Complete row and column symmetry breaking in constraint models using the lex leader method is generally prohibitively costly. Double lex, which is derived from lex leader, is commonly used in practice as an incomplete symmetrybreaking method for row and column symmetries. Double lex is based on a rowwise canonical variable ordering. However, this choice is arbitrary. We investigate other canoni...

A snake (of length L) is a (continuous) piecewise C1-curve S : [0, L] → R, parameterized by arc-length and whose “tail” is at the origin (S(0) = 0). Charming a snake consists in having it move in such a way that its “snout” S(L) follows a chosen C1-curve γ(t). The snake charmer algorithm, initiated in [Ha2] for polygonal snakes and developed in [Ro] in the general case, works as follows. The in...

The Bridelia ferruginea plant as anti-snake venom activity against the venom of a clinically important snake, Naja nigricollis was investigated. The Bridelia ferruginea leaves were dried and extracted with ethanol and bioactive compounds such as tannins alkaloids,saponnin,flavonoids,steroids,terpenoids were determined by standard method. The effect of the extract on some selected enzymes activi...

background: green pit viper bite is an important cause of morbidity in bangladesh. the objective of this study was to investigate the characteristics and clinical presentations of green pit viper bite in bangladesh. methods: this prospective observational study was done in the department of medicine in chittagong medical college hospital, bangladesh. a total of 40 patients with history of green...

This paper gives a treatment of various aspects related to snake locomotion. A mathematical model and a physical implementation of a modular snake robot are presented. A control strategy is also developed, yielding a general expression for different gait patterns. Two forms of locomotion have been simulated with the mathematical model, and experiments with the physical snake robot have been con...

Automatic building extraction is an active research in remote sensing recently. It has been going on for more than 20 years but the automated extractions still encounter problems due to image resolution, variation and level of details. Mayunga et al. (2005) developed an improved snake model. However their radial casting encounters difficulties in initializing the snake model. This research pape...

Snake venom poisoning is a common medical emergency and the epidemiological features vary from region to region. We conducted a prospective study to review the epidemiology, treatment and outcome of snake venom poisoning in central Karnataka. Six hundred and thirty three cases of snake bite, seen in a teaching hospital, upto the age of 18 years, over a period of 8 years from 1985 to 1992 consti...

According to the snake detection hypothesis (Isbell, 2006), fear specifically of snakes may have pushed evolutionary changes in the primate visual system allowing pre-attentional visual detection of fearful stimuli. A previous study demonstrated that snake pictures, when compared to spiders or bird pictures, draw more early attention as reflected by larger early posterior negativity (EPN). Here...