117,828 research outputs found

    An Overview of Service-Oriented Architecture

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    This report is a literature review of Service-Oriented Architectures (SOA). An SOA is a loosely couple network of communicating services. The key elements and characteristics of SOAs are outlined to guide the CORE project in creating a Virtual Research Environment (VRE). The benefits of using SOA concepts in implementing the VRE are presented and justifications of their use in the CORE project are also discussed

    Stereotypes upon abilities in domestic production and household behaviour

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    The collective model assumes that decisions taken inside the family are Pareto optimal. However, empirical studies cast doubts upon the efficiency assumption, especially on the production side of household decision making. In this paper, we present a model of household behavior including a stereotype about the ability of men and women in the production of domestic goods. At the beginning of couple formation, we assume that the distribution of abilities in domesticc of men and women is the same, but everybody believes that women are more able (the stereotype). One member of the couple is then chosen to make an investment in domestic production, which increases his/her productivity. Couples decide who will invest by maximizing the expected profit from domestic production, which depends on a signal and on the stereotype. Even though spouses aim at maximizing the household welfare, the resulting allocation is not Pareto efficient. This result leads to examine the role of public policies to restore the first best optimum, as well as equity.Stereotypes, household production, time allocation, household behavior, intra-household, decision-making.

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Household Division of Labor : Is There Any Escape From Traditional Gender Roles ?

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    The effects of women's strong investments in career and their relative positions on the household division of labor, particularly the share of male partners in household work, constitute important but somehow unaddressed issues. We use the French Time Use Survey, focusing on couples where both partners participate in the labor market, to build indicators of strong female investment in career, and look into the possible effect on the gender division of labor, particularly the male share of household work. We show that though a better relative position of the woman in the labor market increases her husband's share of household work, there is no role reversal in the division of labor.Household work, labor market, gender.

    Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?

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    In this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We 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

    Letter from unknown writer to Jesse L. Boyce

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    Letter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Resonance® metallic stent in patients with ureterocutaneostomies

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    Purpose: To evaluate the effectiveness and the safety of Resonance® stents in patients with ureterocutaneostomies (UCS). Materials and methods: We retrospectively enrolled all patients with UCS who presented with impaired ureteral drainage with traditional polymeric ureteral prosthesis. Preoperative and follow-up (1, 3, 6, 12 months) workup, after Resonance® placement, included: medical history, physical examination, serum laboratory tests, urinalysis, urine culture and urinary tract imaging by ultrasound, administration of the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire C30 (QLQ-C30) and an evaluation of patients’ satisfaction rate. In addition, the number of emergency department patient admissions and hospitalizations occurred 1 year before and after the stent Resonance® placement was noted. Results: Twenty-five renal units in 14 patients with UCS were included. Statistically significant improvements in creatinine serum levels, patients’ satisfaction rate, hydronephrosis and number of urinary tract infections (UTI) were found at 1-, 3-, 6-, and 12-month follow-up compared to baseline. Statistically significant differences in EORTC QLQ-C30 were detected only in Emotional, Social and Global QoL domains before and after Resonance® placement (p < 0.0001). At inclusion, a total of 39 referrals to ED were recorded; at 1-year follow-up, only five cases of ED presentations have been recorded (p < 0.01). At the same endpoints, the number of hospitalizations was 18 and 2, respectively (p < 0.05). Failure rate was 8.3 %. Conclusion: At 1-year follow-up, Resonance® stents are effective and safe in patients with UCS refractory to polymeric ureteral prosthesis, reporting evidence for significant improvements in hydronephrosis rate, renal function, UTI, and patients’ satisfaction rate and QoL
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