p -Rank and semi-stable reduction of curves II

1998 ◽  
Vol 312 (4) ◽  
pp. 625-639 ◽  
Author(s):  
Mohamed Saïdi
Keyword(s):  
Stable Reduction ◽  
Reduction Of Curves

scholarly journals Degenerate fibres and stable reduction of curves

Topology ◽  
1971 ◽  
Vol 10 (4) ◽  
pp. 373-383 ◽  
Author(s):  
M. Artin ◽  
G. Winters
Keyword(s):  
Stable Reduction ◽  
Reduction Of Curves

Strategic Scripts and Nuclear Disarmament

2018 ◽  
Author(s):  
Matthew Harries ◽  
Benedict Wilkinson
Keyword(s):  
Nuclear Weapons ◽  
Analytical Tool ◽  
The Other ◽  
Nuclear Disarmament ◽  
Stable Reduction ◽  
The Way

This chapter spans Freedman’s earliest focus on nuclear weapons and his development of strategic scripts as an analytical tool over three decades later. It discusses the way in which opposing logics of disarmament and armament co-existed in relation to nuclear weapons. It deploys the notion of strategic scripts to explain the contradictions inherent in approaches to nuclear disarmament, developing the concept of strategic scripts as it does so. The notion of scripts can be used to explore and even to promote nuclear disarmament. Two scripts, one of ‘stable reduction’, the other of ‘disarmament’, each serve to frame thinking. These scripts and the interactions they generate facilitate understanding of the way in which opposite instinctive reactions and, stemming from these, scripts about nuclear weapons co-exist, but are fragile as either an analytical or a strategic tool.

scholarly journals Influence of Ulnar Bow Sign on Surgical Treatment of Missed Bado Type I Monteggia Fracture in Children

2020 ◽  
Author(s):  
Shijie Liao ◽  
Tiantian Wang ◽  
Qian Huang ◽  
Yun Liu ◽  
Rongbin Lu ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Radial Head ◽  
Monteggia Fracture ◽  
Type I ◽  
Ulnar Osteotomy ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Stable Reduction

Abstract PurposeThe present study aimed to explore the influence of ulnar bow on the surgical treatment of Bado type I missed Monteggia fracture in children.MethodsThis study is a retrospective review of 24 patients between November 2010 and March 2019. All patients were treated with open reduction of the radial head and ulnar opening wedge osteotomy without annular ligament reconstruction. The mean interval between injury onset and surgery was five months (range: 2–12 months). The average age of participants at the time of surgery was 6.4 years (range: 3–10 years). We evaluated the maximum ulnar bow (MUB) and MUB position (P-MUB) via radiography. The patients were divided into middle group (group A: 14 cases, MUB located at 40% to 60% of the distal ulna) and distal group (group B: 10 cases, MUB located at 20% to 40% from the distal end of the ulna) based on P-MUB. The mean period of follow-up was 37 months (range: 6–102 months).ResultsAt the last follow-up, all the children showed stable reduction of the radial head, and the flexion function of elbow joint improved after operation (P<0.05). Group A presented a larger the ratio of maximum ulnar bow(R-MUB) and angle of ulnar osteotomy(OA) than group B (P<0.05). There was statistically significant difference between group A and Group B in the P-MUB (P < 0.05). The osteotomy angle was positively correlated with the R-MUB (R2 =0.497,P=0.013), The osteotomy angle was positively correlated with the P-MUB (R2=0.731,P=0.000), The R-MUB is proportional to the P-MUB (R2 =0.597,P=0.002). The regression equation of P-MUB and osteotomy angle: Angle=7.064+33.227* P-MUB (R2=0.459, P =0.000).ConclusionWhen the ulnar bow is positioned at the middle ulna, a stable reduction of radial head need to be achieved through a larger angle in the ulnar osteotomy. If the position of maximum ulnar bow (P-MUB) is closer to the middle of the ulna or the ratio of maximum ulnar bow (R-MUB) is larger, the osteotomy angle is larger.

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