1,721,069 research outputs found
"Doing the right thing" in the banking sector: integrity from an upper echelons perspective
No full textThe multiple facets of integrity in business and management
No full textIn this chapter, as a backdrop to the contributions made by the researchers in this volume, we first provide a brief sketch of the variety of ways integrity has been conceptualized and analyzed in the Management and Business Ethics literature. We then preview the individual chapters included in the book
Ureteroscopy Working Instruments
No full textIn this chapter we review the instrumentation for ureteroscopy. To better illustrate the important role of each ureteroscopic accessory device, we summarize a stepwise description of our technique, followed by an evidence-based recommendation for instrument selection. As a preface, it is important to emphasize that instrument selection is based on many considerations that extend beyond the scope of the chapter, including availability, cost, and surgeon preference and experience. © 2012 Blackwell Publishing Ltd.1388394Wickham, J.E., Treatment of urinary tract stones (1993) BMJ, 307, pp. 1414-1417Meyer, R.S., White, K.K., Smith, J.M., Groppo, E.R., Mubarak, S.J., Hargens, A.R., Intramuscular and blood pressures in legs positioned in the hemilithotomy position: clarification of risk factors for well-leg acute compartment syndrome (2002) J Bone Joint Surg Am, 84 A, pp. 1829-1835Forrest, J.B., Clemens, J.Q., Finamore, P., Best practice statement for theprevention ofdeep vein thrombosis in patients undergoing urologic surgery (2008) AUA, , http://www.auanet.org/content/guidelines-and-quality-care/clinical-guidelines/main-reports/dvt.pdfPfeffer, S.D., Halliwill, J.R., Warner, M.A., Effects of lithotomy position and external compression on lower leg muscle compartment pressure (2001) Anesthesiology, 95, pp. 632-636Khan, F., Borin, J.F., Pearle, M.S., McDougall, E.M., Clayman, R.V., Endoscopically guided percutaneous renal access: "seeing is believing" (2006) J Endourol, 20, pp. 451-415. , discussion 455Eandi, J.A., Hu, B., Low, R.K., Evaluation of the impact and need for use of a safety guidewire during ureteroscopy (2008) J Endourol, 22, pp. 1653-1658Clayman, M., Uribe, C.A., Eichel, L., Gordon, Z., McDougall, E.M., Clayman, R.V., Comparison of guide wires in urology. Which, when and why? (2004) J Urol, 171, pp. 2146-2150Monga, M., Re: Comparison of guidewires in urology. Which, when and why? (2005) J Urol, 173, p. 1830Kourambas, J., Byme, R.R., Preminger, G.M., Does a ureteral access sheath facilitate ureteroscopy? (2001) J Urol, 165, pp. 789-793L'esperance, J.O., Ekeruo, W.O., Scales Jr, C.D., Effect of ureteral access sheath on stone-free rates in patients undergoing ureteroscopic management of renal calculi (2005) Urology, 66, pp. 252-255Rehman, J., Monga, M., Landman, J., Characterization of intrapelvic pressure during ureteropyeloscopy with ureteral access sheaths (2003) Urology, 61, pp. 713-718Pietrow, P.K., Auge, B.K., Delvecchio, F.C., Techniques to maximize flexible ureteroscope longevity (2002) Urology, 60, pp. 784-788Monga, M., Best, S., Venkatesh, R., Prospective randomized comparison of 2 ureteral access sheaths during flexible retrograde ureteroscopy (2004) J Urol, 172, pp. 572-573Monga, M., Gawlik, A., Durfee, W., Systematic evaluation of ureteral access sheaths (2004) Urology, 63, pp. 834-836Beiko, D.T., Watterson, J.D., From bench to ureteroscopy: a comparison of ureteral access sheath physical properties (2005) J Endourol, 19, pp. MP23-14Pedro, R.N., Hendlin, K., Durfee, W., Monga, M., Physical characteristics of next-generation ureteral access sheaths: Buckling and kinking (2007) Urology, 70, pp. 440-442Monga, M., Anderson, J.K., Ercole, B., Bodie, J., Is there a role for small diameter ureteral access sheath? Impact on irrigant flow and intrarenal pressure (2004) Urology, 64, pp. 439-441Teichman, J.M., Vassar, G.J., Bishoff, J.T., Holmium:YAG lithotripsy yields smaller fragments than Lithoclast, pulsed dye laser, or electrohydraulic lithotripsy (1998) J Urol, 159, pp. 17-23Santa-cruz, R.W., Leveillee, R.J., Kongard, A., Ex vivo comparison of four lithotriptors commonly used in the ureter: what does it take to perforate? (1998) J Endourol, 12, pp. 417-422Dushinski, J.W., Lingeman, J.E., High-speed photographic evaluation of holmium laser (1998) J Endourol, 12, pp. 177-181Teichman, J.M., Rao, R.D., Rogenes, V.J., Harris, J.M., Ureteroscopic management of ureteral calculi: electrohyraulic versus holmium:YAG lithotripsy (1997) J Urol, 158, pp. 1357-1361Jeon, S.S., Hyun, J.H., Lee, K.S., A comparison of holmium:YAG laser with Lithoclast lithotripsy in ureteral