In this paper a parametric study was undertaken to quantify the sensitivity Abstract to a wide range of coastal detention pond systems dealing with tidal influence to store surface flood water so as to produce general guidance on the importance of the catchment and pond variables. In this process a specified pond design return period was selected for which the system was to be designed. The pon...

Two recent reviews discuss the importance of the female tract in regulating the function of the spermatozoon during its eventful journey to the site of fertilization in this journal. However, our understanding of the nature of this journey, specifically in the human, is remarkably poor. What is also clear is the discourse between what is likely happening in vivo and the design of our experiment...

background: knowledge of radioactivity levels in human diet is of particular concern for the estimation of possible radiological hazards to human health. however, very few surveys of radioactivity in food have been conducted in iran therefore the baseline values of the natural radionuclides concentration (40k, 226ra and 232th), and man made radionuclide, 137cs, were determined in twenty six sam...

with A put in parentheses because unconstrained growth assumes infinite resources. The best illustration of the power of exponential growth is the metaphor of water lilies covering the surface of a pond: “Assume, the lilies are doubling the surface they cover on the pond every year. Three years ago they extended over one eights of the water surface and accordingly were hardly noticed, one year ...

Reasoning about ecosystems includes consideration of causality over temporal and spatial distances; yet learners typically focus on immediate time frames and local contexts. Teaching students to reason beyond these boundaries has met with some success based upon tests that cue students to the types of reasoning required. Virtual worlds offer an opportunity to assess what students actually do in...

THE here and now are defined by astronomy and geology. Astronomy takes care of the here: a planet orbiting a yellow star embedded in one of the spiral arms of the Milky Way, a galaxy that is itself part of the Virgo supercluster, one of millions of similarly vast entities dotted through the sky. Geology deals with the now: the 10,000-year-old Holocene epoch, a peculiarly stable and clement part...

One of the challenging problems for shape editing is to adapt shapes with diversified structures for various editing needs. In this paper we introduce a shape editing approach that automatically adapts the structure of a shape being edited with respect to user inputs. Given a category of shapes, our approach first classifies them into groups based on the constituent parts. The group-sensitive p...

Single image techniques may be very useful for heritage documentation purposes, not only in the particular instances of damaged or destroyed objects but also as auxiliary means for a basic metric reconstruction. In the general case, single images have unknown interior orientation, thus posing the fundamental question of camera calibration (as in several cases no ground control is available). To...