of swapping colors
No full textWe make a recap of De Biasi-Lauri reduction for proving hardness of two problems on restoring corrupted colorings
Morphologic and functional correlates of synaptic pathology in the cathepsin D knockout mouse model of congenital neuronal ceroid lipofuscinosis
No full textMutations in the cathepsin D (CTSD) gene cause an aggressive neurodegenerative disease (congenital neuronal ceroid lipofuscinosis) that leads to early death. Recent evidence suggests that presynaptic abnormalities play a major role in the pathogenesis of CTSD deficiencies. To identify the early events that lead to synaptic alterations, we investigated synaptic ultrastructure and function in presymptomatic CTSD knockout (Ctsd) mice. Electron microscopy revealed that there were significantly greater numbers of readily releasable synaptic vesicles present in Ctsd mice than in wild-type control mice as early as postnatal day 16. The size of this synaptic vesicle pool continued to increase with disease progression in the hippocampus and thalamus of the Ctsd mice. Electrophysiology revealed a markedly decreased frequency of miniature excitatory postsynaptic currents (mEPSCs) with no effect on paired-pulse modulation of the evoked excitatory post synaptic potentials in the hippocampus of Ctsd mice. The reduced mEPSCs frequency was observed before the appearance of epilepsy or any morphologic sign of synaptic degeneration. Taken together, these data indicate that CTSD is required for normal synaptic function and that a failure in synaptic trafficking or recycling may bean early and important pathologic mechanism in Ctsd mice; these presynaptic abnormalities may initiate synaptic degeneration in advance of subsequent neuronal loss
Dialogue games : an approach to discourse analysis
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Linguistics and Philosophy, 1982.MICROFICHE COPY AVAILABLE IN ARCHIVES AND HUMANITIESVita.Bibliography: leaves 443-488.by Lauri Henrik Carlson.Ph.D
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Newspaper Week; Lauri Foster and Judy Womack
No full textIn Fort Worth during Newspaper Week, little girls sit on furniture made out of stereotype machines and wear hats made out of newspapers, while big girls are at their sewing machines turning out newspaper dresses for the Miss Star-Telegram contest. Lauri Foster, 5, is the daugher of Mr. and Mrs. D. B. Foster of 5741 Jane Anne in Haltom City, and Judy Womack, a Powers model, is a hostess at the Star-Telegram display at Seminary South Shopping Center. Fort Worth Star-Telegram Evening edition October 14, 1968.https://mavmatrix.uta.edu/specialcollections_startelegram1960s/6081/thumbnail.jp
Newspaper Week; Lauri Foster and Judy Womack
No full textIn Fort Worth during Newspaper Week, little girls sit on furniture made out of stereotype machines and wear hats made out of newspapers, while big girls are at their sewing machines turning out newspaper dresses for the Miss Star-Telegram contest. Lauri Foster, 5, is the daughter of Mr. and Mrs. D. B. Foster of 5741 Jane Anne in Haltom City, and Judy Womack, a Powers model, is a hostess at the Star-Telegram display at Seminary South Shopping Center. Fort Worth Star-Telegram Evening edition October 14, 1968.https://mavmatrix.uta.edu/specialcollections_startelegram1960s/6079/thumbnail.jp
Longevidad, fertilidad y fecundidad de Heilipus lauri Boheman (Coleoptera : Curculionidae : Molytinae) en condiciones de laboratorio.
No full textHeilipus lauri Boheman, especie endémica de México, causa daños que oscilan entre el 30 y el 60% en frutos
de aguacate (Persea americana Mill.) y está catalogada como plaga de importancia cuarentenaria. Cualquier
programa de Manejo Integrado de Plagas tiene como sustento el conocimiento de la biología básica de las
especies. La longevidad promedio de adultos de H. lauri, en laboratorio fue de 309.55±86.72 d; en los machos
su longevidad mayor alcanzó los 319.82±88.69 d y las hembras 299.29±86.13 d. El primer deceso ocurrió en
la semana 29, la mortalidad del 50% se registr´o en la semana 36 y finalmente en la semana 65 la mortalidad
fue del 100% de la población estudiada. Durante 56 semanas, 17 hembras ovipositaron 8482 huevos con un
promedio de 498.47±208.85 huevos/hembra y la fertilidad fue variable a lo largo del periodo de oviposición con
un 85.57±7.27 %
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