1,720,995 research outputs found
A new anoscope for transanal surgery
BACKGROUND:
Although stapled mucosectomy has several advantages over hemorrhoidectomy for hemorrhoidal prolapse, complications such as hemorrhage, pain, and life-threatening pelvic sepsis may occur, often due to poorly executed purse-string suture. We describe a simple new anoscope that makes it easy to correctly perform and position the purse-string suture that is an integral part of stapled mucosectomy.
METHODS:
The apex of the middle part of the new anoscope consists of digitiform projections separated by spaces. After insertion of the instrument into the anus, the inner part is removed, allowing strips of rectal mucosa to protrude through the spaces between the digitiform projections. The purse-string suture is made through these protrusions. The suture catches the mucosa and submucosa but not the deeper muscle layer, which does not protrude through the spaces.
CONCLUSION:
Preliminary histologic studies in the pig suggest that the design of the anoscope prevents inclusion of the muscular layer in the pursestring
PROVE DI LOTTA BIOLOGICA IN PIENO CAMPO CON TRICHODERMA HARZIANUM RIFAI CONTRO IL MARCIUME DELLA BARBABIETOLA DA ZUCCHERO CAUSATO DA SCLEROTIUM ROLFSII SACC.
Effect of Ozone Treatment on Suppressivity of a Composted Sewage Sludge on Meloidogyne incognita
Going Beyond Counting First Authors in Author Co-citation Analysis
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
- …
