für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Numerous factors affect the soil pressure distributions around buried pipes, including shape, size, and stiffness of pipe, burial depth, surrounding soil. Additionally, to some extent, a pipe can benefit from arching effect, where overburden surcharge at crown be supported by adjacent As result, only needs support portion load that is not transferred This paper presents numerical investigations...

Based on the improved three-dimensional finite element model, this paper studies load transfer mechanism of pile-supported reinforced embankments. The model uses an elastic medium to replace soft soil subgrade, which reduces calculation depth subgrade and improves efficiency model. validity is proven by field test results theoretical results. By changing cohesion, internal friction angle, modul...

There are more than 150 ports in China and a considerable proportion of dredged sediments waterways contaminated with heavy metals as the typical contaminants. It is mandatory to remediate prior further resource utilization. The over-arching objective this study was use natural organic acids (oxalic acid, citric tartaric malic acid) leaching agents remove (Cu, Cd, Pb) from sediments. Batch expe...

Formalized rural health service delivery networks are emerging as an over-arching response to the attrition of rural surgical and maternity services in Canada. In effective networks, there is strong collaborative leadership, form follows function, core network elements are identified and site-specific variations are accommodated to meet the surgical needs of the population in each geographic ca...

It is now commonly accepted that N. Goodman's predicate "grue" presents the theory of confirmation of C. G. Hempel (and other such theories) with grave difficulties. The precise nature and status of these "difficulties" has, however, never been made clear. In this paper it is argued that it is very unlikely that "grue" raises any formal difficulties for Hempel and appearances to the contrary ar...

This project involves developing a reading comprehension curriculum based on the Construction-Integration model (Kintsch, 1998) and implementing a pilot efficacy study in middle-school classrooms. The curriculum (BRAVO) explicitly defines the cognitive processes involved in skilled reading, teaching students how to establish local and global text coherence and use background knowledge to create...

Two classifications are presented that organize the major processes and theories addressing the high species diversity of tropical rain forests. The first typology organizes environmental and biological processes within a spatio-temporal hierarchy, whilst the second classifies 12 theories according to over-arching driving forces: genetic differentiation, environmental change, niche/habitat dive...