On Spiders Feet
نویسندگان
چکیده
Many visual languages based on Euler diagrams have emerged for expressing relationships between sets. The expressive power of these languages varies, but the majority can only express statements involving unary relations and, sometimes, equality. Spider diagrams are one such language, being equivalent in expressive power to monadic first order logic with equality. Spiders are used to represent the existence of elements or specific individuals and distinct spiders represent distinct elements. In this paper we explore extensions to the spider diagram system.
منابع مشابه
Subdigital setae of chameleon feet: Friction-enhancing microstructures for a wide range of substrate roughness
Hairy adhesive systems of microscopic setae with triangular flattened tips have evolved convergently in spiders, insects and arboreal lizards. The ventral sides of the feet and tails in chameleons are also covered with setae. However, chameleon setae feature strongly elongated narrow spatulae or fibrous tips. The friction enhancing function of these microstructures has so far only been demonstr...
متن کاملBrightening of Homes in the Tropics: Interior Colour Wash
By (Mrs.) DOROTHY GREVAL 166, Lower Circular Road, Calcutta-lit The ordinary whitewashing for the entire interior of the house is monotonous and makes the house look like an office. One remains surrounded by the same colour night and day. Hence the monotony. Colours break the monotony and in addition are restful to the eyes. Colour schemes, however, should be based on, the direction of the ligh...
متن کاملThe Power of Expressing Yourself
UCLA scientists Katharina Kircanski, Matt Lieberman, and Michelle Craske demonstrated the power of words for people with a professed spider phobia. The experiment went something like this: First, the spider phobics were asked to stand outside next to a Chilean rose-haired tarantula (donʼt worry, it was in a container). People were encouraged to approach the spider little by little. On the first...
متن کاملOmega-3 fatty acids as monotherapy in treating depression in pregnant women: a meta-analysis of randomized controlled trials
Background Previous studies have reported inconsistent findings regarding the efficacy of omega-3 fatty acids on pregnant women with major depressive disorder (MDD). This meta-analysis was conducted to systematically evaluate the clinical applicability of omega-3 fatty acids in treating depression in pregnant women. Methods Randomized controlled trials (RCTs) that compared omega-3 fatty acids ...
متن کاملThe diversity of hydrostatic skeletons.
A remarkably diverse group of organisms rely on a hydrostatic skeleton for support, movement, muscular antagonism and the amplification of the force and displacement of muscle contraction. In hydrostatic skeletons, force is transmitted not through rigid skeletal elements but instead by internal pressure. Functioning of these systems depends on the fact that they are essentially constant in volu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005