116,174 research outputs found
Solutions to some problems in amenable semigroups
No full textSynopsisThis paper discusses a few problems on the size of the set of invariant means of an amenable semigroup posed by Maria M. Klawe, Alan L. T. Paterson and M. Rajagopalan and P. V. Ramakrishnan ([4], [5], [8] and [9]).</jats:p
Proceedings of the 28th Conference of Cement Microscopy
No full textBruce W. Berdenier (with Dawadi, S., Ramakrishnan, V,) is a contributing author, “Surface Morphology of Reactive Powder Concrete Containing Arsenic , pp. 205-226.
The annual meeting of the International Cement Microscopy Association consistently contributes new and innovative research on a variety of cement and concrete topics. The 2006 event featured 18 papers by international experts from universities, research institutes, and other organizations on topics including petrographic analysis, x-ray diffraction, sulfate investigation, fly ash analysis, and more. Published by ICMA
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
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
Variations on the Author
No full text“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
Intraoperative esophageal Doppler hemodynamic monitoring in free perforator flap surgery
No full textGoal-directed fluid therapy optimizes cardiac output and flap perfusion during anesthesia. Intraoperative esophageal Doppler (ED) monitoring has been reported as more accurate and reliable, demonstrating improved surgical outcomes compared with central venous pressure and arterial catheter monitoring. A prospective study of patients undergoing free perforator (deep inferior epigastric artery perforator/anterolateral thigh) flap surgery with intraoperative ED monitoring (51 patients) or central venous pressure monitoring (53 patients) was undertaken. Fluid input included crystalloids, colloids, or blood products. Fluid output included urine, blood, or suctioned fluid. Postoperative fluid balance was calculated as fluid input - output. Fluid input between groups was not different. Fluid output was greater in the ED group (P = 0.008). The ED group showed less fluid balance (P = 0.023), less anesthetic time (P = 0.001), less hospital stay (mean 1.9 days; P = 0.147), less monitoring and flap complications (P = 0.062). ED monitoring demonstrated no monitoring complications, provides a favorable postoperative fluid balance, and may reduce flap complications and hospital stay
The transverse myocutaneous gracilis flap: technical refinements
No full textAutologous free tissue transfer is an ideal method for breast reconstruction. The deep inferior epigastric perforator (DIEP) flap is considered the gold-standard procedure worldwide. However, in selected patients this flap cannot be performed to achieve satisfactory outcomes. The transverse myocutaneous gracilis (TMG) flap is one of the most recent additions to the armamentarium of breast-reconstructive surgeons. This flap can provide adequate autologous tissue with a hidden scar. Since its description for breast reconstruction in 2004, no series have been published and its recognition is still lacking. The main criticism of this flap is the lack of volume that can be achieved and the potential for donor morbidity. We report upon a 2-year experience with the use of TMG flaps for breast reconstruction, assessing the potential indications and introducing some technical refinements in order to expand the role of this flap in breast reconstruction. Materials and methods: Information regarding all TMG flaps performed in the period between January 2006 and December 2007 was prospectively collected. Indications and outcomes were reviewed. The surgical technique was revised and standardised to achieve a routine set-up. Results: During the study period, 19 TMG flaps were performed in 12 patients (seven double procedures: five bilateral cases and two stacked flaps for unilateral breast reconstruction). One flap was lost 9 days postoperatively. Follow-up ranged from 6 months to 2 years. We detail our surgical technique and describe refinements to speed up flap harvest, increase flap volume, optimise flap inset and minimise donor-site complications. Conclusion: Although the DIEP flap is still our preferred choice for breast reconstruction, the TMG flap is suitable as a first-line option in small-to-moderate breasted women or as a second-line choice for larger-breasted women for whom the DIEP flap may not be the preferred choice. It is also a reliable salvage flap in cases of previous flap failure
Flap size/flow rate relationship in perforator flaps and its importance in DIEAP flap drainage
No full textThe vascular architecture within a perforator flap is different from a conventional muscle or myocutaneous flap. The purpose of this paper is to understand the correlation between flow rate and flap size in perforator flaps. With extrapolation of these data, we have provided an indirect analysis of the venous drainage and its correlation with flap size. A prospective study was planned. Twenty-five patients were enrolled in this study: six patients were operated on using an anterolateral thigh (ALT) flap and 19 using a deep inferior epigastric artery perforator (DIEAP) flap. One month postoperatively, echo-colour-Doppler measurements were performed on pedicle and perforator arteries to calculate blood flow rate in the flaps. A correlation between weight and flow rate was analysed. Spearman Ï statistic was calculated. A linear regression model was made from patient data of flow rate/flap weight and predicted values of flow per flap weight were calculated. Then, flow rate values of veins of various diameters were estimated using Hagen-Poiseuille's formula. Our data show that flow rate measured postoperatively on flap arteries is significantly correlated with flap weight [Ï(23 d.f.) = 0.725, P < 0.01 (two-tailed)]. Moreover, we have calculated the minimum size of veins able to drain flaps of increasing weights with different patterns, i.e. our data show that veins of 1.30, 1.50 and 1.75 mm diameter could safely drain flaps of, respectively, 300, 500 and 900 g in weight. This can be useful preoperatively to estimate the risk of flap congestion and in planning additional drainage
Logic Based Modeling and Analysis of Workflows (Extended Abstract)
No full text) Hasan Davulcu Michael Kifer C.R. Ramakrishnan I.V. Ramakrishnan Department of Computer Science SUNY at Stony Brook, Stony Brook, NY 11794-4400 fdavulcu,kifer,cram,[email protected] To appear in PODS-98 June 1998, Seattle, Washington This work is partially supported by a DLA/DARPA contract and by the NSF grants IRI9404629, CCR-9510072, CCR-9705998, CCR-9711386, CCR-9404921, CDA-9303181, CDA-9504275 Triggers execute activity p If cond 6 holds then If cond 7 holds then execute activity q If event d occurs then If event g occurs then Global Constraints If d is ever executed then g must also be executed If e and i are both executed then e must happen before i If g and j are both executed then j must happen before g OR OR b d e f g h i j cond 1 cond 3 cond 4 Control Flow Graph cond 5 k AND cond 2 c a Figure 1: Frameworks for Specifying Workflows 1 Introduction A workflow is a collection of cooperating, coordinated activities designed to carry out a well-defined comple..
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