2,194 research outputs found
Non-compliance with national guidelines in the management of acute pancreatitis in the United kingdom
No full textBackground: deficiencies and lack of standardisation of the management of acute pancreatitis in the UK have been reported. National UK guidelines for the management of acute pancreatitis were published in 1998. However, implementation of national guidelines in other areas has been patchy, suggesting that evaluation of the uptake of the pancreatitis guidelines would be appropriate. Aim: identification of current practice in the management of acute pancreatitis as reported by consultant surgeons, in order to determine how effectively the UK guidelines have been introduced into practice. Methods: a questionnaire was posted to 1,072 full members of the Association of Surgeons of Great Britain and Ireland. It consisted of 13 questions that aimed to identify the surgeon's practice in the management of patients with acute pancreatitis in relation to key points in the UK guidelines. We compared the practice of hepatobiliary and pancreatic (HBP) vs. non-HBP specialists, and teaching vs. non-teaching hospital surgeons using the chi2 test. Results: of 538 responses (50%), 519 were from consultant surgeons. 59 did not look after patients with acute pancreatitis and 89 (17%) had a HBP interest. There were differences between the recommendations in the guidelines and reported practice, particularly in the use of critical care resources and referral to specialist units. Of consultants looking after acute pancreatitis 371 (72%) were non-HBP specialists. There were significant overall differences between the practice of HBP specialists and non-specialists: in severity assessment (Glasgow and C-reactive protein vs. Ranson criteria); indication and timing of requesting computed tomography (routinely at 7-10 days vs. when clinically indicated); nutritional support (enteral feeding vs. no support), and in common bile duct assessment prior to cholecystectomy (intra-operative cholangiography vs. endoscopic retrograde cholangiopancreatography). There was no significant difference between practice in teaching and non-teaching hospitals. Conclusion: implementation of national guidelines for the management of acute pancreatitis was greater in the practice of HBP specialists than non-specialists. This has implications for the rationale of creating guidelines, and for the strategies associated with their introduction
Superconducting quantum point contacts and Maxwell potential
No full textThe quantization of the current in a superconducting quantum point contact is reviewed and the critical current is discussed at different temperatures depending on the carrier concentration as well by suggesting a constant potential in the semiconductor and then a Maxwell potential. When the Fermi wavelength is comparable with the constriction width we showed that the critical current has a step-like variation as a function of the constriction width and the carrier concentration. © World Scientific Publishing Company.Abdalla E, 1998, PHYS REV LETT, V80, P238, DOI 10.1103-PhysRevLett.80.238; AKAZAKI T, 1991, APPL PHYS LETT, V59, P2037, DOI 10.1063-1.106124; ALY AH, 1998, EGYPTIAN J PHYS, V70, P35; ANDREEV AF, 1964, SOV PHYS JETP-USSR, V19, P1228; Andreev A.F., 1964, Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki, V46; BARDEEN J, 1972, PHYS REV B, V5, P72, DOI 10.1103-PhysRevB.5.72; Bauch T, 2005, PHYS REV B, V71, DOI 10.1103-PhysRevB.71.174502; BECKER T, 1995, PHYSICA B, V204, P183, DOI 10.1016-0921-4526(94)00261-S; Chang VCY, 1997, PHYS REV B, V55, P6004, DOI 10.1103-PhysRevB.55.6004; CHRESTIN A, 1994, PHYS REV B, V49, P498, DOI 10.1103-PhysRevB.49.498; Chtchelkatchev NM, 2000, PHYS REV B, V62, P3559, DOI 10.1103-PhysRevB.62.3559; Colatto LP, 2003, PHYS LETT A, V314, P184, DOI 10.1016-S0375-9601(03)00903-4; Dai Z, 2006, APPL PHYS LETT, V88, DOI 10.1063-1.2206697; De Franceschi S, 1998, APPL PHYS LETT, V73, P3890, DOI 10.1063-1.122926; DEGENNES PG, 1995, SUPERCONDUCTIVITY ME, pCH5; DESER S, 1982, ANN PHYS-NEW YORK, V140, P372, DOI 10.1016-0003-4916(82)90164-6; DUNNE GV, HEPTH9902115; FROLOV SM, 2004, MAT04042434; FURUSAKI A, 1991, PHYS REV LETT, V67, P132, DOI 10.1103-PhysRevLett.67.132; FURUSAKI A, 1998, CONDMAT9811026; FURUSAKI A, 1992, PHYS REV B, V45, P10563, DOI 10.1103-PhysRevB.45.10563; Giazotto F, 2001, APPL PHYS LETT, V78, P1772, DOI 10.1063-1.1357211; Imamura H, 2002, J APPL PHYS, V91, P7032, DOI 10.1063-1.1447188; ISHII C, 1970, PROG THEOR PHYS, V44, P1525, DOI 10.1143-PTP.44.1525; ISHII C, 1972, PROG THEOR PHYS, V47, P1464, DOI 10.1143-PTP.47.1464; KASTALSKY A, 1991, PHYS REV LETT, V67, P3026, DOI 10.1103-PhysRevLett.67.3026; Khare A, 1998, FRACTIONAL STAT QUAN; Kikuchi K., 2002, Physical Review B (Condensed Matter and Materials Physics), V65, DOI 10.1103-PhysRevB.65.020508; KLAPWIJK TM, 1994, PHYSICA B, V197, P481, DOI 10.1016-0921-4526(94)90248-8; KULIK IO, 1970, SOV PHYS JETP-USSR, V30, P944; Lachenmann SG, 1998, J APPL PHYS, V83, P8077, DOI 