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  • 1
    Electronic Resource
    Electronic Resource
    Climatic signals in tree-ring chronologies for British oaks (reply) (1979)
    [s.l.] : Nature Publishing Group
    Nature 278 (1979), S. 283-283 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HUGHES ET AL. REPLY-Varley et a/.'s1 comments are based largely on misunderstandings of dendroclimatological techniques2'7. We agree that it is not appropriate to use mean ring-width chronologies. We did not do so but rather used standardised indices of ring-width2 for well-documented ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/278283a0
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  • 2
    Electronic Resource
    Electronic Resource
    Climatic signals in British Isles tree-ring chronologies (1978)
    [s.l.] : Nature Publishing Group
    Nature 272 (1978), S. 605-606 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] For a tree-ring chronology to be of value in climatic reconstruction it should have a clear and discernible relationship to climate. The tree-site complex may be considered as a transducer, with external environmental conditions as inputs and a series of changing annual ring-widths as output. For ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/272605a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A comparison of the effects of sodium arsenite and sodium arsenoacetate upon the behaviour of a cyanide brass plating solution
    Amsterdam : Elsevier
    Electrodeposition and Surface Treatments 2 (1974), S. 233-243 
    Details
    ISSN: 0300-9416
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0300-9416(74)90037-6
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  • 4
    Electronic Resource
    Electronic Resource
    A comparison of three standard methods of identifying mast cells in endobronchial biopsies in normal and asthmatic subjects (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 52 (1997), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Reported mast-cell counts in endobronchial biopsies from asthmatic subjects are conflicting, with different methodologies often being used. This study compared three standard methods of counting mast cells in endobronchial biopsies from asthmatic and normal subjects. Endobronchial biopsies were obtained from atopic asthmatic subjects (n= 17), atopic nonasthmatic subjects (n=6), and nonatopic nonasthmatic control subjects (n=5). After overnight fixation in Carnoy's fixative, mast cells were stained by the short and long toluidine blue methods and antitryptase immunohistochemistry and were counted by light microscopy. Method comparison was made according to Bland & Altman. The limits of agreement were unacceptable for each of the comparisons, suggesting that the methods are not interchangeable. Coefficients of repeatability were excellent, and not different for the individual techniques. These results suggest that some of the reported differences in mast-cell numbers in endobronchial biopsies in asthma may be due to the staining method used, making direct comparisons between studies invalid. Agreement on a standard method is required for counting mast cells in bronchial biopsies, and we recommend the immunohistochemical method, since fixation is less critical and the resultant tissue sections facilitate clear, accurate, and rapid counts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1997.tb02155.x
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  • 5
    Electronic Resource
    Electronic Resource
    Laparoscopic colposuspension using mesh reinforcement (1997)
    Springer
    Surgical endoscopy and other interventional techniques 11 (1997), S. 1111-1114 
    Details
    ISSN: 1432-2218
    Keywords: Key words: Burch colposuspension—Colposcopy—Laparoscopic surgery—Stress urinary incontinence—Urethropexy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: For patients with stress urinary incontinence, surgical reestablishment of the bladder neck has proved amenable to a laparoscopic approach, which shortens hospitalization and reduces tissue trauma. The use of mesh reinforcement to improve the durability of colposuspension can refine this proven procedure even further. Methods: We performed laparoscopic Burch colposuspension on 54 patients with stress urinary incontinence and compared our results with those of other investigators. Results: All patients reported resolution of incontinence postoperatively: 83.3% received no supplementary medication while 16.7% took antispasmodic-anticholinergic medications. Two cases required conversion to an open procedure. Hospital stay declined from 2.7 days (first quartile) to 1.9 days (last quartile) (average, 2.3 days). Complications were rare, and in a 28-month follow-up, no reoperations were required. Conclusion: Laparoscopic Burch colposuspension using mesh reinforcement provides durable resolution of stress incontinence with low risk of conversion, short hospitalization, and few complications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004649900542
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  • 6
    Electronic Resource
    Electronic Resource
    Minimizing ports to improve laparoscopic cholecystectomy (2000)
    Springer
    Surgical endoscopy and other interventional techniques 14 (2000), S. 32-36 
    Details
    ISSN: 1432-2218
    Keywords: Key words: Laparoscopic cholecystectomy — Laparoscopic surgery — Laparoscopy — Microlaparoscopic cholecystectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Minimizing the number and scope of ports used to perform laparoscopic cholecystectomy attempts to build on the improvements in postoperative pain control, rapid return to activity and work, patient satisfaction, and cosmetic result achieved by the laparoscopic method. Methods: We studied 141 patients in two sequential studies: the first a prospective randomized trial with 41 patients, and the second an examination of the more minimal procedure in 100 patients. In the randomized trial, patients underwent laparoscopic cholecystectomy with three ports: three 5-mm ports or two 10-mm ports and one 5-mm port. The 100 patients underwent the three 5-mm port procedure. Results: In the randomized trial, differences were not statistically significant. However, on the average, the group with three 5-mm ports required less medication over less time, had less