1,720,953 research outputs found
Analytical and Empirical Analyses of Treatment Optimization and Sequential Bargaining: Applications to Opioid Prescriptions and Real Estate Markets
No full textAnalytic approaches towards individual decision-making construct a significant portion
of the operations management literature. Following its weight in our profession, my doc-
toral studies are built upon decision-making problems surrounding two major contexts;
opioid prescriptions for pain management in healthcare and price negotiations in real es-
tate markets. These studies collaborated with co-authors are presented in this dissertation
over three separate chapters.
Clinical decisions for opioid prescribing are critical since the prescribing too little can
cause patients to suffer from pain whereas prescribing too much may lead to serious
drawbacks such as dependence, addition, overdose, and even death. A chapter in this dis-
sertation is reserved for a published manuscript collaborated with co-authors, in which,
mental trade-offs of clinicians for opioid prescribing decisions are captured in an analyt-
ical pain framework. The framework is flexible to capture both acute and chronic pain
cases, and yields a minimization objective in terms of opioid prescription duration com-
bining the total pain, total discomfort from adverse effects, and the risk of drug inefficacy
due to tolerance or increased sensitivity to pain. Despite non-convexity of the objective,
a closed-form optimal prescription amount is found. Analyses over the optimal solution
show that the role of adverse effects in prescribing decisions is as critical as that of the
pain level. Interestingly, we find that the optimal prescription duration is not necessarily
increasing with the recovery time. We show that not incorporating the risk of tolerance /
increased sensitivity leads to overprescribing. Clinicians’ beliefs on this risk can be cur-
tailed at patient handovers, thus leading to overprescribing. We also show overprescrib-
ing can be mitigated by adaptive treatments. Lastly, using real-life pain and opioid use
data from two sources, we estimate the timing of tolerance / increased pain sensitivity
and discuss the proximity of our model to clinical practice. This paper has a pain man-
agement framework that leads to tractable models. These models can potentially support
balanced opioid prescribing after their validation in a clinical setting. Then, they can
be helpful to policymakers in assessment of prescription policies and of the controversy
around over(under)prescribing.
The other two chapters of the dissertation are reserved for my doctoral studies on price
negotiations in real estate markets, both of which are collaborated with co-authors. The
mainstream adoption of online marketplaces allows large-scale collection of structured
back-and-forth (sequential) bargaining data. Obtaining such data from an online real-
estate marketplace company, we empirically analyze sequential price bargains for houses
between the company (institutional seller) and individual buyers. In each bargain, par-
ties (the seller and buyer) take turns to make concessions until one of them terminates the
bargain by accepting the other’s offer or by exiting. Our analyses of concessions and ter-
minations respectively yield that parties make diminishing and absolutist (independent
of current counteroffer) concessions, whereas they make relativist terminations. These
results are robust when tested separately for different buyer and house types, except that
certain buyer types make absolutist terminations. We explain relativist (resp. absolutist)
acceptances via high (resp. low) sensitivity to the looming deal price, and relativist (resp.
absolutist) exits by scarcity (resp. multitude) of available alternatives. Moreover, we ana-
lytically show that the empirical properties of concessions apply for compromises as well.
These properties of compromises allow us to connect a party’s offers to her reservation
price via a simple offer curve. Randomizing offers around the curves, we obtain max-
imum likelihood estimates of reservation prices and bargaining powers in terms of the
buyer and house types. Providing offer, reservation price, and bargaining power estima-
tions, offer curves could lead to a decision support tool for bargaining decisions
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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