21. Its ventral simple chaetae on each parapodium from about chaetiger 18 are sigmoid and smooth. 22. There are a number of types of SVM such as linear, polynomial, sigmoid etc. 23. The sigmoid function limits the range of the normalized data to values between 0 and 1. 24. Thus, patients without adequate collateralization are at risk for ischemia of the descending and sigmoid colon. 25. Each sigmoid , they said, is like a loaded gun with a high probability of going off. 26. Lateral movements of the sigmoidoscope's tip negotiate the Houston valve and the recto-sigmoid junction. 27. Conidiophores project into the water and bear conidia, which are often sigmoid , branched or tetraradiate structures. 28. Rams and boars have an S-shaped penis with a sigmoid flexure which straightens out during erection. 29. There are other smaller recesses including those around the duodenojejunal flexure, cecum, and the sigmoid colon. 30. In November 1993 she had a resection of the sigmoid colon ( just above the rectum ) for cancer.