calculi fragmentation (2005) Int J Urol, 12, pp. 544-547Knudsen, B.E., Glickman, R.D., Stallman, K.J., Performance and safety of holmium: YAG laser optical fibers (2005) J Endourol, 19, pp. 1092-1097Calvano, C.T., Moran, M.E., White, M.D., Experimental utilization of the holmium laser in a model of ureteroscopic lithotripsy: energy analysis (1999) J Endourol, 13, pp. 113-115Kuo, R.L., Aslan, P., Zhong, P., Preminger, G.M., Impact of holmium laser settings and fiber diameter on stone fragmentation and endoscope deflection (1998) J Endourol, 12, pp. 523-527Poon, M., Beaghler, M., Baldwin, D., Flexible endoscope deflectability: changes using a variety of working instruments and laser fibers (1997) J Endourol, 11, pp. 247-249Zhong, P., Tong, H.-L., Cocks, F.H., Preminger, G.M., Transient oscillation of cavitation bubbles near stone surface during electrohydraulic lithotripsy (1997) J Endourol, 11, p. 55Sterenborg, J.H., De Reijke, T.M., Wiersma, J., Erckens, R.C., Jogsma, F.H., High-speed photographic evaluation of endoscopic lithotripsy devices (1991) Urol Res, 19, pp. 381-385Basar, H., Ohta, N., Kageyama, S., Suzuki, K., Kawabe, K., Treatment of ureteral and renal stones by electrohydraulic lithotripsy (1997) Int Urol Nephrol, 29, pp. 275-280Desai, M.R., Patel, S.B., Desai, M.M., The Dretler stone cone: a device to prevent ureteral stone migration - the initial clinical experience (2002) J Urol, 167, pp. 1985-1988Holley, P.G., Sharma, S.K., Perry, K.T., Turk, T.M., Assessment of novel ureteral occlusion device and comparison with stone cone in prevention of stone fragment migration during lithotripsy (2005) J Endourol, 19, pp. 200-203Ouwenga, M.K., Sharma, S.K., Holley, P., Turk, T.M., Perry, K.T., Load-release points of two novel ureteral stoneentrapping devices (2005) J Endourol, 19, pp. 894-897Ahmed, M., Pedro, R.N., Kieley, S., Akornor, J.W., Durfee, W.K., Monga, M., Systematic evaluation of ureteral occlusion devices: insertion, deployment, stone migration, and extraction (2009) Urology, 73, pp. 976-980Sacco, D., McDougal, W.S., Schwarz, A., Preventing migration of stones during fragmentation with thermosensitive polymer (2007) J Endourol, 21, pp. 504-507Rane, A., Bradoo, A., Rao, P., The use of a novel reverse thermosensitive polymer to prevent ureteral stone retropulsion during intracorporeal lithotripsy: a randomized, controlled trial (2010) J Urol, 183, pp. 1417-1421Bagley, D., Ramsay, K., Zeltser, I., An update on ureteroscopic instrumentation for the treatment of urolithiasis (2004) Curr Opin Urol, 14, pp. 99-106Honey, R.J., Assessment of a new tipless nitinol stone basket and comparison with an existing flat-wire basket (1998) J Endourol, 12, pp. 529-531Chenven, E., Bagley, D., In vitro retrieval and releasing capabilities of stone basket designs (2002) J Endourol, 16 Suppl 1, pp. A11Monga, M., Hendlin, K., Lee, C., Anderson, J.K., Systematic evaluation of stone basket dimensions (2004) Urology, 63, pp. 1042-1044Lukasewycz, S., Hoffman, N., Botnaru, A., Deka, P.M., Monga, M., Comparison of tipless and helical baskets in an in vitro ureteral model (2004) Urology, 64, pp. 435-438Hendlin, K., Lee, C., Anderson, J.K., Monga, M., Radial dilation force of tipless and helical stone baskets (2004) J Endourol, 18, pp. 946-947Zeltser, I.S., Bagley, D.H., Basket design as a factor in retention and release of calculi in vitro (2007) J Endourol, 21, pp. 337-342Blew, B.D., Dagnone, A.J., Fazio, L.M., Pace, K.T., Honey, R.J., Practical comparison of four nitinol stone baskets (2007) J Endourol, 21, pp. 655-658Patel, A., What is new in Ureteroscopy? (2009), European Association of Urology Annual Congress - Stockholm, 17-21 MarchCanales, B.K., Ramani, A., Monga, M., A new spin on the entrapped ureteral calculus (2006) J Endourol, 20, pp. 460-461Kesler, S.S., Pierre, S.A., Brison, D.I., Preminger, G.M., Munver, R., Use of the Escape nitinol stone retrieval basket facilitates fragmentation and extraction of ureteral and renal calculi: a pilot study (2008) J Endourol, 22, pp. 1213-1217Hendlin, K., Lund, B., Dockendorf, K., Ramani, R., Monga, M., Radial dilation of ureteral balloons: a comparative in vitro analysis (2005) J Endourol, 19, pp. 575-578Ortiz-alvarado, O., Haberman, K., Chotikawanich, E., Monga, M., The Cobra Dual-Channel Flexible Ureteroscope: novel unction, novel applications (2010), J Endourol Part B Videourol First published January, doi: 10.1089/ vid.2010.0002, 2010Abdelshehid, C., Ahlering, M., Chou, D., Comparison of flexible ureteroscopes: deflection, irrigant flow and optical characteristics (2005) J Urol, 173, pp. 2017-2021Monga, M., Weiland, D., Pedro, R.N., Lynch, A.C., Anderson, K., Intrarenal manipulation