More than a half of the world's population are infected with one or more species of intestinal worms of which the nematodes Ascaris lumbricoides, Trichuris trichiura and the hookworms are the most common and important in terms of child health. This paper: (1) introduces the main species of intestinal worms with particular attention to intestinal nematodes; (2) examines how such worms may affect child growth and nutrition; (3) reviews the biological and epidemiological factors that influence the effects that worms can have on the growth and nutrition of children; (4) considers the many factors that can affect the impact of treatment with anthelmintic drugs; (5) presents the results of a meta-analysis of studies of the effect of treating worm infections on child growth and nutrition; (6) discusses the results in terms of what is reasonable to expect that deworming alone can achieve; (7) describes some important characteristics of an ideal study of the effects of deworming; and (8) comments on the implications for programmes of recommendations concerning mass deworming.

https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1740-8709.2007.00127.x

A review and meta-analysis of the impact of intestinal worms on child growth and nutrition.

Bearing capacity of geosynthetic encased stone columns

Modelling of floating-slab tracks with continuous slabs under oscillating moving loads

Behaviour of footings on reinforced sand subjected to repeated loading – Comparing use of 3D and planar geotextile

http://wp.kntu.ac.ir/nas_moghaddas/A%20comparison.%20A.pdf

A comparison of static and cyclic loading responses of foundations on geocell-reinforced sand

Steady-state response of an elastically supported infinite beam to a moving load

This paper pertains to the development of a mechanical model to predict the behavior of a geosynthetic-reinforced granular fill over soft soil improved with stone columns. The saturated soft soil has been idealized by Kelvin — Voight model to represent its consolidation behavior. The stone columns are idealized by stiffer springs. Pasternak shear layer and rough elastic membrane represent the granular fill and geosynthetic reinforcement layer, respectively. The nonlinear behavior of the granular fill and the soft soil is considered. Effect of consolidation of the soft soil due to inclusion of the stone columns has also been included in the model. Plane strain conditions are considered for the loading and reinforced foundation soil system. An iterative finite difference scheme is applied for obtaining the solution, and results are presented in nondimensional form. Comparison between the results from the present study and the analytical solution using theory of elasticity shows reasonable agreement. The advantage of using geosynthetic reinforcement is highlighted. Results indicate that inclusion of the geosynthetic layer effectively reduces the settlement. Nonlinearity in the behavior of the soft soil and the granular fill is reduced due to the use of geosynthetic reinforcement layer.

Generalized Model for Geosynthetic-Reinforced Granular Fill-Soft Soil with Stone Columns

A generalized mechanical model for geosynthetic-reinforced foundation soil

Response of multilayer geosynthetic-reinforced bed resting on soft soil with stone columns

This paper presents a model for estimating the flexural response of beams resting on reinforced beds with reinforcing elements, such as geogrids, which are idealised as beams with smooth surface characteristics. The lower poor strata and the upper dense soil are modelled using Winkler springs of different stiffnesses. Taking a surcharge load on the reinforcing elements has incorporated the effect of depth of placement of the reinforced layer. The governing differential equations to find the response of the model have been derived, and closed-form analytical solutions are found subjected to appropriate boundary and continuity conditions. A particular case of the present study matches identically when compared with the solution obtained by Hetenyi for an infinite beam on an elastic foundation. For the range of parameters considered, the results show that practically no change occurs in the normalised deflection of upper and lower beams when the normalised length ratio of beams exceeds 1.5. Further, it is sh...

Sarvesh Chandra

Papers

Steady-state response of an elastically supported infinite beam to a moving load

Generalized Model for Geosynthetic-Reinforced Granular Fill-Soft Soil with Stone Columns

A generalized mechanical model for geosynthetic-reinforced foundation soil

Response of multilayer geosynthetic-reinforced bed resting on soft soil with stone columns

Analysis of beams on reinforced granular beds