postoperative pain, and took less time to return to activity than the second group with larger ports. A statistically significant difference was found in incisional pain between the smaller group (21 patients) with two 10-mm ports and one 5-mm port and the larger group (100 patients) with three 5-mm ports, whether the measure was overall incisional pain (p= 0.014) or a comparison based on specific ports (p= 0.001). The percentage of cases requiring port enlargement to remove the gallbladder was not significantly different between the groups. There were no conversions to an open procedure, no fourth trocars added, and no complications. No patient required overnight hospitalization. Conclusions: Reducing the number and size of ports in laparoscopic cholecystectomy sustains or enhances the improvements initiated by performing laparoscopic rather than open cholecystectomy. In a comparison of microlaparoscopic procedures, patients undergoing the procedure with the shorter incisions experienced significantly less pain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004649900006
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  • 7
    Electronic Resource
    Electronic Resource
    A comparison of laparoscopic Nissen fundoplication and Rossetti's modification in 239 patients (2000)
    Springer
    Surgical endoscopy and other interventional techniques 14 (2000), S. 473 -477 
    Details
    ISSN: 1432-2218
    Keywords: Key words: Fundoplication — Gastroesophageal reflux disease — Laparoscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Laparoscopic Nissen fundoplication and the Rossetti modification represent two different surgical approaches to resolving gastroesophageal reflux disease (GERD). Concerns have arisen that the Rossetti modification results in increased postoperative dysphagia. In this study, we compared a group of patients who underwent a laparoscopic Nissen fundoplication with a group who had undergone the Rossetti modification to determine if there was a significant difference in postoperative dysphagia. Additionally, we wanted to confirm that the Nissen procedure performed laparoscopically could resolve GERD as successfully as the Rossetti modification, with no difference in operative complications. Methods: We prospectively collected data on 101 patients who underwent laparoscopic Nissen fundoplication and compared outcomes with those of 138 patients who had undergone the laparoscopic Rossetti modification in a previous series. Results: All patients experienced resolution of reflux symptoms. No statistically significant differences were found between the groups in terms of intraoperative or postoperative complications, conversions to open procedure, or length of hospitalization. Paradoxically, there was a significant difference in operating time between the Rossetti and the Nissen groups (70.6 min vs 45.6 min, p= 0.006). Postoperative dysphagia requiring dilation was significantly higher in the Rossetti group (21.7% vs 8.9%, p= 0.008). However, there was a significantly higher percentage of patients in the Rossetti group who had had esophagitis preoperatively (95.7% vs 86.1%, p= 0.009), although the proportion of patients having Barrett's esophagus was higher in the Nissen group (9.4% vs 24.8%, p= 0.001). Conclusions: Both approaches resolved reflux symptoms without significant differences in complications, conversions, or length of stay. Preoperative differences between groups, as well as the method of sequentially comparing the two different procedures, prevent us from attributing greater postoperative dysphagia in the Rossetti group solely to the choice of surgical approach. Prospective randomized studies are needed to control for variables, such as surgical team experience and patient differences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004640020079
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  • 8
    Electronic Resource
    Electronic Resource
    Resolving gastroesophageal reflux with laparoscopic fundoplication (1998)
    Springer
    Surgical endoscopy and other interventional techniques 12 (1998), S. 142-147 
    Details
    ISSN: 1432-2218
    Keywords: Key words: Nissen fundoplication — Laparoscopic surgery — Gastroesophageal reflux
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: The purpose of this study was to evaluate the results of 138 cases of gastroesophageal reflux disease resolved laparoscopically with the Rossetti modification of the Nissen fundoplication and to compare them with findings from other studies in an effort to evaluate the procedure's ability to transfer from an academic setting to a community hospital setting. Methods: We performed laparoscopic Nissen fundoplication on 138 patients and followed them for up to 45 months. Measures included postoperative reflux persistence, complications, operating time, length of hospital stay, and others. These findings were compared, using the Fisher's exact test, chi-square test, and the two-sample t-test, with results from other studies using open and laparoscopic procedures. Results: No patient undergoing laparoscopic fundoplication experienced gastroesophageal reflux after surgery. Complications, not statistically significantly different from those in other studies, occurred in 15 (10.9%), and conversion to an open procedure was required in two (1.5%). The most common postoperative complaint has been dysphagia (21.7%). Operative time averaged 70.6 min, decreasing from an average of 236 min for the first 10 cases to 40.8 min for the last 10. This measure was statistically significantly lower than all other operative times to which it was compared, except one to which it was almost identical (69.9 min). Length of stay (LOS) averaged 2.3 days, ranging from a low of 7 h to a high of 9 days, which made it fall well within limits set by other studies. Overall, LOS fell from a 3.0-day average for the first 20 cases to a 1.9-day average for the last 20 cases. Conclusions: Laparoscopic Nissen fundoplication resolved gastroesophageal reflux in all 138 patients, and measures for complications, operating time, and LOS were well within values reported by other studies, indicating the ability of this procedure to be successfully transferred from academic medical centers to the community hospital setting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004649900615
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