of flexible ureteroscopes: a comparative study (2007) BJU Int, 100, pp. 157-159Afane, J.S., Olweny, E.O., Bercowsky, E., Flexible ureteroscopes: a single center evaluation of the durability and function of the new endoscopes smaller than 9Fr (2000) J Urol, 164, pp. 1164-1168Monga, M., Best, S., Venkatesh, R., Durability of flexible ureteroscopes: a randomized, prospective study (2006) J Urol, 176, pp. 137-141Knudsen, B., Miyaoka, R., Shah, K., Durability of the next-generation flexible fiberoptic ureteroscopes: a randomized prospective multi-institutional clinical trial (2010) Urology, 75, pp. 534-538Multescu, R., Geavlete, G.D., Geavlete, P., Conventional fiberoptic flexible ureteroscope versus fourth generation digital flexible ureteroscope: a critical comparison (2010) J Endourol, 24, pp. 1-5Knudsen, B.E., Ferraro, M., Digital video flexible ureteroscopy: Gyrus ACMI/Olympus Invision DUR-D twelve month failure and repair experience (1843), AUA 2009 Stone Disease: Research/New Technology (I) Moderated Poster #Boylu, U., Oommen, M., Thomas, R., Lee, B.R., In vitro comparison of a disposable flexible ureteroscope and conventional flexible ureteroscopes (2009) J Urol, 182, pp. 2347-2351Hendlin, K., Lund, B., Dockendorf, K., Ramani, R., Monga, M., Radial dilation of ureteral balloons: a comparative in vitro analysis (2005) J Endourol, 19, pp. 575-578Hendlin, K., Weiland, D., Monga, M., Impact of irrigation systems on stone migration (2008) J Endourol, 22, pp. 453-458Tracy, C.R., Pearle, M.S., Improving the efficiency ff stone fragment removal: use of iron-oxide microparticles to allow stone extraction with novel magnetic tools (2009), Annual Meeting of the American Urological Association (AUA) - April 25-30Jakobsen, J.S., Endoluminal isoproterenol inhibits the pressure increase to perfusion during semirigid ureterorenoscopy (2009), Effects and side effects of endoluminal isoproterenol perfusion in a porcine model. European Association of Urology Annual Meeting (EAU) Stockholm, 17-21 Marc
Di cosa parliamo quando parliamo di 'programmi'
No full textIl mondo della scuola si sta ormai convincendo che la programmazione debba avere un ruolo sempre più rilevante tra le competenze da acquisire a tutti i livelli e in tutti i percorsi formativi. Del resto è assai opportuno che una parte sempre più ampia della cittadinanza sia in grado di capire cosa significa progettare e realizzare elaborazioni automatizzate. Il rischio, tuttavia, è che la complessità tecnologica spinga a banalizzare gli obiettivi formativi o a soffermarsi su aspetti di dettaglio, perdendo di vista la ricchezza concettuale che la programmazione può dispiegare una volta colte le sue molteplici sfaccettature. Una chiara esposizione degli aspetti chiave dei programmi può aiutare insegnanti e altri operatori culturali a identificare le ragioni della centralità del software nella società attuale e a orientare al meglio l’azione educativa, affinché la pratica della programmazione dischiuda tutte le sue potenzialità come strumento di consapevolezza e cittadinanza attiva
A Virtual Campus for Tethered and Untehered Scenarios
No full textThe paper focuses on the novel features of the architecture of the "Virtual Campus" infrastructure we are building at Politecnico di Milano. First, it illustrates the rich underlying conceptual model, which fosters reuse and evolution of learning objects by aggregation and modification. Complex learning objects can be defined and enacted as learning processes by a work-flow engine that manages and distributes learning and working data. Data can be analyzed to reason about users' behavior, audit their work and help them. Autonomous tutoring agents are provided for these tasks. The system provides virtual connection facilities to enable data sharing in untethered contexts
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Constructionist attempts at supporting the learning of computer programming: A survey
No full textAlthough programming is often seen as a key element of constructionist approaches, the research on learning to program through a constructionist strategy is somewhat limited, mostly focusing on how to bring the abstract and formal nature of programming languages into "concrete", possibly tangible objects, graspable even by children with limited abstraction power. We survey the literature in programming education and analyse some programming languages designed to help novices from a constructionist perspective
Variations on the Author
Full text link“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
Full text linkWe 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
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