10.1063-1.367905; MAGNEE PHC, 1994, PHYS REV B, V50, P4594, DOI 10.1103-PhysRevB.50.4594; NGUYEN C, 1994, APPL PHYS LETT, V65, P103, DOI 10.1063-1.113047; NITTA J, 1992, PHYS REV B, V46, P14286, DOI 10.1103-PhysRevB.46.14286; Poirier W, 1997, PHYS REV LETT, V79, P2105, DOI 10.1103-PhysRevLett.79.2105; Regul J, 2002, APPL PHYS LETT, V81, P2023, DOI 10.1063-1.1506417; STERN J, 1991, PHYS LETT B, V265, P119, DOI 10.1016-0370-2693(91)90024-K; SVIDZINS.AV, 1973, J LOW TEMP PHYS, V10, P131, DOI 10.1007-BF00655245; Sze S. M., 1981, PHYS SEMICONDUCTOR D; Taboryski R, 1996, APPL PHYS LETT, V69, P656, DOI 10.1063-1.117796; TAKAYANAGI H, 1995, PHYS REV LETT, V75, P3533, DOI 10.1103-PhysRevLett.75.3533; TAKAYANAGI H, 1995, PHYS REV B, V51, P1374, DOI 10.1103-PhysRevB.51.1374; VANHOUTEN H, 1991, PHYSICA B, V175, P187, DOI 10.1016-0921-4526(91)90712-N; VANHUFFELEN WM, 1993, PHYS REV B, V47, P5170, DOI 10.1103-PhysRevB.47.5170; VANWEES BJ, 1988, PHYS REV LETT, V60, P848, DOI 10.1103-PhysRevLett.60.848; WHARAM DA, 1988, J PHYS C SOLID STATE, V21, pL887, DOI 10.1088-0022-3719-21-24-00223
On the conceptual feasibility of a CAAD-CAAI integrated decision support system: A computer aided environment for technical decision-making in architecture
No full textArchitectur
A letter to A.H. Esq., concerning the stage [electronic resource]
No full textA defense of the stage, in answer to Jeremy Collier's Short view of the immorality and profaneness of the English stage."The initials in the title [i.e. A.H.] have been identified as those of Anthony Hammond. Charles Hopkins has been suggested as the probable author." Cf. NUC pre-1956.Reproduction of original in Huntington Library.WingElectronic reproduction
De kosten van een zandsuppletie op het strand van de Kop van Goeree uitgevoerd met behulp van de zogenaamde "Punaise"
No full textIn het 1e deel van het afstudeerverslag van A.H. van Berk (lit. 1) werd de vraag gesteld of een baggersysteem voor het kustonderhoud van de Kop van Goeree met de punaise (fig. 0) in één van de wingebieden A, B of C (fig. 2) kan konkurreren met een systeem met een cutterzuiger in wingebied E. Voor het antwoord op deze vraag zijn de kosten van zowel de uitvoering met de punaise als die met de cutterzuiger bepaald. Deze kosten zijn omgerekend naar de gemiddelde jaarlijkse kosten voor het kustonderhoud en onderling vergeleken. In het tweede deel wordt een handleiding gegeven voor de berekening van de jaarlijkse kosten van het kustonderhoud van de lop van Goeree door zandsuppietie a.b.v. de Punaise.Hydraulic EngineeringCivil Engineering and Geoscience
Determinanten van kennisintensieve onderzoeks- en ontwikkelingssamenwerking
No full textIt is becoming increasingly important for companies to ensure a continuing supply of new knowledge. The development of innovative production processes and marketing strategies as well as better products and services improves the competitive position of firms on the world market. This is of special interest to Dutch firms who have only a small and open home market. The principal research question addressed in this thesis concerns the determinants that influence companies in their choice of whether or not to enter into a knowledge-intensive research and development collaboration. This thesis also looks in detail at the role of publicly financed research institutions such as universities, in the setting of the company innovation process as well as at cooperation among private firms. About 13% of all innovative firms in the Netherlands are engaged in some sort of knowledge-intensive research and development collaboration. Knowledge spillovers are an important reason to reject collaboration as a means of acquiring knowledge because spillovers worsen the appropriability conditions, thus decreasing the economic benefits gained from innovative efforts. In correspondence with the literature we find that a high level of R&D-intensity of the partners involved is a very important prerequisite for entering into knowledge intensive R&D-collaboration. Furthermore an important finding is that the probability of entering into a knowledge-intensive R&D-collaboration increases proportionally to the size of the firm. Most innovative firms choose to be engaged in both private and public types of knowledge intensive R&D-collaboration. From this it can be concluded that public and private types of collaboration are complementary to one another. Knowledge intensive R&D-collaboration is also of strategic importance making the decision whether to introduce either improved or newly-developed products onto the market. Firms engaged in knowledge intensive R&D-collaboration more often choose to introduce new products instead of improved products onto the market.Technology, Policy and Managemen
Experiments on nulcides decaying by position emission and electron caputure
No full textApplied Science
Metingen met een proportionele teller bij beta-desintegratie
No full textElectrical Engineering, Mathematics and Computer Scienc
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